view transform/TransformFactory.cpp @ 97:398889687f3d

* Add separate colour mapping unit; use it in spectrogram (colour 3d plot to follow)
* Add another colour scheme resembling that of a noted commercial application

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam and QMUL.
   
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#include "TransformFactory.h"

#include "FeatureExtractionPluginTransform.h"
#include "RealTimePluginTransform.h"

#include "plugin/FeatureExtractionPluginFactory.h"
#include "plugin/RealTimePluginFactory.h"
#include "plugin/PluginXml.h"

#include "widgets/PluginParameterDialog.h"

#include "data/model/DenseTimeValueModel.h"

#include "vamp-sdk/PluginHostAdapter.h"

#include "sv/audioio/AudioCallbackPlaySource.h" //!!! shouldn't include here

#include <iostream>
#include <set>

#include <QRegExp>

TransformFactory *
TransformFactory::m_instance = new TransformFactory;

TransformFactory *
TransformFactory::getInstance()
{
    return m_instance;
}

TransformFactory::~TransformFactory()
{
}

TransformFactory::TransformList
TransformFactory::getAllTransforms()
{
    if (m_transforms.empty()) populateTransforms();

    std::set<TransformDesc> dset;
    for (TransformDescriptionMap::const_iterator i = m_transforms.begin();
	 i != m_transforms.end(); ++i) {
	dset.insert(i->second);
    }

    TransformList list;
    for (std::set<TransformDesc>::const_iterator i = dset.begin();
	 i != dset.end(); ++i) {
	list.push_back(*i);
    }

    return list;
}

std::vector<QString>
TransformFactory::getAllTransformTypes()
{
    if (m_transforms.empty()) populateTransforms();

    std::set<QString> types;
    for (TransformDescriptionMap::const_iterator i = m_transforms.begin();
	 i != m_transforms.end(); ++i) {
        types.insert(i->second.type);
    }

    std::vector<QString> rv;
    for (std::set<QString>::iterator i = types.begin(); i != types.end(); ++i) {
        rv.push_back(*i);
    }

    return rv;
}

std::vector<QString>
TransformFactory::getTransformCategories(QString transformType)
{
    if (m_transforms.empty()) populateTransforms();

    std::set<QString> categories;
    for (TransformDescriptionMap::const_iterator i = m_transforms.begin();
         i != m_transforms.end(); ++i) {
        if (i->second.type == transformType) {
            categories.insert(i->second.category);
        }
    }

    bool haveEmpty = false;
    
    std::vector<QString> rv;
    for (std::set<QString>::iterator i = categories.begin(); 
         i != categories.end(); ++i) {
        if (*i != "") rv.push_back(*i);
        else haveEmpty = true;
    }

    if (haveEmpty) rv.push_back(""); // make sure empty category sorts last

    return rv;
}

std::vector<QString>
TransformFactory::getTransformMakers(QString transformType)
{
    if (m_transforms.empty()) populateTransforms();

    std::set<QString> makers;
    for (TransformDescriptionMap::const_iterator i = m_transforms.begin();
         i != m_transforms.end(); ++i) {
        if (i->second.type == transformType) {
            makers.insert(i->second.maker);
        }
    }

    bool haveEmpty = false;
    
    std::vector<QString> rv;
    for (std::set<QString>::iterator i = makers.begin(); 
         i != makers.end(); ++i) {
        if (*i != "") rv.push_back(*i);
        else haveEmpty = true;
    }

    if (haveEmpty) rv.push_back(""); // make sure empty category sorts last

    return rv;
}

void
TransformFactory::populateTransforms()
{
    TransformDescriptionMap transforms;

    populateFeatureExtractionPlugins(transforms);
    populateRealTimePlugins(transforms);

    // disambiguate plugins with similar names

    std::map<QString, int> descriptions;
    std::map<QString, QString> pluginSources;
    std::map<QString, QString> pluginMakers;

    for (TransformDescriptionMap::iterator i = transforms.begin();
         i != transforms.end(); ++i) {

        TransformDesc desc = i->second;

        QString td = desc.description;
        QString tn = td.section(": ", 0, 0);
        QString pn = desc.name.section(":", 1, 1);

        if (pluginSources.find(tn) != pluginSources.end()) {
            if (pluginSources[tn] != pn && pluginMakers[tn] != desc.maker) {
                ++descriptions[tn];
            }
        } else {
            ++descriptions[tn];
            pluginSources[tn] = pn;
            pluginMakers[tn] = desc.maker;
        }
    }

    std::map<QString, int> counts;
    m_transforms.clear();

    for (TransformDescriptionMap::iterator i = transforms.begin();
         i != transforms.end(); ++i) {

        TransformDesc desc = i->second;
	QString name = desc.name;
        QString maker = desc.maker;

        QString td = desc.description;
        QString tn = td.section(": ", 0, 0);
        QString to = td.section(": ", 1);

	if (descriptions[tn] > 1) {
            maker.replace(QRegExp(tr(" [\\(<].*$")), "");
	    tn = QString("%1 [%2]").arg(tn).arg(maker);
	}

        if (to != "") {
            desc.description = QString("%1: %2").arg(tn).arg(to);
        } else {
            desc.description = tn;
        }

	m_transforms[name] = desc;
    }	    
}

void
TransformFactory::populateFeatureExtractionPlugins(TransformDescriptionMap &transforms)
{
    std::vector<QString> plugs =
	FeatureExtractionPluginFactory::getAllPluginIdentifiers();

    for (size_t i = 0; i < plugs.size(); ++i) {

	QString pluginId = plugs[i];

	FeatureExtractionPluginFactory *factory =
	    FeatureExtractionPluginFactory::instanceFor(pluginId);

	if (!factory) {
	    std::cerr << "WARNING: TransformFactory::populateTransforms: No feature extraction plugin factory for instance " << pluginId.toLocal8Bit().data() << std::endl;
	    continue;
	}

	Vamp::Plugin *plugin = 
	    factory->instantiatePlugin(pluginId, 48000);

	if (!plugin) {
	    std::cerr << "WARNING: TransformFactory::populateTransforms: Failed to instantiate plugin " << pluginId.toLocal8Bit().data() << std::endl;
	    continue;
	}
		
	QString pluginDescription = plugin->getDescription().c_str();
        QString category = factory->getPluginCategory(pluginId);

	Vamp::Plugin::OutputList outputs =
	    plugin->getOutputDescriptors();

	for (size_t j = 0; j < outputs.size(); ++j) {

	    QString transformName = QString("%1:%2")
		    .arg(pluginId).arg(outputs[j].name.c_str());

	    QString userDescription;
            QString friendlyName;
            QString units = outputs[j].unit.c_str();

	    if (outputs.size() == 1) {
		userDescription = pluginDescription;
                friendlyName = pluginDescription;
	    } else {
		userDescription = QString("%1: %2")
		    .arg(pluginDescription)
		    .arg(outputs[j].description.c_str());
                friendlyName = outputs[j].description.c_str();
	    }

            bool configurable = (!plugin->getPrograms().empty() ||
                                 !plugin->getParameterDescriptors().empty());

	    transforms[transformName] = 
                TransformDesc(tr("Analysis"),
                              category,
                              transformName,
                              userDescription,
                              friendlyName,
                              plugin->getMaker().c_str(),
                              units,
                              configurable);
	}
    }
}

void
TransformFactory::populateRealTimePlugins(TransformDescriptionMap &transforms)
{
    std::vector<QString> plugs =
	RealTimePluginFactory::getAllPluginIdentifiers();

    static QRegExp unitRE("[\\[\\(]([A-Za-z0-9/]+)[\\)\\]]$");

    for (size_t i = 0; i < plugs.size(); ++i) {
        
	QString pluginId = plugs[i];

        RealTimePluginFactory *factory =
            RealTimePluginFactory::instanceFor(pluginId);

	if (!factory) {
	    std::cerr << "WARNING: TransformFactory::populateTransforms: No real time plugin factory for instance " << pluginId.toLocal8Bit().data() << std::endl;
	    continue;
	}

        const RealTimePluginDescriptor *descriptor =
            factory->getPluginDescriptor(pluginId);

        if (!descriptor) {
	    std::cerr << "WARNING: TransformFactory::populateTransforms: Failed to query plugin " << pluginId.toLocal8Bit().data() << std::endl;
	    continue;
	}
	
//!!!        if (descriptor->controlOutputPortCount == 0 ||
//            descriptor->audioInputPortCount == 0) continue;

//        std::cout << "TransformFactory::populateRealTimePlugins: plugin " << pluginId.toStdString() << " has " << descriptor->controlOutputPortCount << " control output ports, " << descriptor->audioOutputPortCount << " audio outputs, " << descriptor->audioInputPortCount << " audio inputs" << std::endl;
	
	QString pluginDescription = descriptor->name.c_str();
        QString category = factory->getPluginCategory(pluginId);
        bool configurable = (descriptor->parameterCount > 0);

        if (descriptor->audioInputPortCount > 0) {

            for (size_t j = 0; j < descriptor->controlOutputPortCount; ++j) {

                QString transformName = QString("%1:%2").arg(pluginId).arg(j);
                QString userDescription;
                QString units;

                if (j < descriptor->controlOutputPortNames.size() &&
                    descriptor->controlOutputPortNames[j] != "") {

                    QString portName = descriptor->controlOutputPortNames[j].c_str();

                    userDescription = tr("%1: %2")
                        .arg(pluginDescription)
                        .arg(portName);

                    if (unitRE.indexIn(portName) >= 0) {
                        units = unitRE.cap(1);
                    }

                } else if (descriptor->controlOutputPortCount > 1) {

                    userDescription = tr("%1: Output %2")
                        .arg(pluginDescription)
                        .arg(j + 1);

                } else {

                    userDescription = pluginDescription;
                }


                transforms[transformName] = 
                    TransformDesc(tr("Effects Data"),
                                  category,
                                  transformName,
                                  userDescription,
                                  userDescription,
                                  descriptor->maker.c_str(),
                                  units,
                                  configurable);
            }
        }

        if (!descriptor->isSynth || descriptor->audioInputPortCount > 0) {

            if (descriptor->audioOutputPortCount > 0) {

                QString transformName = QString("%1:A").arg(pluginId);
                QString type = tr("Effects");
                if (descriptor->audioInputPortCount == 0) {
                    type = tr("Generators");
                }

                transforms[transformName] =
                    TransformDesc(type,
                                  category,
                                  transformName,
                                  pluginDescription,
                                  pluginDescription,
                                  descriptor->maker.c_str(),
                                  "",
                                  configurable);
            }
        }
    }
}

QString
TransformFactory::getTransformDescription(TransformName name)
{
    if (m_transforms.find(name) != m_transforms.end()) {
	return m_transforms[name].description;
    } else return "";
}

QString
TransformFactory::getTransformFriendlyName(TransformName name)
{
    if (m_transforms.find(name) != m_transforms.end()) {
	return m_transforms[name].friendlyName;
    } else return "";
}

QString
TransformFactory::getTransformUnits(TransformName name)
{
    if (m_transforms.find(name) != m_transforms.end()) {
	return m_transforms[name].units;
    } else return "";
}

bool
TransformFactory::isTransformConfigurable(TransformName name)
{
    if (m_transforms.find(name) != m_transforms.end()) {
	return m_transforms[name].configurable;
    } else return false;
}

bool
TransformFactory::getTransformChannelRange(TransformName name,
                                           int &min, int &max)
{
    QString id = name.section(':', 0, 2);

    if (FeatureExtractionPluginFactory::instanceFor(id)) {

        Vamp::Plugin *plugin = 
            FeatureExtractionPluginFactory::instanceFor(id)->
            instantiatePlugin(id, 48000);
        if (!plugin) return false;

        min = plugin->getMinChannelCount();
        max = plugin->getMaxChannelCount();
        delete plugin;

        return true;

    } else if (RealTimePluginFactory::instanceFor(id)) {

        const RealTimePluginDescriptor *descriptor = 
            RealTimePluginFactory::instanceFor(id)->
            getPluginDescriptor(id);
        if (!descriptor) return false;

        min = descriptor->audioInputPortCount;
        max = descriptor->audioInputPortCount;

        return true;
    }

    return false;
}

bool
TransformFactory::getChannelRange(TransformName name, Vamp::PluginBase *plugin,
                                  int &minChannels, int &maxChannels)
{
    Vamp::Plugin *vp = 0;
    if ((vp = dynamic_cast<Vamp::Plugin *>(plugin)) ||
        (vp = dynamic_cast<Vamp::PluginHostAdapter *>(plugin))) {
        minChannels = vp->getMinChannelCount();
        maxChannels = vp->getMaxChannelCount();
        return true;
    } else {
        return getTransformChannelRange(name, minChannels, maxChannels);
    }
}

Model *
TransformFactory::getConfigurationForTransform(TransformName name,
                                               const std::vector<Model *> &candidateInputModels,
                                               PluginTransform::ExecutionContext &context,
                                               QString &configurationXml,
                                               AudioCallbackPlaySource *source)
{
    if (candidateInputModels.empty()) return 0;

    //!!! This will need revision -- we'll have to have a callback
    //from the dialog for when the candidate input model is changed,
    //as we'll need to reinitialise the channel settings in the dialog
    Model *inputModel = candidateInputModels[0]; //!!! for now
    QStringList candidateModelNames;
    std::map<QString, Model *> modelMap;
    for (size_t i = 0; i < candidateInputModels.size(); ++i) {
        QString modelName = candidateInputModels[i]->objectName();
        QString origModelName = modelName;
        int dupcount = 1;
        while (modelMap.find(modelName) != modelMap.end()) {
            modelName = tr("%1 <%2>").arg(origModelName).arg(++dupcount);
        }
        modelMap[modelName] = candidateInputModels[i];
        candidateModelNames.push_back(modelName);
    }

    QString id = name.section(':', 0, 2);
    QString output = name.section(':', 3);
    QString outputLabel = "";
    
    bool ok = false;
    configurationXml = m_lastConfigurations[name];

//    std::cerr << "last configuration: " << configurationXml.toStdString() << std::endl;

    Vamp::PluginBase *plugin = 0;

    bool frequency = false;
    bool effect = false;
    bool generator = false;

    if (FeatureExtractionPluginFactory::instanceFor(id)) {

        Vamp::Plugin *vp =
            FeatureExtractionPluginFactory::instanceFor(id)->instantiatePlugin
            (id, inputModel->getSampleRate());

        if (vp) {

            plugin = vp;
            frequency = (vp->getInputDomain() == Vamp::Plugin::FrequencyDomain);

            std::vector<Vamp::Plugin::OutputDescriptor> od =
                vp->getOutputDescriptors();
            if (od.size() > 1) {
                for (size_t i = 0; i < od.size(); ++i) {
                    if (od[i].name == output.toStdString()) {
                        outputLabel = od[i].description.c_str();
                        break;
                    }
                }
            }
        }

    } else if (RealTimePluginFactory::instanceFor(id)) {

        RealTimePluginFactory *factory = RealTimePluginFactory::instanceFor(id);
        const RealTimePluginDescriptor *desc = factory->getPluginDescriptor(id);

        if (desc->audioInputPortCount > 0 && 
            desc->audioOutputPortCount > 0 &&
            !desc->isSynth) {
            effect = true;
        }

        if (desc->audioInputPortCount == 0) {
            generator = true;
        }

        if (output != "A") {
            int outputNo = output.toInt();
            if (outputNo >= 0 && outputNo < desc->controlOutputPortCount) {
                outputLabel = desc->controlOutputPortNames[outputNo].c_str();
            }
        }

        size_t sampleRate = inputModel->getSampleRate();
        size_t blockSize = 1024;
        size_t channels = 1;
        if (effect && source) {
            sampleRate = source->getTargetSampleRate();
            blockSize = source->getTargetBlockSize();
            channels = source->getTargetChannelCount();
        }

        RealTimePluginInstance *rtp = factory->instantiatePlugin
            (id, 0, 0, sampleRate, blockSize, channels);

        plugin = rtp;

        if (effect && source && rtp) {
            source->setAuditioningPlugin(rtp);
        }
    }

    if (plugin) {

        context = PluginTransform::ExecutionContext(context.channel, plugin);

        if (configurationXml != "") {
            PluginXml(plugin).setParametersFromXml(configurationXml);
        }

        int sourceChannels = 1;
        if (dynamic_cast<DenseTimeValueModel *>(inputModel)) {
            sourceChannels = dynamic_cast<DenseTimeValueModel *>(inputModel)
                ->getChannelCount();
        }

        int minChannels = 1, maxChannels = sourceChannels;
        getChannelRange(name, plugin, minChannels, maxChannels);

        int targetChannels = sourceChannels;
        if (!effect) {
            if (sourceChannels < minChannels) targetChannels = minChannels;
            if (sourceChannels > maxChannels) targetChannels = maxChannels;
        }

        int defaultChannel = context.channel;

        PluginParameterDialog *dialog = new PluginParameterDialog(plugin);

        if (candidateModelNames.size() > 1 && !generator) {
            dialog->setCandidateInputModels(candidateModelNames);
        }

        if (targetChannels > 0) {
            dialog->setChannelArrangement(sourceChannels, targetChannels,
                                          defaultChannel);
        }
        
        dialog->setOutputLabel(outputLabel);
        
        dialog->setShowProcessingOptions(true, frequency);

        if (dialog->exec() == QDialog::Accepted) {
            ok = true;
        }

        QString selectedInput = dialog->getInputModel();
        if (selectedInput != "") {
            if (modelMap.find(selectedInput) != modelMap.end()) {
                inputModel = modelMap[selectedInput];
                std::cerr << "Found selected input \"" << selectedInput.toStdString() << "\" in model map, result is " << inputModel << std::endl;
            } else {
                std::cerr << "Failed to find selected input \"" << selectedInput.toStdString() << "\" in model map" << std::endl;
            }
        }

        configurationXml = PluginXml(plugin).toXmlString();
        context.channel = dialog->getChannel();

        dialog->getProcessingParameters(context.stepSize,
                                        context.blockSize,
                                        context.windowType);

        context.makeConsistentWithPlugin(plugin);

        delete dialog;

        if (effect && source) {
            source->setAuditioningPlugin(0); // will delete our plugin
        } else {
            delete plugin;
        }
    }

    if (ok) m_lastConfigurations[name] = configurationXml;

    return ok ? inputModel : 0;
}

PluginTransform::ExecutionContext
TransformFactory::getDefaultContextForTransform(TransformName name,
                                                Model *inputModel)
{
    PluginTransform::ExecutionContext context(-1);

    QString id = name.section(':', 0, 2);

    if (FeatureExtractionPluginFactory::instanceFor(id)) {

        Vamp::Plugin *vp =
            FeatureExtractionPluginFactory::instanceFor(id)->instantiatePlugin
            (id, inputModel ? inputModel->getSampleRate() : 48000);

        if (vp) context = PluginTransform::ExecutionContext(-1, vp);

    }

    return context;
}

Transform *
TransformFactory::createTransform(TransformName name, Model *inputModel,
                                  const PluginTransform::ExecutionContext &context,
                                  QString configurationXml, bool start)
{
    Transform *transform = 0;

    QString id = name.section(':', 0, 2);
    QString output = name.section(':', 3);

    if (FeatureExtractionPluginFactory::instanceFor(id)) {
        transform = new FeatureExtractionPluginTransform(inputModel,
                                                         id,
                                                         context,
                                                         configurationXml,
                                                         output);
    } else if (RealTimePluginFactory::instanceFor(id)) {
        transform = new RealTimePluginTransform(inputModel,
                                                id,
                                                context,
                                                configurationXml,
                                                getTransformUnits(name),
                                                output == "A" ? -1 :
                                                output.toInt());
    } else {
        std::cerr << "TransformFactory::createTransform: Unknown transform \""
                  << name.toStdString() << "\"" << std::endl;
        return transform;
    }

    if (start && transform) transform->start();
    transform->setObjectName(name);
    return transform;
}

Model *
TransformFactory::transform(TransformName name, Model *inputModel,
                            const PluginTransform::ExecutionContext &context,
                            QString configurationXml)
{
    Transform *t = createTransform(name, inputModel, context,
                                   configurationXml, false);

    if (!t) return 0;

    connect(t, SIGNAL(finished()), this, SLOT(transformFinished()));

    t->start();
    Model *model = t->detachOutputModel();

    if (model) {
        QString imn = inputModel->objectName();
        QString trn = getTransformFriendlyName(name);
        if (imn != "") {
            if (trn != "") {
                model->setObjectName(tr("%1: %2").arg(imn).arg(trn));
            } else {
                model->setObjectName(imn);
            }
        } else if (trn != "") {
            model->setObjectName(trn);
        }
    }

    return model;
}

void
TransformFactory::transformFinished()
{
    QObject *s = sender();
    Transform *transform = dynamic_cast<Transform *>(s);
    
    if (!transform) {
	std::cerr << "WARNING: TransformFactory::transformFinished: sender is not a transform" << std::endl;
	return;
    }

    transform->wait(); // unnecessary but reassuring
    delete transform;
}