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make width/height coding match the spec

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* width/height in VP8X chunk is 24bit now
* Added some more constants #defines

Change-Id: I2f8ca7f965a247bccd341dd079ed2abf549c39d7
This commit is contained in:
Pascal Massimino
2012-06-28 00:20:28 -07:00
parent 637a314f97
commit e012dfd90f
7 changed files with 59 additions and 30 deletions
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6
src/mux/muxread.c
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@ -215,11 +215,13 @@ WebPMuxError WebPMuxGetFeatures(const WebPMux* const mux, uint32_t* flags) {
static uint8_t* EmitVP8XChunk(uint8_t* const dst, uint32_t width,
uint32_t height, uint32_t flags) {
const size_t vp8x_size = CHUNK_HEADER_SIZE + VP8X_CHUNK_SIZE;
assert(width >= 1 && height >= 1);
assert(width <= MAX_CANVAS_SIZE && height <= MAX_CANVAS_SIZE);
PutLE32(dst, mktag('V', 'P', '8', 'X'));
PutLE32(dst + TAG_SIZE, VP8X_CHUNK_SIZE);
PutLE32(dst + CHUNK_HEADER_SIZE, flags);
PutLE32(dst + CHUNK_HEADER_SIZE + 4, width);
PutLE32(dst + CHUNK_HEADER_SIZE + 8, height);
PutLE24(dst + CHUNK_HEADER_SIZE + 4, width - 1);
PutLE24(dst + CHUNK_HEADER_SIZE + 7, height - 1);
return dst + vp8x_size;
}