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Incremental support for some of the mux APIs.

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This CL adds incremental support for WebPMuxCreate() and
WebPMuxGetFeatures()

Change-Id: I312122f5e817d58366e18ae238cb9e2a493811fb
This commit is contained in:
Urvang Joshi
2012-01-13 14:46:30 +05:30
parent 2e74ec8b5f
commit 8d6490dae6
6 changed files with 148 additions and 70 deletions
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15
src/webp/mux.h
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@ -34,7 +34,7 @@
//
// int copy_data = 0;
// // ... (Read data from file).
// WebPMux* mux = WebPMuxCreate(data, data_size, copy_data);
// WebPMux* mux = WebPMuxCreate(data, data_size, copy_data, NULL);
// WebPMuxGetImage(mux, &image_data, &image_data_size,
// &alpha_data, &alpha_size);
// // ... (Consume image_data; e.g. call WebPDecode() to decode the data).
@ -60,9 +60,16 @@ typedef enum {
WEBP_MUX_INVALID_ARGUMENT = -2,
WEBP_MUX_INVALID_PARAMETER = -3,
WEBP_MUX_BAD_DATA = -4,
WEBP_MUX_MEMORY_ERROR = -5
WEBP_MUX_MEMORY_ERROR = -5,
WEBP_MUX_NOT_ENOUGH_DATA = -6
} WebPMuxError;
typedef enum {
WEBP_MUX_STATE_PARTIAL = 0,
WEBP_MUX_STATE_COMPLETE = 1,
WEBP_MUX_STATE_ERROR = -1
} WebPMuxState;
// Flag values for different features used in VP8X chunk.
typedef enum {
TILE_FLAG = 0x00000001,
@ -96,11 +103,13 @@ WEBP_EXTERN(void) WebPMuxDelete(WebPMux* const mux);
// size - (in) size of raw data
// copy_data - (in) value 1 indicates given data WILL copied to the mux, and
// value 0 indicates data will NOT be copied.
// mux_state - (out) indicates the state of the mux returned. Can be passed
// NULL if not required.
// Returns:
// A pointer to the mux object created from given data - on success.
// NULL - In case of invalid data or memory error.
WEBP_EXTERN(WebPMux*) WebPMuxCreate(const uint8_t* data, uint32_t size,
int copy_data);
int copy_data, WebPMuxState* mux_state);
//------------------------------------------------------------------------------
// Single Image.