Chris@0: 
Chris@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@0:     Sonic Visualiser
Chris@0:     An audio file viewer and annotation editor.
Chris@0:     Centre for Digital Music, Queen Mary, University of London.
Chris@0:     This file copyright 2006 Chris Cannam.
Chris@0:     
Chris@0:     This program is free software; you can redistribute it and/or
Chris@0:     modify it under the terms of the GNU General Public License as
Chris@0:     published by the Free Software Foundation; either version 2 of the
Chris@0:     License, or (at your option) any later version.  See the file
Chris@0:     COPYING included with this distribution for more information.
Chris@0: */
Chris@0: 
Chris@0: #include "RealTimePluginTransform.h"
Chris@0: 
Chris@0: #include "plugin/RealTimePluginFactory.h"
Chris@0: #include "plugin/RealTimePluginInstance.h"
Chris@0: #include "plugin/PluginXml.h"
Chris@0: 
Chris@1: #include "data/model/Model.h"
Chris@1: #include "data/model/SparseTimeValueModel.h"
Chris@1: #include "data/model/DenseTimeValueModel.h"
Chris@0: 
Chris@0: #include <iostream>
Chris@0: 
Chris@0: RealTimePluginTransform::RealTimePluginTransform(Model *inputModel,
Chris@0:                                                  QString pluginId,
Chris@0:                                                  int channel,
Chris@0:                                                  QString configurationXml,
Chris@0:                                                  QString units,
Chris@26:                                                  int output,
Chris@26:                                                  size_t blockSize) :
Chris@0:     Transform(inputModel),
Chris@0:     m_plugin(0),
Chris@0:     m_channel(channel),
Chris@26:     m_outputNo(output),
Chris@26:     m_blockSize(blockSize)
Chris@0: {
Chris@26:     if (!m_blockSize) m_blockSize = 1024;
Chris@26: 
Chris@0:     std::cerr << "RealTimePluginTransform::RealTimePluginTransform: plugin " << pluginId.toStdString() << ", output " << output << std::endl;
Chris@0: 
Chris@0:     RealTimePluginFactory *factory =
Chris@0: 	RealTimePluginFactory::instanceFor(pluginId);
Chris@0: 
Chris@0:     if (!factory) {
Chris@0: 	std::cerr << "RealTimePluginTransform: No factory available for plugin id \""
Chris@0: 		  << pluginId.toStdString() << "\"" << std::endl;
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0:     DenseTimeValueModel *input = getInput();
Chris@0:     if (!input) return;
Chris@0: 
Chris@0:     m_plugin = factory->instantiatePlugin(pluginId, 0, 0, m_input->getSampleRate(),
Chris@26:                                           m_blockSize,
Chris@0:                                           input->getChannelCount());
Chris@0: 
Chris@0:     if (!m_plugin) {
Chris@0: 	std::cerr << "RealTimePluginTransform: Failed to instantiate plugin \""
Chris@0: 		  << pluginId.toStdString() << "\"" << std::endl;
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@0:     if (configurationXml != "") {
Chris@0:         PluginXml(m_plugin).setParametersFromXml(configurationXml);
Chris@0:     }
Chris@0: 
Chris@0:     if (m_outputNo >= m_plugin->getControlOutputCount()) {
Chris@0:         std::cerr << "RealTimePluginTransform: Plugin has fewer than desired " << m_outputNo << " control outputs" << std::endl;
Chris@0:         return;
Chris@0:     }
Chris@0: 	
Chris@0:     SparseTimeValueModel *model = new SparseTimeValueModel
Chris@26:         (input->getSampleRate(), m_blockSize, 0.0, 0.0, false);
Chris@0: 
Chris@0:     if (units != "") model->setScaleUnits(units);
Chris@0: 
Chris@0:     m_output = model;
Chris@0: }
Chris@0: 
Chris@0: RealTimePluginTransform::~RealTimePluginTransform()
Chris@0: {
Chris@0:     delete m_plugin;
Chris@0: }
Chris@0: 
Chris@0: DenseTimeValueModel *
Chris@0: RealTimePluginTransform::getInput()
Chris@0: {
Chris@0:     DenseTimeValueModel *dtvm =
Chris@0: 	dynamic_cast<DenseTimeValueModel *>(getInputModel());
Chris@0:     if (!dtvm) {
Chris@0: 	std::cerr << "RealTimePluginTransform::getInput: WARNING: Input model is not conformable to DenseTimeValueModel" << std::endl;
Chris@0:     }
Chris@0:     return dtvm;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: RealTimePluginTransform::run()
Chris@0: {
Chris@0:     DenseTimeValueModel *input = getInput();
Chris@0:     if (!input) return;
Chris@0: 
Chris@0:     SparseTimeValueModel *model = dynamic_cast<SparseTimeValueModel *>(m_output);
Chris@0:     if (!model) return;
Chris@0: 
Chris@0:     if (m_outputNo >= m_plugin->getControlOutputCount()) return;
Chris@0: 
Chris@0:     size_t sampleRate = input->getSampleRate();
Chris@0:     int channelCount = input->getChannelCount();
Chris@0:     if (m_channel != -1) channelCount = 1;
Chris@0: 
Chris@0:     size_t blockSize = m_plugin->getBufferSize();
Chris@0: 
Chris@0:     float **buffers = m_plugin->getAudioInputBuffers();
Chris@0: 
Chris@0:     size_t startFrame = m_input->getStartFrame();
Chris@0:     size_t   endFrame = m_input->getEndFrame();
Chris@0:     size_t blockFrame = startFrame;
Chris@0: 
Chris@0:     size_t prevCompletion = 0;
Chris@0: 
Chris@0:     int i = 0;
Chris@0: 
Chris@0:     while (blockFrame < endFrame) {
Chris@0: 
Chris@0: 	size_t completion =
Chris@0: 	    (((blockFrame - startFrame) / blockSize) * 99) /
Chris@0: 	    (   (endFrame - startFrame) / blockSize);
Chris@0: 
Chris@0: 	size_t got = 0;
Chris@0: 
Chris@0: 	if (channelCount == 1) {
Chris@0: 	    got = input->getValues
Chris@0: 		(m_channel, blockFrame, blockFrame + blockSize, buffers[0]);
Chris@0: 	    while (got < blockSize) {
Chris@0: 		buffers[0][got++] = 0.0;
Chris@0: 	    }
Chris@0:             if (m_channel == -1 && channelCount > 1) {
Chris@0:                 // use mean instead of sum, as plugin input
Chris@0:                 for (size_t i = 0; i < got; ++i) {
Chris@0:                     buffers[0][i] /= channelCount;
Chris@0:                 }
Chris@0:             }                
Chris@0: 	} else {
Chris@0: 	    for (size_t ch = 0; ch < channelCount; ++ch) {
Chris@0: 		got = input->getValues
Chris@0: 		    (ch, blockFrame, blockFrame + blockSize, buffers[ch]);
Chris@0: 		while (got < blockSize) {
Chris@0: 		    buffers[ch][got++] = 0.0;
Chris@0: 		}
Chris@0: 	    }
Chris@0: 	}
Chris@0: 
Chris@0:         m_plugin->run(Vamp::RealTime::frame2RealTime(blockFrame, sampleRate));
Chris@0: 
Chris@0:         float value = m_plugin->getControlOutputValue(m_outputNo);
Chris@0: 
Chris@0: 	model->addPoint(SparseTimeValueModel::Point
Chris@0:                         (blockFrame - m_plugin->getLatency(), value, ""));
Chris@0: 
Chris@0: 	if (blockFrame == startFrame || completion > prevCompletion) {
Chris@0: 	    model->setCompletion(completion);
Chris@0: 	    prevCompletion = completion;
Chris@0: 	}
Chris@0:         
Chris@0: 	blockFrame += blockSize;
Chris@0:     }
Chris@0:     
Chris@0:     model->setCompletion(100);
Chris@0: }
Chris@0: