comparison transform/RealTimePluginTransform.cpp @ 64:4d59dc469b0f

* Ensure plugin parameters for a transform are saved in the .sv file and
  restored in case the plugin has to be run again
* Make plugin dialog offer options for mixdown/single-channel use if the
  file has more than one channels but the plugin only accepts one
* Fix incorrect samplerate playback for second file loaded if its samplerate
  differed from first
* Add Zoom to Fit and Select Visible Range menu options, split out Import
  Audio into main model and secondary model options
* Add stubs for cut, copy and paste operations (not implemented yet)

 
 #include <iostream>
 
 RealTimePluginTransform::RealTimePluginTransform(Model *inputModel,
                                                  QString pluginId,
+                                                 int channel,
                                                  QString configurationXml,
                                                  QString units,
                                                  int output) :
     Transform(inputModel),
     m_plugin(0),
+    m_channel(channel),
     m_outputNo(output)
 {
     std::cerr << "RealTimePluginTransform::RealTimePluginTransform: plugin " << pluginId.toStdString() << ", output " << output << std::endl;
 
     RealTimePluginFactory *factory =

 
     if (m_outputNo >= m_plugin->getControlOutputCount()) return;
 
     size_t sampleRate = input->getSampleRate();
     int channelCount = input->getChannelCount();
+    if (m_channel != -1) channelCount = 1;
+
     size_t blockSize = m_plugin->getBufferSize();
 
     float **buffers = m_plugin->getAudioInputBuffers();
 
     size_t startFrame = m_input->getStartFrame();

 
 	size_t got = 0;
 
 	if (channelCount == 1) {
 	    got = input->getValues
-		(-1, blockFrame, blockFrame + blockSize, buffers[0]);
+		(m_channel, blockFrame, blockFrame + blockSize, buffers[0]);
 	    while (got < blockSize) {
 		buffers[0][got++] = 0.0;
 	    }
 	} else {
 	    for (size_t ch = 0; ch < channelCount; ++ch) {