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Lauri Kasanen 681957b88d swscale/ppc: VSX-optimize yuv2rgb_full 
./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 \
        -s 1200x1440 -f null -vframes 100 -pix_fmt $i -nostats \
        -cpuflags 0 -v error -

This uses 32-bit mul, so POWER8 only.

The following output formats get about 4.5x speedup:

rgb24
  39980 UNITS in yuv2packed1,   32768 runs,      0 skips
   8774 UNITS in yuv2packed1,   32768 runs,      0 skips
bgr24
  40069 UNITS in yuv2packed1,   32768 runs,      0 skips
   8772 UNITS in yuv2packed1,   32766 runs,      2 skips
rgba
  39759 UNITS in yuv2packed1,   32768 runs,      0 skips
   8681 UNITS in yuv2packed1,   32767 runs,      1 skips
bgra
  39729 UNITS in yuv2packed1,   32768 runs,      0 skips
   8696 UNITS in yuv2packed1,   32766 runs,      2 skips
argb
  39766 UNITS in yuv2packed1,   32768 runs,      0 skips
   8672 UNITS in yuv2packed1,   32766 runs,      2 skips
bgra
  39784 UNITS in yuv2packed1,   32768 runs,      0 skips
   8659 UNITS in yuv2packed1,   32767 runs,      1 skips
2019-03-27 09:05:08 +02:00
compat
additional math.h functions for djgpp
2018-11-28 22:16:07 +11:00
doc
avfilter/vf_lensfun: add scale parameter
2019-03-25 22:50:54 +01:00
ffbuild
Merge commit '7e5bde93a1e7641e1622814dafac0be3f413d79b'
2019-03-10 19:31:13 -03:00
fftools
Merge commit '7e5bde93a1e7641e1622814dafac0be3f413d79b'
2019-03-10 19:31:13 -03:00
libavcodec
lavc/h264_levels: add MaxMBPS checking and update fate test.
2019-03-27 00:13:27 +00:00
libavdevice
lavd/v4l2: Fix the type of the probe function.
2019-03-23 23:42:09 +01:00
libavfilter
avfilter/vf_lensfun: add scale parameter
2019-03-25 22:50:54 +01:00
libavformat
avformat/avformat.h: Update the comment for AVInputFormat.flags
2019-03-26 20:58:19 +08:00
libavresample
avresample: remove deprecated attribute from the AVAudioResampleContext struct
2018-01-09 10:56:53 -03:00
libavutil
lavu/opencl: replace va_ext.h with standard name
2019-03-22 09:33:28 +08:00
libpostproc
postproc/postprocess_template: remove FF_REG_sp from clobber list
2018-12-22 17:41:44 +01:00
libswresample
Bump minor version for master after 4.1 branchpoint
2018-11-02 00:53:07 +01:00
libswscale
swscale/ppc: VSX-optimize yuv2rgb_full
2019-03-27 09:05:08 +02:00
presets
…
tests
tests/fate-run: fix regression in encoding options
2019-03-19 01:08:16 -03:00
tools
tools/target_dec_fate.list: add issues 4000 to 6000
2019-03-20 21:12:45 +01:00
.gitattributes
…
.gitignore
Remove the ffserver program
2018-01-06 18:31:37 +00:00
.travis.yml
Merge commit '899ee03088d55152a48830df0899887f055da1de'
2019-03-14 15:53:16 -03:00
Changelog
lavd: Remove libndi_newtek
2019-03-20 10:42:10 +00:00
configure
lavu/opencl: replace va_ext.h with standard name
2019-03-22 09:33:28 +08:00
CONTRIBUTING.md
…
COPYING.GPLv2
…
COPYING.GPLv3
…
COPYING.LGPLv2.1
…
COPYING.LGPLv3
…
CREDITS
…
INSTALL.md
INSTALL.md: Fix Markdown formatting
2019-01-31 10:29:16 -09:00
LICENSE.md
…
MAINTAINERS
MAINTAINERS: remove myself as mailing list maintainer
2019-03-21 11:34:13 -08:00
Makefile
Merge commit '7e5bde93a1e7641e1622814dafac0be3f413d79b'
2019-03-10 19:31:13 -03:00
README.md
Remove the ffserver program
2018-01-06 18:31:37 +00:00
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.

Description
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