Bug #80016 [Com]: PHP Warning: exif_thumbnail: Illegal IFD size
Edit report at https://bugs.php.net/bug.php?id=80016&edit=1
ID: 80016
Comment by: 7tonin at laposte dot net
Reported by: 7tonin at laposte dot net
Summary: PHP Warning: exif_thumbnail: Illegal IFD size
Status: Verified
Type: Bug
Package: EXIF related
Operating System: linux 5.7.14-desktop-1.mga7 x86
PHP Version: 7.3.21
Block user comment: N
Private report: N
New Comment:
Nice, thank you
Minor comments
- about "Another bad thing is file permissions are then changed to apache:apache"
It's because my script run by apache tries to rebuild such thumbnails. Apologize.
- about "Work around, if you have got ImageMagick on the server, here is a fallback".
Please change "$type='image/jpeg';" with
$type=IMAGETYPE_JPEG;
Previous Comments:
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[2020-08-27 07:52:31] cmb@php.net
Actually, I did receive your email; maybe I just missed it
the other day.
Anyhow, with latest PHP-7.3 I don't get "Illegal IFD size"
warnings, but rather "corrupt EXIF header: maximum directory
nesting level reached" warnings. There is a PR[1] which would fix
these.
[1] <https://github.com/php/php-src/pull/5976>
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[2020-08-26 21:27:06] cmb@php.net
Thanks, but that mail didn't went through. Not sure what to do.
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[2020-08-26 17:30:27] 7tonin at laposte dot net
I did at [2020-08-26 16:03 UTC]
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[2020-08-26 16:40:02] cmb@php.net
Could you send the image to me, please?
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[2020-08-26 16:10:19] 7tonin at laposte dot net
Sorry, when file.io is used for free, there is just one download available. That's pretty
short. So I will send the image to anyone asking for.
Work around, if you have got ImageMagick on the server, here is a fallback to fill $thumb_data :
$thumb_data = exif_thumbnail($image_source_filename, $width, $height, $type) ;
if ($thumb_data==false)
{
$return_var=null;
$type='image/jpeg';
ob_start();
passthru('exiftool -b -thumbnailImage '.$image_source_filename, $return_var);
$thumb_data = ob_get_contents();
ob_end_clean();
}
This fallback shows ImageMagick is able to retrieve exif thumbnail.
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