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Zhao Zhili f0f596dbc6 avutil/internal: remove timer.h again 
timer.h has been removed from internal.h, and then added back with
3e6088f for convenience. This patch removed it again for the
following reasons:

1. Only includes what's necessary is a common and safe strategy.

2. It fixed some build errors on Android:
  a. libavutil/timer.h includes sys/ioctl.h, and ioctl.h includes
     termios.h on Android.
  b. termios.h reserves names prefixed with ‘c_’, ‘V’, ‘I’, ‘O’, and
     ‘TC’; and names prefixed with ‘B’ followed by a digit.
  c. libavcodec uses B0 B1 and so on as variable names a lot. So
     the code failed to build with --enable-linux-perf, or
     --target-os=Linux.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2023-04-15 04:21:33 +08:00
compat compat: Use '-' instead of '/' for rc.exe options 2023-02-13 13:49:40 +02:00
doc avutil: make av_frame_get_plane_buffer accept a const AVFrame* 2023-04-14 10:53:28 +02:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools ffmpeg: make timestamp discontinuity logging a warning 2023-04-14 15:06:41 +03:00
libavcodec codec/aarch64/hevc: add transform_luma_neon 2023-04-14 12:07:57 +03:00
libavdevice avdevice/decklink_enc: Add support for compressed AC-3 output over SDI 2023-04-08 20:08:18 +02:00
libavfilter lavfi/unsharp: clarify invalid filter param constraints 2023-04-02 17:07:51 +02:00
libavformat lavf/rawdec: mark raw demuxers as having no timestamps 2023-04-13 15:34:07 +02:00
libavutil avutil/internal: remove timer.h again 2023-04-15 04:21:33 +08:00
libpostproc version.h: Bump minor post 6.0 branch 2023-02-19 18:37:36 +01:00
libswresample swresample/swresample: add a used channel layout option using the new API 2023-02-19 18:28:45 -03:00
libswscale version.h: Bump minor post 6.0 branch 2023-02-19 18:37:36 +01:00
presets
tests fftools/ffmpeg: stop using fake dts for generating timestamps 2023-04-13 15:34:07 +02:00
tools tools/zmqshell: port to python3 2023-04-02 16:28:54 +02:00
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.mailmap mailmap: stop git lying about who I commit things as 2022-11-04 19:37:46 +01:00
.travis.yml
Changelog lavc/libaribcaption.c: add ARIB caption decoder using libaribcaption 2023-03-28 12:05:19 -04:00
configure configure: remove duplicated extralibs of android_camera 2023-04-11 19:57:09 +08:00
CONTRIBUTING.md
COPYING.GPLv2
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CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: add maintainer for the imf demuxer 2023-02-13 18:41:22 +01:00
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.