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Martin Storsjö 758302e4bc arm: vp9itxfm: Optimize 16x16 and 32x32 idct dc by unrolling 
This work is sponsored by, and copyright, Google.

Before:                            Cortex A7      A8      A9     A53
vp9_inv_dct_dct_16x16_sub1_add_neon:   273.0   189.5   211.7   235.8
vp9_inv_dct_dct_32x32_sub1_add_neon:   752.0   459.2   862.2   553.9
After:
vp9_inv_dct_dct_16x16_sub1_add_neon:   226.5   145.0   225.1   171.8
vp9_inv_dct_dct_32x32_sub1_add_neon:   721.2   415.7   727.6   475.0

This is cherrypicked from libav commit
a76bf8cf12.

Signed-off-by: Martin Storsjö <martin@martin.st>
2017-03-11 13:14:48 +02:00
compat
doc libavfilter/avf_showwaves: make sqrt and cbrt scale option values available to showwavespic by name 2017-03-11 11:55:57 +01:00
libavcodec arm: vp9itxfm: Optimize 16x16 and 32x32 idct dc by unrolling 2017-03-11 13:14:48 +02:00
libavdevice
libavfilter libavfilter/avf_showwaves: make sqrt and cbrt scale option values available to showwavespic by name 2017-03-11 11:55:57 +01:00
libavformat avformat/matroskaenc: add support for Spherical Video elements 2017-03-09 13:57:03 -03:00
libavresample
libavutil
libpostproc
libswresample
libswscale
presets
tests concatdec: pass AVFormatContext flags to sub demuxer 2017-03-09 16:24:00 +01:00
tools
.gitattributes
.gitignore
.travis.yml
arch.mak
Changelog
cmdutils_common_opts.h
cmdutils_opencl.c
cmdutils.c
cmdutils.h
common.mak
configure
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
ffmpeg_cuvid.c
ffmpeg_dxva2.c
ffmpeg_filter.c
ffmpeg_opt.c
ffmpeg_qsv.c
ffmpeg_vaapi.c
ffmpeg_vdpau.c
ffmpeg_videotoolbox.c
ffmpeg.c
ffmpeg.h
ffplay.c
ffprobe.c ffprobe: add AVCodecContext help message into ffprobe 2017-03-11 11:12:23 +08:00
ffserver_config.c
ffserver_config.h
ffserver.c
INSTALL.md
library.mak
LICENSE.md
MAINTAINERS
Makefile
README.md
RELEASE
version.sh

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.
  • ffserver is a multimedia streaming server for live broadcasts.
  • 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.