mirror of
https://github.com/webmproject/libwebp.git
synced 2024-12-26 13:48:21 +01:00
75 lines
1.9 KiB
Plaintext
75 lines
1.9 KiB
Plaintext
__ __ ____ ____ ____
|
|
/ \\/ \/ _ \/ _ )/ _ \
|
|
\ / __/ _ \ __/
|
|
\__\__/\____/\_____/__/ _________ ____ ____
|
|
\ \ / _ \/ _/ / \ \ / _ \ _ \
|
|
/ \ \ __/ \_/ / / \ \ __/ /_
|
|
\_____/_____/____/____/\_____/_____/_/\__/v0.1
|
|
|
|
Description:
|
|
============
|
|
|
|
WEBP decoder: libwebpdecode.so is a simple library for
|
|
decoding WEBP image files.
|
|
|
|
See http://code.google.com/speed/webp
|
|
|
|
|
|
It is released under the same license as the WebM project.
|
|
See http://www.webmproject.org/license/software/ or the
|
|
file "COPYING" file for details. An additional intellectual
|
|
property rights grant can be found in the file PATENTS.
|
|
|
|
|
|
API:
|
|
====
|
|
|
|
This is mainly just one function to call, so just have a look at
|
|
the file src/webp/decode.h for the details and variants:
|
|
|
|
#include "webp/decode.h"
|
|
uint8_t* WebPDecodeRGB(const uint8_t* data, uint32_t data_size,
|
|
int *width, int *height);
|
|
|
|
A lower-level API is available from the header file <webp/decode_vp8.h>
|
|
|
|
|
|
Building:
|
|
=========
|
|
|
|
If everything goes right, then:
|
|
|
|
./configure
|
|
make
|
|
make install
|
|
|
|
should be all you need to have the following files
|
|
|
|
/usr/local/include/webp/decode.h
|
|
/usr/local/include/webp/decode_vp8.h
|
|
/usr/local/lib/libwebpdecode.*
|
|
|
|
installed.
|
|
|
|
|
|
Decoding example:
|
|
=================
|
|
|
|
there's a decoding example in example/dwebp.c which will take a .webp file and
|
|
decode it to a PPM image file. This is simply to demonstrate use of the API.
|
|
You can verify the file test.webp decodes to exactly the same as test_ref.ppm:
|
|
`cd examples && ./dwebp test.webp -o test.ppm && diff test.ppm test_ref.ppm`
|
|
|
|
Bugs:
|
|
=====
|
|
|
|
Please report all bugs to our issue tracker:
|
|
http://code.google.com/p/webp/issues
|
|
Patches welcome! See this page to get started:
|
|
http://www.webmproject.org/code/contribute/submitting-patches/
|
|
|
|
Discuss:
|
|
========
|
|
|
|
Email: webp-discuss@webmproject.org
|