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Merge changes I1d97a633,I81c59093

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* changes:
  libwebp/demux: add WebPDemuxGetI
  libwebp/demux: add extended format parsing
This commit is contained in:
pascal massimino
2012-06-13 00:28:25 -07:00
committed by Gerrit Code Review
parent d974a9cc15 ad9ada3b9f
commit d0601b0107
2 changed files with 359 additions and 14 deletions
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16
src/webp/mux.h
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@ -502,6 +502,22 @@ static WEBP_INLINE WebPDemuxer* WebPDemuxPartial(
// Frees memory associated with 'dmux'.
WEBP_EXTERN(void) WebPDemuxDelete(WebPDemuxer* const dmux);
//------------------------------------------------------------------------------
// Data/information extraction.
typedef enum {
WEBP_FF_FORMAT_FLAGS, // Extended format flags present in the 'VP8X' chunk.
WEBP_FF_CANVAS_WIDTH,
WEBP_FF_CANVAS_HEIGHT,
WEBP_FF_LOOP_COUNT
} WebPFormatFeature;
// Get the 'feature' value from the 'dmux'.
// NOTE: values are only valid if WebPDemux() was used or WebPDemuxPartial()
// returned a state > WEBP_DEMUX_PARSING_HEADER.
WEBP_EXTERN(uint32_t) WebPDemuxGetI(
const WebPDemuxer* const dmux, WebPFormatFeature feature);
//------------------------------------------------------------------------------
#if defined(__cplusplus) || defined(c_plusplus)