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Zhao Zhili 693c5be320 avformat/flvenc: fix timestamp of key frame index 
Firstly, the timestamps generated from framerate are inaccurate for
variable framerate mode.

Secondly, the timestamps always start from zero, while pts/dts can
start from nonzero. FLV demuxer rejects such index with message:
"Found invalid index entries, clearing the index".
2022-08-03 17:52:45 +08:00
compat avfilter: add chromakey_cuda filter 2022-07-10 17:20:15 +02:00
doc lavc: add API for exporting reconstructed frames from encoders 2022-08-02 10:46:11 +02:00
ffbuild ffbuild/common: Fix CPPFLAGS applied for compiling C++ files 2022-05-24 21:30:52 +02:00
fftools ffmpeg_opt: consider HW acceleration method when selecting decoder 2022-08-03 11:10:57 +08:00
libavcodec avcodec/libaomenc: support AV_CODEC_CAP_ENCODER_RECON_FRAME 2022-08-02 09:56:27 -03:00
libavdevice avdevice/v4l2: fix leak of timefilter 2022-08-03 17:52:25 +08:00
libavfilter avfilter/vf_cropdetect: Remove set-but-unused variable 2022-07-30 22:14:26 +02:00
libavformat avformat/flvenc: fix timestamp of key frame index 2022-08-03 17:52:45 +08:00
libavutil lavu/frame: allow calling av_frame_make_writable() on non-refcounted frames 2022-08-02 10:44:37 +02:00
libpostproc Bump versions after 5.1 branch 2022-07-13 00:29:05 +02:00
libswresample Bump versions after 5.1 branch 2022-07-13 00:29:05 +02:00
libswscale swscale/rgb2rgb: Don't cast const away 2022-07-31 01:09:52 +02:00
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tests avformat/flvenc: fix timestamp of key frame index 2022-08-03 17:52:45 +08:00
tools tools/target_dec_fuzzer: set avctx->workaround_bugs flags 2022-07-26 09:15:16 -03:00
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Changelog Changelog: Update after last commit 2022-07-30 13:20:02 +02:00
configure lavc/libx264: support AV_CODEC_CAP_ENCODER_RECON_FRAME 2022-08-02 10:52:15 +02:00
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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 MAINTAINERS: add myself as maintainer for LoongArch. 2022-06-08 18:29:30 +02:00
Makefile Makefile: Prompt for reconfigure on lavc/hwaccels.h modification 2022-07-01 00:34:38 +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

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.