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Merge "demux: add {Next,Prev}Chunk"

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This commit is contained in:
James Zern
2012-06-21 23:43:03 -07:00
committed by Gerrit Code Review
parent e8a0a821d2 4708393c3b
commit da47b5bda7
2 changed files with 17 additions and 6 deletions
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16
src/mux/demux.c
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@ -853,10 +853,20 @@ int WebPDemuxGetChunk(const WebPDemuxer* const dmux,
return SetChunk(fourcc, chunk_num, iter);
}
int WebPDemuxSetChunk(WebPChunkIterator* const iter, int chunk) {
int WebPDemuxNextChunk(WebPChunkIterator* const iter) {
if (iter != NULL) {
const uint8_t* const header = iter->chunk_.bytes_ - CHUNK_HEADER_SIZE;
return SetChunk((const char*)header, chunk, iter);
const char* const fourcc =
(const char*)iter->chunk_.bytes_ - CHUNK_HEADER_SIZE;
return SetChunk(fourcc, iter->chunk_num_ + 1, iter);
}
return 0;
}
int WebPDemuxPrevChunk(WebPChunkIterator* const iter) {
if (iter != NULL && iter->chunk_num_ > 1) {
const char* const fourcc =
(const char*)iter->chunk_.bytes_ - CHUNK_HEADER_SIZE;
return SetChunk(fourcc, iter->chunk_num_ - 1, iter);
}
return 0;
}