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Decode: return more meaningful error for animation

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VP8_STATUS_NOT_ENOUGH_DATA -> VP8_STATUS_UNSUPPORTED_FEATURE

Change-Id: If5ee9fd2c99fc5502996d3c786848fd9cc118fe7
This commit is contained in:
James Zern 2013-03-20 12:59:29 -07:00
parent ad452735c3
commit 302efcdb41
1 changed files with 12 additions and 3 deletions
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15
src/dec/webp.c
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@ -372,10 +372,19 @@ static VP8StatusCode ParseHeadersInternal(const uint8_t* data,
}
VP8StatusCode WebPParseHeaders(WebPHeaderStructure* const headers) {
VP8StatusCode status;
int has_animation = 0;
assert(headers != NULL);
// fill out headers, ignore width/height/has_alpha/has_animation.
return ParseHeadersInternal(headers->data, headers->data_size,
NULL, NULL, NULL, NULL, headers);
// fill out headers, ignore width/height/has_alpha.
status = ParseHeadersInternal(headers->data, headers->data_size,
NULL, NULL, NULL, &has_animation, headers);
if (status == VP8_STATUS_OK || status == VP8_STATUS_NOT_ENOUGH_DATA) {
// TODO(jzern): full support of animation frames will require API additions.
if (has_animation) {
status = VP8_STATUS_UNSUPPORTED_FEATURE;
}
}
return status;
}
//------------------------------------------------------------------------------