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Ronald S. Bultje 726501a34e vp9: add 32x32 idct AVX2 implementation.

About 1.8x speedup compared to AVX version for full IDCT. Other
sub-IDCT scenarios also see speedups. Full --bench output for
idct_32x32_add_{bpp}_${subidct}_${opt} (50k cycles):

nop: 16.5
vp9_inv_dct_dct_32x32_add_8_1_c: 2284.4
vp9_inv_dct_dct_32x32_add_8_1_sse2: 145.0
vp9_inv_dct_dct_32x32_add_8_1_ssse3: 137.4
vp9_inv_dct_dct_32x32_add_8_1_avx: 137.1
vp9_inv_dct_dct_32x32_add_8_1_avx2: 73.2
vp9_inv_dct_dct_32x32_add_8_2_c: 14680.8
vp9_inv_dct_dct_32x32_add_8_2_sse2: 2617.2
vp9_inv_dct_dct_32x32_add_8_2_ssse3: 982.9
vp9_inv_dct_dct_32x32_add_8_2_avx: 958.5
vp9_inv_dct_dct_32x32_add_8_2_avx2: 704.2
vp9_inv_dct_dct_32x32_add_8_4_c: 14443.1
vp9_inv_dct_dct_32x32_add_8_4_sse2: 2717.1
vp9_inv_dct_dct_32x32_add_8_4_ssse3: 965.7
vp9_inv_dct_dct_32x32_add_8_4_avx: 1000.7
vp9_inv_dct_dct_32x32_add_8_4_avx2: 717.1
vp9_inv_dct_dct_32x32_add_8_8_c: 14436.4
vp9_inv_dct_dct_32x32_add_8_8_sse2: 2671.8
vp9_inv_dct_dct_32x32_add_8_8_ssse3: 1038.5
vp9_inv_dct_dct_32x32_add_8_8_avx: 983.0
vp9_inv_dct_dct_32x32_add_8_8_avx2: 729.4
vp9_inv_dct_dct_32x32_add_8_16_c: 14614.7
vp9_inv_dct_dct_32x32_add_8_16_sse2: 2701.7
vp9_inv_dct_dct_32x32_add_8_16_ssse3: 1334.4
vp9_inv_dct_dct_32x32_add_8_16_avx: 1276.7
vp9_inv_dct_dct_32x32_add_8_16_avx2: 719.5
vp9_inv_dct_dct_32x32_add_8_32_c: 14363.6
vp9_inv_dct_dct_32x32_add_8_32_sse2: 2575.6
vp9_inv_dct_dct_32x32_add_8_32_ssse3: 2633.9
vp9_inv_dct_dct_32x32_add_8_32_avx: 2539.6
vp9_inv_dct_dct_32x32_add_8_32_avx2: 1395.0

2016-07-26 15:59:07 -04:00

compat

Merge commit '6bb99757b780144d9fa27cdce09d3621e1a0ed43'

2016-05-08 23:02:33 +01:00

doc

lavfi/curves: add plot option

2016-07-24 12:18:30 +02:00

libavcodec

vp9: add 32x32 idct AVX2 implementation.

2016-07-26 15:59:07 -04:00

libavdevice

lavd/libdc1394: distinguish between enumeration errors and no cameras found

2016-07-25 19:39:13 +02:00

libavfilter

lavfi/curves: fix meaningless const int returned value

2016-07-26 21:22:27 +02:00

libavformat

librtmp: Avoid an infiniloop setting connection arguments

2016-07-26 12:05:29 -07:00

libavresample

Merge commit '535a742c2695a9e0c586b50d7fa76e318232ff24'

2016-06-27 17:56:47 +02:00

libavutil

avutil/frame: access avframe fields directly in get_frame_defaults()

2016-07-25 17:37:18 -03:00

libpostproc

Merge commit '535a742c2695a9e0c586b50d7fa76e318232ff24'

2016-06-27 17:56:47 +02:00

libswresample

Merge commit '535a742c2695a9e0c586b50d7fa76e318232ff24'

2016-06-27 17:56:47 +02:00

libswscale

Revert "PPC64: Add versions of functions in libswscale/input.c optimized for POWER8 VSX SIMD."

2016-07-11 10:15:05 -04:00

presets

…

tests

tests/fate: add dnxhr encoding tests

2016-07-24 12:31:07 +02:00

tools

tools/patcheck: add a couple more common typos

2016-07-17 18:38:14 -03:00

.gitattributes

Treat all '*.pnm' files as non-text file

2014-11-28 17:52:43 -05:00

.gitignore

Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1'

2016-06-26 15:43:05 +02:00

.travis.yml

Merge commit 'eda183287489b2c705843aa373a19c4e46fb2fec'

2015-11-22 17:12:24 +00:00

arch.mak

mips: rename mipsdspr1 to mipsdsp

2015-12-04 02:35:42 +01:00

Changelog

lavfi/selectivecolor: add 16-bit support

2016-07-24 15:29:37 +02:00

cmdutils_common_opts.h

opts: add list device sources/sinks options

2014-10-25 20:20:31 +02:00

cmdutils_opencl.c

all: use FFDIFFSIGN to resolve possible undefined behavior in comparators

2015-11-03 16:28:30 -05:00

cmdutils.c

avconv: switch to the new BSF API

2016-03-20 08:15:01 +01:00

cmdutils.h

fate/source: Do not use GNU extensions in sed

2016-02-13 07:59:00 -08:00

common.mak

Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1'

2016-06-27 19:39:46 +02:00

configure

avformat: add an Ogg Video muxer

2016-07-20 22:32:43 -03:00

COPYING.GPLv2

…

COPYING.GPLv3

…

COPYING.LGPLv2.1

…

COPYING.LGPLv3

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CREDITS

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ffmpeg_cuvid.c

ffmpeg: Add cuvid hwaccel support

2016-06-10 16:31:23 +02:00

ffmpeg_dxva2.c

Merge commit '18c506e9e6e8df8b1d496d093077b8240ea68c28'

2016-06-26 15:34:01 +02:00

ffmpeg_filter.c

ffmpeg_filter: Fix AVBufferSrcParameters leak

2016-05-19 00:10:27 +02:00

ffmpeg_opt.c

ffmpeg_opt: Delete duplicate “hwaccel_output_format” option.

2016-07-20 12:07:38 +02:00

ffmpeg_qsv.c

Merge commit 'fb472e1a11a4e0caed2c3c91da01ea8e35d9e3f8'

2015-10-22 16:18:02 +02:00

ffmpeg_vaapi.c

Merge commit '9f7590f4e497c12693247d7f935a20d7773a64dd'

2016-06-26 15:36:27 +02:00

ffmpeg_vdpau.c

Merge commit 'f72db3f2f3a8c83a4f5dede8fa03434b2bf676c6'

2016-06-26 15:29:39 +02:00

ffmpeg_videotoolbox.c

ffmpeg/videotoolbox: protect UTGetOSTypeFromString on both VDA and VT

2015-10-15 10:22:31 +02:00

ffmpeg.c

ffmpeg.c: copy video profile when using stream_copy

2016-07-23 03:52:38 +02:00

ffmpeg.h

ffmpeg: Add cuvid hwaccel support

2016-06-10 16:31:23 +02:00

ffplay.c

ffplay: Fix usage of private lavfi API

2016-06-29 12:53:01 +02:00

ffprobe.c

ffprobe: add missing PROGRAM_STREAM_TAGS case

2016-07-26 19:22:47 +02:00

ffserver_config.c

ffserver: NoVideo and NoAudio flags weren't cleared between streams.

2016-02-21 22:29:15 +01:00

ffserver_config.h

ffserver: Use singlejpeg muxer for jpeg

2015-06-08 03:36:22 +02:00

ffserver.c

ffserver: fixed deallocation bug in build_feed_streams

2016-05-27 00:22:06 +02:00

INSTALL.md

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library.mak

Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1'

2016-06-27 19:39:46 +02:00

LICENSE.md

avcodec: remove libutvideo wrapper support

2016-06-23 13:04:11 +02:00

MAINTAINERS

MAINTAINERS: add myself to the project server

2016-07-23 11:13:06 +02:00

Makefile

Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1'

2016-06-26 15:43:05 +02:00

README.md

README: replace http with https

2015-10-06 13:27:29 +02:00

RELEASE

RELEASE: Update to 3.0.git

2016-02-15 10:20:33 -08:00

version.sh

version.sh: Fix spurious rebuilds.

2016-03-10 09:53:10 +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.
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. Few developers follow pull requests so they will likely be ignored.

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Makefile 1.3%

C++ 0.2%

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Other 0.1%