--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/phonon/qt7/audioconnection.mm	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,152 @@
+/*  This file is part of the KDE project.
+
+    Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+    This library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 2.1 or 3 of the License.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this library.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "audioconnection.h"
+#include "medianode.h"
+#include "audionode.h"
+#include "audiograph.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace QT7
+{
+
+    AudioConnection::AudioConnection()
+        :   m_source(0), m_sourceAudioNode(0), m_sourceOutputBus(0),
+            m_sink(0), m_sinkAudioNode(0), m_sinkInputBus(0),
+            m_sourceChannelLayout(0), m_sinkChannelLayout(0),
+            m_hasSourceSpecification(false), m_hasSinkSpecification(false), m_connected(false)
+    {}
+
+    AudioConnection::AudioConnection(MediaNode *source, int output, MediaNode *sink, int input)
+        : m_source(source), m_sourceAudioNode(source->m_audioNode), m_sourceOutputBus(output),
+        m_sink(sink), m_sinkAudioNode(sink->m_audioNode), m_sinkInputBus(input),
+        m_sourceChannelLayout(0), m_sinkChannelLayout(0),
+        m_hasSourceSpecification(false), m_hasSinkSpecification(false), m_connected(false)
+    {}
+
+    AudioConnection::AudioConnection(MediaNode *sink)
+        : m_source(0), m_sourceAudioNode(0), m_sourceOutputBus(0),
+        m_sink(sink), m_sinkAudioNode(sink->m_audioNode), m_sinkInputBus(0),
+        m_sourceChannelLayout(0), m_sinkChannelLayout(0), m_connected(false)
+    {}
+
+    AudioConnection::AudioConnection(AudioNode *source, int output, AudioNode *sink, int input)
+        : m_source(0), m_sourceAudioNode(source), m_sourceOutputBus(output),
+        m_sink(0), m_sinkAudioNode(sink), m_sinkInputBus(input),
+        m_sourceChannelLayout(0), m_sinkChannelLayout(0),
+        m_hasSourceSpecification(false), m_hasSinkSpecification(false), m_connected(false)
+    {}
+
+    AudioConnection::AudioConnection(AudioNode *sink)
+        : m_source(0), m_sourceAudioNode(0), m_sourceOutputBus(0),
+        m_sink(0), m_sinkAudioNode(sink), m_sinkInputBus(0),
+        m_sourceChannelLayout(0), m_sinkChannelLayout(0), m_connected(false)
+    {}
+
+    AudioConnection::~AudioConnection()
+    {
+        freeMemoryAllocations();
+    }
+
+    void AudioConnection::freeMemoryAllocations()
+    {
+        if (m_sinkChannelLayout && m_sourceChannelLayout != m_sinkChannelLayout)
+            free(m_sinkChannelLayout);
+        if (m_sourceChannelLayout)
+            free(m_sourceChannelLayout);
+        m_sinkChannelLayout = 0;
+        m_sourceChannelLayout = 0;
+    }
+
+    bool AudioConnection::updateStreamSpecification()
+    {
+        m_hasSourceSpecification = false;
+        m_hasSinkSpecification = false;
+        freeMemoryAllocations();
+
+        bool updateOk;
+        if (m_sourceAudioNode){
+            updateOk = m_sourceAudioNode->fillInStreamSpecification(this, AudioNode::Source);
+            if (!updateOk)
+                return false;
+            updateOk = m_sourceAudioNode->setStreamSpecification(this, AudioNode::Source);
+            if (!updateOk)
+                return false;
+        }
+        updateOk = m_sinkAudioNode->fillInStreamSpecification(this, AudioNode::Sink);
+        if (!updateOk)
+            return false;
+        updateOk = m_sinkAudioNode->setStreamSpecification(this, AudioNode::Sink);
+        if (!updateOk)
+            return false;
+        return true;
+    }
+
+    bool AudioConnection::connect(AudioGraph *graph)
+    {
+        if (m_connected || !m_sourceAudioNode)
+            return true;
+
+        DEBUG_AUDIO_GRAPH("Connection" << int(this) << "connect"
+        << int(m_sourceAudioNode) << m_sourceOutputBus << "->"
+        << int(m_sinkAudioNode) << m_sinkInputBus)
+
+        AUNode sourceOut = m_sourceAudioNode->getOutputAUNode();
+        AUNode sinkIn = m_sinkAudioNode->getInputAUNode();
+        OSStatus err = AUGraphConnectNodeInput(graph->audioGraphRef(), sourceOut, m_sourceOutputBus, sinkIn, m_sinkInputBus);
+        m_connected = (err == noErr) ? true : false;
+        return m_connected;
+    }
+
+    bool AudioConnection::disconnect(AudioGraph *graph)
+    {
+        if (!m_connected || !m_sourceAudioNode)
+            return true;
+
+        DEBUG_AUDIO_GRAPH("Connection" << int(this) << "disconnect"
+        << int(m_sourceAudioNode) << m_sourceOutputBus << "->"
+        << int(m_sinkAudioNode) << m_sinkInputBus)
+
+        AUNode sinkIn = m_sinkAudioNode->getInputAUNode();
+	    AUGraphDisconnectNodeInput(graph->audioGraphRef(), sinkIn, m_sinkInputBus);
+        m_connected = false;
+        return true;
+    }
+
+    void AudioConnection::invalidate()
+    {
+        m_connected = false;
+    }
+
+    bool AudioConnection::isBetween(MediaNode *source, MediaNode *sink){
+        return (source == m_source) && (sink == m_sink);
+    }
+
+    bool AudioConnection::isValid(){
+        return (m_sourceAudioNode != 0);
+    }
+
+    bool AudioConnection::isSinkOnly(){
+        return (m_sourceAudioNode == 0) && (m_sinkAudioNode != 0);
+    }
+
+}} //namespace Phonon::QT7
+
+QT_END_NAMESPACE