Problems with phonon-gst and JuK

[Michael Pyne]

Hi all,

In the process of trying to debug whether volume changes I get with phonon-
xine are due to JuK code is JuK's fault, I tried to use phonon-gst (from 
kdereview) to test a different backend.

I got it to build and install, and after a change to JuK to actually work with 
phonon-gst (JuK's fault ;), I have issues with crashing when switching to the 
next song (relevant code is in playermanager.cpp, crossfadeToFile()).

I tried debugging it in gdb and it crashes in medianode.cpp, line 203, where 
it calls Q_ASSERT(sink->root());  In this case, the sink indeed has no root.

Now, if I single step through the crossfadeTo() function in gdb, I get no 
crashes whatsoever (although nothing is playing once I continue either, I can 
play a song fine).  So it seems like some kind of timing issue.

Even if I replace the crossfadeToFile() call with a simple 
MediaObject::setCurrentSource() on m_media in playermanager.cpp, I get the 
same crash.  Is this a known problem or am I using the Phonon API wrong?

Regards,
 - Michael Pyne
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