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Incremental support for some of the mux APIs.

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This CL adds incremental support for WebPMuxCreate() and
WebPMuxGetFeatures()

Change-Id: I312122f5e817d58366e18ae238cb9e2a493811fb
This commit is contained in:
Urvang Joshi
2012-01-13 14:46:30 +05:30
parent 2e74ec8b5f
commit 8d6490dae6
6 changed files with 148 additions and 70 deletions
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10
src/mux/muxi.h
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@ -59,6 +59,7 @@ struct WebPMuxImage {
// Main mux object. Stores data chunks.
struct WebPMux {
WebPMuxState state_;
WebPMuxImage* images_;
WebPChunk* iccp_;
WebPChunk* meta_;
@ -121,6 +122,10 @@ static WEBP_INLINE void PutLE32(uint8_t* const data, uint32_t val) {
PutLE16(data + 2, val >> 16);
}
static WEBP_INLINE uint32_t SizeWithPadding(uint32_t chunk_size) {
return CHUNK_HEADER_SIZE + ((chunk_size + 1) & ~1U);
}
//------------------------------------------------------------------------------
// Chunk object management.
@ -154,7 +159,7 @@ WebPChunk* ChunkDelete(WebPChunk* const chunk);
// Size of a chunk including header and padding.
static WEBP_INLINE uint32_t ChunkDiskSize(const WebPChunk* chunk) {
assert(chunk->payload_size_ < MAX_CHUNK_PAYLOAD);
return CHUNK_HEADER_SIZE + ((chunk->payload_size_ + 1) & ~1U);
return SizeWithPadding(chunk->payload_size_);
}
// Total size of a list of chunks.
@ -169,6 +174,9 @@ uint8_t* ChunkListEmit(const WebPChunk* chunk_list, uint8_t* dst);
// Initialize.
void MuxImageInit(WebPMuxImage* const wpi);
// Delete image 'wpi'.
WebPMuxImage* MuxImageDelete(WebPMuxImage* const wpi);
// Delete all images in 'wpi_list'.
void MuxImageDeleteAll(WebPMuxImage** const wpi_list);