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Andreas Rheinhardt ec1b6e0cd4 avcodec/ccaption_dec: Avoid relocations for strings 
The longest string here takes four bytes, so using an array
of pointers is wasteful even when ignoring the cost of relocations;
the lack of relocations also implies that this array
will now be put into .rodata and not into .data.rel.ro.

Static asserts are used to ensure that all strings are always
properly zero-terminated.

Tested-by: Marth64 <marth64@proxyid.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-08 00:59:24 +01:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc avcodec/vdpau: Deprecate redundant allocators and getter/setter 2024-03-08 00:58:40 +01:00
ffbuild riscv: test for assembler support 2023-12-08 17:21:09 +02:00
fftools fftools/ffprobe: add AVFilmGrainParams printing 2024-03-07 21:09:06 +01:00
libavcodec avcodec/ccaption_dec: Avoid relocations for strings 2024-03-08 00:59:24 +01:00
libavdevice libs: bump major version for all libraries 2024-03-07 11:29:43 -03:00
libavfilter avfilter/vf_showinfo: add AVFilmGrainAOMParams support 2024-03-07 21:08:53 +01:00
libavformat lavf/matroskadec: add missing linebreaks in error messages 2024-03-07 15:59:31 +01:00
libavutil libs: bump major version for all libraries 2024-03-07 11:29:43 -03:00
libpostproc libs: bump major version for all libraries 2024-03-07 11:29:43 -03:00
libswresample libs: bump major version for all libraries 2024-03-07 11:29:43 -03:00
libswscale libs: bump major version for all libraries 2024-03-07 11:29:43 -03:00
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tests avutil: remove deprecated FF_API_FRAME_PICTURE_NUMBER 2024-03-07 08:53:30 -03:00
tools avformat/avformat: Add FFInputFormat, hide internals of AVInputFormat 2024-03-07 08:53:31 -03:00
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Changelog fftools/ffprobe: add AVFilmGrainParams printing 2024-03-07 21:09:06 +01:00
configure avformat/avformat: Add FFInputFormat, hide internals of AVInputFormat 2024-03-07 08:53:31 -03:00
CONTRIBUTING.md
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README.md
RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +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 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.