Don't popup error dialog when playing unsupported files.
Submitted by Jorrith Schaap
Drag 'n drop a dir with mixed files (eg. mp3s + a jpg of the album cover) to Totem. All files get added to the playlist, even the unsupported jpeg. On playback, when Totem tries to play the jpeg (which fails), an error dialog pops up.
Ideally, Totem should filter out all unsupported files from the playlist, just like Winamp does.