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/* This file is part of the KDE project.
Copyright (C) 2012 Digia Plc 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
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