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Changes between Initial Version and Version 1 of Encodings/webp


Ignore:
Timestamp:
04/01/14 15:11:57 (7 years ago)
Author:
Antoine Martin
Comment:

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  • Encodings/webp

    v1 v1  
     1= WebP Encoding =
     2
     3[[BR]]
     4
     5{{{#!div class="box"
     6This [/wiki/Encoding] has two encoders:
     7* a Cython based encoder using the [https://developers.google.com/speed/webp/docs/api#encodingadvancedapi Advanced Encoding API] (only available in version 0.13 onwards) which is faster
     8* a {{{python-webm}}} fallback
     9
     10[[BR]]
     11
     12Be aware that although {{{webp}}} offers efficient compression, it can be quite slow at times, especially in "lossless" mode.
     13}}}
     14
     15{{{#!div class="box"
     16== Updated python-webm ==
     17
     18We carry a modified version of {{{python-webm}}}, with the following changes:
     19* [https://code.google.com/p/python-webm/issues/detail?id=2 support for lossless modes]
     20* [#491 memory leak fixed]
     21* removed buggy code in YUV to RGB conversion files - which we don't need since we have our own [/wiki/CSC colourspace conversion] modules.
     22}}}
     23
     24{{{#!div class="box"
     25== Links and Tickets ==
     26
     27* [https://developers.google.com/speed/webp/ WebP] upstream: ''A new image format for the Web''
     28* [https://code.google.com/p/python-webm/ python-webm] upstream
     29* #491: ''webp is leaking memory'' (same bug in Python Pillow: [https://github.com/python-imaging/Pillow/issues/586 Pillow issue 586])
     30* [ticket:419#comment:4]: ''better/faster lossless encoding selection'': webp lossless can be extremely slow!
     31}}}