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James Almer e7e022094a
avcodec/libtheora: fix setting keyframe_mask 
t_info.keyframe_granule_shift is set to the library default of 6, which is ok
for gop sizes up to 63. Since there's apparently no way to query the updated
value after having forced a gop value with TH_ENCCTL_SET_KEYFRAME_FREQUENCY_FORCE,
calculate it manually instead.

Fixes ticket #11454.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 22aa71d4da)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 17:29:41 +02:00
compat compat: Fix the fallback definition of stdc_trailing_zeros 2024-09-24 14:00:27 +03:00
doc doc: replace http/git by https urls 2025-06-11 17:29:41 +02:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffmpeg_filter: also remove display matrix side data from buffered frames 2025-03-04 10:29:16 -03:00
libavcodec avcodec/libtheora: fix setting keyframe_mask 2025-06-11 17:29:41 +02:00
libavdevice avdevice/decklink_dec: fix leaks on error 2024-09-29 10:30:49 +02:00
libavfilter avfilter/avfiltergraph: fix regression in picking channel layout 2025-05-22 19:40:35 -03:00
libavformat Revert "avformat/mpegts: update stream info when PMT ES stream_type changes" 2025-06-11 17:29:40 +02:00
libavutil avutil/downmix_info: add missing semicolon 2025-02-06 18:44:04 -03:00
libpostproc */version.h: bump minor versions for release/7.1 2024-09-24 17:07:30 +02:00
libswresample arm: Consistently use proper interworking function returns 2024-10-10 23:56:10 +03:00
libswscale lsws/ppc/yuv2rgb_altivec: Fix build in non-VSX environments with Clang 2025-03-11 00:37:35 -04:00
presets
tests Revert "avformat/mpegts: update stream info when PMT ES stream_type changes" 2025-06-11 17:29:40 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for EACMV 2025-01-03 18:28:46 +01:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog Prepare for 7.1.1 2025-03-02 16:29:39 +01:00
configure configure: Use MSYSTEM_CARCH for default arch on msys2 2025-05-28 10:35:33 +03:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
INSTALL.md INSTALL: explain the circular dependency issue and solution 2025-01-03 18:28:37 +01:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: Lauri is still available but is really low on time nowadays 2025-01-03 18:28:41 +01:00
Makefile add tools/target_swr_fuzzer 2024-08-08 15:26:52 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE Prepare for 7.1.1 2025-03-02 16:29:39 +01:00
RELEASE_NOTES RELEASE_NOTES: Based on the version from 5.1 2024-09-29 18:47:04 +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.