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Marton Balint 6b6f7db819 avcodec: add AVCodecContext.frame_num as 64 bit variant to frame_number 
Frame counters can overflow relatively easily (INT_MAX number of frames is
slightly more than 1 year for 60 fps content), so make sure we use 64 bit
values for them.

Also deprecate the old 32 bit frame_number attribute.

Signed-off-by: Marton Balint <cus@passwd.hu>
 		2023-02-13 00:36:46 +01:00
compat compat/cuda: switch from powf to __powf intrinsic 2022-09-03 20:27:34 +02:00
doc avcodec: add AVCodecContext.frame_num as 64 bit variant to frame_number 2023-02-13 00:36:46 +01:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools avcodec: add AVCodecContext.frame_num as 64 bit variant to frame_number 2023-02-13 00:36:46 +01:00
libavcodec avcodec: add AVCodecContext.frame_num as 64 bit variant to frame_number 2023-02-13 00:36:46 +01:00
libavdevice Bump major versions of all libraries 2023-02-09 15:35:14 +01:00
libavfilter avfilter: use ff_inlink_make_frame_writable() 2023-02-12 13:32:00 +01:00
libavformat avformat: add RKA demuxer 2023-02-11 21:29:35 +01:00
libavutil Bump major versions of all libraries 2023-02-09 15:35:14 +01:00
libpostproc Bump major versions of all libraries 2023-02-09 15:35:14 +01:00
libswresample x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
libswscale Bump major versions of all libraries 2023-02-09 15:35:14 +01:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests ffprobe: report the corrupt flag on packets 2023-02-09 12:45:53 +01:00
tools avcodec: add AVCodecContext.frame_num as 64 bit variant to frame_number 2023-02-13 00:36:46 +01:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.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 Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
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COPYING.GPLv3
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COPYING.LGPLv2.1
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CREDITS CREDITS: redirect to Git log, remove current outdated content 2013-01-31 18:02:52 +01:00
Changelog fftools/ffmpeg: add special syntax for loading filter options from files 2023-02-12 10:34:45 +01:00
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS lavc: deprecate CrystalHD decoders 2023-02-04 13:12:28 +01:00
Makefile configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +02:00
configure examples: rename transcoding to transcode 2023-02-11 17:49:01 +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 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.