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Make transform bits a function of encode method (-m).

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Change-Id: Idc392f7cba6e160ea068eacd7f82be4ebc971eaa
This commit is contained in:
Vikas Arora 2012-04-25 02:54:06 +00:00 committed by James Zern
parent 72920caa61
commit 83332b3c16
1 changed files with 5 additions and 6 deletions
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11
src/enc/vp8l.c
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@ -1002,7 +1002,8 @@ static WebPEncodingError WriteImage(VP8LEncoder* const enc,
static VP8LEncoder* InitVP8LEncoder(const WebPConfig* const config,
WebPPicture* const picture) {
int sampling_bits = 9 - (((int)config->quality + 8) >> 4);
const int method = config->method;
const int histo_bits = 9 - (int)(config->quality / 16.f + .5f);
VP8LEncoder* enc = (VP8LEncoder*)malloc(sizeof(*enc));
if (enc == NULL) {
WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY);
@ -1014,11 +1015,9 @@ static VP8LEncoder* InitVP8LEncoder(const WebPConfig* const config,
enc->pic_ = picture;
enc->use_lz77_ = 1;
if (sampling_bits > 8) sampling_bits = 8;
if (sampling_bits < 3) sampling_bits = 3;
enc->histo_bits_ = sampling_bits;
enc->transform_bits_ = sampling_bits;
enc->histo_bits_ =
(histo_bits < 3) ? 3 : (histo_bits > 8) ? 8 : histo_bits;
enc->transform_bits_ = (method < 4) ? 5 : (method > 4) ? 3 : 4;
return enc;
}