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Ruiling Song 58569162c2 lavf: make overlay_qsv work based on framesync 
The existing version which was cherry-picked from Libav does not work
with FFmpeg framework, because ff_request_frame() was totally
different between Libav (recursive) and FFmpeg (non-recursive).
The existing overlay_qsv implementation depends on the recursive version
of ff_request_frame to trigger immediate call to request_frame() on input pad.
But this has been removed in FFmpeg since "lavfi: make request_frame() non-recursive."
Now that we have handy framesync support in FFmpeg, so I make it work
based on framesync. Some other fixing which is also needed to make
overlay_qsv work are put in a separate patch.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
(cherry picked from commit f3341a0452)
2018-04-23 22:56:06 +01:00
compat compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
doc doc/APIchanges: Fix typos in hashes 2018-04-20 01:53:41 +02:00
ffbuild Merge commit '17b6c7efb471e8ff1b8a7271f6531ba1d52bf69c' 2017-11-12 01:02:02 -03:00
fftools ffprobe: report unavailable SAR correctly in stream info 2018-04-17 20:13:25 +01:00
libavcodec avcodec: Fix AVClass .version 2018-04-20 01:53:41 +02:00
libavdevice avdevice/android_camera: Fix AVClass.version 2018-04-20 01:53:41 +02:00
libavfilter lavf: make overlay_qsv work based on framesync 2018-04-23 22:56:06 +01:00
libavformat avformat/segafilm - revert keyframe detection 2018-04-22 16:34:39 -03:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil Bump minor versions for branching release/4.0 2018-04-16 12:35:12 +02:00
libpostproc Bump minor versions for branching release/4.0 2018-04-16 12:35:12 +02:00
libswresample swresample/arm: remove unintentional relocation. 2018-04-20 01:53:41 +02:00
libswscale Bump minor versions for branching release/4.0 2018-04-16 12:35:12 +02:00
presets
tests tests/checkasm/checkasm: Provide verbose failure information on float_near_abs_eps() failures 2018-04-14 15:54:06 +02:00
tools lav*,tests: remove several register_all calls 2018-04-02 03:26:22 +01:00
.gitattributes
.gitignore Remove the ffserver program 2018-01-06 18:31:37 +00:00
.travis.yml Merge commit '4809781586d1c956005f72946a2aab5915eab350' 2017-10-28 15:08:31 -03:00
Changelog Changelog: replace <next> by 4.0 2018-04-20 01:55:05 +02:00
configure configure: fix clang-cl check in the MSVC section 2018-04-19 09:58:48 +02:00
CONTRIBUTING.md
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INSTALL.md
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MAINTAINERS MAINTAINERS: add myself to documentation section 2018-04-13 09:40:27 -08:00
Makefile Revert "lavd: add new API for iterating input and output devices" 2018-03-31 23:26:31 +01:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE Update bunch of versions to 4.0 2018-04-16 12:42:29 +02:00
RELEASE_NOTES add release notes based on release 3.4 2018-04-16 12:41:03 +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 a mean to alter decoded Audio and Video through chain of 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.