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Andreas Rheinhardt 0172deccc4 avcodec/h264_levels, h265_profile_level: Avoid relocations 
H.264 and H.265 levels' names are usually of the form "x" or "x.y"
with x and y being single digits; the one exception are the H.264 1b
levels. All of those levels' names fit into a char[4] and it is likely
that this future levels will do so, too.

Therefore this commit changes the H26(4|5)LevelDescriptor structures
to use such a char [4] instead of a pointer to a const char. This makes
the structures smaller (when sizeof(char*) == 8) and avoids relocations,
thereby moving the corresponding arrays from .data.rel.ro into .rodata.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-04 07:56:40 +02:00
compat compat/cuda: add __expf() implementation 2021-08-14 15:06:47 +02:00
doc avcodec/avcodec: Allow up to seven codec ids per parser 2021-09-02 19:02:35 +02:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools fftools/ffmpeg: Remove unused fields 2021-09-03 19:43:53 +02:00
libavcodec avcodec/h264_levels, h265_profile_level: Avoid relocations 2021-09-04 07:56:40 +02:00
libavdevice avdevice/decklink: support for more duplex mode for Decklink 8K Pro 2021-08-16 10:00:39 +08:00
libavfilter avfilter/af_silencedetect: add planar sample formats support 2021-09-02 21:34:17 +02:00
libavformat avformat/mux: Fix double-free when using AVPacket.opaque_ref 2021-09-03 19:23:18 +02:00
libavutil lavu/slicethread: return ENOSYS rather than EINVAL in the dummy func 2021-08-29 18:45:04 +02:00
libpostproc postproc/postprocess: Remove legacy cruft 2021-07-29 22:02:06 +02:00
libswresample (postproc|swresample)/version: Don't include libavutil/avutil.h 2021-07-29 22:02:05 +02:00
libswscale avutil/internal, swresample/audioconvert: Remove cpu.h inclusions 2021-07-22 14:33:45 +02:00
presets
tests fate/wma: Account for trimmed samples in wmapro-ism test 2021-09-02 19:59:34 +02:00
tools tools/dvd2concat: use option keyword 2021-08-22 11:44:17 +02:00
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.gitignore avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
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.travis.yml
Changelog avformat: add an AV1 Low overhead bitstream format muxer 2021-09-01 19:55:30 -03:00
configure avformat: add an AV1 Low overhead bitstream format muxer 2021-09-01 19:55:30 -03:00
CONTRIBUTING.md
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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
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 a mean to alter decoded Audio and Video through chain of 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.