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Bug #58932 Error when converting an image
Submitted: 2009-11-03 12:49 UTC Modified: 2009-11-12 12:38 UTC
From: justin dot hendrickson at gmail dot com Assigned:
Status: Not a bug Package: gmagick (PECL)
PHP Version: 5.2.6 OS: Ubuntu 9.04
Private report: No CVE-ID: None
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From: justin dot hendrickson at gmail dot com
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 [2009-11-03 12:49 UTC] justin dot hendrickson at gmail dot com 
Description:
------------
When trying to convert a JPG to GIF, PHP crashes with an assertion error.

Reproduce code:
---------------
<?php
$gmagick = new Gmagick("/home/jhendric/Pictures/kittenBot.jpg");
$gmagick->setImageFormat("GIF");

header("Content-Type: image/gif");
echo $gmagick;


Expected result:
----------------
A GIF image

Actual result:
--------------
php: wand/magick-image.c:9096: MagickSetImageFormat: Assertion `wand->signature == 0xabacadabUL' failed.
Aborted

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 [2009-11-12 07:29 UTC] vito@php.net 
Not enough information was provided for us to be able
to handle this bug. Please re-read the instructions at
http://bugs.php.net/how-to-report.php

If you can provide more information, feel free to add it
to this bug and change the status back to "Open".

Thank you for your interest in PECL.


Hi, which version of GraphicsMagick are you using?
 [2009-11-12 12:38 UTC] justin dot hendrickson at gmail dot com 
It appears that the problem is that I had both the imagick and gmagick extensions enabled at the same time. As soon as I disabled the imagick extension it worked.
 
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