Bug 281119

Version:           unspecified (using KDE 4.7.0) 
OS:                Linux

When trying to play a Song resolved via dilandau, tomahawk crashes

Reproducible: Always

Steps to Reproduce:
-) Use Tomahawk Master
-) Use & install Dilandau Resolver from https://github.com/tomahawk-player/tomahawk-resolvers

Go to Charts, click on Coldplay. Wait until it resolves a few Songs and try to play one. Click a little bit through the Songs and when you click on Yellow it crashes. When you don't play anything before clicking on Yellow, most of the time it doesn't crash, so play something before and then Yellow. Make sure it comes from the Dilandau Resolver (e.g. by adding it to the queue to see the source of the song)

Actual Results:  
Tomahawk crashed cause of phonon-gst or gstreamer

Expected Results:  
no crash

Backtrace:

[Thread 0xa5c53b70 (LWP 11993) exited]
void AudioEngine::onStateChanged(Phonon::State, Phonon::State) 0 5 true
Phonon Error: "Invalid source type." 1
ASSERT: "d->connected" in file ../../phonon/streaminterface.cpp, line 89
 
Program received signal SIGABRT, Aborted.
0x00130416 in __kernel_vsyscall ()
(gdb) bt
#0  0x00130416 in __kernel_vsyscall ()
#1  0x02ecec8f in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2  0x02ed22b5 in __GI_abort () at abort.c:92
#3  0x02a4a416 in qt_message_output (msgType=QtFatalMsg, buf=0xa2e8b38 "ASSERT: \"d->connected\" in file ../../phonon/streaminterface.cpp, line 89") at global/qglobal.cpp:2306
#4  0x02a4a84b in qt_message (msgType=QtFatalMsg, msg=0x2bb6008 "ASSERT: \"%s\" in file %s, line %d", ap=0xbfffe114 "\"\324d") at global/qglobal.cpp:2352
#5  0x02a4a968 in qFatal (msg=0x2bb6008 "ASSERT: \"%s\" in file %s, line %d") at global/qglobal.cpp:2535
#6  0x02a4a9f5 in qt_assert (assertion=0x64d422 "d->connected", file=0x64d3a4 "../../phonon/streaminterface.cpp", line=89) at global/qglobal.cpp:2030
#7  0x00640fc8 in Phonon::StreamInterface::enoughData (this=0x9c97e30) at ../../phonon/streaminterface.cpp:89
#8  0x05162783 in Phonon::Gstreamer::StreamReader::unlock (this=0x9c97e28) at ../../gstreamer/streamreader.cpp:164
#9  0x0515e762 in Phonon::Gstreamer::phonon_src_unlock (basesrc=0x868c5f8) at ../../gstreamer/phononsrc.cpp:264
#10 0x036bc793 in gst_base_src_set_flushing (basesrc=0x868c5f8, flushing=1, live_play=0, unlock=1, playing=0x0) at gstbasesrc.c:2838
#11 0x036befb8 in gst_base_src_activate_push (pad=0x869c198, active=0) at gstbasesrc.c:2979
#12 0x03745648 in gst_pad_activate_push (pad=0x869c198, active=0) at gstpad.c:953
#13 0x037463e1 in gst_pad_set_active (pad=0x869c198, active=0) at gstpad.c:715
#14 0x0372291c in activate_pads (pad=0x869c198, ret=0xbfffe3bc, active=0xbfffe41c) at gstelement.c:2802
#15 0x03736cb3 in gst_iterator_fold (it=0xa3a5928, func=0x37228f0 <activate_pads>, ret=0xbfffe3bc, user_data=0xbfffe41c) at gstiterator.c:549
#16 0x0372283c in iterator_activate_fold_with_resync (iter=0xa3a5928, func=0x37228f0 <activate_pads>, user_data=0xbfffe41c) at gstelement.c:2834
#17 0x037253a1 in gst_element_pads_activate (element=0x868c5f8, active=0) at gstelement.c:2870
#18 0x03725749 in gst_element_change_state_func (element=0x868c5f8, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstelement.c:2960
#19 0x036c2933 in gst_base_src_change_state (element=0x868c5f8, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstbasesrc.c:3097
#20 0x0372777b in gst_element_change_state (element=0x868c5f8, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstelement.c:2718
#21 0x03728235 in gst_element_set_state_func (element=0x868c5f8, state=GST_STATE_READY) at gstelement.c:2674
#22 0x037274b1 in gst_element_set_state (element=0x868c5f8, state=GST_STATE_READY) at gstelement.c:2575
#23 0x03712856 in gst_bin_element_set_state (next=GST_STATE_READY, current=GST_STATE_READY, start_time=0, base_time=0, element=0x868c5f8, bin=0x8697040) at gstbin.c:2193
#24 gst_bin_change_state_func (element=0x8697040, transition=18) at gstbin.c:2489
#25 0x0374a550 in gst_pipeline_change_state (element=0x8697040, transition=18) at gstpipeline.c:482
#26 0x0372777b in gst_element_change_state (element=0x8697040, transition=18) at gstelement.c:2718
#27 0x03728235 in gst_element_set_state_func (element=0x8697040, state=GST_STATE_READY) at gstelement.c:2674
#28 0x037274b1 in gst_element_set_state (element=0x8697040, state=GST_STATE_READY) at gstelement.c:2575
#29 0x0515557d in Phonon::Gstreamer::MediaObject::setError (this=0x8690aa8, errorString=..., error=Phonon::FatalError) at ../../gstreamer/mediaobject.cpp:899
#30 0x05155723 in Phonon::Gstreamer::MediaObject::handleErrorMessage (this=0x8690aa8, gstMessage=0xa43d190) at ../../gstreamer/mediaobject.cpp:1483
#31 0x0515bd43 in Phonon::Gstreamer::MediaObject::qt_metacall (this=0x8690aa8, _c=QMetaObject::InvokeMetaMethod, _id=33, _a=0xab520748) at ./moc_mediaobject.cpp:194
#32 0x02b55bed in metacall (argv=0xab520748, idx=37, cl=QMetaObject::InvokeMetaMethod, object=0x8690aa8) at kernel/qmetaobject.cpp:237
#33 QMetaObject::metacall (object=0x8690aa8, cl=QMetaObject::InvokeMetaMethod, idx=37, argv=0xab520748) at kernel/qmetaobject.cpp:232
#34 0x02b60635 in QMetaCallEvent::placeMetaCall (this=0xa8590980, object=0x8690aa8) at kernel/qobject.cpp:535
#35 0x02b67b02 in QObject::event (this=0x8690aa8, e=0xa8590980) at kernel/qobject.cpp:1217
#36 0x01f05314 in notify_helper (e=0xa8590980, receiver=0x8690aa8, this=0x81f7480) at kernel/qapplication.cpp:4467
#37 QApplicationPrivate::notify_helper (this=0x81f7480, receiver=0x8690aa8, e=0xa8590980) at kernel/qapplication.cpp:4439
#38 0x01f0a6c3 in QApplication::notify (this=0xa8590980, receiver=0x8690aa8, e=0xa8590980) at kernel/qapplication.cpp:3867
#39 0x02b4f20e in QCoreApplication::notifyInternal (this=0xbfffefbc, receiver=0x8690aa8, event=0xa8590980) at kernel/qcoreapplication.cpp:731
#40 0x02b53003 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#41 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x81f7580) at kernel/qcoreapplication.cpp:1372
#42 0x02b5315c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#43 0x02b7d6a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#44 postEventSourceDispatch (s=0x81fa4d0) at kernel/qeventdispatcher_glib.cpp:277
#45 0x0386781f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#46 0x03867f50 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#47 0x038681ea in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#48 0x02b7dada in QEventDispatcherGlib::processEvents (this=0x81f8138, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#49 0x01fbcdea in QGuiEventDispatcherGlib::processEvents (this=0x81f8138, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x02b4e24d in QEventLoop::processEvents (this=0xbfffef34, flags=...) at kernel/qeventloop.cpp:149
#51 0x02b4e491 in QEventLoop::exec (this=0xbfffef34, flags=...) at kernel/qeventloop.cpp:201
#52 0x02b5320d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#53 0x01f02eb4 in QApplication::exec () at kernel/qapplication.cpp:3741
#54 0x080963e9 in main (argc=1, argv=0xbffff134) at /home/t95012/src/tomahawk/src/main.cpp:64
(gdb)