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Common APIs for chunks metadata and color profile.

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Change-Id: Ie105ce913c0b56e34cc26fd7ec397103354f268a
This commit is contained in:
Urvang Joshi
2012-08-23 15:28:20 +05:30
committed by Gerrit Code Review
parent 2a3117a1e6
commit 1c04a0d438
7 changed files with 95 additions and 118 deletions
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24
src/mux/muxread.c
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@ -289,15 +289,21 @@ WebPMuxError WebPMuxGetImage(const WebPMux* mux, WebPData* bitstream) {
return SynthesizeBitstream(wpi, bitstream);
}
WebPMuxError WebPMuxGetMetadata(const WebPMux* mux, WebPData* metadata) {
if (mux == NULL || metadata == NULL) return WEBP_MUX_INVALID_ARGUMENT;
return MuxGet(mux, IDX_META, 1, metadata);
}
WebPMuxError WebPMuxGetColorProfile(const WebPMux* mux,
WebPData* color_profile) {
if (mux == NULL || color_profile == NULL) return WEBP_MUX_INVALID_ARGUMENT;
return MuxGet(mux, IDX_ICCP, 1, color_profile);
WebPMuxError WebPMuxGetChunk(const WebPMux* mux, const char fourcc[4],
WebPData* chunk_data) {
const CHUNK_INDEX idx = ChunkGetIndexFromFourCC(fourcc);
if (mux == NULL || chunk_data == NULL || IsWPI(kChunks[idx].id)) {
return WEBP_MUX_INVALID_ARGUMENT;
}
if (idx != IDX_UNKNOWN) { // A known chunk type.
return MuxGet(mux, idx, 1, chunk_data);
} else { // An unknown chunk type.
const WebPChunk* const chunk =
ChunkSearchList(mux->unknown_, 1, ChunkGetTagFromFourCC(fourcc));
if (chunk == NULL) return WEBP_MUX_NOT_FOUND;
*chunk_data = chunk->data_;
return WEBP_MUX_OK;
}
}
WebPMuxError WebPMuxGetLoopCount(const WebPMux* mux, int* loop_count) {