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Christophe Gisquet e5c9de2ab7 rv40: x86 SIMD for biweight 
Provide MMX, SSE2 and SSSE3 versions, with a fast-path when the weights are
multiples of 512 (which is often the case when the values round up nicely).

*_TIMER report for the 16x16 and 8x8 cases:
C:
9015 decicycles in 16, 524257 runs, 31 skips
2656 decicycles in 8, 524271 runs, 17 skips
MMX:
4156 decicycles in 16, 262090 runs, 54 skips
1206 decicycles in 8, 262131 runs, 13 skips
MMX on fast-path:
2760 decicycles in 16, 524222 runs, 66 skips
995 decicycles in 8, 524252 runs, 36 skips
SSE2:
2163 decicycles in 16, 262131 runs, 13 skips
832 decicycles in 8, 262137 runs, 7 skips
SSE2 with fast path:
1783 decicycles in 16, 524276 runs, 12 skips
711 decicycles in 8, 524283 runs, 5 skips
SSSE3:
2117 decicycles in 16, 262136 runs, 8 skips
814 decicycles in 8, 262143 runs, 1 skips
SSSE3 with fast path:
1315 decicycles in 16, 524285 runs, 3 skips
578 decicycles in 8, 524286 runs, 2 skips

This means around a 4% speedup for some sequences.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-01-30 23:58:25 +01:00
doc avconv: deprecate the -deinterlace option 2012-01-30 21:43:08 +01:00
libavcodec rv40: x86 SIMD for biweight 2012-01-30 23:58:25 +01:00
libavdevice cosmetics: Remove extra newlines at EOF 2012-01-27 17:19:09 -08:00
libavfilter cosmetics: Remove extra newlines at EOF 2012-01-27 17:19:09 -08:00
libavformat movdec: Ignore sample_degradation_priority bits when checking first_sample_flags 2012-01-31 00:13:31 +02:00
libavutil avutil: make intfloat api public 2012-01-30 07:41:31 +01:00
libpostproc Place some START_TIMER invocations in separate blocks. 2012-01-04 15:05:49 +01:00
libswscale swscale: more generic check for planar destination formats with alpha 2012-01-30 07:37:13 -08:00
presets presets: spelling error in libvpx 1080p50_60 2011-10-22 00:28:56 +02:00
tests build: Use order-only prerequisites for creating FATE reference file dirs. 2012-01-30 13:00:35 +01:00
tools ismindex: Fix build on mingw 2012-01-26 00:04:28 +02:00
.gitignore Ignore generated aviocat and ismindex tools. 2012-01-25 15:04:35 +01:00
avconv.c avconv: deprecate the -deinterlace option 2012-01-30 21:43:08 +01:00
avplay.c avplay: use the correct array size for stride. 2012-01-28 19:45:45 +01:00
avprobe.c avprobe, cmdutils: K&R formatting cosmetics 2012-01-18 21:07:25 +01:00
avserver.c avserver: fix build after the next bump. 2012-01-22 07:50:41 +01:00
Changelog movenc: Add a separate ismv/isma (smooth streaming) muxer 2012-01-25 12:15:41 +02:00
cmdutils_common_opts.h avtools: add -v as alias for -loglevel 2011-10-09 16:53:06 +01:00
cmdutils.c cmdutils: fix options starting with 'no'. 2012-01-27 10:27:00 +01:00
cmdutils.h Drop unnecessary prefix from *sink* variable and struct names. 2012-01-25 12:28:36 +01:00
common.mak build: remove unnecessary FFLDFLAGS variable 2011-07-11 11:39:04 +01:00
configure config.asm: change %ifdef directives to %if directives. 2012-01-27 10:19:57 +08:00
COPYING.GPLv2 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 2009-06-05 09:51:31 +00:00
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 2009-06-05 09:51:31 +00:00
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
CREDITS partially rename FFmpeg to Libav 2011-03-16 21:54:39 +01:00
Doxyfile Fix a bunch of platform name and other typos. 2012-01-11 13:48:30 +01:00
INSTALL doc: clarify configure features 2011-04-07 02:54:12 +02:00
library.mak build: link test programs with static libraries 2011-12-17 23:21:08 +00:00
LICENSE cosmetics: fix dashed line length after 070c5d0 2011-03-28 09:53:40 +02:00
Makefile build: Automatically include architecture-specific library Makefile snippets. 2012-01-25 15:04:28 +01:00
README cosmetics: fix dashed line length after 070c5d0 2011-03-28 09:53:40 +02:00
RELEASE Prepare for 0.8 Release 2012-01-21 14:54:31 +01:00
version.sh Drop git- prefix from version labels 2011-06-19 19:41:23 +01:00

README 

Libav README
------------

1) Documentation
----------------

* Read the documentation in the doc/ directory.

2) Licensing
------------

* See the LICENSE file.