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James Almer 22aa71d4da 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>
2025-02-12 18:53:25 -03:00
compat compat/w32pthreads: change pthread_t into pointer to malloced struct 2024-12-16 09:43:19 +01:00
doc avfilter/vpp_amf: add option reset_sar 2025-02-10 19:59:26 +05:30
ffbuild ffbuild/bin2c: misc fix 2025-01-13 23:58:36 +08:00
fftools fftools/ffmpeg_opt: Remove audio_drift_threshold 2025-02-02 17:03:32 +01:00
libavcodec avcodec/libtheora: fix setting keyframe_mask 2025-02-12 18:53:25 -03:00
libavdevice avdevice/alsa: simplify passing ff_alsa_open a channel layout 2025-02-12 18:49:07 -03:00
libavfilter avfilter/vpp_amf: add option reset_sar 2025-02-10 19:59:26 +05:30
libavformat avformat/mov: Store trak > udta metadata on each stream 2025-02-11 15:22:59 +02:00
libavutil avutil/hwcontext_amf: fix crash on uninit after init failed 2025-02-07 13:30:01 +01:00
libpostproc */version.h: bump after release/7.1 branch 2024-09-24 17:10:35 +02:00
libswresample libswresample/rematrix: add support for custom order channel layouts 2025-02-05 09:51:08 -03:00
libswscale swscale/graph: copy scaler_params to the legacy subpass context 2025-02-07 13:17:37 -03:00
presets
tests checkasm: aacencdsp: Actually test nonzero values in quant_bands 2025-02-10 14:03:25 +02:00
tools tools/target_swr_fuzzer: do not use negative numbers of samples 2025-01-21 22:55:10 +01:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore .gitignore: add exclusions for shader .c files 2024-11-18 07:54:21 +01:00
.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog avcodec: add a ffv1 parser 2025-02-06 13:48:47 -03:00
configure lavc/videotoolboxenc: Add spatial_aq option 2025-02-11 11:33:27 +02:00
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 2024-11-03 19:35:23 +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 2024-11-28 23:19:00 +01:00
Makefile configure: Add wasm as a fake arch 2024-12-04 16:43:06 +08:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update release number after release/7.1 branch 2024-10-09 01:55:50 +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.