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4272 Commits

Author SHA1 Message Date
Michael Niedermayer e8363735fb avutil/mathematics: Document av_rescale_rnd() behavior on non int64 results 
Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e154353fdb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-10-21 15:25:58 +02:00
Michael Niedermayer fcd8bfa3b9 avutil/common: Add FF_PTR_ADD() 
Suggested-by: Andreas Rheinhardt
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 522a5259e9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-10-09 22:02:20 +02:00
Michael Niedermayer 88974483a4 avutil/timecode: Avoid fps overflow 
Fixes: Integer overflow and division by 0
Fixes: poc-202102-div.mov

Found-by: 1vanChen of NSFOCUS Security Team
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c94875471e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-10-09 22:02:20 +02:00
Michael Niedermayer 4fd805a2ae libavutil/eval: Remove CONFIG_TRAPV special handling 
Fixes: division by zero
Fixes: 29555/clusterfuzz-testcase-minimized-ffmpeg_dem_VIVO_fuzzer-5149951447400448

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8574fcbfc7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-10-09 22:02:20 +02:00
Michael Niedermayer 090893695e avutil/timecode: Avoid undefined behavior with large framenum 
Fixes: signed integer overflow: 2147462079 + 2149596 cannot be represented in type 'int'
Fixes: 27565/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5091972813160448

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1b19057396)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-10-09 22:02:20 +02:00
Michael Niedermayer bdfd833cd7 avutil/fixed_dsp: Fix integer overflows in butterflies_fixed_c() 
Fixes: signed integer overflow: 0 - -2147483648 cannot be represented in type 'int'
Fixes: 23646/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5480991098667008

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4a02ae49c2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2021-10-09 22:02:19 +02:00
Michael Niedermayer bf3757f54b avutil/common: Fix integer overflow in av_ceil_log2_c() 
Fixes: left shift of 1913647649 by 1 places cannot be represented in type 'int'
Fixes: 23572/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5082619795734528

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e409262837)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-07-01 12:49:26 +02:00
Michael Niedermayer 7a159bec19 avutil/lfg: Correct index increment type to avoid undefined behavior 
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 18333/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_COMFORTNOISE_fuzzer-5668481831272448

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6014bcf1b7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-07-01 12:49:26 +02:00
Mark Harris 5fd65ebf28 avutil/mem: Fix invalid use of av_alloc_size 
The alloc_size attribute is valid only on functions that return a
pointer.  GCC 9 (not yet released) warns about invalid usage:

./libavutil/mem.h:342:1: warning: 'alloc_size' attribute ignored on a function returning int' [-Wattributes]
  342 | av_alloc_size(2, 3) int av_reallocp_array(void *ptr, size_t nmemb, size_t size);
      | ^~~~~~~~~~~~~

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4361293fcf)
 2019-07-23 01:18:28 -03:00
Michael Niedermayer 3905acef67 avutil/avstring: Fix bug and undefined behavior in av_strncasecmp() 
The function in case of n=0 would read more bytes than 0.
The end pointer could be beyond the allocated space, which
is undefined.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6f0e9a8634)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-05-09 11:21:57 +02:00
Michael Niedermayer 8ea2558ab7 avutil/mem: Optimize fill32() by unrolling and using 64bit 
Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 12b1338be3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-03-24 10:39:03 +01:00
Michael Niedermayer c2af767c3e avutil/integer: Fix integer overflow in av_mul_i() 
Found-by: fate
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3cc3cb663b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-11-18 02:35:03 +01:00
Michael Niedermayer b130cdb923 avutil/pixfmt: Document chroma plane size for odd resolutions 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit be0b77e6e8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-11-18 02:20:43 +01:00
Michael Niedermayer 75c0be5b93 avutil/common: Fix undefined behavior in av_clip_uintp2_c() 
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 8521/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5639024952737792

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit aa41d322be)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-07-08 19:45:47 +02:00
Michael Niedermayer fc9dcfb9f2 avutil/common: Fix integer overflow in av_clip_uint8_c() and av_clip_uint16_c() 
Fixes: 5567/clusterfuzz-testcase-minimized-5769966247739392
Fixes: runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ab6f571ef7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-07-08 19:30:10 +02:00
Michael Niedermayer 4d9f669a9f avutil/softfloat: Add FLOAT_MIN 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e34fe61bf4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-01-08 23:19:14 +01:00
Michael Niedermayer 25b7dc959a avutil/softfloat: Fix sign error in and improve documentation of av_int2sf() 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6019d721d4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-16 01:05:29 +02:00
Michael Niedermayer af71771a6c avutil/internal: Do not enable CHECKED with DEBUG 
This avoids potential undefined behavior in debug mode while still allowing
developers which want to check for potential additional overflows to do so
by manually enabling this.

Reviewed-by: wm4
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a44b3abb4c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-16 01:05:27 +02:00
Aaron Levinson 7793fc5b33 avutil/hwcontext_dxva2: Don't improperly free IDirect3DSurface9 objects 
Add dxva2_pool_release_dummy() and use it in call to
av_buffer_create() in dxva2_pool_alloc().

Prior to this change, av_buffer_create() was called with NULL for the
third argument, which indicates that av_buffer_default_free() should
be used to free the buffer's data.  Eventually, it gets to
buffer_pool_free() and calls buf->free() on a surface object (which is
av_buffer_default_free()).

This can result in a crash when the debug version of the C-runtime is
used on Windows.  While it doesn't appear to result in a crash when
the release version of the C-runtime is used on Windows, it likely
results in memory corruption, since av_free() is being called on
memory that was allocated using
IDirectXVideoAccelerationService::CreateSurface().

Signed-off-by: Aaron Levinson <alevinsn@aracnet.com>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Reviewed-by: Steven Liu <lingjiujianke@gmail.com>
Reviewed-by: Mark Thompson <sw@jkqxz.net>
(cherry picked from commit 0c1c514643)
 2017-05-16 22:03:21 +01:00
Michael Niedermayer 1bb1d2d4a1 avutil/softfloat: Fix overflow in av_div_sf() 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 277e397eb5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-14 12:20:15 +02:00
Michael Niedermayer cff78c4cc4 avutil/softfloat: Fix multiple runtime error: left shift of negative value -8 
Fixes: 1352/clusterfuzz-testcase-minimized-5757565017260032

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 35f3df0d76)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-14 12:20:15 +02:00
Michael Niedermayer bf780cbd99 Add CHECK/SUINT code 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4614bf2caf)
(cherry picked from commit e8d4eacc07)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-14 12:20:15 +02:00
Mark Thompson 016064625f hwcontext_vdpau: Fix missing subscripts 
Also remove the redundant casts which were hiding the error here.

Fixes Ubuntu bug 1688735, reported by andysem.

(cherry picked from commit 7081620aca)
 2017-05-09 14:45:54 +02:00
Michael Niedermayer ceeeccc862 avutil/random_seed: Reduce the time needed on systems with very low precission clock() 
This should fix issues on BSD
CLOCKS_PER_SEC is 128 on BSD while SUSv2 requires it to be a million

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c4152fc42e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-01-26 00:34:12 +01:00
Michael Niedermayer 7643e8584f avutil/random_seed: Improve get_generic_seed() with higher precission clock() 
Tested-by: Thomas Turner <thomastdt@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit da73d95bad)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-01-26 00:34:12 +01:00
Michael Niedermayer 64bb329afa avutil: Add av_image_check_size2() 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f542b152aa)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-12-11 00:21:53 +01:00
Andreas Cadhalpun ad82036626 softfloat: decrease MIN_EXP to cover full float range 
floats are not necessarily normalized, so a normalized softfloat needs
MIN_EXP lowered by 23 to cover that range.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit 2d6f46d801)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2016-11-25 22:22:15 +01:00
Andreas Cadhalpun c8f5154fc1 softfloat: handle -INT_MAX correctly 
This is similar to commit 9ac61e73d0.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit 0edd569466)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2016-11-17 23:18:35 +01:00
Michael Niedermayer 660229d647 Revert "Bump minor versions after 3.2 branchpoint to seperate release" 
this should only have been on master

This reverts commit 1609935b6c.
 2016-10-26 21:22:12 +02:00
Michael Niedermayer 1609935b6c Bump minor versions after 3.2 branchpoint to seperate release 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-10-26 20:52:42 +02:00
Michael Niedermayer 3f3025205f Bump minor versions for 3.2 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-10-26 20:52:42 +02:00
Michael Behrisch c5ac86256b lavu: remove comma at final enumeration items to fix pedantic warnings 2016-10-26 19:36:09 +02:00
Michael Niedermayer 051517648b avutil/x86/emms: Document the emms_c() vs alloc/free relation. 
Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-10-23 13:02:37 +02:00
Zhou Xiaoyong b9cd922660 avutil/mips: loongson add mmi utils header file 
1.mmiutils.h defined MMI_ load/store macros for loongson2e/2f/3a
2.mmiutils.h defined some mmi assembly macors

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-10-23 03:23:09 +02:00
Michael Niedermayer f5495c970c avutil/avassert: Add av_assertX_fpu() 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-10-22 13:50:09 +02:00
Andreas Cadhalpun c8a6eb58d7 doc: fix spelling errors 
Thanks to Mathieu Malaterre <malat@debian.org> for reporting the
Que/Queue typo. (https://bugs.debian.org/839542)

Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2016-10-21 23:58:47 +02:00
Thomas Turner 09d39177dc avutil: Improved selftest coverage for libavutil/fifo.c 
Tested functions: av_fifo_generic_peek(), av_fifo_grow()

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-10-14 23:14:33 +02:00
Michael Niedermayer d790e48830 avutil/audio_fifo: Use av_fifo_freep() and remove redundant if() 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-10-14 17:08:51 +02:00
Michael Niedermayer 1bda0ee530 avutil/hwcontext_vdpau: Fix warning: "GET_CALLBACK" redefined 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-10-10 02:41:24 +02:00
Hendrik Leppkes e8487d71be Merge commit 'fe498ef5144d3712b887f44a0c5e654add99ead7' 
* commit 'fe498ef5144d3712b887f44a0c5e654add99ead7':
  hwcontext_vaapi: Return all formats for constraints without config

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2016-10-07 13:19:53 +02:00
Hendrik Leppkes 3f9137c57d Merge commit '32c8359093d1ff4f45ed19518b449b3ac3769d27' 
* commit '32c8359093d1ff4f45ed19518b449b3ac3769d27':
  lavc: export the timestamps when decoding in AVFrame.pts

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2016-10-07 13:03:36 +02:00
Timothy Gu 54220ce731 pixfmt: Use enum assignment for aliases 
This way, Doxygen is happier as aliases are now grouped together, and
it never handled #define's in an enum well in the first place.

Y400A already exists as an enum assignment.
 2016-10-05 17:17:50 -07:00
Timothy Gu bdcd586c0d pixdesc: Order function prototypes semantically 2016-10-05 17:17:50 -07:00
Shivraj Patil c1cc13cd2a avutil/mips/generic_macros_msa: rename macro variable which causes segfault for mips r6 
Signed-off-by: Shivraj Patil <shivraj.patil@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-10-05 23:44:03 +02:00
Timo Rothenpieler a0d7ce1406 avutil/hwcontext_cuda: align allocated frames 2016-10-03 15:49:22 +02:00
Timo Rothenpieler 97e7f03d35 avutil/hwcontext_cuda: use proper synchronization flag 2016-09-29 22:58:34 +02:00
James Almer 13dd5edb88 avutil/hwcontext: use CONFIG_QSV instead of CONFIG_LIBMFX for qsv 
See "[FFmpeg-devel] [PATCH] hwcontext: add a QSV implementation"

Suggested-by: nablet developer <sdk@nablet.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2016-09-28 15:13:10 -03:00
James Almer eba0414768 Merge commit '59e7361cc791e5103be1712dc59a2055f118d0da' 
* commit '59e7361cc791e5103be1712dc59a2055f118d0da':
  hwcontext: add a QSV implementation

Conflicts:
    doc/APIchanges
    libavutil/version.h

Merged-by: James Almer <jamrial@gmail.com>
 2016-09-28 13:30:27 -03:00
James Almer 6e76c9c450 Merge commit 'a8164323374e86ce5f93759230868c98356833a2' 
* commit 'a8164323374e86ce5f93759230868c98356833a2':
  pixdesc: Add new SMPTE 431, 432, and 2085 color properties

Conflicts:
    libavcodec/options_table.h
    libavcodec/version.h
    libavutil/pixdesc.c
    libavutil/pixfmt.h
    libavutil/version.h

Merged-by: James Almer <jamrial@gmail.com>
 2016-09-28 13:12:18 -03:00
Sasi Inguva 3cb400c11a avutil/frame: Add a flag to discard frame after decode. 
Signed-off-by: Sasi Inguva <isasi@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-09-19 19:51:13 +02:00