GIF Upload Problem

erdm · November 18th, 2006, 02:17 PM

Hi,

From my very simple tests, there is a problem with uploading gif files.
Whenever i tried to upload a gif file, the page hangs and a file named core.#### is created ...

Anyway to fix this ?

Thanks

Zachariah · November 18th, 2006, 02:25 PM

I have not seen any issues.

Just did a test with GD2.

I also tryed w/ image magik with out a problem.

- Can you process jpg and other formats ?

erdm · November 18th, 2006, 02:47 PM

the problem is there is not a problem with jpg ...
but when it comes to gif files ... it seems there is a problem with gif files ?
i will try again and post the results ...

erdm · November 18th, 2006, 04:01 PM

Allright once again the error occured.
There isn't any problem with the jpg file type.

But when it comes to gif images, the script stops working and a core.#### file is created ...

I tried to reupload all files ...

erdm · November 20th, 2006, 02:36 AM

any update on this ?

sebulba · November 20th, 2006, 08:11 AM

I have the exact same problem and can confirm.

sebulba · November 20th, 2006, 08:28 AM

it does not happen for each gif file.
Here with GD2 enabled, apache 1.3.33 - PHP 4.3.10 (standard linux debian stable)

Here's a gif that seems to do the trick, and kills the upload process.
http://gerard.mir.free.fr/images/sfe_lep1.gif
http://gerard.mir.free.fr/images/sfe_lep2.gif

Zachariah · November 20th, 2006, 08:29 AM

What type of Gif images are they ?
- Animated ?
- Static ?

Are you useing GD2 or Image magik ?

sebulba · November 20th, 2006, 08:33 AM

was typing my answer at the same time

Zachariah · November 20th, 2006, 08:37 AM

Quote:

Originally Posted by sebulba

was typing my answer at the same time

ha

- I'll test them out and see what going on.

sebulba · November 20th, 2006, 08:39 AM

I'm experienced with PHP and GD and must admit I have never seen such behaviour before. It is more than likely a bug in GD or PHP. Altough what triggers the bug might be in the VBG code obviously, and might be avoided.

I'm curious to see if you can reproduce. On my site, it is absolutely impossible to upload those files, I just tested again (2.1).

Really strange.

Zachariah · November 20th, 2006, 08:40 AM

I tryed those images and yes they just sat there w/ the hour glass going.
- I also tryed to upload to Photopost Pro

"The file you uploaded was not an acceptable format.: sfe_lep1.gif"

What was used to create the images ?

EDIT:
I'll run some command line w/ image magic and GD to see what errors popup

sebulba · November 20th, 2006, 08:50 AM

I have no idea where these images come from.
But this happens for more than a few gif files; most of the files seem to have nothing in common tough.
It's weird. It does not ruin my installation tough - just wanted to confirm that this guy's bug indeed exists.

Zachariah · November 20th, 2006, 09:00 AM

- I did take them into Photoshop 7
"Save for Web" as a Gif and it uploaded with out problems.

There must be some extra info in the images that is killing the process.

erdm · November 20th, 2006, 01:38 PM

I can provide some basic informations about my gif file;

Width: 256 px
Height: 384 px
Horizontal Resolution: 96 dpi
Vertical Resolution: 96 dpi
Bit Dept: 8
Frame Count: 1

I just opened my gif file with notepad and my gif file header starts with "GIF87a" while my other gif files starts with "GIF89a"

Thank you sebulba for confirming my problem

erdm · November 25th, 2006, 11:02 AM

Any update on this ?

erdm · December 9th, 2006, 01:45 PM

Any update on this ? (2)

Zachariah · December 9th, 2006, 03:06 PM

I have tested the output of 20 or so programs.
All output in gif format. I have not made the gallery error on upload.

I have no answer yet.

erdm · December 10th, 2006, 10:56 AM

Quote:

Originally Posted by Zachariah

I have tested the output of 20 or so programs.
All output in gif format. I have not made the gallery error on upload.

I have no answer yet.

i can provide a gif file which causes an error ...

Chuck S · December 10th, 2006, 01:38 PM

Quote:

Originally Posted by Zachariah

- I did take them into Photoshop 7
"Save for Web" as a Gif and it uploaded with out problems.

There must be some extra info in the images that is killing the process.

Interesting I know with jpg images there is extra information stored which years ago led to the dreaded IE/PhotoShop bug with Abode and we coded into Photopost jpegtran so users could have jpegtran strip the image header of the offending info but I have never heard of GIF images being encoded in such a manner.