diff options
Diffstat (limited to 'media/libwebp/demux/demux.c')
| -rw-r--r-- | media/libwebp/demux/demux.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/media/libwebp/demux/demux.c b/media/libwebp/demux/demux.c index 100eab8c0..aec2a0a2d 100644 --- a/media/libwebp/demux/demux.c +++ b/media/libwebp/demux/demux.c @@ -23,9 +23,9 @@ #include "../webp/demux.h" #include "../webp/format_constants.h" -#define DMUX_MAJ_VERSION 0 -#define DMUX_MIN_VERSION 3 -#define DMUX_REV_VERSION 2 +#define DMUX_MAJ_VERSION 1 +#define DMUX_MIN_VERSION 0 +#define DMUX_REV_VERSION 0 typedef struct { size_t start_; // start location of the data @@ -205,12 +205,14 @@ static void SetFrameInfo(size_t start_offset, size_t size, frame->complete_ = complete; } -// Store image bearing chunks to 'frame'. +// Store image bearing chunks to 'frame'. 'min_size' is an optional size +// requirement, it may be zero. static ParseStatus StoreFrame(int frame_num, uint32_t min_size, MemBuffer* const mem, Frame* const frame) { int alpha_chunks = 0; int image_chunks = 0; - int done = (MemDataSize(mem) < min_size); + int done = (MemDataSize(mem) < CHUNK_HEADER_SIZE || + MemDataSize(mem) < min_size); ParseStatus status = PARSE_OK; if (done) return PARSE_NEED_MORE_DATA; @@ -401,9 +403,9 @@ static ParseStatus ParseSingleImage(WebPDemuxer* const dmux) { frame = (Frame*)WebPSafeCalloc(1ULL, sizeof(*frame)); if (frame == NULL) return PARSE_ERROR; - // For the single image case we allow parsing of a partial frame, but we need - // at least CHUNK_HEADER_SIZE for parsing. - status = StoreFrame(1, CHUNK_HEADER_SIZE, &dmux->mem_, frame); + // For the single image case we allow parsing of a partial frame, so no + // minimum size is imposed here. + status = StoreFrame(1, 0, &dmux->mem_, frame); if (status != PARSE_ERROR) { const int has_alpha = !!(dmux->feature_flags_ & ALPHA_FLAG); // Clear any alpha when the alpha flag is missing. |