libwebp

mirror of https://github.com/webmproject/libwebp.git synced 2025-02-13 07:22:52 +01:00

History

Pascal Massimino 3c8eb9a806 fix bad saturation order in QuantizeBlock

Saturation was done on input coeff, not quantized one.

This saturation is not absolutely needed: output of FTransformWHT
is in range [-16320, 16321]. At quality 100, max quantization steps is 8,
so the maximal range used by QuantizeBlock() is [-2040, 2040].
But there's some extra bias (mtx->bias_[] and mtx->sharpen_[]) so
it's better to leave this saturation check for now.

addresses issue #145

Change-Id: I4b14f71cdc80c46f9eaadb2a4e8e03d396879d28

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

dec

Decode: return more meaningful error for animation

2013-03-20 13:59:22 -07:00

demux

Merge "demux cosmetics: comments/rename internal function" into 0.3.0

2013-03-19 17:09:07 -07:00

dsp

fix bad saturation order in QuantizeBlock

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

enc

fix bad saturation order in QuantizeBlock