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Lauri Kasanen b4c8c03b00 swscale/output: VSX-optimize 16-bit yuv2plane1 
./ffmpeg_g -f rawvideo -pix_fmt rgb24 -s hd1080 -i /dev/zero -pix_fmt yuv420p16le \
-f null -vframes 100 -v error -nostats -

2120 UNITS in planar1,   65393 runs,    143 skips

-cpuflags 0

19157 UNITS in planar1,   65512 runs,     24 skips

9.03632 speedup, 16be similarly.

Fate passes, each format tested with an image to video conversion.

Signed-off-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-12-14 19:09:11 +01:00
compat additional math.h functions for djgpp 2018-11-28 22:16:07 +11:00
doc doc/metadata: fix error in timebase description 2018-12-14 12:57:34 +01:00
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fftools ffplay: fix -x and -y options when only one of them is used 2018-12-02 00:57:10 +01:00
libavcodec avcodec/mpeg: Initialize quarter_sample parameter from previous thread. 2018-12-14 19:09:11 +01:00
libavdevice lavd/v4l2: Use "int request" as second parameter for ioctl() on Android. 2018-12-11 00:49:22 +01:00
libavfilter lavfi/signalstats: Cast the return value of AV_RN16() to int. 2018-12-12 23:54:14 +01:00
libavformat avformat/ffmetadec: do no limit size of tags to 1024 2018-12-14 17:33:52 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil hwcontext_opencl: Use correct function to enumerate devices 2018-12-02 23:39:19 +00:00
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 swscale/output: VSX-optimize 16-bit yuv2plane1 2018-12-14 19:09:11 +01:00
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tests avformat/nut: add support for yuva444/422p12 pixel format 2018-12-14 11:26:30 +01:00
tools tools/qt-faststart: Allow free atoms after moov atom. 2018-08-01 00:49:54 +02:00
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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.