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libwebp interface changes for lossless encoding.

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Change-Id: I703a1a18347acf78378cb23fddc6e5ca6dc6a0bb
This commit is contained in:
Vikas Arora
2012-03-28 11:07:42 +00:00
committed by James Zern
parent c04eb7be9d
commit 227110c4c3
8 changed files with 648 additions and 158 deletions
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3
src/enc/config.c
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@ -44,6 +44,7 @@ int WebPConfigInitInternal(WebPConfig* const config,
config->alpha_compression = 1;
config->alpha_filtering = 1;
config->alpha_quality = 100;
config->lossless = 0;
// TODO(skal): tune.
switch (preset) {
@ -116,6 +117,8 @@ int WebPValidateConfig(const WebPConfig* const config) {
return 0;
if (config->alpha_quality < 0 || config->alpha_quality > 100)
return 0;
if (config->lossless < 0 || config->lossless > 1)
return 0;
return 1;
}