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remove absolute_delta_ field and syntax code

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we'll always encode using absolute value, not relative ones.
    Both methods use the same number of bits, so we'll go for the
    simpler and most robust one.
    + add some extra checks about pic->u/v being NULL.

Change-Id: I98ea01a1a6b133ab3c816c0fbc50e18269bd2098
This commit is contained in:
Pascal Massimino
2011-02-27 10:22:54 -08:00
parent 0744e8420e
commit b65a3e101e
3 changed files with 7 additions and 20 deletions
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5
src/enc/webpenc.c
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@ -55,7 +55,6 @@ static void ResetSegmentHeader(VP8Encoder* const enc) {
VP8SegmentHeader* const hdr = &enc->segment_hdr_;
hdr->num_segments_ = enc->config_->segments;
hdr->update_map_ = (hdr->num_segments_ > 1);
hdr->absolute_delta_ = 1;
hdr->size_ = 0;
}
@ -285,7 +284,9 @@ int WebPEncode(const WebPConfig* const config, WebPPicture* const pic) {
return 0; // bad params
if (!WebPValidateConfig(config))
return 0; // invalid config.
if (pic->width <= 0 || pic->height <= 0 || pic->y == NULL)
if (pic->width <= 0 || pic->height <= 0)
return 0; // invalid parameters
if (pic->y == NULL || pic->u == NULL || pic->v == NULL)
return 0; // invalid parameters
if (pic->width >= MAX_DIMENSION || pic->height >= MAX_DIMENSION)
return 0; // image is too big