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use WebPSafe[CM]alloc/WebPSafeFree instead of [cm]alloc/free
there's still some malloc/free in the external example This is an encoder API change because of the introduction of WebPMemoryWriterClear() for symmetry reasons. The MemoryWriter object should probably go in examples/ instead of being in the main lib, though. mux_types.h stil contain some inlined free()/malloc() that are harder to remove (we need to put them in the libwebputils lib and make sure link is ok). Left as a TODO for now. Also: WebPDecodeRGB*() function are still returning a pointer that needs to be free()'d. We should call WebPSafeFree() on these, but it means exposing the whole mechanism. TODO(later). Change-Id: Iad2c9060f7fa6040e3ba489c8b07f4caadfab77b
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7
README
7
README
@@ -443,15 +443,20 @@ The encoding flow looks like:
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// Set up a byte-output write method. WebPMemoryWriter, for instance.
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WebPMemoryWriter wrt;
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WebPMemoryWriterInit(&wrt); // initialize 'wrt'
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pic.writer = MyFileWriter;
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pic.custom_ptr = my_opaque_structure_to_make_MyFileWriter_work;
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// initialize 'wrt' here...
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// Compress!
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int ok = WebPEncode(&config, &pic); // ok = 0 => error occurred!
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WebPPictureFree(&pic); // must be called independently of the 'ok' result.
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// output data should have been handled by the writer at that point.
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// -> compressed data is the memory buffer described by wrt.mem / wrt.size
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// deallocate the memory used by compressed data
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WebPMemoryWriterClear(&wrt);
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-------------------------------------- END PSEUDO EXAMPLE
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