Bug #69611 [Opn->Fbk]: imagecreatefrompng -> imagewebp conversion results in not valid webp file
Edit report at https://bugs.php.net/bug.php?id=69611&edit=1
ID: 69611
Updated by: cmb@php.net
Reported by: aron dot novak at agenceinovae dot com
Summary: imagecreatefrompng -> imagewebp conversion results
in not valid webp file
-Status: Open
+Status: Feedback
Type: Bug
Package: GD related
Operating System: Fedora release 21 (Twenty One)
PHP Version: 5.6.8
-Assigned To:
+Assigned To: cmb
Block user comment: N
Private report: N
New Comment:
This issue might be related to bug #66590. Please check, whether
the filesize of the broken WebP files is even or odd.
Previous Comments:
------------------------------------------------------------------------
[2015-07-11 12:05:51] cmb@php.net
Related To: Bug #70045
------------------------------------------------------------------------
[2015-05-11 13:56:10] aron dot novak at agenceinovae dot com
<?php
print_r(gd_info());
Array
(
[GD Version] => 2.1.0
[FreeType Support] => 1
[FreeType Linkage] => with freetype
[T1Lib Support] => 1
[GIF Read Support] => 1
[GIF Create Support] => 1
[JPEG Support] => 1
[PNG Support] => 1
[WBMP Support] => 1
[XPM Support] => 1
[XBM Support] => 1
[JIS-mapped Japanese Font Support] =>
)
------------------------------------------------------------------------
[2015-05-11 13:14:02] cmb@php.net
I can't reproduce this issue on Windows 7 with PHP 5.6.8 and [GD
Version] => bundled (2.1.0 compatible). Which version of libGD do
you use (see gd_info() or phpinfo())?
------------------------------------------------------------------------
[2015-05-09 04:05:37] aron dot novak at agenceinovae dot com
Description:
------------
I was able to convert a jpeg to webp using $im = imagecreatefromjpeg($logo); imagewebp($im);
But the same failed from certain png file.
With a random jpeg file, using imagecreatefromjpeg, it works fine.
Test script:
---------------
<?php
$logo = 'http://download.gna.org/libre-nord/comm/Tux/tux_npdc.png';
$im = imagecreatefrompng($logo);
$temp = tempnam(sys_get_temp_dir(), 'gd');
imagewebp($im, $temp);
imagedestroy($im);
system("display $temp\n");
Expected result:
----------------
The image should be displayed.
Actual result:
--------------
display: insufficient image data in file `/tmp/gdC9IboF' @ error/webp.c/ReadWEBPImage/303.
------------------------------------------------------------------------
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