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Mux: support parsing unknown chunks within a frame/fragment.

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Change-Id: I9b4dc36c5ccc4b46f60cd64c1ee21008e20c8b95
This commit is contained in:
Urvang Joshi
2013-07-22 16:40:24 -07:00
parent 8ba1bf61a0
commit 52508a1fe4
4 changed files with 36 additions and 22 deletions
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18
src/mux/muxinternal.c
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@ -187,6 +187,12 @@ WebPChunk* ChunkDelete(WebPChunk* const chunk) {
return next;
}
void ChunkListDelete(WebPChunk** const chunk_list) {
while (*chunk_list != NULL) {
*chunk_list = ChunkDelete(*chunk_list);
}
}
//------------------------------------------------------------------------------
// Chunk serialization methods.
@ -211,6 +217,15 @@ uint8_t* ChunkListEmit(const WebPChunk* chunk_list, uint8_t* dst) {
return dst;
}
size_t ChunkListDiskSize(const WebPChunk* chunk_list) {
size_t size = 0;
while (chunk_list != NULL) {
size += ChunkDiskSize(chunk_list);
chunk_list = chunk_list->next_;
}
return size;
}
//------------------------------------------------------------------------------
// Life of a MuxImage object.
@ -225,6 +240,7 @@ WebPMuxImage* MuxImageRelease(WebPMuxImage* const wpi) {
ChunkDelete(wpi->header_);
ChunkDelete(wpi->alpha_);
ChunkDelete(wpi->img_);
ChunkListDelete(&wpi->unknown_);
next = wpi->next_;
MuxImageInit(wpi);
@ -356,6 +372,7 @@ size_t MuxImageDiskSize(const WebPMuxImage* const wpi) {
if (wpi->header_ != NULL) size += ChunkDiskSize(wpi->header_);
if (wpi->alpha_ != NULL) size += ChunkDiskSize(wpi->alpha_);
if (wpi->img_ != NULL) size += ChunkDiskSize(wpi->img_);
if (wpi->unknown_ != NULL) size += ChunkListDiskSize(wpi->unknown_);
return size;
}
@ -387,6 +404,7 @@ uint8_t* MuxImageEmit(const WebPMuxImage* const wpi, uint8_t* dst) {
}
if (wpi->alpha_ != NULL) dst = ChunkEmit(wpi->alpha_, dst);
if (wpi->img_ != NULL) dst = ChunkEmit(wpi->img_, dst);
if (wpi->unknown_ != NULL) dst = ChunkListEmit(wpi->unknown_, dst);
return dst;
}