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MUX API Updates

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- Add alpha support in mux.
- Remove WebPMuxAddNamedData() and WebPMuxGetNamedData() APIs. Add WebPMuxSetImage(), WebPmuxGetImage() and WebPMuxDeleteImage() APIs instead.
- Refactor code using WebPImage struct.
- Corresponding changes in webpmux binary.
- WebPMuxSetImage()/AddFrame()/AddTile() can now work with data which starts from "RIFF...". This simplifies reading a single-image webp file and adding it as an image/frame/tile in mux.

Change-Id: I7d98a6407dfe55c84a682ef7e46bc622f5a6f8d9
This commit is contained in:
Urvang Joshi
2011-11-22 14:40:41 +05:30
parent 059f03ef99
commit c398f59536
5 changed files with 779 additions and 374 deletions
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6
README.mux
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@ -73,7 +73,8 @@ metadata.
int copy_data = 0;
WebPMux* mux = WebPMuxNew();
// ... (Prepare image data).
WebPMuxAddNamedData(mux, 1, "image", image_data, image_data_size, copy_data);
WebPMuxSetImage(mux, image_data, image_data_size, alpha_data, alpha_size,
copy_data);
// ... (Prepare ICCP color profile data).
WebPMuxSetColorProfile(mux, icc_data, icc_data_size, copy_data);
// ... (Prepare XMP metadata).
@ -90,7 +91,8 @@ Example#2 (pseudo code): Get image & color profile data from a WebP file.
int copy_data = 0;
// ... (Read data from file).
WebPMux* mux = WebPMuxCreate(data, data_size, copy_data);
WebPMuxGetNamedData(mux, "image", 1, &image_data, &image_data_size);
WebPMuxGetImage(mux, &image_data, &image_data_size,
&alpha_data, &alpha_size);
// ... (Consume image_data; e.g. call WebPDecode() to decode the data).
WebPMuxGetColorProfile(mux, &icc_data, &icc_data_size);
// ... (Consume icc_data).