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Andreas Rheinhardt 497a0f839d avformat/img2: Avoid relocations for ff_img_tags
The strings here are so short that using a pointer is wasteful
(the longest string takes nine bytes; on 64 bit systems,
the pointer+padding already take 12 bytes). So avoid them
and add asserts to ensure that no one ever tries to use a too
long tag.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-04-11 12:53:26 +02:00
compat
doc avcodec/ac3enc: Remove disabled code for RealAudio variant of AC-3 2024-04-11 12:52:46 +02:00
ffbuild ffbuild/libversion.sh: add shebang 2024-04-09 15:34:53 +02:00
fftools fftools/ffmpeg_filter: implement filtergraph chaining 2024-04-09 10:34:18 +02:00
libavcodec avcodec/flacenc: Avoid shift where possible 2024-04-11 12:53:26 +02:00
libavdevice
libavfilter lavfi/dnn_backend_torch: Include mem.h 2024-04-10 18:18:49 +08:00
libavformat avformat/img2: Avoid relocations for ff_img_tags 2024-04-11 12:53:26 +02:00
libavutil aarch64: Factorize code for CPU feature detection on Apple platforms 2024-04-10 10:39:08 +03:00
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tests tests/checkasm: add exclude_guest for non-x86 linux perf 2024-04-10 13:37:40 +02:00
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Changelog fftools/ffmpeg_filter: implement filtergraph chaining 2024-04-09 10:34:18 +02:00
configure configure, etc: switch to shebang without space 2024-04-09 16:01:24 +02:00
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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.