Re: [Pan-users] Error saving large JPEG image

[Paul Crawford]

> > On Sun 09 Aug 2009 at 18:50:15 +0100, Paul Crawford wrote:
> > > disk. Rather  as if pan has dropped/inserted the odd byte or two in  
> > > combining the parts. I have seen this on other large images as well.
> > Last time I checked (which admittedly is quite a while ago), Pan's Yenc
> > decoder is faulty. It just concatenates the binary parts it finds, with
> > no regard to the byte ranges that are indicated for them. If the 3 parts
> > have overlapping ranges, Pan would mis-decode them. (If a part is
> > missing, it doesn't insert an empty block with 0s either).
>
> I use Pan 0.133 on my windows machine and Pan decodes and combines yEnc jpg's 
> and movie files without any problem.
> There is always the occasional mis-encoded file but that is rare in the groups 
> I follow.

It works OK for small JPEG images, and seems to work for .mpeg files and 
.rar archives.

As I said, what is odd is the image in pan's viewer is fine, but on 
saving it to disk seems to have displaced each part.

Olaf's suggestion makes sense, but has anyone any idea why there would 
be two occurrences of the multi-part decode (for pan's window and for 
save to disk), and where they are in pan's code?

Regards,
Paul