PulseAudio + Phonon curious issue

Harald Fernengel harry at kdevelop.org
Wed Jan 20 13:35:04 GMT 2010


On Thursday 14 January 2010 00:15:27 Colin Guthrie wrote:
> 'Twas brillig, and Colin Guthrie at 13/01/10 10:29 did gyre and gimble:
> > I'll try and find a fix (tho' I am by no means a gstreamer coder - bit
> > of a noob there, but I'll try my best seeing as there is not exactly a
> > queue of people willing to work on the phonon-gstreamer backend right
> > now :()
> As with all the most confusing bugs the fix turned out to be trivial.
> Not sure if it will introduce other potential problems tho', so would
> appreciate feedback before I commit it upstream.
> I've created a Mandriva cooker pacakge and as gstreamer is our default
> backend I'll hopefully know fairly quickly if it's introduced a problem!!
> Patch can be found here:
> http://svn.mandriva.com/cgi-bin/viewvc.cgi/packages/cooker/phonon/current/S
> OURCES/phonon-4.3.80-fix-gstreamer-pulseaudio-deadlock.patch?revision=49107
> 8&view=markup
> Please let me know how you get on.

seems that m_resetNeeded needs to be set to true when stopping media:

diff --git a/src/3rdparty/phonon/gstreamer/mediaobject.cpp 
index c2597b5..ceb1de8 100644
--- a/src/3rdparty/phonon/gstreamer/mediaobject.cpp
+++ b/src/3rdparty/phonon/gstreamer/mediaobject.cpp
@@ -622,6 +622,7 @@ void MediaObject::setState(State newstate)
         } else if (gst_element_set_state(m_pipeline, GST_STATE_READY) != 
             m_pendingState = Phonon::StoppedState;
+            m_resetNeeded = true;
         } else {
             m_backend->logMessage("phonon state request failed", 
Backend::Info, this);

Otherwise play-stop-play would yield an error message.

Not sure whether there are other places where we need to set m_resetNeeded to 
true - Colin, could you review please?


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