Function static variables are initialized on the first call to the function. In C the initialization of function static variables is not thread-safe. Use file static variables instead in the WEBP_DSP_INIT_FUNC() macro. Remove the volatile qualifier for the pthread version of the func##_last_cpuinfo_used variable because the variable is only accessed while holding the mutex. Change-Id: I1237904a49d2467d7ce79fc53f9e7f966aa7a5c1
WebP Codec
__ __ ____ ____ ____
/ \\/ \/ _ \/ _ )/ _ \
\ / __/ _ \ __/
\__\__/\____/\_____/__/ ____ ___
/ _/ / \ \ / _ \/ _/
/ \_/ / / \ \ __/ \__
\____/____/\_____/_____/____/v1.6.0
WebP codec is a library to encode and decode images in WebP format. This package contains the library that can be used in other programs to add WebP support, as well as the command line tools 'cwebp' and 'dwebp' to compress and decompress images respectively.
See https://developers.google.com/speed/webp for details on the image format.
The latest source tree is available at https://chromium.googlesource.com/webm/libwebp
It is released under the same license as the WebM project. See https://www.webmproject.org/license/software/ or the "COPYING" file for details. An additional intellectual property rights grant can be found in the file PATENTS.
Building
See the building documentation.
Encoding and Decoding Tools
The examples/ directory contains tools to encode and decode images and animations, view information about WebP images, and more. See the tools documentation.
APIs
See the APIs documentation, and API usage examples in the
examples/
directory.
Bugs
Please report all bugs to the issue tracker. For security reports, select 'Security report' from the Template dropdown.
Patches welcome! See how to contribute.
Discuss
Email: webp-discuss@webmproject.org
Web: https://groups.google.com/a/webmproject.org/group/webp-discuss