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Andreas Rheinhardt ba96f2254a Revert "mpeg4videodec: raise an error if sprite_trajectory.table is NULL" 
This reverts commit 6ac0e78183.

The mpeg4video parser can reach code that presumes that a certain VLC
has been initialized; yet Libav did not ensure this and Libav bug #1012
[1] is about an ensuing crash.

Instead of fixing the root cause a simple check for whether said VLC
has already been initialized was added; said check is inherently racy.

The proper fix is of course to ensure that the VLC is initialized and
commit 7c76eaeca2 already ensured this,
so there was no need to merge 6ac0e78183
at all. This commit therefore reverts said commit.

[1]: https://bugzilla.libav.org/show_bug.cgi?id=1012

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-01-27 11:53:22 +01:00
compat All: update names in copyright headers 2021-01-20 01:02:56 -06:00
doc avfilter: add colortemperature filter 2021-01-27 11:48:00 +01:00
ffbuild ffbuild: Refine MIPS handling 2020-07-23 16:30:02 +02:00
fftools avcodec: remove long dead debug_mv code 2021-01-25 19:03:22 -03:00
libavcodec Revert "mpeg4videodec: raise an error if sprite_trajectory.table is NULL" 2021-01-27 11:53:22 +01:00
libavdevice avdevice/dshow: Add namespace prefix to the remaining global symbols 2021-01-25 19:31:11 -03:00
libavfilter avfilter: add colortemperature filter 2021-01-27 11:48:00 +01:00
libavformat avformat/url: Reorder elements of URLProtocol to make it smaller 2021-01-27 11:53:22 +01:00
libavresample
libavutil libavutil/frame.h: correct typo for AVFilmGrainParams in comment 2021-01-27 13:13:47 +08:00
libpostproc lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 2021-01-01 14:14:57 +01:00
libswresample swresample/audioconvert: Fix left shift of negative value 2020-09-30 10:50:45 +02:00
libswscale lsws/ppc/yuv2rgb: Fix transparency converting from yuv->rgb32. 2021-01-24 17:17:29 +01:00
presets
tests fate/hlsenc: rework the ffprobe dependency of hls-fmp4_ac3 2021-01-25 12:19:51 -03:00
tools tools/target_dec_fuzzer: use non-obsolete decoding API 2021-01-26 17:04:45 +01:00
.gitattributes
.gitignore tools/python: add script to convert TensorFlow model (.pb) to native model (.model) 2019-07-01 10:23:47 -03:00
.mailmap mailmap: add entry for myself 2020-07-13 11:24:04 +08:00
.travis.yml
Changelog avfilter: add colortemperature filter 2021-01-27 11:48:00 +01:00
configure configure: add fallback to $arch in msvc assembler check. 2021-01-25 09:09:00 +01:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: update names 2021-01-20 01:04:26 -06:00
Makefile tools/enum_options: fix build and add to Makefile 2020-11-20 15:20:24 +01:00
README.md
RELEASE RELEASE: We are after the 4.3 branch point, update for that 2020-06-10 00:20:24 +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.
  • 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.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.