Pascal Massimino dcbb1ca54a add WebPBlendAlpha() function to blend colors against background ...

new option: -blend_alpha 0xrrggbb
also: don't force picture.use_argb value for lossless. Instead,
delay the YUVA<->ARGB conversion till WebPEncode() is called.
This make the blending more accurate when source is ARGB
and lossy compression is used (YUVA).
This has an effect on cropping/rescaling. E.g. for PNG, these
are now done in ARGB colorspace instead of YUV when lossy compression
is used.

Change-Id: I18571f1b1179881737a8dbd23ad0aa8cddae3c6b
(cherry picked from commit e7d9548c9bc94a7c8f2ce70ec81464abb4abf9d6)

2013-06-11 15:00:41 -07:00

..

alpha.c

make alpha unfilter work in-place

2013-03-15 01:36:38 +01:00

analysis.c

rebalance method tools (-m) for methods [0..4]

2013-02-27 02:19:20 -08:00

backward_references.c

Tune Lossless compression for lower qualities.

2013-03-12 14:17:28 -07:00

backward_references.h

backward_references: avoid signed integer overflow

2013-02-20 13:35:00 -08:00

config.c

1.5x-2x faster encoding for method 3 and up

2013-03-11 17:01:33 -07:00

cost.c

misc style fix

2013-03-29 15:49:05 -07:00

cost.h

fix bad saturation order in QuantizeBlock

2013-03-25 14:53:29 -07:00

filter.c

add -print_psnr and -print_ssim options to cwebp.

2012-01-20 07:37:29 -08:00

frame.c

don't consolidate proba stats too often

2013-03-13 13:50:08 +01:00

histogram.c

speed-up lossless (~3%) with ad-hoc histogram cost evaluation

2013-03-18 22:34:32 +01:00

histogram.h

speed-up lossless (~3%) with ad-hoc histogram cost evaluation

2013-03-18 22:34:32 +01:00

iterator.c

Fix floating point exception with cwebp -progress

2012-06-18 15:43:28 -07:00

layer.c

cosmetics: normalize copyright headers

2012-01-06 14:49:06 -08:00

Makefile.am

move token buffer to its own file (token.c)

2012-12-03 13:50:14 +01:00

picture.c

add WebPBlendAlpha() function to blend colors against background

2013-06-11 15:00:41 -07:00

quant.c

rebalance method tools (-m) for methods [0..4]

2013-02-27 02:19:20 -08:00

syntax.c

misc style fix

2013-03-29 15:49:05 -07:00

token.c

1.5x-2x faster encoding for method 3 and up

2013-03-11 17:01:33 -07:00

tree.c

Only recompute level_cost_[] when needed

2012-01-25 07:52:34 -08:00

vp8enci.h

fix bad saturation order in QuantizeBlock

2013-03-25 14:53:29 -07:00

vp8l.c

speed-up lossless (~3%) with ad-hoc histogram cost evaluation

2013-03-18 22:34:32 +01:00

vp8li.h

add stats for lossless

2012-07-24 16:17:13 -07:00

webpenc.c

add missing YUVA->ARGB automatic conversion in WebPEncode()

2013-03-29 15:33:14 -07:00