diff constant-q-cpp/vamp/CQVamp.cpp @ 366:5d0a2ebb4d17

Bring dependent libraries in to repo

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/constant-q-cpp/vamp/CQVamp.cpp	Fri Jun 24 14:47:45 2016 +0100
@@ -0,0 +1,444 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+/*
+    Constant-Q library
+    Copyright (c) 2013-2014 Queen Mary, University of London
+
+    Permission is hereby granted, free of charge, to any person
+    obtaining a copy of this software and associated documentation
+    files (the "Software"), to deal in the Software without
+    restriction, including without limitation the rights to use, copy,
+    modify, merge, publish, distribute, sublicense, and/or sell copies
+    of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+    CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+    Except as contained in this notice, the names of the Centre for
+    Digital Music; Queen Mary, University of London; and Chris Cannam
+    shall not be used in advertising or otherwise to promote the sale,
+    use or other dealings in this Software without prior written
+    authorization.
+*/
+
+#include "CQVamp.h"
+
+#include "Pitch.h"
+
+#include <algorithm>
+#include <cstdio>
+
+using std::string;
+using std::vector;
+using std::cerr;
+using std::endl;
+
+// The plugin offers either MIDI pitch or frequency range parameters,
+// depending on the midiPitchParameters option given to the
+// constructor. It never offers both. So they can have different
+// defaults; if we're using MIDI pitch, the min and max frequencies
+// will come from those rather than from the m_minFrequency and
+// m_maxFrequency members.
+static const int defaultMinMIDIPitch = 36;
+static const int defaultMaxMIDIPitch = 96;
+static const int defaultBPO = 36;
+static const float defaultMinFrequency = 110;
+static const float defaultMaxFrequency = 14700;
+static const float defaultTuningFrequency = 440.f;
+
+CQVamp::CQVamp(float inputSampleRate, bool midiPitchParameters) :
+    Vamp::Plugin(inputSampleRate),
+    m_midiPitchParameters(midiPitchParameters),
+    m_minMIDIPitch(defaultMinMIDIPitch),
+    m_maxMIDIPitch(defaultMaxMIDIPitch),
+    m_tuningFrequency(defaultTuningFrequency),
+    m_bpo(defaultBPO),
+    m_interpolation(CQSpectrogram::InterpolateLinear),
+    m_cq(0),
+    m_maxFrequency(defaultMaxFrequency),
+    m_minFrequency(defaultMinFrequency),
+    m_haveStartTime(false),
+    m_columnCount(0)
+{
+}
+
+CQVamp::~CQVamp()
+{
+    delete m_cq;
+}
+
+string
+CQVamp::getIdentifier() const
+{
+    if (m_midiPitchParameters) {
+        return "cqvampmidi";
+    } else {
+        return "cqvamp";
+    }
+}
+
+string
+CQVamp::getName() const
+{
+    if (m_midiPitchParameters) {
+        return "CQ Constant-Q Spectrogram (MIDI pitch range)";
+    } else {
+        return "CQ Constant-Q Spectrogram (Hz range)";
+    }
+}
+
+string
+CQVamp::getDescription() const
+{
+    if (m_midiPitchParameters) {
+        return "Extract a spectrogram with constant ratio of centre frequency to resolution from the input audio, specifying the frequency range in MIDI pitch units.";
+    } else {
+        return "Extract a spectrogram with constant ratio of centre frequency to resolution from the input audio, specifying the frequency range in Hz.";
+    }
+}
+
+string
+CQVamp::getMaker() const
+{
+    return "Queen Mary, University of London";
+}
+
+int
+CQVamp::getPluginVersion() const
+{
+    return 2;
+}
+
+string
+CQVamp::getCopyright() const
+{
+    return "Plugin by Chris Cannam. Method by Christian Schörkhuber and Anssi Klapuri. Copyright (c) 2015 QMUL. BSD/MIT licence.";
+}
+
+CQVamp::ParameterList
+CQVamp::getParameterDescriptors() const
+{
+    ParameterList list;
+
+    ParameterDescriptor desc;
+
+    if (m_midiPitchParameters) {
+
+        desc.identifier = "minpitch";
+        desc.name = "Minimum Pitch";
+        desc.unit = "MIDI units";
+        desc.description = "MIDI pitch corresponding to the lowest frequency to be included in the constant-Q transform. (The actual minimum frequency may be lower, as the range always covers an integral number of octaves below the highest frequency.)";
+        desc.minValue = 0;
+        desc.maxValue = 127;
+        desc.defaultValue = defaultMinMIDIPitch;
+        desc.isQuantized = true;
+        desc.quantizeStep = 1;
+        list.push_back(desc);
+
+        desc.identifier = "maxpitch";
+        desc.name = "Maximum Pitch";
+        desc.unit = "MIDI units";
+        desc.description = "MIDI pitch corresponding to the highest frequency to be included in the constant-Q transform";
+        desc.minValue = 0;
+        desc.maxValue = 127;
+        desc.defaultValue = defaultMaxMIDIPitch;
+        desc.isQuantized = true;
+        desc.quantizeStep = 1;
+        list.push_back(desc);
+
+        desc.identifier = "tuning";
+        desc.name = "Tuning Frequency";
+        desc.unit = "Hz";
+        desc.description = "Frequency of concert A";
+        desc.minValue = 360;
+        desc.maxValue = 500;
+        desc.defaultValue = defaultTuningFrequency;
+        desc.isQuantized = false;
+        list.push_back(desc);
+
+    } else {
+
+        desc.identifier = "minfreq";
+        desc.name = "Minimum Frequency";
+        desc.unit = "Hz";
+        desc.description = "Lowest frequency to be included in the constant-Q transform. (The actual minimum frequency may be lower, as the range always covers an integral number of octaves below the highest frequency.)";
+        desc.minValue = 1;
+        desc.maxValue = 22050;
+        desc.defaultValue = defaultMinFrequency;
+        desc.isQuantized = false;
+        list.push_back(desc);
+
+        desc.identifier = "maxfreq";
+        desc.name = "Maximum Frequency";
+        desc.unit = "Hz";
+        desc.description = "MIDI pitch corresponding to the highest frequency to be included in the constant-Q transform";
+        desc.minValue = 1;
+        desc.maxValue = 22050;
+        desc.defaultValue = defaultMaxFrequency;
+        desc.isQuantized = false;
+        list.push_back(desc);
+    }
+    
+    desc.identifier = "bpo";
+    desc.name = "Bins per Octave";
+    desc.unit = "bins";
+    desc.description = "Number of constant-Q transform bins per octave";
+    desc.minValue = 2;
+    desc.maxValue = 480;
+    desc.defaultValue = defaultBPO;
+    desc.isQuantized = true;
+    desc.quantizeStep = 1;
+    list.push_back(desc);
+
+    desc.identifier = "interpolation";
+    desc.name = "Interpolation";
+    desc.unit = "";
+    desc.description = "Interpolation method used to fill empty cells in lower octaves";
+    desc.minValue = 0;
+    desc.maxValue = 2;
+    desc.defaultValue = 2;
+    desc.isQuantized = true;
+    desc.quantizeStep = 1;
+    desc.valueNames.push_back("None, leave as zero");
+    desc.valueNames.push_back("None, repeat prior value");
+    desc.valueNames.push_back("Linear interpolation");
+    list.push_back(desc);
+
+    return list;
+}
+
+float
+CQVamp::getParameter(std::string param) const
+{
+    if (param == "minpitch" && m_midiPitchParameters) {
+        return m_minMIDIPitch;
+    }
+    if (param == "maxpitch" && m_midiPitchParameters) {
+        return m_maxMIDIPitch;
+    }
+    if (param == "tuning" && m_midiPitchParameters) {
+        return m_tuningFrequency;
+    }
+    if (param == "bpo") {
+        return m_bpo;
+    }
+    if (param == "interpolation") {
+        return (float)m_interpolation;
+    }
+    if (param == "minfreq" && !m_midiPitchParameters) {
+        return m_minFrequency;
+    }
+    if (param == "maxfreq" && !m_midiPitchParameters) {
+        return m_maxFrequency;
+    }
+    std::cerr << "WARNING: CQVamp::getParameter: unknown parameter \""
+              << param << "\"" << std::endl;
+    return 0.0;
+}
+
+void
+CQVamp::setParameter(std::string param, float value)
+{
+    if (param == "minpitch" && m_midiPitchParameters) {
+        m_minMIDIPitch = int(value + 0.5f);
+    } else if (param == "maxpitch" && m_midiPitchParameters) {
+        m_maxMIDIPitch = int(value + 0.5f);
+    } else if (param == "tuning" && m_midiPitchParameters) {
+        m_tuningFrequency = value;
+    } else if (param == "bpo") {
+        m_bpo = int(value + 0.5f);
+    } else if (param == "interpolation") {
+        m_interpolation = (CQSpectrogram::Interpolation)int(value + 0.5f);
+    } else if (param == "minfreq" && !m_midiPitchParameters) {
+        m_minFrequency = value;
+    } else if (param == "maxfreq" && !m_midiPitchParameters) {
+        m_maxFrequency = value;
+    } else {
+        std::cerr << "WARNING: CQVamp::setParameter: unknown parameter \""
+                  << param << "\"" << std::endl;
+    }
+}
+
+bool
+CQVamp::initialise(size_t channels, size_t stepSize, size_t blockSize)
+{
+    if (m_cq) {
+	delete m_cq;
+        m_cq = 0;
+    }
+
+    if (channels < getMinChannelCount() ||
+	channels > getMaxChannelCount()) return false;
+
+    m_stepSize = stepSize;
+    m_blockSize = blockSize;
+
+    if (m_midiPitchParameters) {
+        m_minFrequency = Pitch::getFrequencyForPitch
+            (m_minMIDIPitch, 0, m_tuningFrequency);
+        m_maxFrequency = Pitch::getFrequencyForPitch
+            (m_maxMIDIPitch, 0, m_tuningFrequency);
+    }
+
+    reset();
+
+    if (!m_cq || !m_cq->isValid()) {
+        cerr << "CQVamp::initialise: Constant-Q parameters not valid! Not initialising" << endl;
+        return false;
+    }
+
+    return true;
+}
+
+void
+CQVamp::reset()
+{
+    delete m_cq;
+    CQParameters p(m_inputSampleRate, m_minFrequency, m_maxFrequency, m_bpo);
+    m_cq = new CQSpectrogram(p, m_interpolation);
+    m_haveStartTime = false;
+    m_columnCount = 0;
+}
+
+size_t
+CQVamp::getPreferredStepSize() const
+{
+    return 0;
+}
+
+size_t
+CQVamp::getPreferredBlockSize() const
+{
+    return 0;
+}
+
+std::string
+CQVamp::noteName(int i) const
+{
+    static const char *names[] = {
+        "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"
+    };
+
+    const char *n = names[i % 12];
+    int oct = i / 12 - 1;
+    char buf[20];
+    sprintf(buf, "%d %s%d", i, n, oct);
+
+    return buf;
+}
+
+CQVamp::OutputList
+CQVamp::getOutputDescriptors() const
+{
+    OutputList list;
+
+    OutputDescriptor d;
+    d.identifier = "constantq";
+    d.name = "Constant-Q Spectrogram";
+    d.unit = "";
+    d.description = "Output of constant-Q transform, as a single vector per process block";
+    d.hasFixedBinCount = true;
+    d.binCount = (m_cq ? m_cq->getTotalBins() : (9 * 24));
+
+    if (m_cq) {
+        char name[20];
+        for (int i = 0; i < (int)d.binCount; ++i) {
+            float freq = m_cq->getBinFrequency(d.binCount - i - 1);
+            sprintf(name, "%.1f Hz", freq);
+            int note = Pitch::getPitchForFrequency(freq, 0, m_tuningFrequency);
+            float nearestFreq =
+                Pitch::getFrequencyForPitch(note, 0, m_tuningFrequency);
+            if (fabs(freq - nearestFreq) < 0.01) {
+                d.binNames.push_back(name + std::string(" ") + noteName(note));
+            } else {
+                d.binNames.push_back(name);
+            }
+        }
+    }
+
+    d.hasKnownExtents = false;
+    d.isQuantized = false;
+    d.sampleType = OutputDescriptor::FixedSampleRate;
+    d.sampleRate = m_inputSampleRate / (m_cq ? m_cq->getColumnHop() : 256);
+    list.push_back(d);
+
+    return list;
+}
+
+CQVamp::FeatureSet
+CQVamp::process(const float *const *inputBuffers,
+		Vamp::RealTime timestamp)
+{
+    if (!m_cq) {
+	cerr << "ERROR: CQVamp::process: "
+	     << "Plugin has not been initialised"
+	     << endl;
+	return FeatureSet();
+    }
+
+    if (!m_haveStartTime) {
+        m_startTime = timestamp;
+        m_haveStartTime = true;
+    }
+
+    vector<double> data;
+    for (int i = 0; i < m_blockSize; ++i) data.push_back(inputBuffers[0][i]);
+    
+    vector<vector<double> > cqout = m_cq->process(data);
+    return convertToFeatures(cqout);
+}
+
+CQVamp::FeatureSet
+CQVamp::getRemainingFeatures()
+{
+    vector<vector<double> > cqout = m_cq->getRemainingOutput();
+    return convertToFeatures(cqout);
+}
+
+CQVamp::FeatureSet
+CQVamp::convertToFeatures(const vector<vector<double> > &cqout)
+{
+    FeatureSet returnFeatures;
+
+    int width = cqout.size();
+    int height = m_cq->getTotalBins();
+
+    for (int i = 0; i < width; ++i) {
+
+	vector<float> column(height, 0.f);
+        int thisHeight = cqout[i].size();
+	for (int j = 0; j < thisHeight; ++j) {
+	    column[j] = cqout[i][j];
+	}
+
+        // put low frequencies at the start
+        std::reverse(column.begin(), column.end());
+
+	Feature feature;
+	feature.hasTimestamp = true;
+        feature.timestamp = m_startTime + Vamp::RealTime::frame2RealTime
+            (m_columnCount * m_cq->getColumnHop() - m_cq->getLatency(),
+             m_inputSampleRate);
+	feature.values = column;
+	feature.label = "";
+
+//        cerr << "timestamp = " << feature.timestamp << " (start time = " << m_startTime << ", column count = " << m_columnCount << ", latency = " << m_cq->getLatency() << ", sample rate " << m_inputSampleRate << ")" << endl;
+
+        if (feature.timestamp >= m_startTime) {
+            returnFeatures[0].push_back(feature);
+        }
+
+        ++m_columnCount;
+    }
+
+    return returnFeatures;
+}
+