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GetFeatures: Detect invalid VP8X/VP8/VP8L data

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This facilitates early error detection during decode/render.
Also, related refactoring.

Change-Id: Ia6c7cd91dec202a2a68dae2118f5981cf1eaa83d
This commit is contained in:
Urvang Joshi
2013-05-10 14:25:00 -07:00
parent 5818cff770
commit 352d0dee99
5 changed files with 31 additions and 54 deletions
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2
src/webp/mux.h
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@ -329,7 +329,7 @@ WEBP_EXTERN(WebPMuxError) WebPMuxGetCanvasSize(const WebPMux* mux,
// Enum 'WebPFeatureFlags' can be used to test individual flag values.
// Returns:
// WEBP_MUX_INVALID_ARGUMENT - if mux or flags is NULL.
// WEBP_MUX_BAD_DATA - if VP8X/VP8L chunk in mux is invalid.
// WEBP_MUX_BAD_DATA - if VP8X/VP8/VP8L chunk or canvas size is invalid.
// WEBP_MUX_OK - on success.
WEBP_EXTERN(WebPMuxError) WebPMuxGetFeatures(const WebPMux* mux,
uint32_t* flags);