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Doc Bug #79809 imagecreatefromwebp() does not support animated WebP
Submitted: 2020-07-08 13:37 UTC Modified: 2020-07-08 14:19 UTC
Votes:4
Avg. Score:4.0 ± 0.7
Reproduced:4 of 4 (100.0%)
Same Version:3 (75.0%)
Same OS:1 (25.0%)
From: vincent dot enjalbert at gmail dot com Assigned:
Status: Verified Package: GD related
PHP Version: 7.4.7 OS: Ubuntu Xenial
Private report: No CVE-ID: None
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 [2020-07-08 13:37 UTC] vincent dot enjalbert at gmail dot com 
Description:
------------
The error "gd-webp cannot allocate temporary buffer " seems to occurs when using "imagecreatefromwebp" on an *animated* webp image. 

For example this one : https://media1.giphy.com/media/Lm5hxmmI6ucOQGfjKj/200w.webp

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 [2020-07-08 14:19 UTC] cmb@php.net
-Summary: gd-webp cannot allocate temporary buffer +Summary: imagecreatefromwebp() does not support animated WebP -Status: Open +Status: Verified -Type: Bug +Type: Documentation Problem
 [2020-07-08 14:19 UTC] cmb@php.net 
Indeed, animated WebP (I think extended WebP in general) is not
(yet) supported.  You would need to demux the stream first.  This
has to be documented.

Besides the missing documentation, this is a libgd issue, so
please report upstream[1] (unless there is already a respective
issue).  Thanks.

[1] <https://github.com/libgd/libgd/issues>
 [2020-07-08 16:13 UTC] vincent dot enjalbert at gmail dot com 
Blocked on : https://github.com/libgd/libgd/issues/648
 
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