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Zhao Zhili ba9cd06c76 avutil/avutil: make AV_TIME_BASE_Q available in C++ ISO C++ forbids compound-literals. It's not available with MSVC. This is a known issue from 10 years ago, and that's why there is a av_get_time_base_q(). Since we have no plan to remove AV_TIME_BASE_Q, just make it available in C++. There are multiple choices: 1. Use C++11 syntax: AVRational{1, AV_TIME_BASE} Users may still use C++98 to write new code. So no. 2. Use av_get_time_base_q(). It's for this purpose. But it's not compile time constants as AV_TIME_BASE_Q in C. So I choose av_make_q() as Anton's suggestion. https://libav-devel.libav.narkive.com/ZQCWfTun/patch-0-2-fix-avutil-h-usage-from-c Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>		2023-09-19 00:52:21 +08:00
compat	configure: Set WIN32_LEAN_AND_MEAN at configure time	2023-08-14 22:57:28 +03:00
doc	avutil/avutil: make AV_TIME_BASE_Q available in C++	2023-09-19 00:52:21 +08:00
ffbuild	…
fftools	fftools/ffmpeg: deprecate the -top option	2023-09-18 17:16:06 +02:00
libavcodec	avcodec/jni: make global variables static	2023-09-19 00:41:08 +08:00
libavdevice	avdevice/android_camera: fix missing include for usleep	2023-09-19 00:39:47 +08:00
libavfilter	avfilter/x86/af_afir: add FMA3 SIMD	2023-09-17 11:11:24 +02:00
libavformat	lavf: deprecate AVFMT_FLAG_SHORTEST	2023-09-18 17:10:59 +02:00
libavutil	avutil/avutil: make AV_TIME_BASE_Q available in C++	2023-09-19 00:52:21 +08:00
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libswresample	…
libswscale	avutil/internal: Don't auto-include emms.h	2023-09-04 11:04:45 +02:00
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tests	fftools/ffmpeg: deprecate the -top option	2023-09-18 17:16:06 +02:00
tools	tools/patcheck: Remove test for ancient INIT_VLC_USE_STATIC	2023-09-11 00:26:34 +02:00
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Changelog	fftools/ffmpeg: deprecate the -top option	2023-09-18 17:16:06 +02:00
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configure	avformat/libssh: avoid deprecated functions	2023-09-18 08:43:24 -04:00

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.