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Wenbin Chen 52ad617af5 libavcodec/qsvenc: Use parameter from AVCodecContext to reset qsv codec 
Using parameter from AVCodecContext to reset qsv codec is more suitable
for MFXVideoENCODE_Reset()'s usage. Per-frame metadata is more suitable
for the usage of mfxEncodeCtrl being passed to
MFXVideoENCODE_EncodeFrameAsync(). Now change it to use the value
from AVCodecContext.
Because q->param is passed to both "in" and "out" parameters when call
MFXVideoENCODE_Query(), the value in q->param may be changed. New
variables are added to store old configuration, so that we can detect
real parameter change.

Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
2022-07-20 12:35:23 +08:00
compat avfilter: add chromakey_cuda filter 2022-07-10 17:20:15 +02:00
doc libavcodec/qsvenc: Use parameter from AVCodecContext to reset qsv codec 2022-07-20 12:35:23 +08:00
ffbuild ffbuild/common: Fix CPPFLAGS applied for compiling C++ files 2022-05-24 21:30:52 +02:00
fftools ffmpeg: use AVFrame.duration instead of AVFrame.pkt_duration 2022-07-19 12:27:18 +02:00
libavcodec libavcodec/qsvenc: Use parameter from AVCodecContext to reset qsv codec 2022-07-20 12:35:23 +08:00
libavdevice lavd: use AVFrame.duration instead of AVFrame.pkt_duration 2022-07-19 12:27:17 +02:00
libavfilter avfilter/vsrc_ddagrab: check for existence of DPI_AWARENESS_CONTEXT 2022-07-19 13:57:38 +02:00
libavformat lavf: use AVFrame.duration instead of AVFrame.pkt_duration 2022-07-19 12:27:17 +02:00
libavutil lavu/frame: add a duration field to AVFrame 2022-07-19 12:27:17 +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: add NV16 input/output 2022-07-19 12:20:16 +02:00
presets
tests tests/api: use AVFrame.duration instead of AVFrame.pkt_duration 2022-07-19 12:27:18 +02:00
tools tools/target_dec_fuzzer: adjust threshold for flic 2022-07-12 21:55:22 +02:00
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Changelog Changelog: move ddagrab addition to correct version 2022-07-18 13:52:48 +02:00
configure avfilter/vsrc_ddagrab: check for existence of DPI_AWARENESS_CONTEXT 2022-07-19 13:57:38 +02:00
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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.