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Anton Khirnov bb6f591c49 ffmpeg: drop useless framerate assignments 
If the input stream framerate is known, it will be configured on the
relevant filtergraph input and get propagated to the output stream in
the above line. That makes these assignments redundant.
2021-12-07 11:23:45 +01:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc doc/filters: note duration range in xfade 2021-12-06 16:35:47 +05:30
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools ffmpeg: drop useless framerate assignments 2021-12-07 11:23:45 +01:00
libavcodec packet: add description for the AVPacket.time_base field 2021-12-06 22:16:13 +01:00
libavdevice lavd/v4l2: detect device name truncation 2021-12-07 11:16:14 +01:00
libavfilter lavfi/vf_subtitles: stop using deprecated ass_set_aspect_ratio() 2021-12-07 11:16:14 +01:00
libavformat lavf/protocols: avoid discarding const in avio_enum_protocols() 2021-12-07 11:16:14 +01:00
libavutil avutil/frame: Treat frame as uninitialized in get_frame_defaults() 2021-12-05 13:27:38 +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
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tests fate/ffmpeg: Fix requirements of shortest tests 2021-12-02 17:44:27 +01:00
tools tools/target_dec_fuzzer: Adjust threshold for HQ_HQA 2021-12-06 14:25:55 +01:00
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configure lavfi/vf_subtitles: stop using deprecated ass_set_aspect_ratio() 2021-12-07 11:16:14 +01:00
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INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
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 Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00

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 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.