1 files changed, 18 insertions, 37 deletions

diff --git a/src/3rdparty/phonon/ds9/mediaobject.cpp b/src/3rdparty/phonon/ds9/mediaobject.cpp
index 10782c251..b163ad4dd 100644
--- a/src/3rdparty/phonon/ds9/mediaobject.cpp
+++ b/src/3rdparty/phonon/ds9/mediaobject.cpp
@@ -57,24 +57,6 @@ namespace Phonon
         {
         }
 
-        WorkerThread::Work WorkerThread::dequeueWork()
-        {
-            QMutexLocker locker(&m_mutex);
-            if (m_finished) {
-                return Work();
-            }
-            Work ret = m_queue.dequeue();
-
-            //we ensure to have the wait condition in the right state
-            if (m_queue.isEmpty()) {
-                m_waitCondition.reset();
-            } else {
-                m_waitCondition.set();
-            }
-
-            return ret;
-        }
-
         void WorkerThread::run()
         {
             while (m_finished == false) {
@@ -88,11 +70,6 @@ namespace Phonon
                 }
                 DWORD result = ::WaitForMultipleObjects(count, handles, FALSE, INFINITE);
                 if (result == WAIT_OBJECT_0) {
-                    if (m_finished) {
-                        //that's the end of the thread execution
-                        return;
-                    }
-
                     handleTask();
                 } else {
                     //this is the event management
@@ -199,22 +176,25 @@ namespace Phonon
 
         void WorkerThread::handleTask()
         {
-            const Work w = dequeueWork();
-
-            if (m_finished) {
+            QMutexLocker locker(&m_mutex);
+            if (m_finished || m_queue.isEmpty()) {
                 return;
             }
 
-            HRESULT hr = S_OK;
+            const Work w = m_queue.dequeue();
 
-            {
-                QMutexLocker locker(&m_mutex);
-                m_currentRender = w.graph;
-                m_currentRenderId = w.id;
+            //we ensure to have the wait condition in the right state
+            if (m_queue.isEmpty()) {
+                m_waitCondition.reset();
+            } else {
+                m_waitCondition.set();
             }
 
+            HRESULT hr = S_OK;
+
+            m_currentRender = w.graph;
+			m_currentRenderId = w.id;
             if (w.task == ReplaceGraph) {
-                QMutexLocker locker(&m_mutex);
                 int index = -1;
                 for(int i = 0; i < FILTER_COUNT; ++i) {
                     if (m_graphHandle[i].graph == w.oldGraph) {
@@ -237,6 +217,9 @@ namespace Phonon
                     m_graphHandle[index].handle = h;
                 }
             } else if (w.task == Render) {
+                //we need to unlock here because the use might trigger a call to abort
+                //which uses the same mutex
+                locker.unlock();
                 if (w.filter) {
                     //let's render pins
                     w.graph->AddFilter(w.filter, 0);
@@ -255,6 +238,7 @@ namespace Phonon
                 if (hr != E_ABORT) {
                     emit asyncRenderFinished(w.id, hr, w.graph);
                 }
+                locker.relock();
             } else if (w.task == Seek) {
                 //that's a seekrequest
                 ComPointer<IMediaSeeking> mediaSeeking(w.graph, IID_IMediaSeeking);
@@ -327,11 +311,8 @@ namespace Phonon
                 }
             }
 
-            {
-                QMutexLocker locker(&m_mutex);
-                m_currentRender = Graph();
-                m_currentRenderId = 0;
-            }
+            m_currentRender = Graph();
+            m_currentRenderId = 0;
         }
 
         void WorkerThread::abortCurrentRender(qint16 renderId)