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Andreas Rheinhardt edc50658d9 avcodec/vlc: Add functions to init static VLCElem[] without VLC
For lots of static VLCs, the number of bits is not read from
VLC.bits, but rather a compile-constant that is hardcoded
at the callsite of get_vlc2(). Only VLC.table is ever used
and not using it directly is just an unnecessary indirection.

This commit adds helper functions and macros to avoid the VLC
structure when initializing VLC tables; there are 2x2 functions:
Two choices for init_sparse or from_lengths and two choices
for "overlong" initialization (as used when multiple VLCs are
initialized that share the same underlying table).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-10-31 20:46:59 +01:00
compat
doc avutil/pixdesc: add AV_PIX_FMT_FLAG_XYZ 2023-10-31 15:46:07 +01:00
ffbuild
fftools ffprobe: print the non-diegetic stream disposition flag 2023-10-25 21:55:01 -03:00
libavcodec avcodec/vlc: Add functions to init static VLCElem[] without VLC 2023-10-31 20:46:59 +01:00
libavdevice Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libavfilter avfilter/drawutils: remove redundant xyz format check 2023-10-31 15:46:38 +01:00
libavformat avformat/vf_vapoursynth: simplify xyz format check 2023-10-31 15:46:38 +01:00
libavutil avutil/pixdesc: simplify xyz pixfmt check 2023-10-31 15:46:38 +01:00
libpostproc Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswresample Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswscale Bump versions after 6.1 2023-10-29 16:19:14 +01:00
presets
tests avfilter/drawutils: ban XYZ formats 2023-10-31 15:43:30 +01:00
tools tools/target_dec_fuzzer: Adjust wmapro threshold 2023-10-03 20:09:27 +02:00
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Changelog Changelog: mark 6.1 2023-10-29 12:55:37 -03:00
configure configure: Improve aarch64 feature detection on older, broken Clang versions 2023-10-31 12:23:31 +02:00
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MAINTAINERS MAINTAINERS: add entry for jpegxl* 2023-10-17 08:44:23 -04:00
Makefile tools: Don't include the direct library names when linking 2023-10-02 22:49:07 +03:00
README.md
RELEASE

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.