Bug #69611 [Fbk->NoF]: imagecreatefrompng -> imagewebp conversion results in not valid webp file

From: Date: Sun, 02 Aug 2015 04:22:15 +0000
Subject: Bug #69611 [Fbk->NoF]: imagecreatefrompng -> imagewebp conversion results in not valid webp file
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-194885@lists.php.net to get a copy of this message 
Edit report at https://bugs.php.net/bug.php?id=69611&edit=1

 ID:               69611
 Updated by:       php-bugs@lists.php.net
 Reported by:      aron dot novak at agenceinovae dot com
 Summary:          imagecreatefrompng -> imagewebp conversion results in
                   not valid webp file
-Status:           Feedback
+Status:           No Feedback
 Type:             Bug
 Package:          GD related
 Operating System: Fedora release 21 (Twenty One)
 PHP Version:      5.6.8
 Assigned To:      cmb
 Private report:   N

 New Comment:

No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.


Previous Comments:
------------------------------------------------------------------------
[2015-07-19 16:42:02] cmb@php.net

This issue might be related to bug #66590. Please check, whether
the filesize of the broken WebP files is even or odd.

------------------------------------------------------------------------
[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.


------------------------------------------------------------------------



--
Edit this bug report at https://bugs.php.net/bug.php?id=69611&edit=1

Thread (5 messages)

« previous php.bugs (#194885) next »