Vikas Arora 72831f6b28 Speedup AnalyzeAndInit for low effort compression. ...

AnalyzeSubtractGreen constitutes about 8-10% of the comression CPU cycles.
Statistically, subtract-green is proved to be useful for most of the
non-palette compression. So instead of evaluating the entropy (by calling
AnalyzeSubtractGreen) apply subtract-green transform for the low-effort
compression.

This changes speeds up the compression at m=0 by 8-10% (with very slight loss
of 0.07% in the compression density).

Change-Id: I9797dc39437ae089716acb14631bbc77d367acf4

2015-01-30 10:37:31 -08:00

..

alpha.c

Temporarily disable encoding of alpha plane with color cache.

2015-01-28 15:28:02 -08:00

analysis.c

simplify the Histogram struct, to only store max_value and last_nz

2014-12-10 10:44:57 +01:00

backward_references.c

Simplify backward refs calculation for low-effort.

2015-01-27 09:36:14 -08:00

backward_references.h

Simplify backward refs calculation for low-effort.

2015-01-27 09:36:14 -08:00

config.c

Add smart RGB->YUV conversion option -pre 4

2014-08-15 10:55:09 -07:00

cost.c

remove the special casing for res->first in VP8SetResidualCoeffs

2014-06-08 06:40:22 +02:00

cost.h

cosmetics: remove some extraneous 'extern's

2014-08-05 22:14:24 -07:00

filter.c

use decoder's DSP functions for autofilter

2014-05-20 14:55:05 -07:00

frame.c

cosmetics

2014-08-06 12:10:59 -07:00

histogram.c

Speedup VP8LGetHistoImageSymbols for low effort (m=0) mode.

2015-01-08 00:29:57 -08:00

histogram.h

Speedup VP8LGetHistoImageSymbols for low effort (m=0) mode.

2015-01-08 00:29:57 -08:00

iterator.c

drop: ifdef __cplusplus checks from C files

2013-12-13 11:42:13 -08:00

Makefile.am

add -near_lossless [0..100] experimental option

2014-08-05 19:17:10 +02:00

near_lossless.c

Enable Near-lossless feature.

2015-01-29 16:10:20 -08:00

picture_csp.c

simplify smart RGB->YUV conversion code

2015-01-23 14:42:32 +01:00

picture_psnr.c

split monolithic picture.c into picture_{tools,psnr,rescale}.c

2014-07-12 09:13:33 -07:00

picture_rescale.c

extract colorspace code from picture.c into picture_csp.c

2014-07-16 16:37:26 -07:00

picture_tools.c

extract colorspace code from picture.c into picture_csp.c

2014-07-16 16:37:26 -07:00

picture.c

move VP8EncDspARGBInit() call closer to where it's needed

2014-12-23 16:04:14 +01:00

quant.c

PickBestUV: fix VP8Copy16x8 invocation

2014-12-04 23:12:30 -08:00

syntax.c

Unify the API between VP8BitWriter and VP8LBitWriter

2014-10-23 15:35:16 +02:00

token.c

make error-code reporting consistent upon malloc failure

2014-06-13 08:45:12 +02:00

tree.c

Unify the API between VP8BitWriter and VP8LBitWriter

2014-10-23 15:35:16 +02:00

vp8enci.h

simplify the Histogram struct, to only store max_value and last_nz

2014-12-10 10:44:57 +01:00

vp8l.c

Speedup AnalyzeAndInit for low effort compression.

2015-01-30 10:37:31 -08:00

vp8li.h

Temporarily disable encoding of alpha plane with color cache.

2015-01-28 15:28:02 -08:00

webpenc.c

WebPEncode: Support encoding same pic twice (even if modified)

2014-11-06 13:52:48 -08:00