view transform/Transform.cpp @ 1196:c7b9c902642f spectrogram-minor-refactor

Fix threshold in spectrogram -- it wasn't working in the last release.
There is a new protocol for this. Formerly the threshold parameter had a
range from -50dB to 0 with the default at -50, and -50 treated internally
as "no threshold". However, there was a hardcoded, hidden internal threshold
for spectrogram colour mapping at -80dB with anything below this being rounded
to zero. Now the threshold parameter has range -81 to -1 with the default
at -80, -81 is treated internally as "no threshold", and there is no hidden
internal threshold. So the default behaviour is the same as before, an
effective -80dB threshold, but it is now possible to change this in both
directions. Sessions reloaded from prior versions may look slightly different
because, if the session says there should be no threshold, there will now
actually be no threshold instead of having the hidden internal one.

Still need to do something in the UI to make it apparent that the -81dB
setting removes the threshold entirely. This is at least no worse than the
previous, also obscured, magic -50dB setting.

/* -*- 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 2006-2007 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 "Transform.h"

#include "plugin/PluginIdentifier.h"

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

#include <QXmlAttributes>

#include <QDomDocument>
#include <QDomElement>
#include <QDomNamedNodeMap>
#include <QDomAttr>

#include <QTextStream>

#include <iostream>

Transform::Transform() :
    m_summaryType(NoSummary),
    m_stepSize(0),
    m_blockSize(0),
    m_windowType(HanningWindow),
    m_sampleRate(0)
{
}

Transform::Transform(QString xml) :
    m_summaryType(NoSummary),
    m_stepSize(0),
    m_blockSize(0),
    m_windowType(HanningWindow),
    m_sampleRate(0)
{
    QDomDocument doc;
    
    QString error;
    int errorLine;
    int errorColumn;

    if (!doc.setContent(xml, false, &error, &errorLine, &errorColumn)) {
        m_errorString = QString("%1 at line %2, column %3")
            .arg(error).arg(errorLine).arg(errorColumn);
        return;
    }
    
    QDomElement transformElt = doc.firstChildElement("transform");
    QDomNamedNodeMap attrNodes = transformElt.attributes();
    QXmlAttributes attrs;

    for (int i = 0; i < attrNodes.length(); ++i) {
        QDomAttr attr = attrNodes.item(i).toAttr();
        if (!attr.isNull()) attrs.append(attr.name(), "", "", attr.value());
    }

    setFromXmlAttributes(attrs);

    for (QDomElement paramElt = transformElt.firstChildElement("parameter");
         !paramElt.isNull();
         paramElt = paramElt.nextSiblingElement("parameter")) {

        QDomNamedNodeMap paramAttrs = paramElt.attributes();

        QDomAttr nameAttr = paramAttrs.namedItem("name").toAttr();
        if (nameAttr.isNull() || nameAttr.value() == "") continue;
        
        QDomAttr valueAttr = paramAttrs.namedItem("value").toAttr();
        if (valueAttr.isNull() || valueAttr.value() == "") continue;

        setParameter(nameAttr.value(), valueAttr.value().toFloat());
    }

    for (QDomElement configElt = transformElt.firstChildElement("configuration");
         !configElt.isNull();
         configElt = configElt.nextSiblingElement("configuration")) {

        QDomNamedNodeMap configAttrs = configElt.attributes();

        QDomAttr nameAttr = configAttrs.namedItem("name").toAttr();
        if (nameAttr.isNull() || nameAttr.value() == "") continue;
        
        QDomAttr valueAttr = configAttrs.namedItem("value").toAttr();
        if (valueAttr.isNull() || valueAttr.value() == "") continue;

        setConfigurationValue(nameAttr.value(), valueAttr.value());
    }
}

Transform::~Transform()
{
}

bool
Transform::operator==(const Transform &t) const
{
    bool identical =  
        m_id == t.m_id &&
        m_parameters == t.m_parameters &&
        m_configuration == t.m_configuration &&
        m_program == t.m_program &&
        m_summaryType == t.m_summaryType &&
        m_stepSize == t.m_stepSize &&
        m_blockSize == t.m_blockSize &&
        m_windowType == t.m_windowType &&
        m_startTime == t.m_startTime &&
        m_duration == t.m_duration &&
        m_sampleRate == t.m_sampleRate;
/*
    SVDEBUG << "Transform::operator==: identical = " << identical << endl;
    cerr << "A = " << endl;
    cerr << toXmlString() << endl;
    cerr << "B = " << endl;
    cerr << t.toXmlString() << endl;
*/
    return identical;
}

bool
Transform::operator<(const Transform &t) const
{
    if (m_id != t.m_id) {
        return m_id < t.m_id;
    }
    if (m_parameters != t.m_parameters) {
        return mapLessThan<QString, float>(m_parameters, t.m_parameters);
    }
    if (m_configuration != t.m_configuration) {
        return mapLessThan<QString, QString>(m_configuration, t.m_configuration);
    }
    if (m_program != t.m_program) {
        return m_program < t.m_program;
    }
    if (m_summaryType != t.m_summaryType) {
        return int(m_summaryType) < int(t.m_summaryType);
    }
    if (m_stepSize != t.m_stepSize) {
        return m_stepSize < t.m_stepSize;
    }
    if (m_blockSize != t.m_blockSize) {
        return m_blockSize < t.m_blockSize;
    }
    if (m_windowType != t.m_windowType) {
        return m_windowType < t.m_windowType;
    }
    if (m_startTime != t.m_startTime) {
        return m_startTime < t.m_startTime;
    }
    if (m_duration != t.m_duration) {
        return m_duration < t.m_duration;
    }
    if (m_sampleRate != t.m_sampleRate) {
        return m_sampleRate < t.m_sampleRate;
    }
    return false;
}

void
Transform::setIdentifier(TransformId id)
{
    m_id = id;
}

TransformId
Transform::getIdentifier() const
{
    return m_id;
}

QString
Transform::createIdentifier(QString type, QString soName, QString label,
                            QString output)
{
    QString pluginId = PluginIdentifier::createIdentifier(type, soName, label);
    return pluginId + ":" + output;
}

void
Transform::parseIdentifier(QString identifier,
                           QString &type, QString &soName,
                           QString &label, QString &output)
{
    output = identifier.section(':', 3);
    PluginIdentifier::parseIdentifier(identifier.section(':', 0, 2),
                                      type, soName, label);
}

Transform::Type
Transform::getType() const
{
    if (FeatureExtractionPluginFactory::instanceFor(getPluginIdentifier())) {
        return FeatureExtraction;
    } else if (RealTimePluginFactory::instanceFor(getPluginIdentifier())) {
        return RealTimeEffect;
    } else {
        return UnknownType;
    }
}

QString
Transform::getPluginIdentifier() const
{
    return m_id.section(':', 0, 2);
}

QString
Transform::getOutput() const
{
    return m_id.section(':', 3);
}

void
Transform::setPluginIdentifier(QString pluginIdentifier)
{
    m_id = pluginIdentifier + ':' + getOutput();
}

void
Transform::setOutput(QString output)
{
    m_id = getPluginIdentifier() + ':' + output;
}

TransformId
Transform::getIdentifierForPluginOutput(QString pluginIdentifier,
                                        QString output)
{
    return pluginIdentifier + ':' + output;
}

const Transform::ParameterMap &
Transform::getParameters() const
{
    return m_parameters;
}

void
Transform::setParameters(const ParameterMap &pm)
{
    m_parameters = pm;
}

void
Transform::setParameter(QString name, float value)
{
//    SVDEBUG << "Transform::setParameter(" << name//              << ") -> " << value << endl;
    m_parameters[name] = value;
}

const Transform::ConfigurationMap &
Transform::getConfiguration() const
{
    return m_configuration;
}

void
Transform::setConfiguration(const ConfigurationMap &cm)
{
    m_configuration = cm;
}

void
Transform::setConfigurationValue(QString name, QString value)
{
    SVDEBUG << "Transform::setConfigurationValue(" << name              << ") -> " << value << endl;
    m_configuration[name] = value;
}

QString
Transform::getPluginVersion() const
{
    return m_pluginVersion;
}

void
Transform::setPluginVersion(QString version)
{
    m_pluginVersion = version;
}

QString
Transform::getProgram() const
{
    return m_program;
}

void
Transform::setProgram(QString program)
{
    m_program = program;
}

Transform::SummaryType
Transform::getSummaryType() const
{
    return m_summaryType;
}

void
Transform::setSummaryType(SummaryType type)
{
    m_summaryType = type;
}
    
int
Transform::getStepSize() const
{
    return m_stepSize;
}

void
Transform::setStepSize(int s)
{
    m_stepSize = s;
}
    
int
Transform::getBlockSize() const
{
    return m_blockSize;
}

void
Transform::setBlockSize(int s)
{
    m_blockSize = s;
}

WindowType
Transform::getWindowType() const
{
    return m_windowType;
}

void
Transform::setWindowType(WindowType type)
{
    m_windowType = type;
}

RealTime
Transform::getStartTime() const
{
    return m_startTime;
}

void
Transform::setStartTime(RealTime t)
{
    m_startTime = t;
}

RealTime
Transform::getDuration() const
{
    return m_duration;
}

void
Transform::setDuration(RealTime d)
{
    m_duration = d;
}
    
sv_samplerate_t
Transform::getSampleRate() const
{
    return m_sampleRate;
}

void
Transform::setSampleRate(sv_samplerate_t rate)
{
    m_sampleRate = rate;
}

void
Transform::toXml(QTextStream &out, QString indent, QString extraAttributes) const
{
    out << indent;

    bool haveContent = true;
    if (m_parameters.empty() && m_configuration.empty()) haveContent = false;

    out << QString("<transform\n    id=\"%1\"\n    pluginVersion=\"%2\"\n    program=\"%3\"\n    stepSize=\"%4\"\n    blockSize=\"%5\"\n    windowType=\"%6\"\n    startTime=\"%7\"\n    duration=\"%8\"\n    sampleRate=\"%9\"")
        .arg(encodeEntities(m_id))
        .arg(encodeEntities(m_pluginVersion))
        .arg(encodeEntities(m_program))
        .arg(m_stepSize)
        .arg(m_blockSize)
        .arg(encodeEntities(Window<float>::getNameForType(m_windowType).c_str()))
        .arg(encodeEntities(m_startTime.toString().c_str()))
        .arg(encodeEntities(m_duration.toString().c_str()))
        .arg(m_sampleRate);

    if (m_summaryType != NoSummary) {
        out << QString("\n    summaryType=\"%1\"").arg(summaryTypeToString(m_summaryType));
    }

    if (extraAttributes != "") {
        out << " " << extraAttributes;
    }

    if (haveContent) {

        out << ">\n";

        for (ParameterMap::const_iterator i = m_parameters.begin();
             i != m_parameters.end(); ++i) {
            out << indent << "  "
                << QString("<parameter name=\"%1\" value=\"%2\"/>\n")
                .arg(encodeEntities(i->first))
                .arg(i->second);
        }
        
        for (ConfigurationMap::const_iterator i = m_configuration.begin();
             i != m_configuration.end(); ++i) {
            out << indent << "  "
                << QString("<configuration name=\"%1\" value=\"%2\"/>\n")
                .arg(encodeEntities(i->first))
                .arg(encodeEntities(i->second));
        }

        out << indent << "</transform>\n";

    } else {

        out << "/>\n";
    }
}

Transform::SummaryType
Transform::stringToSummaryType(QString str)
{
    str = str.toLower();
    if (str == "minimum" || str == "min") return Minimum;
    if (str == "maximum" || str == "max") return Maximum;
    if (str == "mean") return Mean;
    if (str == "median") return Median;
    if (str == "mode") return Mode;
    if (str == "sum") return Sum;
    if (str == "variance") return Variance;
    if (str == "standard-deviation" || str == "standardDeviation" ||
        str == "standard deviation" || str == "sd") return StandardDeviation;
    if (str == "count") return Count;
    if (str == "") return NoSummary;
    SVDEBUG << "Transform::stringToSummaryType: unknown summary type \""
              << str << "\"" << endl;
    return NoSummary;
}

QString
Transform::summaryTypeToString(SummaryType type)
{
    switch (type) {
    case Minimum: return "min";
    case Maximum: return "max";
    case Mean: return "mean";
    case Median: return "median";
    case Mode: return "mode";
    case Sum: return "sum";
    case Variance: return "variance";
    case StandardDeviation: return "sd";
    case Count: return "count";
    case NoSummary: return "";
    default:
        SVDEBUG << "Transform::summaryTypeToString: unexpected summary type "
                  << int(type) << endl;
        return "";
    }
}

void
Transform::setFromXmlAttributes(const QXmlAttributes &attrs)
{
    if (attrs.value("id") != "") {
        setIdentifier(attrs.value("id"));
    }

    if (attrs.value("pluginVersion") != "") {
        setPluginVersion(attrs.value("pluginVersion"));
    }

    if (attrs.value("program") != "") {
        setProgram(attrs.value("program"));
    }

    if (attrs.value("stepSize") != "") {
        setStepSize(attrs.value("stepSize").toInt());
    }

    if (attrs.value("blockSize") != "") {
        setBlockSize(attrs.value("blockSize").toInt());
    }

    if (attrs.value("windowType") != "") {
        setWindowType(Window<float>::getTypeForName
                      (attrs.value("windowType").toStdString()));
    }

    if (attrs.value("startTime") != "") {
        setStartTime(RealTime::fromString(attrs.value("startTime").toStdString()));
    }

    if (attrs.value("duration") != "") {
        setDuration(RealTime::fromString(attrs.value("duration").toStdString()));
    }
    
    if (attrs.value("sampleRate") != "") {
        setSampleRate(attrs.value("sampleRate").toFloat());
    }

    if (attrs.value("summaryType") != "") {
        setSummaryType(stringToSummaryType(attrs.value("summaryType")));
    }
}