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76 lines
2.0 KiB
Plaintext
76 lines
2.0 KiB
Plaintext
__ __ ____ ____ ____
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/ \\/ \/ _ \/ _ )/ _ \
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\ / __/ _ \ __/
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\__\__/\____/\_____/__/ _________ ____ ____
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\ \ / _ \/ _/ / \ \ / _ \ _ \
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/ \ \ __/ \_/ / / \ \ __/ /_
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\_____/_____/____/____/\_____/_____/_/\__/v0.1
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Description:
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============
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WEBP decoder: libwebpdecode.so is a simple library for
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decoding WEBP image files.
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See http://code.google.com/speed/webp
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It is released under the same license as the WebM project.
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See http://www.webmproject.org/license/software/ or the
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file "COPYING" file for details. An additional intellectual
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property rights grant can be found in the file PATENTS.
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API:
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====
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This is mainly just one function to call, so just have a look at
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the file src/webp/decode.h for the details and variants:
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#include "webp/decode.h"
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uint8_t* WebPDecodeRGB(const uint8_t* data, uint32_t data_size,
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int *width, int *height);
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A lower-level API is available from the header file <webp/decode_vp8.h>
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Building:
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=========
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If everything goes right, then:
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./configure
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make
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make install
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should be all you need to have the following files
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/usr/local/include/webp/decode.h
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/usr/local/include/webp/decode_vp8.h
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/usr/local/lib/libwebpdecode.*
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installed.
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Decoding example:
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=================
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there's a decoding example in example/dwebp.c which will take a .webp file and
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decode it to a PNG image file. This is simply to demonstrate use of the API.
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It also decodes to PPM (or even PGM) format.
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You can verify the file test.webp decodes to exactly the same as test_ref.ppm:
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`cd examples && ./dwebp test.webp -ppm -o test.ppm && diff test.ppm test_ref.ppm`
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Bugs:
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=====
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Please report all bugs to our issue tracker:
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http://code.google.com/p/webp/issues
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Patches welcome! See this page to get started:
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http://www.webmproject.org/code/contribute/submitting-patches/
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Discuss:
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========
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Email: webp-discuss@webmproject.org
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