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Andreas Rheinhardt c797b6400d avformat/matroskaenc: Support rotations 
Matroska supports orthogonal transformations (both pure rotations
as well as reflections) via its 3D-projection elements, namely
ProjectionPoseYaw (for a horizontal reflection) as well as
ProjectionPoseRoll (for rotations). This commit adds support
for this.

Support for this in the demuxer has been added in
937bb6bbc1 and
the sample used in the matroska-dovi-write-config8 FATE-test
includes a displaymatrix indicating a rotation which is now
properly written and read, thereby providing coverage for
the relevant code in the muxer as well as the demuxer.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-08-10 00:17:11 +02:00
compat w32pthreads: Fix function signature mismatches for CreateThread 2023-08-04 21:51:20 +03:00
doc lavc/libx264: add mb_info option 2023-08-08 10:06:38 +02:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools fftools/ffprobe: Use proper enum type 2023-08-08 20:20:36 +02:00
libavcodec avcodec/on2avc: use correct fft sizes 2023-08-08 18:33:21 +02:00
libavdevice avdevice/pulse_audio_common: Avoid inclusion of avcodec.h 2023-08-05 09:40:06 +02:00
libavfilter avfilter/af_vibrato: refactor code 2023-08-08 17:45:32 +02:00
libavformat avformat/matroskaenc: Support rotations 2023-08-10 00:17:11 +02:00
libavutil lavu: add video_hint API 2023-08-08 09:46:11 +02:00
libpostproc version.h: Bump minor post 6.0 branch 2023-02-19 18:37:36 +01:00
libswresample libswresample: Prevent out of bounds. 2023-08-02 17:31:13 +02:00
libswscale swscale/rgb2rgb2: rework RISC-V V shuffle_bytes_{1230,3012} 2023-07-21 22:18:02 +03:00
presets
tests avformat/matroskaenc: Support rotations 2023-08-10 00:17:11 +02:00
tools tools/target_bsf_fuzzer: fix some filter names 2023-06-29 22:44:11 -03:00
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.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap mailmap: stop git lying about who I commit things as 2022-11-04 19:37:46 +01:00
.travis.yml
Changelog lavc/libx264: add mb_info option 2023-08-08 10:06:38 +02:00
configure configure: use just the pkg-config for sndio 2023-08-07 22:31:06 +02:00
CONTRIBUTING.md
COPYING.GPLv2
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CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
INSTALL.md
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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
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.