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Andreas Rheinhardt a105b11a9d avcodec/cbs: Add specialization for ff_cbs_(read|write)_unsigned() 
These functions allow not only to read and write unsigned values,
but also to check ranges and to emit trace output which can be
beautified when processing arrays (indices like "[i]" are replaced
by their actual numbers).

Yet lots of callers actually only need something simpler:
Their range is only implicitly restricted by the amount
of bits used and they are not part of arrays, hence don't
need this beautification.

This commit adds specializations for these callers;
this is very beneficial size-wise (it reduced the size
of .text by 23312 bytes here), as a call is now cheaper.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-07-30 21:36:31 +02:00
compat
doc avfilter/avf_showcwt: add iscale option 2023-07-30 18:14:16 +02:00
ffbuild
fftools fftools/ffprobe: fix handling parse_options() return value 2023-07-28 09:11:26 -03:00
libavcodec avcodec/cbs: Add specialization for ff_cbs_(read|write)_unsigned() 2023-07-30 21:36:31 +02:00
libavdevice lavd/opengl_enc: fix a compiler error 2023-07-24 10:17:51 +08:00
libavfilter avfilter/avf_showcwt: improve range detection for morlet scales 2023-07-30 19:57:50 +02:00
libavformat avformat/lrcdec: Fix declaration-after-statement warning 2023-07-29 17:58:58 +02:00
libavutil macos_kperf: fix incomplete prototype 2023-07-22 21:35:15 +03:00
libpostproc
libswresample Move bessel_i0() from swresample/resample to avutil/mathematics 2023-05-29 00:45:28 +02:00
libswscale swscale/rgb2rgb2: rework RISC-V V shuffle_bytes_{1230,3012} 2023-07-21 22:18:02 +03:00
presets
tests avformat/mov: enable identifying TTML subtitle streams as such 2023-07-28 15:31:56 +03:00
tools tools/target_bsf_fuzzer: fix some filter names 2023-06-29 22:44:11 -03:00
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Changelog avfilter: add transpose_vt for videotoolbox pix_fmt 2023-07-23 11:52:28 +08:00
configure avfilter: add transpose_vt for videotoolbox pix_fmt 2023-07-23 11:52:28 +08:00
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MAINTAINERS MAINTAINERS: change Leo Izen IRC nickname 2023-06-20 12:46:47 -04:00
Makefile tools: add an AV_CODEC_CAP_ENCODER_RECON_FRAME test tool 2023-03-28 13:00:42 +02:00
README.md
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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.