Add release notes

opttimizations -> optimizations
 grabing        -> grabbing
 many resource  -> many resources
 isnt           -> isn't
 silcense       -> silence

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 482c86f231)

.gitattributes

@@ -0,0 +1 @@
+*.pnm -diff -text

.gitignore

@@ -15,6 +15,7 @@
 *.pdb
 *.so
 *.so.*
+*.swp
 *.ver
 *-example
 *-test
@@ -36,8 +37,9 @@
 /doc/avoptions_format.texi
 /doc/doxy/html/
 /doc/examples/avio_reading
-/doc/examples/avcodec
+/doc/examples/decoding_encoding
 /doc/examples/demuxing_decoding
+/doc/examples/extract_mvs
 /doc/examples/filter_audio
 /doc/examples/filtering_audio
 /doc/examples/filtering_video
@@ -48,6 +50,7 @@
 /doc/examples/resampling_audio
 /doc/examples/scaling_video
 /doc/examples/transcode_aac
+/doc/examples/transcoding
 /doc/fate.txt
 /doc/print_options
 /lcov/
@@ -59,7 +62,9 @@
 /tests/audiogen
 /tests/base64
 /tests/data/
+/tests/pixfmts.mak
 /tests/rotozoom
+/tests/test_copy.ffmeta
 /tests/tiny_psnr
 /tests/tiny_ssim
 /tests/videogen
@@ -78,6 +83,8 @@
 /tools/pktdumper
 /tools/probetest
 /tools/qt-faststart
+/tools/sidxindex
 /tools/trasher
 /tools/seek_print
+/tools/uncoded_frame
 /tools/zmqsend

Changelog

@@ -1,7 +1,113 @@
 Entries are sorted chronologically from oldest to youngest within each release,
 releases are sorted from youngest to oldest.
 
-version <next>
+version 2.6:
+- nvenc encoder
+- 10bit spp filter
+- colorlevels filter
+- RIFX format for *.wav files
+- RTP/mpegts muxer
+- non continuous cache protocol support
+- tblend filter
+- cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
+- Camellia symmetric block cipher
+- OpenH264 encoder wrapper
+- VOC seeking support
+- Closed caption Decoder
+- fspp, uspp, pp7 MPlayer postprocessing filters ported to native filters
+- showpalette filter
+- Twofish symmetric block cipher
+- Support DNx100 (960x720@8)
+- eq2 filter ported from libmpcodecs as eq filter
+- removed libmpcodecs
+- Changed default DNxHD colour range in QuickTime .mov derivatives to mpeg range
+- ported softpulldown filter from libmpcodecs as repeatfields filter
+- dcshift filter
+- RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
+- RTP depacketizer for AC3 payload format (RFC 4184)
+- palettegen and paletteuse filters
+- VP9 RTP payload format (draft 0) experimental depacketizer
+- RTP depacketizer for DV (RFC 6469)
+- DXVA2-accelerated HEVC decoding
+- AAC ELD 480 decoding
+- Intel QSV-accelerated H.264 decoding
+- DSS SP decoder and DSS demuxer
+- Fix stsd atom corruption in DNxHD QuickTimes
+- Canopus HQX decoder
+- RTP depacketization of T.140 text (RFC 4103)
+- VP9 RTP payload format (draft 0) experimental depacketizer
+- Port MIPS optimizations to 64-bit
+
+
+version 2.5:
+- HEVC/H.265 RTP payload format (draft v6) packetizer
+- SUP/PGS subtitle demuxer
+- ffprobe -show_pixel_formats option
+- CAST128 symmetric block cipher, ECB mode
+- STL subtitle demuxer and decoder
+- libutvideo YUV 4:2:2 10bit support
+- XCB-based screen-grabber
+- UDP-Lite support (RFC 3828)
+- xBR scaling filter
+- AVFoundation screen capturing support
+- ffserver supports codec private options
+- creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
+- WebP muxer with animated WebP support
+- zygoaudio decoding support
+- APNG demuxer
+- postproc visualization support
+
+
+version 2.4:
+- Icecast protocol
+- ported lenscorrection filter from frei0r filter
+- large optimizations in dctdnoiz to make it usable
+- ICY metadata are now requested by default with the HTTP protocol
+- support for using metadata in stream specifiers in fftools
+- LZMA compression support in TIFF decoder
+- H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
+- HEVC/H.265 RTP payload format (draft v6) depacketizer
+- added codecview filter to visualize information exported by some codecs
+- Matroska 3D support thorugh side data
+- HTML generation using texi2html is deprecated in favor of makeinfo/texi2any
+- silenceremove filter
+
+
+version 2.3:
+- AC3 fixed-point decoding
+- shuffleplanes filter
+- subfile protocol
+- Phantom Cine demuxer
+- replaygain data export
+- VP7 video decoder
+- Alias PIX image encoder and decoder
+- Improvements to the BRender PIX image decoder
+- Improvements to the XBM decoder
+- QTKit input device
+- improvements to OpenEXR image decoder
+- support decoding 16-bit RLE SGI images
+- GDI screen grabbing for Windows
+- alternative rendition support for HTTP Live Streaming
+- AVFoundation input device
+- Direct Stream Digital (DSD) decoder
+- Magic Lantern Video (MLV) demuxer
+- On2 AVC (Audio for Video) decoder
+- support for decoding through DXVA2 in ffmpeg
+- libbs2b-based stereo-to-binaural audio filter
+- libx264 reference frames count limiting depending on level
+- native Opus decoder
+- display matrix export and rotation API
+- WebVTT encoder
+- showcqt multimedia filter
+- zoompan filter
+- signalstats filter
+- hqx filter (hq2x, hq3x, hq4x)
+- flanger filter
+- Image format auto-detection
+- LRC demuxer and muxer
+- Samba protocol (via libsmbclient)
+- WebM DASH Manifest muxer
+- libfribidi support in drawtext
 
 
 version 2.2:
@@ -31,6 +137,8 @@ version 2.2:
 - Support DNx444
 - libx265 encoder
 - dejudder filter
+- Autodetect VDA like all other hardware accelerations
+- aliases and defaults for Ogg subtypes (opus, spx)
 
 
 version 2.1:
@@ -218,7 +326,7 @@ version 1.1:
 - JSON captions for TED talks decoding support
 - SOX Resampler support in libswresample
 - aselect filter
-- SGI RLE 8-bit decoder
+- SGI RLE 8-bit / Silicon Graphics RLE 8-bit video decoder
 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
 - Silicon Graphics Movie demuxer
 - apad filter
@@ -262,7 +370,9 @@ version 1.0:
 - RTMPE protocol support
 - RTMPTE protocol support
 - showwaves and showspectrum filter
-- LucasArts SMUSH playback support
+- LucasArts SMUSH SANM playback support
+- LucasArts SMUSH VIMA audio decoder (ADPCM)
+- LucasArts SMUSH demuxer
 - SAMI, RealText and SubViewer demuxers and decoders
 - Heart Of Darkness PAF playback support
 - iec61883 device
@@ -386,6 +496,7 @@ version 0.10:
 - ffwavesynth decoder
 - aviocat tool
 - ffeval tool
+- support encoding and decoding 4-channel SGI images
 
 
 version 0.9:

INSTALL

@@ -1,15 +0,0 @@
-
-1) Type './configure' to create the configuration. A list of configure
-options is printed by running 'configure --help'.
-
-'configure' can be launched from a directory different from the FFmpeg
-sources to build the objects out of tree. To do this, use an absolute
-path when launching 'configure', e.g. '/ffmpegdir/ffmpeg/configure'.
-
-2) Then type 'make' to build FFmpeg. GNU Make 3.81 or later is required.
-
-3) Type 'make install' to install all binaries and libraries you built.
-
-NOTICE
-
- - Non system dependencies (e.g. libx264, libvpx) are disabled by default.

INSTALL.md

@@ -0,0 +1,17 @@
+#Installing FFmpeg:
+
+1. Type `./configure` to create the configuration. A list of configure
+options is printed by running `configure --help`.
+
+    `configure` can be launched from a directory different from the FFmpeg
+sources to build the objects out of tree. To do this, use an absolute
+path when launching `configure`, e.g. `/ffmpegdir/ffmpeg/configure`.
+
+2. Then type `make` to build FFmpeg. GNU Make 3.81 or later is required.
+
+3. Type `make install` to install all binaries and libraries you built.
+
+NOTICE
+------
+
+ - Non system dependencies (e.g. libx264, libvpx) are disabled by default.

LICENSE.md

@@ -1,67 +1,73 @@
-FFmpeg:
+#FFmpeg:
 
 Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
-or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other
+or later (LGPL v2.1+). Read the file `COPYING.LGPLv2.1` for details. Some other
 files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
 FFmpeg.
 
 Some optional parts of FFmpeg are licensed under the GNU General Public License
-version 2 or later (GPL v2+). See the file COPYING.GPLv2 for details. None of
-these parts are used by default, you have to explicitly pass --enable-gpl to
+version 2 or later (GPL v2+). See the file `COPYING.GPLv2` for details. None of
+these parts are used by default, you have to explicitly pass `--enable-gpl` to
 configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
 
-Specifically, the GPL parts of FFmpeg are
+Specifically, the GPL parts of FFmpeg are:
 
 - libpostproc
-- libmpcodecs
 - optional x86 optimizations in the files
-  libavcodec/x86/idct_mmx.c
+  - `libavcodec/x86/flac_dsp_gpl.asm`
+  - `libavcodec/x86/idct_mmx.c`
 - libutvideo encoding/decoding wrappers in
-  libavcodec/libutvideo*.cpp
-- the X11 grabber in libavdevice/x11grab.c
+  `libavcodec/libutvideo*.cpp`
+- the X11 grabber in `libavdevice/x11grab.c`
 - the swresample test app in
-  libswresample/swresample-test.c
-- the texi2pod.pl tool
+  `libswresample/swresample-test.c`
+- the `texi2pod.pl` tool
 - the following filters in libavfilter:
-    - f_ebur128.c
-    - vf_blackframe.c
-    - vf_boxblur.c
-    - vf_colormatrix.c
-    - vf_cropdetect.c
-    - vf_decimate.c
-    - vf_delogo.c
-    - vf_geq.c
-    - vf_histeq.c
-    - vf_hqdn3d.c
-    - vf_kerndeint.c
-    - vf_mcdeint.c
-    - vf_mp.c
-    - vf_owdenoise.c
-    - vf_perspective.c
-    - vf_phase.c
-    - vf_pp.c
-    - vf_pullup.c
-    - vf_sab.c
-    - vf_smartblur.c
-    - vf_spp.c
-    - vf_stereo3d.c
-    - vf_super2xsai.c
-    - vf_tinterlace.c
-    - vsrc_mptestsrc.c
+    - `f_ebur128.c`
+    - `vf_blackframe.c`
+    - `vf_boxblur.c`
+    - `vf_colormatrix.c`
+    - `vf_cropdetect.c`
+    - `vf_delogo.c`
+    - `vf_eq.c`
+    - `vf_fspp.c`
+    - `vf_geq.c`
+    - `vf_histeq.c`
+    - `vf_hqdn3d.c`
+    - `vf_interlace.c`
+    - `vf_kerndeint.c`
+    - `vf_mcdeint.c`
+    - `vf_mpdecimate.c`
+    - `vf_owdenoise.c`
+    - `vf_perspective.c`
+    - `vf_phase.c`
+    - `vf_pp.c`
+    - `vf_pp7.c`
+    - `vf_pullup.c`
+    - `vf_sab.c`
+    - `vf_smartblur.c`
+    - `vf_repeatfields.c`
+    - `vf_spp.c`
+    - `vf_stereo3d.c`
+    - `vf_super2xsai.c`
+    - `vf_tinterlace.c`
+    - `vf_uspp.c`
+    - `vsrc_mptestsrc.c`
 
 Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
-the configure parameter --enable-version3 will activate this licensing option
-for you. Read the file COPYING.LGPLv3 or, if you have enabled GPL parts,
-COPYING.GPLv3 to learn the exact legal terms that apply in this case.
+the configure parameter `--enable-version3` will activate this licensing option
+for you. Read the file `COPYING.LGPLv3` or, if you have enabled GPL parts,
+`COPYING.GPLv3` to learn the exact legal terms that apply in this case.
 
 There are a handful of files under other licensing terms, namely:
 
-* The files libavcodec/jfdctfst.c, libavcodec/jfdctint_template.c and
-  libavcodec/jrevdct.c are taken from libjpeg, see the top of the files for
+* The files `libavcodec/jfdctfst.c`, `libavcodec/jfdctint_template.c` and
+  `libavcodec/jrevdct.c` are taken from libjpeg, see the top of the files for
   licensing details. Specifically note that you must credit the IJG in the
   documentation accompanying your program if you only distribute executables.
   You must also indicate any changes including additions and deletions to
   those three files in the documentation.
+* `tests/reference.pnm` is under the expat license.
 
 
 external libraries
@@ -74,21 +80,22 @@ compatible libraries
 --------------------
 
 The following libraries are under GPL:
-    - frei0r
-    - libcdio
-    - libutvideo
-    - libvidstab
-    - libx264
-    - libx265
-    - libxavs
-    - libxvid
+- frei0r
+- libcdio
+- libutvideo
+- libvidstab
+- libx264
+- libx265
+- libxavs
+- libxvid
+
 When combining them with FFmpeg, FFmpeg needs to be licensed as GPL as well by
-passing --enable-gpl to configure.
+passing `--enable-gpl` to configure.
 
 The OpenCORE and VisualOn libraries are under the Apache License 2.0. That
 license is incompatible with the LGPL v2.1 and the GPL v2, but not with
 version 3 of those licenses. So to combine these libraries with FFmpeg, the
-license version needs to be upgraded by passing --enable-version3 to configure.
+license version needs to be upgraded by passing `--enable-version3` to configure.
 
 incompatible libraries
 ----------------------
@@ -96,7 +103,7 @@ incompatible libraries
 The Fraunhofer AAC library, FAAC and aacplus are under licenses which
 are incompatible with the GPLv2 and v3. We do not know for certain if their
 licenses are compatible with the LGPL.
-If you wish to enable these libraries, pass --enable-nonfree to configure.
+If you wish to enable these libraries, pass `--enable-nonfree` to configure.
 But note that if you enable any of these libraries the resulting binary will
 be under a complex license mix that is more restrictive than the LGPL and that
 may result in additional obligations. It is possible that these

MAINTAINERS

@@ -44,8 +44,8 @@ Miscellaneous Areas
 ===================
 
 documentation                           Stefano Sabatini, Mike Melanson, Timothy Gu
-build system (configure,Makefiles)      Diego Biurrun, Mans Rullgard
-project server                          Árpád Gereöffy, Michael Niedermayer, Reimar Döffinger, Alexander Strasser
+build system (configure, makefiles)     Diego Biurrun, Mans Rullgard
+project server                          Árpád Gereöffy, Michael Niedermayer, Reimar Doeffinger, Alexander Strasser
 presets                                 Robert Swain
 metadata subsystem                      Aurelien Jacobs
 release management                      Michael Niedermayer
@@ -54,8 +54,10 @@ release management                      Michael Niedermayer
 Communication
 =============
 
-website                                 Robert Swain, Lou Logan
-mailinglists                            Michael Niedermayer, Baptiste Coudurier, Lou Logan
+website                                 Deby Barbara Lepage
+fate.ffmpeg.org                         Timothy Gu
+Trac bug tracker                        Alexander Strasser, Michael Niedermayer, Carl Eugen Hoyos, Lou Logan
+mailing lists                           Michael Niedermayer, Baptiste Coudurier, Lou Logan
 Google+                                 Paul B Mahol, Michael Niedermayer, Alexander Strasser
 Twitter                                 Lou Logan
 Launchpad                               Timothy Gu
@@ -73,6 +75,7 @@ Other:
   bprint                                Nicolas George
   bswap.h
   des                                   Reimar Doeffinger
+  dynarray.h                            Nicolas George
   eval.c, eval.h                        Michael Niedermayer
   float_dsp                             Loren Merritt
   hash                                  Reimar Doeffinger
@@ -129,6 +132,7 @@ Generic Parts:
     tableprint.c, tableprint.h          Reimar Doeffinger
   fixed point FFT:
     fft*                                Zeljko Lukac
+  Text Subtitles                        Clément Bœsch
 
 Codecs:
   4xm.c                                 Michael Niedermayer
@@ -152,6 +156,7 @@ Codecs:
   celp_filters.*                        Vitor Sessak
   cinepak.c                             Roberto Togni
   cinepakenc.c                          Rl / Aetey G.T. AB
+  ccaption_dec.c                        Anshul Maheshwari
   cljr                                  Alex Beregszaszi
   cllc.c                                Derek Buitenhuis
   cook.c, cookdata.h                    Benjamin Larsson
@@ -161,12 +166,15 @@ Codecs:
   dca.c                                 Kostya Shishkov, Benjamin Larsson
   dnxhd*                                Baptiste Coudurier
   dpcm.c                                Mike Melanson
+  dss_sp.c                              Oleksij Rempel, Michael Niedermayer
   dv.c                                  Roman Shaposhnik
+  dvbsubdec.c                           Anshul Maheshwari
   dxa.c                                 Kostya Shishkov
   eacmv*, eaidct*, eat*                 Peter Ross
   exif.c, exif.h                        Thilo Borgmann
-  ffv1.c                                Michael Niedermayer
+  ffv1*                                 Michael Niedermayer
   ffwavesynth.c                         Nicolas George
+  fic.c                                 Derek Buitenhuis
   flac*                                 Justin Ruggles
   flashsv*                              Benjamin Larsson
   flicvideo.c                           Mike Melanson
@@ -176,7 +184,7 @@ Codecs:
   h261*                                 Michael Niedermayer
   h263*                                 Michael Niedermayer
   h264*                                 Loren Merritt, Michael Niedermayer
-  huffyuv.c                             Michael Niedermayer
+  huffyuv*                              Michael Niedermayer, Christophe Gisquet
   idcinvideo.c                          Mike Melanson
   imc*                                  Benjamin Larsson
   indeo2*                               Kostya Shishkov
@@ -220,6 +228,7 @@ Codecs:
   msvideo1.c                            Mike Melanson
   nellymoserdec.c                       Benjamin Larsson
   nuv.c                                 Reimar Doeffinger
+  nvenc.c                               Timo Rothenpieler
   paf.*                                 Paul B Mahol
   pcx.c                                 Ivo van Poorten
   pgssubdec.c                           Reimar Doeffinger
@@ -236,12 +245,12 @@ Codecs:
   rtjpeg.c, rtjpeg.h                    Reimar Doeffinger
   rv10.c                                Michael Niedermayer
   rv3*                                  Kostya Shishkov
-  rv4*                                  Kostya Shishkov
+  rv4*                                  Kostya Shishkov, Christophe Gisquet
   s3tc*                                 Ivo van Poorten
   smacker.c                             Kostya Shishkov
   smc.c                                 Mike Melanson
   smvjpegdec.c                          Ash Hughes
-  snow.c                                Michael Niedermayer, Loren Merritt
+  snow*                                 Michael Niedermayer, Loren Merritt
   sonic.c                               Alex Beregszaszi
   srt*                                  Aurelien Jacobs
   sunrast.c                             Ivo van Poorten
@@ -260,13 +269,13 @@ Codecs:
   v410*.c                               Derek Buitenhuis
   vb.c                                  Kostya Shishkov
   vble.c                                Derek Buitenhuis
-  vc1*                                  Kostya Shishkov
+  vc1*                                  Kostya Shishkov, Christophe Gisquet
   vcr1.c                                Michael Niedermayer
   vda_h264_dec.c                        Xidorn Quan
   vima.c                                Paul B Mahol
   vmnc.c                                Kostya Shishkov
-  vorbis_dec.c                          Denes Balatoni, David Conrad
-  vorbis_enc.c                          Oded Shimon
+  vorbisdec.c                           Denes Balatoni, David Conrad
+  vorbisenc.c                           Oded Shimon
   vp3*                                  Mike Melanson
   vp5                                   Aurelien Jacobs
   vp6                                   Aurelien Jacobs
@@ -302,16 +311,21 @@ libavdevice
     libavdevice/avdevice.h
 
 
-  dshow.c                               Roger Pack
+  avfoundation.m                        Thilo Borgmann
+  decklink*                             Deti Fliegl
+  dshow.c                               Roger Pack (CC rogerdpack@gmail.com)
   fbdev_enc.c                           Lukasz Marek
+  gdigrab.c                             Roger Pack (CC rogerdpack@gmail.com)
   iec61883.c                            Georg Lippitsch
   lavfi                                 Stefano Sabatini
   libdc1394.c                           Roman Shaposhnik
   opengl_enc.c                          Lukasz Marek
   pulse_audio_enc.c                     Lukasz Marek
+  qtkit.m                               Thilo Borgmann
   sdl                                   Stefano Sabatini
-  v4l2.c                                Luca Abeni
+  v4l2.c                                Giorgio Vazzana
   vfwcap.c                              Ramiro Polla
+  xv.c                                  Lukasz Marek
 
 libavfilter
 ===========
@@ -333,7 +347,9 @@ Filters:
   af_compand.c                          Paul B Mahol
   af_ladspa.c                           Paul B Mahol
   af_pan.c                              Nicolas George
+  af_silenceremove.c                    Paul B Mahol
   avf_avectorscope.c                    Paul B Mahol
+  avf_showcqt.c                         Muhammad Faiz
   vf_blend.c                            Paul B Mahol
   vf_colorbalance.c                     Paul B Mahol
   vf_dejudder.c                         Nicholas Robbins
@@ -341,7 +357,10 @@ Filters:
   vf_drawbox.c/drawgrid                 Andrey Utkin
   vf_extractplanes.c                    Paul B Mahol
   vf_histogram.c                        Paul B Mahol
+  vf_hqx.c                              Clément Bœsch
+  vf_idet.c                             Pascal Massimino
   vf_il.c                               Paul B Mahol
+  vf_lenscorrection.c                   Daniel Oberhoff
   vf_mergeplanes.c                      Paul B Mahol
   vf_psnr.c                             Paul B Mahol
   vf_scale.c                            Michael Niedermayer
@@ -370,6 +389,7 @@ Muxers/Demuxers:
   aiffdec.c                             Baptiste Coudurier, Matthieu Bouron
   aiffenc.c                             Baptiste Coudurier, Matthieu Bouron
   ape.c                                 Kostya Shishkov
+  apngdec.c                             Benoit Fouet
   ass*                                  Aurelien Jacobs
   astdec.c                              Paul B Mahol
   astenc.c                              James Almer
@@ -382,6 +402,7 @@ Muxers/Demuxers:
   cdxl.c                                Paul B Mahol
   crc.c                                 Michael Niedermayer
   daud.c                                Reimar Doeffinger
+  dss.c                                 Oleksij Rempel, Michael Niedermayer
   dtshddec.c                            Paul B Mahol
   dv.c                                  Roman Shaposhnik
   dxa.c                                 Kostya Shishkov
@@ -411,6 +432,7 @@ Muxers/Demuxers:
   matroska.c                            Aurelien Jacobs
   matroskadec.c                         Aurelien Jacobs
   matroskaenc.c                         David Conrad
+  matroska subtitles (matroskaenc.c)    John Peebles
   metadata*                             Aurelien Jacobs
   mgsts.c                               Paul B Mahol
   microdvd*                             Aurelien Jacobs
@@ -420,14 +442,15 @@ Muxers/Demuxers:
   mpc.c                                 Kostya Shishkov
   mpeg.c                                Michael Niedermayer
   mpegenc.c                             Michael Niedermayer
-  mpegts*                               Baptiste Coudurier
+  mpegts.c                              Marton Balint
+  mpegtsenc.c                           Baptiste Coudurier
   msnwc_tcp.c                           Ramiro Polla
   mtv.c                                 Reynaldo H. Verdejo Pinochet
   mxf*                                  Baptiste Coudurier
   mxfdec.c                              Tomas Härdin
   nistspheredec.c                       Paul B Mahol
   nsvdec.c                              Francois Revol
-  nut.c                                 Michael Niedermayer
+  nut*                                  Michael Niedermayer
   nuv.c                                 Reimar Doeffinger
   oggdec.c, oggdec.h                    David Conrad
   oggenc.c                              Baptiste Coudurier
@@ -444,12 +467,19 @@ Muxers/Demuxers:
   rmdec.c, rmenc.c                      Ronald S. Bultje, Kostya Shishkov
   rtmp*                                 Kostya Shishkov
   rtp.c, rtpenc.c                       Martin Storsjo
+  rtpdec_ac3.*                          Gilles Chanteperdrix
+  rtpdec_dv.*                           Thomas Volkert
+  rtpdec_h261.*, rtpenc_h261.*          Thomas Volkert
+  rtpdec_hevc.*, rtpenc_hevc.*          Thomas Volkert
+  rtpdec_mpa_robust.*                   Gilles Chanteperdrix
   rtpdec_asf.*                          Ronald S. Bultje
+  rtpdec_vp9.c                          Thomas Volkert
   rtpenc_mpv.*, rtpenc_aac.*            Martin Storsjo
   rtsp.c                                Luca Barbato
   sbgdec.c                              Nicolas George
   sdp.c                                 Martin Storsjo
   segafilm.c                            Mike Melanson
+  segment.c                             Stefano Sabatini
   siff.c                                Kostya Shishkov
   smacker.c                             Kostya Shishkov
   smjpeg*                               Paul B Mahol
@@ -462,6 +492,7 @@ Muxers/Demuxers:
   voc.c                                 Aurelien Jacobs
   wav.c                                 Michael Niedermayer
   wc3movie.c                            Mike Melanson
+  webm dash (matroskaenc.c)             Vignesh Venkatasubramanian
   webvtt*                               Matthew J Heaney
   westwood.c                            Mike Melanson
   wtv.c                                 Peter Ross
@@ -475,6 +506,7 @@ Protocols:
   libssh.c                              Lukasz Marek
   mms*.c                                Ronald S. Bultje
   udp.c                                 Luca Abeni
+  icecast.c                             Marvin Scholz
 
 
 libswresample
@@ -503,6 +535,8 @@ Amiga / PowerPC                         Colin Ward
 Linux / PowerPC                         Luca Barbato
 Windows MinGW                           Alex Beregszaszi, Ramiro Polla
 Windows Cygwin                          Victor Paesa
+Windows MSVC                            Matthew Oliver
+Windows ICL                             Matthew Oliver
 ADI/Blackfin DSP                        Marc Hoffman
 Sparc                                   Roman Shaposhnik
 x86                                     Michael Niedermayer
@@ -511,9 +545,10 @@ x86                                     Michael Niedermayer
 Releases
 ========
 
+2.6                                     Michael Niedermayer
+2.5                                     Michael Niedermayer
+2.4                                     Michael Niedermayer
 2.2                                     Michael Niedermayer
-2.1                                     Michael Niedermayer
-1.2                                     Michael Niedermayer
 
 If you want to maintain an older release, please contact us
 
@@ -529,7 +564,7 @@ Attila Kinali                 11F0 F9A6 A1D2 11F6 C745 D10C 6520 BCDD F2DF E765
 Baptiste Coudurier            8D77 134D 20CC 9220 201F C5DB 0AC9 325C 5C1A BAAA
 Ben Littler                   3EE3 3723 E560 3214 A8CD 4DEB 2CDB FCE7 768C 8D2C
 Benoit Fouet                  B22A 4F4F 43EF 636B BB66 FCDC 0023 AE1E 2985 49C8
-Bœsch Clément                 52D0 3A82 D445 F194 DB8B 2B16 87EE 2CB8 F4B8 FCF9
+Clément Bœsch                 52D0 3A82 D445 F194 DB8B 2B16 87EE 2CB8 F4B8 FCF9
 Daniel Verkamp                78A6 07ED 782C 653E C628 B8B9 F0EB 8DD8 2F0E 21C7
 Diego Biurrun                 8227 1E31 B6D9 4994 7427 E220 9CAE D6CC 4757 FCC5
 FFmpeg release signing key    FCF9 86EA 15E6 E293 A564 4F10 B432 2F04 D676 58D8
@@ -544,12 +579,14 @@ Michael Niedermayer           9FF2 128B 147E F673 0BAD F133 611E C787 040B 0FAB
 Nicolas George                24CE 01CE 9ACC 5CEB 74D8 8D9D B063 D997 36E5 4C93
 Panagiotis Issaris            6571 13A3 33D9 3726 F728 AA98 F643 B12E ECF3 E029
 Peter Ross                    A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B
-Reimar Döffinger              C61D 16E5 9E2C D10C 8958 38A4 0899 A2B9 06D4 D9C7
+Reimar Doeffinger             C61D 16E5 9E2C D10C 8958 38A4 0899 A2B9 06D4 D9C7
 Reinhard Tartler              9300 5DC2 7E87 6C37 ED7B CA9A 9808 3544 9453 48A4
 Reynaldo H. Verdejo Pinochet  6E27 CD34 170C C78E 4D4F 5F40 C18E 077F 3114 452A
 Robert Swain                  EE7A 56EA 4A81 A7B5 2001 A521 67FA 362D A2FC 3E71
 Sascha Sommer                 38A0 F88B 868E 9D3A 97D4 D6A0 E823 706F 1E07 0D3C
 Stefano Sabatini              0D0B AD6B 5330 BBAD D3D6 6A0C 719C 2839 FC43 2D5F
 Stephan Hilb                  4F38 0B3A 5F39 B99B F505 E562 8D5C 5554 4E17 8863
+Tiancheng "Timothy" Gu        9456 AFC0 814A 8139 E994 8351 7FE6 B095 B582 B0D4
+Tim Nicholson                 38CF DB09 3ED0 F607 8B67 6CED 0C0B FC44 8B0B FC83
 Tomas Härdin                  A79D 4E3D F38F 763F 91F5 8B33 A01E 8AE0 41BB 2551
 Wei Gao                       4269 7741 857A 0E60 9EC5 08D2 4744 4EFA 62C1 87B9

Makefile

@@ -4,6 +4,7 @@ include config.mak
 vpath %.c    $(SRC_PATH)
 vpath %.cpp  $(SRC_PATH)
 vpath %.h    $(SRC_PATH)
+vpath %.m    $(SRC_PATH)
 vpath %.S    $(SRC_PATH)
 vpath %.asm  $(SRC_PATH)
 vpath %.rc   $(SRC_PATH)
@@ -29,19 +30,24 @@ $(foreach prog,$(AVBASENAMES),$(eval OBJS-$(prog)-$(CONFIG_OPENCL) += cmdutils_o
 
 OBJS-ffmpeg                   += ffmpeg_opt.o ffmpeg_filter.o
 OBJS-ffmpeg-$(HAVE_VDPAU_X11) += ffmpeg_vdpau.o
+OBJS-ffmpeg-$(HAVE_DXVA2_LIB) += ffmpeg_dxva2.o
+OBJS-ffmpeg-$(CONFIG_VDA)     += ffmpeg_vda.o
+OBJS-ffserver                 += ffserver_config.o
+
 TESTTOOLS   = audiogen videogen rotozoom tiny_psnr tiny_ssim base64
 HOSTPROGS  := $(TESTTOOLS:%=tests/%) doc/print_options
 TOOLS       = qt-faststart trasher uncoded_frame
 TOOLS-$(CONFIG_ZLIB) += cws2fws
 
-FFLIBS-$(CONFIG_AVDEVICE) += avdevice
-FFLIBS-$(CONFIG_AVFILTER) += avfilter
-FFLIBS-$(CONFIG_AVFORMAT) += avformat
+# $(FFLIBS-yes) needs to be in linking order
+FFLIBS-$(CONFIG_AVDEVICE)   += avdevice
+FFLIBS-$(CONFIG_AVFILTER)   += avfilter
+FFLIBS-$(CONFIG_AVFORMAT)   += avformat
+FFLIBS-$(CONFIG_AVCODEC)    += avcodec
 FFLIBS-$(CONFIG_AVRESAMPLE) += avresample
-FFLIBS-$(CONFIG_AVCODEC)  += avcodec
-FFLIBS-$(CONFIG_POSTPROC) += postproc
-FFLIBS-$(CONFIG_SWRESAMPLE)+= swresample
-FFLIBS-$(CONFIG_SWSCALE)  += swscale
+FFLIBS-$(CONFIG_POSTPROC)   += postproc
+FFLIBS-$(CONFIG_SWRESAMPLE) += swresample
+FFLIBS-$(CONFIG_SWSCALE)    += swscale
 
 FFLIBS := avutil
 
@@ -58,7 +64,7 @@ FF_DEP_LIBS  := $(DEP_LIBS)
 all: $(AVPROGS)
 
 $(TOOLS): %$(EXESUF): %.o $(EXEOBJS)
-	$(LD) $(LDFLAGS) $(LD_O) $^ $(ELIBS)
+	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS)
 
 tools/cws2fws$(EXESUF): ELIBS = $(ZLIB)
 tools/uncoded_frame$(EXESUF): $(FF_DEP_LIBS)
@@ -72,10 +78,9 @@ config.h: .config
 
 SUBDIR_VARS := CLEANFILES EXAMPLES FFLIBS HOSTPROGS TESTPROGS TOOLS      \
                HEADERS ARCH_HEADERS BUILT_HEADERS SKIPHEADERS            \
-               ARMV5TE-OBJS ARMV6-OBJS VFP-OBJS NEON-OBJS                \
-               ALTIVEC-OBJS VIS-OBJS                                     \
-               MMX-OBJS YASM-OBJS                                        \
-               MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSPR1-OBJS MIPS32R2-OBJS  \
+               ARMV5TE-OBJS ARMV6-OBJS ARMV8-OBJS VFP-OBJS NEON-OBJS     \
+               ALTIVEC-OBJS MMX-OBJS YASM-OBJS                           \
+               MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSPR1-OBJS                \
                OBJS SLIBOBJS HOSTOBJS TESTOBJS
 
 define RESET
@@ -88,6 +93,7 @@ $(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
 SUBDIR := $(1)/
 include $(SRC_PATH)/$(1)/Makefile
 -include $(SRC_PATH)/$(1)/$(ARCH)/Makefile
+-include $(SRC_PATH)/$(1)/$(INTRINSICS)/Makefile
 include $(SRC_PATH)/library.mak
 endef
 
@@ -106,14 +112,14 @@ endef
 
 $(foreach P,$(PROGS),$(eval $(call DOPROG,$(P:$(PROGSSUF)$(EXESUF)=))))
 
-ffprobe.o cmdutils.o : libavutil/ffversion.h
+ffprobe.o cmdutils.o libavcodec/utils.o libavformat/utils.o libavdevice/avdevice.o libavfilter/avfilter.o libavutil/utils.o libpostproc/postprocess.o libswresample/swresample.o libswscale/utils.o : libavutil/ffversion.h
 
 $(PROGS): %$(PROGSSUF)$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
 	$(CP) $< $@
 	$(STRIP) $@
 
 %$(PROGSSUF)_g$(EXESUF): %.o $(FF_DEP_LIBS)
-	$(LD) $(LDFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)
+	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)
 
 OBJDIRS += tools
 

README

@@ -1,18 +0,0 @@
-FFmpeg README
--------------
-
-1) Documentation
-----------------
-
-* Read the documentation in the doc/ directory in git.
-  You can also view it online at http://ffmpeg.org/documentation.html
-
-2) Licensing
-------------
-
-* See the LICENSE file.
-
-3) Build and Install
---------------------
-
-* See the INSTALL file.

README.md

@@ -0,0 +1,42 @@
+FFmpeg README
+=============
+
+FFmpeg is a collection of libraries and tools to process multimedia content
+such as audio, video, subtitles and related metadata.
+
+## Libraries
+
+* `libavcodec` provides implementation of a wider range of codecs.
+* `libavformat` implements streaming protocols, container formats and basic I/O access.
+* `libavutil` includes hashers, decompressors and miscellaneous utility functions.
+* `libavfilter` provides a mean to alter decoded Audio and Video through chain of filters.
+* `libavdevice` provides an abstraction to access capture and playback devices.
+* `libswresample` implements audio mixing and resampling routines.
+* `libswscale` implements color conversion and scaling routines.
+
+## Tools
+
+* [ffmpeg](http://ffmpeg.org/ffmpeg.html) is a command line toolbox to
+  manipulate, convert and stream multimedia content.
+* [ffplay](http://ffmpeg.org/ffplay.html) is a minimalistic multimedia player.
+* [ffprobe](http://ffmpeg.org/ffprobe.html) is a simple analysis tool to inspect
+  multimedia content.
+* [ffserver](http://ffmpeg.org/ffserver.html) is a multimedia streaming server
+  for live broadcasts.
+* Additional small tools such as `aviocat`, `ismindex` and `qt-faststart`.
+
+## Documentation
+
+The offline documentation is available in the **doc/** directory.
+
+The online documentation is available in the main [website](http://ffmpeg.org)
+and in the [wiki](http://trac.ffmpeg.org).
+
+### Examples
+
+Coding examples are available in the **doc/examples** directory.
+
+## License
+
+FFmpeg codebase is mainly LGPL-licensed with optional components licensed under
+GPL. Please refer to the LICENSE file for detailed information.

RELEASE

@@ -1 +1 @@
-2.1.git
+2.6

RELEASE_NOTES

@@ -0,0 +1,66 @@
+
+              ┌─────────────────────────────────────────────┐
+              │ RELEASE NOTES for FFmpeg 2.6 "Grothendieck" │
+              └─────────────────────────────────────────────┘
+
+   The FFmpeg Project proudly presents FFmpeg 2.6 "Grothendieck", about 3
+   months after the release of FFmpeg 2.5.
+
+   A lot of important work got in this time, so let's start talking about what
+   we like to brag the most about: features.
+
+   A lot of people will probably be happy to hear that we now have support for
+   NVENC — the Nvidia Video Encoder interface for H.264 encoding — thanks to
+   Timo Rothenpieler, with some little help from NVIDIA and Philip Langdale.
+
+   People in the broadcasting industry might also be interested in the first
+   steps of closed captions support with the introduction of a decoder by
+   Anshul Maheswhwari.
+
+   Regarding filters love, we improved and added many. We could talk about the
+   10-bit support in spp, but maybe it's more important to mention the addition
+   of colorlevels (yet another color handling filter), tblend (allowing you
+   to for example run a diff between successive frames of a video stream), or
+   eventually the dcshift audio filter.
+
+   There is also two other important filters landing in libavfilter: palettegen
+   and paletteuse, submitted by the Stupeflix company. These filters will be
+   very useful in case you are looking for creating high quality GIF, a format
+   that still bravely fights annihilation in 2015.
+
+   There are many other features, but let's follow-up on one big cleanup
+   achievement: the libmpcodecs (MPlayer filters) wrapper is finally dead. The
+   last remaining filters (softpulldown/repeatfields, eq*, and various
+   postprocessing filters) were ported by Arwa Arif (OPW student) and Paul B
+   Mahol.
+
+   Concerning API changes, not much things to mention. Though, the introduction
+   of devices inputs and outputs listing by Lukasz Marek is a notable addition
+   (try ffmpeg -sources or ffmpeg -sinks for an example of the usage). As
+   usual, see doc/APIchanges for more information.
+
+   Now let's talk about optimizations. Ronald S. Bultje made the VP9 decoder
+   usable on x86 32-bit systems and pre-ssse3 CPUs like Phenom (even dual core
+   Athlons can play 1080p 30fps VP9 content now), so we now secretly hope for
+   Google and Mozilla to use ffvp9 instead of libvpx.
+
+   But VP9 is not the center of attention anymore, and HEVC/H.265 is also
+   getting many improvements, which includes optimizations, both in C and x86
+   ASM, mainly from James Almer, Christophe Gisquet and Pierre-Edouard Lepere.
+
+   Even though we had many x86 contributions, it is not the only architecture
+   getting some love, with Seppo Tomperi adding ARM NEON optimizations to the
+   HEVC stack, and James Cowgill adding MIPS64 assembly for all kind of audio
+   processing code in libavcodec.
+
+   And finally, Michael Niedermayer is still fixing many bugs, dealing with
+   most of the boring work such as making releases, applying tons of
+   contributors patches, and daily merging the changes from the Libav project.
+
+   A more complete Changelog is available at the root of the project, and the
+   complete Git history on http://source.ffmpeg.org.
+
+   We hope you will like this release as much as we enjoyed working on it, and
+   as usual, if you have any question about it, or any FFmpeg related topic,
+   feel free to join us on the #ffmpeg IRC channel (on irc.freenode.net) or ask
+   on the mailing-lists.

arch.mak

@@ -1,16 +1,14 @@
 OBJS-$(HAVE_ARMV5TE) += $(ARMV5TE-OBJS) $(ARMV5TE-OBJS-yes)
 OBJS-$(HAVE_ARMV6)   += $(ARMV6-OBJS)   $(ARMV6-OBJS-yes)
+OBJS-$(HAVE_ARMV8)   += $(ARMV8-OBJS)   $(ARMV8-OBJS-yes)
 OBJS-$(HAVE_VFP)     += $(VFP-OBJS)     $(VFP-OBJS-yes)
 OBJS-$(HAVE_NEON)    += $(NEON-OBJS)    $(NEON-OBJS-yes)
 
 OBJS-$(HAVE_MIPSFPU)   += $(MIPSFPU-OBJS)    $(MIPSFPU-OBJS-yes)
-OBJS-$(HAVE_MIPS32R2)  += $(MIPS32R2-OBJS)   $(MIPS32R2-OBJS-yes)
 OBJS-$(HAVE_MIPSDSPR1) += $(MIPSDSPR1-OBJS)  $(MIPSDSPR1-OBJS-yes)
 OBJS-$(HAVE_MIPSDSPR2) += $(MIPSDSPR2-OBJS)  $(MIPSDSPR2-OBJS-yes)
 
 OBJS-$(HAVE_ALTIVEC) += $(ALTIVEC-OBJS) $(ALTIVEC-OBJS-yes)
 
-OBJS-$(HAVE_VIS)     += $(VIS-OBJS)     $(VIS-OBJS-yes)
-
 OBJS-$(HAVE_MMX)     += $(MMX-OBJS)     $(MMX-OBJS-yes)
 OBJS-$(HAVE_YASM)    += $(YASM-OBJS)    $(YASM-OBJS-yes)

cmdutils.c

@@ -66,6 +66,7 @@ AVDictionary *swr_opts;
 AVDictionary *format_opts, *codec_opts, *resample_opts;
 
 static FILE *report_file;
+static int report_file_level = AV_LOG_DEBUG;
 int hide_banner = 0;
 
 void init_opts(void)
@@ -104,8 +105,10 @@ static void log_callback_report(void *ptr, int level, const char *fmt, va_list v
     av_log_default_callback(ptr, level, fmt, vl);
     av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
     va_end(vl2);
-    fputs(line, report_file);
-    fflush(report_file);
+    if (report_file_level >= level) {
+        fputs(line, report_file);
+        fflush(report_file);
+    }
 }
 
 static void (*program_exit)(int ret);
@@ -163,7 +166,7 @@ void show_help_options(const OptionDef *options, const char *msg, int req_flags,
     int first;
 
     first = 1;
-    for (po = options; po->name != NULL; po++) {
+    for (po = options; po->name; po++) {
         char buf[64];
 
         if (((po->flags & req_flags) != req_flags) ||
@@ -202,7 +205,7 @@ static const OptionDef *find_option(const OptionDef *po, const char *name)
     const char *p = strchr(name, ':');
     int len = p ? p - name : strlen(name);
 
-    while (po->name != NULL) {
+    while (po->name) {
         if (!strncmp(name, po->name, len) && strlen(po->name) == len)
             break;
         po++;
@@ -251,7 +254,7 @@ static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
 
     win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
     argstr_flat     = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
-    if (win32_argv_utf8 == NULL) {
+    if (!win32_argv_utf8) {
         LocalFree(argv_w);
         return;
     }
@@ -287,10 +290,14 @@ static int write_option(void *optctx, const OptionDef *po, const char *opt,
     if (po->flags & OPT_SPEC) {
         SpecifierOpt **so = dst;
         char *p = strchr(opt, ':');
+        char *str;
 
         dstcount = (int *)(so + 1);
         *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
-        (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
+        str = av_strdup(p ? p + 1 : "");
+        if (!str)
+            return AVERROR(ENOMEM);
+        (*so)[*dstcount - 1].specifier = str;
         dst = &(*so)[*dstcount - 1].u;
     }
 
@@ -298,6 +305,8 @@ static int write_option(void *optctx, const OptionDef *po, const char *opt,
         char *str;
         str = av_strdup(arg);
         av_freep(dst);
+        if (!str)
+            return AVERROR(ENOMEM);
         *(char **)dst = str;
     } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
         *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
@@ -441,7 +450,7 @@ int locate_option(int argc, char **argv, const OptionDef *options,
              (po->name && !strcmp(optname, po->name)))
             return i;
 
-        if (po->flags & HAS_ARG)
+        if (!po->name || po->flags & HAS_ARG)
             i++;
     }
     return 0;
@@ -552,6 +561,11 @@ int opt_default(void *optctx, const char *opt, const char *arg)
         }
         consumed = 1;
     }
+#else
+    if (!consumed && !strcmp(opt, "sws_flags")) {
+        av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
+        consumed = 1;
+    }
 #endif
 #if CONFIG_SWRESAMPLE
     swr_class = swr_get_class();
@@ -662,7 +676,7 @@ static void init_parse_context(OptionParseContext *octx,
     memset(octx, 0, sizeof(*octx));
 
     octx->nb_groups = nb_groups;
-    octx->groups    = av_mallocz(sizeof(*octx->groups) * octx->nb_groups);
+    octx->groups    = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
     if (!octx->groups)
         exit_program(1);
 
@@ -834,10 +848,17 @@ int opt_loglevel(void *optctx, const char *opt, const char *arg)
     };
     char *tail;
     int level;
+    int flags;
     int i;
 
+    flags = av_log_get_flags();
     tail = strstr(arg, "repeat");
-    av_log_set_flags(tail ? 0 : AV_LOG_SKIP_REPEATED);
+    if (tail)
+        flags &= ~AV_LOG_SKIP_REPEATED;
+    else
+        flags |= AV_LOG_SKIP_REPEATED;
+
+    av_log_set_flags(flags);
     if (tail == arg)
         arg += 6 + (arg[6]=='+');
     if(tail && !*arg)
@@ -919,6 +940,13 @@ static int init_report(const char *env)
             av_free(filename_template);
             filename_template = val;
             val = NULL;
+        } else if (!strcmp(key, "level")) {
+            char *tail;
+            report_file_level = strtol(val, &tail, 10);
+            if (*tail) {
+                av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
+                exit_program(1);
+            }
         } else {
             av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
         }
@@ -937,9 +965,10 @@ static int init_report(const char *env)
 
     report_file = fopen(filename.str, "w");
     if (!report_file) {
+        int ret = AVERROR(errno);
         av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
                filename.str, strerror(errno));
-        return AVERROR(errno);
+        return ret;
     }
     av_log_set_callback(log_callback_report);
     av_log(NULL, AV_LOG_INFO,
@@ -1052,8 +1081,7 @@ static void print_program_info(int flags, int level)
         av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
                program_birth_year, CONFIG_THIS_YEAR);
     av_log(NULL, level, "\n");
-    av_log(NULL, level, "%sbuilt on %s %s with %s\n",
-           indent, __DATE__, __TIME__, CC_IDENT);
+    av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
 
     av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
 }
@@ -1098,7 +1126,7 @@ void show_banner(int argc, char **argv, const OptionDef *options)
 int show_version(void *optctx, const char *opt, const char *arg)
 {
     av_log_set_callback(log_callback_help);
-    print_program_info (0           , AV_LOG_INFO);
+    print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
     print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
 
     return 0;
@@ -1186,16 +1214,24 @@ int show_license(void *optctx, const char *opt, const char *arg)
     return 0;
 }
 
-int show_formats(void *optctx, const char *opt, const char *arg)
+static int is_device(const AVClass *avclass)
+{
+    if (!avclass)
+        return 0;
+    return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
+}
+
+static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only)
 {
     AVInputFormat *ifmt  = NULL;
     AVOutputFormat *ofmt = NULL;
     const char *last_name;
+    int is_dev;
 
-    printf("File formats:\n"
+    printf("%s\n"
            " D. = Demuxing supported\n"
            " .E = Muxing supported\n"
-           " --\n");
+           " --\n", device_only ? "Devices:" : "File formats:");
     last_name = "000";
     for (;;) {
         int decode = 0;
@@ -1204,7 +1240,10 @@ int show_formats(void *optctx, const char *opt, const char *arg)
         const char *long_name = NULL;
 
         while ((ofmt = av_oformat_next(ofmt))) {
-            if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
+            is_dev = is_device(ofmt->priv_class);
+            if (!is_dev && device_only)
+                continue;
+            if ((!name || strcmp(ofmt->name, name) < 0) &&
                 strcmp(ofmt->name, last_name) > 0) {
                 name      = ofmt->name;
                 long_name = ofmt->long_name;
@@ -1212,7 +1251,10 @@ int show_formats(void *optctx, const char *opt, const char *arg)
             }
         }
         while ((ifmt = av_iformat_next(ifmt))) {
-            if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
+            is_dev = is_device(ifmt->priv_class);
+            if (!is_dev && device_only)
+                continue;
+            if ((!name || strcmp(ifmt->name, name) < 0) &&
                 strcmp(ifmt->name, last_name) > 0) {
                 name      = ifmt->name;
                 long_name = ifmt->long_name;
@@ -1221,7 +1263,7 @@ int show_formats(void *optctx, const char *opt, const char *arg)
             if (name && strcmp(ifmt->name, name) == 0)
                 decode = 1;
         }
-        if (name == NULL)
+        if (!name)
             break;
         last_name = name;
 
@@ -1234,6 +1276,16 @@ int show_formats(void *optctx, const char *opt, const char *arg)
     return 0;
 }
 
+int show_formats(void *optctx, const char *opt, const char *arg)
+{
+    return show_formats_devices(optctx, opt, arg, 0);
+}
+
+int show_devices(void *optctx, const char *opt, const char *arg)
+{
+    return show_formats_devices(optctx, opt, arg, 1);
+}
+
 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
     if (codec->field) {                                                      \
         const type *p = codec->field;                                        \
@@ -1378,6 +1430,9 @@ int show_codecs(void *optctx, const char *opt, const char *arg)
         const AVCodecDescriptor *desc = codecs[i];
         const AVCodec *codec = NULL;
 
+        if (strstr(desc->name, "_deprecated"))
+            continue;
+
         printf(" ");
         printf(avcodec_find_decoder(desc->id) ? "D" : ".");
         printf(avcodec_find_encoder(desc->id) ? "E" : ".");
@@ -1489,7 +1544,8 @@ int show_protocols(void *optctx, const char *opt, const char *arg)
 
 int show_filters(void *optctx, const char *opt, const char *arg)
 {
-    const AVFilter av_unused(*filter) = NULL;
+#if CONFIG_AVFILTER
+    const AVFilter *filter = NULL;
     char descr[64], *descr_cur;
     int i, j;
     const AVFilterPad *pad;
@@ -1502,7 +1558,6 @@ int show_filters(void *optctx, const char *opt, const char *arg)
            "  V = Video input/output\n"
            "  N = Dynamic number and/or type of input/output\n"
            "  | = Source or sink filter\n");
-#if CONFIG_AVFILTER
     while ((filter = avfilter_next(filter))) {
         descr_cur = descr;
         for (i = 0; i < 2; i++) {
@@ -1527,6 +1582,8 @@ int show_filters(void *optctx, const char *opt, const char *arg)
                filter->process_command                        ? 'C' : '.',
                filter->name, descr, filter->description);
     }
+#else
+    printf("No filters available: libavfilter disabled\n");
 #endif
     return 0;
 }
@@ -1585,19 +1642,19 @@ int show_layouts(void *optctx, const char *opt, const char *arg)
     const char *name, *descr;
 
     printf("Individual channels:\n"
-           "NAME        DESCRIPTION\n");
+           "NAME           DESCRIPTION\n");
     for (i = 0; i < 63; i++) {
         name = av_get_channel_name((uint64_t)1 << i);
         if (!name)
             continue;
         descr = av_get_channel_description((uint64_t)1 << i);
-        printf("%-12s%s\n", name, descr);
+        printf("%-14s %s\n", name, descr);
     }
     printf("\nStandard channel layouts:\n"
-           "NAME        DECOMPOSITION\n");
+           "NAME           DECOMPOSITION\n");
     for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
         if (name) {
-            printf("%-12s", name);
+            printf("%-14s ", name);
             for (j = 1; j; j <<= 1)
                 if ((layout & j))
                     printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
@@ -1764,6 +1821,8 @@ int show_help(void *optctx, const char *opt, const char *arg)
     av_log_set_callback(log_callback_help);
 
     topic = av_strdup(arg ? arg : "");
+    if (!topic)
+        return AVERROR(ENOMEM);
     par = strchr(topic, '=');
     if (par)
         *par++ = 0;
@@ -1803,35 +1862,48 @@ int read_yesno(void)
 
 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
 {
-    int ret;
+    int64_t ret;
     FILE *f = av_fopen_utf8(filename, "rb");
 
     if (!f) {
+        ret = AVERROR(errno);
         av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
                strerror(errno));
-        return AVERROR(errno);
+        return ret;
     }
-    fseek(f, 0, SEEK_END);
-    *size = ftell(f);
-    fseek(f, 0, SEEK_SET);
-    if (*size == (size_t)-1) {
-        av_log(NULL, AV_LOG_ERROR, "IO error: %s\n", strerror(errno));
-        fclose(f);
-        return AVERROR(errno);
+
+    ret = fseek(f, 0, SEEK_END);
+    if (ret == -1) {
+        ret = AVERROR(errno);
+        goto out;
     }
+
+    ret = ftell(f);
+    if (ret < 0) {
+        ret = AVERROR(errno);
+        goto out;
+    }
+    *size = ret;
+
+    ret = fseek(f, 0, SEEK_SET);
+    if (ret == -1) {
+        ret = AVERROR(errno);
+        goto out;
+    }
+
     *bufptr = av_malloc(*size + 1);
     if (!*bufptr) {
         av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
-        fclose(f);
-        return AVERROR(ENOMEM);
+        ret = AVERROR(ENOMEM);
+        goto out;
     }
     ret = fread(*bufptr, 1, *size, f);
     if (ret < *size) {
         av_free(*bufptr);
         if (ferror(f)) {
+            ret = AVERROR(errno);
             av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
                    filename, strerror(errno));
-            ret = AVERROR(errno);
         } else
             ret = AVERROR_EOF;
     } else {
@@ -1839,6 +1911,9 @@ int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
         (*bufptr)[(*size)++] = '\0';
     }
 
+out:
+    if (ret < 0)
+        av_log(NULL, AV_LOG_ERROR, "IO error: %s\n", av_err2str(ret));
     fclose(f);
     return ret;
 }
@@ -1938,11 +2013,12 @@ AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
             switch (check_stream_specifier(s, st, p + 1)) {
             case  1: *p = 0; break;
             case  0:         continue;
-            default:         return NULL;
+            default:         exit_program(1);
             }
 
         if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
-            (codec && codec->priv_class &&
+            !codec ||
+            (codec->priv_class &&
              av_opt_find(&codec->priv_class, t->key, NULL, flags,
                          AV_OPT_SEARCH_FAKE_OBJ)))
             av_dict_set(&ret, t->key, t->value, 0);
@@ -1965,7 +2041,7 @@ AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
 
     if (!s->nb_streams)
         return NULL;
-    opts = av_mallocz(s->nb_streams * sizeof(*opts));
+    opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
     if (!opts) {
         av_log(NULL, AV_LOG_ERROR,
                "Could not alloc memory for stream options.\n");
@@ -1984,7 +2060,7 @@ void *grow_array(void *array, int elem_size, int *size, int new_size)
         exit_program(1);
     }
     if (*size < new_size) {
-        uint8_t *tmp = av_realloc(array, new_size*elem_size);
+        uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
         if (!tmp) {
             av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
             exit_program(1);
@@ -1995,3 +2071,161 @@ void *grow_array(void *array, int elem_size, int *size, int new_size)
     }
     return array;
 }
+
+#if CONFIG_AVDEVICE
+static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
+{
+    int ret, i;
+    AVDeviceInfoList *device_list = NULL;
+
+    if (!fmt || !fmt->priv_class  || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
+        return AVERROR(EINVAL);
+
+    printf("Audo-detected sources for %s:\n", fmt->name);
+    if (!fmt->get_device_list) {
+        ret = AVERROR(ENOSYS);
+        printf("Cannot list sources. Not implemented.\n");
+        goto fail;
+    }
+
+    if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
+        printf("Cannot list sources.\n");
+        goto fail;
+    }
+
+    for (i = 0; i < device_list->nb_devices; i++) {
+        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
+               device_list->devices[i]->device_name, device_list->devices[i]->device_description);
+    }
+
+  fail:
+    avdevice_free_list_devices(&device_list);
+    return ret;
+}
+
+static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
+{
+    int ret, i;
+    AVDeviceInfoList *device_list = NULL;
+
+    if (!fmt || !fmt->priv_class  || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
+        return AVERROR(EINVAL);
+
+    printf("Audo-detected sinks for %s:\n", fmt->name);
+    if (!fmt->get_device_list) {
+        ret = AVERROR(ENOSYS);
+        printf("Cannot list sinks. Not implemented.\n");
+        goto fail;
+    }
+
+    if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
+        printf("Cannot list sinks.\n");
+        goto fail;
+    }
+
+    for (i = 0; i < device_list->nb_devices; i++) {
+        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
+               device_list->devices[i]->device_name, device_list->devices[i]->device_description);
+    }
+
+  fail:
+    avdevice_free_list_devices(&device_list);
+    return ret;
+}
+
+static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
+{
+    int ret;
+    if (arg) {
+        char *opts_str = NULL;
+        av_assert0(dev && opts);
+        *dev = av_strdup(arg);
+        if (!*dev)
+            return AVERROR(ENOMEM);
+        if ((opts_str = strchr(*dev, ','))) {
+            *(opts_str++) = '\0';
+            if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
+                av_freep(dev);
+                return ret;
+            }
+        }
+    } else
+        printf("\nDevice name is not provided.\n"
+                "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
+    return 0;
+}
+
+int show_sources(void *optctx, const char *opt, const char *arg)
+{
+    AVInputFormat *fmt = NULL;
+    char *dev = NULL;
+    AVDictionary *opts = NULL;
+    int ret = 0;
+    int error_level = av_log_get_level();
+
+    av_log_set_level(AV_LOG_ERROR);
+
+    if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
+        goto fail;
+
+    do {
+        fmt = av_input_audio_device_next(fmt);
+        if (fmt) {
+            if (!strcmp(fmt->name, "lavfi"))
+                continue; //it's pointless to probe lavfi
+            if (dev && !av_match_name(dev, fmt->name))
+                continue;
+            print_device_sources(fmt, opts);
+        }
+    } while (fmt);
+    do {
+        fmt = av_input_video_device_next(fmt);
+        if (fmt) {
+            if (dev && !av_match_name(dev, fmt->name))
+                continue;
+            print_device_sources(fmt, opts);
+        }
+    } while (fmt);
+  fail:
+    av_dict_free(&opts);
+    av_free(dev);
+    av_log_set_level(error_level);
+    return ret;
+}
+
+int show_sinks(void *optctx, const char *opt, const char *arg)
+{
+    AVOutputFormat *fmt = NULL;
+    char *dev = NULL;
+    AVDictionary *opts = NULL;
+    int ret = 0;
+    int error_level = av_log_get_level();
+
+    av_log_set_level(AV_LOG_ERROR);
+
+    if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
+        goto fail;
+
+    do {
+        fmt = av_output_audio_device_next(fmt);
+        if (fmt) {
+            if (dev && !av_match_name(dev, fmt->name))
+                continue;
+            print_device_sinks(fmt, opts);
+        }
+    } while (fmt);
+    do {
+        fmt = av_output_video_device_next(fmt);
+        if (fmt) {
+            if (dev && !av_match_name(dev, fmt->name))
+                continue;
+            print_device_sinks(fmt, opts);
+        }
+    } while (fmt);
+  fail:
+    av_dict_free(&opts);
+    av_free(dev);
+    av_log_set_level(error_level);
+    return ret;
+}
+#endif

cmdutils.h

@@ -24,12 +24,13 @@
 
 #include <stdint.h>
 
+#include "config.h"
 #include "libavcodec/avcodec.h"
 #include "libavfilter/avfilter.h"
 #include "libavformat/avformat.h"
 #include "libswscale/swscale.h"
 
-#ifdef __MINGW32__
+#ifdef _WIN32
 #undef main /* We don't want SDL to override our main() */
 #endif
 
@@ -58,7 +59,7 @@ void register_exit(void (*cb)(int ret));
 /**
  * Wraps exit with a program-specific cleanup routine.
  */
-void exit_program(int ret);
+void exit_program(int ret) av_noreturn;
 
 /**
  * Initialize the cmdutils option system, in particular
@@ -430,11 +431,32 @@ int show_license(void *optctx, const char *opt, const char *arg);
 
 /**
  * Print a listing containing all the formats supported by the
- * program.
+ * program (including devices).
  * This option processing function does not utilize the arguments.
  */
 int show_formats(void *optctx, const char *opt, const char *arg);
 
+/**
+ * Print a listing containing all the devices supported by the
+ * program.
+ * This option processing function does not utilize the arguments.
+ */
+int show_devices(void *optctx, const char *opt, const char *arg);
+
+#if CONFIG_AVDEVICE
+/**
+ * Print a listing containing audodetected sinks of the output device.
+ * Device name with options may be passed as an argument to limit results.
+ */
+int show_sinks(void *optctx, const char *opt, const char *arg);
+
+/**
+ * Print a listing containing audodetected sources of the input device.
+ * Device name with options may be passed as an argument to limit results.
+ */
+int show_sources(void *optctx, const char *opt, const char *arg);
+#endif
+
 /**
  * Print a listing containing all the codecs supported by the
  * program.

cmdutils_common_opts.h

@@ -6,6 +6,7 @@
     { "version"    , OPT_EXIT, {.func_arg = show_version},      "show version" },
     { "buildconf"  , OPT_EXIT, {.func_arg = show_buildconf},    "show build configuration" },
     { "formats"    , OPT_EXIT, {.func_arg = show_formats  },    "show available formats" },
+    { "devices"    , OPT_EXIT, {.func_arg = show_devices  },    "show available devices" },
     { "codecs"     , OPT_EXIT, {.func_arg = show_codecs   },    "show available codecs" },
     { "decoders"   , OPT_EXIT, {.func_arg = show_decoders },    "show available decoders" },
     { "encoders"   , OPT_EXIT, {.func_arg = show_encoders },    "show available encoders" },
@@ -26,3 +27,9 @@
     { "opencl_bench", OPT_EXIT, {.func_arg = opt_opencl_bench}, "run benchmark on all OpenCL devices and show results" },
     { "opencl_options", HAS_ARG, {.func_arg = opt_opencl},      "set OpenCL environment options" },
 #endif
+#if CONFIG_AVDEVICE
+    { "sources"    , OPT_EXIT | HAS_ARG, { .func_arg = show_sources },
+      "list sources of the input device", "device" },
+    { "sinks"      , OPT_EXIT | HAS_ARG, { .func_arg = show_sinks },
+      "list sinks of the output device", "device" },
+#endif

cmdutils_opencl.c

@@ -181,12 +181,12 @@ static int64_t run_opencl_bench(AVOpenCLExternalEnv *ext_opencl_env)
     OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_int), &width);
     OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_int), &height);
 
-    start = av_gettime();
+    start = av_gettime_relative();
     for (i = 0; i < OPENCL_NB_ITER; i++)
         OCLCHECK(clEnqueueNDRangeKernel, ext_opencl_env->command_queue, kernel, 2, NULL,
                  global_work_size_2d, local_work_size_2d, 0, NULL, NULL);
     clFinish(ext_opencl_env->command_queue);
-    ret = (av_gettime() - start)/OPENCL_NB_ITER;
+    ret = (av_gettime_relative() - start)/OPENCL_NB_ITER;
 end:
     if (kernel)
         clReleaseKernel(kernel);
@@ -224,7 +224,7 @@ int opt_opencl_bench(void *optctx, const char *opt, const char *arg)
         av_log(NULL, AV_LOG_ERROR, "No OpenCL device detected!\n");
         return AVERROR(EINVAL);
     }
-    if (!(devices = av_malloc(sizeof(OpenCLDeviceBenchmark) * nb_devices))) {
+    if (!(devices = av_malloc_array(nb_devices, sizeof(OpenCLDeviceBenchmark)))) {
         av_log(NULL, AV_LOG_ERROR, "Could not allocate buffer\n");
         return AVERROR(ENOMEM);
     }

common.mak

@@ -5,6 +5,14 @@
 # first so "all" becomes default target
 all: all-yes
 
+DEFAULT_YASMD=.dbg
+
+ifeq (1, DBG)
+YASMD=$(DEFAULT_YASMD)
+else
+YASMD=
+endif
+
 ifndef SUBDIR
 
 ifndef V
@@ -51,6 +59,9 @@ COMPILE_HOSTC = $(call COMPILE,HOSTCC)
 %.o: %.cpp
 	$(COMPILE_CXX)
 
+%.o: %.m
+	$(COMPILE_C)
+
 %.s: %.c
 	$(CC) $(CPPFLAGS) $(CFLAGS) -S -o $@ $<
 
@@ -90,7 +101,7 @@ include $(SRC_PATH)/arch.mak
 
 OBJS      += $(OBJS-yes)
 SLIBOBJS  += $(SLIBOBJS-yes)
-FFLIBS    := $(FFLIBS-yes) $(FFLIBS)
+FFLIBS    := $($(NAME)_FFLIBS) $(FFLIBS-yes) $(FFLIBS)
 TESTPROGS += $(TESTPROGS-yes)
 
 LDLIBS       = $(FFLIBS:%=%$(BUILDSUF))
@@ -135,17 +146,17 @@ $(TOOLOBJS): | tools
 
 OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(SLIBOBJS) $(TESTOBJS))
 
-CLEANSUFFIXES     = *.d *.o *~ *.h.c *.map *.ver *.ho *.gcno *.gcda
+CLEANSUFFIXES     = *.d *.o *~ *.h.c *.map *.ver *.ho *.gcno *.gcda *$(DEFAULT_YASMD).asm
 DISTCLEANSUFFIXES = *.pc
 LIBSUFFIXES       = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a
 
 define RULES
 clean::
-	$(RM) $(OBJS) $(OBJS:.o=.d)
+	$(RM) $(OBJS) $(OBJS:.o=.d) $(OBJS:.o=$(DEFAULT_YASMD).d)
 	$(RM) $(HOSTPROGS)
 	$(RM) $(TOOLS)
 endef
 
 $(eval $(RULES))
 
--include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SLIBOBJS:.o=.d))
+-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SLIBOBJS:.o=.d)) $(OBJS:.o=$(DEFAULT_YASMD).d)

compat/avisynth/avisynth_c.h

@@ -13,7 +13,8 @@
 //
 // You should have received a copy of the GNU General Public License
 // along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+// MA 02110-1301 USA, or visit
 // http://www.gnu.org/copyleft/gpl.html .
 //
 // As a special exception, I give you permission to link to the
@@ -804,7 +805,7 @@ struct AVS_Library {
 
 AVSC_INLINE AVS_Library * avs_load_library() {
   AVS_Library *library = (AVS_Library *)malloc(sizeof(AVS_Library));
-  if (library == NULL)
+  if (!library)
     return NULL;
   library->handle = LoadLibrary("avisynth");
   if (library->handle == NULL)
@@ -869,7 +870,7 @@ fail:
 }
 
 AVSC_INLINE void avs_free_library(AVS_Library *library) {
-  if (library == NULL)
+  if (!library)
     return;
   FreeLibrary(library->handle);
   free(library);

compat/avisynth/avxsynth_c.h

@@ -13,7 +13,8 @@
 //
 // You should have received a copy of the GNU General Public License
 // along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+// MA 02110-1301 USA, or visit
 // http://www.gnu.org/copyleft/gpl.html .
 //
 // As a special exception, I give you permission to link to the
@@ -512,21 +513,21 @@ AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
 // only use these functions on am AVS_Value that does not already have
 // an active value.  Remember, treat AVS_Value as a fat pointer.
 AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
-        { AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
+        { AVS_Value v = {0}; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
 AVSC_INLINE AVS_Value avs_new_value_int(int v0)
-        { AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; }
+        { AVS_Value v = {0}; v.type = 'i'; v.d.integer = v0; return v; }
 AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
-        { AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
+        { AVS_Value v = {0}; v.type = 's'; v.d.string = v0; return v; }
 AVSC_INLINE AVS_Value avs_new_value_float(float v0)
-        { AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;}
+        { AVS_Value v = {0}; v.type = 'f'; v.d.floating_pt = v0; return v;}
 AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
-        { AVS_Value v; v.type = 'e'; v.d.string = v0; return v; }
+        { AVS_Value v = {0}; v.type = 'e'; v.d.string = v0; return v; }
 #ifndef AVSC_NO_DECLSPEC
 AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
-        { AVS_Value v; avs_set_to_clip(&v, v0); return v; }
+        { AVS_Value v = {0}; avs_set_to_clip(&v, v0); return v; }
 #endif
 AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
-        { AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
+        { AVS_Value v = {0}; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
 
 /////////////////////////////////////////////////////////////////////
 //

compat/avisynth/windowsPorts/windows2linux.h

@@ -52,8 +52,8 @@ namespace avxsynth {
 //
 // Functions
 //
-#define MAKEDWORD(a,b,c,d) ((a << 24) | (b << 16) | (c << 8) | (d))
-#define MAKEWORD(a,b) ((a << 8) | (b))
+#define MAKEDWORD(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
+#define MAKEWORD(a,b) (((a) << 8) | (b))
 
 #define lstrlen                             strlen
 #define lstrcpy                             strcpy

compat/float/float.h

@@ -0,0 +1,35 @@
+/*
+ * Work around broken floating point limits on some systems.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include_next <float.h>
+
+#ifdef FLT_MAX
+#undef  FLT_MAX
+#define FLT_MAX 3.40282346638528859812e+38F
+
+#undef  FLT_MIN
+#define FLT_MIN 1.17549435082228750797e-38F
+
+#undef  DBL_MAX
+#define DBL_MAX ((double)1.79769313486231570815e+308L)
+
+#undef  DBL_MIN
+#define DBL_MIN ((double)2.22507385850720138309e-308L)
+#endif

compat/float/limits.h

@@ -0,0 +1,22 @@
+/*
+ * Work around broken floating point limits on some systems.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include_next <limits.h>
+#include <float.h>

compat/getopt.c

@@ -54,7 +54,7 @@ static int getopt(int argc, char *argv[], char *opts)
         }
     }
     optopt = c = argv[optind][sp];
-    if (c == ':' || (cp = strchr(opts, c)) == NULL) {
+    if (c == ':' || !(cp = strchr(opts, c))) {
         fprintf(stderr, ": illegal option -- %c\n", c);
         if (argv[optind][++sp] == '\0') {
             optind++;

compat/w32pthreads.h

@@ -39,6 +39,7 @@
 #include <windows.h>
 #include <process.h>
 
+#include "libavutil/attributes.h"
 #include "libavutil/common.h"
 #include "libavutil/internal.h"
 #include "libavutil/mem.h"
@@ -54,36 +55,30 @@ typedef struct pthread_t {
  * not mutexes */
 typedef CRITICAL_SECTION pthread_mutex_t;
 
-/* This is the CONDITIONAL_VARIABLE typedef for using Window's native
- * conditional variables on kernels 6.0+.
- * MinGW does not currently have this typedef. */
-typedef struct pthread_cond_t {
-    void *ptr;
-} pthread_cond_t;
-
-/* function pointers to conditional variable API on windows 6.0+ kernels */
-#if _WIN32_WINNT < 0x0600
-static void (WINAPI *cond_broadcast)(pthread_cond_t *cond);
-static void (WINAPI *cond_init)(pthread_cond_t *cond);
-static void (WINAPI *cond_signal)(pthread_cond_t *cond);
-static BOOL (WINAPI *cond_wait)(pthread_cond_t *cond, pthread_mutex_t *mutex,
-                                DWORD milliseconds);
+/* This is the CONDITION_VARIABLE typedef for using Windows' native
+ * conditional variables on kernels 6.0+. */
+#if HAVE_CONDITION_VARIABLE_PTR
+typedef CONDITION_VARIABLE pthread_cond_t;
 #else
-#define cond_init      InitializeConditionVariable
-#define cond_broadcast WakeAllConditionVariable
-#define cond_signal    WakeConditionVariable
-#define cond_wait      SleepConditionVariableCS
+typedef struct pthread_cond_t {
+    void *Ptr;
+} pthread_cond_t;
 #endif
 
-static unsigned __stdcall attribute_align_arg win32thread_worker(void *arg)
+#if _WIN32_WINNT >= 0x0600
+#define InitializeCriticalSection(x) InitializeCriticalSectionEx(x, 0, 0)
+#define WaitForSingleObject(a, b) WaitForSingleObjectEx(a, b, FALSE)
+#endif
+
+static av_unused unsigned __stdcall attribute_align_arg win32thread_worker(void *arg)
 {
     pthread_t *h = arg;
     h->ret = h->func(h->arg);
     return 0;
 }
 
-static int pthread_create(pthread_t *thread, const void *unused_attr,
-                          void *(*start_routine)(void*), void *arg)
+static av_unused int pthread_create(pthread_t *thread, const void *unused_attr,
+                                    void *(*start_routine)(void*), void *arg)
 {
     thread->func   = start_routine;
     thread->arg    = arg;
@@ -92,7 +87,7 @@ static int pthread_create(pthread_t *thread, const void *unused_attr,
     return !thread->handle;
 }
 
-static void pthread_join(pthread_t thread, void **value_ptr)
+static av_unused void pthread_join(pthread_t thread, void **value_ptr)
 {
     DWORD ret = WaitForSingleObject(thread.handle, INFINITE);
     if (ret != WAIT_OBJECT_0)
@@ -123,6 +118,36 @@ static inline int pthread_mutex_unlock(pthread_mutex_t *m)
     return 0;
 }
 
+#if _WIN32_WINNT >= 0x0600
+static inline int pthread_cond_init(pthread_cond_t *cond, const void *unused_attr)
+{
+    InitializeConditionVariable(cond);
+    return 0;
+}
+
+/* native condition variables do not destroy */
+static inline void pthread_cond_destroy(pthread_cond_t *cond)
+{
+    return;
+}
+
+static inline void pthread_cond_broadcast(pthread_cond_t *cond)
+{
+    WakeAllConditionVariable(cond);
+}
+
+static inline int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
+{
+    SleepConditionVariableCS(cond, mutex, INFINITE);
+    return 0;
+}
+
+static inline void pthread_cond_signal(pthread_cond_t *cond)
+{
+    WakeConditionVariable(cond);
+}
+
+#else // _WIN32_WINNT < 0x0600
 /* for pre-Windows 6.0 platforms we need to define and use our own condition
  * variable and api */
 typedef struct  win32_cond_t {
@@ -134,33 +159,41 @@ typedef struct  win32_cond_t {
     volatile int is_broadcast;
 } win32_cond_t;
 
-static void pthread_cond_init(pthread_cond_t *cond, const void *unused_attr)
+/* function pointers to conditional variable API on windows 6.0+ kernels */
+static void (WINAPI *cond_broadcast)(pthread_cond_t *cond);
+static void (WINAPI *cond_init)(pthread_cond_t *cond);
+static void (WINAPI *cond_signal)(pthread_cond_t *cond);
+static BOOL (WINAPI *cond_wait)(pthread_cond_t *cond, pthread_mutex_t *mutex,
+                                DWORD milliseconds);
+
+static av_unused int pthread_cond_init(pthread_cond_t *cond, const void *unused_attr)
 {
     win32_cond_t *win32_cond = NULL;
     if (cond_init) {
         cond_init(cond);
-        return;
+        return 0;
     }
 
     /* non native condition variables */
     win32_cond = av_mallocz(sizeof(win32_cond_t));
     if (!win32_cond)
-        return;
-    cond->ptr = win32_cond;
+        return ENOMEM;
+    cond->Ptr = win32_cond;
     win32_cond->semaphore = CreateSemaphore(NULL, 0, 0x7fffffff, NULL);
     if (!win32_cond->semaphore)
-        return;
+        return ENOMEM;
     win32_cond->waiters_done = CreateEvent(NULL, TRUE, FALSE, NULL);
     if (!win32_cond->waiters_done)
-        return;
+        return ENOMEM;
 
     pthread_mutex_init(&win32_cond->mtx_waiter_count, NULL);
     pthread_mutex_init(&win32_cond->mtx_broadcast, NULL);
+    return 0;
 }
 
-static void pthread_cond_destroy(pthread_cond_t *cond)
+static av_unused void pthread_cond_destroy(pthread_cond_t *cond)
 {
-    win32_cond_t *win32_cond = cond->ptr;
+    win32_cond_t *win32_cond = cond->Ptr;
     /* native condition variables do not destroy */
     if (cond_init)
         return;
@@ -171,12 +204,12 @@ static void pthread_cond_destroy(pthread_cond_t *cond)
     pthread_mutex_destroy(&win32_cond->mtx_waiter_count);
     pthread_mutex_destroy(&win32_cond->mtx_broadcast);
     av_freep(&win32_cond);
-    cond->ptr = NULL;
+    cond->Ptr = NULL;
 }
 
-static void pthread_cond_broadcast(pthread_cond_t *cond)
+static av_unused void pthread_cond_broadcast(pthread_cond_t *cond)
 {
-    win32_cond_t *win32_cond = cond->ptr;
+    win32_cond_t *win32_cond = cond->Ptr;
     int have_waiter;
 
     if (cond_broadcast) {
@@ -205,9 +238,9 @@ static void pthread_cond_broadcast(pthread_cond_t *cond)
     pthread_mutex_unlock(&win32_cond->mtx_broadcast);
 }
 
-static int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
+static av_unused int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
 {
-    win32_cond_t *win32_cond = cond->ptr;
+    win32_cond_t *win32_cond = cond->Ptr;
     int last_waiter;
     if (cond_wait) {
         cond_wait(cond, mutex, INFINITE);
@@ -237,9 +270,9 @@ static int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
     return pthread_mutex_lock(mutex);
 }
 
-static void pthread_cond_signal(pthread_cond_t *cond)
+static av_unused void pthread_cond_signal(pthread_cond_t *cond)
 {
-    win32_cond_t *win32_cond = cond->ptr;
+    win32_cond_t *win32_cond = cond->Ptr;
     int have_waiter;
     if (cond_signal) {
         cond_signal(cond);
@@ -261,8 +294,9 @@ static void pthread_cond_signal(pthread_cond_t *cond)
 
     pthread_mutex_unlock(&win32_cond->mtx_broadcast);
 }
+#endif
 
-static void w32thread_init(void)
+static av_unused void w32thread_init(void)
 {
 #if _WIN32_WINNT < 0x0600
     HANDLE kernel_dll = GetModuleHandle(TEXT("kernel32.dll"));

doc/APIchanges

@@ -2,43 +2,442 @@ Never assume the API of libav* to be stable unless at least 1 month has passed
 since the last major version increase or the API was added.
 
 The last version increases were:
-libavcodec:    2013-03-xx
-libavdevice:   2013-03-xx
-libavfilter:   2013-12-xx
-libavformat:   2013-03-xx
-libavresample: 2012-10-05
-libpostproc:   2011-04-18
-libswresample: 2011-09-19
-libswscale:    2011-06-20
-libavutil:     2012-10-22
+libavcodec:    2014-08-09
+libavdevice:   2014-08-09
+libavfilter:   2014-08-09
+libavformat:   2014-08-09
+libavresample: 2014-08-09
+libpostproc:   2014-08-09
+libswresample: 2014-08-09
+libswscale:    2014-08-09
+libavutil:     2014-08-09
 
 
 API changes, most recent first:
 
-2014-xx-xx - xxxxxxx - lavu 53.05.0 - frame.h
+-------- 8< --------- FFmpeg 2.6 was cut here -------- 8< ---------
+
+2015-03-04 - cca4476 - lavf 56.25.100
+  Add avformat_flush()
+
+2015-03-03 - 81a9126 - lavf 56.24.100
+  Add avio_put_str16be()
+
+2015-02-19 - 560eb71 / 31d2039 - lavc 56.23.100 / 56.13.0
+  Add width, height, coded_width, coded_height and format to
+  AVCodecParserContext.
+
+2015-02-19 - e375511 / 5b1d9ce - lavu 54.19.100 / 54.9.0
+  Add AV_PIX_FMT_QSV for QSV hardware acceleration.
+
+2015-02-14 - ba22295 - lavc 56.21.102
+  Deprecate VIMA decoder.
+
+2015-01-27 - 62a82c6 / 728685f - lavc 56.21.100 / 56.12.0, lavu 54.18.100 / 54.8.0 - avcodec.h, frame.h
+  Add AV_PKT_DATA_AUDIO_SERVICE_TYPE and AV_FRAME_DATA_AUDIO_SERVICE_TYPE for
+  storing the audio service type as side data.
+
+2015-01-16 - a47c933 - lavf 56.19.100 - avformat.h
+  Add data_codec and data_codec_id for storing codec of data stream
+
+2015-01-11 - 007c33d - lavd 56.4.100 - avdevice.h
+  Add avdevice_list_input_sources().
+  Add avdevice_list_output_sinks().
+
+2014-12-25 - d7aaeea / c220a60 - lavc 56.19.100 / 56.10.0 - vdpau.h
+  Add av_vdpau_get_surface_parameters().
+
+2014-12-25 - ddb9a24 / 6c99c92 - lavc 56.18.100 / 56.9.0 - avcodec.h
+  Add AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH flag to av_vdpau_bind_context().
+
+2014-12-25 - d16079a / 57b6704 - lavc 56.17.100 / 56.8.0 - avcodec.h
+  Add AVCodecContext.sw_pix_fmt.
+
+2014-12-04 - 6e9ac02 - lavc 56.14.100 - dv_profile.h
+  Add av_dv_codec_profile2().
+
+-------- 8< --------- FFmpeg 2.5 was cut here -------- 8< ---------
+
+2014-11-21 - ab922f9 - lavu 54.15.100 - dict.h
+   Add av_dict_get_string().
+
+2014-11-18 - a54a51c - lavu 54.14.100 - float_dsp.h
+  Add avpriv_float_dsp_alloc().
+
+2014-11-16 - 6690d4c3 - lavf 56.13.100 - avformat.h
+  Add AVStream.recommended_encoder_configuration with accessors.
+
+2014-11-16 - bee5844d - lavu 54.13.100 - opt.h
+  Add av_opt_serialize().
+
+2014-11-16 - eec69332 - lavu 54.12.100 - opt.h
+  Add av_opt_is_set_to_default().
+
+2014-11-06 - 44fa267 / 5e80fb7 - lavc 56.11.100 / 56.6.0 - vorbis_parser.h
+  Add a public API for parsing vorbis packets.
+
+2014-10-15 - 17085a0 / 7ea1b34 - lavc 56.7.100 / 56.5.0 - avcodec.h
+  Replace AVCodecContext.time_base used for decoding
+  with AVCodecContext.framerate.
+
+2014-10-15 - 51c810e / d565fef1 - lavc 56.6.100 / 56.4.0 - avcodec.h
+  Add AV_HWACCEL_FLAG_IGNORE_LEVEL flag to av_vdpau_bind_context().
+
+2014-10-13 - da21895 / 2df0c32e - lavc 56.5.100 / 56.3.0 - avcodec.h
+  Add AVCodecContext.initial_padding. Deprecate the use of AVCodecContext.delay
+  for audio encoding.
+
+2014-10-08 - bb44f7d / 5a419b2 - lavu 54.10.100 / 54.4.0 - pixdesc.h
+  Add API to return the name of frame and context color properties.
+
+2014-10-06 - a61899a / e3e158e - lavc 56.3.100 / 56.2.0 - vdpau.h
+  Add av_vdpau_bind_context(). This function should now be used for creating
+  (or resetting) a AVVDPAUContext instead of av_vdpau_alloc_context().
+
+2014-10-02 - cdd6f05 - lavc 56.2.100 - avcodec.h
+2014-10-02 - cdd6f05 - lavu 54.9.100 - frame.h
+  Add AV_FRAME_DATA_SKIP_SAMPLES. Add lavc CODEC_FLAG2_SKIP_MANUAL and
+  AVOption "skip_manual", which makes lavc export skip information via
+  AV_FRAME_DATA_SKIP_SAMPLES AVFrame side data, instead of skipping and
+  discarding samples automatically.
+
+2014-10-02 - 0d92b0d - lavu 54.8.100 - avstring.h
+  Add av_match_list()
+
+2014-09-24 - ac68295 - libpostproc 53.1.100
+  Add visualization support
+
+2014-09-19 - 6edd6a4 - lavc 56.1.101 - dv_profile.h
+  deprecate avpriv_dv_frame_profile2(), which was made public by accident.
+
+
+-------- 8< --------- FFmpeg 2.4 was cut here -------- 8< ---------
+
+2014-08-25 - 215db29 / b263f8f - lavf 56.3.100 / 56.3.0 - avformat.h
+  Add AVFormatContext.max_ts_probe.
+
+2014-08-28 - f30a815 / 9301486 - lavc 56.1.100 / 56.1.0 - avcodec.h
+  Add AV_PKT_DATA_STEREO3D to export container-level stereo3d information.
+
+2014-08-23 - 8fc9bd0 - lavu 54.7.100 - dict.h
+  AV_DICT_DONT_STRDUP_KEY and AV_DICT_DONT_STRDUP_VAL arguments are now
+  freed even on error. This is consistent with the behaviour all users
+  of it we could find expect.
+
+2014-08-21 - 980a5b0 - lavu 54.6.100 - frame.h motion_vector.h
+  Add AV_FRAME_DATA_MOTION_VECTORS side data and AVMotionVector structure
+
+2014-08-16 - b7d5e01 - lswr 1.1.100 - swresample.h
+  Add AVFrame based API
+
+2014-08-16 - c2829dc - lavu 54.4.100 - dict.h
+  Add av_dict_set_int helper function.
+
+2014-08-13 - c8571c6 / 8ddc326 - lavu 54.3.100 / 54.3.0 - mem.h
+  Add av_strndup().
+
+2014-08-13 - 2ba4577 / a8c104a - lavu 54.2.100 / 54.2.0 - opt.h
+  Add av_opt_get_dict_val/set_dict_val with AV_OPT_TYPE_DICT to support
+  dictionary types being set as options.
+
+2014-08-13 - afbd4b8 - lavf 56.01.0 - avformat.h
+  Add AVFormatContext.event_flags and AVStream.event_flags for signaling to
+  the user when events happen in the file/stream.
+
+2014-08-10 - 78eaaa8 / fb1ddcd - lavr 2.1.0 - avresample.h
+  Add avresample_convert_frame() and avresample_config().
+
+2014-08-10 - 78eaaa8 / fb1ddcd - lavu 54.1.100 / 54.1.0 - error.h
+  Add AVERROR_INPUT_CHANGED and AVERROR_OUTPUT_CHANGED.
+
+2014-08-08 - 3841f2a / d35b94f - lavc 55.73.102 / 55.57.4 - avcodec.h
+  Deprecate FF_IDCT_XVIDMMX define and xvidmmx idct option.
+  Replaced by FF_IDCT_XVID and xvid respectively.
+
+2014-08-08 - 5c3c671 - lavf 55.53.100 - avio.h
+  Add avio_feof() and deprecate url_feof().
+
+2014-08-07 - bb78903 - lsws 2.1.3 - swscale.h
+  sws_getContext is not going to be removed in the future.
+
+2014-08-07 - a561662 / ad1ee5f - lavc 55.73.101 / 55.57.3 - avcodec.h
+  reordered_opaque is not going to be removed in the future.
+
+2014-08-02 - 28a2107 - lavu 52.98.100 - pixelutils.h
+  Add pixelutils API with SAD functions
+
+2014-08-04 - 6017c98 / e9abafc - lavu 52.97.100 / 53.22.0 - pixfmt.h
+  Add AV_PIX_FMT_YA16 pixel format for 16 bit packed gray with alpha.
+
+2014-08-04 - 4c8bc6f / e96c3b8 - lavu 52.96.101 / 53.21.1 - avstring.h
+  Rename AV_PIX_FMT_Y400A to AV_PIX_FMT_YA8 to better identify the format.
+  An alias pixel format and color space name are provided for compatibility.
+
+2014-08-04 - 073c074 / d2962e9 - lavu 52.96.100 / 53.21.0 - pixdesc.h
+  Support name aliases for pixel formats.
+
+2014-08-03 - 71d008e / 1ef9e83 - lavc 55.72.101 / 55.57.2 - avcodec.h
+2014-08-03 - 71d008e / 1ef9e83 - lavu 52.95.100 / 53.20.0 - frame.h
+  Deprecate AVCodecContext.dtg_active_format and use side-data instead.
+
+2014-08-03 - e680c73 - lavc 55.72.100 - avcodec.h
+  Add get_pixels() to AVDCT
+
+2014-08-03 - 9400603 / 9f17685 - lavc 55.71.101 / 55.57.1 - avcodec.h
+  Deprecate unused FF_IDCT_IPP define and ipp avcodec option.
+  Deprecate unused FF_DEBUG_PTS define and pts avcodec option.
+  Deprecate unused FF_CODER_TYPE_DEFLATE define and deflate avcodec option.
+  Deprecate unused FF_DCT_INT define and int avcodec option.
+  Deprecate unused avcodec option scenechange_factor.
+
+2014-07-30 - ba3e331 - lavu 52.94.100 - frame.h
+  Add av_frame_side_data_name()
+
+2014-07-29 - 80a3a66 / 3a19405 - lavf 56.01.100 / 56.01.0 - avformat.h
+  Add mime_type field to AVProbeData, which now MUST be initialized in
+  order to avoid uninitialized reads of the mime_type pointer, likely
+  leading to crashes.
+  Typically, this means you will do 'AVProbeData pd = { 0 };' instead of
+  'AVProbeData pd;'.
+
+2014-07-29 - 31e0b5d / 69e7336 - lavu 52.92.100 / 53.19.0 - avstring.h
+  Make name matching function from lavf public as av_match_name().
+
+2014-07-28 - 2e5c8b0 / c5fca01 - lavc 55.71.100 / 55.57.0 - avcodec.h
+  Add AV_CODEC_PROP_REORDER to mark codecs supporting frame reordering.
+
+2014-07-27 - ff9a154 - lavf 55.50.100 - avformat.h
+  New field int64_t probesize2 instead of deprecated
+  field int probesize.
+
+2014-07-27 - 932ff70 - lavc 55.70.100 - avdct.h
+  Add AVDCT / avcodec_dct_alloc() / avcodec_dct_init().
+
+2014-07-23 - 8a4c086 - lavf 55.49.100 - avio.h
+  Add avio_read_to_bprint()
+
+
+-------- 8< --------- FFmpeg 2.3 was cut here -------- 8< ---------
+
+2014-07-14 - 62227a7 - lavf 55.47.100 - avformat.h
+  Add av_stream_get_parser()
+
+2014-07-09 - c67690f / a54f03b - lavu 52.92.100 / 53.18.0 - display.h
+  Add av_display_matrix_flip() to flip the transformation matrix.
+
+2014-07-09 - 1b58f13 / f6ee61f - lavc 55.69.100 / 55.56.0 - dv_profile.h
+  Add a public API for DV profile handling.
+
+2014-06-20 - 0dceefc / 9e500ef - lavu 52.90.100 / 53.17.0 - imgutils.h
+  Add av_image_check_sar().
+
+2014-06-20 - 4a99333 / 874390e - lavc 55.68.100 / 55.55.0 - avcodec.h
+  Add av_packet_rescale_ts() to simplify timestamp conversion.
+
+2014-06-18 - ac293b6 / 194be1f - lavf 55.44.100 / 55.20.0 - avformat.h
+  The proper way for providing a hint about the desired timebase to the muxers
+  is now setting AVStream.time_base, instead of AVStream.codec.time_base as was
+  done previously. The old method is now deprecated.
+
+2014-06-11 - 67d29da - lavc 55.66.101 - avcodec.h
+  Increase FF_INPUT_BUFFER_PADDING_SIZE to 32 due to some corner cases needing
+  it
+
+2014-06-10 - 5482780 - lavf 55.43.100 - avformat.h
+  New field int64_t max_analyze_duration2 instead of deprecated
+  int max_analyze_duration.
+
+2014-05-30 - 00759d7 - lavu 52.89.100 - opt.h
+  Add av_opt_copy()
+
+2014-06-01 - 03bb99a / 0957b27 - lavc 55.66.100 / 55.54.0 - avcodec.h
+  Add AVCodecContext.side_data_only_packets to allow encoders to output packets
+  with only side data. This option may become mandatory in the future, so all
+  users are recommended to update their code and enable this option.
+
+2014-06-01 - 6e8e9f1 / 8c02adc - lavu 52.88.100 / 53.16.0 - frame.h, pixfmt.h
+  Move all color-related enums (AVColorPrimaries, AVColorSpace, AVColorRange,
+  AVColorTransferCharacteristic, and AVChromaLocation) inside lavu.
+  And add AVFrame fields for them.
+
+2014-05-29 - bdb2e80 / b2d4565 - lavr 1.3.0 - avresample.h
+  Add avresample_max_output_samples
+
+2014-05-28 - d858ee7 / 6d21259 - lavf 55.42.100 / 55.19.0 - avformat.h
+  Add strict_std_compliance and related AVOptions to support experimental
+  muxing.
+
+2014-05-26 - 55cc60c - lavu 52.87.100 - threadmessage.h
+  Add thread message queue API.
+
+2014-05-26 - c37d179 - lavf 55.41.100 - avformat.h
+  Add format_probesize to AVFormatContext.
+
+2014-05-20 - 7d25af1 / c23c96b - lavf 55.39.100 / 55.18.0 - avformat.h
+  Add av_stream_get_side_data() to access stream-level side data
+  in the same way as av_packet_get_side_data().
+
+2014-05-20 - 7336e39 - lavu 52.86.100 - fifo.h
+  Add av_fifo_alloc_array() function.
+
+2014-05-19 - ef1d4ee / bddd8cb - lavu 52.85.100 / 53.15.0 - frame.h, display.h
+  Add AV_FRAME_DATA_DISPLAYMATRIX for exporting frame-level
+  spatial rendering on video frames for proper display.
+
+2014-05-19 - ef1d4ee / bddd8cb - lavc 55.64.100 / 55.53.0 - avcodec.h
+  Add AV_PKT_DATA_DISPLAYMATRIX for exporting packet-level
+  spatial rendering on video frames for proper display.
+
+2014-05-19 - 999a99c / a312f71 - lavf 55.38.101 / 55.17.1 - avformat.h
+  Deprecate AVStream.pts and the AVFrac struct, which was its only use case.
+  See use av_stream_get_end_pts()
+
+2014-05-18 - 68c0518 / fd05602 - lavc 55.63.100 / 55.52.0 - avcodec.h
+  Add avcodec_free_context(). From now on it should be used for freeing
+  AVCodecContext.
+
+2014-05-17 - 0eec06e / 1bd0bdc - lavu 52.84.100 / 54.5.0 - time.h
+  Add av_gettime_relative() av_gettime_relative_is_monotonic()
+
+2014-05-15 - eacf7d6 / 0c1959b - lavf 55.38.100 / 55.17.0 - avformat.h
+  Add AVFMT_FLAG_BITEXACT flag. Muxers now use it instead of checking
+  CODEC_FLAG_BITEXACT on the first stream.
+
+2014-05-15 - 96cb4c8 - lswr 0.19.100 - swresample.h
+  Add swr_close()
+
+2014-05-11 - 14aef38 / 66e6c8a - lavu 52.83.100 / 53.14.0 - pixfmt.h
+  Add AV_PIX_FMT_VDA for new-style VDA acceleration.
+
+2014-05-07 - 351f611 - lavu 52.82.100 - fifo.h
+  Add av_fifo_freep() function.
+
+2014-05-02 - ba52fb11 - lavu 52.81.100 - opt.h
+  Add av_opt_set_dict2() function.
+
+2014-05-01 - e77b985 / a2941c8 - lavc 55.60.103 / 55.50.3 - avcodec.h
+  Deprecate CODEC_FLAG_MV0. It is replaced by the flag "mv0" in the
+  "mpv_flags" private option of the mpegvideo encoders.
+
+2014-05-01 - e40ae8c / 6484149 - lavc 55.60.102 / 55.50.2 - avcodec.h
+  Deprecate CODEC_FLAG_GMC. It is replaced by the "gmc" private option of the
+  libxvid encoder.
+
+2014-05-01 - 1851643 / b2c3171 - lavc 55.60.101 / 55.50.1 - avcodec.h
+  Deprecate CODEC_FLAG_NORMALIZE_AQP. It is replaced by the flag "naq" in the
+  "mpv_flags" private option of the mpegvideo encoders.
+
+2014-05-01 - cac07d0 / 5fcceda - avcodec.h
+  Deprecate CODEC_FLAG_INPUT_PRESERVED. Its functionality is replaced by passing
+  reference-counted frames to encoders.
+
+2014-04-30 - 617e866 - lavu 52.81.100 - pixdesc.h
+  Add av_find_best_pix_fmt_of_2(), av_get_pix_fmt_loss()
+  Deprecate avcodec_get_pix_fmt_loss(), avcodec_find_best_pix_fmt_of_2()
+
+2014-04-29 - 1bf6396 - lavc 55.60.100 - avcodec.h
+  Add AVCodecDescriptor.mime_types field.
+
+2014-04-29 - b804eb4 - lavu 52.80.100 - hash.h
+  Add av_hash_final_bin(), av_hash_final_hex() and av_hash_final_b64().
+
+2014-03-07 - 8b2a130 - lavc 55.50.0 / 55.53.100 - dxva2.h
+  Add FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO for old Intel GPUs.
+
+2014-04-22 - 502512e /dac7e8a - lavu 53.13.0 / 52.78.100 - avutil.h
+  Add av_get_time_base_q().
+
+2014-04-17 - a8d01a7 / 0983d48 - lavu 53.12.0 / 52.77.100 - crc.h
+  Add AV_CRC_16_ANSI_LE crc variant.
+
+2014-04-15 - ef818d8 - lavf 55.37.101 - avformat.h
+  Add av_format_inject_global_side_data()
+
+2014-04-12 - 4f698be - lavu 52.76.100 - log.h
+  Add av_log_get_flags()
+
+2014-04-11 - 6db42a2b - lavd 55.12.100 - avdevice.h
+  Add avdevice_capabilities_create() function.
+  Add avdevice_capabilities_free() function.
+
+2014-04-07 - 0a1cc04 / 8b17243 - lavu 52.75.100 / 53.11.0 - pixfmt.h
+  Add AV_PIX_FMT_YVYU422 pixel format.
+
+2014-04-04 - c1d0536 / 8542f9c - lavu 52.74.100 / 53.10.0 - replaygain.h
+  Full scale for peak values is now 100000 (instead of UINT32_MAX) and values
+  may overflow.
+
+2014-04-03 - c16e006 / 7763118 - lavu 52.73.100 / 53.9.0 - log.h
+  Add AV_LOG(c) macro to have 256 color debug messages.
+
+2014-04-03 - eaed4da9 - lavu 52.72.100 - opt.h
+  Add AV_OPT_MULTI_COMPONENT_RANGE define to allow return
+  multi-component option ranges.
+
+2014-03-29 - cd50a44b - lavu 52.70.100 - mem.h
+  Add av_dynarray_add_nofree() function.
+
+2014-02-24 - 3e1f241 / d161ae0 - lavu 52.69.100 / 53.8.0 - frame.h
+  Add av_frame_remove_side_data() for removing a single side data
+  instance from a frame.
+
+2014-03-24 - 83e8978 / 5a7e35d - lavu 52.68.100 / 53.7.0 - frame.h, replaygain.h
+  Add AV_FRAME_DATA_REPLAYGAIN for exporting replaygain tags.
+  Add a new header replaygain.h with the AVReplayGain struct.
+
+2014-03-24 - 83e8978 / 5a7e35d - lavc 55.54.100 / 55.36.0 - avcodec.h
+  Add AV_PKT_DATA_REPLAYGAIN for exporting replaygain tags.
+
+2014-03-24 - 595ba3b / 25b3258 - lavf 55.35.100 / 55.13.0 - avformat.h
+  Add AVStream.side_data and AVStream.nb_side_data for exporting stream-global
+  side data (e.g. replaygain tags, video rotation)
+
+2014-03-24 - bd34e26 / 0e2c3ee - lavc 55.53.100 / 55.35.0 - avcodec.h
+  Give the name AVPacketSideData to the previously anonymous struct used for
+  AVPacket.side_data.
+
+
+-------- 8< --------- FFmpeg 2.2 was cut here -------- 8< ---------
+
+2014-03-18 - 37c07d4 - lsws 2.5.102
+  Make gray16 full-scale.
+
+2014-03-16 - 6b1ca17 / 1481d24 - lavu 52.67.100 / 53.6.0 - pixfmt.h
+  Add RGBA64_LIBAV pixel format and variants for compatibility
+
+2014-03-11 - 3f3229c - lavf 55.34.101 - avformat.h
+  Set AVFormatContext.start_time_realtime when demuxing.
+
+2014-03-03 - 06fed440 - lavd 55.11.100 - avdevice.h
+  Add av_input_audio_device_next().
+  Add av_input_video_device_next().
+  Add av_output_audio_device_next().
+  Add av_output_video_device_next().
+
+2014-02-24 - fff5262 / 1155fd0 - lavu 52.66.100 / 53.5.0 - frame.h
   Add av_frame_copy() for copying the frame data.
 
-2014-02-xx - xxxxxxx - lswr 0.18.100 - swresample.h
+2014-02-24 - a66be60 - lswr 0.18.100 - swresample.h
   Add swr_is_initialized() for checking whether a resample context is initialized.
 
-2014-02-xx - xxxxxxx - lavr 1.2.0 - avresample.h
+2014-02-22 - 5367c0b / 7e86c27 - lavr 1.2.0 - avresample.h
   Add avresample_is_open() for checking whether a resample context is open.
 
-2014-xx-xx - xxxxxxx - lavu 53.04.0  - opt.h
+2014-02-19 - 6a24d77 / c3ecd96 - lavu 52.65.100 / 53.4.0  - opt.h
   Add AV_OPT_FLAG_EXPORT and AV_OPT_FLAG_READONLY to mark options meant (only)
   for reading.
 
-2014-xx-xx - xxxxxxx - lavu 53.03.01 - opt.h
+2014-02-19 - f4c8d00 / 6bb8720 - lavu 52.64.101 / 53.3.1 - opt.h
   Deprecate unused AV_OPT_FLAG_METADATA.
 
-2014-02-xx - xxxxxxx - lavd 55.10.100 - avdevice.h
+2014-02-16 - 81c3f81 - lavd 55.10.100 - avdevice.h
   Add avdevice_list_devices() and avdevice_free_list_devices()
 
 2014-02-16 - db3c970 - lavf 55.33.100 - avio.h
   Add avio_find_protocol_name() to find out the name of the protocol that would
   be selected for a given URL.
 
-2014-02-xx - xxxxxxx - lavu 53.3.0 - frame.h
+2014-02-15 - a2bc6c1 / c98f316 - lavu 52.64.100 / 53.3.0 - frame.h
   Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
   downmix_info.h API, which identify downmix-related metadata.
 
@@ -49,7 +448,7 @@ API changes, most recent first:
   Add AVFormatContext.max_interleave_delta for controlling amount of buffering
   when interleaving.
 
-2014-02-02 - xxxxxxx - lavf 55.29.100 - avformat.h
+2014-02-02 - 5871ee5 - lavf 55.29.100 - avformat.h
   Add output_ts_offset muxing option to AVFormatContext.
 
 2014-01-27 - 102bd64 - lavd 55.7.100 - avdevice.h
@@ -69,10 +468,10 @@ API changes, most recent first:
   (i.e. as if the CODEC_FLAG_EMU_EDGE flag was always on). Deprecate
   CODEC_FLAG_EMU_EDGE and avcodec_get_edge_width().
 
-2014-01-19 - xxxxxxx - lavf 55.25.100 - avformat.h
+2014-01-19 - 1a193c4 - lavf 55.25.100 - avformat.h
   Add avformat_get_mov_video_tags() and avformat_get_mov_audio_tags().
 
-2014-01-19 - xxxxxxx - lavu 52.63.100 - rational.h
+2014-01-19 - 3532dd5 - lavu 52.63.100 - rational.h
   Add av_make_q() function.
 
 2014-01-05 - 4cf4da9 / 5b4797a - lavu 52.62.100 / 53.2.0 - frame.h
@@ -82,16 +481,16 @@ API changes, most recent first:
 2014-01-05 - 751385f / 5c437fb - lavu 52.61.100 / 53.1.0 - channel_layout.h
   Add values for various Dolby flags to the AVMatrixEncoding enum.
 
-2014-01-04 - xxxxxxx - lavu 52.60.100 - mathematics.h
+2014-01-04 - b317f94 - lavu 52.60.100 - mathematics.h
   Add av_add_stable() function.
 
-2013-12-22 - xxxxxxx - lavu 52.59.100 - avstring.h
+2013-12-22 - 911676c - lavu 52.59.100 - avstring.h
   Add av_strnlen() function.
 
-2013-12-xx - xxxxxxx - lavu 52.57.100 - opencl.h
+2013-12-09 - 64f73ac - lavu 52.57.100 - opencl.h
   Add av_opencl_benchmark() function.
 
-2013-11-xx - xxxxxxx - lavu 52.56.100 - ffversion.h
+2013-11-30 - 82b2e9c - lavu 52.56.100 - ffversion.h
   Moves version.h to libavutil/ffversion.h.
   Install ffversion.h and make it public.
 
@@ -108,13 +507,13 @@ API changes, most recent first:
   Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
   identifies ATSC A53 Part 4 Closed Captions data.
 
-2013-11-XX - xxxxxxx - lavu 52.54.100 - avstring.h
+2013-11-22 - 6859065 - lavu 52.54.100 - avstring.h
   Add av_utf8_decode() function.
 
 2013-11-22 - fb7d70c - lavc 55.44.100 - avcodec.h
   Add HEVC profiles
 
-2013-11-xx - xxxxxxx - lavc 55.44.100 - avcodec.h
+2013-11-20 - c28b61c - lavc 55.44.100 - avcodec.h
   Add av_packet_{un,}pack_dictionary()
   Add AV_PKT_METADATA_UPDATE side data type, used to transmit key/value
   strings between a stream and the application.
@@ -126,7 +525,7 @@ API changes, most recent first:
   Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
   private option of the mpegvideo encoder family.
 
-2013-11-14 - 31c09b7 / 728c465 - lavc 55.26.0 - vdpau.h
+2013-11-14 - 31c09b7 / 728c465 - lavc 55.42.100 / 55.26.0 - vdpau.h
   Add av_vdpau_get_profile().
   Add av_vdpau_alloc_context(). This function must from now on be
   used for allocating AVVDPAUContext.
@@ -136,29 +535,32 @@ API changes, most recent first:
   Add ITU-R BT.2020 and other not yet included values to color primaries,
   transfer characteristics and colorspaces.
 
-2013-11-04 - xxxxxxx - lavu 52.50.100 - avutil.h
+2013-11-04 - 85cabf1 - lavu 52.50.100 - avutil.h
   Add av_fopen_utf8()
 
 2013-10-31 - 78265fc / 28096e0 - lavu 52.49.100 / 52.17.0 - frame.h
   Add AVFrame.flags and AV_FRAME_FLAG_CORRUPT.
 
-2013-10-27 - xxxxxxx - lavc 55.39.100 - avcodec.h
+
+-------- 8< --------- FFmpeg 2.1 was cut here -------- 8< ---------
+
+2013-10-27 - dbe6f9f - lavc 55.39.100 - avcodec.h
   Add CODEC_CAP_DELAY support to avcodec_decode_subtitle2.
 
-2013-10-27 - xxxxxxx - lavu 52.48.100 - parseutils.h
+2013-10-27 - d61617a - lavu 52.48.100 - parseutils.h
   Add av_get_known_color_name().
 
-2013-10-17 - xxxxxxx - lavu 52.47.100 - opt.h
+2013-10-17 - 8696e51 - lavu 52.47.100 - opt.h
   Add AV_OPT_TYPE_CHANNEL_LAYOUT and channel layout option handlers
   av_opt_get_channel_layout() and av_opt_set_channel_layout().
 
-2013-10-xx - xxxxxxx -libswscale 2.5.101 - options.c
+2013-10-06 - ccf96f8 -libswscale 2.5.101 - options.c
   Change default scaler to bicubic
 
-2013-10-03 - xxxxxxx - lavc 55.34.100 - avcodec.h
+2013-10-03 - e57dba0 - lavc 55.34.100 - avcodec.h
   Add av_codec_get_max_lowres()
 
-2013-10-02 - xxxxxxx - lavf 55.19.100 - avformat.h
+2013-10-02 - 5082fcc - lavf 55.19.100 - avformat.h
   Add audio/video/subtitle AVCodec fields to AVFormatContext to force specific
   decoders
 
@@ -176,7 +578,7 @@ API changes, most recent first:
 2013-09-04 - 3e1f507 - lavc 55.31.101 - avcodec.h
   avcodec_close() argument can be NULL.
 
-2013-09-04 - 36cd017 - lavf 55.16.101 - avformat.h
+2013-09-04 - 36cd017a - lavf 55.16.101 - avformat.h
   avformat_close_input() argument can be NULL and point on NULL.
 
 2013-08-29 - e31db62 - lavf 55.15.100 - avformat.h
@@ -185,10 +587,10 @@ API changes, most recent first:
 2013-08-15 - 1e0e193 - lsws 2.5.100 -
   Add a sws_dither AVOption, allowing to set the dither algorithm used
 
-2013-08-xx - xxxxxxx - lavc 55.27.100 - vdpau.h
+2013-08-11 - d404fe35 - lavc 55.27.100 - vdpau.h
   Add a render2 alternative to the render callback function.
 
-2013-08-xx - xxxxxxx - lavc 55.26.100 - vdpau.h
+2013-08-11 - af05edc - lavc 55.26.100 - vdpau.h
   Add allocation function for AVVDPAUContext, allowing
   to extend it in the future without breaking ABI/API.
 
@@ -198,7 +600,7 @@ API changes, most recent first:
 
 2013-08-05 - 9547e3e / f824535 - lavc 55.22.100 / 55.13.0 - avcodec.h
   Deprecate the bitstream-related members from struct AVVDPAUContext.
-  The bistream buffers no longer need to be explicitly freed.
+  The bitstream buffers no longer need to be explicitly freed.
 
 2013-08-05 - 3b805dc / 549294f - lavc 55.21.100 / 55.12.0 - avcodec.h
   Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
@@ -214,6 +616,9 @@ API changes, most recent first:
   Add avcodec_chroma_pos_to_enum()
   Add avcodec_enum_to_chroma_pos()
 
+
+-------- 8< --------- FFmpeg 2.0 was cut here -------- 8< ---------
+
 2013-07-03 - 838bd73 - lavfi 3.78.100 - avfilter.h
   Deprecate avfilter_graph_parse() in favor of the equivalent
   avfilter_graph_parse_ptr().
@@ -286,6 +691,9 @@ API changes, most recent first:
 2013-03-17 - 7aa9af5 - lavu 52.20.100 - opt.h
   Add AV_OPT_TYPE_VIDEO_RATE value to AVOptionType enum.
 
+
+-------- 8< --------- FFmpeg 1.2 was cut here -------- 8< ---------
+
 2013-03-07 - 9767ec6 - lavu 52.18.100 - avstring.h,bprint.h
   Add av_escape() and av_bprint_escape() API.
 
@@ -298,6 +706,9 @@ API changes, most recent first:
 2013-01-01 - 2eb2e17 - lavfi 3.34.100
   Add avfilter_get_audio_buffer_ref_from_arrays_channels.
 
+
+-------- 8< --------- FFmpeg 1.1 was cut here -------- 8< ---------
+
 2012-12-20 - 34de47aa - lavfi 3.29.100 - avfilter.h
   Add AVFilterLink.channels, avfilter_link_get_channels()
   and avfilter_ref_get_channels().
@@ -343,6 +754,9 @@ API changes, most recent first:
   Add LIBSWRESAMPLE_VERSION, LIBSWRESAMPLE_BUILD
   and LIBSWRESAMPLE_IDENT symbols.
 
+
+-------- 8< --------- FFmpeg 1.0 was cut here -------- 8< ---------
+
 2012-09-06 - 29e972f - lavu 51.72.100 - parseutils.h
   Add av_small_strptime() time parsing function.
 
@@ -547,6 +961,9 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
   avresample_read() are now uint8_t** instead of void**.
   Libavresample is now stable.
 
+2012-09-26 - 3ba0dab7 / 1384df64 - lavf 54.29.101 / 56.06.3 - avformat.h
+  Add AVFormatContext.avoid_negative_ts.
+
 2012-09-24 - 46a3595 / a42aada - lavc 54.59.100 / 54.28.0 - avcodec.h
   Add avcodec_free_frame(). This function must now
   be used for freeing an AVFrame.
@@ -761,6 +1178,9 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
 2012-01-12 - b18e17e / 3167dc9 - lavfi 2.59.100 / 2.15.0
   Add a new installed header -- libavfilter/version.h -- with version macros.
 
+
+-------- 8< --------- FFmpeg 0.9 was cut here -------- 8< ---------
+
 2011-12-08 - a502939 - lavfi 2.52.0
   Add av_buffersink_poll_frame() to buffersink.h.
 
@@ -789,6 +1209,9 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
   Add avformat_close_input().
   Deprecate av_close_input_file() and av_close_input_stream().
 
+2011-12-09 - c59b80c / b2890f5 - lavu 51.32.0 / 51.20.0 - audioconvert.h
+  Expand the channel layout list.
+
 2011-12-02 - e4de716 / 0eea212 - lavc 53.40.0 / 53.25.0
   Add nb_samples and extended_data fields to AVFrame.
   Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
@@ -802,6 +1225,10 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
   Change AVCodecContext.error[4] to [8] at next major bump.
   Add AV_NUM_DATA_POINTERS to simplify the bump transition.
 
+2011-11-24 - lavu 51.29.0 / 51.19.0
+  92afb43 / bd97b2e - add planar RGB pixel formats
+  92afb43 / 6b0768e - add PIX_FMT_PLANAR and PIX_FMT_RGB pixel descriptions
+
 2011-11-23 - 8e576d5 / bbb46f3 - lavu 51.27.0 / 51.18.0
   Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
   av_samples_alloc(), to samplefmt.h.
@@ -963,6 +1390,13 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
 2011-06-28 - 5129336 - lavu 51.11.0 - avutil.h
   Define the AV_PICTURE_TYPE_NONE value in AVPictureType enum.
 
+
+-------- 8< --------- FFmpeg 0.7 was cut here -------- 8< ---------
+
+
+
+-------- 8< --------- FFmpeg 0.8 was cut here -------- 8< ---------
+
 2011-06-19 - fd2c0a5 - lavfi 2.23.0 - avfilter.h
   Add layout negotiation fields and helper functions.
 
@@ -1640,6 +2074,9 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
   Add av_get_codec_tag_string().
 
+
+-------- 8< --------- FFmpeg 0.6 was cut here -------- 8< ---------
+
 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
   Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
 
@@ -1657,10 +2094,6 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
   Add interlaced and top_field_first fields to AVFilterPicRef.
 
-------------------------------8<-------------------------------------
-                   0.6 branch was cut here
------------------------------>8--------------------------------------
-
 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
   Add av_probe_input_format2 to API, it allows ignoring probe
   results below given score and returns the actual probe score.

doc/Doxyfile

@@ -31,7 +31,7 @@ PROJECT_NAME           = FFmpeg
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         =
+PROJECT_NUMBER         = 2.6
 
 # With the PROJECT_LOGO tag one can specify a logo or icon that is included
 # in the documentation. The maximum height of the logo should not exceed 55
@@ -759,7 +759,7 @@ ALPHABETICAL_INDEX     = YES
 # the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns
 # in which this list will be split (can be a number in the range [1..20])
 
-COLS_IN_ALPHA_INDEX    = 2
+COLS_IN_ALPHA_INDEX    = 5
 
 # In case all classes in a project start with a common prefix, all
 # classes will be put under the same header in the alphabetical index.
@@ -1056,7 +1056,7 @@ FORMULA_TRANSPARENT    = YES
 # typically be disabled. For large projects the javascript based search engine
 # can be slow, then enabling SERVER_BASED_SEARCH may provide a better solution.
 
-SEARCHENGINE           = NO
+SEARCHENGINE           = YES
 
 # When the SERVER_BASED_SEARCH tag is enabled the search engine will be
 # implemented using a PHP enabled web server instead of at the web client
@@ -1359,6 +1359,8 @@ PREDEFINED             = "__attribute__(x)=" \
                          "DECLARE_ALIGNED(a,t,n)=t n" \
                          "offsetof(x,y)=0x42" \
                          av_alloc_size \
+                         AV_GCC_VERSION_AT_LEAST(x,y)=1 \
+                         __GNUC__=1 \
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
 # this tag can be used to specify a list of macro names that should be expanded.

doc/Makefile

@@ -38,16 +38,20 @@ DOCS = $(DOCS-yes)
 
 DOC_EXAMPLES-$(CONFIG_AVIO_READING_EXAMPLE)      += avio_reading
 DOC_EXAMPLES-$(CONFIG_AVCODEC_EXAMPLE)           += avcodec
+DOC_EXAMPLES-$(CONFIG_DECODING_ENCODING_EXAMPLE) += decoding_encoding
 DOC_EXAMPLES-$(CONFIG_DEMUXING_DECODING_EXAMPLE) += demuxing_decoding
+DOC_EXAMPLES-$(CONFIG_EXTRACT_MVS_EXAMPLE)       += extract_mvs
 DOC_EXAMPLES-$(CONFIG_FILTER_AUDIO_EXAMPLE)      += filter_audio
 DOC_EXAMPLES-$(CONFIG_FILTERING_AUDIO_EXAMPLE)   += filtering_audio
 DOC_EXAMPLES-$(CONFIG_FILTERING_VIDEO_EXAMPLE)   += filtering_video
 DOC_EXAMPLES-$(CONFIG_METADATA_EXAMPLE)          += metadata
 DOC_EXAMPLES-$(CONFIG_MUXING_EXAMPLE)            += muxing
+DOC_EXAMPLES-$(CONFIG_QSVDEC_EXAMPLE)            += qsvdec
 DOC_EXAMPLES-$(CONFIG_REMUXING_EXAMPLE)          += remuxing
 DOC_EXAMPLES-$(CONFIG_RESAMPLING_AUDIO_EXAMPLE)  += resampling_audio
 DOC_EXAMPLES-$(CONFIG_SCALING_VIDEO_EXAMPLE)     += scaling_video
 DOC_EXAMPLES-$(CONFIG_TRANSCODE_AAC_EXAMPLE)     += transcode_aac
+DOC_EXAMPLES-$(CONFIG_TRANSCODING_EXAMPLE)       += transcoding
 ALL_DOC_EXAMPLES_LIST = $(DOC_EXAMPLES-) $(DOC_EXAMPLES-yes)
 
 DOC_EXAMPLES       := $(DOC_EXAMPLES-yes:%=doc/examples/%$(PROGSSUF)$(EXESUF))
@@ -79,14 +83,25 @@ $(GENTEXI): doc/avoptions_%.texi: doc/print_options$(HOSTEXESUF)
 	$(M)doc/print_options $* > $@
 
 doc/%.html: TAG = HTML
+doc/%-all.html: TAG = HTML
+
+ifdef HAVE_MAKEINFO_HTML
+doc/%.html: doc/%.texi $(SRC_PATH)/doc/t2h.pm $(GENTEXI)
+	$(Q)$(TEXIDEP)
+	$(M)makeinfo --html -I doc --no-split -D config-not-all --init-file=$(SRC_PATH)/doc/t2h.pm --output $@ $<
+
+doc/%-all.html: doc/%.texi $(SRC_PATH)/doc/t2h.pm $(GENTEXI)
+	$(Q)$(TEXIDEP)
+	$(M)makeinfo --html -I doc --no-split -D config-all --init-file=$(SRC_PATH)/doc/t2h.pm --output $@ $<
+else
 doc/%.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
 	$(Q)$(TEXIDEP)
 	$(M)texi2html -I doc -monolithic --D=config-not-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
 
-doc/%-all.html: TAG = HTML
 doc/%-all.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
 	$(Q)$(TEXIDEP)
 	$(M)texi2html -I doc -monolithic --D=config-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
+endif
 
 doc/%.pod: TAG = POD
 doc/%.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
@@ -100,9 +115,9 @@ doc/%-all.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
 
 doc/%.1 doc/%.3: TAG = MAN
 doc/%.1: doc/%.pod $(GENTEXI)
-	$(M)pod2man --section=1 --center=" " --release=" " $< > $@
+	$(M)pod2man --section=1 --center=" " --release=" " --date=" " $< > $@
 doc/%.3: doc/%.pod $(GENTEXI)
-	$(M)pod2man --section=3 --center=" " --release=" " $< > $@
+	$(M)pod2man --section=3 --center=" " --release=" " --date=" " $< > $@
 
 $(DOCS) doc/doxy/html: | doc/
 $(DOC_EXAMPLES:%$(EXESUF)=%.o): | doc/examples
@@ -110,8 +125,9 @@ OBJDIRS += doc/examples
 
 DOXY_INPUT      = $(addprefix $(SRC_PATH)/, $(INSTHEADERS) $(DOC_EXAMPLES:%$(EXESUF)=%.c) $(LIB_EXAMPLES:%$(EXESUF)=%.c))
 
-doc/doxy/html: $(SRC_PATH)/doc/Doxyfile $(DOXY_INPUT)
-	$(M)$(SRC_PATH)/doc/doxy-wrapper.sh $(SRC_PATH) $< $(DOXY_INPUT)
+doc/doxy/html: TAG = DOXY
+doc/doxy/html: $(SRC_PATH)/doc/Doxyfile $(SRC_PATH)/doc/doxy-wrapper.sh $(DOXY_INPUT)
+	$(M)$(SRC_PATH)/doc/doxy-wrapper.sh $(SRC_PATH) $< $(DOXYGEN) $(DOXY_INPUT)
 
 install-doc: install-html install-man
 

doc/RELEASE_NOTES

@@ -1,16 +0,0 @@
-Release Notes
-=============
-
-* 2.2 "Muybridge"  March, 2014
-
-
-General notes
--------------
-See the Changelog file for a list of significant changes. Note, there
-are many more new features and bugfixes than whats listed there.
-
-Bugreports against FFmpeg git master or the most recent FFmpeg release are
-accepted. If you are experiencing issues with any formally released version of
-FFmpeg, please try git master to check if the issue still exists. If it does,
-make your report against the development code following the usual bug reporting
-guidelines.

doc/bitstream_filters.texi

@@ -13,7 +13,16 @@ bitstream filter using the option @code{--disable-bsf=BSF}.
 The option @code{-bsfs} of the ff* tools will display the list of
 all the supported bitstream filters included in your build.
 
-Below is a description of the currently available bitstream filters.
+The ff* tools have a -bsf option applied per stream, taking a
+comma-separated list of filters, whose parameters follow the filter
+name after a '='.
+
+@example
+ffmpeg -i INPUT -c:v copy -bsf:v filter1[=opt1=str1/opt2=str2][,filter2] OUTPUT
+@end example
+
+Below is a description of the currently available bitstream filters,
+with their parameters, if any.
 
 @section aac_adtstoasc
 
@@ -74,7 +83,18 @@ format with @command{ffmpeg}, you can use the command:
 ffmpeg -i INPUT.mp4 -codec copy -bsf:v h264_mp4toannexb OUTPUT.ts
 @end example
 
-@section imx_dump_header
+@section imxdump
+
+Modifies the bitstream to fit in MOV and to be usable by the Final Cut
+Pro decoder. This filter only applies to the mpeg2video codec, and is
+likely not needed for Final Cut Pro 7 and newer with the appropriate
+@option{-tag:v}.
+
+For example, to remux 30 MB/sec NTSC IMX to MOV:
+
+@example
+ffmpeg -i input.mxf -c copy -bsf:v imxdump -tag:v mx3n output.mov
+@end example
 
 @section mjpeg2jpeg
 
@@ -121,6 +141,20 @@ ffmpeg -i frame_%d.jpg -c:v copy rotated.avi
 
 @section noise
 
+Damages the contents of packets without damaging the container. Can be
+used for fuzzing or testing error resilience/concealment.
+
+Parameters:
+A numeral string, whose value is related to how often output bytes will
+be modified. Therefore, values below or equal to 0 are forbidden, and
+the lower the more frequent bytes will be modified, with 1 meaning
+every byte is modified.
+
+@example
+ffmpeg -i INPUT -c copy -bsf noise[=1] output.mkv
+@end example
+applies the modification to every byte.
+
 @section remove_extra
 
 @c man end BITSTREAM FILTERS

doc/build_system.txt

@@ -7,6 +7,11 @@ V
     Disable the default terse mode, the full command issued by make and its
     output will be shown on the screen.
 
+DBG
+    Preprocess x86 external assembler files to a .dbg.asm file in the object
+    directory, which then gets compiled. Helps developping those assembler
+    files.
+
 DESTDIR
     Destination directory for the install targets, useful to prepare packages
     or install FFmpeg in cross-environments.
@@ -25,6 +30,9 @@ fate-list
 install
     Install headers, libraries and programs.
 
+examples
+    Build all examples located in doc/examples.
+
 libavformat/output-example
     Build the libavformat basic example.
 
@@ -34,6 +42,9 @@ libavcodec/api-example
 libswscale/swscale-test
     Build the swscale self-test (useful also as example).
 
+config
+    Reconfigure the project with current configuration.
+
 
 Useful standard make commands:
 make -t <target>

doc/codecs.texi

@@ -7,7 +7,7 @@ all the encoders and decoders. In addition each codec may support
 so-called private options, which are specific for a given codec.
 
 Sometimes, a global option may only affect a specific kind of codec,
-and may be unsensical or ignored by another, so you need to be aware
+and may be nonsensical or ignored by another, so you need to be aware
 of the meaning of the specified options. Also some options are
 meant only for decoding or encoding.
 
@@ -71,7 +71,9 @@ Force low delay.
 @item global_header
 Place global headers in extradata instead of every keyframe.
 @item bitexact
-Use only bitexact stuff (except (I)DCT).
+Only write platform-, build- and time-independent data. (except (I)DCT).
+This ensures that file and data checksums are reproducible and match between
+platforms. Its primary use is for regression testing.
 @item aic
 Apply H263 advanced intra coding / mpeg4 ac prediction.
 @item cbp
@@ -285,6 +287,11 @@ detect bitstream specification deviations
 detect improper bitstream length
 @item explode
 abort decoding on minor error detection
+@item ignore_err
+ignore decoding errors, and continue decoding.
+This is useful if you want to analyze the content of a video and thus want
+everything to be decoded no matter what. This option will not result in a video
+that is pleasing to watch in case of errors.
 @item careful
 consider things that violate the spec and have not been seen in the wild as errors
 @item compliant
@@ -389,6 +396,9 @@ Possible values:
 
 @item simplemmx
 
+@item simpleauto
+Automatically pick a IDCT compatible with the simple one
+
 @item arm
 
 @item altivec
@@ -424,6 +434,8 @@ Possible values:
 iterative motion vector (MV) search (slow)
 @item deblock
 use strong deblock filter for damaged MBs
+@item favor_inter
+favor predicting from the previous frame instead of the current
 @end table
 
 @item bits_per_coded_sample @var{integer}
@@ -483,11 +495,15 @@ visualize block types
 picture buffer allocations
 @item thread_ops
 threading operations
+@item nomc
+skip motion compensation
 @end table
 
 @item vismv @var{integer} (@emph{decoding,video})
 Visualize motion vectors (MVs).
 
+This option is deprecated, see the codecview filter instead.
+
 Possible values:
 @table @samp
 @item pf
@@ -787,6 +803,9 @@ Frame data might be split into multiple chunks.
 Show all frames before the first keyframe.
 @item skiprd
 Deprecated, use mpegvideo private options instead.
+@item export_mvs
+Export motion vectors into frame side-data (see @code{AV_FRAME_DATA_MOTION_VECTORS})
+for codecs that support it. See also @file{doc/examples/export_mvs.c}.
 @end table
 
 @item error @var{integer} (@emph{encoding,video})
@@ -846,6 +865,14 @@ Possible values:
 
 @item mpeg2_aac_he
 
+@item mpeg4_sp
+
+@item mpeg4_core
+
+@item mpeg4_main
+
+@item mpeg4_asp
+
 @item dts
 
 @item dts_es
@@ -879,7 +906,7 @@ Set frame skip factor.
 Set frame skip exponent.
 Negative values behave identical to the corresponding positive ones, except
 that the score is normalized.
-Positive values exist primarly for compatibility reasons and are not so useful.
+Positive values exist primarily for compatibility reasons and are not so useful.
 
 @item skipcmp @var{integer} (@emph{encoding,video})
 Set frame skip compare function.
@@ -1025,15 +1052,26 @@ Set the log level offset.
 Number of slices, used in parallelized encoding.
 
 @item thread_type @var{flags} (@emph{decoding/encoding,video})
-Select multithreading type.
+Select which multithreading methods to use.
+
+Use of @samp{frame} will increase decoding delay by one frame per
+thread, so clients which cannot provide future frames should not use
+it.
 
 Possible values:
 @table @samp
 @item slice
+Decode more than one part of a single frame at once.
+
+Multithreading using slices works only when the video was encoded with
+slices.
 
 @item frame
-
+Decode more than one frame at once.
 @end table
+
+Default value is @samp{slice+frame}.
+
 @item audio_service_type @var{integer} (@emph{encoding,audio})
 Set audio service type.
 
@@ -1088,6 +1126,19 @@ Interlaced video, bottom coded first, top displayed first
 Set to 1 to disable processing alpha (transparency). This works like the
 @samp{gray} flag in the @option{flags} option which skips chroma information
 instead of alpha. Default is 0.
+
+@item codec_whitelist @var{list} (@emph{input})
+"," separated List of allowed decoders. By default all are allowed.
+
+@item dump_separator @var{string} (@emph{input})
+Separator used to separate the fields printed on the command line about the
+Stream parameters.
+For example to separate the fields with newlines and indention:
+@example
+ffprobe -dump_separator "
+                          "  -i ~/videos/matrixbench_mpeg2.mpg
+@end example
+
 @end table
 
 @c man end CODEC OPTIONS

doc/decoders.texi

@@ -62,7 +62,7 @@ AC-3 audio decoder.
 This decoder implements part of ATSC A/52:2010 and ETSI TS 102 366, as well as
 the undocumented RealAudio 3 (a.k.a. dnet).
 
-@subsubsection AC-3 Decoder Options
+@subsection AC-3 Decoder Options
 
 @table @option
 
@@ -163,6 +163,9 @@ Requires the presence of the libopus headers and library during
 configuration. You need to explicitly configure the build with
 @code{--enable-libopus}.
 
+An FFmpeg native decoder for Opus exists, so users can decode Opus
+without this library.
+
 @c man end AUDIO DECODERS
 
 @chapter Subtitles Decoders
@@ -187,6 +190,15 @@ The format for this option is a string containing 16 24-bits hexadecimal
 numbers (without 0x prefix) separated by comas, for example @code{0d00ee,
 ee450d, 101010, eaeaea, 0ce60b, ec14ed, ebff0b, 0d617a, 7b7b7b, d1d1d1,
 7b2a0e, 0d950c, 0f007b, cf0dec, cfa80c, 7c127b}.
+
+@item ifo_palette
+Specify the IFO file from which the global palette is obtained.
+(experimental)
+
+@item forced_subs_only
+Only decode subtitle entries marked as forced. Some titles have forced
+and non-forced subtitles in the same track. Setting this flag to @code{1}
+will only keep the forced subtitles. Default value is @code{0}.
 @end table
 
 @section libzvbi-teletext

doc/demuxers.texi

@@ -29,6 +29,26 @@ the caller can decide which variant streams to actually receive.
 The total bitrate of the variant that the stream belongs to is
 available in a metadata key named "variant_bitrate".
 
+@section apng
+
+Animated Portable Network Graphics demuxer.
+
+This demuxer is used to demux APNG files.
+All headers, but the PNG signature, up to (but not including) the first
+fcTL chunk are transmitted as extradata.
+Frames are then split as being all the chunks between two fcTL ones, or
+between the last fcTL and IEND chunks.
+
+@table @option
+@item -ignore_loop @var{bool}
+Ignore the loop variable in the file if set.
+@item -max_fps @var{int}
+Maximum framerate in frames per second (0 for no limit).
+@item -default_fps @var{int}
+Default framerate in frames per second when none is specified in the file
+(0 meaning as fast as possible).
+@end table
+
 @section asf
 
 Advanced Systems Format demuxer.
@@ -74,7 +94,7 @@ following directive is recognized:
 Path to a file to read; special characters and spaces must be escaped with
 backslash or single quotes.
 
-All subsequent directives apply to that file.
+All subsequent file-related directives apply to that file.
 
 @item @code{ffconcat version 1.0}
 Identify the script type and version. It also sets the @option{safe} option
@@ -92,6 +112,22 @@ file is not available or accurate.
 If the duration is set for all files, then it is possible to seek in the
 whole concatenated video.
 
+@item @code{stream}
+Introduce a stream in the virtual file.
+All subsequent stream-related directives apply to the last introduced
+stream.
+Some streams properties must be set in order to allow identifying the
+matching streams in the subfiles.
+If no streams are defined in the script, the streams from the first file are
+copied.
+
+@item @code{exact_stream_id @var{id}}
+Set the id of the stream.
+If this directive is given, the string with the corresponding id in the
+subfiles will be used.
+This is especially useful for MPEG-PS (VOB) files, where the order of the
+streams is not reliable.
+
 @end table
 
 @subsection Options
@@ -112,6 +148,14 @@ If set to 0, any file name is accepted.
 The default is -1, it is equivalent to 1 if the format was automatically
 probed and 0 otherwise.
 
+@item auto_convert
+If set to 1, try to perform automatic conversions on packet data to make the
+streams concatenable.
+
+Currently, the only conversion is adding the h264_mp4toannexb bitstream
+filter to H.264 streams in MP4 format. This is necessary in particular if
+there are resolution changes.
+
 @end table
 
 @section flv
@@ -150,6 +194,40 @@ See @url{http://quvi.sourceforge.net/} for more information.
 FFmpeg needs to be built with @code{--enable-libquvi} for this demuxer to be
 enabled.
 
+@section gif
+
+Animated GIF demuxer.
+
+It accepts the following options:
+
+@table @option
+@item min_delay
+Set the minimum valid delay between frames in hundredths of seconds.
+Range is 0 to 6000. Default value is 2.
+
+@item default_delay
+Set the default delay between frames in hundredths of seconds.
+Range is 0 to 6000. Default value is 10.
+
+@item ignore_loop
+GIF files can contain information to loop a certain number of times (or
+infinitely). If @option{ignore_loop} is set to 1, then the loop setting
+from the input will be ignored and looping will not occur. If set to 0,
+then looping will occur and will cycle the number of times according to
+the GIF. Default value is 1.
+@end table
+
+For example, with the overlay filter, place an infinitely looping GIF
+over another video:
+@example
+ffmpeg -i input.mp4 -ignore_loop 0 -i input.gif -filter_complex overlay=shortest=1 out.mkv
+@end example
+
+Note that in the above example the shortest option for overlay filter is
+used to end the output video at the length of the shortest input file,
+which in this case is @file{input.mp4} as the GIF in this example loops
+infinitely.
+
 @section image2
 
 Image file demuxer.
@@ -249,6 +327,8 @@ is 5.
 If set to 1, will set frame timestamp to modification time of image file. Note
 that monotonity of timestamps is not provided: images go in the same order as
 without this option. Default value is 0.
+If set to 2, will set frame timestamp to the modification time of the image file in
+nanosecond precision.
 @item video_size
 Set the video size of the images to read. If not specified the video
 size is guessed from the first image file in the sequence.
@@ -296,7 +376,7 @@ teletext packet PTS and DTS values untouched.
 
 Raw video demuxer.
 
-This demuxer allows to read raw video data. Since there is no header
+This demuxer allows one to read raw video data. Since there is no header
 specifying the assumed video parameters, the user must specify them
 in order to be able to decode the data correctly.
 

doc/developer.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Developer Documentation
 @titlepage
@@ -323,9 +324,12 @@ Always fill out the commit log message. Describe in a few lines what you
 changed and why. You can refer to mailing list postings if you fix a
 particular bug. Comments such as "fixed!" or "Changed it." are unacceptable.
 Recommended format:
+
+@example
 area changed: Short 1 line description
 
 details describing what and why and giving references.
+@end example
 
 @item
 Make sure the author of the commit is set correctly. (see git commit --author)
@@ -644,12 +648,12 @@ accordingly].
 @subsection Adding files to the fate-suite dataset
 
 When there is no muxer or encoder available to generate test media for a
-specific test then the media has to be inlcuded in the fate-suite.
+specific test then the media has to be included in the fate-suite.
 First please make sure that the sample file is as small as possible to test the
 respective decoder or demuxer sufficiently. Large files increase network
 bandwidth and disk space requirements.
 Once you have a working fate test and fate sample, provide in the commit
-message or introductionary message for the patch series that you post to
+message or introductory message for the patch series that you post to
 the ffmpeg-devel mailing list, a direct link to download the sample media.
 
 

doc/doxy-wrapper.sh

@@ -2,11 +2,20 @@
 
 SRC_PATH="${1}"
 DOXYFILE="${2}"
+DOXYGEN="${3}"
 
-shift 2
+shift 3
 
-doxygen - <<EOF
+if [ -e "$SRC_PATH/VERSION" ]; then
+    VERSION=`cat "$SRC_PATH/VERSION"`
+else
+    VERSION=`cd "$SRC_PATH"; git describe`
+fi
+
+$DOXYGEN - <<EOF
 @INCLUDE        = ${DOXYFILE}
 INPUT           = $@
 EXAMPLE_PATH    = ${SRC_PATH}/doc/examples
+HTML_TIMESTAMP  = NO
+PROJECT_NUMBER  = $VERSION
 EOF

doc/encoders.texi

@@ -80,7 +80,7 @@ thresholds with quantizer steps to find the appropriate quantization with
 distortion below threshold band by band.
 
 The quality of this method is comparable to the two loop searching method
-descibed below, but somewhat a little better and slower.
+described below, but somewhat a little better and slower.
 
 @item anmr
 Average noise to mask ratio (ANMR) trellis-based solution.
@@ -807,7 +807,7 @@ while producing the worst quality.
 
 @item reservoir
 Enable use of bit reservoir when set to 1. Default value is 1. LAME
-has this enabled by default, but can be overriden by use
+has this enabled by default, but can be overridden by use
 @option{--nores} option.
 
 @item joint_stereo (@emph{-m j})
@@ -1032,7 +1032,7 @@ configuration. You need to explicitly configure the build with
 
 @subsection Option Mapping
 
-Most libopus options are modeled after the @command{opusenc} utility from
+Most libopus options are modelled after the @command{opusenc} utility from
 opus-tools. The following is an option mapping chart describing options
 supported by the libopus wrapper, and their @command{opusenc}-equivalent
 in parentheses.
@@ -1271,7 +1271,7 @@ Requires the presence of the libtheora headers and library during
 configuration. You need to explicitly configure the build with
 @code{--enable-libtheora}.
 
-For more informations about the libtheora project see
+For more information about the libtheora project see
 @url{http://www.theora.org/}.
 
 @subsection Options
@@ -1330,7 +1330,7 @@ ffmpeg -i INPUT -codec:v libtheora -b:v 1000k OUTPUT.ogg
 
 @section libvpx
 
-VP8 format supported through libvpx.
+VP8/VP9 format supported through libvpx.
 
 Requires the presence of the libvpx headers and library during configuration.
 You need to explicitly configure the build with @code{--enable-libvpx}.
@@ -1442,6 +1442,9 @@ g_lag_in_frames
 @item vp8flags error_resilient
 g_error_resilient
 
+@item aq_mode
+@code{VP9E_SET_AQ_MODE}
+
 @end table
 
 For more information about libvpx see:
@@ -1525,7 +1528,7 @@ for detail retention (adaptive quantization, psy-RD, psy-trellis).
 Many libx264 encoder options are mapped to FFmpeg global codec
 options, while unique encoder options are provided through private
 options. Additionally the @option{x264opts} and @option{x264-params}
-private options allows to pass a list of key=value tuples as accepted
+private options allows one to pass a list of key=value tuples as accepted
 by the libx264 @code{x264_param_parse} function.
 
 The x264 project website is at
@@ -1566,25 +1569,34 @@ kilobits/s.
 
 @item g (@emph{keyint})
 
-@item qmax (@emph{qpmax})
-
 @item qmin (@emph{qpmin})
+Minimum quantizer scale.
+
+@item qmax (@emph{qpmax})
+Maximum quantizer scale.
 
 @item qdiff (@emph{qpstep})
+Maximum difference between quantizer scales.
 
 @item qblur (@emph{qblur})
+Quantizer curve blur
 
 @item qcomp (@emph{qcomp})
+Quantizer curve compression factor
 
 @item refs (@emph{ref})
+Number of reference frames each P-frame can use. The range is from @var{0-16}.
 
 @item sc_threshold (@emph{scenecut})
+Sets the threshold for the scene change detection.
 
 @item trellis (@emph{trellis})
+Performs Trellis quantization to increase efficiency. Enabled by default.
 
 @item nr  (@emph{nr})
 
 @item me_range (@emph{merange})
+Maximum range of the motion search in pixels.
 
 @item me_method (@emph{me})
 Set motion estimation method. Possible values in the decreasing order
@@ -1606,10 +1618,13 @@ Hadamard exhaustive search (slowest).
 @end table
 
 @item subq (@emph{subme})
+Sub-pixel motion estimation method.
 
 @item b_strategy (@emph{b-adapt})
+Adaptive B-frame placement decision algorithm. Use only on first-pass.
 
 @item keyint_min (@emph{min-keyint})
+Minimum GOP size.
 
 @item coder
 Set entropy encoder. Possible values:
@@ -1636,6 +1651,7 @@ Ignore chroma in motion estimation. It generates the same effect as
 @end table
 
 @item threads (@emph{threads})
+Number of encoding threads.
 
 @item thread_type
 Set multithreading technique. Possible values:
@@ -1729,6 +1745,10 @@ Enable calculation and printing SSIM stats after the encoding.
 Enable the use of Periodic Intra Refresh instead of IDR frames when set
 to 1.
 
+@item avcintra-class (@emph{class})
+Configure the encoder to generate AVC-Intra.
+Valid values are 50,100 and 200
+
 @item bluray-compat (@emph{bluray-compat})
 Configure the encoder to be compatible with the bluray standard.
 It is a shorthand for setting "bluray-compat=1 force-cfr=1".
@@ -1853,7 +1873,7 @@ Override the x264 configuration using a :-separated list of key=value
 parameters.
 
 This option is functionally the same as the @option{x264opts}, but is
-duplicated for compability with the Libav fork.
+duplicated for compatibility with the Libav fork.
 
 For example to specify libx264 encoding options with @command{ffmpeg}:
 @example
@@ -1866,6 +1886,34 @@ no-fast-pskip=1:subq=6:8x8dct=0:trellis=0 OUTPUT
 Encoding ffpresets for common usages are provided so they can be used with the
 general presets system (e.g. passing the @option{pre} option).
 
+@section libx265
+
+x265 H.265/HEVC encoder wrapper.
+
+This encoder requires the presence of the libx265 headers and library
+during configuration. You need to explicitly configure the build with
+@option{--enable-libx265}.
+
+@subsection Options
+
+@table @option
+@item preset
+Set the x265 preset.
+
+@item tune
+Set the x265 tune parameter.
+
+@item x265-params
+Set x265 options using a list of @var{key}=@var{value} couples separated
+by ":". See @command{x265 --help} for a list of options.
+
+For example to specify libx265 encoding options with @option{-x265-params}:
+
+@example
+ffmpeg -i input -c:v libx265 -x265-params crf=26:psy-rd=1 output.mp4
+@end example
+@end table
+
 @section libxvid
 
 Xvid MPEG-4 Part 2 encoder wrapper.
@@ -2029,6 +2077,30 @@ fastest.
 
 @end table
 
+@section mpeg2
+
+MPEG-2 video encoder.
+
+@subsection Options
+
+@table @option
+@item seq_disp_ext @var{integer}
+Specifies if the encoder should write a sequence_display_extension to the
+output.
+@table @option
+@item -1
+@itemx auto
+Decide automatically to write it or not (this is the default) by checking if
+the data to be written is different from the default or unspecified values.
+@item 0
+@itemx never
+Never write it.
+@item 1
+@itemx always
+Always write it.
+@end table
+@end table
+
 @section png
 
 PNG image encoder.
@@ -2047,7 +2119,7 @@ Set physical density of pixels, in dots per meter, unset by default
 Apple ProRes encoder.
 
 FFmpeg contains 2 ProRes encoders, the prores-aw and prores-ks encoder.
-The used encoder can be choosen with the @code{-vcodec} option.
+The used encoder can be chosen with the @code{-vcodec} option.
 
 @subsection Private Options for prores-ks
 
@@ -2099,7 +2171,7 @@ Use @var{0} to disable alpha plane coding.
 @subsection Speed considerations
 
 In the default mode of operation the encoder has to honor frame constraints
-(i.e. not produc frames with size bigger than requested) while still making
+(i.e. not produce frames with size bigger than requested) while still making
 output picture as good as possible.
 A frame containing a lot of small details is harder to compress and the encoder
 would spend more time searching for appropriate quantizers for each slice.
@@ -2110,3 +2182,27 @@ For the fastest encoding speed set the @option{qscale} parameter (4 is the
 recommended value) and do not set a size constraint.
 
 @c man end VIDEO ENCODERS
+
+@chapter Subtitles Encoders
+@c man begin SUBTITLES ENCODERS
+
+@section dvdsub
+
+This codec encodes the bitmap subtitle format that is used in DVDs.
+Typically they are stored in VOBSUB file pairs (*.idx + *.sub),
+and they can also be used in Matroska files.
+
+@subsection Options
+
+@table @option
+@item even_rows_fix
+When set to 1, enable a work-around that makes the number of pixel rows
+even in all subtitles.  This fixes a problem with some players that
+cut off the bottom row if the number is odd.  The work-around just adds
+a fully transparent row if needed.  The overhead is low, typically
+one byte per subtitle on average.
+
+By default, this work-around is disabled.
+@end table
+
+@c man end SUBTITLES ENCODERS

doc/examples/Makefile

@@ -12,8 +12,9 @@ CFLAGS := $(shell pkg-config --cflags $(FFMPEG_LIBS)) $(CFLAGS)
 LDLIBS := $(shell pkg-config --libs $(FFMPEG_LIBS)) $(LDLIBS)
 
 EXAMPLES=       avio_reading                       \
-                avcodec                            \
+                decoding_encoding                  \
                 demuxing_decoding                  \
+                extract_mvs                        \
                 filtering_video                    \
                 filtering_audio                    \
                 metadata                           \
@@ -22,11 +23,13 @@ EXAMPLES=       avio_reading                       \
                 resampling_audio                   \
                 scaling_video                      \
                 transcode_aac                      \
+                transcoding                        \
 
 OBJS=$(addsuffix .o,$(EXAMPLES))
 
 # the following examples make explicit use of the math library
 avcodec:           LDLIBS += -lm
+decoding_encoding: LDLIBS += -lm
 muxing:            LDLIBS += -lm
 resampling_audio:  LDLIBS += -lm
 

doc/examples/avio_reading.c

@@ -119,8 +119,10 @@ int main(int argc, char *argv[])
 end:
     avformat_close_input(&fmt_ctx);
     /* note: the internal buffer could have changed, and be != avio_ctx_buffer */
-    av_freep(&avio_ctx->buffer);
-    av_freep(&avio_ctx);
+    if (avio_ctx) {
+        av_freep(&avio_ctx->buffer);
+        av_freep(&avio_ctx);
+    }
     av_file_unmap(buffer, buffer_size);
 
     if (ret < 0) {

doc/examples/decoding_encoding.c

@@ -24,7 +24,7 @@
  * @file
  * libavcodec API use example.
  *
- * @example avcodec.c
+ * @example decoding_encoding.c
  * Note that libavcodec only handles codecs (mpeg, mpeg4, etc...),
  * not file formats (avi, vob, mp4, mov, mkv, mxf, flv, mpegts, mpegps, etc...). See library 'libavformat' for the
  * format handling
@@ -288,6 +288,7 @@ static void audio_decode_example(const char *outfilename, const char *filename)
     avpkt.size = fread(inbuf, 1, AUDIO_INBUF_SIZE, f);
 
     while (avpkt.size > 0) {
+        int i, ch;
         int got_frame = 0;
 
         if (!decoded_frame) {
@@ -304,15 +305,15 @@ static void audio_decode_example(const char *outfilename, const char *filename)
         }
         if (got_frame) {
             /* if a frame has been decoded, output it */
-            int data_size = av_samples_get_buffer_size(NULL, c->channels,
-                                                       decoded_frame->nb_samples,
-                                                       c->sample_fmt, 1);
+            int data_size = av_get_bytes_per_sample(c->sample_fmt);
             if (data_size < 0) {
                 /* This should not occur, checking just for paranoia */
                 fprintf(stderr, "Failed to calculate data size\n");
                 exit(1);
             }
-            fwrite(decoded_frame->data[0], 1, data_size, outfile);
+            for (i=0; i<decoded_frame->nb_samples; i++)
+                for (ch=0; ch<c->channels; ch++)
+                    fwrite(decoded_frame->data[ch] + data_size*i, 1, data_size, outfile);
         }
         avpkt.size -= len;
         avpkt.data += len;
@@ -375,7 +376,13 @@ static void video_encode_example(const char *filename, int codec_id)
     c->height = 288;
     /* frames per second */
     c->time_base = (AVRational){1,25};
-    c->gop_size = 10; /* emit one intra frame every ten frames */
+    /* emit one intra frame every ten frames
+     * check frame pict_type before passing frame
+     * to encoder, if frame->pict_type is AV_PICTURE_TYPE_I
+     * then gop_size is ignored and the output of encoder
+     * will always be I frame irrespective to gop_size
+     */
+    c->gop_size = 10;
     c->max_b_frames = 1;
     c->pix_fmt = AV_PIX_FMT_YUV420P;
 
@@ -634,7 +641,7 @@ int main(int argc, char **argv)
                "This program generates a synthetic stream and encodes it to a file\n"
                "named test.h264, test.mp2 or test.mpg depending on output_type.\n"
                "The encoded stream is then decoded and written to a raw data output.\n"
-               "output_type must be choosen between 'h264', 'mp2', 'mpg'.\n",
+               "output_type must be chosen between 'h264', 'mp2', 'mpg'.\n",
                argv[0]);
         return 1;
     }
@@ -644,7 +651,7 @@ int main(int argc, char **argv)
         video_encode_example("test.h264", AV_CODEC_ID_H264);
     } else if (!strcmp(output_type, "mp2")) {
         audio_encode_example("test.mp2");
-        audio_decode_example("test.sw", "test.mp2");
+        audio_decode_example("test.pcm", "test.mp2");
     } else if (!strcmp(output_type, "mpg")) {
         video_encode_example("test.mpg", AV_CODEC_ID_MPEG1VIDEO);
         video_decode_example("test%02d.pgm", "test.mpg");

doc/examples/demuxing_decoding.c

@@ -36,6 +36,8 @@
 
 static AVFormatContext *fmt_ctx = NULL;
 static AVCodecContext *video_dec_ctx = NULL, *audio_dec_ctx;
+static int width, height;
+static enum AVPixelFormat pix_fmt;
 static AVStream *video_stream = NULL, *audio_stream = NULL;
 static const char *src_filename = NULL;
 static const char *video_dst_filename = NULL;
@@ -79,6 +81,20 @@ static int decode_packet(int *got_frame, int cached)
             fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret));
             return ret;
         }
+        if (video_dec_ctx->width != width || video_dec_ctx->height != height ||
+            video_dec_ctx->pix_fmt != pix_fmt) {
+            /* To handle this change, one could call av_image_alloc again and
+             * decode the following frames into another rawvideo file. */
+            fprintf(stderr, "Error: Width, height and pixel format have to be "
+                    "constant in a rawvideo file, but the width, height or "
+                    "pixel format of the input video changed:\n"
+                    "old: width = %d, height = %d, format = %s\n"
+                    "new: width = %d, height = %d, format = %s\n",
+                    width, height, av_get_pix_fmt_name(pix_fmt),
+                    video_dec_ctx->width, video_dec_ctx->height,
+                    av_get_pix_fmt_name(video_dec_ctx->pix_fmt));
+            return -1;
+        }
 
         if (*got_frame) {
             printf("video_frame%s n:%d coded_n:%d pts:%s\n",
@@ -90,7 +106,7 @@ static int decode_packet(int *got_frame, int cached)
              * this is required since rawvideo expects non aligned data */
             av_image_copy(video_dst_data, video_dst_linesize,
                           (const uint8_t **)(frame->data), frame->linesize,
-                          video_dec_ctx->pix_fmt, video_dec_ctx->width, video_dec_ctx->height);
+                          pix_fmt, width, height);
 
             /* write to rawvideo file */
             fwrite(video_dst_data[0], 1, video_dst_bufsize, video_dst_file);
@@ -138,7 +154,7 @@ static int decode_packet(int *got_frame, int cached)
 static int open_codec_context(int *stream_idx,
                               AVFormatContext *fmt_ctx, enum AVMediaType type)
 {
-    int ret;
+    int ret, stream_index;
     AVStream *st;
     AVCodecContext *dec_ctx = NULL;
     AVCodec *dec = NULL;
@@ -150,8 +166,8 @@ static int open_codec_context(int *stream_idx,
                 av_get_media_type_string(type), src_filename);
         return ret;
     } else {
-        *stream_idx = ret;
-        st = fmt_ctx->streams[*stream_idx];
+        stream_index = ret;
+        st = fmt_ctx->streams[stream_index];
 
         /* find decoder for the stream */
         dec_ctx = st->codec;
@@ -170,6 +186,7 @@ static int open_codec_context(int *stream_idx,
                     av_get_media_type_string(type));
             return ret;
         }
+        *stream_idx = stream_index;
     }
 
     return 0;
@@ -264,9 +281,11 @@ int main (int argc, char **argv)
         }
 
         /* allocate image where the decoded image will be put */
+        width = video_dec_ctx->width;
+        height = video_dec_ctx->height;
+        pix_fmt = video_dec_ctx->pix_fmt;
         ret = av_image_alloc(video_dst_data, video_dst_linesize,
-                             video_dec_ctx->width, video_dec_ctx->height,
-                             video_dec_ctx->pix_fmt, 1);
+                             width, height, pix_fmt, 1);
         if (ret < 0) {
             fprintf(stderr, "Could not allocate raw video buffer\n");
             goto end;
@@ -279,7 +298,7 @@ int main (int argc, char **argv)
         audio_dec_ctx = audio_stream->codec;
         audio_dst_file = fopen(audio_dst_filename, "wb");
         if (!audio_dst_file) {
-            fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
+            fprintf(stderr, "Could not open destination file %s\n", audio_dst_filename);
             ret = 1;
             goto end;
         }
@@ -341,7 +360,7 @@ int main (int argc, char **argv)
     if (video_stream) {
         printf("Play the output video file with the command:\n"
                "ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
-               av_get_pix_fmt_name(video_dec_ctx->pix_fmt), video_dec_ctx->width, video_dec_ctx->height,
+               av_get_pix_fmt_name(pix_fmt), width, height,
                video_dst_filename);
     }
 

doc/examples/extract_mvs.c

@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2012 Stefano Sabatini
+ * Copyright (c) 2014 Clément Bœsch
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <libavutil/motion_vector.h>
+#include <libavformat/avformat.h>
+
+static AVFormatContext *fmt_ctx = NULL;
+static AVCodecContext *video_dec_ctx = NULL;
+static AVStream *video_stream = NULL;
+static const char *src_filename = NULL;
+
+static int video_stream_idx = -1;
+static AVFrame *frame = NULL;
+static AVPacket pkt;
+static int video_frame_count = 0;
+
+static int decode_packet(int *got_frame, int cached)
+{
+    int decoded = pkt.size;
+
+    *got_frame = 0;
+
+    if (pkt.stream_index == video_stream_idx) {
+        int ret = avcodec_decode_video2(video_dec_ctx, frame, got_frame, &pkt);
+        if (ret < 0) {
+            fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret));
+            return ret;
+        }
+
+        if (*got_frame) {
+            int i;
+            AVFrameSideData *sd;
+
+            video_frame_count++;
+            sd = av_frame_get_side_data(frame, AV_FRAME_DATA_MOTION_VECTORS);
+            if (sd) {
+                const AVMotionVector *mvs = (const AVMotionVector *)sd->data;
+                for (i = 0; i < sd->size / sizeof(*mvs); i++) {
+                    const AVMotionVector *mv = &mvs[i];
+                    printf("%d,%2d,%2d,%2d,%4d,%4d,%4d,%4d,0x%"PRIx64"\n",
+                           video_frame_count, mv->source,
+                           mv->w, mv->h, mv->src_x, mv->src_y,
+                           mv->dst_x, mv->dst_y, mv->flags);
+                }
+            }
+        }
+    }
+
+    return decoded;
+}
+
+static int open_codec_context(int *stream_idx,
+                              AVFormatContext *fmt_ctx, enum AVMediaType type)
+{
+    int ret;
+    AVStream *st;
+    AVCodecContext *dec_ctx = NULL;
+    AVCodec *dec = NULL;
+    AVDictionary *opts = NULL;
+
+    ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0);
+    if (ret < 0) {
+        fprintf(stderr, "Could not find %s stream in input file '%s'\n",
+                av_get_media_type_string(type), src_filename);
+        return ret;
+    } else {
+        *stream_idx = ret;
+        st = fmt_ctx->streams[*stream_idx];
+
+        /* find decoder for the stream */
+        dec_ctx = st->codec;
+        dec = avcodec_find_decoder(dec_ctx->codec_id);
+        if (!dec) {
+            fprintf(stderr, "Failed to find %s codec\n",
+                    av_get_media_type_string(type));
+            return AVERROR(EINVAL);
+        }
+
+        /* Init the video decoder */
+        av_dict_set(&opts, "flags2", "+export_mvs", 0);
+        if ((ret = avcodec_open2(dec_ctx, dec, &opts)) < 0) {
+            fprintf(stderr, "Failed to open %s codec\n",
+                    av_get_media_type_string(type));
+            return ret;
+        }
+    }
+
+    return 0;
+}
+
+int main(int argc, char **argv)
+{
+    int ret = 0, got_frame;
+
+    if (argc != 2) {
+        fprintf(stderr, "Usage: %s <video>\n", argv[0]);
+        exit(1);
+    }
+    src_filename = argv[1];
+
+    av_register_all();
+
+    if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
+        fprintf(stderr, "Could not open source file %s\n", src_filename);
+        exit(1);
+    }
+
+    if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
+        fprintf(stderr, "Could not find stream information\n");
+        exit(1);
+    }
+
+    if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
+        video_stream = fmt_ctx->streams[video_stream_idx];
+        video_dec_ctx = video_stream->codec;
+    }
+
+    av_dump_format(fmt_ctx, 0, src_filename, 0);
+
+    if (!video_stream) {
+        fprintf(stderr, "Could not find video stream in the input, aborting\n");
+        ret = 1;
+        goto end;
+    }
+
+    frame = av_frame_alloc();
+    if (!frame) {
+        fprintf(stderr, "Could not allocate frame\n");
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    printf("framenum,source,blockw,blockh,srcx,srcy,dstx,dsty,flags\n");
+
+    /* initialize packet, set data to NULL, let the demuxer fill it */
+    av_init_packet(&pkt);
+    pkt.data = NULL;
+    pkt.size = 0;
+
+    /* read frames from the file */
+    while (av_read_frame(fmt_ctx, &pkt) >= 0) {
+        AVPacket orig_pkt = pkt;
+        do {
+            ret = decode_packet(&got_frame, 0);
+            if (ret < 0)
+                break;
+            pkt.data += ret;
+            pkt.size -= ret;
+        } while (pkt.size > 0);
+        av_free_packet(&orig_pkt);
+    }
+
+    /* flush cached frames */
+    pkt.data = NULL;
+    pkt.size = 0;
+    do {
+        decode_packet(&got_frame, 1);
+    } while (got_frame);
+
+end:
+    avcodec_close(video_dec_ctx);
+    avformat_close_input(&fmt_ctx);
+    av_frame_free(&frame);
+    return ret < 0;
+}

doc/examples/filter_audio.c

@@ -45,6 +45,7 @@
 
 #include "libavutil/channel_layout.h"
 #include "libavutil/md5.h"
+#include "libavutil/mem.h"
 #include "libavutil/opt.h"
 #include "libavutil/samplefmt.h"
 

doc/examples/filtering_audio.c

@@ -145,12 +145,28 @@ static int init_filters(const char *filters_descr)
         goto end;
     }
 
-    /* Endpoints for the filter graph. */
+    /*
+     * Set the endpoints for the filter graph. The filter_graph will
+     * be linked to the graph described by filters_descr.
+     */
+
+    /*
+     * The buffer source output must be connected to the input pad of
+     * the first filter described by filters_descr; since the first
+     * filter input label is not specified, it is set to "in" by
+     * default.
+     */
     outputs->name       = av_strdup("in");
     outputs->filter_ctx = buffersrc_ctx;
     outputs->pad_idx    = 0;
     outputs->next       = NULL;
 
+    /*
+     * The buffer sink input must be connected to the output pad of
+     * the last filter described by filters_descr; since the last
+     * filter output label is not specified, it is set to "out" by
+     * default.
+     */
     inputs->name       = av_strdup("out");
     inputs->filter_ctx = buffersink_ctx;
     inputs->pad_idx    = 0;

doc/examples/filtering_video.c

@@ -90,6 +90,7 @@ static int init_filters(const char *filters_descr)
     AVFilter *buffersink = avfilter_get_by_name("buffersink");
     AVFilterInOut *outputs = avfilter_inout_alloc();
     AVFilterInOut *inputs  = avfilter_inout_alloc();
+    AVRational time_base = fmt_ctx->streams[video_stream_index]->time_base;
     enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
 
     filter_graph = avfilter_graph_alloc();
@@ -102,7 +103,7 @@ static int init_filters(const char *filters_descr)
     snprintf(args, sizeof(args),
             "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
             dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
-            dec_ctx->time_base.num, dec_ctx->time_base.den,
+            time_base.num, time_base.den,
             dec_ctx->sample_aspect_ratio.num, dec_ctx->sample_aspect_ratio.den);
 
     ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
@@ -127,12 +128,28 @@ static int init_filters(const char *filters_descr)
         goto end;
     }
 
-    /* Endpoints for the filter graph. */
+    /*
+     * Set the endpoints for the filter graph. The filter_graph will
+     * be linked to the graph described by filters_descr.
+     */
+
+    /*
+     * The buffer source output must be connected to the input pad of
+     * the first filter described by filters_descr; since the first
+     * filter input label is not specified, it is set to "in" by
+     * default.
+     */
     outputs->name       = av_strdup("in");
     outputs->filter_ctx = buffersrc_ctx;
     outputs->pad_idx    = 0;
     outputs->next       = NULL;
 
+    /*
+     * The buffer sink input must be connected to the output pad of
+     * the last filter described by filters_descr; since the last
+     * filter output label is not specified, it is set to "out" by
+     * default.
+     */
     inputs->name       = av_strdup("out");
     inputs->filter_ctx = buffersink_ctx;
     inputs->pad_idx    = 0;

doc/examples/muxing.c

@@ -34,6 +34,8 @@
 #include <string.h>
 #include <math.h>
 
+#include <libavutil/avassert.h>
+#include <libavutil/channel_layout.h>
 #include <libavutil/opt.h>
 #include <libavutil/mathematics.h>
 #include <libavutil/timestamp.h>
@@ -41,13 +43,28 @@
 #include <libswscale/swscale.h>
 #include <libswresample/swresample.h>
 
-static int audio_is_eof, video_is_eof;
-
 #define STREAM_DURATION   10.0
 #define STREAM_FRAME_RATE 25 /* 25 images/s */
 #define STREAM_PIX_FMT    AV_PIX_FMT_YUV420P /* default pix_fmt */
 
-static int sws_flags = SWS_BICUBIC;
+#define SCALE_FLAGS SWS_BICUBIC
+
+// a wrapper around a single output AVStream
+typedef struct OutputStream {
+    AVStream *st;
+
+    /* pts of the next frame that will be generated */
+    int64_t next_pts;
+    int samples_count;
+
+    AVFrame *frame;
+    AVFrame *tmp_frame;
+
+    float t, tincr, tincr2;
+
+    struct SwsContext *sws_ctx;
+    struct SwrContext *swr_ctx;
+} OutputStream;
 
 static void log_packet(const AVFormatContext *fmt_ctx, const AVPacket *pkt)
 {
@@ -63,9 +80,7 @@ static void log_packet(const AVFormatContext *fmt_ctx, const AVPacket *pkt)
 static int write_frame(AVFormatContext *fmt_ctx, const AVRational *time_base, AVStream *st, AVPacket *pkt)
 {
     /* rescale output packet timestamp values from codec to stream timebase */
-    pkt->pts = av_rescale_q_rnd(pkt->pts, *time_base, st->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
-    pkt->dts = av_rescale_q_rnd(pkt->dts, *time_base, st->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
-    pkt->duration = av_rescale_q(pkt->duration, *time_base, st->time_base);
+    av_packet_rescale_ts(pkt, *time_base, st->time_base);
     pkt->stream_index = st->index;
 
     /* Write the compressed frame to the media file. */
@@ -74,11 +89,12 @@ static int write_frame(AVFormatContext *fmt_ctx, const AVRational *time_base, AV
 }
 
 /* Add an output stream. */
-static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
-                            enum AVCodecID codec_id)
+static void add_stream(OutputStream *ost, AVFormatContext *oc,
+                       AVCodec **codec,
+                       enum AVCodecID codec_id)
 {
     AVCodecContext *c;
-    AVStream *st;
+    int i;
 
     /* find the encoder */
     *codec = avcodec_find_encoder(codec_id);
@@ -88,13 +104,13 @@ static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
         exit(1);
     }
 
-    st = avformat_new_stream(oc, *codec);
-    if (!st) {
+    ost->st = avformat_new_stream(oc, *codec);
+    if (!ost->st) {
         fprintf(stderr, "Could not allocate stream\n");
         exit(1);
     }
-    st->id = oc->nb_streams-1;
-    c = st->codec;
+    ost->st->id = oc->nb_streams-1;
+    c = ost->st->codec;
 
     switch ((*codec)->type) {
     case AVMEDIA_TYPE_AUDIO:
@@ -102,7 +118,24 @@ static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
             (*codec)->sample_fmts[0] : AV_SAMPLE_FMT_FLTP;
         c->bit_rate    = 64000;
         c->sample_rate = 44100;
-        c->channels    = 2;
+        if ((*codec)->supported_samplerates) {
+            c->sample_rate = (*codec)->supported_samplerates[0];
+            for (i = 0; (*codec)->supported_samplerates[i]; i++) {
+                if ((*codec)->supported_samplerates[i] == 44100)
+                    c->sample_rate = 44100;
+            }
+        }
+        c->channels        = av_get_channel_layout_nb_channels(c->channel_layout);
+        c->channel_layout = AV_CH_LAYOUT_STEREO;
+        if ((*codec)->channel_layouts) {
+            c->channel_layout = (*codec)->channel_layouts[0];
+            for (i = 0; (*codec)->channel_layouts[i]; i++) {
+                if ((*codec)->channel_layouts[i] == AV_CH_LAYOUT_STEREO)
+                    c->channel_layout = AV_CH_LAYOUT_STEREO;
+            }
+        }
+        c->channels        = av_get_channel_layout_nb_channels(c->channel_layout);
+        ost->st->time_base = (AVRational){ 1, c->sample_rate };
         break;
 
     case AVMEDIA_TYPE_VIDEO:
@@ -116,8 +149,9 @@ static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
          * of which frame timestamps are represented. For fixed-fps content,
          * timebase should be 1/framerate and timestamp increments should be
          * identical to 1. */
-        c->time_base.den = STREAM_FRAME_RATE;
-        c->time_base.num = 1;
+        ost->st->time_base = (AVRational){ 1, STREAM_FRAME_RATE };
+        c->time_base       = ost->st->time_base;
+
         c->gop_size      = 12; /* emit one intra frame every twelve frames at most */
         c->pix_fmt       = STREAM_PIX_FMT;
         if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
@@ -139,258 +173,262 @@ static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
     /* Some formats want stream headers to be separate. */
     if (oc->oformat->flags & AVFMT_GLOBALHEADER)
         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
-
-    return st;
 }
 
 /**************************************************************/
 /* audio output */
 
-static float t, tincr, tincr2;
-
-AVFrame *audio_frame;
-static uint8_t **src_samples_data;
-static int       src_samples_linesize;
-static int       src_nb_samples;
-
-static int max_dst_nb_samples;
-uint8_t **dst_samples_data;
-int       dst_samples_linesize;
-int       dst_samples_size;
-int samples_count;
-
-struct SwrContext *swr_ctx = NULL;
-
-static void open_audio(AVFormatContext *oc, AVCodec *codec, AVStream *st)
+static AVFrame *alloc_audio_frame(enum AVSampleFormat sample_fmt,
+                                  uint64_t channel_layout,
+                                  int sample_rate, int nb_samples)
 {
-    AVCodecContext *c;
+    AVFrame *frame = av_frame_alloc();
     int ret;
 
-    c = st->codec;
-
-    /* allocate and init a re-usable frame */
-    audio_frame = av_frame_alloc();
-    if (!audio_frame) {
-        fprintf(stderr, "Could not allocate audio frame\n");
+    if (!frame) {
+        fprintf(stderr, "Error allocating an audio frame\n");
         exit(1);
     }
 
+    frame->format = sample_fmt;
+    frame->channel_layout = channel_layout;
+    frame->sample_rate = sample_rate;
+    frame->nb_samples = nb_samples;
+
+    if (nb_samples) {
+        ret = av_frame_get_buffer(frame, 0);
+        if (ret < 0) {
+            fprintf(stderr, "Error allocating an audio buffer\n");
+            exit(1);
+        }
+    }
+
+    return frame;
+}
+
+static void open_audio(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
+{
+    AVCodecContext *c;
+    int nb_samples;
+    int ret;
+    AVDictionary *opt = NULL;
+
+    c = ost->st->codec;
+
     /* open it */
-    ret = avcodec_open2(c, codec, NULL);
+    av_dict_copy(&opt, opt_arg, 0);
+    ret = avcodec_open2(c, codec, &opt);
+    av_dict_free(&opt);
     if (ret < 0) {
         fprintf(stderr, "Could not open audio codec: %s\n", av_err2str(ret));
         exit(1);
     }
 
     /* init signal generator */
-    t     = 0;
-    tincr = 2 * M_PI * 110.0 / c->sample_rate;
+    ost->t     = 0;
+    ost->tincr = 2 * M_PI * 110.0 / c->sample_rate;
     /* increment frequency by 110 Hz per second */
-    tincr2 = 2 * M_PI * 110.0 / c->sample_rate / c->sample_rate;
+    ost->tincr2 = 2 * M_PI * 110.0 / c->sample_rate / c->sample_rate;
 
-    src_nb_samples = c->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE ?
-        10000 : c->frame_size;
+    if (c->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)
+        nb_samples = 10000;
+    else
+        nb_samples = c->frame_size;
 
-    ret = av_samples_alloc_array_and_samples(&src_samples_data, &src_samples_linesize, c->channels,
-                                             src_nb_samples, AV_SAMPLE_FMT_S16, 0);
-    if (ret < 0) {
-        fprintf(stderr, "Could not allocate source samples\n");
-        exit(1);
-    }
-
-    /* compute the number of converted samples: buffering is avoided
-     * ensuring that the output buffer will contain at least all the
-     * converted input samples */
-    max_dst_nb_samples = src_nb_samples;
+    ost->frame     = alloc_audio_frame(c->sample_fmt, c->channel_layout,
+                                       c->sample_rate, nb_samples);
+    ost->tmp_frame = alloc_audio_frame(AV_SAMPLE_FMT_S16, c->channel_layout,
+                                       c->sample_rate, nb_samples);
 
     /* create resampler context */
-    if (c->sample_fmt != AV_SAMPLE_FMT_S16) {
-        swr_ctx = swr_alloc();
-        if (!swr_ctx) {
+        ost->swr_ctx = swr_alloc();
+        if (!ost->swr_ctx) {
             fprintf(stderr, "Could not allocate resampler context\n");
             exit(1);
         }
 
         /* set options */
-        av_opt_set_int       (swr_ctx, "in_channel_count",   c->channels,       0);
-        av_opt_set_int       (swr_ctx, "in_sample_rate",     c->sample_rate,    0);
-        av_opt_set_sample_fmt(swr_ctx, "in_sample_fmt",      AV_SAMPLE_FMT_S16, 0);
-        av_opt_set_int       (swr_ctx, "out_channel_count",  c->channels,       0);
-        av_opt_set_int       (swr_ctx, "out_sample_rate",    c->sample_rate,    0);
-        av_opt_set_sample_fmt(swr_ctx, "out_sample_fmt",     c->sample_fmt,     0);
+        av_opt_set_int       (ost->swr_ctx, "in_channel_count",   c->channels,       0);
+        av_opt_set_int       (ost->swr_ctx, "in_sample_rate",     c->sample_rate,    0);
+        av_opt_set_sample_fmt(ost->swr_ctx, "in_sample_fmt",      AV_SAMPLE_FMT_S16, 0);
+        av_opt_set_int       (ost->swr_ctx, "out_channel_count",  c->channels,       0);
+        av_opt_set_int       (ost->swr_ctx, "out_sample_rate",    c->sample_rate,    0);
+        av_opt_set_sample_fmt(ost->swr_ctx, "out_sample_fmt",     c->sample_fmt,     0);
 
         /* initialize the resampling context */
-        if ((ret = swr_init(swr_ctx)) < 0) {
+        if ((ret = swr_init(ost->swr_ctx)) < 0) {
             fprintf(stderr, "Failed to initialize the resampling context\n");
             exit(1);
         }
-
-        ret = av_samples_alloc_array_and_samples(&dst_samples_data, &dst_samples_linesize, c->channels,
-                                                 max_dst_nb_samples, c->sample_fmt, 0);
-        if (ret < 0) {
-            fprintf(stderr, "Could not allocate destination samples\n");
-            exit(1);
-        }
-    } else {
-        dst_samples_data = src_samples_data;
-    }
-    dst_samples_size = av_samples_get_buffer_size(NULL, c->channels, max_dst_nb_samples,
-                                                  c->sample_fmt, 0);
 }
 
 /* Prepare a 16 bit dummy audio frame of 'frame_size' samples and
  * 'nb_channels' channels. */
-static void get_audio_frame(int16_t *samples, int frame_size, int nb_channels)
+static AVFrame *get_audio_frame(OutputStream *ost)
 {
+    AVFrame *frame = ost->tmp_frame;
     int j, i, v;
-    int16_t *q;
+    int16_t *q = (int16_t*)frame->data[0];
 
-    q = samples;
-    for (j = 0; j < frame_size; j++) {
-        v = (int)(sin(t) * 10000);
-        for (i = 0; i < nb_channels; i++)
+    /* check if we want to generate more frames */
+    if (av_compare_ts(ost->next_pts, ost->st->codec->time_base,
+                      STREAM_DURATION, (AVRational){ 1, 1 }) >= 0)
+        return NULL;
+
+    for (j = 0; j <frame->nb_samples; j++) {
+        v = (int)(sin(ost->t) * 10000);
+        for (i = 0; i < ost->st->codec->channels; i++)
             *q++ = v;
-        t     += tincr;
-        tincr += tincr2;
+        ost->t     += ost->tincr;
+        ost->tincr += ost->tincr2;
     }
+
+    frame->pts = ost->next_pts;
+    ost->next_pts  += frame->nb_samples;
+
+    return frame;
 }
 
-static void write_audio_frame(AVFormatContext *oc, AVStream *st, int flush)
+/*
+ * encode one audio frame and send it to the muxer
+ * return 1 when encoding is finished, 0 otherwise
+ */
+static int write_audio_frame(AVFormatContext *oc, OutputStream *ost)
 {
     AVCodecContext *c;
     AVPacket pkt = { 0 }; // data and size must be 0;
-    int got_packet, ret, dst_nb_samples;
+    AVFrame *frame;
+    int ret;
+    int got_packet;
+    int dst_nb_samples;
 
     av_init_packet(&pkt);
-    c = st->codec;
+    c = ost->st->codec;
 
-    if (!flush) {
-        get_audio_frame((int16_t *)src_samples_data[0], src_nb_samples, c->channels);
+    frame = get_audio_frame(ost);
 
+    if (frame) {
         /* convert samples from native format to destination codec format, using the resampler */
-        if (swr_ctx) {
             /* compute destination number of samples */
-            dst_nb_samples = av_rescale_rnd(swr_get_delay(swr_ctx, c->sample_rate) + src_nb_samples,
+            dst_nb_samples = av_rescale_rnd(swr_get_delay(ost->swr_ctx, c->sample_rate) + frame->nb_samples,
                                             c->sample_rate, c->sample_rate, AV_ROUND_UP);
-            if (dst_nb_samples > max_dst_nb_samples) {
-                av_free(dst_samples_data[0]);
-                ret = av_samples_alloc(dst_samples_data, &dst_samples_linesize, c->channels,
-                                       dst_nb_samples, c->sample_fmt, 0);
-                if (ret < 0)
-                    exit(1);
-                max_dst_nb_samples = dst_nb_samples;
-                dst_samples_size = av_samples_get_buffer_size(NULL, c->channels, dst_nb_samples,
-                                                              c->sample_fmt, 0);
-            }
+            av_assert0(dst_nb_samples == frame->nb_samples);
+
+        /* when we pass a frame to the encoder, it may keep a reference to it
+         * internally;
+         * make sure we do not overwrite it here
+         */
+        ret = av_frame_make_writable(ost->frame);
+        if (ret < 0)
+            exit(1);
 
             /* convert to destination format */
-            ret = swr_convert(swr_ctx,
-                              dst_samples_data, dst_nb_samples,
-                              (const uint8_t **)src_samples_data, src_nb_samples);
+            ret = swr_convert(ost->swr_ctx,
+                              ost->frame->data, dst_nb_samples,
+                              (const uint8_t **)frame->data, frame->nb_samples);
             if (ret < 0) {
                 fprintf(stderr, "Error while converting\n");
                 exit(1);
             }
-        } else {
-            dst_nb_samples = src_nb_samples;
-        }
+            frame = ost->frame;
 
-        audio_frame->nb_samples = dst_nb_samples;
-        audio_frame->pts = av_rescale_q(samples_count, (AVRational){1, c->sample_rate}, c->time_base);
-        avcodec_fill_audio_frame(audio_frame, c->channels, c->sample_fmt,
-                                 dst_samples_data[0], dst_samples_size, 0);
-        samples_count += dst_nb_samples;
+        frame->pts = av_rescale_q(ost->samples_count, (AVRational){1, c->sample_rate}, c->time_base);
+        ost->samples_count += dst_nb_samples;
     }
 
-    ret = avcodec_encode_audio2(c, &pkt, flush ? NULL : audio_frame, &got_packet);
+    ret = avcodec_encode_audio2(c, &pkt, frame, &got_packet);
     if (ret < 0) {
         fprintf(stderr, "Error encoding audio frame: %s\n", av_err2str(ret));
         exit(1);
     }
 
-    if (!got_packet) {
-        if (flush)
-            audio_is_eof = 1;
-        return;
+    if (got_packet) {
+        ret = write_frame(oc, &c->time_base, ost->st, &pkt);
+        if (ret < 0) {
+            fprintf(stderr, "Error while writing audio frame: %s\n",
+                    av_err2str(ret));
+            exit(1);
+        }
     }
 
-    ret = write_frame(oc, &c->time_base, st, &pkt);
-    if (ret < 0) {
-        fprintf(stderr, "Error while writing audio frame: %s\n",
-                av_err2str(ret));
-        exit(1);
-    }
-}
-
-static void close_audio(AVFormatContext *oc, AVStream *st)
-{
-    avcodec_close(st->codec);
-    if (dst_samples_data != src_samples_data) {
-        av_free(dst_samples_data[0]);
-        av_free(dst_samples_data);
-    }
-    av_free(src_samples_data[0]);
-    av_free(src_samples_data);
-    av_frame_free(&audio_frame);
+    return (frame || got_packet) ? 0 : 1;
 }
 
 /**************************************************************/
 /* video output */
 
-static AVFrame *frame;
-static AVPicture src_picture, dst_picture;
-static int frame_count;
+static AVFrame *alloc_picture(enum AVPixelFormat pix_fmt, int width, int height)
+{
+    AVFrame *picture;
+    int ret;
 
-static void open_video(AVFormatContext *oc, AVCodec *codec, AVStream *st)
+    picture = av_frame_alloc();
+    if (!picture)
+        return NULL;
+
+    picture->format = pix_fmt;
+    picture->width  = width;
+    picture->height = height;
+
+    /* allocate the buffers for the frame data */
+    ret = av_frame_get_buffer(picture, 32);
+    if (ret < 0) {
+        fprintf(stderr, "Could not allocate frame data.\n");
+        exit(1);
+    }
+
+    return picture;
+}
+
+static void open_video(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
 {
     int ret;
-    AVCodecContext *c = st->codec;
+    AVCodecContext *c = ost->st->codec;
+    AVDictionary *opt = NULL;
+
+    av_dict_copy(&opt, opt_arg, 0);
 
     /* open the codec */
-    ret = avcodec_open2(c, codec, NULL);
+    ret = avcodec_open2(c, codec, &opt);
+    av_dict_free(&opt);
     if (ret < 0) {
         fprintf(stderr, "Could not open video codec: %s\n", av_err2str(ret));
         exit(1);
     }
 
     /* allocate and init a re-usable frame */
-    frame = av_frame_alloc();
-    if (!frame) {
+    ost->frame = alloc_picture(c->pix_fmt, c->width, c->height);
+    if (!ost->frame) {
         fprintf(stderr, "Could not allocate video frame\n");
         exit(1);
     }
-    frame->format = c->pix_fmt;
-    frame->width = c->width;
-    frame->height = c->height;
-
-    /* Allocate the encoded raw picture. */
-    ret = avpicture_alloc(&dst_picture, c->pix_fmt, c->width, c->height);
-    if (ret < 0) {
-        fprintf(stderr, "Could not allocate picture: %s\n", av_err2str(ret));
-        exit(1);
-    }
 
     /* If the output format is not YUV420P, then a temporary YUV420P
      * picture is needed too. It is then converted to the required
      * output format. */
+    ost->tmp_frame = NULL;
     if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
-        ret = avpicture_alloc(&src_picture, AV_PIX_FMT_YUV420P, c->width, c->height);
-        if (ret < 0) {
-            fprintf(stderr, "Could not allocate temporary picture: %s\n",
-                    av_err2str(ret));
+        ost->tmp_frame = alloc_picture(AV_PIX_FMT_YUV420P, c->width, c->height);
+        if (!ost->tmp_frame) {
+            fprintf(stderr, "Could not allocate temporary picture\n");
             exit(1);
         }
     }
-
-    /* copy data and linesize picture pointers to frame */
-    *((AVPicture *)frame) = dst_picture;
 }
 
 /* Prepare a dummy image. */
-static void fill_yuv_image(AVPicture *pict, int frame_index,
+static void fill_yuv_image(AVFrame *pict, int frame_index,
                            int width, int height)
 {
-    int x, y, i;
+    int x, y, i, ret;
+
+    /* when we pass a frame to the encoder, it may keep a reference to it
+     * internally;
+     * make sure we do not overwrite it here
+     */
+    ret = av_frame_make_writable(pict);
+    if (ret < 0)
+        exit(1);
 
     i = frame_index;
 
@@ -408,65 +446,89 @@ static void fill_yuv_image(AVPicture *pict, int frame_index,
     }
 }
 
-static void write_video_frame(AVFormatContext *oc, AVStream *st, int flush)
+static AVFrame *get_video_frame(OutputStream *ost)
 {
-    int ret;
-    static struct SwsContext *sws_ctx;
-    AVCodecContext *c = st->codec;
+    AVCodecContext *c = ost->st->codec;
 
-    if (!flush) {
-        if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
-            /* as we only generate a YUV420P picture, we must convert it
-             * to the codec pixel format if needed */
-            if (!sws_ctx) {
-                sws_ctx = sws_getContext(c->width, c->height, AV_PIX_FMT_YUV420P,
-                                         c->width, c->height, c->pix_fmt,
-                                         sws_flags, NULL, NULL, NULL);
-                if (!sws_ctx) {
-                    fprintf(stderr,
-                            "Could not initialize the conversion context\n");
-                    exit(1);
-                }
+    /* check if we want to generate more frames */
+    if (av_compare_ts(ost->next_pts, ost->st->codec->time_base,
+                      STREAM_DURATION, (AVRational){ 1, 1 }) >= 0)
+        return NULL;
+
+    if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
+        /* as we only generate a YUV420P picture, we must convert it
+         * to the codec pixel format if needed */
+        if (!ost->sws_ctx) {
+            ost->sws_ctx = sws_getContext(c->width, c->height,
+                                          AV_PIX_FMT_YUV420P,
+                                          c->width, c->height,
+                                          c->pix_fmt,
+                                          SCALE_FLAGS, NULL, NULL, NULL);
+            if (!ost->sws_ctx) {
+                fprintf(stderr,
+                        "Could not initialize the conversion context\n");
+                exit(1);
             }
-            fill_yuv_image(&src_picture, frame_count, c->width, c->height);
-            sws_scale(sws_ctx,
-                      (const uint8_t * const *)src_picture.data, src_picture.linesize,
-                      0, c->height, dst_picture.data, dst_picture.linesize);
-        } else {
-            fill_yuv_image(&dst_picture, frame_count, c->width, c->height);
         }
+        fill_yuv_image(ost->tmp_frame, ost->next_pts, c->width, c->height);
+        sws_scale(ost->sws_ctx,
+                  (const uint8_t * const *)ost->tmp_frame->data, ost->tmp_frame->linesize,
+                  0, c->height, ost->frame->data, ost->frame->linesize);
+    } else {
+        fill_yuv_image(ost->frame, ost->next_pts, c->width, c->height);
     }
 
-    if (oc->oformat->flags & AVFMT_RAWPICTURE && !flush) {
-        /* Raw video case - directly store the picture in the packet */
+    ost->frame->pts = ost->next_pts++;
+
+    return ost->frame;
+}
+
+/*
+ * encode one video frame and send it to the muxer
+ * return 1 when encoding is finished, 0 otherwise
+ */
+static int write_video_frame(AVFormatContext *oc, OutputStream *ost)
+{
+    int ret;
+    AVCodecContext *c;
+    AVFrame *frame;
+    int got_packet = 0;
+
+    c = ost->st->codec;
+
+    frame = get_video_frame(ost);
+
+    if (oc->oformat->flags & AVFMT_RAWPICTURE) {
+        /* a hack to avoid data copy with some raw video muxers */
         AVPacket pkt;
         av_init_packet(&pkt);
 
+        if (!frame)
+            return 1;
+
         pkt.flags        |= AV_PKT_FLAG_KEY;
-        pkt.stream_index  = st->index;
-        pkt.data          = dst_picture.data[0];
+        pkt.stream_index  = ost->st->index;
+        pkt.data          = (uint8_t *)frame;
         pkt.size          = sizeof(AVPicture);
 
+        pkt.pts = pkt.dts = frame->pts;
+        av_packet_rescale_ts(&pkt, c->time_base, ost->st->time_base);
+
         ret = av_interleaved_write_frame(oc, &pkt);
     } else {
         AVPacket pkt = { 0 };
-        int got_packet;
         av_init_packet(&pkt);
 
         /* encode the image */
-        frame->pts = frame_count;
-        ret = avcodec_encode_video2(c, &pkt, flush ? NULL : frame, &got_packet);
+        ret = avcodec_encode_video2(c, &pkt, frame, &got_packet);
         if (ret < 0) {
             fprintf(stderr, "Error encoding video frame: %s\n", av_err2str(ret));
             exit(1);
         }
-        /* If size is zero, it means the image was buffered. */
 
         if (got_packet) {
-            ret = write_frame(oc, &c->time_base, st, &pkt);
+            ret = write_frame(oc, &c->time_base, ost->st, &pkt);
         } else {
-            if (flush)
-                video_is_eof = 1;
             ret = 0;
         }
     }
@@ -475,15 +537,17 @@ static void write_video_frame(AVFormatContext *oc, AVStream *st, int flush)
         fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret));
         exit(1);
     }
-    frame_count++;
+
+    return (frame || got_packet) ? 0 : 1;
 }
 
-static void close_video(AVFormatContext *oc, AVStream *st)
+static void close_stream(AVFormatContext *oc, OutputStream *ost)
 {
-    avcodec_close(st->codec);
-    av_free(src_picture.data[0]);
-    av_free(dst_picture.data[0]);
-    av_frame_free(&frame);
+    avcodec_close(ost->st->codec);
+    av_frame_free(&ost->frame);
+    av_frame_free(&ost->tmp_frame);
+    sws_freeContext(ost->sws_ctx);
+    swr_free(&ost->swr_ctx);
 }
 
 /**************************************************************/
@@ -491,18 +555,20 @@ static void close_video(AVFormatContext *oc, AVStream *st)
 
 int main(int argc, char **argv)
 {
+    OutputStream video_st = { 0 }, audio_st = { 0 };
     const char *filename;
     AVOutputFormat *fmt;
     AVFormatContext *oc;
-    AVStream *audio_st, *video_st;
     AVCodec *audio_codec, *video_codec;
-    double audio_time, video_time;
-    int flush, ret;
+    int ret;
+    int have_video = 0, have_audio = 0;
+    int encode_video = 0, encode_audio = 0;
+    AVDictionary *opt = NULL;
 
     /* Initialize libavcodec, and register all codecs and formats. */
     av_register_all();
 
-    if (argc != 2) {
+    if (argc < 2) {
         printf("usage: %s output_file\n"
                "API example program to output a media file with libavformat.\n"
                "This program generates a synthetic audio and video stream, encodes and\n"
@@ -514,6 +580,9 @@ int main(int argc, char **argv)
     }
 
     filename = argv[1];
+    if (argc > 3 && !strcmp(argv[2], "-flags")) {
+        av_dict_set(&opt, argv[2]+1, argv[3], 0);
+    }
 
     /* allocate the output media context */
     avformat_alloc_output_context2(&oc, NULL, NULL, filename);
@@ -528,20 +597,24 @@ int main(int argc, char **argv)
 
     /* Add the audio and video streams using the default format codecs
      * and initialize the codecs. */
-    video_st = NULL;
-    audio_st = NULL;
-
-    if (fmt->video_codec != AV_CODEC_ID_NONE)
-        video_st = add_stream(oc, &video_codec, fmt->video_codec);
-    if (fmt->audio_codec != AV_CODEC_ID_NONE)
-        audio_st = add_stream(oc, &audio_codec, fmt->audio_codec);
+    if (fmt->video_codec != AV_CODEC_ID_NONE) {
+        add_stream(&video_st, oc, &video_codec, fmt->video_codec);
+        have_video = 1;
+        encode_video = 1;
+    }
+    if (fmt->audio_codec != AV_CODEC_ID_NONE) {
+        add_stream(&audio_st, oc, &audio_codec, fmt->audio_codec);
+        have_audio = 1;
+        encode_audio = 1;
+    }
 
     /* Now that all the parameters are set, we can open the audio and
      * video codecs and allocate the necessary encode buffers. */
-    if (video_st)
-        open_video(oc, video_codec, video_st);
-    if (audio_st)
-        open_audio(oc, audio_codec, audio_st);
+    if (have_video)
+        open_video(oc, video_codec, &video_st, opt);
+
+    if (have_audio)
+        open_audio(oc, audio_codec, &audio_st, opt);
 
     av_dump_format(oc, 0, filename, 1);
 
@@ -556,30 +629,21 @@ int main(int argc, char **argv)
     }
 
     /* Write the stream header, if any. */
-    ret = avformat_write_header(oc, NULL);
+    ret = avformat_write_header(oc, &opt);
     if (ret < 0) {
         fprintf(stderr, "Error occurred when opening output file: %s\n",
                 av_err2str(ret));
         return 1;
     }
 
-    flush = 0;
-    while ((video_st && !video_is_eof) || (audio_st && !audio_is_eof)) {
-        /* Compute current audio and video time. */
-        audio_time = (audio_st && !audio_is_eof) ? audio_st->pts.val * av_q2d(audio_st->time_base) : INFINITY;
-        video_time = (video_st && !video_is_eof) ? video_st->pts.val * av_q2d(video_st->time_base) : INFINITY;
-
-        if (!flush &&
-            (!audio_st || audio_time >= STREAM_DURATION) &&
-            (!video_st || video_time >= STREAM_DURATION)) {
-            flush = 1;
-        }
-
-        /* write interleaved audio and video frames */
-        if (audio_st && !audio_is_eof && audio_time <= video_time) {
-            write_audio_frame(oc, audio_st, flush);
-        } else if (video_st && !video_is_eof && video_time < audio_time) {
-            write_video_frame(oc, video_st, flush);
+    while (encode_video || encode_audio) {
+        /* select the stream to encode */
+        if (encode_video &&
+            (!encode_audio || av_compare_ts(video_st.next_pts, video_st.st->codec->time_base,
+                                            audio_st.next_pts, audio_st.st->codec->time_base) <= 0)) {
+            encode_video = !write_video_frame(oc, &video_st);
+        } else {
+            encode_audio = !write_audio_frame(oc, &audio_st);
         }
     }
 
@@ -590,14 +654,14 @@ int main(int argc, char **argv)
     av_write_trailer(oc);
 
     /* Close each codec. */
-    if (video_st)
-        close_video(oc, video_st);
-    if (audio_st)
-        close_audio(oc, audio_st);
+    if (have_video)
+        close_stream(oc, &video_st);
+    if (have_audio)
+        close_stream(oc, &audio_st);
 
     if (!(fmt->flags & AVFMT_NOFILE))
         /* Close the output file. */
-        avio_close(oc->pb);
+        avio_closep(&oc->pb);
 
     /* free the stream */
     avformat_free_context(oc);

doc/examples/qsvdec.c

@@ -0,0 +1,484 @@
+/*
+ * Copyright (c) 2015 Anton Khirnov
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * @file
+ * Intel QSV-accelerated H.264 decoding example.
+ *
+ * @example qsvdec.c
+ * This example shows how to do QSV-accelerated H.264 decoding with output
+ * frames in the VA-API video surfaces.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+
+#include <mfx/mfxvideo.h>
+
+#include <va/va.h>
+#include <va/va_x11.h>
+#include <X11/Xlib.h>
+
+#include "libavformat/avformat.h"
+#include "libavformat/avio.h"
+
+#include "libavcodec/avcodec.h"
+#include "libavcodec/qsv.h"
+
+#include "libavutil/error.h"
+#include "libavutil/mem.h"
+
+typedef struct DecodeContext {
+    mfxSession mfx_session;
+    VADisplay va_dpy;
+
+    VASurfaceID *surfaces;
+    mfxMemId    *surface_ids;
+    int         *surface_used;
+    int       nb_surfaces;
+
+    mfxFrameInfo frame_info;
+} DecodeContext;
+
+static mfxStatus frame_alloc(mfxHDL pthis, mfxFrameAllocRequest *req,
+                             mfxFrameAllocResponse *resp)
+{
+    DecodeContext *decode = pthis;
+    int err, i;
+
+    if (decode->surfaces) {
+        fprintf(stderr, "Multiple allocation requests.\n");
+        return MFX_ERR_MEMORY_ALLOC;
+    }
+    if (!(req->Type & MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET)) {
+        fprintf(stderr, "Unsupported surface type: %d\n", req->Type);
+        return MFX_ERR_UNSUPPORTED;
+    }
+    if (req->Info.BitDepthLuma != 8 || req->Info.BitDepthChroma != 8 ||
+        req->Info.Shift || req->Info.FourCC != MFX_FOURCC_NV12 ||
+        req->Info.ChromaFormat != MFX_CHROMAFORMAT_YUV420) {
+        fprintf(stderr, "Unsupported surface properties.\n");
+        return MFX_ERR_UNSUPPORTED;
+    }
+
+    decode->surfaces     = av_malloc_array (req->NumFrameSuggested, sizeof(*decode->surfaces));
+    decode->surface_ids  = av_malloc_array (req->NumFrameSuggested, sizeof(*decode->surface_ids));
+    decode->surface_used = av_mallocz_array(req->NumFrameSuggested, sizeof(*decode->surface_used));
+    if (!decode->surfaces || !decode->surface_ids || !decode->surface_used)
+        goto fail;
+
+    err = vaCreateSurfaces(decode->va_dpy, VA_RT_FORMAT_YUV420,
+                           req->Info.Width, req->Info.Height,
+                           decode->surfaces, req->NumFrameSuggested,
+                           NULL, 0);
+    if (err != VA_STATUS_SUCCESS) {
+        fprintf(stderr, "Error allocating VA surfaces\n");
+        goto fail;
+    }
+    decode->nb_surfaces = req->NumFrameSuggested;
+
+    for (i = 0; i < decode->nb_surfaces; i++)
+        decode->surface_ids[i] = &decode->surfaces[i];
+
+    resp->mids           = decode->surface_ids;
+    resp->NumFrameActual = decode->nb_surfaces;
+
+    decode->frame_info = req->Info;
+
+    return MFX_ERR_NONE;
+fail:
+    av_freep(&decode->surfaces);
+    av_freep(&decode->surface_ids);
+    av_freep(&decode->surface_used);
+
+    return MFX_ERR_MEMORY_ALLOC;
+}
+
+static mfxStatus frame_free(mfxHDL pthis, mfxFrameAllocResponse *resp)
+{
+    DecodeContext *decode = pthis;
+
+    if (decode->surfaces)
+        vaDestroySurfaces(decode->va_dpy, decode->surfaces, decode->nb_surfaces);
+    av_freep(&decode->surfaces);
+    av_freep(&decode->surface_ids);
+    av_freep(&decode->surface_used);
+    decode->nb_surfaces = 0;
+
+    return MFX_ERR_NONE;
+}
+
+static mfxStatus frame_lock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
+{
+    return MFX_ERR_UNSUPPORTED;
+}
+
+static mfxStatus frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
+{
+    return MFX_ERR_UNSUPPORTED;
+}
+
+static mfxStatus frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
+{
+    *hdl = mid;
+    return MFX_ERR_NONE;
+}
+
+static void free_buffer(void *opaque, uint8_t *data)
+{
+    int *used = opaque;
+    *used = 0;
+    av_freep(&data);
+}
+
+static int get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
+{
+    DecodeContext *decode = avctx->opaque;
+
+    mfxFrameSurface1 *surf;
+    AVBufferRef *surf_buf;
+    int idx;
+
+    for (idx = 0; idx < decode->nb_surfaces; idx++) {
+        if (!decode->surface_used[idx])
+            break;
+    }
+    if (idx == decode->nb_surfaces) {
+        fprintf(stderr, "No free surfaces\n");
+        return AVERROR(ENOMEM);
+    }
+
+    surf = av_mallocz(sizeof(*surf));
+    if (!surf)
+        return AVERROR(ENOMEM);
+    surf_buf = av_buffer_create((uint8_t*)surf, sizeof(*surf), free_buffer,
+                                &decode->surface_used[idx], AV_BUFFER_FLAG_READONLY);
+    if (!surf_buf) {
+        av_freep(&surf);
+        return AVERROR(ENOMEM);
+    }
+
+    surf->Info       = decode->frame_info;
+    surf->Data.MemId = &decode->surfaces[idx];
+
+    frame->buf[0]  = surf_buf;
+    frame->data[3] = (uint8_t*)surf;
+
+    decode->surface_used[idx] = 1;
+
+    return 0;
+}
+
+static int get_format(AVCodecContext *avctx, const enum AVPixelFormat *pix_fmts)
+{
+    while (*pix_fmts != AV_PIX_FMT_NONE) {
+        if (*pix_fmts == AV_PIX_FMT_QSV) {
+            if (!avctx->hwaccel_context) {
+                DecodeContext *decode = avctx->opaque;
+                AVQSVContext *qsv = av_qsv_alloc_context();
+                if (!qsv)
+                    return AV_PIX_FMT_NONE;
+
+                qsv->session   = decode->mfx_session;
+                qsv->iopattern = MFX_IOPATTERN_OUT_VIDEO_MEMORY;
+
+                avctx->hwaccel_context = qsv;
+            }
+
+            return AV_PIX_FMT_QSV;
+        }
+
+        pix_fmts++;
+    }
+
+    fprintf(stderr, "The QSV pixel format not offered in get_format()\n");
+
+    return AV_PIX_FMT_NONE;
+}
+
+static int decode_packet(DecodeContext *decode, AVCodecContext *decoder_ctx,
+                         AVFrame *frame, AVPacket *pkt,
+                         AVIOContext *output_ctx)
+{
+    int ret = 0;
+    int got_frame = 1;
+
+    while (pkt->size > 0 || (!pkt->data && got_frame)) {
+        ret = avcodec_decode_video2(decoder_ctx, frame, &got_frame, pkt);
+        if (ret < 0) {
+            fprintf(stderr, "Error during decoding\n");
+            return ret;
+        }
+
+        pkt->data += ret;
+        pkt->size -= ret;
+
+        /* A real program would do something useful with the decoded frame here.
+         * We just retrieve the raw data and write it to a file, which is rather
+         * useless but pedagogic. */
+        if (got_frame) {
+            mfxFrameSurface1 *surf = (mfxFrameSurface1*)frame->data[3];
+            VASurfaceID    surface = *(VASurfaceID*)surf->Data.MemId;
+
+            VAImageFormat img_fmt = {
+                .fourcc         = VA_FOURCC_NV12,
+                .byte_order     = VA_LSB_FIRST,
+                .bits_per_pixel = 8,
+                .depth          = 8,
+            };
+
+            VAImage img;
+
+            VAStatus err;
+            uint8_t *data;
+            int i, j;
+
+            img.buf      = VA_INVALID_ID;
+            img.image_id = VA_INVALID_ID;
+
+            err = vaCreateImage(decode->va_dpy, &img_fmt,
+                                frame->width, frame->height, &img);
+            if (err != VA_STATUS_SUCCESS) {
+                fprintf(stderr, "Error creating an image: %s\n",
+                        vaErrorStr(err));
+                ret = AVERROR_UNKNOWN;
+                goto fail;
+            }
+
+            err = vaGetImage(decode->va_dpy, surface, 0, 0,
+                             frame->width, frame->height,
+                             img.image_id);
+            if (err != VA_STATUS_SUCCESS) {
+                fprintf(stderr, "Error getting an image: %s\n",
+                        vaErrorStr(err));
+                ret = AVERROR_UNKNOWN;
+                goto fail;
+            }
+
+            err = vaMapBuffer(decode->va_dpy, img.buf, (void**)&data);
+            if (err != VA_STATUS_SUCCESS) {
+                fprintf(stderr, "Error mapping the image buffer: %s\n",
+                        vaErrorStr(err));
+                ret = AVERROR_UNKNOWN;
+                goto fail;
+            }
+
+            for (i = 0; i < img.num_planes; i++)
+                for (j = 0; j < (img.height >> (i > 0)); j++)
+                    avio_write(output_ctx, data + img.offsets[i] + j * img.pitches[i], img.width);
+
+fail:
+            if (img.buf != VA_INVALID_ID)
+                vaUnmapBuffer(decode->va_dpy, img.buf);
+            if (img.image_id != VA_INVALID_ID)
+                vaDestroyImage(decode->va_dpy, img.image_id);
+            av_frame_unref(frame);
+
+            if (ret < 0)
+                return ret;
+        }
+    }
+
+    return 0;
+}
+
+int main(int argc, char **argv)
+{
+    AVFormatContext *input_ctx = NULL;
+    AVStream *video_st = NULL;
+    AVCodecContext *decoder_ctx = NULL;
+    const AVCodec *decoder;
+
+    AVPacket pkt = { 0 };
+    AVFrame *frame = NULL;
+
+    DecodeContext decode = { NULL };
+
+    Display *dpy = NULL;
+    int va_ver_major, va_ver_minor;
+
+    mfxIMPL mfx_impl = MFX_IMPL_AUTO_ANY;
+    mfxVersion mfx_ver = { { 1, 1 } };
+
+    mfxFrameAllocator frame_allocator = {
+        .pthis = &decode,
+        .Alloc = frame_alloc,
+        .Lock  = frame_lock,
+        .Unlock = frame_unlock,
+        .GetHDL = frame_get_hdl,
+        .Free   = frame_free,
+    };
+
+    AVIOContext *output_ctx = NULL;
+
+    int ret, i, err;
+
+    av_register_all();
+
+    if (argc < 3) {
+        fprintf(stderr, "Usage: %s <input file> <output file>\n", argv[0]);
+        return 1;
+    }
+
+    /* open the input file */
+    ret = avformat_open_input(&input_ctx, argv[1], NULL, NULL);
+    if (ret < 0) {
+        fprintf(stderr, "Cannot open input file '%s': ", argv[1]);
+        goto finish;
+    }
+
+    /* find the first H.264 video stream */
+    for (i = 0; i < input_ctx->nb_streams; i++) {
+        AVStream *st = input_ctx->streams[i];
+
+        if (st->codec->codec_id == AV_CODEC_ID_H264 && !video_st)
+            video_st = st;
+        else
+            st->discard = AVDISCARD_ALL;
+    }
+    if (!video_st) {
+        fprintf(stderr, "No H.264 video stream in the input file\n");
+        goto finish;
+    }
+
+    /* initialize VA-API */
+    dpy = XOpenDisplay(NULL);
+    if (!dpy) {
+        fprintf(stderr, "Cannot open the X display\n");
+        goto finish;
+    }
+    decode.va_dpy = vaGetDisplay(dpy);
+    if (!decode.va_dpy) {
+        fprintf(stderr, "Cannot open the VA display\n");
+        goto finish;
+    }
+
+    err = vaInitialize(decode.va_dpy, &va_ver_major, &va_ver_minor);
+    if (err != VA_STATUS_SUCCESS) {
+        fprintf(stderr, "Cannot initialize VA: %s\n", vaErrorStr(err));
+        goto finish;
+    }
+    fprintf(stderr, "Initialized VA v%d.%d\n", va_ver_major, va_ver_minor);
+
+    /* initialize an MFX session */
+    err = MFXInit(mfx_impl, &mfx_ver, &decode.mfx_session);
+    if (err != MFX_ERR_NONE) {
+        fprintf(stderr, "Error initializing an MFX session\n");
+        goto finish;
+    }
+
+    MFXVideoCORE_SetHandle(decode.mfx_session, MFX_HANDLE_VA_DISPLAY, decode.va_dpy);
+    MFXVideoCORE_SetFrameAllocator(decode.mfx_session, &frame_allocator);
+
+    /* initialize the decoder */
+    decoder = avcodec_find_decoder_by_name("h264_qsv");
+    if (!decoder) {
+        fprintf(stderr, "The QSV decoder is not present in libavcodec\n");
+        goto finish;
+    }
+
+    decoder_ctx = avcodec_alloc_context3(decoder);
+    if (!decoder_ctx) {
+        ret = AVERROR(ENOMEM);
+        goto finish;
+    }
+    decoder_ctx->codec_id = AV_CODEC_ID_H264;
+    if (video_st->codec->extradata_size) {
+        decoder_ctx->extradata = av_mallocz(video_st->codec->extradata_size +
+                                            FF_INPUT_BUFFER_PADDING_SIZE);
+        if (!decoder_ctx->extradata) {
+            ret = AVERROR(ENOMEM);
+            goto finish;
+        }
+        memcpy(decoder_ctx->extradata, video_st->codec->extradata,
+               video_st->codec->extradata_size);
+        decoder_ctx->extradata_size = video_st->codec->extradata_size;
+    }
+    decoder_ctx->refcounted_frames = 1;
+
+    decoder_ctx->opaque      = &decode;
+    decoder_ctx->get_buffer2 = get_buffer;
+    decoder_ctx->get_format  = get_format;
+
+    ret = avcodec_open2(decoder_ctx, NULL, NULL);
+    if (ret < 0) {
+        fprintf(stderr, "Error opening the decoder: ");
+        goto finish;
+    }
+
+    /* open the output stream */
+    ret = avio_open(&output_ctx, argv[2], AVIO_FLAG_WRITE);
+    if (ret < 0) {
+        fprintf(stderr, "Error opening the output context: ");
+        goto finish;
+    }
+
+    frame = av_frame_alloc();
+    if (!frame) {
+        ret = AVERROR(ENOMEM);
+        goto finish;
+    }
+
+    /* actual decoding */
+    while (ret >= 0) {
+        ret = av_read_frame(input_ctx, &pkt);
+        if (ret < 0)
+            break;
+
+        if (pkt.stream_index == video_st->index)
+            ret = decode_packet(&decode, decoder_ctx, frame, &pkt, output_ctx);
+
+        av_packet_unref(&pkt);
+    }
+
+    /* flush the decoder */
+    pkt.data = NULL;
+    pkt.size = 0;
+    ret = decode_packet(&decode, decoder_ctx, frame, &pkt, output_ctx);
+
+finish:
+    if (ret < 0) {
+        char buf[1024];
+        av_strerror(ret, buf, sizeof(buf));
+        fprintf(stderr, "%s\n", buf);
+    }
+
+    avformat_close_input(&input_ctx);
+
+    av_frame_free(&frame);
+
+    if (decode.mfx_session)
+        MFXClose(decode.mfx_session);
+    if (decode.va_dpy)
+        vaTerminate(decode.va_dpy);
+    if (dpy)
+        XCloseDisplay(dpy);
+
+    if (decoder_ctx)
+        av_freep(&decoder_ctx->hwaccel_context);
+    avcodec_free_context(&decoder_ctx);
+
+    avio_close(output_ctx);
+
+    return ret;
+}

doc/examples/remuxing.c

@@ -99,6 +99,7 @@ int main(int argc, char **argv)
             fprintf(stderr, "Failed to copy context from input to output stream codec context\n");
             goto end;
         }
+        out_stream->codec->codec_tag = 0;
         if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
             out_stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
     }
@@ -152,7 +153,7 @@ end:
 
     /* close output */
     if (ofmt_ctx && !(ofmt->flags & AVFMT_NOFILE))
-        avio_close(ofmt_ctx->pb);
+        avio_closep(&ofmt_ctx->pb);
     avformat_free_context(ofmt_ctx);
 
     if (ret < 0 && ret != AVERROR_EOF) {

doc/examples/resampling_audio.c

@@ -168,7 +168,7 @@ int main(int argc, char **argv)
         dst_nb_samples = av_rescale_rnd(swr_get_delay(swr_ctx, src_rate) +
                                         src_nb_samples, dst_rate, src_rate, AV_ROUND_UP);
         if (dst_nb_samples > max_dst_nb_samples) {
-            av_free(dst_data[0]);
+            av_freep(&dst_data[0]);
             ret = av_samples_alloc(dst_data, &dst_linesize, dst_nb_channels,
                                    dst_nb_samples, dst_sample_fmt, 1);
             if (ret < 0)
@@ -199,8 +199,7 @@ int main(int argc, char **argv)
             fmt, dst_ch_layout, dst_nb_channels, dst_rate, dst_filename);
 
 end:
-    if (dst_file)
-        fclose(dst_file);
+    fclose(dst_file);
 
     if (src_data)
         av_freep(&src_data[0]);

doc/examples/scaling_video.c

@@ -132,8 +132,7 @@ int main(int argc, char **argv)
            av_get_pix_fmt_name(dst_pix_fmt), dst_w, dst_h, dst_filename);
 
 end:
-    if (dst_file)
-        fclose(dst_file);
+    fclose(dst_file);
     av_freep(&src_data[0]);
     av_freep(&dst_data[0]);
     sws_freeContext(sws_ctx);

doc/examples/transcode_aac.c

@@ -41,18 +41,16 @@
 #include "libswresample/swresample.h"
 
 /** The output bit rate in kbit/s */
-#define OUTPUT_BIT_RATE 48000
+#define OUTPUT_BIT_RATE 96000
 /** The number of output channels */
 #define OUTPUT_CHANNELS 2
-/** The audio sample output format */
-#define OUTPUT_SAMPLE_FORMAT AV_SAMPLE_FMT_S16
 
 /**
  * Convert an error code into a text message.
  * @param error Error code to be converted
  * @return Corresponding error text (not thread-safe)
  */
-static char *const get_error_text(const int error)
+static const char *get_error_text(const int error)
 {
     static char error_buffer[255];
     av_strerror(error, error_buffer, sizeof(error_buffer));
@@ -169,7 +167,7 @@ static int open_output_file(const char *filename,
         goto cleanup;
     }
 
-    /** Save the encoder context for easiert access later. */
+    /** Save the encoder context for easier access later. */
     *output_codec_context = stream->codec;
 
     /**
@@ -179,9 +177,16 @@ static int open_output_file(const char *filename,
     (*output_codec_context)->channels       = OUTPUT_CHANNELS;
     (*output_codec_context)->channel_layout = av_get_default_channel_layout(OUTPUT_CHANNELS);
     (*output_codec_context)->sample_rate    = input_codec_context->sample_rate;
-    (*output_codec_context)->sample_fmt     = AV_SAMPLE_FMT_S16;
+    (*output_codec_context)->sample_fmt     = output_codec->sample_fmts[0];
     (*output_codec_context)->bit_rate       = OUTPUT_BIT_RATE;
 
+    /** Allow the use of the experimental AAC encoder */
+    (*output_codec_context)->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
+
+    /** Set the sample rate for the container. */
+    stream->time_base.den = input_codec_context->sample_rate;
+    stream->time_base.num = 1;
+
     /**
      * Some container formats (like MP4) require global headers to be present
      * Mark the encoder so that it behaves accordingly.
@@ -199,7 +204,7 @@ static int open_output_file(const char *filename,
     return 0;
 
 cleanup:
-    avio_close((*output_format_context)->pb);
+    avio_closep(&(*output_format_context)->pb);
     avformat_free_context(*output_format_context);
     *output_format_context = NULL;
     return error < 0 ? error : AVERROR_EXIT;
@@ -271,10 +276,11 @@ static int init_resampler(AVCodecContext *input_codec_context,
 }
 
 /** Initialize a FIFO buffer for the audio samples to be encoded. */
-static int init_fifo(AVAudioFifo **fifo)
+static int init_fifo(AVAudioFifo **fifo, AVCodecContext *output_codec_context)
 {
     /** Create the FIFO buffer based on the specified output sample format. */
-    if (!(*fifo = av_audio_fifo_alloc(OUTPUT_SAMPLE_FORMAT, OUTPUT_CHANNELS, 1))) {
+    if (!(*fifo = av_audio_fifo_alloc(output_codec_context->sample_fmt,
+                                      output_codec_context->channels, 1))) {
         fprintf(stderr, "Could not allocate FIFO\n");
         return AVERROR(ENOMEM);
     }
@@ -306,7 +312,7 @@ static int decode_audio_frame(AVFrame *frame,
 
     /** Read one audio frame from the input file into a temporary packet. */
     if ((error = av_read_frame(input_format_context, &input_packet)) < 0) {
-        /** If we are the the end of the file, flush the decoder below. */
+        /** If we are at the end of the file, flush the decoder below. */
         if (error == AVERROR_EOF)
             *finished = 1;
         else {
@@ -537,6 +543,9 @@ static int init_output_frame(AVFrame **frame,
     return 0;
 }
 
+/** Global timestamp for the audio frames */
+static int64_t pts = 0;
+
 /** Encode one frame worth of audio to the output file. */
 static int encode_audio_frame(AVFrame *frame,
                               AVFormatContext *output_format_context,
@@ -548,6 +557,12 @@ static int encode_audio_frame(AVFrame *frame,
     int error;
     init_packet(&output_packet);
 
+    /** Set a timestamp based on the sample rate for the container. */
+    if (frame) {
+        frame->pts = pts;
+        pts += frame->nb_samples;
+    }
+
     /**
      * Encode the audio frame and store it in the temporary packet.
      * The output audio stream encoder is used to do this.
@@ -659,7 +674,7 @@ int main(int argc, char **argv)
                        &resample_context))
         goto cleanup;
     /** Initialize the FIFO buffer to store audio samples to be encoded. */
-    if (init_fifo(&fifo))
+    if (init_fifo(&fifo, output_codec_context))
         goto cleanup;
     /** Write the header of the output file container. */
     if (write_output_file_header(output_format_context))
@@ -743,7 +758,7 @@ cleanup:
     if (output_codec_context)
         avcodec_close(output_codec_context);
     if (output_format_context) {
-        avio_close(output_format_context->pb);
+        avio_closep(&output_format_context->pb);
         avformat_free_context(output_format_context);
     }
     if (input_codec_context)

doc/examples/transcoding.c

@@ -0,0 +1,583 @@
+/*
+ * Copyright (c) 2010 Nicolas George
+ * Copyright (c) 2011 Stefano Sabatini
+ * Copyright (c) 2014 Andrey Utkin
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * @file
+ * API example for demuxing, decoding, filtering, encoding and muxing
+ * @example transcoding.c
+ */
+
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libavfilter/avfiltergraph.h>
+#include <libavfilter/avcodec.h>
+#include <libavfilter/buffersink.h>
+#include <libavfilter/buffersrc.h>
+#include <libavutil/opt.h>
+#include <libavutil/pixdesc.h>
+
+static AVFormatContext *ifmt_ctx;
+static AVFormatContext *ofmt_ctx;
+typedef struct FilteringContext {
+    AVFilterContext *buffersink_ctx;
+    AVFilterContext *buffersrc_ctx;
+    AVFilterGraph *filter_graph;
+} FilteringContext;
+static FilteringContext *filter_ctx;
+
+static int open_input_file(const char *filename)
+{
+    int ret;
+    unsigned int i;
+
+    ifmt_ctx = NULL;
+    if ((ret = avformat_open_input(&ifmt_ctx, filename, NULL, NULL)) < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Cannot open input file\n");
+        return ret;
+    }
+
+    if ((ret = avformat_find_stream_info(ifmt_ctx, NULL)) < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
+        return ret;
+    }
+
+    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
+        AVStream *stream;
+        AVCodecContext *codec_ctx;
+        stream = ifmt_ctx->streams[i];
+        codec_ctx = stream->codec;
+        /* Reencode video & audio and remux subtitles etc. */
+        if (codec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
+                || codec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+            /* Open decoder */
+            ret = avcodec_open2(codec_ctx,
+                    avcodec_find_decoder(codec_ctx->codec_id), NULL);
+            if (ret < 0) {
+                av_log(NULL, AV_LOG_ERROR, "Failed to open decoder for stream #%u\n", i);
+                return ret;
+            }
+        }
+    }
+
+    av_dump_format(ifmt_ctx, 0, filename, 0);
+    return 0;
+}
+
+static int open_output_file(const char *filename)
+{
+    AVStream *out_stream;
+    AVStream *in_stream;
+    AVCodecContext *dec_ctx, *enc_ctx;
+    AVCodec *encoder;
+    int ret;
+    unsigned int i;
+
+    ofmt_ctx = NULL;
+    avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, filename);
+    if (!ofmt_ctx) {
+        av_log(NULL, AV_LOG_ERROR, "Could not create output context\n");
+        return AVERROR_UNKNOWN;
+    }
+
+
+    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
+        out_stream = avformat_new_stream(ofmt_ctx, NULL);
+        if (!out_stream) {
+            av_log(NULL, AV_LOG_ERROR, "Failed allocating output stream\n");
+            return AVERROR_UNKNOWN;
+        }
+
+        in_stream = ifmt_ctx->streams[i];
+        dec_ctx = in_stream->codec;
+        enc_ctx = out_stream->codec;
+
+        if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
+                || dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+            /* in this example, we choose transcoding to same codec */
+            encoder = avcodec_find_encoder(dec_ctx->codec_id);
+            if (!encoder) {
+                av_log(NULL, AV_LOG_FATAL, "Neccessary encoder not found\n");
+                return AVERROR_INVALIDDATA;
+            }
+
+            /* In this example, we transcode to same properties (picture size,
+             * sample rate etc.). These properties can be changed for output
+             * streams easily using filters */
+            if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+                enc_ctx->height = dec_ctx->height;
+                enc_ctx->width = dec_ctx->width;
+                enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
+                /* take first format from list of supported formats */
+                enc_ctx->pix_fmt = encoder->pix_fmts[0];
+                /* video time_base can be set to whatever is handy and supported by encoder */
+                enc_ctx->time_base = dec_ctx->time_base;
+            } else {
+                enc_ctx->sample_rate = dec_ctx->sample_rate;
+                enc_ctx->channel_layout = dec_ctx->channel_layout;
+                enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
+                /* take first format from list of supported formats */
+                enc_ctx->sample_fmt = encoder->sample_fmts[0];
+                enc_ctx->time_base = (AVRational){1, enc_ctx->sample_rate};
+            }
+
+            /* Third parameter can be used to pass settings to encoder */
+            ret = avcodec_open2(enc_ctx, encoder, NULL);
+            if (ret < 0) {
+                av_log(NULL, AV_LOG_ERROR, "Cannot open video encoder for stream #%u\n", i);
+                return ret;
+            }
+        } else if (dec_ctx->codec_type == AVMEDIA_TYPE_UNKNOWN) {
+            av_log(NULL, AV_LOG_FATAL, "Elementary stream #%d is of unknown type, cannot proceed\n", i);
+            return AVERROR_INVALIDDATA;
+        } else {
+            /* if this stream must be remuxed */
+            ret = avcodec_copy_context(ofmt_ctx->streams[i]->codec,
+                    ifmt_ctx->streams[i]->codec);
+            if (ret < 0) {
+                av_log(NULL, AV_LOG_ERROR, "Copying stream context failed\n");
+                return ret;
+            }
+        }
+
+        if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
+            enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
+
+    }
+    av_dump_format(ofmt_ctx, 0, filename, 1);
+
+    if (!(ofmt_ctx->oformat->flags & AVFMT_NOFILE)) {
+        ret = avio_open(&ofmt_ctx->pb, filename, AVIO_FLAG_WRITE);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Could not open output file '%s'", filename);
+            return ret;
+        }
+    }
+
+    /* init muxer, write output file header */
+    ret = avformat_write_header(ofmt_ctx, NULL);
+    if (ret < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Error occurred when opening output file\n");
+        return ret;
+    }
+
+    return 0;
+}
+
+static int init_filter(FilteringContext* fctx, AVCodecContext *dec_ctx,
+        AVCodecContext *enc_ctx, const char *filter_spec)
+{
+    char args[512];
+    int ret = 0;
+    AVFilter *buffersrc = NULL;
+    AVFilter *buffersink = NULL;
+    AVFilterContext *buffersrc_ctx = NULL;
+    AVFilterContext *buffersink_ctx = NULL;
+    AVFilterInOut *outputs = avfilter_inout_alloc();
+    AVFilterInOut *inputs  = avfilter_inout_alloc();
+    AVFilterGraph *filter_graph = avfilter_graph_alloc();
+
+    if (!outputs || !inputs || !filter_graph) {
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
+        buffersrc = avfilter_get_by_name("buffer");
+        buffersink = avfilter_get_by_name("buffersink");
+        if (!buffersrc || !buffersink) {
+            av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
+            ret = AVERROR_UNKNOWN;
+            goto end;
+        }
+
+        snprintf(args, sizeof(args),
+                "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
+                dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
+                dec_ctx->time_base.num, dec_ctx->time_base.den,
+                dec_ctx->sample_aspect_ratio.num,
+                dec_ctx->sample_aspect_ratio.den);
+
+        ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
+                args, NULL, filter_graph);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
+            goto end;
+        }
+
+        ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
+                NULL, NULL, filter_graph);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
+            goto end;
+        }
+
+        ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
+                (uint8_t*)&enc_ctx->pix_fmt, sizeof(enc_ctx->pix_fmt),
+                AV_OPT_SEARCH_CHILDREN);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Cannot set output pixel format\n");
+            goto end;
+        }
+    } else if (dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+        buffersrc = avfilter_get_by_name("abuffer");
+        buffersink = avfilter_get_by_name("abuffersink");
+        if (!buffersrc || !buffersink) {
+            av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
+            ret = AVERROR_UNKNOWN;
+            goto end;
+        }
+
+        if (!dec_ctx->channel_layout)
+            dec_ctx->channel_layout =
+                av_get_default_channel_layout(dec_ctx->channels);
+        snprintf(args, sizeof(args),
+                "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%"PRIx64,
+                dec_ctx->time_base.num, dec_ctx->time_base.den, dec_ctx->sample_rate,
+                av_get_sample_fmt_name(dec_ctx->sample_fmt),
+                dec_ctx->channel_layout);
+        ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
+                args, NULL, filter_graph);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer source\n");
+            goto end;
+        }
+
+        ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
+                NULL, NULL, filter_graph);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
+            goto end;
+        }
+
+        ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
+                (uint8_t*)&enc_ctx->sample_fmt, sizeof(enc_ctx->sample_fmt),
+                AV_OPT_SEARCH_CHILDREN);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
+            goto end;
+        }
+
+        ret = av_opt_set_bin(buffersink_ctx, "channel_layouts",
+                (uint8_t*)&enc_ctx->channel_layout,
+                sizeof(enc_ctx->channel_layout), AV_OPT_SEARCH_CHILDREN);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
+            goto end;
+        }
+
+        ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
+                (uint8_t*)&enc_ctx->sample_rate, sizeof(enc_ctx->sample_rate),
+                AV_OPT_SEARCH_CHILDREN);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
+            goto end;
+        }
+    } else {
+        ret = AVERROR_UNKNOWN;
+        goto end;
+    }
+
+    /* Endpoints for the filter graph. */
+    outputs->name       = av_strdup("in");
+    outputs->filter_ctx = buffersrc_ctx;
+    outputs->pad_idx    = 0;
+    outputs->next       = NULL;
+
+    inputs->name       = av_strdup("out");
+    inputs->filter_ctx = buffersink_ctx;
+    inputs->pad_idx    = 0;
+    inputs->next       = NULL;
+
+    if (!outputs->name || !inputs->name) {
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    if ((ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
+                    &inputs, &outputs, NULL)) < 0)
+        goto end;
+
+    if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
+        goto end;
+
+    /* Fill FilteringContext */
+    fctx->buffersrc_ctx = buffersrc_ctx;
+    fctx->buffersink_ctx = buffersink_ctx;
+    fctx->filter_graph = filter_graph;
+
+end:
+    avfilter_inout_free(&inputs);
+    avfilter_inout_free(&outputs);
+
+    return ret;
+}
+
+static int init_filters(void)
+{
+    const char *filter_spec;
+    unsigned int i;
+    int ret;
+    filter_ctx = av_malloc_array(ifmt_ctx->nb_streams, sizeof(*filter_ctx));
+    if (!filter_ctx)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
+        filter_ctx[i].buffersrc_ctx  = NULL;
+        filter_ctx[i].buffersink_ctx = NULL;
+        filter_ctx[i].filter_graph   = NULL;
+        if (!(ifmt_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO
+                || ifmt_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO))
+            continue;
+
+
+        if (ifmt_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
+            filter_spec = "null"; /* passthrough (dummy) filter for video */
+        else
+            filter_spec = "anull"; /* passthrough (dummy) filter for audio */
+        ret = init_filter(&filter_ctx[i], ifmt_ctx->streams[i]->codec,
+                ofmt_ctx->streams[i]->codec, filter_spec);
+        if (ret)
+            return ret;
+    }
+    return 0;
+}
+
+static int encode_write_frame(AVFrame *filt_frame, unsigned int stream_index, int *got_frame) {
+    int ret;
+    int got_frame_local;
+    AVPacket enc_pkt;
+    int (*enc_func)(AVCodecContext *, AVPacket *, const AVFrame *, int *) =
+        (ifmt_ctx->streams[stream_index]->codec->codec_type ==
+         AVMEDIA_TYPE_VIDEO) ? avcodec_encode_video2 : avcodec_encode_audio2;
+
+    if (!got_frame)
+        got_frame = &got_frame_local;
+
+    av_log(NULL, AV_LOG_INFO, "Encoding frame\n");
+    /* encode filtered frame */
+    enc_pkt.data = NULL;
+    enc_pkt.size = 0;
+    av_init_packet(&enc_pkt);
+    ret = enc_func(ofmt_ctx->streams[stream_index]->codec, &enc_pkt,
+            filt_frame, got_frame);
+    av_frame_free(&filt_frame);
+    if (ret < 0)
+        return ret;
+    if (!(*got_frame))
+        return 0;
+
+    /* prepare packet for muxing */
+    enc_pkt.stream_index = stream_index;
+    av_packet_rescale_ts(&enc_pkt,
+                         ofmt_ctx->streams[stream_index]->codec->time_base,
+                         ofmt_ctx->streams[stream_index]->time_base);
+
+    av_log(NULL, AV_LOG_DEBUG, "Muxing frame\n");
+    /* mux encoded frame */
+    ret = av_interleaved_write_frame(ofmt_ctx, &enc_pkt);
+    return ret;
+}
+
+static int filter_encode_write_frame(AVFrame *frame, unsigned int stream_index)
+{
+    int ret;
+    AVFrame *filt_frame;
+
+    av_log(NULL, AV_LOG_INFO, "Pushing decoded frame to filters\n");
+    /* push the decoded frame into the filtergraph */
+    ret = av_buffersrc_add_frame_flags(filter_ctx[stream_index].buffersrc_ctx,
+            frame, 0);
+    if (ret < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
+        return ret;
+    }
+
+    /* pull filtered frames from the filtergraph */
+    while (1) {
+        filt_frame = av_frame_alloc();
+        if (!filt_frame) {
+            ret = AVERROR(ENOMEM);
+            break;
+        }
+        av_log(NULL, AV_LOG_INFO, "Pulling filtered frame from filters\n");
+        ret = av_buffersink_get_frame(filter_ctx[stream_index].buffersink_ctx,
+                filt_frame);
+        if (ret < 0) {
+            /* if no more frames for output - returns AVERROR(EAGAIN)
+             * if flushed and no more frames for output - returns AVERROR_EOF
+             * rewrite retcode to 0 to show it as normal procedure completion
+             */
+            if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
+                ret = 0;
+            av_frame_free(&filt_frame);
+            break;
+        }
+
+        filt_frame->pict_type = AV_PICTURE_TYPE_NONE;
+        ret = encode_write_frame(filt_frame, stream_index, NULL);
+        if (ret < 0)
+            break;
+    }
+
+    return ret;
+}
+
+static int flush_encoder(unsigned int stream_index)
+{
+    int ret;
+    int got_frame;
+
+    if (!(ofmt_ctx->streams[stream_index]->codec->codec->capabilities &
+                CODEC_CAP_DELAY))
+        return 0;
+
+    while (1) {
+        av_log(NULL, AV_LOG_INFO, "Flushing stream #%u encoder\n", stream_index);
+        ret = encode_write_frame(NULL, stream_index, &got_frame);
+        if (ret < 0)
+            break;
+        if (!got_frame)
+            return 0;
+    }
+    return ret;
+}
+
+int main(int argc, char **argv)
+{
+    int ret;
+    AVPacket packet = { .data = NULL, .size = 0 };
+    AVFrame *frame = NULL;
+    enum AVMediaType type;
+    unsigned int stream_index;
+    unsigned int i;
+    int got_frame;
+    int (*dec_func)(AVCodecContext *, AVFrame *, int *, const AVPacket *);
+
+    if (argc != 3) {
+        av_log(NULL, AV_LOG_ERROR, "Usage: %s <input file> <output file>\n", argv[0]);
+        return 1;
+    }
+
+    av_register_all();
+    avfilter_register_all();
+
+    if ((ret = open_input_file(argv[1])) < 0)
+        goto end;
+    if ((ret = open_output_file(argv[2])) < 0)
+        goto end;
+    if ((ret = init_filters()) < 0)
+        goto end;
+
+    /* read all packets */
+    while (1) {
+        if ((ret = av_read_frame(ifmt_ctx, &packet)) < 0)
+            break;
+        stream_index = packet.stream_index;
+        type = ifmt_ctx->streams[packet.stream_index]->codec->codec_type;
+        av_log(NULL, AV_LOG_DEBUG, "Demuxer gave frame of stream_index %u\n",
+                stream_index);
+
+        if (filter_ctx[stream_index].filter_graph) {
+            av_log(NULL, AV_LOG_DEBUG, "Going to reencode&filter the frame\n");
+            frame = av_frame_alloc();
+            if (!frame) {
+                ret = AVERROR(ENOMEM);
+                break;
+            }
+            av_packet_rescale_ts(&packet,
+                                 ifmt_ctx->streams[stream_index]->time_base,
+                                 ifmt_ctx->streams[stream_index]->codec->time_base);
+            dec_func = (type == AVMEDIA_TYPE_VIDEO) ? avcodec_decode_video2 :
+                avcodec_decode_audio4;
+            ret = dec_func(ifmt_ctx->streams[stream_index]->codec, frame,
+                    &got_frame, &packet);
+            if (ret < 0) {
+                av_frame_free(&frame);
+                av_log(NULL, AV_LOG_ERROR, "Decoding failed\n");
+                break;
+            }
+
+            if (got_frame) {
+                frame->pts = av_frame_get_best_effort_timestamp(frame);
+                ret = filter_encode_write_frame(frame, stream_index);
+                av_frame_free(&frame);
+                if (ret < 0)
+                    goto end;
+            } else {
+                av_frame_free(&frame);
+            }
+        } else {
+            /* remux this frame without reencoding */
+            av_packet_rescale_ts(&packet,
+                                 ifmt_ctx->streams[stream_index]->time_base,
+                                 ofmt_ctx->streams[stream_index]->time_base);
+
+            ret = av_interleaved_write_frame(ofmt_ctx, &packet);
+            if (ret < 0)
+                goto end;
+        }
+        av_free_packet(&packet);
+    }
+
+    /* flush filters and encoders */
+    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
+        /* flush filter */
+        if (!filter_ctx[i].filter_graph)
+            continue;
+        ret = filter_encode_write_frame(NULL, i);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Flushing filter failed\n");
+            goto end;
+        }
+
+        /* flush encoder */
+        ret = flush_encoder(i);
+        if (ret < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Flushing encoder failed\n");
+            goto end;
+        }
+    }
+
+    av_write_trailer(ofmt_ctx);
+end:
+    av_free_packet(&packet);
+    av_frame_free(&frame);
+    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
+        avcodec_close(ifmt_ctx->streams[i]->codec);
+        if (ofmt_ctx && ofmt_ctx->nb_streams > i && ofmt_ctx->streams[i] && ofmt_ctx->streams[i]->codec)
+            avcodec_close(ofmt_ctx->streams[i]->codec);
+        if (filter_ctx && filter_ctx[i].filter_graph)
+            avfilter_graph_free(&filter_ctx[i].filter_graph);
+    }
+    av_free(filter_ctx);
+    avformat_close_input(&ifmt_ctx);
+    if (ofmt_ctx && !(ofmt_ctx->oformat->flags & AVFMT_NOFILE))
+        avio_closep(&ofmt_ctx->pb);
+    avformat_free_context(ofmt_ctx);
+
+    if (ret < 0)
+        av_log(NULL, AV_LOG_ERROR, "Error occurred: %s\n", av_err2str(ret));
+
+    return ret ? 1 : 0;
+}

doc/faq.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg FAQ
 @titlepage
@@ -90,6 +91,56 @@ To build FFmpeg, you need to install the development package. It is usually
 called @file{libfoo-dev} or @file{libfoo-devel}. You can remove it after the
 build is finished, but be sure to keep the main package.
 
+@section How do I make @command{pkg-config} find my libraries?
+
+Somewhere along with your libraries, there is a @file{.pc} file (or several)
+in a @file{pkgconfig} directory. You need to set environment variables to
+point @command{pkg-config} to these files.
+
+If you need to @emph{add} directories to @command{pkg-config}'s search list
+(typical use case: library installed separately), add it to
+@code{$PKG_CONFIG_PATH}:
+
+@example
+export PKG_CONFIG_PATH=/opt/x264/lib/pkgconfig:/opt/opus/lib/pkgconfig
+@end example
+
+If you need to @emph{replace} @command{pkg-config}'s search list
+(typical use case: cross-compiling), set it in
+@code{$PKG_CONFIG_LIBDIR}:
+
+@example
+export PKG_CONFIG_LIBDIR=/home/me/cross/usr/lib/pkgconfig:/home/me/cross/usr/local/lib/pkgconfig
+@end example
+
+If you need to know the library's internal dependencies (typical use: static
+linking), add the @code{--static} option to @command{pkg-config}:
+
+@example
+./configure --pkg-config-flags=--static
+@end example
+
+@section How do I use @command{pkg-config} when cross-compiling?
+
+The best way is to install @command{pkg-config} in your cross-compilation
+environment. It will automatically use the cross-compilation libraries.
+
+You can also use @command{pkg-config} from the host environment by
+specifying explicitly @code{--pkg-config=pkg-config} to @command{configure}.
+In that case, you must point @command{pkg-config} to the correct directories
+using the @code{PKG_CONFIG_LIBDIR}, as explained in the previous entry.
+
+As an intermediate solution, you can place in your cross-compilation
+environment a script that calls the host @command{pkg-config} with
+@code{PKG_CONFIG_LIBDIR} set. That script can look like that:
+
+@example
+#!/bin/sh
+PKG_CONFIG_LIBDIR=/path/to/cross/lib/pkgconfig
+export PKG_CONFIG_LIBDIR
+exec /usr/bin/pkg-config "$@@"
+@end example
+
 @chapter Usage
 
 @section ffmpeg does not work; what is wrong?
@@ -392,7 +443,7 @@ VOB and a few other formats do not have a global header that describes
 everything present in the file. Instead, applications are supposed to scan
 the file to see what it contains. Since VOB files are frequently large, only
 the beginning is scanned. If the subtitles happen only later in the file,
-they will not be initally detected.
+they will not be initially detected.
 
 Some applications, including the @code{ffmpeg} command-line tool, can only
 work with streams that were detected during the initial scan; streams that
@@ -416,6 +467,40 @@ point acceptable for your tastes. The most common options to do that are
 @option{-qscale} and @option{-qmax}, but you should peruse the documentation
 of the encoder you chose.
 
+@section I have a stretched video, why does scaling does not fix it?
+
+A lot of video codecs and formats can store the @emph{aspect ratio} of the
+video: this is the ratio between the width and the height of either the full
+image (DAR, display aspect ratio) or individual pixels (SAR, sample aspect
+ratio). For example, EGA screens at resolution 640×350 had 4:3 DAR and 35:48
+SAR.
+
+Most still image processing work with square pixels, i.e. 1:1 SAR, but a lot
+of video standards, especially from the analogic-numeric transition era, use
+non-square pixels.
+
+Most processing filters in FFmpeg handle the aspect ratio to avoid
+stretching the image: cropping adjusts the DAR to keep the SAR constant,
+scaling adjusts the SAR to keep the DAR constant.
+
+If you want to stretch, or “unstretch”, the image, you need to override the
+information with the
+@url{http://ffmpeg.org/ffmpeg-filters.html#setdar_002c-setsar, @code{setdar or setsar filters}}.
+
+Do not forget to examine carefully the original video to check whether the
+stretching comes from the image or from the aspect ratio information.
+
+For example, to fix a badly encoded EGA capture, use the following commands,
+either the first one to upscale to square pixels or the second one to set
+the correct aspect ratio or the third one to avoid transcoding (may not work
+depending on the format / codec / player / phase of the moon):
+
+@example
+ffmpeg -i ega_screen.nut -vf scale=640:480,setsar=1 ega_screen_scaled.nut
+ffmpeg -i ega_screen.nut -vf setdar=4/3 ega_screen_anamorphic.nut
+ffmpeg -i ega_screen.nut -aspect 4/3 -c copy ega_screen_overridden.nut
+@end example
+
 @chapter Development
 
 @section Are there examples illustrating how to use the FFmpeg libraries, particularly libavcodec and libavformat?

doc/fate.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Automated Testing Environment
 @titlepage

doc/ffmpeg-bitstream-filters.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Bitstream Filters Documentation
 @titlepage

doc/ffmpeg-codecs.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Codecs Documentation
 @titlepage

doc/ffmpeg-devices.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Devices Documentation
 @titlepage

doc/ffmpeg-filters.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Filters Documentation
 @titlepage

doc/ffmpeg-formats.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Formats Documentation
 @titlepage

doc/ffmpeg-protocols.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Protocols Documentation
 @titlepage

doc/ffmpeg-resampler.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Resampler Documentation
 @titlepage
@@ -14,7 +15,7 @@
 
 The FFmpeg resampler provides a high-level interface to the
 libswresample library audio resampling utilities. In particular it
-allows to perform audio resampling, audio channel layout rematrixing,
+allows one to perform audio resampling, audio channel layout rematrixing,
 and convert audio format and packing layout.
 
 @c man end DESCRIPTION

doc/ffmpeg-scaler.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Scaler Documentation
 @titlepage
@@ -13,7 +14,7 @@
 @c man begin DESCRIPTION
 
 The FFmpeg rescaler provides a high-level interface to the libswscale
-library image conversion utilities. In particular it allows to perform
+library image conversion utilities. In particular it allows one to perform
 image rescaling and pixel format conversion.
 
 @c man end DESCRIPTION

doc/ffmpeg-utils.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle FFmpeg Utilities Documentation
 @titlepage

doc/ffmpeg.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle ffmpeg Documentation
 @titlepage
@@ -90,7 +91,8 @@ the following diagram:
                                       |         |
                                       | decoded |
                                       | frames  |
- ________             ______________  |_________|
+                                      |_________|
+ ________             ______________       |
 |        |           |              |      |
 | output | <-------- | encoded data | <----+
 | file   |   muxer   | packets      |   encoder
@@ -123,11 +125,16 @@ the same type. In the above diagram they can be represented by simply inserting
 an additional step between decoding and encoding:
 
 @example
- _________               __________              ______________
-|         |  simple     |          |            |              |
-| decoded |  fltrgrph   | filtered |  encoder   | encoded data |
-| frames  | ----------> | frames   | ---------> | packets      |
-|_________|             |__________|            |______________|
+ _________                        ______________
+|         |                      |              |
+| decoded |                      | encoded data |
+| frames  |\                   _ | packets      |
+|_________| \                  /||______________|
+             \   __________   /
+  simple     _\||          | /  encoder
+  filtergraph   | filtered |/
+                | frames   |
+                |__________|
 
 @end example
 
@@ -266,8 +273,13 @@ ffmpeg -i INPUT -map 0 -c copy -c:v:1 libx264 -c:a:137 libvorbis OUTPUT
 will copy all the streams except the second video, which will be encoded with
 libx264, and the 138th audio, which will be encoded with libvorbis.
 
-@item -t @var{duration} (@emph{output})
-Stop writing the output after its duration reaches @var{duration}.
+@item -t @var{duration} (@emph{input/output})
+When used as an input option (before @code{-i}), limit the @var{duration} of
+data read from the input file.
+
+When used as an output option (before an output filename), stop writing the
+output after its duration reaches @var{duration}.
+
 @var{duration} may be a number in seconds, or in @code{hh:mm:ss[.xxx]} form.
 
 -to and -t are mutually exclusive and -t has priority.
@@ -328,7 +340,7 @@ ffmpeg -i in.avi -metadata title="my title" out.flv
 
 To set the language of the first audio stream:
 @example
-ffmpeg -i INPUT -metadata:s:a:1 language=eng OUTPUT
+ffmpeg -i INPUT -metadata:s:a:0 language=eng OUTPUT
 @end example
 
 @item -target @var{type} (@emph{output})
@@ -349,7 +361,7 @@ ffmpeg -i myfile.avi -target vcd -bf 2 /tmp/vcd.mpg
 @end example
 
 @item -dframes @var{number} (@emph{output})
-Set the number of data frames to record. This is an alias for @code{-frames:d}.
+Set the number of data frames to output. This is an alias for @code{-frames:d}.
 
 @item -frames[:@var{stream_specifier}] @var{framecount} (@emph{output,per-stream})
 Stop writing to the stream after @var{framecount} frames.
@@ -456,12 +468,15 @@ attachments.
 
 @table @option
 @item -vframes @var{number} (@emph{output})
-Set the number of video frames to record. This is an alias for @code{-frames:v}.
+Set the number of video frames to output. This is an alias for @code{-frames:v}.
 @item -r[:@var{stream_specifier}] @var{fps} (@emph{input/output,per-stream})
 Set frame rate (Hz value, fraction or abbreviation).
 
 As an input option, ignore any timestamps stored in the file and instead
 generate timestamps assuming constant frame rate @var{fps}.
+This is not the same as the @option{-framerate} option used for some input formats
+like image2 or v4l2 (it used to be the same in older versions of FFmpeg).
+If in doubt use @option{-framerate} instead of the input option @option{-r}.
 
 As an output option, duplicate or drop input frames to achieve constant output
 frame rate @var{fps}.
@@ -523,7 +538,7 @@ filter the stream.
 This is an alias for @code{-filter:v}, see the @ref{filter_option,,-filter option}.
 @end table
 
-@section Advanced Video Options
+@section Advanced Video options
 
 @table @option
 @item -pix_fmt[:@var{stream_specifier}] @var{format} (@emph{input/output,per-stream})
@@ -637,8 +652,14 @@ Do not use any hardware acceleration (the default).
 @item auto
 Automatically select the hardware acceleration method.
 
+@item vda
+Use Apple VDA hardware acceleration.
+
 @item vdpau
 Use VDPAU (Video Decode and Presentation API for Unix) hardware acceleration.
+
+@item dxva2
+Use DXVA2 (DirectX Video Acceleration) hardware acceleration.
 @end table
 
 This option has no effect if the selected hwaccel is not available or not
@@ -661,6 +682,10 @@ method chosen.
 @item vdpau
 For VDPAU, this option specifies the X11 display/screen to use. If this option
 is not specified, the value of the @var{DISPLAY} environment variable is used
+
+@item dxva2
+For DXVA2, this option should contain the number of the display adapter to use.
+If this option is not specified, the default adapter is used.
 @end table
 @end table
 
@@ -668,7 +693,7 @@ is not specified, the value of the @var{DISPLAY} environment variable is used
 
 @table @option
 @item -aframes @var{number} (@emph{output})
-Set the number of audio frames to record. This is an alias for @code{-frames:a}.
+Set the number of audio frames to output. This is an alias for @code{-frames:a}.
 @item -ar[:@var{stream_specifier}] @var{freq} (@emph{input/output,per-stream})
 Set the audio sampling frequency. For output streams it is set by
 default to the frequency of the corresponding input stream. For input
@@ -696,7 +721,7 @@ filter the stream.
 This is an alias for @code{-filter:a}, see the @ref{filter_option,,-filter option}.
 @end table
 
-@section Advanced Audio options:
+@section Advanced Audio options
 
 @table @option
 @item -atag @var{fourcc/tag} (@emph{output})
@@ -711,7 +736,7 @@ stereo but not 6 channels as 5.1. The default is to always try to guess. Use
 0 to disable all guessing.
 @end table
 
-@section Subtitle options:
+@section Subtitle options
 
 @table @option
 @item -scodec @var{codec} (@emph{input/output})
@@ -722,7 +747,7 @@ Disable subtitle recording.
 Deprecated, see -bsf
 @end table
 
-@section Advanced Subtitle options:
+@section Advanced Subtitle options
 
 @table @option
 
@@ -800,6 +825,11 @@ To map all the streams except the second audio, use negative mappings
 ffmpeg -i INPUT -map 0 -map -0:a:1 OUTPUT
 @end example
 
+To pick the English audio stream:
+@example
+ffmpeg -i INPUT -map 0:m:language:eng OUTPUT
+@end example
+
 Note that using this option disables the default mappings for this output file.
 
 @item -map_channel [@var{input_file_id}.@var{stream_specifier}.@var{channel_id}|-1][:@var{output_file_id}.@var{stream_specifier}]
@@ -965,6 +995,13 @@ With -map you can select from which stream the timestamps should be
 taken. You can leave either video or audio unchanged and sync the
 remaining stream(s) to the unchanged one.
 
+@item -frame_drop_threshold @var{parameter}
+Frame drop threshold, which specifies how much behind video frames can
+be before they are dropped. In frame rate units, so 1.0 is one frame.
+The default is -1.1. One possible usecase is to avoid framedrops in case
+of noisy timestamps or to increase frame drop precision in case of exact
+timestamps.
+
 @item -async @var{samples_per_second}
 Audio sync method. "Stretches/squeezes" the audio stream to match the timestamps,
 the parameter is the maximum samples per second by which the audio is changed.
@@ -987,6 +1024,12 @@ processing (e.g. in case the format option @option{avoid_negative_ts}
 is enabled) the output timestamps may mismatch with the input
 timestamps even when this option is selected.
 
+@item -start_at_zero
+When used with @option{copyts}, shift input timestamps so they start at zero.
+
+This means that using e.g. @code{-ss 50} will make output timestamps start at
+50 seconds, regardless of what timestamp the input file started at.
+
 @item -copytb @var{mode}
 Specify how to set the encoder timebase when stream copying.  @var{mode} is an
 integer numeric value, and can assume one of the following values:
@@ -1115,6 +1158,12 @@ This option enables or disables accurate seeking in input files with the
 transcoding. Use @option{-noaccurate_seek} to disable it, which may be useful
 e.g. when copying some streams and transcoding the others.
 
+@item -thread_message_queue @var{size} (@emph{input})
+This option sets the maximum number of queued packets when reading from the
+file or device. With low latency / high rate live streams, packets may be
+discarded if they are not read in a timely manner; raising this value can
+avoid it.
+
 @item -override_ffserver (@emph{global})
 Overrides the input specifications from @command{ffserver}. Using this
 option you can map any input stream to @command{ffserver} and control
@@ -1125,6 +1174,35 @@ requested by @command{ffserver}.
 The option is intended for cases where features are needed that cannot be
 specified to @command{ffserver} but can be to @command{ffmpeg}.
 
+@item -sdp_file @var{file} (@emph{global})
+Print sdp information to @var{file}.
+This allows dumping sdp information when at least one output isn't an
+rtp stream.
+
+@item -discard (@emph{input})
+Allows discarding specific streams or frames of streams at the demuxer.
+Not all demuxers support this.
+
+@table @option
+@item none
+Discard no frame.
+
+@item default
+Default, which discards no frames.
+
+@item noref
+Discard all non-reference frames.
+
+@item bidir
+Discard all bidirectional frames.
+
+@item nokey
+Discard all frames excepts keyframes.
+
+@item all
+Discard all frames.
+@end table
+
 @end table
 
 As a special exception, you can use a bitmap subtitle stream as input: it
@@ -1150,7 +1228,10 @@ awkward to specify on the command line. Lines starting with the hash
 ('#') character are ignored and are used to provide comments. Check
 the @file{presets} directory in the FFmpeg source tree for examples.
 
-Preset files are specified with the @code{vpre}, @code{apre},
+There are two types of preset files: ffpreset and avpreset files.
+
+@subsection ffpreset files
+ffpreset files are specified with the @code{vpre}, @code{apre},
 @code{spre}, and @code{fpre} options. The @code{fpre} option takes the
 filename of the preset instead of a preset name as input and can be
 used for any kind of codec. For the @code{vpre}, @code{apre}, and
@@ -1175,6 +1256,26 @@ directories, where @var{codec_name} is the name of the codec to which
 the preset file options will be applied. For example, if you select
 the video codec with @code{-vcodec libvpx} and use @code{-vpre 1080p},
 then it will search for the file @file{libvpx-1080p.ffpreset}.
+
+@subsection avpreset files
+avpreset files are specified with the @code{pre} option. They work similar to
+ffpreset files, but they only allow encoder- specific options. Therefore, an
+@var{option}=@var{value} pair specifying an encoder cannot be used.
+
+When the @code{pre} option is specified, ffmpeg will look for files with the
+suffix .avpreset in the directories @file{$AVCONV_DATADIR} (if set), and
+@file{$HOME/.avconv}, and in the datadir defined at configuration time (usually
+@file{PREFIX/share/ffmpeg}), in that order.
+
+First ffmpeg searches for a file named @var{codec_name}-@var{arg}.avpreset in
+the above-mentioned directories, where @var{codec_name} is the name of the codec
+to which the preset file options will be applied. For example, if you select the
+video codec with @code{-vcodec libvpx} and use @code{-pre 1080p}, then it will
+search for the file @file{libvpx-1080p.avpreset}.
+
+If no such file is found, then ffmpeg will search for a file named
+@var{arg}.avpreset in the same directories.
+
 @c man end OPTIONS
 
 @chapter Tips
@@ -1221,21 +1322,6 @@ quality).
 @chapter Examples
 @c man begin EXAMPLES
 
-@section Preset files
-
-A preset file contains a sequence of @var{option=value} pairs, one for
-each line, specifying a sequence of options which can be specified also on
-the command line. Lines starting with the hash ('#') character are ignored and
-are used to provide comments. Empty lines are also ignored. Check the
-@file{presets} directory in the FFmpeg source tree for examples.
-
-Preset files are specified with the @code{pre} option, this option takes a
-preset name as input.  FFmpeg searches for a file named @var{preset_name}.avpreset in
-the directories @file{$AVCONV_DATADIR} (if set), and @file{$HOME/.ffmpeg}, and in
-the data directory defined at configuration time (usually @file{$PREFIX/share/ffmpeg})
-in that order.  For example, if the argument is @code{libx264-max}, it will
-search for the file @file{libx264-max.avpreset}.
-
 @section Video and Audio grabbing
 
 If you specify the input format and device then ffmpeg can grab video
@@ -1405,11 +1491,11 @@ ffmpeg -f image2 -pattern_type glob -i 'foo-*.jpeg' -r 12 -s WxH foo.avi
 You can put many streams of the same type in the output:
 
 @example
-ffmpeg -i test1.avi -i test2.avi -map 0:3 -map 0:2 -map 0:1 -map 0:0 -c copy test12.nut
+ffmpeg -i test1.avi -i test2.avi -map 1:1 -map 1:0 -map 0:1 -map 0:0 -c copy -y test12.nut
 @end example
 
-The resulting output file @file{test12.avi} will contain first four streams from
-the input file in reverse order.
+The resulting output file @file{test12.nut} will contain the first four streams
+from the input files in reverse order.
 
 @item
 To force CBR video output:

doc/ffplay.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle ffplay Documentation
 @titlepage
@@ -37,10 +38,14 @@ Force displayed height.
 Set frame size (WxH or abbreviation), needed for videos which do
 not contain a header with the frame size like raw YUV.  This option
 has been deprecated in favor of private options, try -video_size.
+@item -fs
+Start in fullscreen mode.
 @item -an
 Disable audio.
 @item -vn
 Disable video.
+@item -sn
+Disable subtitles.
 @item -ss @var{pos}
 Seek to a given position in seconds.
 @item -t @var{duration}
@@ -84,6 +89,9 @@ output. In the filtergraph, the input is associated to the label
 ffmpeg-filters manual for more information about the filtergraph
 syntax.
 
+You can specify this parameter multiple times and cycle through the specified
+filtergraphs along with the show modes by pressing the key @key{w}.
+
 @item -af @var{filtergraph}
 @var{filtergraph} is a description of the filtergraph to apply to
 the input audio.
@@ -106,15 +114,10 @@ duration, the codec parameters, the current position in the stream and
 the audio/video synchronisation drift. It is on by default, to
 explicitly disable it you need to specify @code{-nostats}.
 
-@item -bug
-Work around bugs.
 @item -fast
 Non-spec-compliant optimizations.
 @item -genpts
 Generate pts.
-@item -rtp_tcp
-Force RTP/TCP protocol usage instead of RTP/UDP. It is only meaningful
-if you are streaming with the RTSP protocol.
 @item -sync @var{type}
 Set the master clock to audio (@code{type=audio}), video
 (@code{type=video}) or external (@code{type=ext}). Default is audio. The
@@ -122,23 +125,20 @@ master clock is used to control audio-video synchronization. Most media
 players use audio as master clock, but in some cases (streaming or high
 quality broadcast) it is necessary to change that. This option is mainly
 used for debugging purposes.
-@item -threads @var{count}
-Set the thread count.
-@item -ast @var{audio_stream_number}
-Select the desired audio stream number, counting from 0. The number
-refers to the list of all the input audio streams. If it is greater
-than the number of audio streams minus one, then the last one is
-selected, if it is negative the audio playback is disabled.
-@item -vst @var{video_stream_number}
-Select the desired video stream number, counting from 0. The number
-refers to the list of all the input video streams. If it is greater
-than the number of video streams minus one, then the last one is
-selected, if it is negative the video playback is disabled.
-@item -sst @var{subtitle_stream_number}
-Select the desired subtitle stream number, counting from 0. The number
-refers to the list of all the input subtitle streams. If it is greater
-than the number of subtitle streams minus one, then the last one is
-selected, if it is negative the subtitle rendering is disabled.
+@item -ast @var{audio_stream_specifier}
+Select the desired audio stream using the given stream specifier. The stream
+specifiers are described in the @ref{Stream specifiers} chapter. If this option
+is not specified, the "best" audio stream is selected in the program of the
+already selected video stream.
+@item -vst @var{video_stream_specifier}
+Select the desired video stream using the given stream specifier. The stream
+specifiers are described in the @ref{Stream specifiers} chapter. If this option
+is not specified, the "best" video stream is selected.
+@item -sst @var{subtitle_stream_specifier}
+Select the desired subtitle stream using the given stream specifier. The stream
+specifiers are described in the @ref{Stream specifiers} chapter. If this option
+is not specified, the "best" subtitle stream is selected in the program of the
+already selected video or audio stream.
 @item -autoexit
 Exit when video is done playing.
 @item -exitonkeydown
@@ -159,6 +159,22 @@ Force a specific video decoder.
 
 @item -scodec @var{codec_name}
 Force a specific subtitle decoder.
+
+@item -autorotate
+Automatically rotate the video according to presentation metadata. Enabled by
+default, use @option{-noautorotate} to disable it.
+
+@item -framedrop
+Drop video frames if video is out of sync. Enabled by default if the master
+clock is not set to video. Use this option to enable frame dropping for all
+master clock sources, use @option{-noframedrop} to disable it.
+
+@item -infbuf
+Do not limit the input buffer size, read as much data as possible from the
+input as soon as possible. Enabled by default for realtime streams, where data
+may be dropped if not read in time. Use this option to enable infinite buffers
+for all inputs, use @option{-noinfbuf} to disable it.
+
 @end table
 
 @section While playing
@@ -174,7 +190,7 @@ Toggle full screen.
 Pause.
 
 @item a
-Cycle audio channel in the curret program.
+Cycle audio channel in the current program.
 
 @item v
 Cycle video channel.
@@ -186,7 +202,7 @@ Cycle subtitle channel in the current program.
 Cycle program.
 
 @item w
-Show audio waves.
+Cycle video filters or show modes.
 
 @item s
 Step to the next frame.

doc/ffprobe.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle ffprobe Documentation
 @titlepage
@@ -119,6 +120,10 @@ Show payload data, as a hexadecimal and ASCII dump. Coupled with
 
 The dump is printed as the "data" field. It may contain newlines.
 
+@item -show_data_hash @var{algorithm}
+Show a hash of payload data, for packets with @option{-show_packets} and for
+codec extradata with @option{-show_streams}.
+
 @item -show_error
 Show information about the error found when trying to probe the input.
 
@@ -180,7 +185,7 @@ format : stream=codec_type
 
 To show all the tags in the stream and format sections:
 @example
-format_tags : format_tags
+stream_tags : format_tags
 @end example
 
 To show only the @code{title} tag (if available) in the stream
@@ -317,6 +322,12 @@ Show information related to program and library versions. This is the
 equivalent of setting both @option{-show_program_version} and
 @option{-show_library_versions} options.
 
+@item -show_pixel_formats
+Show information about all pixel formats supported by FFmpeg.
+
+Pixel format information for each format is printed within a section
+with name "PIXEL_FORMAT".
+
 @item -bitexact
 Force bitexact output, useful to produce output which is not dependent
 on the specific build.

doc/ffprobe.xsd

@@ -8,15 +8,17 @@
 
     <xsd:complexType name="ffprobeType">
         <xsd:sequence>
+            <xsd:element name="program_version"  type="ffprobe:programVersionType"  minOccurs="0" maxOccurs="1" />
+            <xsd:element name="library_versions" type="ffprobe:libraryVersionsType" minOccurs="0" maxOccurs="1" />
+            <xsd:element name="pixel_formats"    type="ffprobe:pixelFormatsType"    minOccurs="0" maxOccurs="1" />
             <xsd:element name="packets"  type="ffprobe:packetsType" minOccurs="0" maxOccurs="1" />
             <xsd:element name="frames"   type="ffprobe:framesType"  minOccurs="0" maxOccurs="1" />
-            <xsd:element name="streams"  type="ffprobe:streamsType" minOccurs="0" maxOccurs="1" />
+            <xsd:element name="packets_and_frames" type="ffprobe:packetsAndFramesType" minOccurs="0" maxOccurs="1" />
             <xsd:element name="programs" type="ffprobe:programsType" minOccurs="0" maxOccurs="1" />
+            <xsd:element name="streams"  type="ffprobe:streamsType" minOccurs="0" maxOccurs="1" />
             <xsd:element name="chapters" type="ffprobe:chaptersType" minOccurs="0" maxOccurs="1" />
             <xsd:element name="format"   type="ffprobe:formatType"  minOccurs="0" maxOccurs="1" />
             <xsd:element name="error"    type="ffprobe:errorType"   minOccurs="0" maxOccurs="1" />
-            <xsd:element name="program_version"  type="ffprobe:programVersionType"  minOccurs="0" maxOccurs="1" />
-            <xsd:element name="library_versions" type="ffprobe:libraryVersionsType" minOccurs="0" maxOccurs="1" />
         </xsd:sequence>
     </xsd:complexType>
 
@@ -35,6 +37,16 @@
         </xsd:sequence>
     </xsd:complexType>
 
+    <xsd:complexType name="packetsAndFramesType">
+        <xsd:sequence>
+            <xsd:choice minOccurs="0" maxOccurs="unbounded">
+                <xsd:element name="packet" type="ffprobe:packetType" minOccurs="0" maxOccurs="unbounded"/>
+                <xsd:element name="frame" type="ffprobe:frameType" minOccurs="0" maxOccurs="unbounded"/>
+                <xsd:element name="subtitle" type="ffprobe:subtitleType" minOccurs="0" maxOccurs="unbounded"/>
+            </xsd:choice>
+        </xsd:sequence>
+    </xsd:complexType>
+
     <xsd:complexType name="packetType">
       <xsd:attribute name="codec_type"    type="xsd:string" use="required" />
       <xsd:attribute name="stream_index"  type="xsd:int" use="required" />
@@ -50,9 +62,15 @@
       <xsd:attribute name="pos"           type="xsd:long"  />
       <xsd:attribute name="flags"         type="xsd:string" use="required" />
       <xsd:attribute name="data"          type="xsd:string" />
+      <xsd:attribute name="data_hash"     type="xsd:string" />
     </xsd:complexType>
 
     <xsd:complexType name="frameType">
+      <xsd:sequence>
+            <xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
+            <xsd:element name="side_data_list" type="ffprobe:frameSideDataListType"   minOccurs="0" maxOccurs="1" />
+      </xsd:sequence>
+
       <xsd:attribute name="media_type"    type="xsd:string" use="required"/>
       <xsd:attribute name="key_frame"     type="xsd:int"    use="required"/>
       <xsd:attribute name="pts"           type="xsd:long" />
@@ -87,6 +105,16 @@
       <xsd:attribute name="repeat_pict"            type="xsd:int"   />
     </xsd:complexType>
 
+    <xsd:complexType name="frameSideDataListType">
+        <xsd:sequence>
+            <xsd:element name="side_data" type="ffprobe:frameSideDataType" minOccurs="1" maxOccurs="unbounded"/>
+        </xsd:sequence>
+    </xsd:complexType>
+    <xsd:complexType name="frameSideDataType">
+        <xsd:attribute name="side_data_type"              type="xsd:string"/>
+        <xsd:attribute name="side_data_size"              type="xsd:int"   />
+    </xsd:complexType>
+
     <xsd:complexType name="subtitleType">
       <xsd:attribute name="media_type"         type="xsd:string" fixed="subtitle" use="required"/>
       <xsd:attribute name="pts"                type="xsd:long" />
@@ -138,6 +166,7 @@
       <xsd:attribute name="codec_tag"        type="xsd:string" use="required"/>
       <xsd:attribute name="codec_tag_string" type="xsd:string" use="required"/>
       <xsd:attribute name="extradata"        type="xsd:string" />
+      <xsd:attribute name="extradata_hash"   type="xsd:string" />
 
       <!-- video attributes -->
       <xsd:attribute name="width"                type="xsd:int"/>
@@ -147,7 +176,13 @@
       <xsd:attribute name="display_aspect_ratio" type="xsd:string"/>
       <xsd:attribute name="pix_fmt"              type="xsd:string"/>
       <xsd:attribute name="level"                type="xsd:int"/>
+      <xsd:attribute name="color_range"          type="xsd:string"/>
+      <xsd:attribute name="color_space"          type="xsd:string"/>
+      <xsd:attribute name="color_transfer"       type="xsd:string"/>
+      <xsd:attribute name="color_primaries"      type="xsd:string"/>
+      <xsd:attribute name="chroma_location"      type="xsd:string"/>
       <xsd:attribute name="timecode"             type="xsd:string"/>
+      <xsd:attribute name="refs"                 type="xsd:int"/>
 
       <!-- audio attributes -->
       <xsd:attribute name="sample_fmt"       type="xsd:string"/>
@@ -165,6 +200,8 @@
       <xsd:attribute name="duration_ts"      type="xsd:long"/>
       <xsd:attribute name="duration"         type="xsd:float"/>
       <xsd:attribute name="bit_rate"         type="xsd:int"/>
+      <xsd:attribute name="max_bit_rate"     type="xsd:int"/>
+      <xsd:attribute name="bits_per_raw_sample" type="xsd:int"/>
       <xsd:attribute name="nb_frames"        type="xsd:int"/>
       <xsd:attribute name="nb_read_frames"   type="xsd:int"/>
       <xsd:attribute name="nb_read_packets"  type="xsd:int"/>
@@ -217,10 +254,7 @@
     <xsd:complexType name="programVersionType">
       <xsd:attribute name="version"          type="xsd:string" use="required"/>
       <xsd:attribute name="copyright"        type="xsd:string" use="required"/>
-      <xsd:attribute name="build_date"       type="xsd:string" use="required"/>
-      <xsd:attribute name="build_time"       type="xsd:string" use="required"/>
-      <xsd:attribute name="compiler_type"    type="xsd:string" use="required"/>
-      <xsd:attribute name="compiler_version" type="xsd:string" use="required"/>
+      <xsd:attribute name="compiler_ident"   type="xsd:string" use="required"/>
       <xsd:attribute name="configuration"    type="xsd:string" use="required"/>
     </xsd:complexType>
 
@@ -257,4 +291,45 @@
           <xsd:element name="library_version" type="ffprobe:libraryVersionType" minOccurs="0" maxOccurs="unbounded"/>
         </xsd:sequence>
     </xsd:complexType>
+
+    <xsd:complexType name="pixelFormatFlagsType">
+      <xsd:attribute name="big_endian" type="xsd:int" use="required"/>
+      <xsd:attribute name="palette"    type="xsd:int" use="required"/>
+      <xsd:attribute name="bitstream"  type="xsd:int" use="required"/>
+      <xsd:attribute name="hwaccel"    type="xsd:int" use="required"/>
+      <xsd:attribute name="planar"     type="xsd:int" use="required"/>
+      <xsd:attribute name="rgb"        type="xsd:int" use="required"/>
+      <xsd:attribute name="pseudopal"  type="xsd:int" use="required"/>
+      <xsd:attribute name="alpha"      type="xsd:int" use="required"/>
+    </xsd:complexType>
+
+    <xsd:complexType name="pixelFormatComponentType">
+      <xsd:attribute name="index"      type="xsd:int" use="required"/>
+      <xsd:attribute name="bit_depth"  type="xsd:int" use="required"/>
+    </xsd:complexType>
+
+    <xsd:complexType name="pixelFormatComponentsType">
+      <xsd:sequence>
+        <xsd:element name="component" type="ffprobe:pixelFormatComponentType" minOccurs="0" maxOccurs="unbounded"/>
+      </xsd:sequence>
+    </xsd:complexType>
+
+    <xsd:complexType name="pixelFormatType">
+      <xsd:sequence>
+        <xsd:element name="flags" type="ffprobe:pixelFormatFlagsType" minOccurs="0" maxOccurs="1"/>
+        <xsd:element name="components" type="ffprobe:pixelFormatComponentsType" minOccurs="0" maxOccurs="1"/>
+      </xsd:sequence>
+
+      <xsd:attribute name="name"                type="xsd:string" use="required"/>
+      <xsd:attribute name="nb_components"       type="xsd:int"    use="required"/>
+      <xsd:attribute name="log2_chroma_w"       type="xsd:int"/>
+      <xsd:attribute name="log2_chroma_h"       type="xsd:int"/>
+      <xsd:attribute name="bits_per_pixel"      type="xsd:int"/>
+    </xsd:complexType>
+
+    <xsd:complexType name="pixelFormatsType">
+      <xsd:sequence>
+        <xsd:element name="pixel_format" type="ffprobe:pixelFormatType" minOccurs="0" maxOccurs="unbounded"/>
+      </xsd:sequence>
+    </xsd:complexType>
 </xsd:schema>

doc/ffserver.conf

@@ -1,11 +1,11 @@
 # Port on which the server is listening. You must select a different
 # port from your standard HTTP web server if it is running on the same
 # computer.
-Port 8090
+HTTPPort 8090
 
 # Address on which the server is bound. Only useful if you have
 # several network interfaces.
-BindAddress 0.0.0.0
+HTTPBindAddress 0.0.0.0
 
 # Number of simultaneous HTTP connections that can be handled. It has
 # to be defined *before* the MaxClients parameter, since it defines the

doc/ffserver.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle ffserver Documentation
 @titlepage
@@ -66,7 +67,7 @@ http://@var{ffserver_ip_address}:@var{http_port}/@var{feed_name}
 
 where @var{ffserver_ip_address} is the IP address of the machine where
 @command{ffserver} is installed, @var{http_port} is the port number of
-the HTTP server (configured through the @option{Port} option), and
+the HTTP server (configured through the @option{HTTPPort} option), and
 @var{feed_name} is the name of the corresponding feed defined in the
 configuration file.
 
@@ -101,7 +102,7 @@ http://@var{ffserver_ip_address}:@var{rtsp_port}/@var{stream_name}[@var{options}
 the configuration file. @var{options} is a list of options specified
 after the URL which affects how the stream is served by
 @command{ffserver}. @var{http_port} and @var{rtsp_port} are the HTTP
-and RTSP ports configured with the options @var{Port} and
+and RTSP ports configured with the options @var{HTTPPort} and
 @var{RTSPPort} respectively.
 
 In case the stream is associated to a feed, the encoding parameters
@@ -111,7 +112,7 @@ must be configured in the stream configuration. They are sent to
 the @command{ffmpeg} encoders.
 
 The @command{ffmpeg} @option{override_ffserver} commandline option
-allows to override the encoding parameters set by the server.
+allows one to override the encoding parameters set by the server.
 
 Multiple streams can be connected to the same feed.
 
@@ -203,11 +204,9 @@ WARNING: trying to stream test1.mpg doesn't work with WMP as it tries to
 transfer the entire file before starting to play.
 The same is true of AVI files.
 
-@section What happens next?
-
-You should edit the ffserver.conf file to suit your needs (in terms of
-frame rates etc). Then install ffserver and ffmpeg, write a script to start
-them up, and off you go.
+You should edit the @file{ffserver.conf} file to suit your needs (in
+terms of frame rates etc). Then install @command{ffserver} and
+@command{ffmpeg}, write a script to start them up, and off you go.
 
 @section What else can it do?
 
@@ -354,20 +353,29 @@ allow everybody else.
 
 @section Global options
 @table @option
+@item HTTPPort @var{port_number}
 @item Port @var{port_number}
 @item RTSPPort @var{port_number}
 
-Set TCP port number on which the HTTP/RTSP server is listening. You
-must select a different port from your standard HTTP web server if it
-is running on the same computer.
+@var{HTTPPort} sets the HTTP server listening TCP port number,
+@var{RTSPPort} sets the RTSP server listening TCP port number.
+
+@var{Port} is the equivalent of @var{HTTPPort} and is deprecated.
+
+You must select a different port from your standard HTTP web server if
+it is running on the same computer.
 
 If not specified, no corresponding server will be created.
 
+@item HTTPBindAddress @var{ip_address}
 @item BindAddress @var{ip_address}
 @item RTSPBindAddress @var{ip_address}
 Set address on which the HTTP/RTSP server is bound. Only useful if you
 have several network interfaces.
 
+@var{BindAddress} is the equivalent of @var{HTTPBindAddress} and is
+deprecated.
+
 @item MaxHTTPConnections @var{n}
 Set number of simultaneous HTTP connections that can be handled. It
 has to be defined @emph{before} the @option{MaxClients} parameter,
@@ -401,6 +409,12 @@ ignored, and the log is written to standard output.
 Set no-daemon mode. This option is currently ignored since now
 @command{ffserver} will always work in no-daemon mode, and is
 deprecated.
+
+@item UseDefaults
+@item NoDefaults
+Control whether default codec options are used for the all streams or not.
+Each stream may overwrite this setting for its own. Default is @var{UseDefaults}.
+The lastest occurrence overrides previous if multiple definitions.
 @end table
 
 @section Feed section
@@ -564,6 +578,11 @@ deprecated in favor of @option{Metadata}.
 @item Metadata @var{key} @var{value}
 Set metadata value on the output stream.
 
+@item UseDefaults
+@item NoDefaults
+Control whether default codec options are used for the stream or not.
+Default is @var{UseDefaults} unless disabled globally.
+
 @item NoAudio
 @item NoVideo
 Suppress audio/video.
@@ -582,8 +601,9 @@ Set sampling frequency for audio. When using low bitrates, you should
 lower this frequency to 22050 or 11025. The supported frequencies
 depend on the selected audio codec.
 
-@item AVOptionAudio @var{option} @var{value} (@emph{encoding,audio})
-Set generic option for audio stream.
+@item AVOptionAudio [@var{codec}:]@var{option} @var{value} (@emph{encoding,audio})
+Set generic or private option for audio stream.
+Private option must be prefixed with codec name or codec must be defined before.
 
 @item AVPresetAudio @var{preset} (@emph{encoding,audio})
 Set preset for audio stream.
@@ -660,8 +680,9 @@ Set video @option{qdiff} encoding option.
 @item DarkMask @var{float} (@emph{encoding,video})
 Set @option{lumi_mask}/@option{dark_mask} encoding options.
 
-@item AVOptionVideo @var{option} @var{value} (@emph{encoding,video})
-Set generic option for video stream.
+@item AVOptionVideo [@var{codec}:]@var{option} @var{value} (@emph{encoding,video})
+Set generic or private option for video stream.
+Private option must be prefixed with codec name or codec must be defined before.
 
 @item AVPresetVideo @var{preset} (@emph{encoding,video})
 Set preset for video stream.

doc/fftools-common-opts.texi

@@ -3,7 +3,7 @@ representing a number as input, which may be followed by one of the SI
 unit prefixes, for example: 'K', 'M', or 'G'.
 
 If 'i' is appended to the SI unit prefix, the complete prefix will be
-interpreted as a unit prefix for binary multiplies, which are based on
+interpreted as a unit prefix for binary multiples, which are based on
 powers of 1024 instead of powers of 1000. Appending 'B' to the SI unit
 prefix multiplies the value by 8. This allows using, for example:
 'KB', 'MiB', 'G' and 'B' as number suffixes.
@@ -44,8 +44,15 @@ streams of this type.
 If @var{stream_index} is given, then it matches the stream with number @var{stream_index}
 in the program with the id @var{program_id}. Otherwise, it matches all streams in the
 program.
-@item #@var{stream_id}
-Matches the stream by a format-specific ID.
+@item #@var{stream_id} or i:@var{stream_id}
+Match the stream by stream id (e.g. PID in MPEG-TS container).
+@item m:@var{key}[:@var{value}]
+Matches streams with the metadata tag @var{key} having the specified value. If
+@var{value} is not given, matches streams that contain the given tag with any
+value.
+
+Note that in @command{ffmpeg}, matching by metadata will only work properly for
+input files.
 @end table
 
 @section Generic options
@@ -96,7 +103,10 @@ Print detailed information about the filter name @var{filter_name}. Use the
 Show version.
 
 @item -formats
-Show available formats.
+Show available formats (including devices).
+
+@item -devices
+Show available devices.
 
 @item -codecs
 Show all codecs known to libavcodec.
@@ -131,6 +141,22 @@ Show channel names and standard channel layouts.
 @item -colors
 Show recognized color names.
 
+@item -sources @var{device}[,@var{opt1}=@var{val1}[,@var{opt2}=@var{val2}]...]
+Show autodetected sources of the intput device.
+Some devices may provide system-dependent source names that cannot be autodetected.
+The returned list cannot be assumed to be always complete.
+@example
+ffmpeg -sources pulse,server=192.168.0.4
+@end example
+
+@item -sinks @var{device}[,@var{opt1}=@var{val1}[,@var{opt2}=@var{val2}]...]
+Show autodetected sinks of the output device.
+Some devices may provide system-dependent sink names that cannot be autodetected.
+The returned list cannot be assumed to be always complete.
+@example
+ffmpeg -sinks pulse,server=192.168.0.4
+@end example
+
 @item -loglevel [repeat+]@var{loglevel} | -v [repeat+]@var{loglevel}
 Set the logging level used by the library.
 Adding "repeat+" indicates that repeated log output should not be compressed
@@ -139,27 +165,27 @@ omitted. "repeat" can also be used alone.
 If "repeat" is used alone, and with no prior loglevel set, the default
 loglevel will be used. If multiple loglevel parameters are given, using
 'repeat' will not change the loglevel.
-@var{loglevel} is a number or a string containing one of the following values:
+@var{loglevel} is a string or a number containing one of the following values:
 @table @samp
-@item quiet
+@item quiet, -8
 Show nothing at all; be silent.
-@item panic
+@item panic, 0
 Only show fatal errors which could lead the process to crash, such as
 and assert failure. This is not currently used for anything.
-@item fatal
+@item fatal, 8
 Only show fatal errors. These are errors after which the process absolutely
 cannot continue after.
-@item error
+@item error, 16
 Show all errors, including ones which can be recovered from.
-@item warning
+@item warning, 24
 Show all warnings and errors. Any message related to possibly
 incorrect or unexpected events will be shown.
-@item info
+@item info, 32
 Show informative messages during processing. This is in addition to
 warnings and errors. This is the default value.
-@item verbose
+@item verbose, 40
 Same as @code{info}, except more verbose.
-@item debug
+@item debug, 48
 Show everything, including debugging information.
 @end table
 
@@ -178,19 +204,29 @@ directory.
 This file can be useful for bug reports.
 It also implies @code{-loglevel verbose}.
 
-Setting the environment variable @code{FFREPORT} to any value has the
+Setting the environment variable @env{FFREPORT} to any value has the
 same effect. If the value is a ':'-separated key=value sequence, these
-options will affect the report; options values must be escaped if they
+options will affect the report; option values must be escaped if they
 contain special characters or the options delimiter ':' (see the
-``Quoting and escaping'' section in the ffmpeg-utils manual). The
-following option is recognized:
+``Quoting and escaping'' section in the ffmpeg-utils manual).
+
+The following options are recognized:
 @table @option
 @item file
 set the file name to use for the report; @code{%p} is expanded to the name
 of the program, @code{%t} is expanded to a timestamp, @code{%%} is expanded
 to a plain @code{%}
+@item level
+set the log verbosity level using a numerical value (see @code{-loglevel}).
 @end table
 
+For example, to output a report to a file named @file{ffreport.log}
+using a log level of @code{32} (alias for log level @code{info}):
+
+@example
+FFREPORT=file=ffreport.log:level=32 ffmpeg -i input output
+@end example
+
 Errors in parsing the environment variable are not fatal, and will not
 appear in the report.
 
@@ -258,8 +294,41 @@ Possible flags for this option are:
 @end table
 
 @item -opencl_bench
-Benchmark all available OpenCL devices and show the results. This option
-is only available when FFmpeg has been compiled with @code{--enable-opencl}.
+This option is used to benchmark all available OpenCL devices and print the
+results. This option is only available when FFmpeg has been compiled with
+@code{--enable-opencl}.
+
+When FFmpeg is configured with @code{--enable-opencl}, the options for the
+global OpenCL context are set via @option{-opencl_options}. See the
+"OpenCL Options" section in the ffmpeg-utils manual for the complete list of
+supported options. Amongst others, these options include the ability to select
+a specific platform and device to run the OpenCL code on. By default, FFmpeg
+will run on the first device of the first platform. While the options for the
+global OpenCL context provide flexibility to the user in selecting the OpenCL
+device of their choice, most users would probably want to select the fastest
+OpenCL device for their system.
+
+This option assists the selection of the most efficient configuration by
+identifying the appropriate device for the user's system. The built-in
+benchmark is run on all the OpenCL devices and the performance is measured for
+each device. The devices in the results list are sorted based on their
+performance with the fastest device listed first. The user can subsequently
+invoke @command{ffmpeg} using the device deemed most appropriate via
+@option{-opencl_options} to obtain the best performance for the OpenCL
+accelerated code.
+
+Typical usage to use the fastest OpenCL device involve the following steps.
+
+Run the command:
+@example
+ffmpeg -opencl_bench
+@end example
+Note down the platform ID (@var{pidx}) and device ID (@var{didx}) of the first
+i.e. fastest device in the list.
+Select the platform and device using the command:
+@example
+ffmpeg -opencl_options platform_idx=@var{pidx}:device_idx=@var{didx} ...
+@end example
 
 @item -opencl_options options (@emph{global})
 Set OpenCL environment options. This option is only available when

doc/formats.texi

@@ -55,6 +55,10 @@ Do not merge side data.
 Enable RTP MP4A-LATM payload.
 @item nobuffer
 Reduce the latency introduced by optional buffering
+@item bitexact
+Only write platform-, build- and time-independent data.
+This ensures that file and data checksums are reproducible and match between
+platforms. Its primary use is for regression testing.
 @end table
 
 @item seek2any @var{integer} (@emph{input})
@@ -168,6 +172,18 @@ The offset is added by the muxer to the output timestamps.
 Specifying a positive offset means that the corresponding streams are
 delayed bt the time duration specified in @var{offset}. Default value
 is @code{0} (meaning that no offset is applied).
+
+@item format_whitelist @var{list} (@emph{input})
+"," separated List of allowed demuxers. By default all are allowed.
+
+@item dump_separator @var{string} (@emph{input})
+Separator used to separate the fields printed on the command line about the
+Stream parameters.
+For example to separate the fields with newlines and indention:
+@example
+ffprobe -dump_separator "
+                          "  -i ~/videos/matrixbench_mpeg2.mpg
+@end example
 @end table
 
 @c man end FORMAT OPTIONS

doc/general.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle General Documentation
 @titlepage
@@ -108,6 +109,14 @@ Go to @url{http://www.wavpack.com/} and follow the instructions for
 installing the library. Then pass @code{--enable-libwavpack} to configure to
 enable it.
 
+@section OpenH264
+
+FFmpeg can make use of the OpenH264 library for H.264 encoding.
+
+Go to @url{http://www.openh264.org/} and follow the instructions for
+installing the library. Then pass @code{--enable-libopenh264} to configure to
+enable it.
+
 @section x264
 
 FFmpeg can make use of the x264 library for H.264 encoding.
@@ -130,7 +139,7 @@ Go to @url{http://x265.org/developers.html} and follow the instructions
 for installing the library. Then pass @code{--enable-libx265} to configure
 to enable it.
 
-@float note
+@float NOTE
 x265 is under the GNU Public License Version 2 or later
 (see @url{http://www.gnu.org/licenses/old-licenses/gpl-2.0.html} for
 details), you must upgrade FFmpeg's license to GPL in order to use it.
@@ -143,7 +152,7 @@ by Google as part of the WebRTC project. libilbc is a packaging friendly
 copy of the iLBC codec. FFmpeg can make use of the libilbc library for
 iLBC encoding and decoding.
 
-Go to @url{https://github.com/dekkers/libilbc} and follow the instructions for
+Go to @url{https://github.com/TimothyGu/libilbc} and follow the instructions for
 installing the library. Then pass @code{--enable-libilbc} to configure to
 enable it.
 
@@ -162,6 +171,27 @@ libzvbi is licensed under the GNU General Public License Version 2 or later
 you must upgrade FFmpeg's license to GPL in order to use it.
 @end float
 
+@section AviSynth
+
+FFmpeg can read AviSynth scripts as input. To enable support, pass
+@code{--enable-avisynth} to configure.  The correct headers are
+included in compat/avisynth/, which allows the user to enable support
+without needing to search for these headers themselves.
+
+For Windows, supported AviSynth variants are
+@url{http://avisynth.nl, AviSynth 2.5 or 2.6} for 32-bit builds and
+@url{http://avs-plus.net, AviSynth+ 0.1} for 32-bit and 64-bit builds.
+
+For Linux and OS X, the supported AviSynth variant is
+@url{https://github.com/avxsynth/avxsynth, AvxSynth}.
+
+@float NOTE
+AviSynth and AvxSynth are loaded dynamically.  Distributors can build FFmpeg
+with @code{--enable-avisynth}, and the binaries will work regardless of the
+end user having AviSynth or AvxSynth installed - they'll only need to be
+installed to use AviSynth scripts (obviously).
+@end float
+
 
 @chapter Supported File Formats, Codecs or Features
 
@@ -184,7 +214,7 @@ library:
 @item American Laser Games MM   @tab   @tab X
     @tab Multimedia format used in games like Mad Dog McCree.
 @item 3GPP AMR                  @tab X @tab X
-@item Amazing Studio Packed Animation File        @tab   @tab X
+@item Amazing Studio Packed Animation File  @tab   @tab X
     @tab Multimedia format used in game Heart Of Darkness.
 @item Apple HTTP Live Streaming @tab   @tab X
 @item Artworx Data Format       @tab   @tab X
@@ -222,8 +252,11 @@ library:
     @tab Used in the game Cyberia from Interplay.
 @item Delphine Software International CIN @tab   @tab X
     @tab Multimedia format used by Delphine Software games.
+@item Digital Speech Standard (DSS) @tab   @tab X
+@item Canopus HQX               @tab   @tab X
 @item CD+G                      @tab   @tab X
     @tab Video format used by CD+G karaoke disks
+@item Phantom Cine              @tab   @tab X
 @item Commodore CDXL            @tab   @tab X
     @tab Amiga CD video format
 @item Core Audio Format         @tab X @tab X
@@ -237,6 +270,7 @@ library:
 @item Deluxe Paint Animation    @tab   @tab X
 @item DFA                       @tab   @tab X
     @tab This format is used in Chronomaster game
+@item DSD Stream File (DSF)     @tab   @tab X
 @item DV video                  @tab X @tab X
 @item DXA                       @tab   @tab X
     @tab This format is used in the non-Windows version of the Feeble Files
@@ -287,9 +321,11 @@ library:
     @tab Used by Linux Media Labs MPEG-4 PCI boards
 @item LOAS                      @tab   @tab X
     @tab contains LATM multiplexed AAC audio
+@item LRC                       @tab X @tab X
 @item LVF                       @tab   @tab X
 @item LXF                       @tab   @tab X
     @tab VR native stream format, used by Leitch/Harris' video servers.
+@item Magic Lantern Video (MLV) @tab   @tab X
 @item Matroska                  @tab X @tab X
 @item Matroska audio            @tab X @tab
 @item FFmpeg metadata           @tab X @tab X
@@ -429,6 +465,7 @@ library:
 @item Sony Wave64 (W64)         @tab X @tab X
 @item SoX native format         @tab X @tab X
 @item SUN AU format             @tab X @tab X
+@item SUP raw PGS subtitles     @tab   @tab X
 @item Text files                @tab   @tab X
 @item THP                       @tab   @tab X
     @tab Used on the Nintendo GameCube.
@@ -467,11 +504,13 @@ following image formats are supported:
 @item Name @tab Encoding @tab Decoding @tab Comments
 @item .Y.U.V       @tab X @tab X
     @tab one raw file per component
+@item Alias PIX    @tab X @tab X
+    @tab Alias/Wavefront PIX image format
 @item animated GIF @tab X @tab X
 @item BMP          @tab X @tab X
     @tab Microsoft BMP image
-@item PIX          @tab   @tab X
-    @tab PIX is an image format used in the Argonaut BRender engine.
+@item BRender PIX  @tab   @tab X
+    @tab Argonaut BRender 3D engine image format.
 @item DPX          @tab X @tab X
     @tab Digital Picture Exchange
 @item EXR          @tab   @tab X
@@ -625,7 +664,7 @@ following image formats are supported:
 @item H.263 / H.263-1996     @tab  X  @tab  X
 @item H.263+ / H.263-1998 / H.263 version 2  @tab  X  @tab  X
 @item H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10  @tab  E  @tab  X
-    @tab encoding supported through external library libx264
+    @tab encoding supported through external library libx264 and OpenH264
 @item HEVC                   @tab  X  @tab  X
     @tab encoding supported through the external library libx265
 @item HNM version 4          @tab     @tab  X
@@ -659,8 +698,8 @@ following image formats are supported:
 @item LCL (LossLess Codec Library) MSZH  @tab     @tab  X
 @item LCL (LossLess Codec Library) ZLIB  @tab  E  @tab  E
 @item LOCO                   @tab     @tab  X
-@item LucasArts Smush        @tab     @tab  X
-    @tab Used in LucasArts games.
+@item LucasArts SANM/Smush   @tab     @tab  X
+    @tab Used in LucasArts games / SMUSH animations.
 @item lossless MJPEG         @tab  X  @tab  X
 @item Microsoft ATC Screen   @tab     @tab  X
     @tab Also known as Microsoft Screen 3.
@@ -695,6 +734,8 @@ following image formats are supported:
     @tab fourcc: VP50
 @item On2 VP6                @tab     @tab  X
     @tab fourcc: VP60,VP61,VP62
+@item On2 VP7                @tab     @tab  X
+    @tab fourcc: VP70,VP71
 @item VP8                    @tab  E  @tab  X
     @tab fourcc: VP80, encoding supported through external library libvpx
 @item VP9                    @tab  E  @tab  X
@@ -724,11 +765,11 @@ following image formats are supported:
     @tab Texture dictionaries used by the Renderware Engine.
 @item RL2 video              @tab     @tab  X
     @tab used in some games by Entertainment Software Partners
-@item SGI RLE 8-bit          @tab     @tab  X
 @item Sierra VMD video       @tab     @tab  X
     @tab Used in Sierra VMD files.
 @item Silicon Graphics Motion Video Compressor 1 (MVC1)  @tab     @tab  X
 @item Silicon Graphics Motion Video Compressor 2 (MVC2)  @tab     @tab  X
+@item Silicon Graphics RLE 8-bit video  @tab     @tab  X
 @item Smacker video          @tab     @tab  X
     @tab Video encoding used in Smacker.
 @item SMPTE VC-1             @tab     @tab  X
@@ -794,7 +835,7 @@ following image formats are supported:
     @tab encoding supported through external library libaacplus
 @item AAC                    @tab  E  @tab  X
     @tab encoding supported through external library libfaac and libvo-aacenc
-@item AC-3                   @tab IX  @tab  X
+@item AC-3                   @tab IX  @tab  IX
 @item ADPCM 4X Movie         @tab     @tab  X
 @item ADPCM CDROM XA         @tab     @tab  X
 @item ADPCM Creative Technology @tab     @tab  X
@@ -838,6 +879,8 @@ following image formats are supported:
 @item ADPCM Sound Blaster Pro 2-bit  @tab     @tab  X
 @item ADPCM Sound Blaster Pro 2.6-bit  @tab     @tab  X
 @item ADPCM Sound Blaster Pro 4-bit  @tab     @tab  X
+@item ADPCM VIMA
+    @tab Used in LucasArts SMUSH animations.
 @item ADPCM Westwood Studios IMA @tab     @tab  X
     @tab Used in Westwood Studios games like Command and Conquer.
 @item ADPCM Yamaha           @tab  X  @tab  X
@@ -857,6 +900,7 @@ following image formats are supported:
     @tab decoding supported through external library libcelt
 @item Delphine Software International CIN audio  @tab     @tab  X
     @tab Codec used in Delphine Software International games.
+@item Digital Speech Standard - Standard Play mode (DSS SP) @tab     @tab  X
 @item Discworld II BMV Audio @tab     @tab  X
 @item COOK                   @tab     @tab  X
     @tab All versions except 5.1 are supported.
@@ -870,6 +914,10 @@ following image formats are supported:
 @item DPCM Sol               @tab     @tab  X
 @item DPCM Xan               @tab     @tab  X
     @tab Used in Origin's Wing Commander IV AVI files.
+@item DSD (Direct Stream Digitial), least significant bit first  @tab  @tab  X
+@item DSD (Direct Stream Digitial), most significant bit first   @tab  @tab  X
+@item DSD (Direct Stream Digitial), least significant bit first, planar  @tab  @tab  X
+@item DSD (Direct Stream Digitial), most significant bit first, planar   @tab  @tab  X
 @item DSP Group TrueSpeech   @tab     @tab  X
 @item DV audio               @tab     @tab  X
 @item Enhanced AC-3          @tab  X  @tab  X
@@ -892,13 +940,14 @@ following image formats are supported:
 @item Monkey's Audio         @tab     @tab  X
 @item MP1 (MPEG audio layer 1)  @tab     @tab IX
 @item MP2 (MPEG audio layer 2)  @tab IX  @tab IX
-    @tab libtwolame can be used alternatively for encoding.
+    @tab encoding supported also through external library TwoLAME
 @item MP3 (MPEG audio layer 3)  @tab  E  @tab IX
     @tab encoding supported through external library LAME, ADU MP3 and MP3onMP4 also supported
 @item MPEG-4 Audio Lossless Coding (ALS)  @tab     @tab  X
 @item Musepack SV7           @tab     @tab  X
 @item Musepack SV8           @tab     @tab  X
 @item Nellymoser Asao        @tab  X  @tab  X
+@item On2 AVC (Audio for Video Codec) @tab     @tab  X
 @item Opus                   @tab  E  @tab  E
     @tab supported through external library libopus
 @item PCM A-law              @tab  X  @tab  X
@@ -994,6 +1043,7 @@ performance on systems without hardware floating point support).
 @item PJS (Phoenix)    @tab   @tab X @tab   @tab X
 @item RealText         @tab   @tab X @tab   @tab X
 @item SAMI             @tab   @tab X @tab   @tab X
+@item Spruce format (STL) @tab   @tab X @tab   @tab X
 @item SSA/ASS          @tab X @tab X @tab X @tab X
 @item SubRip (SRT)     @tab X @tab X @tab X @tab X
 @item SubViewer v1     @tab   @tab X @tab   @tab X
@@ -1001,7 +1051,7 @@ performance on systems without hardware floating point support).
 @item TED Talks captions @tab @tab X @tab   @tab X
 @item VobSub (IDX+SUB) @tab   @tab X @tab   @tab X
 @item VPlayer          @tab   @tab X @tab   @tab X
-@item WebVTT           @tab X @tab X @tab   @tab X
+@item WebVTT           @tab X @tab X @tab X @tab X
 @item XSUB             @tab   @tab   @tab X @tab X
 @end multitable
 
@@ -1019,6 +1069,7 @@ performance on systems without hardware floating point support).
 @item HLS          @tab X
 @item HTTP         @tab X
 @item HTTPS        @tab X
+@item Icecast      @tab X
 @item MMSH         @tab X
 @item MMST         @tab X
 @item pipe         @tab X
@@ -1029,6 +1080,7 @@ performance on systems without hardware floating point support).
 @item RTMPTE       @tab X
 @item RTMPTS       @tab X
 @item RTP          @tab X
+@item SAMBA        @tab E
 @item SCTP         @tab X
 @item SFTP         @tab E
 @item TCP          @tab X
@@ -1062,6 +1114,7 @@ performance on systems without hardware floating point support).
 @item Video4Linux2      @tab X      @tab X
 @item VfW capture       @tab X      @tab
 @item X11 grabbing      @tab X      @tab
+@item Win32 grabbing    @tab X      @tab
 @end multitable
 
 @code{X} means that input/output is supported.

doc/git-howto.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Using git to develop FFmpeg
 
@@ -299,7 +300,7 @@ the current branch history.
 git commit --amend
 @end example
 
-allows to amend the last commit details quickly.
+allows one to amend the last commit details quickly.
 
 @example
 git rebase -i origin/master

doc/indevs.texi

@@ -13,8 +13,8 @@ You can disable all the input devices using the configure option
 option "--enable-indev=@var{INDEV}", or you can disable a particular
 input device using the option "--disable-indev=@var{INDEV}".
 
-The option "-formats" of the ff* tools will display the list of
-supported input devices (amongst the demuxers).
+The option "-devices" of the ff* tools will display the list of
+supported input devices.
 
 A description of the currently available input devices follows.
 
@@ -51,6 +51,101 @@ ffmpeg -f alsa -i hw:0 alsaout.wav
 For more information see:
 @url{http://www.alsa-project.org/alsa-doc/alsa-lib/pcm.html}
 
+@section avfoundation
+
+AVFoundation input device.
+
+AVFoundation is the currently recommended framework by Apple for streamgrabbing on OSX >= 10.7 as well as on iOS.
+The older QTKit framework has been marked deprecated since OSX version 10.7.
+
+The input filename has to be given in the following syntax:
+@example
+-i "[[VIDEO]:[AUDIO]]"
+@end example
+The first entry selects the video input while the latter selects the audio input.
+The stream has to be specified by the device name or the device index as shown by the device list.
+Alternatively, the video and/or audio input device can be chosen by index using the
+@option{
+    -video_device_index <INDEX>
+}
+and/or
+@option{
+    -audio_device_index <INDEX>
+}
+, overriding any
+device name or index given in the input filename.
+
+All available devices can be enumerated by using @option{-list_devices true}, listing
+all device names and corresponding indices.
+
+There are two device name aliases:
+@table @code
+
+@item default
+Select the AVFoundation default device of the corresponding type.
+
+@item none
+Do not record the corresponding media type.
+This is equivalent to specifying an empty device name or index.
+
+@end table
+
+@subsection Options
+
+AVFoundation supports the following options:
+
+@table @option
+
+@item -list_devices <TRUE|FALSE>
+If set to true, a list of all available input devices is given showing all
+device names and indices.
+
+@item -video_device_index <INDEX>
+Specify the video device by its index. Overrides anything given in the input filename.
+
+@item -audio_device_index <INDEX>
+Specify the audio device by its index. Overrides anything given in the input filename.
+
+@item -pixel_format <FORMAT>
+Request the video device to use a specific pixel format.
+If the specified format is not supported, a list of available formats is given
+und the first one in this list is used instead. Available pixel formats are:
+@code{monob, rgb555be, rgb555le, rgb565be, rgb565le, rgb24, bgr24, 0rgb, bgr0, 0bgr, rgb0,
+ bgr48be, uyvy422, yuva444p, yuva444p16le, yuv444p, yuv422p16, yuv422p10, yuv444p10,
+ yuv420p, nv12, yuyv422, gray}
+
+@end table
+
+@subsection Examples
+
+@itemize
+
+@item
+Print the list of AVFoundation supported devices and exit:
+@example
+$ ffmpeg -f avfoundation -list_devices true -i ""
+@end example
+
+@item
+Record video from video device 0 and audio from audio device 0 into out.avi:
+@example
+$ ffmpeg -f avfoundation -i "0:0" out.avi
+@end example
+
+@item
+Record video from video device 2 and audio from audio device 1 into out.avi:
+@example
+$ ffmpeg -f avfoundation -video_device_index 2 -i ":1" out.avi
+@end example
+
+@item
+Record video from the system default video device using the pixel format bgr0 and do not record any audio into out.avi:
+@example
+$ ffmpeg -f avfoundation -pixel_format bgr0 -i "default:none" out.avi
+@end example
+
+@end itemize
+
 @section bktr
 
 BSD video input device.
@@ -72,7 +167,7 @@ The input name should be in the format:
 @end example
 
 where @var{TYPE} can be either @var{audio} or @var{video},
-and @var{NAME} is the device's name.
+and @var{NAME} is the device's name or alternative name..
 
 @subsection Options
 
@@ -125,6 +220,61 @@ Setting this value too low can degrade performance.
 See also
 @url{http://msdn.microsoft.com/en-us/library/windows/desktop/dd377582(v=vs.85).aspx}
 
+@item video_pin_name
+Select video capture pin to use by name or alternative name.
+
+@item audio_pin_name
+Select audio capture pin to use by name or alternative name.
+
+@item crossbar_video_input_pin_number
+Select video input pin number for crossbar device. This will be
+routed to the crossbar device's Video Decoder output pin.
+Note that changing this value can affect future invocations
+(sets a new default) until system reboot occurs.
+
+@item crossbar_audio_input_pin_number
+Select audio input pin number for crossbar device. This will be
+routed to the crossbar device's Audio Decoder output pin.
+Note that changing this value can affect future invocations
+(sets a new default) until system reboot occurs.
+
+@item show_video_device_dialog
+If set to @option{true}, before capture starts, popup a display dialog
+to the end user, allowing them to change video filter properties
+and configurations manually.
+Note that for crossbar devices, adjusting values in this dialog
+may be needed at times to toggle between PAL (25 fps) and NTSC (29.97)
+input frame rates, sizes, interlacing, etc.  Changing these values can
+enable different scan rates/frame rates and avoiding green bars at
+the bottom, flickering scan lines, etc.
+Note that with some devices, changing these properties can also affect future
+invocations (sets new defaults) until system reboot occurs.
+
+@item show_audio_device_dialog
+If set to @option{true}, before capture starts, popup a display dialog
+to the end user, allowing them to change audio filter properties
+and configurations manually.
+
+@item show_video_crossbar_connection_dialog
+If set to @option{true}, before capture starts, popup a display
+dialog to the end user, allowing them to manually
+modify crossbar pin routings, when it opens a video device.
+
+@item show_audio_crossbar_connection_dialog
+If set to @option{true}, before capture starts, popup a display
+dialog to the end user, allowing them to manually
+modify crossbar pin routings, when it opens an audio device.
+
+@item show_analog_tv_tuner_dialog
+If set to @option{true}, before capture starts, popup a display
+dialog to the end user, allowing them to manually
+modify TV channels and frequencies.
+
+@item show_analog_tv_tuner_audio_dialog
+If set to @option{true}, before capture starts, popup a display
+dialog to the end user, allowing them to manually
+modify TV audio (like mono vs. stereo, Language A,B or C).
+
 @end table
 
 @subsection Examples
@@ -161,6 +311,19 @@ Print the list of supported options in selected device and exit:
 $ ffmpeg -list_options true -f dshow -i video="Camera"
 @end example
 
+@item
+Specify pin names to capture by name or alternative name, specify alternative device name:
+@example
+$ ffmpeg -f dshow -audio_pin_name "Audio Out" -video_pin_name 2 -i video=video="@@device_pnp_\\?\pci#ven_1a0a&dev_6200&subsys_62021461&rev_01#4&e2c7dd6&0&00e1#@{65e8773d-8f56-11d0-a3b9-00a0c9223196@}\@{ca465100-deb0-4d59-818f-8c477184adf6@}":audio="Microphone"
+@end example
+
+@item
+Configure a crossbar device, specifying crossbar pins, allow user to adjust video capture properties at startup:
+@example
+$ ffmpeg -f dshow -show_video_device_dialog true -crossbar_video_input_pin_number 0
+     -crossbar_audio_input_pin_number 3 -i video="AVerMedia BDA Analog Capture":audio="AVerMedia BDA Analog Capture"
+@end example
+
 @end itemize
 
 @section dv1394
@@ -192,6 +355,81 @@ ffmpeg -f fbdev -frames:v 1 -r 1 -i /dev/fb0 screenshot.jpeg
 
 See also @url{http://linux-fbdev.sourceforge.net/}, and fbset(1).
 
+@section gdigrab
+
+Win32 GDI-based screen capture device.
+
+This device allows you to capture a region of the display on Windows.
+
+There are two options for the input filename:
+@example
+desktop
+@end example
+or
+@example
+title=@var{window_title}
+@end example
+
+The first option will capture the entire desktop, or a fixed region of the
+desktop. The second option will instead capture the contents of a single
+window, regardless of its position on the screen.
+
+For example, to grab the entire desktop using @command{ffmpeg}:
+@example
+ffmpeg -f gdigrab -framerate 6 -i desktop out.mpg
+@end example
+
+Grab a 640x480 region at position @code{10,20}:
+@example
+ffmpeg -f gdigrab -framerate 6 -offset_x 10 -offset_y 20 -video_size vga -i desktop out.mpg
+@end example
+
+Grab the contents of the window named "Calculator"
+@example
+ffmpeg -f gdigrab -framerate 6 -i title=Calculator out.mpg
+@end example
+
+@subsection Options
+
+@table @option
+@item draw_mouse
+Specify whether to draw the mouse pointer. Use the value @code{0} to
+not draw the pointer. Default value is @code{1}.
+
+@item framerate
+Set the grabbing frame rate. Default value is @code{ntsc},
+corresponding to a frame rate of @code{30000/1001}.
+
+@item show_region
+Show grabbed region on screen.
+
+If @var{show_region} is specified with @code{1}, then the grabbing
+region will be indicated on screen. With this option, it is easy to
+know what is being grabbed if only a portion of the screen is grabbed.
+
+Note that @var{show_region} is incompatible with grabbing the contents
+of a single window.
+
+For example:
+@example
+ffmpeg -f gdigrab -show_region 1 -framerate 6 -video_size cif -offset_x 10 -offset_y 20 -i desktop out.mpg
+@end example
+
+@item video_size
+Set the video frame size. The default is to capture the full screen if @file{desktop} is selected, or the full window size if @file{title=@var{window_title}} is selected.
+
+@item offset_x
+When capturing a region with @var{video_size}, set the distance from the left edge of the screen or desktop.
+
+Note that the offset calculation is from the top left corner of the primary monitor on Windows. If you have a monitor positioned to the left of your primary monitor, you will need to use a negative @var{offset_x} value to move the region to that monitor.
+
+@item offset_y
+When capturing a region with @var{video_size}, set the distance from the top edge of the screen or desktop.
+
+Note that the offset calculation is from the top left corner of the primary monitor on Windows. If you have a monitor positioned above your primary monitor, you will need to use a negative @var{offset_y} value to move the region to that monitor.
+
+@end table
+
 @section iec61883
 
 FireWire DV/HDV input device using libiec61883.
@@ -220,7 +458,7 @@ not work and result in undefined behavior.
 The values @option{auto}, @option{dv} and @option{hdv} are supported.
 
 @item dvbuffer
-Set maxiumum size of buffer for incoming data, in frames. For DV, this
+Set maximum size of buffer for incoming data, in frames. For DV, this
 is an exact value. For HDV, it is not frame exact, since HDV does
 not have a fixed frame size.
 
@@ -325,6 +563,14 @@ generated by the device.
 The first unlabelled output is automatically assigned to the "out0"
 label, but all the others need to be specified explicitly.
 
+The suffix "+subcc" can be appended to the output label to create an extra
+stream with the closed captions packets attached to that output
+(experimental; only for EIA-608 / CEA-708 for now).
+The subcc streams are created after all the normal streams, in the order of
+the corresponding stream.
+For example, if there is "out19+subcc", "out7+subcc" and up to "out42", the
+stream #43 is subcc for stream #7 and stream #44 is subcc for stream #19.
+
 If not specified defaults to the filename specified for the input
 device.
 
@@ -371,12 +617,63 @@ Read an audio stream and a video stream and play it back with
 ffplay -f lavfi "movie=test.avi[out0];amovie=test.wav[out1]"
 @end example
 
+@item
+Dump decoded frames to images and closed captions to a file (experimental):
+@example
+ffmpeg -f lavfi -i "movie=test.ts[out0+subcc]" -map v frame%08d.png -map s -c copy -f rawvideo subcc.bin
+@end example
+
 @end itemize
 
+@section libcdio
+
+Audio-CD input device based on libcdio.
+
+To enable this input device during configuration you need libcdio
+installed on your system. It requires the configure option
+@code{--enable-libcdio}.
+
+This device allows playing and grabbing from an Audio-CD.
+
+For example to copy with @command{ffmpeg} the entire Audio-CD in @file{/dev/sr0},
+you may run the command:
+@example
+ffmpeg -f libcdio -i /dev/sr0 cd.wav
+@end example
+
+@subsection Options
+@table @option
+@item speed
+Set drive reading speed. Default value is 0.
+
+The speed is specified CD-ROM speed units. The speed is set through
+the libcdio @code{cdio_cddap_speed_set} function. On many CD-ROM
+drives, specifying a value too large will result in using the fastest
+speed.
+
+@item paranoia_mode
+Set paranoia recovery mode flags. It accepts one of the following values:
+
+@table @samp
+@item disable
+@item verify
+@item overlap
+@item neverskip
+@item full
+@end table
+
+Default value is @samp{disable}.
+
+For more information about the available recovery modes, consult the
+paranoia project documentation.
+@end table
+
 @section libdc1394
 
 IIDC1394 input device, based on libdc1394 and libraw1394.
 
+Requires the configure option @code{--enable-libdc1394}.
+
 @section openal
 
 The OpenAL input device provides audio capture on all systems with a
@@ -409,7 +706,7 @@ OpenAL is part of Core Audio, the official Mac OS X Audio interface.
 See @url{http://developer.apple.com/technologies/mac/audio-and-video.html}
 @end table
 
-This device allows to capture from an audio input device handled
+This device allows one to capture from an audio input device handled
 through OpenAL.
 
 You need to specify the name of the device to capture in the provided
@@ -531,6 +828,33 @@ Record a stream from default device:
 ffmpeg -f pulse -i default /tmp/pulse.wav
 @end example
 
+@section qtkit
+
+QTKit input device.
+
+The filename passed as input is parsed to contain either a device name or index.
+The device index can also be given by using -video_device_index.
+A given device index will override any given device name.
+If the desired device consists of numbers only, use -video_device_index to identify it.
+The default device will be chosen if an empty string  or the device name "default" is given.
+The available devices can be enumerated by using -list_devices.
+
+@example
+ffmpeg -f qtkit -i "0" out.mpg
+@end example
+
+@example
+ffmpeg -f qtkit -video_device_index 0 -i "" out.mpg
+@end example
+
+@example
+ffmpeg -f qtkit -i "default" out.mpg
+@end example
+
+@example
+ffmpeg -f qtkit -list_devices true -i ""
+@end example
+
 @section sndio
 
 sndio input device.
@@ -617,7 +941,7 @@ Select the pixel format (only valid for raw video input).
 
 @item input_format
 Set the preferred pixel format (for raw video) or a codec name.
-This option allows to select the input format, when several are
+This option allows one to select the input format, when several are
 available.
 
 @item framerate
@@ -678,7 +1002,14 @@ other filename will be interpreted as device number 0.
 
 X11 video input device.
 
-This device allows to capture a region of an X11 display.
+To enable this input device during configuration you need libxcb
+installed on your system. It will be automatically detected during
+configuration.
+
+Alternatively, the configure option @option{--enable-x11grab} exists
+for legacy Xlib users.
+
+This device allows one to capture a region of an X11 display.
 
 The filename passed as input has the syntax:
 @example
@@ -694,10 +1025,12 @@ omitted, and defaults to "localhost". The environment variable
 area with respect to the top-left border of the X11 screen. They
 default to 0.
 
-Check the X11 documentation (e.g. man X) for more detailed information.
+Check the X11 documentation (e.g. @command{man X}) for more detailed
+information.
 
-Use the @command{dpyinfo} program for getting basic information about the
-properties of your X11 display (e.g. grep for "name" or "dimensions").
+Use the @command{xdpyinfo} program for getting basic information about
+the properties of your X11 display (e.g. grep for "name" or
+"dimensions").
 
 For example to grab from @file{:0.0} using @command{ffmpeg}:
 @example
@@ -746,6 +1079,10 @@ If @var{show_region} is specified with @code{1}, then the grabbing
 region will be indicated on screen. With this option, it is easy to
 know what is being grabbed if only a portion of the screen is grabbed.
 
+@item region_border
+Set the region border thickness if @option{-show_region 1} is used.
+Range is 1 to 128 and default is 3 (XCB-based x11grab only).
+
 For example:
 @example
 ffmpeg -f x11grab -show_region 1 -framerate 25 -video_size cif -i :0.0+10,20 out.mpg
@@ -758,6 +1095,103 @@ ffmpeg -f x11grab -follow_mouse centered -show_region 1 -framerate 25 -video_siz
 
 @item video_size
 Set the video frame size. Default value is @code{vga}.
+
+@item use_shm
+Use the MIT-SHM extension for shared memory. Default value is @code{1}.
+It may be necessary to disable it for remote displays (legacy x11grab
+only).
 @end table
 
+@subsection @var{grab_x} @var{grab_y} AVOption
+
+The syntax is:
+@example
+-grab_x @var{x_offset} -grab_y @var{y_offset}
+@end example
+
+Set the grabbing region coordinates. They are expressed as offset from the top left
+corner of the X11 window. The default value is 0.
+
+@section decklink
+
+The decklink input device provides capture capabilities for Blackmagic
+DeckLink devices.
+
+To enable this input device, you need the Blackmagic DeckLink SDK and you
+need to configure with the appropriate @code{--extra-cflags}
+and @code{--extra-ldflags}.
+On Windows, you need to run the IDL files through @command{widl}.
+
+DeckLink is very picky about the formats it supports. Pixel format is
+uyvy422 or v210, framerate and video size must be determined for your device with
+@command{-list_formats 1}. Audio sample rate is always 48 kHz and the number
+of channels can be 2, 8 or 16.
+
+@subsection Options
+
+@table @option
+
+@item list_devices
+If set to @option{true}, print a list of devices and exit.
+Defaults to @option{false}.
+
+@item list_formats
+If set to @option{true}, print a list of supported formats and exit.
+Defaults to @option{false}.
+
+@item bm_v210
+If set to @samp{1}, video is captured in 10 bit v210 instead
+of uyvy422. Not all Blackmagic devices support this option.
+
+@item bm_channels <CHANNELS>
+Number of audio channels, can be 2, 8 or 16
+
+@item bm_audiodepth <BITDEPTH>
+Audio bit depth, can be 16 or 32.
+
+@end table
+
+@subsection Examples
+
+@itemize
+
+@item
+List input devices:
+@example
+ffmpeg -f decklink -list_devices 1 -i dummy
+@end example
+
+@item
+List supported formats:
+@example
+ffmpeg -f decklink -list_formats 1 -i 'Intensity Pro'
+@end example
+
+@item
+Capture video clip at 1080i50 (format 11):
+@example
+ffmpeg -f decklink -i 'Intensity Pro@@11' -acodec copy -vcodec copy output.avi
+@end example
+
+@item
+Capture video clip at 1080i50 10 bit:
+@example
+ffmpeg -bm_v210 1 -f decklink -i 'UltraStudio Mini Recorder@@11' -acodec copy -vcodec copy output.avi
+@end example
+
+@item
+Capture video clip at 720p50 with 32bit audio:
+@example
+ffmpeg -bm_audiodepth 32 -f decklink -i 'UltraStudio Mini Recorder@@14' -acodec copy -vcodec copy output.avi
+@end example
+
+@item
+Capture video clip at 576i50 with 8 audio channels:
+@example
+ffmpeg -bm_channels 8 -f decklink -i 'UltraStudio Mini Recorder@@3' -acodec copy -vcodec copy output.avi
+@end example
+
+@end itemize
+
+
 @c man end INPUT DEVICES

doc/issue_tracker.txt

@@ -22,7 +22,7 @@ a mail for every change to every issue.
 (the above does all work already after light testing)
 
 The subscription URL for the ffmpeg-trac list is:
-http(s)://ffmpeg.org/mailman/listinfo/ffmpeg-trac
+http(s)://lists.ffmpeg.org/mailman/listinfo/ffmpeg-trac
 The URL of the webinterface of the tracker is:
 http(s)://trac.ffmpeg.org
 

doc/libavcodec.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Libavcodec Documentation
 @titlepage

doc/libavdevice.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Libavdevice Documentation
 @titlepage

doc/libavfilter.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Libavfilter Documentation
 @titlepage

doc/libavformat.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Libavformat Documentation
 @titlepage

doc/libavutil.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Libavutil Documentation
 @titlepage

doc/libswresample.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Libswresample Documentation
 @titlepage

doc/libswscale.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Libswscale Documentation
 @titlepage

doc/muxers.texi

@@ -194,15 +194,19 @@ can not be smaller than one centi second.
 Apple HTTP Live Streaming muxer that segments MPEG-TS according to
 the HTTP Live Streaming (HLS) specification.
 
-It creates a playlist file and numbered segment files. The output
-filename specifies the playlist filename; the segment filenames
-receive the same basename as the playlist, a sequential number and
-a .ts extension.
+It creates a playlist file, and one or more segment files. The output filename
+specifies the playlist filename.
+
+By default, the muxer creates a file for each segment produced. These files
+have the same name as the playlist, followed by a sequential number and a
+.ts extension.
 
 For example, to convert an input file with @command{ffmpeg}:
 @example
 ffmpeg -i in.nut out.m3u8
 @end example
+This example will produce the playlist, @file{out.m3u8}, and segment files:
+@file{out0.ts}, @file{out1.ts}, @file{out2.ts}, etc.
 
 See also the @ref{segment} muxer, which provides a more generic and
 flexible implementation of a segmenter, and can be used to perform HLS
@@ -220,6 +224,11 @@ Set the segment length in seconds. Default value is 2.
 Set the maximum number of playlist entries. If set to 0 the list file
 will contain all the segments. Default value is 5.
 
+@item hls_ts_options @var{options_list}
+Set output format options using a :-separated list of key=value
+parameters. Values containing @code{:} special characters must be
+escaped.
+
 @item hls_wrap @var{wrap}
 Set the number after which the segment filename number (the number
 specified in each segment file) wraps. If set to 0 the number will be
@@ -233,10 +242,41 @@ to @var{wrap}.
 Start the playlist sequence number from @var{number}. Default value is
 0.
 
+@item hls_allow_cache @var{allowcache}
+Explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments.
+
+@item hls_base_url @var{baseurl}
+Append @var{baseurl} to every entry in the playlist.
+Useful to generate playlists with absolute paths.
+
 Note that the playlist sequence number must be unique for each segment
 and it is not to be confused with the segment filename sequence number
 which can be cyclic, for example if the @option{wrap} option is
 specified.
+
+@item hls_segment_filename @var{filename}
+Set the segment filename. Unless hls_flags single_file is set @var{filename}
+is used as a string format with the segment number:
+@example
+ffmpeg in.nut -hls_segment_filename 'file%03d.ts' out.m3u8
+@end example
+This example will produce the playlist, @file{out.m3u8}, and segment files:
+@file{file000.ts}, @file{file001.ts}, @file{file002.ts}, etc.
+
+@item hls_flags single_file
+If this flag is set, the muxer will store all segments in a single MPEG-TS
+file, and will use byte ranges in the playlist. HLS playlists generated with
+this way will have the version number 4.
+For example:
+@example
+ffmpeg -i in.nut -hls_flags single_file out.m3u8
+@end example
+Will produce the playlist, @file{out.m3u8}, and a single segment file,
+@file{out.ts}.
+
+@item hls_flags delete_segments
+Segment files removed from the playlist are deleted after a period of time
+equal to the duration of the segment plus the duration of the playlist.
 @end table
 
 @anchor{ico}
@@ -341,8 +381,7 @@ ffmpeg -f v4l2 -r 1 -i /dev/video0 -f image2 -strftime 1 "%Y-%m-%d_%H-%M-%S.jpg"
 
 @table @option
 @item start_number
-Start the sequence from the specified number. Default value is 1. Must
-be a non-negative number.
+Start the sequence from the specified number. Default value is 0.
 
 @item update
 If set to 1, the filename will always be interpreted as just a
@@ -532,7 +571,6 @@ a short portion of the file. With this option set, there is no initial
 mdat atom, and the moov atom only describes the tracks but has
 a zero duration.
 
-Files written with this option set do not work in QuickTime.
 This option is implicitly set when writing ismv (Smooth Streaming) files.
 @item -movflags separate_moof
 Write a separate moof (movie fragment) atom for each track. Normally,
@@ -547,6 +585,22 @@ This operation can take a while, and will not work in various situations such
 as fragmented output, thus it is not enabled by default.
 @item -movflags rtphint
 Add RTP hinting tracks to the output file.
+@item -movflags disable_chpl
+Disable Nero chapter markers (chpl atom).  Normally, both Nero chapters
+and a QuickTime chapter track are written to the file. With this option
+set, only the QuickTime chapter track will be written. Nero chapters can
+cause failures when the file is reprocessed with certain tagging programs, like
+mp3Tag 2.61a and iTunes 11.3, most likely other versions are affected as well.
+@item -movflags omit_tfhd_offset
+Do not write any absolute base_data_offset in tfhd atoms. This avoids
+tying fragments to absolute byte positions in the file/streams.
+@item -movflags default_base_moof
+Similarly to the omit_tfhd_offset, this flag avoids writing the
+absolute base_data_offset field in tfhd atoms, but does so by using
+the new default-base-is-moof flag instead. This flag is new from
+14496-12:2012. This may make the fragments easier to parse in certain
+circumstances (avoiding basing track fragment location calculations
+on the implicit end of the previous track fragment).
 @end table
 
 @subsection Example
@@ -559,29 +613,38 @@ ffmpeg -re @var{<normal input/transcoding options>} -movflags isml+frag_keyframe
 
 @section mp3
 
-The MP3 muxer writes a raw MP3 stream with an ID3v2 header at the beginning and
-optionally an ID3v1 tag at the end. ID3v2.3 and ID3v2.4 are supported, the
-@code{id3v2_version} option controls which one is used. Setting
-@code{id3v2_version} to 0 will disable the ID3v2 header completely. The legacy
-ID3v1 tag is not written by default, but may be enabled with the
-@code{write_id3v1} option.
+The MP3 muxer writes a raw MP3 stream with the following optional features:
+@itemize @bullet
+@item
+An ID3v2 metadata header at the beginning (enabled by default). Versions 2.3 and
+2.4 are supported, the @code{id3v2_version} private option controls which one is
+used (3 or 4). Setting @code{id3v2_version} to 0 disables the ID3v2 header
+completely.
 
-The muxer may also write a Xing frame at the beginning, which contains the
-number of frames in the file. It is useful for computing duration of VBR files.
-The Xing frame is written if the output stream is seekable and if the
-@code{write_xing} option is set to 1 (the default).
-
-The muxer supports writing ID3v2 attached pictures (APIC frames). The pictures
-are supplied to the muxer in form of a video stream with a single packet. There
-can be any number of those streams, each will correspond to a single APIC frame.
-The stream metadata tags @var{title} and @var{comment} map to APIC
-@var{description} and @var{picture type} respectively. See
+The muxer supports writing attached pictures (APIC frames) to the ID3v2 header.
+The pictures are supplied to the muxer in form of a video stream with a single
+packet. There can be any number of those streams, each will correspond to a
+single APIC frame.  The stream metadata tags @var{title} and @var{comment} map
+to APIC @var{description} and @var{picture type} respectively. See
 @url{http://id3.org/id3v2.4.0-frames} for allowed picture types.
 
 Note that the APIC frames must be written at the beginning, so the muxer will
 buffer the audio frames until it gets all the pictures. It is therefore advised
 to provide the pictures as soon as possible to avoid excessive buffering.
 
+@item
+A Xing/LAME frame right after the ID3v2 header (if present). It is enabled by
+default, but will be written only if the output is seekable. The
+@code{write_xing} private option can be used to disable it.  The frame contains
+various information that may be useful to the decoder, like the audio duration
+or encoder delay.
+
+@item
+A legacy ID3v1 tag at the end of the file (disabled by default). It may be
+enabled with the @code{write_id3v1} private option, but as its capabilities are
+very limited, its usage is not recommended.
+@end itemize
+
 Examples:
 
 Write an mp3 with an ID3v2.3 header and an ID3v1 footer:
@@ -626,6 +689,9 @@ Set the transport_stream_id (default 0x0001). This identifies a
 transponder in DVB.
 @item -mpegts_service_id @var{number}
 Set the service_id (default 0x0001) also known as program in DVB.
+@item -mpegts_service_type @var{number}
+Set the program service_type (default @var{digital_tv}), see below
+a list of pre defined values.
 @item -mpegts_pmt_start_pid @var{number}
 Set the first PID for PMT (default 0x1000, max 0x1f00).
 @item -mpegts_start_pid @var{number}
@@ -633,7 +699,10 @@ Set the first PID for data packets (default 0x0100, max 0x0f00).
 @item -mpegts_m2ts_mode @var{number}
 Enable m2ts mode if set to 1. Default value is -1 which disables m2ts mode.
 @item -muxrate @var{number}
-Set muxrate.
+Set a constant muxrate (default VBR).
+@item -pcr_period @var{numer}
+Override the default PCR retransmission time (default 20ms), ignored
+if variable muxrate is selected.
 @item -pes_payload_size @var{number}
 Set minimum PES packet payload in bytes.
 @item -mpegts_flags @var{flags}
@@ -657,6 +726,27 @@ ffmpeg -i source2.ts -codec copy -f mpegts -tables_version 1 udp://1.1.1.1:1111
 @end example
 @end table
 
+Option mpegts_service_type accepts the following values:
+
+@table @option
+@item hex_value
+Any hexdecimal value between 0x01 to 0xff as defined in ETSI 300 468.
+@item digital_tv
+Digital TV service.
+@item digital_radio
+Digital Radio service.
+@item teletext
+Teletext service.
+@item advanced_codec_digital_radio
+Advanced Codec Digital Radio service.
+@item mpeg2_digital_hdtv
+MPEG2 Digital HDTV service.
+@item advanced_codec_digital_sdtv
+Advanced Codec Digital SDTV service.
+@item advanced_codec_digital_hdtv
+Advanced Codec Digital HDTV service.
+@end table
+
 Option mpegts_flags may take a set of such flags:
 
 @table @option
@@ -702,6 +792,30 @@ Alternatively you can write the command as:
 ffmpeg -benchmark -i INPUT -f null -
 @end example
 
+@section nut
+
+@table @option
+@item -syncpoints @var{flags}
+Change the syncpoint usage in nut:
+@table @option
+@item @var{default} use the normal low-overhead seeking aids.
+@item @var{none} do not use the syncpoints at all, reducing the overhead but making the stream non-seekable;
+    Use of this option is not recommended, as the resulting files are very damage
+    sensitive and seeking is not possible. Also in general the overhead from
+    syncpoints is negligible. Note, -@code{write_index} 0 can be used to disable
+    all growing data tables, allowing to mux endless streams with limited memory
+    and without these disadvantages.
+@item @var{timestamped} extend the syncpoint with a wallclock field.
+@end table
+The @var{none} and @var{timestamped} flags are experimental.
+@item -write_index @var{bool}
+Write index at the end, the default is to write an index.
+@end table
+
+@example
+ffmpeg -i INPUT -f_strict experimental -syncpoints none - | processor
+@end example
+
 @section ogg
 
 Ogg container muxer.
@@ -715,6 +829,11 @@ is 1 second. A value of 0 will fill all segments, making pages as large as
 possible. A value of 1 will effectively use 1 packet-per-page in most
 situations, giving a small seek granularity at the cost of additional container
 overhead.
+@item -serial_offset @var{value}
+Serial value from which to set the streams serial number.
+Setting it to different and sufficiently large values ensures that the produced
+ogg files can be safely chained.
+
 @end table
 
 @anchor{segment}
@@ -723,8 +842,9 @@ overhead.
 Basic stream segmenter.
 
 This muxer outputs streams to a number of separate files of nearly
-fixed duration. Output filename pattern can be set in a fashion similar to
-@ref{image2}.
+fixed duration. Output filename pattern can be set in a fashion
+similar to @ref{image2}, or by using a @code{strftime} template if
+the @option{strftime} option is enabled.
 
 @code{stream_segment} is a variant of the muxer used to write to
 streaming output formats, i.e. which do not require global headers,
@@ -758,7 +878,7 @@ The segment muxer supports the following options:
 @table @option
 @item reference_stream @var{specifier}
 Set the reference stream, as specified by the string @var{specifier}.
-If @var{specifier} is set to @code{auto}, the reference is choosen
+If @var{specifier} is set to @code{auto}, the reference is chosen
 automatically. Otherwise it must be a stream specifier (see the ``Stream
 specifiers'' chapter in the ffmpeg manual) which specifies the
 reference stream. The default value is @code{auto}.
@@ -767,6 +887,11 @@ reference stream. The default value is @code{auto}.
 Override the inner container format, by default it is guessed by the filename
 extension.
 
+@item segment_format_options @var{options_list}
+Set output format options using a :-separated list of key=value
+parameters. Values containing the @code{:} special character must be
+escaped.
+
 @item segment_list @var{name}
 Generate also a listfile named @var{name}. If not specified no
 listfile is generated.
@@ -783,17 +908,21 @@ Allow caching (only affects M3U8 list files).
 Allow live-friendly file generation.
 @end table
 
+@item segment_list_type @var{type}
+Select the listing format.
+@table @option
+@item @var{flat} use a simple flat list of entries.
+@item @var{hls} use a m3u8-like structure.
+@end table
+
 @item segment_list_size @var{size}
-Update the list file so that it contains at most the last @var{size}
+Update the list file so that it contains at most @var{size}
 segments. If 0 the list file will contain all the segments. Default
 value is 0.
 
 @item segment_list_entry_prefix @var{prefix}
-Set @var{prefix} to prepend to the name of each entry filename. By
-default no prefix is applied.
-
-@item segment_list_type @var{type}
-Specify the format for the segment list file.
+Prepend @var{prefix} to each entry. Useful to generate absolute paths.
+By default no prefix is applied.
 
 The following values are recognized:
 @table @samp
@@ -844,6 +973,16 @@ Note that splitting may not be accurate, unless you force the
 reference stream key-frames at the given time. See the introductory
 notice and the examples below.
 
+@item segment_atclocktime @var{1|0}
+If set to "1" split at regular clock time intervals starting from 00:00
+o'clock. The @var{time} value specified in @option{segment_time} is
+used for setting the length of the splitting interval.
+
+For example with @option{segment_time} set to "900" this makes it possible
+to create files at 12:00 o'clock, 12:15, 12:30, etc.
+
+Default value is "0".
+
 @item segment_time_delta @var{delta}
 Specify the accuracy time when selecting the start time for a
 segment, expressed as a duration specification. Default value is "0".
@@ -885,6 +1024,12 @@ Wrap around segment index once it reaches @var{limit}.
 @item segment_start_number @var{number}
 Set the sequence number of the first segment. Defaults to @code{0}.
 
+@item strftime @var{1|0}
+Use the @code{strftime} function to define the name of the new
+segments to write. If this is selected, the output segment name must
+contain a @code{strftime} function template. Default value is
+@code{0}.
+
 @item reset_timestamps @var{1|0}
 Reset timestamps at the begin of each segment, so that each segment
 will start with near-zero timestamps. It is meant to ease the playback
@@ -900,7 +1045,7 @@ argument must be a time duration specification, and defaults to 0.
 
 @itemize
 @item
-To remux the content of file @file{in.mkv} to a list of segments
+Remux the content of file @file{in.mkv} to a list of segments
 @file{out-000.nut}, @file{out-001.nut}, etc., and write the list of
 generated segments to @file{out.list}:
 @example
@@ -908,14 +1053,20 @@ ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.list out%03d.nu
 @end example
 
 @item
-As the example above, but segment the input file according to the split
-points specified by the @var{segment_times} option:
+Segment input and set output format options for the output segments:
+@example
+ffmpeg -i in.mkv -f segment -segment_time 10 -segment_format_options movflags=+faststart out%03d.mp4
+@end example
+
+@item
+Segment the input file according to the split points specified by the
+@var{segment_times} option:
 @example
 ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.csv -segment_times 1,2,3,5,8,13,21 out%03d.nut
 @end example
 
 @item
-As the example above, but use the @command{ffmpeg} @option{force_key_frames}
+Use the @command{ffmpeg} @option{force_key_frames}
 option to force key frames in the input at the specified location, together
 with the segment option @option{segment_time_delta} to account for
 possible roundings operated when setting key frame times.
@@ -934,7 +1085,7 @@ ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.csv -segment_fr
 @end example
 
 @item
-To convert the @file{in.mkv} to TS segments using the @code{libx264}
+Convert the @file{in.mkv} to TS segments using the @code{libx264}
 and @code{libfaac} encoders:
 @example
 ffmpeg -i in.mkv -map 0 -codec:v libx264 -codec:a libfaac -f ssegment -segment_list out.list out%03d.ts
@@ -949,6 +1100,28 @@ ffmpeg -re -i in.mkv -codec copy -map 0 -f segment -segment_list playlist.m3u8 \
 @end example
 @end itemize
 
+@section smoothstreaming
+
+Smooth Streaming muxer generates a set of files (Manifest, chunks) suitable for serving with conventional web server.
+
+@table @option
+@item window_size
+Specify the number of fragments kept in the manifest. Default 0 (keep all).
+
+@item extra_window_size
+Specify the number of fragments kept outside of the manifest before removing from disk. Default 5.
+
+@item lookahead_count
+Specify the number of lookahead fragments. Default 2.
+
+@item min_frag_duration
+Specify the minimum fragment duration (in microseconds). Default 5000000.
+
+@item remove_at_exit
+Specify whether to remove all fragments when finished. Default 0 (do not remove).
+
+@end table
+
 @section tee
 
 The tee muxer can be used to write the same data to several files or any
@@ -986,7 +1159,7 @@ It is possible to specify to which streams a given bitstream filter
 applies, by appending a stream specifier to the option separated by
 @code{/}. @var{spec} must be a stream specifier (see @ref{Format
 stream specifiers}).  If the stream specifier is not specified, the
-bistream filters will be applied to all streams in the output.
+bitstream filters will be applied to all streams in the output.
 
 Several bitstream filters can be specified, separated by ",".
 
@@ -1033,4 +1206,34 @@ Note: some codecs may need different options depending on the output format;
 the auto-detection of this can not work with the tee muxer. The main example
 is the @option{global_header} flag.
 
+@section webm_dash_manifest
+
+WebM DASH Manifest muxer.
+
+This muxer implements the WebM DASH Manifest specification to generate the DASH manifest XML.
+
+@subsection Options
+
+This muxer supports the following options:
+
+@table @option
+@item adaptation_sets
+This option has the following syntax: "id=x,streams=a,b,c id=y,streams=d,e" where x and y are the
+unique identifiers of the adaptation sets and a,b,c,d and e are the indices of the corresponding
+audio and video streams. Any number of adaptation sets can be added using this option.
+@end table
+
+@subsection Example
+@example
+ffmpeg -f webm_dash_manifest -i video1.webm \
+       -f webm_dash_manifest -i video2.webm \
+       -f webm_dash_manifest -i audio1.webm \
+       -f webm_dash_manifest -i audio2.webm \
+       -map 0 -map 1 -map 2 -map 3 \
+       -c copy \
+       -f webm_dash_manifest \
+       -adaptation_sets "id=0,streams=0,1 id=1,streams=2,3" \
+       manifest.xml
+@end example
+
 @c man end MUXERS

doc/nut.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle NUT
 
@@ -21,6 +22,27 @@ The official nut specification is at svn://svn.mplayerhq.hu/nut
 In case of any differences between this text and the official specification,
 the official specification shall prevail.
 
+@chapter Modes
+NUT has some variants signaled by using the flags field in its main header.
+
+@multitable @columnfractions .4 .4
+@item BROADCAST   @tab Extend the syncpoint to report the sender wallclock
+@item PIPE        @tab Omit completely the syncpoint
+@end multitable
+
+@section BROADCAST
+
+The BROADCAST variant provides a secondary time reference to facilitate
+detecting endpoint latency and network delays.
+It assumes all the endpoint clocks are syncronized.
+To be used in real-time scenarios.
+
+@section PIPE
+
+The PIPE variant assumes NUT is used as non-seekable intermediate container,
+by not using syncpoint removes unneeded overhead and reduces the overall
+memory usage.
+
 @chapter Container-specific codec tags
 
 @section Generic raw YUVA formats

doc/optimization.txt

@@ -79,9 +79,6 @@ qpel{8,16}_mc??_old_c / *pixels{8,16}_l4
     Just used to work around a bug in an old libavcodec encoder version.
     Don't optimize them.
 
-tpel_mc_func {put,avg}_tpel_pixels_tab
-    Used only for SVQ3, so only optimize them if you need fast SVQ3 decoding.
-
 add_bytes/diff_bytes
     For huffyuv only, optimize if you want a faster ffhuffyuv codec.
 
@@ -139,9 +136,6 @@ dct_unquantize_mpeg2
 dct_unquantize_h263
     Used in MPEG-4/H.263 en/decoding.
 
-FIXME remaining functions?
-BTW, most of these functions are in dsputil.c/.h, some are in mpegvideo.c/.h.
-
 
 
 Alignment:
@@ -197,6 +191,11 @@ __asm__() block.
 Use external asm (nasm/yasm) or inline asm (__asm__()), do not use intrinsics.
 The latter requires a good optimizing compiler which gcc is not.
 
+When debugging a x86 external asm compilation issue, if lost in the macro
+expansions, add DBG=1 to your make command-line: the input file will be
+preprocessed, stripped of the debug/empty lines, then compiled, showing the
+actual lines causing issues.
+
 Inline asm vs. external asm
 ---------------------------
 Both inline asm (__asm__("..") in a .c file, handled by a compiler such as gcc)
@@ -268,17 +267,6 @@ CELL/SPU:
 http://www-01.ibm.com/chips/techlib/techlib.nsf/techdocs/30B3520C93F437AB87257060006FFE5E/$file/Language_Extensions_for_CBEA_2.4.pdf
 http://www-01.ibm.com/chips/techlib/techlib.nsf/techdocs/9F820A5FFA3ECE8C8725716A0062585F/$file/CBE_Handbook_v1.1_24APR2007_pub.pdf
 
-SPARC-specific:
----------------
-SPARC Joint Programming Specification (JPS1): Commonality
-http://www.fujitsu.com/downloads/PRMPWR/JPS1-R1.0.4-Common-pub.pdf
-
-UltraSPARC III Processor User's Manual (contains instruction timings)
-http://www.sun.com/processors/manuals/USIIIv2.pdf
-
-VIS Whitepaper (contains optimization guidelines)
-http://www.sun.com/processors/vis/download/vis/vis_whitepaper.pdf
-
 GCC asm links:
 --------------
 official doc but quite ugly

doc/outdevs.texi

@@ -13,8 +13,8 @@ You can disable all the output devices using the configure option
 option "--enable-outdev=@var{OUTDEV}", or you can disable a particular
 input device using the option "--disable-outdev=@var{OUTDEV}".
 
-The option "-formats" of the ff* tools will display the list of
-enabled output devices (amongst the muxers).
+The option "-devices" of the ff* tools will display the list of
+enabled output devices.
 
 A description of the currently available output devices follows.
 
@@ -42,7 +42,7 @@ ffmpeg -i INPUT -f alsa hw:1,7
 
 CACA output device.
 
-This output device allows to show a video stream in CACA window.
+This output device allows one to show a video stream in CACA window.
 Only one CACA window is allowed per application, so you can
 have only one instance of this output device in an application.
 
@@ -216,15 +216,15 @@ OpenGL output device.
 
 To enable this output device you need to configure FFmpeg with @code{--enable-opengl}.
 
-Device allows to render to OpenGL context.
+This output device allows one to render to OpenGL context.
 Context may be provided by application or default SDL window is created.
 
 When device renders to external context, application must implement handlers for following messages:
-@code{AV_CTL_MESSAGE_CREATE_WINDOW_BUFFER} - create OpenGL context on current thread.
-@code{AV_CTL_MESSAGE_PREPARE_WINDOW_BUFFER} - make OpenGL context current.
-@code{AV_CTL_MESSAGE_DISPLAY_WINDOW_BUFFER} - swap buffers.
-@code{AV_CTL_MESSAGE_DESTROY_WINDOW_BUFFER} - destroy OpenGL context.
-Application is also required to inform a device about current resolution by sending @code{AV_DEVICE_WINDOW_RESIZED} message.
+@code{AV_DEV_TO_APP_CREATE_WINDOW_BUFFER} - create OpenGL context on current thread.
+@code{AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER} - make OpenGL context current.
+@code{AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER} - swap buffers.
+@code{AV_DEV_TO_APP_DESTROY_WINDOW_BUFFER} - destroy OpenGL context.
+Application is also required to inform a device about current resolution by sending @code{AV_APP_TO_DEV_WINDOW_SIZE} message.
 
 @subsection Options
 @table @option
@@ -237,6 +237,10 @@ Application must provide OpenGL context and both @code{window_size_cb} and @code
 @item window_title
 Set the SDL window title, if not specified default to the filename specified for the output device.
 Ignored when @option{no_window} is set.
+@item window_size
+Set preferred window size, can be a string of the form widthxheight or a video size abbreviation.
+If not specified it defaults to the size of the input video, downscaled according to the aspect ratio.
+Mostly usable when @option{no_window} is not set.
 
 @end table
 
@@ -290,6 +294,20 @@ When both options are provided then the highest value is used
 are set to 0 (which is default), the device will use the default
 PulseAudio duration value. By default PulseAudio set buffer duration
 to around 2 seconds.
+
+@item prebuf
+Specify pre-buffering size in bytes. The server does not start with
+playback before at least @option{prebuf} bytes are available in the
+buffer. By default this option is initialized to the same value as
+@option{buffer_size} or @option{buffer_duration} (whichever is bigger).
+
+@item minreq
+Specify minimum request size in bytes. The server does not request less
+than @option{minreq} bytes from the client, instead waits until the buffer
+is free enough to request more bytes at once. It is recommended to not set
+this option, which will initialize this to a value that is deemed sensible
+by the server.
+
 @end table
 
 @subsection Examples
@@ -302,7 +320,7 @@ ffmpeg  -i INPUT -f pulse "stream name"
 
 SDL (Simple DirectMedia Layer) output device.
 
-This output device allows to show a video stream in an SDL
+This output device allows one to show a video stream in an SDL
 window. Only one SDL window is allowed per application, so you can
 have only one instance of this output device in an application.
 
@@ -361,7 +379,7 @@ sndio audio output device.
 
 XV (XVideo) output device.
 
-This output device allows to show a video stream in a X Window System
+This output device allows one to show a video stream in a X Window System
 window.
 
 @subsection Options
@@ -388,19 +406,26 @@ For example, @code{dual-headed:0.1} would specify screen 1 of display
 Check the X11 specification for more detailed information about the
 display name format.
 
+@item window_id
+When set to non-zero value then device doesn't create new window,
+but uses existing one with provided @var{window_id}. By default
+this options is set to zero and device creates its own window.
+
 @item window_size
 Set the created window size, can be a string of the form
 @var{width}x@var{height} or a video size abbreviation. If not
 specified it defaults to the size of the input video.
+Ignored when @var{window_id} is set.
 
 @item window_x
 @item window_y
 Set the X and Y window offsets for the created window. They are both
 set to 0 by default. The values may be ignored by the window manager.
+Ignored when @var{window_id} is set.
 
 @item window_title
 Set the window title, if not specified default to the filename
-specified for the output device.
+specified for the output device. Ignored when @var{window_id} is set.
 @end table
 
 For more information about XVideo see @url{http://www.x.org/}.

doc/platform.texi

@@ -1,4 +1,5 @@
 \input texinfo @c -*- texinfo -*-
+@documentencoding UTF-8
 
 @settitle Platform Specific Information
 @titlepage
@@ -24,6 +25,20 @@ If not, then you should install a different compiler that has no
 hard-coded path to gas. In the worst case pass @code{--disable-asm}
 to configure.
 
+@section Advanced linking configuration
+
+If you compiled FFmpeg libraries statically and you want to use them to
+build your own shared library, you may need to force PIC support (with
+@code{--enable-pic} during FFmpeg configure) and add the following option
+to your project LDFLAGS:
+
+@example
+-Wl,-Bsymbolic
+@end example
+
+If your target platform requires position independent binaries, you should
+pass the correct linking flag (e.g. @code{-pie}) to @code{--extra-ldexeflags}.
+
 @section BSD
 
 BSD make will not build FFmpeg, you need to install and use GNU Make
@@ -51,14 +66,15 @@ The toolchain provided with Xcode is sufficient to build the basic
 unacelerated code.
 
 Mac OS X on PowerPC or ARM (iPhone) requires a preprocessor from
-@url{http://github.com/yuvi/gas-preprocessor} to build the optimized
-assembler functions. Just download the Perl script and put it somewhere
+@url{https://github.com/FFmpeg/gas-preprocessor} or
+@url{https://github.com/yuvi/gas-preprocessor}(currently outdated) to build the optimized
+assembly functions. Put the Perl script somewhere
 in your PATH, FFmpeg's configure will pick it up automatically.
 
 Mac OS X on amd64 and x86 requires @command{yasm} to build most of the
-optimized assembler functions. @uref{http://www.finkproject.org/, Fink},
+optimized assembly functions. @uref{http://www.finkproject.org/, Fink},
 @uref{http://www.gentoo.org/proj/en/gentoo-alt/prefix/bootstrap-macos.xml, Gentoo Prefix},
-@uref{http://mxcl.github.com/homebrew/, Homebrew}
+@uref{https://mxcl.github.com/homebrew/, Homebrew}
 or @uref{http://www.macports.org, MacPorts} can easily provide it.
 
 
@@ -81,9 +97,9 @@ the FFmpeg Windows Help Forum at @url{http://ffmpeg.zeranoe.com/forum/}.
 
 @section Native Windows compilation using MinGW or MinGW-w64
 
-FFmpeg can be built to run natively on Windows using the MinGW or MinGW-w64
-toolchains. Install the latest versions of MSYS and MinGW or MinGW-w64 from
-@url{http://www.mingw.org/} or @url{http://mingw-w64.sourceforge.net/}.
+FFmpeg can be built to run natively on Windows using the MinGW-w64
+toolchain. Install the latest versions of MSYS2 and MinGW-w64 from
+@url{http://msys2.github.io/} and/or @url{http://mingw-w64.sourceforge.net/}.
 You can find detailed installation instructions in the download section and
 the FAQ.
 
@@ -91,7 +107,7 @@ Notes:
 
 @itemize
 
-@item Building natively using MSYS can be sped up by disabling implicit rules
+@item Building natively using MSYS2 can be sped up by disabling implicit rules
 in the Makefile by calling @code{make -r} instead of plain @code{make}. This
 speed up is close to non-existent for normal one-off builds and is only
 noticeable when running make for a second time (for example during
@@ -118,13 +134,12 @@ You will need the following prerequisites:
 (if using MSVC 2012 or earlier)
 @item @uref{http://code.google.com/p/msinttypes/, msinttypes}
 (if using MSVC 2012 or earlier)
-@item @uref{http://www.mingw.org/, MSYS}
+@item @uref{http://msys2.github.io/, MSYS2}
 @item @uref{http://yasm.tortall.net/, YASM}
-@item @uref{http://gnuwin32.sourceforge.net/packages/bc.htm, bc for Windows} if
-you want to run @uref{fate.html, FATE}.
+(Also available via MSYS2's package manager.)
 @end itemize
 
-To set up a proper environment in MSYS, you need to run @code{msys.bat} from
+To set up a proper environment in MSYS2, you need to run @code{msys_shell.bat} from
 the Visual Studio or Intel Compiler command prompt.
 
 Place @code{yasm.exe} somewhere in your @code{PATH}. If using MSVC 2012 or
@@ -263,12 +278,12 @@ llrint() in its C library.
 Install your Cygwin with all the "Base" packages, plus the
 following "Devel" ones:
 @example
-binutils, gcc4-core, make, git, mingw-runtime, texi2html
+binutils, gcc4-core, make, git, mingw-runtime, texinfo
 @end example
 
 In order to run FATE you will also need the following "Utils" packages:
 @example
-bc, diffutils
+diffutils
 @end example
 
 If you want to build FFmpeg with additional libraries, download Cygwin

doc/print_options.c

@@ -26,6 +26,10 @@
 #include <string.h>
 #include <float.h>
 
+// print_options is build for the host, os_support.h isn't needed and is setup
+// for the target. without this build breaks on mingw
+#define AVFORMAT_OS_SUPPORT_H
+
 #include "libavformat/avformat.h"
 #include "libavformat/options_table.h"
 #include "libavcodec/avcodec.h"

doc/protocols.texi

@@ -63,7 +63,7 @@ cache:@var{URL}
 
 Physical concatenation protocol.
 
-Allow to read and seek from many resource in sequence as if they were
+Read and seek from many resources in sequence as if they were
 a unique resource.
 
 A URL accepted by this protocol has the syntax:
@@ -117,7 +117,7 @@ ffmpeg -i "data:image/gif;base64,R0lGODdhCAAIAMIEAAAAAAAA//8AAP//AP/////////////
 
 File access protocol.
 
-Allow to read from or write to a file.
+Read from or write to a file.
 
 A file URL can have the form:
 @example
@@ -155,7 +155,7 @@ time, which is valuable for files on slow medium.
 
 FTP (File Transfer Protocol).
 
-Allow to read from or write to remote resources using FTP protocol.
+Read from or write to remote resources using FTP protocol.
 
 Following syntax is required.
 @example
@@ -166,7 +166,7 @@ This protocol accepts the following options.
 
 @table @option
 @item timeout
-Set timeout of socket I/O operations used by the underlying low level
+Set timeout in microseconds of socket I/O operations used by the underlying low level
 operation. By default it is set to -1, which means that the timeout is
 not specified.
 
@@ -213,7 +213,7 @@ m3u8 files.
 
 HTTP (Hyper Text Transfer Protocol).
 
-This protocol accepts the following options.
+This protocol accepts the following options:
 
 @table @option
 @item seekable
@@ -223,51 +223,60 @@ if set to -1 it will try to autodetect if it is seekable. Default
 value is -1.
 
 @item chunked_post
-If set to 1 use chunked transfer-encoding for posts, default is 1.
+If set to 1 use chunked Transfer-Encoding for posts, default is 1.
+
+@item content_type
+Set a specific content type for the POST messages.
 
 @item headers
 Set custom HTTP headers, can override built in default headers. The
 value must be a string encoding the headers.
 
-@item content_type
-Force a content type.
-
-@item user-agent
-Override User-Agent header. If not specified the protocol will use a
-string describing the libavformat build.
-
 @item multiple_requests
-Use persistent connections if set to 1. By default it is 0.
+Use persistent connections if set to 1, default is 0.
 
 @item post_data
 Set custom HTTP post data.
 
+@item user-agent
+@item user_agent
+Override the User-Agent header. If not specified the protocol will use a
+string describing the libavformat build. ("Lavf/<version>")
+
 @item timeout
-Set timeout of socket I/O operations used by the underlying low level
+Set timeout in microseconds of socket I/O operations used by the underlying low level
 operation. By default it is set to -1, which means that the timeout is
 not specified.
 
 @item mime_type
-Set MIME type.
+Export the MIME type.
 
 @item icy
 If set to 1 request ICY (SHOUTcast) metadata from the server. If the server
 supports this, the metadata has to be retrieved by the application by reading
 the @option{icy_metadata_headers} and @option{icy_metadata_packet} options.
-The default is 0.
+The default is 1.
 
 @item icy_metadata_headers
-If the server supports ICY metadata, this contains the ICY specific HTTP reply
-headers, separated with newline characters.
+If the server supports ICY metadata, this contains the ICY-specific HTTP reply
+headers, separated by newline characters.
 
 @item icy_metadata_packet
 If the server supports ICY metadata, and @option{icy} was set to 1, this
-contains the last non-empty metadata packet sent by the server.
+contains the last non-empty metadata packet sent by the server. It should be
+polled in regular intervals by applications interested in mid-stream metadata
+updates.
 
 @item cookies
 Set the cookies to be sent in future requests. The format of each cookie is the
 same as the value of a Set-Cookie HTTP response field. Multiple cookies can be
 delimited by a newline character.
+
+@item offset
+Set initial byte offset.
+
+@item end_offset
+Try to limit the request to bytes preceding this offset.
 @end table
 
 @subsection HTTP Cookies
@@ -284,6 +293,50 @@ The required syntax to play a stream specifying a cookie is:
 ffplay -cookies "nlqptid=nltid=tsn; path=/; domain=somedomain.com;" http://somedomain.com/somestream.m3u8
 @end example
 
+@section Icecast
+
+Icecast protocol (stream to Icecast servers)
+
+This protocol accepts the following options:
+
+@table @option
+@item ice_genre
+Set the stream genre.
+
+@item ice_name
+Set the stream name.
+
+@item ice_description
+Set the stream description.
+
+@item ice_url
+Set the stream website URL.
+
+@item ice_public
+Set if the stream should be public.
+The default is 0 (not public).
+
+@item user_agent
+Override the User-Agent header. If not specified a string of the form
+"Lavf/<version>" will be used.
+
+@item password
+Set the Icecast mountpoint password.
+
+@item content_type
+Set the stream content type. This must be set if it is different from
+audio/mpeg.
+
+@item legacy_icecast
+This enables support for Icecast versions < 2.4.0, that do not support the
+HTTP PUT method but the SOURCE method.
+
+@end table
+
+@example
+icecast://[@var{username}[:@var{password}]@@]@var{server}:@var{port}/@var{mountpoint}
+@end example
+
 @section mmst
 
 MMS (Microsoft Media Server) protocol over TCP.
@@ -321,7 +374,7 @@ be seekable, so they will fail with the MD5 output protocol.
 
 UNIX pipe access protocol.
 
-Allow to read and write from UNIX pipes.
+Read and write from UNIX pipes.
 
 The accepted syntax is:
 @example
@@ -528,11 +581,40 @@ The Real-Time Messaging Protocol tunneled through HTTPS (RTMPTS) is used
 for streaming multimedia content within HTTPS requests to traverse
 firewalls.
 
+@section libsmbclient
+
+libsmbclient permits one to manipulate CIFS/SMB network resources.
+
+Following syntax is required.
+
+@example
+smb://[[domain:]user[:password@@]]server[/share[/path[/file]]]
+@end example
+
+This protocol accepts the following options.
+
+@table @option
+@item timeout
+Set timeout in miliseconds of socket I/O operations used by the underlying
+low level operation. By default it is set to -1, which means that the timeout
+is not specified.
+
+@item truncate
+Truncate existing files on write, if set to 1. A value of 0 prevents
+truncating. Default value is 1.
+
+@item workgroup
+Set the workgroup used for making connections. By default workgroup is not specified.
+
+@end table
+
+For more information see: @url{http://www.samba.org/}.
+
 @section libssh
 
 Secure File Transfer Protocol via libssh
 
-Allow to read from or write to remote resources using SFTP protocol.
+Read from or write to remote resources using SFTP protocol.
 
 Following syntax is required.
 
@@ -668,7 +750,7 @@ port will be used for the local RTP and RTCP ports.
 
 @item
 If @option{localrtcpport} (the local RTCP port) is not set it will be
-set to the the local RTP port value plus 1.
+set to the local RTP port value plus 1.
 @end enumerate
 
 @section rtsp
@@ -682,7 +764,7 @@ data transferred over RDT).
 
 The muxer can be used to send a stream using RTSP ANNOUNCE to a server
 supporting it (currently Darwin Streaming Server and Mischa Spiegelmock's
-@uref{http://github.com/revmischa/rtsp-server, RTSP server}).
+@uref{https://github.com/revmischa/rtsp-server, RTSP server}).
 
 The required syntax for a RTSP url is:
 @example
@@ -701,7 +783,7 @@ Do not start playing the stream immediately if set to 1. Default value
 is 0.
 
 @item rtsp_transport
-Set RTSP trasport protocols.
+Set RTSP transport protocols.
 
 It accepts the following values:
 @table @samp
@@ -733,6 +815,8 @@ The following values are accepted:
 Accept packets only from negotiated peer address and port.
 @item listen
 Act as a server, listening for an incoming connection.
+@item prefer_tcp
+Try TCP for RTP transport first, if TCP is available as RTSP RTP transport.
 @end table
 
 Default value is @samp{none}.
@@ -758,17 +842,17 @@ Set maximum local UDP port. Default value is 65000.
 @item timeout
 Set maximum timeout (in seconds) to wait for incoming connections.
 
-A value of -1 mean infinite (default). This option implies the
+A value of -1 means infinite (default). This option implies the
 @option{rtsp_flags} set to @samp{listen}.
 
 @item reorder_queue_size
 Set number of packets to buffer for handling of reordered packets.
 
 @item stimeout
-Set socket TCP I/O timeout in micro seconds.
+Set socket TCP I/O timeout in microseconds.
 
 @item user-agent
-Override User-Agent header. If not specified, it default to the
+Override User-Agent header. If not specified, it defaults to the
 libavformat identifier string.
 @end table
 
@@ -949,9 +1033,33 @@ this binary block are used as master key, the following 14 bytes are
 used as master salt.
 @end table
 
+@section subfile
+
+Virtually extract a segment of a file or another stream.
+The underlying stream must be seekable.
+
+Accepted options:
+@table @option
+@item start
+Start offset of the extracted segment, in bytes.
+@item end
+End offset of the extracted segment, in bytes.
+@end table
+
+Examples:
+
+Extract a chapter from a DVD VOB file (start and end sectors obtained
+externally and multiplied by 2048):
+@example
+subfile,,start,153391104,end,268142592,,:/media/dvd/VIDEO_TS/VTS_08_1.VOB
+@end example
+
+Play an AVI file directly from a TAR archive:
+subfile,,start,183241728,end,366490624,,:archive.tar
+
 @section tcp
 
-Trasmission Control Protocol.
+Transmission Control Protocol.
 
 The required syntax for a TCP url is:
 @example
@@ -973,8 +1081,8 @@ Set raise error timeout, expressed in microseconds.
 This option is only relevant in read mode: if no data arrived in more
 than this time interval, raise error.
 
-@item listen_timeout=@var{microseconds}
-Set listen timeout, expressed in microseconds.
+@item listen_timeout=@var{milliseconds}
+Set listen timeout, expressed in milliseconds.
 @end table
 
 The following example shows how to setup a listening TCP connection
@@ -1057,7 +1165,7 @@ udp://@var{hostname}:@var{port}[?@var{options}]
 @var{options} contains a list of &-separated options of the form @var{key}=@var{val}.
 
 In case threading is enabled on the system, a circular buffer is used
-to store the incoming data, which allows to reduce loss of data due to
+to store the incoming data, which allows one to reduce loss of data due to
 UDP socket buffer overruns. The @var{fifo_size} and
 @var{overrun_nonfatal} options are related to this buffer.
 
@@ -1065,8 +1173,9 @@ The list of supported options follows.
 
 @table @option
 @item buffer_size=@var{size}
-Set the UDP socket buffer size in bytes. This is used both for the
-receiving and the sending buffer size.
+Set the UDP maximum socket buffer size in bytes. This is used to set either
+the receive or send buffer size, depending on what the socket is used for.
+Default is 64KB.  See also @var{fifo_size}.
 
 @item localport=@var{port}
 Override the local UDP port to bind with.
@@ -1117,6 +1226,12 @@ Set raise error timeout, expressed in microseconds.
 
 This option is only relevant in read mode: if no data arrived in more
 than this time interval, raise error.
+
+@item broadcast=@var{1|0}
+Explicitly allow or disallow UDP broadcasting.
+
+Note that broadcasting may not work properly on networks having
+a broadcast storm protection.
 @end table
 
 @subsection Examples

doc/scaler.texi

@@ -35,7 +35,7 @@ Select nearest neighbor rescaling algorithm.
 @item area
 Select averaging area rescaling algorithm.
 
-@item bicubiclin
+@item bicublin
 Select bicubic scaling algorithm for the luma component, bilinear for
 chroma components.
 
@@ -112,6 +112,14 @@ bayer dither
 
 @item ed
 error diffusion dither
+
+@item a_dither
+arithmetic dither, based using addition
+
+@item x_dither
+arithmetic dither, based using xor (more random/less apparent patterning that
+a_dither).
+
 @end table
 
 @end table

doc/snow.txt

@@ -618,7 +618,6 @@ flip wavelet?
 try to use the wavelet transformed predicted image (motion compensated image) as context for coding the residual coefficients
 try the MV length as context for coding the residual coefficients
 use extradata for stuff which is in the keyframes now?
-the MV median predictor is patented IIRC
 implement per picture halfpel interpolation
 try different range coder state transition tables for different contexts
 

doc/t2h.init

@@ -1,26 +1,35 @@
+# Init file for texi2html.
+
+# This is deprecated, and the makeinfo/texi2any version is doc/t2h.pm
+
 # no horiz rules between sections
 $end_section = \&FFmpeg_end_section;
 sub FFmpeg_end_section($$)
 {
 }
 
-$EXTRA_HEAD =
-'<link rel="icon" href="favicon.png" type="image/png" />
-';
-
-$CSS_LINES = $ENV{"FFMPEG_CSS"} || <<EOT;
-<link rel="stylesheet" type="text/css" href="default.css" />
+my $TEMPLATE_HEADER1 = $ENV{"FFMPEG_HEADER1"} || <<EOT;
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <title>FFmpeg documentation</title>
+    <link rel="stylesheet" href="bootstrap.min.css" />
+    <link rel="stylesheet" href="style.min.css" />
 EOT
 
-my $TEMPLATE_HEADER = $ENV{"FFMPEG_HEADER"} || <<EOT;
-<link rel="icon" href="favicon.png" type="image/png" />
-</head>
-<body>
-<div id="container">
-<div id="body">
+my $TEMPLATE_HEADER2 = $ENV{"FFMPEG_HEADER2"} || <<EOT;
+  </head>
+  <body>
+    <div style="width: 95%; margin: auto">
 EOT
 
-$PRE_BODY_CLOSE = '</div></div>';
+my $TEMPLATE_FOOTER = $ENV{"FFMPEG_FOOTER"} || <<EOT;
+    </div>
+  </body>
+</html>
+EOT
 
 $SMALL_RULE = '';
 $BODYTEXT = '';
@@ -82,21 +91,25 @@ sub FFmpeg_print_page_head($$)
     $longtitle = "FFmpeg documentation : " . $longtitle;
 
     print $fh <<EOT;
-<!DOCTYPE html>
-<html>
+$TEMPLATE_HEADER1
+$description
+<meta name="keywords" content="$longtitle">
+<meta name="Generator" content="$Texi2HTML::THISDOC{program}">
 $Texi2HTML::THISDOC{'copying'}<!-- Created on $Texi2HTML::THISDOC{today} by $Texi2HTML::THISDOC{program} -->
 <!--
 $Texi2HTML::THISDOC{program_authors}
 -->
-<head>
-<title>$longtitle</title>
-
-$description
-<meta name="keywords" content="$longtitle">
-<meta name="Generator" content="$Texi2HTML::THISDOC{program}">
 $encoding
-$CSS_LINES
-$TEMPLATE_HEADER
+$TEMPLATE_HEADER2
+EOT
+}
+
+$print_page_foot = \&FFmpeg_print_page_foot;
+sub FFmpeg_print_page_foot($$)
+{
+    my $fh = shift;
+    print $fh <<EOT;
+$TEMPLATE_FOOTER
 EOT
 }
 

doc/t2h.pm

@@ -0,0 +1,339 @@
+# makeinfo HTML output init file
+#
+# Copyright (c) 2011, 2012 Free Software Foundation, Inc.
+# Copyright (c) 2014 Andreas Cadhalpun
+# Copyright (c) 2014 Tiancheng "Timothy" Gu
+#
+# This file is part of FFmpeg.
+#
+# FFmpeg is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# FFmpeg is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public
+# License along with FFmpeg; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+# no navigation elements
+set_from_init_file('HEADERS', 0);
+
+sub ffmpeg_heading_command($$$$$)
+{
+    my $self = shift;
+    my $cmdname = shift;
+    my $command = shift;
+    my $args = shift;
+    my $content = shift;
+
+    my $result = '';
+
+    # not clear that it may really happen
+    if ($self->in_string) {
+        $result .= $self->command_string($command) ."\n" if ($cmdname ne 'node');
+        $result .= $content if (defined($content));
+        return $result;
+    }
+
+    my $element_id = $self->command_id($command);
+    $result .= "<a name=\"$element_id\"></a>\n"
+        if (defined($element_id) and $element_id ne '');
+
+    print STDERR "Process $command "
+        .Texinfo::Structuring::_print_root_command_texi($command)."\n"
+            if ($self->get_conf('DEBUG'));
+    my $element;
+    if ($Texinfo::Common::root_commands{$command->{'cmdname'}}
+        and $command->{'parent'}
+        and $command->{'parent'}->{'type'}
+        and $command->{'parent'}->{'type'} eq 'element') {
+        $element = $command->{'parent'};
+    }
+    if ($element) {
+        $result .= &{$self->{'format_element_header'}}($self, $cmdname,
+                                                       $command, $element);
+    }
+
+    my $heading_level;
+    # node is used as heading if there is nothing else.
+    if ($cmdname eq 'node') {
+        if (!$element or (!$element->{'extra'}->{'section'}
+            and $element->{'extra'}->{'node'}
+            and $element->{'extra'}->{'node'} eq $command
+             # bogus node may not have been normalized
+            and defined($command->{'extra'}->{'normalized'}))) {
+            if ($command->{'extra'}->{'normalized'} eq 'Top') {
+                $heading_level = 0;
+            } else {
+                $heading_level = 3;
+            }
+        }
+    } else {
+        $heading_level = $command->{'level'};
+    }
+
+    my $heading = $self->command_text($command);
+    # $heading not defined may happen if the command is a @node, for example
+    # if there is an error in the node.
+    if (defined($heading) and $heading ne '' and defined($heading_level)) {
+
+        if ($Texinfo::Common::root_commands{$cmdname}
+            and $Texinfo::Common::sectioning_commands{$cmdname}) {
+            my $content_href = $self->command_contents_href($command, 'contents',
+                                                            $self->{'current_filename'});
+            if ($content_href) {
+                my $this_href = $content_href =~ s/^\#toc-/\#/r;
+                $heading .= '<span class="pull-right">'.
+                              '<a class="anchor hidden-xs" '.
+                                 "href=\"$this_href\" aria-hidden=\"true\">".
+            ($ENV{"FA_ICONS"} ? '<i class="fa fa-link"></i>'
+                              : '#').
+                              '</a> '.
+                              '<a class="anchor hidden-xs"'.
+                                 "href=\"$content_href\" aria-hidden=\"true\">".
+            ($ENV{"FA_ICONS"} ? '<i class="fa fa-navicon"></i>'
+                              : 'TOC').
+                              '</a>'.
+                            '</span>';
+            }
+        }
+
+        if ($self->in_preformatted()) {
+            $result .= $heading."\n";
+        } else {
+            # if the level was changed, set the command name right
+            if ($cmdname ne 'node'
+                and $heading_level ne $Texinfo::Common::command_structuring_level{$cmdname}) {
+                $cmdname
+                    = $Texinfo::Common::level_to_structuring_command{$cmdname}->[$heading_level];
+            }
+            $result .= &{$self->{'format_heading_text'}}(
+                        $self, $cmdname, $heading,
+                        $heading_level +
+                        $self->get_conf('CHAPTER_HEADER_LEVEL') - 1, $command);
+        }
+    }
+    $result .= $content if (defined($content));
+    return $result;
+}
+
+foreach my $command (keys(%Texinfo::Common::sectioning_commands), 'node') {
+    texinfo_register_command_formatting($command, \&ffmpeg_heading_command);
+}
+
+# print the TOC where @contents is used
+set_from_init_file('INLINE_CONTENTS', 1);
+
+# make chapters <h2>
+set_from_init_file('CHAPTER_HEADER_LEVEL', 2);
+
+# Do not add <hr>
+set_from_init_file('DEFAULT_RULE', '');
+set_from_init_file('BIG_RULE', '');
+
+# Customized file beginning
+sub ffmpeg_begin_file($$$)
+{
+    my $self = shift;
+    my $filename = shift;
+    my $element = shift;
+
+    my $command;
+    if ($element and $self->get_conf('SPLIT')) {
+        $command = $self->element_command($element);
+    }
+
+    my ($title, $description, $encoding, $date, $css_lines,
+        $doctype, $bodytext, $copying_comment, $after_body_open,
+        $extra_head, $program_and_version, $program_homepage,
+        $program, $generator) = $self->_file_header_informations($command);
+
+    my $links = $self->_get_links ($filename, $element);
+
+    my $head1 = $ENV{"FFMPEG_HEADER1"} || <<EOT;
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!-- Created by $program_and_version, $program_homepage -->
+  <head>
+    <meta charset="utf-8">
+    <title>
+EOT
+    my $head_title = <<EOT;
+      $title
+EOT
+
+    my $head2 = $ENV{"FFMPEG_HEADER2"} || <<EOT;
+    </title>
+    <meta name="viewport" content="width=device-width,initial-scale=1.0">
+    <link rel="stylesheet" type="text/css" href="bootstrap.min.css">
+    <link rel="stylesheet" type="text/css" href="style.min.css">
+  </head>
+  <body>
+    <div style="width: 95%; margin: auto">
+      <h1>
+EOT
+
+    my $head3 = $ENV{"FFMPEG_HEADER3"} || <<EOT;
+      </h1>
+EOT
+
+    return $head1 . $head_title . $head2 . $head_title . $head3;
+}
+texinfo_register_formatting_function('begin_file', \&ffmpeg_begin_file);
+
+sub ffmpeg_program_string($)
+{
+  my $self = shift;
+  if (defined($self->get_conf('PROGRAM'))
+      and $self->get_conf('PROGRAM') ne ''
+      and defined($self->get_conf('PACKAGE_URL'))) {
+    return $self->convert_tree(
+      $self->gdt('This document was generated using @uref{{program_homepage}, @emph{{program}}}.',
+         { 'program_homepage' => $self->get_conf('PACKAGE_URL'),
+           'program' => $self->get_conf('PROGRAM') }));
+  } else {
+    return $self->convert_tree(
+      $self->gdt('This document was generated automatically.'));
+  }
+}
+texinfo_register_formatting_function('program_string', \&ffmpeg_program_string);
+
+# Customized file ending
+sub ffmpeg_end_file($)
+{
+    my $self = shift;
+    my $program_string = &{$self->{'format_program_string'}}($self);
+    my $program_text = <<EOT;
+      <p style="font-size: small;">
+        $program_string
+      </p>
+EOT
+    my $footer = $ENV{FFMPEG_FOOTER} || <<EOT;
+    </div>
+  </body>
+</html>
+EOT
+    return $program_text . $footer;
+}
+texinfo_register_formatting_function('end_file', \&ffmpeg_end_file);
+
+# Dummy title command
+# Ignore title. Title is handled through ffmpeg_begin_file().
+set_from_init_file('USE_TITLEPAGE_FOR_TITLE', 1);
+sub ffmpeg_title($$$$)
+{
+    return '';
+}
+
+texinfo_register_command_formatting('titlefont',
+                                    \&ffmpeg_title);
+
+# Customized float command. Part of code borrowed from GNU Texinfo.
+sub ffmpeg_float($$$$$)
+{
+    my $self = shift;
+    my $cmdname = shift;
+    my $command = shift;
+    my $args = shift;
+    my $content = shift;
+
+    my ($caption, $prepended) = Texinfo::Common::float_name_caption($self,
+                                                                $command);
+    my $caption_text = '';
+    my $prepended_text;
+    my $prepended_save = '';
+
+    if ($self->in_string()) {
+        if ($prepended) {
+            $prepended_text = $self->convert_tree_new_formatting_context(
+                $prepended, 'float prepended');
+        } else {
+            $prepended_text = '';
+        }
+        if ($caption) {
+            $caption_text = $self->convert_tree_new_formatting_context(
+                {'contents' => $caption->{'args'}->[0]->{'contents'}},
+                'float caption');
+        }
+        return $prepended.$content.$caption_text;
+    }
+
+    my $id = $self->command_id($command);
+    my $label;
+    if (defined($id) and $id ne '') {
+        $label = "<a name=\"$id\"></a>";
+    } else {
+        $label = '';
+    }
+
+    if ($prepended) {
+        if ($caption) {
+            # prepend the prepended tree to the first paragraph
+            my @caption_original_contents = @{$caption->{'args'}->[0]->{'contents'}};
+            my @caption_contents;
+            my $new_paragraph;
+            while (@caption_original_contents) {
+                my $content = shift @caption_original_contents;
+                if ($content->{'type'} and $content->{'type'} eq 'paragraph') {
+                    %{$new_paragraph} = %{$content};
+                    $new_paragraph->{'contents'} = [@{$content->{'contents'}}];
+                    unshift (@{$new_paragraph->{'contents'}}, {'cmdname' => 'strong',
+                             'args' => [{'type' => 'brace_command_arg',
+                                                    'contents' => [$prepended]}]});
+                    push @caption_contents, $new_paragraph;
+                    last;
+                } else {
+                    push @caption_contents, $content;
+                }
+            }
+            push @caption_contents, @caption_original_contents;
+            if ($new_paragraph) {
+                $caption_text = $self->convert_tree_new_formatting_context(
+                 {'contents' => \@caption_contents}, 'float caption');
+                $prepended_text = '';
+            }
+        }
+        if ($caption_text eq '') {
+            $prepended_text = $self->convert_tree_new_formatting_context(
+                $prepended, 'float prepended');
+            if ($prepended_text ne '') {
+                $prepended_save = $prepended_text;
+                $prepended_text = '<p><strong>'.$prepended_text.'</strong></p>';
+            }
+        }
+    } else {
+        $prepended_text = '';
+    }
+
+    if ($caption and $caption_text eq '') {
+        $caption_text = $self->convert_tree_new_formatting_context(
+            $caption->{'args'}->[0], 'float caption');
+    }
+    if ($prepended_text.$caption_text ne '') {
+        $prepended_text = $self->_attribute_class('div','float-caption'). '>'
+                . $prepended_text;
+        $caption_text .= '</div>';
+    }
+    my $html_class = '';
+    if ($prepended_save =~ /NOTE/) {
+        $html_class = 'info';
+        $prepended_text = '';
+        $caption_text   = '';
+    } elsif ($prepended_save =~ /IMPORTANT/) {
+        $html_class = 'warning';
+        $prepended_text = '';
+        $caption_text   = '';
+    }
+    return $self->_attribute_class('div', $html_class). '>' . "\n" .
+        $prepended_text . $caption_text . $content . '</div>';
+}
+
+texinfo_register_command_formatting('float',
+                                    \&ffmpeg_float);
+
+1;

doc/texi2pod.pl

@@ -282,6 +282,14 @@ INF: while(<$inf>) {
         $_ = "\n=over 4\n";
     };
 
+    /^\@(multitable)\s+{.*/ and do {
+        push @endwstack, $endw;
+        push @icstack, $ic;
+        $endw = $1;
+        $ic = "";
+        $_ = "\n=over 4\n";
+    };
+
     /^\@((?:small)?example|display)/ and do {
         push @endwstack, $endw;
         $endw = $1;
@@ -298,10 +306,10 @@ INF: while(<$inf>) {
 
     /^\@tab\s+(.*\S)\s*$/ and $endw eq "multitable" and do {
         my $columns = $1;
-        $columns =~ s/\@tab/ : /;
+        $columns =~ s/\@tab//;
 
-        $_ = " : ". $columns;
-        $chapter =~ s/\n+\s+$//;
+        $_ = $columns;
+        $chapter =~ s/$//;
     };
 
     /^\@itemx?\s*(.+)?$/ and do {
@@ -324,13 +332,14 @@ $inf = pop @instack;
 
 die "No filename or title\n" unless defined $fn && defined $tl;
 
+# always use utf8
+print "=encoding utf8\n\n";
+
 $chapters{NAME} = "$fn \- $tl\n";
 $chapters{FOOTNOTES} .= "=back\n" if exists $chapters{FOOTNOTES};
 
 unshift @chapters_sequence, "NAME";
 for $chapter (@chapters_sequence) {
-    # always use utf8
-    print "=encoding utf8\n";
     if (exists $chapters{$chapter}) {
         $head = uc($chapter);
         print "=head1 $head\n\n";

doc/utils.texi

@@ -782,6 +782,9 @@ large numbers (usually 2^53 and larger).
 Round the value of expression @var{expr} upwards to the nearest
 integer. For example, "ceil(1.5)" is "2.0".
 
+@item clip(x, min, max)
+Return the value of @var{x} clipped between @var{min} and @var{max}.
+
 @item cos(x)
 Compute cosine of @var{x}.
 
@@ -1031,7 +1034,7 @@ indication of the corresponding powers of 10 and of 2.
 10^24 / 2^70
 @end table
 
-@c man end
+@c man end EXPRESSION EVALUATION
 
 @chapter OpenCL Options
 @c man begin OPENCL OPTIONS
@@ -1056,7 +1059,7 @@ which can be obtained with @code{ffmpeg -opencl_bench} or @code{av_opencl_get_de
 @item device_idx
 Select the index of the device used to run OpenCL code.
 
-The specifed index must be one of the indexes in the device list which
+The specified index must be one of the indexes in the device list which
 can be obtained with @code{ffmpeg -opencl_bench} or @code{av_opencl_get_device_list()}.
 
 @end table

doc/writing_filters.txt

@@ -0,0 +1,423 @@
+This document is a tutorial/initiation for writing simple filters in
+libavfilter.
+
+Foreword: just like everything else in FFmpeg, libavfilter is monolithic, which
+means that it is highly recommended that you submit your filters to the FFmpeg
+development mailing-list and make sure it is applied. Otherwise, your filter is
+likely to have a very short lifetime due to more a less regular internal API
+changes, and a limited distribution, review, and testing.
+
+Bootstrap
+=========
+
+Let's say you want to write a new simple video filter called "foobar" which
+takes one frame in input, changes the pixels in whatever fashion you fancy, and
+outputs the modified frame. The most simple way of doing this is to take a
+similar filter.  We'll pick edgedetect, but any other should do. You can look
+for others using the `./ffmpeg -v 0 -filters|grep ' V->V '` command.
+
+ - sed 's/edgedetect/foobar/g;s/EdgeDetect/Foobar/g' libavfilter/vf_edgedetect.c > libavfilter/vf_foobar.c
+ - edit libavfilter/Makefile, and add an entry for "foobar" following the
+   pattern of the other filters.
+ - edit libavfilter/allfilters.c, and add an entry for "foobar" following the
+   pattern of the other filters.
+ - ./configure ...
+ - make -j<whatever> ffmpeg
+ - ./ffmpeg -i http://samples.ffmpeg.org/image-samples/lena.pnm -vf foobar foobar.png
+   Note here: you can obviously use a random local image instead of a remote URL.
+
+If everything went right, you should get a foobar.png with Lena edge-detected.
+
+That's it, your new playground is ready.
+
+Some little details about what's going on:
+libavfilter/allfilters.c:avfilter_register_all() is called at runtime to create
+a list of the available filters, but it's important to know that this file is
+also parsed by the configure script, which in turn will define variables for
+the build system and the C:
+
+    --- after running configure ---
+
+    $ grep FOOBAR config.mak
+    CONFIG_FOOBAR_FILTER=yes
+    $ grep FOOBAR config.h
+    #define CONFIG_FOOBAR_FILTER 1
+
+CONFIG_FOOBAR_FILTER=yes from the config.mak is later used to enable the filter in
+libavfilter/Makefile and CONFIG_FOOBAR_FILTER=1 from the config.h will be used
+for registering the filter in libavfilter/allfilters.c.
+
+Filter code layout
+==================
+
+You now need some theory about the general code layout of a filter. Open your
+libavfilter/vf_foobar.c. This section will detail the important parts of the
+code you need to understand before messing with it.
+
+Copyright
+---------
+
+First chunk is the copyright. Most filters are LGPL, and we are assuming
+vf_foobar is as well. We are also assuming vf_foobar is not an edge detector
+filter, so you can update the boilerplate with your credits.
+
+Doxy
+----
+
+Next chunk is the Doxygen about the file. See http://ffmpeg.org/doxygen/trunk/.
+Detail here what the filter is, does, and add some references if you feel like
+it.
+
+Context
+-------
+
+Skip the headers and scroll down to the definition of FoobarContext. This is
+your local state context. It is already filled with 0 when you get it so do not
+worry about uninitialized read into this context. This is where you put every
+"global" information you need, typically the variable storing the user options.
+You'll notice the first field "const AVClass *class"; it's the only field you
+need to keep assuming you have a context. There are some magic you don't care
+about around this field, just let it be (in first position) for now.
+
+Options
+-------
+
+Then comes the options array. This is what will define the user accessible
+options. For example, -vf foobar=mode=colormix:high=0.4:low=0.1. Most options
+have the following pattern:
+  name, description, offset, type, default value, minimum value, maximum value, flags
+
+ - name is the option name, keep it simple, lowercase
+ - description are short, in lowercase, without period, and describe what they
+   do, for example "set the foo of the bar"
+ - offset is the offset of the field in your local context, see the OFFSET()
+   macro; the option parser will use that information to fill the fields
+   according to the user input
+ - type is any of AV_OPT_TYPE_* defined in libavutil/opt.h
+ - default value is an union where you pick the appropriate type; "{.dbl=0.3}",
+   "{.i64=0x234}", "{.str=NULL}", ...
+ - min and max values define the range of available values, inclusive
+ - flags are AVOption generic flags. See AV_OPT_FLAG_* definitions
+
+In doubt, just look at the other AVOption definitions all around the codebase,
+there are tons of examples.
+
+Class
+-----
+
+AVFILTER_DEFINE_CLASS(foobar) will define a unique foobar_class with some kind
+of signature referencing the options, etc. which will be referenced in the
+definition of the AVFilter.
+
+Filter definition
+-----------------
+
+At the end of the file, you will find foobar_inputs, foobar_outputs and
+the AVFilter ff_vf_foobar. Don't forget to update the AVFilter.description with
+a description of what the filter does, starting with a capitalized letter and
+ending with a period. You'd better drop the AVFilter.flags entry for now, and
+re-add them later depending on the capabilities of your filter.
+
+Callbacks
+---------
+
+Let's now study the common callbacks. Before going into details, note that all
+these callbacks are explained in details in libavfilter/avfilter.h, so in
+doubt, refer to the doxy in that file.
+
+init()
+~~~~~~
+
+First one to be called is init(). It's flagged as cold because not called
+often. Look for "cold" on
+http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html for more
+information.
+
+As the name suggests, init() is where you eventually initialize and allocate
+your buffers, pre-compute your data, etc. Note that at this point, your local
+context already has the user options initialized, but you still haven't any
+clue about the kind of data input you will get, so this function is often
+mainly used to sanitize the user options.
+
+Some init()s will also define the number of inputs or outputs dynamically
+according to the user options. A good example of this is the split filter, but
+we won't cover this here since vf_foobar is just a simple 1:1 filter.
+
+uninit()
+~~~~~~~~
+
+Similarly, there is the uninit() callback, doing what the name suggest. Free
+everything you allocated here.
+
+query_formats()
+~~~~~~~~~~~~~~~
+
+This is following the init() and is used for the format negotiation, basically
+where you say what pixel format(s) (gray, rgb 32, yuv 4:2:0, ...) you accept
+for your inputs, and what you can output. All pixel formats are defined in
+libavutil/pixfmt.h. If you don't change the pixel format between the input and
+the output, you just have to define a pixel formats array and call
+ff_set_common_formats(). For more complex negotiation, you can refer to other
+filters such as vf_scale.
+
+config_props()
+~~~~~~~~~~~~~~
+
+This callback is not necessary, but you will probably have one or more
+config_props() anyway. It's not a callback for the filter itself but for its
+inputs or outputs (they're called "pads" - AVFilterPad - in libavfilter's
+lexicon).
+
+Inside the input config_props(), you are at a point where you know which pixel
+format has been picked after query_formats(), and more information such as the
+video width and height (inlink->{w,h}). So if you need to update your internal
+context state depending on your input you can do it here. In edgedetect you can
+see that this callback is used to allocate buffers depending on these
+information. They will be destroyed in uninit().
+
+Inside the output config_props(), you can define what you want to change in the
+output. Typically, if your filter is going to double the size of the video, you
+will update outlink->w and outlink->h.
+
+filter_frame()
+~~~~~~~~~~~~~~
+
+This is the callback you are waiting from the beginning: it is where you
+process the received frames. Along with the frame, you get the input link from
+where the frame comes from.
+
+    static int filter_frame(AVFilterLink *inlink, AVFrame *in) { ... }
+
+You can get the filter context through that input link:
+
+    AVFilterContext *ctx = inlink->dst;
+
+Then access your internal state context:
+
+    FoobarContext *foobar = ctx->priv;
+
+And also the output link where you will send your frame when you are done:
+
+    AVFilterLink *outlink = ctx->outputs[0];
+
+Here, we are picking the first output. You can have several, but in our case we
+only have one since we are in a 1:1 input-output situation.
+
+If you want to define a simple pass-through filter, you can just do:
+
+    return ff_filter_frame(outlink, in);
+
+But of course, you probably want to change the data of that frame.
+
+This can be done by accessing frame->data[] and frame->linesize[].  Important
+note here: the width does NOT match the linesize. The linesize is always
+greater or equal to the width. The padding created should not be changed or
+even read. Typically, keep in mind that a previous filter in your chain might
+have altered the frame dimension but not the linesize. Imagine a crop filter
+that halves the video size: the linesizes won't be changed, just the width.
+
+    <-------------- linesize ------------------------>
+    +-------------------------------+----------------+ ^
+    |                               |                | |
+    |                               |                | |
+    |           picture             |    padding     | | height
+    |                               |                | |
+    |                               |                | |
+    +-------------------------------+----------------+ v
+    <----------- width ------------->
+
+Before modifying the "in" frame, you have to make sure it is writable, or get a
+new one. Multiple scenarios are possible here depending on the kind of
+processing you are doing.
+
+Let's say you want to change one pixel depending on multiple pixels (typically
+the surrounding ones) of the input. In that case, you can't do an in-place
+processing of the input so you will need to allocate a new frame, with the same
+properties as the input one, and send that new frame to the next filter:
+
+    AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+    if (!out) {
+        av_frame_free(&in);
+        return AVERROR(ENOMEM);
+    }
+    av_frame_copy_props(out, in);
+
+    // out->data[...] = foobar(in->data[...])
+
+    av_frame_free(&in);
+    return ff_filter_frame(outlink, out);
+
+In-place processing
+~~~~~~~~~~~~~~~~~~~
+
+If you can just alter the input frame, you probably just want to do that
+instead:
+
+    av_frame_make_writable(in);
+    // in->data[...] = foobar(in->data[...])
+    return ff_filter_frame(outlink, in);
+
+You may wonder why a frame might not be writable. The answer is that for
+example a previous filter might still own the frame data: imagine a filter
+prior to yours in the filtergraph that needs to cache the frame. You must not
+alter that frame, otherwise it will make that previous filter buggy. This is
+where av_frame_make_writable() helps (it won't have any effect if the frame
+already is writable).
+
+The problem with using av_frame_make_writable() is that in the worst case it
+will copy the whole input frame before you change it all over again with your
+filter: if the frame is not writable, av_frame_make_writable() will allocate
+new buffers, and copy the input frame data. You don't want that, and you can
+avoid it by just allocating a new buffer if necessary, and process from in to
+out in your filter, saving the memcpy. Generally, this is done following this
+scheme:
+
+    int direct = 0;
+    AVFrame *out;
+
+    if (av_frame_is_writable(in)) {
+        direct = 1;
+        out = in;
+    } else {
+        out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+        if (!out) {
+            av_frame_free(&in);
+            return AVERROR(ENOMEM);
+        }
+        av_frame_copy_props(out, in);
+    }
+
+    // out->data[...] = foobar(in->data[...])
+
+    if (!direct)
+        av_frame_free(&in);
+    return ff_filter_frame(outlink, out);
+
+Of course, this will only work if you can do in-place processing. To test if
+your filter handles well the permissions, you can use the perms filter. For
+example with:
+
+    -vf perms=random,foobar
+
+Make sure no automatic pixel conversion is inserted between perms and foobar,
+otherwise the frames permissions might change again and the test will be
+meaningless: add av_log(0,0,"direct=%d\n",direct) in your code to check that.
+You can avoid the issue with something like:
+
+    -vf format=rgb24,perms=random,foobar
+
+...assuming your filter accepts rgb24 of course. This will make sure the
+necessary conversion is inserted before the perms filter.
+
+Timeline
+~~~~~~~~
+
+Adding timeline support
+(http://ffmpeg.org/ffmpeg-filters.html#Timeline-editing) is often an easy
+feature to add. In the most simple case, you just have to add
+AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC to the AVFilter.flags. You can typically
+do this when your filter does not need to save the previous context frames, or
+basically if your filter just alter whatever goes in and doesn't need
+previous/future information. See for instance commit 86cb986ce that adds
+timeline support to the fieldorder filter.
+
+In some cases, you might need to reset your context somehow. This is handled by
+the AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL flag which is used if the filter
+must not process the frames but still wants to keep track of the frames going
+through (to keep them in cache for when it's enabled again). See for example
+commit 69d72140a that adds timeline support to the phase filter.
+
+Threading
+~~~~~~~~~
+
+libavfilter does not yet support frame threading, but you can add slice
+threading to your filters.
+
+Let's say the foobar filter has the following frame processing function:
+
+    dst = out->data[0];
+    src = in ->data[0];
+
+    for (y = 0; y < inlink->h; y++) {
+        for (x = 0; x < inlink->w; x++)
+            dst[x] = foobar(src[x]);
+        dst += out->linesize[0];
+        src += in ->linesize[0];
+    }
+
+The first thing is to make this function work into slices. The new code will
+look like this:
+
+    for (y = slice_start; y < slice_end; y++) {
+        for (x = 0; x < inlink->w; x++)
+            dst[x] = foobar(src[x]);
+        dst += out->linesize[0];
+        src += in ->linesize[0];
+    }
+
+The source and destination pointers, and slice_start/slice_end will be defined
+according to the number of jobs. Generally, it looks like this:
+
+    const int slice_start = (in->height *  jobnr   ) / nb_jobs;
+    const int slice_end   = (in->height * (jobnr+1)) / nb_jobs;
+    uint8_t       *dst = out->data[0] + slice_start * out->linesize[0];
+    const uint8_t *src =  in->data[0] + slice_start *  in->linesize[0];
+
+This new code will be isolated in a new filter_slice():
+
+    static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { ... }
+
+Note that we need our input and output frame to define slice_{start,end} and
+dst/src, which are not available in that callback. They will be transmitted
+through the opaque void *arg. You have to define a structure which contains
+everything you need:
+
+    typedef struct ThreadData {
+        AVFrame *in, *out;
+    } ThreadData;
+
+If you need some more information from your local context, put them here.
+
+In you filter_slice function, you access it like that:
+
+    const ThreadData *td = arg;
+
+Then in your filter_frame() callback, you need to call the threading
+distributor with something like this:
+
+    ThreadData td;
+
+    // ...
+
+    td.in  = in;
+    td.out = out;
+    ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(outlink->h, ctx->graph->nb_threads));
+
+    // ...
+
+    return ff_filter_frame(outlink, out);
+
+Last step is to add AVFILTER_FLAG_SLICE_THREADS flag to AVFilter.flags.
+
+For more example of slice threading additions, you can try to run git log -p
+--grep 'slice threading' libavfilter/
+
+Finalization
+~~~~~~~~~~~~
+
+When your awesome filter is finished, you have a few more steps before you're
+done:
+
+ - write its documentation in doc/filters.texi, and test the output with make
+   doc/ffmpeg-filters.html.
+ - add a FATE test, generally by adding an entry in
+   tests/fate/filter-video.mak, add running make fate-filter-foobar GEN=1 to
+   generate the data.
+ - add an entry in the Changelog
+ - edit libavfilter/version.h and increase LIBAVFILTER_VERSION_MINOR by one
+   (and reset LIBAVFILTER_VERSION_MICRO to 100)
+ - git add ... && git commit -m "avfilter: add foobar filter." && git format-patch -1
+
+When all of this is done, you can submit your patch to the ffmpeg-devel
+mailing-list for review.  If you need any help, feel free to come on our IRC
+channel, #ffmpeg-devel on irc.freenode.net.