#0  0x00007f37cf592e79 in snd_pcm_ioplug_close (pcm=<value optimized out>)
    at pcm_ioplug.c:743
	io = (ioplug_priv_t *) 0x1666ac0
#1  0x00007f37cf555b55 in snd_pcm_close (pcm=0x1841c80) at pcm.c:706
	res = 0
	err = <value optimized out>
	__PRETTY_FUNCTION__ = "snd_pcm_close"
#2  0x00007f37ccd646ff in gst_alsasink_close (asink=<value optimized out>)
    at gstalsasink.c:804
	alsa = <value optimized out>
	err = <value optimized out>
	__PRETTY_FUNCTION__ = "gst_alsasink_close"
#3  0x00007f37cdfdc3c6 in gst_audioringbuffer_close_device (
    buf=<value optimized out>) at gstaudiosink.c:365
	result = 1
	__FUNCTION__ = "gst_audioringbuffer_close_device"
#4  0x00007f37cdfcfecb in gst_ring_buffer_close_device (buf=0x1818340)
    at gstringbuffer.c:714
	res = <value optimized out>
	__PRETTY_FUNCTION__ = "gst_ring_buffer_close_device"
	__FUNCTION__ = "gst_ring_buffer_close_device"
#5  0x00007f37cdfd7ca6 in gst_base_audio_sink_change_state (
    element=<value optimized out>, transition=GST_STATE_CHANGE_READY_TO_NULL)
    at gstbaseaudiosink.c:1879
	ret = GST_STATE_CHANGE_SUCCESS
	sink = (GstBaseAudioSink *) 0x166ce80
	__FUNCTION__ = "gst_base_audio_sink_change_state"
#6  0x00007f37ce87b18c in gst_element_change_state (element=0x1834800, 
    transition=0) at gstelement.c:2548
	ret = <value optimized out>
	__PRETTY_FUNCTION__ = "gst_element_change_state"
#7  0x00007f37ce87e1bb in gst_element_set_state_func (element=0x166ce80, 
    state=GST_STATE_NULL) at gstelement.c:2504
	current = GST_STATE_READY
	next = GST_STATE_NULL
	ret = <value optimized out>
	old_ret = GST_STATE_CHANGE_SUCCESS
	__PRETTY_FUNCTION__ = "gst_element_set_state_func"
#8  0x00007f37cf0669aa in ?? ()
   from /usr/lib/qt4/plugins/phonon_backend/phonon_gstreamer.so
No symbol table info available.
#9  0x00007f37dd351010 in ?? () from /usr/lib/libphonon.so.4
No symbol table info available.
#10 0x00007f37dd3516f0 in ?? () from /usr/lib/libphonon.so.4
No symbol table info available.
#11 0x00007f37dd34deea in ?? () from /usr/lib/libphonon.so.4
No symbol table info available.
#12 0x00007f37dd34e59d in Phonon::AudioOutput::AudioOutput ()
   from /usr/lib/libphonon.so.4
No symbol table info available.
#13 0x000000000040d101 in _start ()
No symbol table info available.