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demux: remove WebPDemuxSelectFragment

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this never had any affect, fragments were an abandoned experiment

Change-Id: Ifef15486a04cdb58f89f7faf56c31fd0a06e44ab
This commit is contained in:
James Zern
2015-12-15 13:02:32 -08:00
parent c0f7cc47f2
commit 11714ff158
2 changed files with 2 additions and 18 deletions
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11
src/demux/demux.c
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@@ -859,17 +859,6 @@ int WebPDemuxPrevFrame(WebPIterator* iter) {
return SetFrame(iter->frame_num - 1, iter);
}
int WebPDemuxSelectFragment(WebPIterator* iter, int fragment_num) {
if (iter != NULL && iter->private_ != NULL && fragment_num > 0) {
const WebPDemuxer* const dmux = (WebPDemuxer*)iter->private_;
const Frame* const frame = GetFrame(dmux, iter->frame_num);
if (frame == NULL) return 0;
return SynthesizeFrame(dmux, frame, fragment_num, iter);
}
return 0;
}
void WebPDemuxReleaseIterator(WebPIterator* iter) {
(void)iter;
}

9
src/webp/demux.h
View File

@@ -55,7 +55,7 @@
extern "C" {
#endif
#define WEBP_DEMUX_ABI_VERSION 0x0105 // MAJOR(8b) + MINOR(8b)
#define WEBP_DEMUX_ABI_VERSION 0x0106 // MAJOR(8b) + MINOR(8b)
// Note: forward declaring enumerations is not allowed in (strict) C and C++,
// the types are left here for reference.
@@ -155,8 +155,7 @@ struct WebPIterator {
};
// Retrieves frame 'frame_number' from 'dmux'.
// 'iter->fragment' points to the first fragment on return from this function.
// Individual fragments may be extracted using WebPDemuxSelectFragment().
// 'iter->fragment' points to the frame on return from this function.
// Setting 'frame_number' equal to 0 will return the last frame of the image.
// Returns false if 'dmux' is NULL or frame 'frame_number' is not present.
// Call WebPDemuxReleaseIterator() when use of the iterator is complete.
@@ -170,10 +169,6 @@ WEBP_EXTERN(int) WebPDemuxGetFrame(
WEBP_EXTERN(int) WebPDemuxNextFrame(WebPIterator* iter);
WEBP_EXTERN(int) WebPDemuxPrevFrame(WebPIterator* iter);
// Sets 'iter->fragment' to reflect fragment number 'fragment_num'.
// Returns true if fragment 'fragment_num' is present, false otherwise.
WEBP_EXTERN(int) WebPDemuxSelectFragment(WebPIterator* iter, int fragment_num);
// Releases any memory associated with 'iter'.
// Must be called before any subsequent calls to WebPDemuxGetChunk() on the same
// iter. Also, must be called before destroying the associated WebPDemuxer with