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Andreas Rheinhardt 6df9020f45 cbs_mpeg2: Improve performance of writing slices 
Instead of using a combination of bitreader and -writer for copying data,
one can byte-align the (obsolete and removed) bitreader to improve performance.
One can even use memcpy in the normal case.
This improved the time needed for writing the slicedata from 33618 to
2370 decicycles when tested on a video originating from a DVD (4194394
runs).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@googlemail.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>
2018-11-11 19:22:52 +00:00
compat
doc avfilter/vf_lut3d: add spline 1D interpolation 2018-11-10 22:08:42 +01:00
ffbuild
fftools fftools/ffmpeg: Indent the code 2018-11-11 09:12:50 +08:00
libavcodec cbs_mpeg2: Improve performance of writing slices 2018-11-11 19:22:52 +00:00
libavdevice Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libavfilter avfilter/vf_lut3d: ignore last whitespace when comparing LUT size string 2018-11-11 13:36:45 +01:00
libavformat lavf/apngdec: Return EOF for incomplete files. 2018-11-08 13:38:08 +01:00
libavresample
libavutil libavutil: Undeprecate the AVFrame reordered_opaque field 2018-11-05 15:52:08 +02:00
libpostproc Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libswresample Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libswscale Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
presets
tests cbs_h265: Add PTL parsing for sublayers 2018-11-11 17:22:09 +00:00
tools tools/qt-faststart: Allow free atoms after moov atom. 2018-08-01 00:49:54 +02:00
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Changelog avcodec: libdav1d AV1 decoder wrapper. 2018-11-05 21:48:11 -03:00
configure avcodec: libdav1d AV1 decoder wrapper. 2018-11-05 21:48:11 -03:00
CONTRIBUTING.md
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MAINTAINERS MAINTAINERS: remove myself as hls demuxer maintainer 2018-10-16 01:18:00 +03:00
Makefile avcodec/parser: move parsers list and related API to its own file 2018-07-21 16:08:29 -03:00
README.md
RELEASE RELEASE: bump to 4.1.git 2018-11-02 00:55:49 +01:00

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.