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Speedup WebP lossless compression for low effort (m=0) mode with following:

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- Disable Cross-Color transform.
- Evaluate predictors #11 (paeth), #12 and #13 only.

Change-Id: I857264c85c61c3957d4fb45ae32d261d947c8bed
This commit is contained in:
Pascal Massimino
2014-12-17 11:52:11 +01:00
parent 9275d91c79
commit 31a9cf6417
3 changed files with 16 additions and 10 deletions
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2
src/dsp/lossless.h
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@ -98,7 +98,7 @@ void VP8LColorIndexInverseTransformAlpha(
const struct VP8LTransform* const transform, int y_start, int y_end,
const uint8_t* src, uint8_t* dst);
void VP8LResidualImage(int width, int height, int bits,
void VP8LResidualImage(int width, int height, int bits, int low_effort,
uint32_t* const argb, uint32_t* const argb_scratch,
uint32_t* const image);