The problem is somewhat strange. It has something to do with gnome-vfs. Therefore I cannot name one single package. To understand the problem, I explain the setup first, then I want to tell you what I have already tried and if possible, I will add a mp3 file which can be used to reproduce the error.
The Setup
We use a server in our home, where we store all our data including our music files. The server allows access through samba and ftp (but the problem can be reproduced also with webdav). For the current problem, I used ftp access. On the remote side, I use vsftpd on a ubuntu (dapper). The local machine is running ubuntu 6.10 (edgy).
The Problem
I can login and browse the remote directory with nautilus, and I can open the property dialog for other files on the server, this includes mp3 files. But for no reason, I cannot do the same thing for all mp3 files. For some files, nautilus tells me to wait and doesn't bring up the property dialog at all.
When I try to add the same file to the rhythmbox music database, I get the gstreamer error "failed to change state". Also I cannot open the music files with totem.
I've tested gnome-vfs with gnomevfs-ls, gnomevfs-cat and gnomvfs-info. All three work fine on the files, nautilus, totem and rhythmbox have problem with.
First I thought that might have something to do with gstreamer, but as the problem can be reproduced not only with some mp3s, but also with ogg files, I guess it has to do something with gnome-vfs. The problem cannot be based on the tool, which created the mp3s(oggs) because files from the same CD, ripped with the same tool, behave differently. Some work, others don't. And the strange thing is, you can repeat it, and always the same files are rejected.
It has nothing to do with permissions, user names or groups, because all files are owned by the same user and same group, and all files have the same permissions. The same thing applies to the directories. They are all "rwx" for the music user.
I also can copy the files from remote to my local machine (with nautilus). Then I can add them to the music database without any trouble.
Hope you have more luck in finding the real error. Don't hessitate to ask me any questions.
cu
Reiner
Thanks for your bug report. Could you please try the following 'gst-launch-0.10 playbin uri=ftp://.