bool MediaPlayerPrivateMediaFoundation::addBranchToPartialTopology(int stream)
{
// Get the stream descriptor for this stream.
COMPtr<IMFStreamDescriptor> sourceSD;
BOOL selected = FALSE;
if (FAILED(m_sourcePD->GetStreamDescriptorByIndex(stream, &selected, &sourceSD)))
return false;
// Create the topology branch only if the stream is selected.
// Otherwise, do nothing.
if (!selected)
return true;
// Create a source node for this stream.
COMPtr<IMFTopologyNode> sourceNode;
if (!createSourceStreamNode(sourceSD, sourceNode))
return false;
COMPtr<IMFTopologyNode> outputNode;
if (!createOutputNode(sourceSD, outputNode))
return false;
// Add both nodes to the topology.
if (FAILED(m_topology->AddNode(sourceNode.get())))
return false;
if (FAILED(m_topology->AddNode(outputNode.get())))
return false;
// Connect the source node to the output node.
if (FAILED(sourceNode->ConnectOutput(0, outputNode.get(), 0)))
return false;
return true;
}
VerticalPatchBlock::VerticalPatchBlock(MainController* controller, QString uid)
: BlockBase(controller, uid)
{
// prepare nodes:
m_inputNode = createInputNode("inputNode");
m_outputNode1 = createOutputNode("outputNode1");
m_outputNode2 = createOutputNode("outputNode2");
// set initial requested size:
updateRequestedSize();
// connect signals and slots:
connect(m_outputNode1, SIGNAL(requestedSizeChanged()), this, SLOT(updateRequestedSize()));
connect(m_outputNode2, SIGNAL(requestedSizeChanged()), this, SLOT(updateRequestedSize()));
connect(m_inputNode, SIGNAL(dataChanged()), this, SLOT(updateOutput()));
}
AudioPlaybackBlock::AudioPlaybackBlock(MainController* controller, QString uid)
: BlockBase(controller, uid)
, m_playNode(nullptr)
, m_pauseNode(nullptr)
, m_toggleNode(nullptr)
, m_activeNode(nullptr)
, m_endNode(nullptr)
, m_positionNode(nullptr)
, m_filePath("")
, m_lastPlayNodeValue(0.0)
, m_lastPauseNodeValue(0.0)
, m_lastToggleNodeValue(0.0)
, m_alwaysStartAtBegin(false)
, m_loop(false)
, m_toggleMode(true)
, m_player(this)
{
m_widthIsResizable = true;
m_playNode = createInputNode("playNode");
m_pauseNode = createInputNode("pauseNode");
m_toggleNode = createInputNode("toggleNode");
connect(m_playNode, SIGNAL(dataChanged()), this, SLOT(onPlayNodeValueChanged()));
connect(m_pauseNode, SIGNAL(dataChanged()), this, SLOT(onPauseNodeValueChanged()));
connect(m_toggleNode, SIGNAL(dataChanged()), this, SLOT(onToggleNodeValueChanged()));
m_activeNode = createOutputNode("activeNode");
m_endNode = createOutputNode("endNode");
m_positionNode = createOutputNode("positionNode");
// setup Timer to be able to send a short pulse when end of file is reached:
m_endPulseTimer.setSingleShot(true);
m_endPulseTimer.setInterval(100);
connect(&m_endPulseTimer, SIGNAL(timeout()), this, SLOT(onEndPulseTimeout()));
connect(&m_player, SIGNAL(endOfFile()), this, SLOT(onEndOfFile()));
connect(&m_player, SIGNAL(isPlayingChanged()), this, SIGNAL(isPlayingChanged()));
connect(&m_player, SIGNAL(isPlayingChanged()), this, SLOT(onIsPlayingChanged()));
connect(&m_player, SIGNAL(positionChanged()), this, SIGNAL(playbackPositionChanged()));
connect(&m_player, SIGNAL(positionChanged()), this, SLOT(onPlaybackPositionChanged()));
connect(&m_player, SIGNAL(lengthChanged()), this, SIGNAL(lengthChanged()));
connect(&m_waveform, SIGNAL(pointsChanged()), this, SIGNAL(waveformChanged()));
connect(&m_waveform, SIGNAL(availableChanged()), this, SIGNAL(waveformChanged()));
}
