diff options
Diffstat (limited to 'drivers/webp/demux.h')
| -rw-r--r-- | drivers/webp/demux.h | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/webp/demux.h b/drivers/webp/demux.h index 6fbe775851..454f6914b2 100644 --- a/drivers/webp/demux.h +++ b/drivers/webp/demux.h @@ -55,7 +55,7 @@ extern "C" { #endif -#define WEBP_DEMUX_ABI_VERSION 0x0105 // MAJOR(8b) + MINOR(8b) +#define WEBP_DEMUX_ABI_VERSION 0x0107 // MAJOR(8b) + MINOR(8b) // Note: forward declaring enumerations is not allowed in (strict) C and C++, // the types are left here for reference. @@ -88,7 +88,8 @@ typedef enum WebPDemuxState { WEBP_EXTERN(WebPDemuxer*) WebPDemuxInternal( const WebPData*, int, WebPDemuxState*, int); -// Parses the full WebP file given by 'data'. +// Parses the full WebP file given by 'data'. For single images the WebP file +// header alone or the file header and the chunk header may be absent. // Returns a WebPDemuxer object on successful parse, NULL otherwise. static WEBP_INLINE WebPDemuxer* WebPDemux(const WebPData* data) { return WebPDemuxInternal(data, 0, NULL, WEBP_DEMUX_ABI_VERSION); @@ -137,17 +138,15 @@ WEBP_EXTERN(uint32_t) WebPDemuxGetI( struct WebPIterator { int frame_num; int num_frames; // equivalent to WEBP_FF_FRAME_COUNT. - int fragment_num; - int num_fragments; int x_offset, y_offset; // offset relative to the canvas. - int width, height; // dimensions of this frame or fragment. + int width, height; // dimensions of this frame. int duration; // display duration in milliseconds. WebPMuxAnimDispose dispose_method; // dispose method for the frame. int complete; // true if 'fragment' contains a full frame. partial images // may still be decoded with the WebP incremental decoder. - WebPData fragment; // The frame or fragment given by 'frame_num' and - // 'fragment_num'. - int has_alpha; // True if the frame or fragment contains transparency. + WebPData fragment; // The frame given by 'frame_num'. Note for historical + // reasons this is called a fragment. + int has_alpha; // True if the frame contains transparency. WebPMuxAnimBlend blend_method; // Blend operation for the frame. uint32_t pad[2]; // padding for later use. @@ -155,8 +154,7 @@ 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 +168,6 @@ 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 |