Re: [Rhythmbox-devel] Cover Art Size Issue

[Ed Catmur <ed catmur co uk>]

On Fri, 2007-11-30 at 18:47 -0700, Richi Plana wrote:
> On Fri, 2007-11-30 at 16:51 -0700, Alex Lancaster wrote:
> > RP> cover.jpg wouldn't display but when I mogrify'd it to -quality 60
> > RP> -size 500x500, RB would display it.
> > 
> > Sounds like a bug.  Did you check bugzilla?  If not, file it.
> 
> I just did. It's now here:
> 
> http://bugzilla.gnome.org/show_bug.cgi?id=500785
> 
> > RP> BTW, I'm just assuming it's the size of the file that's the
> > RP> difference, but I'm not certain. It could be the quality or
> > RP> dimension ... or some different encoding. *shrug*. Would the devs
> > RP> want a copy of one of my cover.jpg files that won't display?
> > RP> Better yet, could you teach me how to debug?  --
> > 
> > You can run rhythmbox in debug mode with:
> > 
> > rhythmbox -d
> > 
> > or if you want to filter on specific keywords, e.g., "foobar", within
> > the debugging output you can use:
> > 
> > rhythmbox -D foobar
> > 
> > In your case you could filter on the artdisplay plugin using:
> > 
> > rhythmbox -D artdisplay
> 
> No luck. The plugin wasn't revealing any clues. What library does it use
> for image manipulation?
> --

gdk-pixbuf.  Try the following:

>>> import gtk
>>> p = gtk.gdk.PixbufLoader()
>>> data = open("cover.jpg").read()
>>> p.write(data)
True
>>> p.close()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
gobject.GError: Error interpreting JPEG image file (Application
transferred too few scanlines)

Possibly a gdk-pixbuf issue, as opening that same image with
gtk.gdk.pixbuf_new_from_file() works fine.

Also replied on bugzilla.

Ed