T

Rostislav Pehlivanov a1c487e921 aacenc_tns: implement temporal noise shaping

This commit implements temporal noise shaping support in the
encoder, along with an -aac_tns option to toggle it on or off
(off by default for now). TNS will increase audio quality
and reduce quantization noise by applying a multitap FIR filter
across allowed coefficients and transmit side information to the
decoder so it could create an inverse filter.

Users are encouraged to test the new functionality by enabling
-aac_tns 1 during encoding.

No major bugs are observable at this time so after a while if no
new problems appear and if the current implementation is deemed
of high enough quality and stability it will be enabled by default,
possibly at the same time the encoder has its experimental flag
removed and becomes the standard aac encoder in ffmpeg.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

2015-08-21 19:27:38 +01:00

compat

use a wrapper script to call MS link.exe to avoid mixing with /usr/bin/link.exe

2015-07-24 20:02:32 +02:00

doc

Add support for Audible AA files

2015-08-21 04:24:58 +00:00

libavcodec

aacenc_tns: implement temporal noise shaping

2015-08-21 19:27:38 +01:00

libavdevice

Replace av_dlog with ff_dlog.

2015-08-18 10:24:01 -04:00

libavfilter

avfilter/vf_vectorscope: Fix ;;

2015-08-21 13:16:34 +02:00

libavformat

avformat/hls: correct comment for ensure_playlist()

2015-08-21 14:21:10 +02:00

libavresample

x86inc: Drop SECTION_TEXT macro

2015-08-04 20:13:09 +02:00

libavutil

*/version.h: Add note/recommandition about bumping major

2015-08-19 21:37:32 +02:00

libpostproc

postproc: Deprecate QP_STORE_T, it lacks a PP/AV/FF prefix

2015-08-10 02:33:25 +02:00

libswresample

x86: move XOP emulation code back to x86inc

2015-08-03 17:11:13 -03:00

libswscale

swscale/alphablend: Fix pointer type warnings

2015-08-21 12:14:08 +02:00

presets

presets: remove moldering iPod presets

2014-06-17 16:15:04 -08:00

tests

api-seek-test: first version

2015-08-20 21:40:11 +02:00

tools

graph2dot: use avfilter_pad_get_name accessor function

2015-08-20 22:38:01 +02:00

.gitattributes

Treat all '*.pnm' files as non-text file

2014-11-28 17:52:43 -05:00

.gitignore

doc/examples: rename avio_list_dir -> avio_dir_cmd

2015-08-16 02:16:47 +02:00

arch.mak

use mmi instead of loongson3 as simd-optimization flag

2015-07-07 03:46:57 +02:00

Changelog

avfilter: add video vectorscope filter

2015-08-20 22:57:47 +00:00

cmdutils_common_opts.h

opts: add list device sources/sinks options

2014-10-25 20:20:31 +02:00

cmdutils_opencl.c

OpenCL: Avoid potential buffer overflow in cmdutils_opencl.c

2015-04-28 12:18:23 +02:00

cmdutils.c

ffmpeg: replace deprecated av_log_ask_for_sample with av_log

2015-08-12 00:14:13 +02:00

cmdutils.h

cmdutils: remove sws_opts usage, simplify code

2015-08-08 16:51:25 +02:00

common.mak

Merge commit '3ae0e721c7b6e0483801b9039b3d140e3b68b7f5'

2015-07-22 16:30:37 +02:00

configure

configure: Check for CoreServices/CoreServices.h and make vda+viedotoolbox depend on it

2015-08-19 22:49:20 +02:00

COPYING.GPLv2

Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1.

2009-06-05 09:51:31 +00:00

COPYING.GPLv3

Add configure option to upgrade (L)GPL to version 3.

2009-06-05 11:04:03 +00:00

COPYING.LGPLv2.1

cosmetics: Delete empty lines at end of file.

2012-02-09 12:26:45 +01:00

COPYING.LGPLv3

Add configure option to upgrade (L)GPL to version 3.

2009-06-05 11:04:03 +00:00

CREDITS

CREDITS: redirect to Git log, remove current outdated content

2013-01-31 18:02:52 +01:00

ffmpeg_dxva2.c

ffmpeg_dxva2: call GetDesktopWindow() in place of GetShellWindow()

2015-06-03 16:25:08 +02:00

ffmpeg_filter.c

lavfi: fix compilation with FF_API_OLD_FILTER_OPTS=0.

2015-08-18 22:22:49 -04:00

ffmpeg_opt.c

ffmpeg_opt: Prefer audio streams with packets

2015-08-14 10:43:16 +02:00

ffmpeg_vdpau.c

ffmpeg_vdpau: Ignore decoder's max supported level

2015-08-16 15:02:33 -07:00

ffmpeg_videotoolbox.c

avcodec: add new Videotoolbox hwaccel.

2015-08-03 10:12:10 +02:00

ffmpeg.c

ffmpeg: use av_err2str()

2015-08-21 12:11:09 +02:00

ffmpeg.h

ffmpeg: switch swscale option handling to AVDictionary similar to what the other subsystems use

2015-08-08 14:44:15 +02:00

ffplay.c

ffplay: increase MIN_FRAMES to 25

2015-08-09 23:58:03 +02:00

ffprobe.c

ffprobe: check av_asprintf() for failure

2015-06-13 01:45:27 +02:00

ffserver_config.c

ffserver: Use singlejpeg muxer for jpeg

2015-06-08 03:36:22 +02:00

ffserver_config.h

ffserver: Use singlejpeg muxer for jpeg

2015-06-08 03:36:22 +02:00

ffserver.c

ffserver: cast PID to int64_t before printing

2015-08-21 15:47:54 +02:00

INSTALL.md

INSTALL: add markdown syntax

2014-05-28 22:38:38 +02:00

library.mak

build: add LDLIBFLAGS

2015-07-08 14:35:02 +02:00

LICENSE.md

avfilter/vf_removegrain: add x86 and x86_64 SSE2 functions

2015-07-14 23:50:50 +00:00

MAINTAINERS

Add support for Audible AA files

2015-08-21 04:24:58 +00:00

Makefile

avcodec: add new Videotoolbox hwaccel.

2015-08-03 10:12:10 +02:00

README.md

README: add ffserver

2015-02-12 11:59:22 +01:00

RELEASE

RELEASE: update to 2.7.git

2015-07-19 17:52:31 -03:00

version.sh

version.sh: Print versions based on the last git tag for release branches

2014-07-28 15:44:59 +02:00

README.md

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 is a command line toolbox to manipulate, convert and stream multimedia content.
ffplay is a minimalistic multimedia player.
ffprobe is a simple analysis tool to inspect multimedia content.
ffserver 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 and in the wiki.

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.