Re: Read GIF file descriptor does not work in PerlMagick

On Thu, 14 Aug 2003, Esteban Fernandez Stafford wrote:

> Hello all,
>
> I sent this email to the ImageMagick list a few months ago. Now I
> wanted to try GraphicsMagick and I found the same bug again.
>
> I am trying to do some image transformations on Gifs and Jpegs. It is
> very important that I can read the files from an open file descriptor
> and so far I am not having much success. Following is the program I am
> using to get started with ImageMagick perl API. It only reads an
> image, flips it and saves it to another file.
>
> The problem is that when I try to transform a GIF file $image->Read
> does not load the image and does no complain about anything. Then
> $image->Flip complains Exception 410: No images defined (Flip).
>
> First I thought my code was wrong, but the program works with JPEG
> images very well.
>
> Then I thought it might be that the GIFs I was using where corrupt or
> wrong in some way. But then I tried to use $image->Read (set $open=0
> in the program below) with the file itself (not the open descriptor)
> and it worked!

I will take a look.  I will make sure that there is a test in the
PerlMagick test suite for this.

Bob
======================================
Bob Friesenhahn
[email protected]
http://www.simplesystems.org/users/bfriesen



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