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FFmpeg git repo
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Andreas Rheinhardt efc323062c fftools/ffmpeg_filter: Avoid DynBuf API to improve error checks 
choose_pix_fmts() used the dynamic buffer API to write strings;
as is common among uses of this API, only opening the dynamic buffer
was checked, but not the end result, leading to crashes in case
of allocation failure.
Furthermore, some static strings were duplicated; the allocations
performed here were not properly checked: Allocation failure would
be treated as "could not determine pixel format".
The first issue is fixed by switching to the AVBPrint API which allows
to easily perform checks at the end. Furthermore, the internal buffer
avoids almost all allocations in case the AVBPrint is used.
The AVBPrint also allows to solve the second issue in an elegant way,
because it allows to return the static strings directly.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-12-03 16:12:52 +01:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc avfilter: add audio dynamic smooth filter 2021-12-02 09:39:27 +01:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools fftools/ffmpeg_filter: Avoid DynBuf API to improve error checks 2021-12-03 16:12:52 +01:00
libavcodec all: Remove unused-but-set variables 2021-12-03 16:09:14 +01:00
libavdevice avdevice/lavfi: Properly free an AVDictionary 2021-12-03 10:46:01 +01:00
libavfilter all: Remove unused-but-set variables 2021-12-03 16:09:14 +01:00
libavformat all: Use av_memdup() where appropriate 2021-12-03 16:07:02 +01:00
libavutil all: Use av_memdup() where appropriate 2021-12-03 16:07:02 +01:00
libpostproc libpostproc/postprocess_template: Don't reimplement FFSWAP 2021-10-02 17:13:42 +02:00
libswresample all: Remove unused-but-set variables 2021-12-03 16:09:14 +01:00
libswscale swscale/yuv2rgb: Silence a set-but-unused-variable warning 2021-12-03 16:10:51 +01:00
presets
tests fate/ffmpeg: Fix requirements of shortest tests 2021-12-02 17:44:27 +01:00
tools tools/target_dec_fuzzer: Adjust DXA threshold 2021-12-01 17:44:56 +01:00
.gitattributes
.gitignore avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
.mailmap
.travis.yml
Changelog Changelog: update with recent Vulkan filter additions 2021-12-02 11:08:58 +01:00
configure avfilter: add a flip_vulkan filter 2021-12-02 11:06:24 +01:00
CONTRIBUTING.md
COPYING.GPLv2
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INSTALL.md
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MAINTAINERS avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
Makefile FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE

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 means to alter decoded audio and video through a directed graph of connected 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.