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Martin Storsjö f8fcee0daf arm: vp9itxfm: Make the larger core transforms standalone functions

This work is sponsored by, and copyright, Google.

This reduces the code size of libavcodec/arm/vp9itxfm_neon.o from
15324 to 12388 bytes.

This gives a small slowdown of a couple tens of cycles, up to around
150 cycles for the full case of the largest transform, but makes
it more feasible to add more optimized versions of these transforms.

Before:                              Cortex A7       A8       A9      A53
vp9_inv_dct_dct_16x16_sub4_add_neon:    2063.4   1516.0   1719.5   1245.1
vp9_inv_dct_dct_16x16_sub16_add_neon:   3279.3   2454.5   2525.2   1982.3
vp9_inv_dct_dct_32x32_sub4_add_neon:   10750.0   7955.4   8525.6   6754.2
vp9_inv_dct_dct_32x32_sub32_add_neon:  18574.0  17108.4  14216.7  12010.2

After:
vp9_inv_dct_dct_16x16_sub4_add_neon:    2060.8   1608.5   1735.7   1262.0
vp9_inv_dct_dct_16x16_sub16_add_neon:   3211.2   2443.5   2546.1   1999.5
vp9_inv_dct_dct_32x32_sub4_add_neon:   10682.0   8043.8   8581.3   6810.1
vp9_inv_dct_dct_32x32_sub32_add_neon:  18522.4  17277.4  14286.7  12087.9

This is cherrypicked from libav commit
0331c3f5e8cb6e6b53fab7893e91d1be1bfa979c.

Signed-off-by: Martin Storsjö <martin@martin.st>

2017-03-11 13:14:20 +02:00

compat

compat/cuda: fix ulong size on cygwin

2017-03-01 12:08:34 +01:00

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: Make the larger core transforms standalone functions

2017-03-11 13:14:20 +02:00

libavdevice

avdevice/alldevices: make avdevice_register_all thread safe

2017-03-07 20:34:44 +07:00

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

Bump minor versions after 3.2 branchpoint to seperate release

2016-10-26 20:52:42 +02:00

libavutil

avutil/tests/lfg: Remove debugging start/stop timer

2017-03-08 14:32:00 +01:00

libpostproc

Bump minor versions after 3.2 branchpoint to seperate release

2016-10-26 20:52:42 +02:00

libswresample

swresample/resample: do not allow odd filter_length

2017-03-09 13:09:14 +07:00

libswscale

lsws/slice: Move a misplaced const.

2017-03-08 00:33:21 +01:00

presets

…

tests

concatdec: pass AVFormatContext flags to sub demuxer

2017-03-09 16:24:00 +01:00

tools

tools/target_dec_fuzzer: Fix misaligned read

2017-02-24 14:12:13 +01:00

.gitattributes

fate: add SCC test

2017-01-27 17:06:42 +01:00

.gitignore

Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1'

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

.travis.yml

…

arch.mak

…

Changelog

avcodec: add ClearVideo decoder

2017-03-02 11:39:54 +01:00

cmdutils_common_opts.h

cmdutils: add show_demuxers and show_muxers

2016-11-08 01:56:31 +01:00

cmdutils_opencl.c

cmdutils_opencl: fix resource_leak cid 1396852

2017-01-13 07:54:49 +08:00

cmdutils.c

cmdutils: remove duplicate windows.h include

2016-11-16 15:06:16 +01:00

cmdutils.h

cmdutils: add show_demuxers and show_muxers

2016-11-08 01:56:31 +01:00

common.mak

Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1'

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

configure

Revert "lavu/atomic: add support for the new memory model aware gcc built-ins"

2017-03-08 00:48:37 -03:00

CONTRIBUTING.md

Add CONTRIBUTING.md

2016-09-18 10:02:13 +01:00

COPYING.GPLv2

…

COPYING.GPLv3

…

COPYING.LGPLv2.1

…

COPYING.LGPLv3

…

CREDITS

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ffmpeg_cuvid.c

ffmpeg_cuvid: adapt for recent filter graph initialization changes

2017-03-03 08:45:43 +01:00

ffmpeg_dxva2.c

Merge commit '18c506e9e6e8df8b1d496d093077b8240ea68c28'

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

ffmpeg_filter.c

ffmpeg: properly cleanup filter graph on init failure

2017-03-03 08:45:43 +01:00

ffmpeg_opt.c

ffmpeg: init filtergraphs only after we have a frame on each input

2017-03-03 08:45:43 +01:00

ffmpeg_qsv.c

ffmpeg: init filtergraphs only after we have a frame on each input

2017-03-03 08:45:43 +01:00

ffmpeg_vaapi.c

ffmpeg_vaapi: Always set hwaccel_ctx, so it gets properly cleaned up on error

2017-02-05 15:13:15 +00:00

ffmpeg_vdpau.c

Merge commit 'f72db3f2f3a8c83a4f5dede8fa03434b2bf676c6'

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

ffmpeg_videotoolbox.c

…

ffmpeg.c

ffmpeg: remove unnecessary hack for decoders which refuse to drain

2017-03-06 11:08:03 +01:00

ffmpeg.h

ffmpeg: delay processing of subtitles before filters are initialized

2017-03-03 08:45:43 +01:00

ffplay.c

ffplay: change keyboard volume control to logarithmic

2017-02-08 22:36:42 +01:00

ffprobe.c

ffprobe: add AVCodecContext help message into ffprobe

2017-03-11 11:12:23 +08:00

ffserver_config.c

ffserver_config: Check for failure to allocate FFServerIPAddressACL

2016-12-22 19:23:08 +01:00

ffserver_config.h

ffsrever: Make the status page bitexact if any stream is bitexact

2016-11-29 19:26:26 +01:00

ffserver.c

ffserver: local OOB write with custom program name

2017-01-08 03:50:56 +01:00

INSTALL.md

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library.mak

Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1'

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

LICENSE.md

lavfi/f_ebur128: relicense to LGPL

2016-11-27 20:46:20 +01:00

MAINTAINERS

MAINTAINERS: Add Rodger Combs to ffmpeg-security

2017-02-28 01:13:52 +01:00

Makefile

Makefile: Clean compat/atomics/pthread subdirectory.

2017-03-01 13:43:03 +01:00

README.md

Add CONTRIBUTING.md

2016-09-18 10:02:13 +01:00

RELEASE

RELEASE: Update for past 3.2 branch

2016-10-26 20:52:43 +02:00

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 and will be ignored.

Languages

C 90.3%

Assembly 7.8%

Makefile 1.3%

C++ 0.2%

Objective-C 0.2%

Other 0.1%