view transform/CSVFeatureWriter.h @ 1008:d9e0e59a1581

When using an aggregate model to pass data to a transform, zero-pad the shorter input to the duration of the longer rather than truncating the longer. (This is better behaviour for e.g. MATCH, and in any case the code was previously truncating incorrectly and ending up with garbage data at the end.)

/* -*- 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.

    Sonic Annotator
    A utility for batch feature extraction from audio files.

    Mark Levy, Chris Sutton and Chris Cannam, Queen Mary, University of London.
    Copyright 2007-2008 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.
*/

#ifndef _CSV_FEATURE_WRITER_H_
#define _CSV_FEATURE_WRITER_H_

#include <string>
#include <map>
#include <set>

#include <QString>

#include "FileFeatureWriter.h"

using std::string;
using std::map;

class QTextStream;
class QFile;

class CSVFeatureWriter : public FileFeatureWriter
{
public:
    CSVFeatureWriter();
    virtual ~CSVFeatureWriter();

    virtual string getDescription() const;

    virtual ParameterList getSupportedParameters() const;
    virtual void setParameters(map<string, string> &params);

    virtual void write(QString trackid,
                       const Transform &transform,
                       const Vamp::Plugin::OutputDescriptor &output,
                       const Vamp::Plugin::FeatureList &features,
                       std::string summaryType = "");

    virtual void finish();

    virtual QString getWriterTag() const { return "csv"; }

private:
    QString m_separator;
    bool m_sampleTiming;
    bool m_endTimes;
    bool m_forceEnd;
    bool m_omitFilename;
    QString m_prevPrintedTrackId;

    typedef pair<QString, Transform> DataId; // track id, transform
    typedef map<DataId, Vamp::Plugin::Feature> PendingFeatures;
    typedef map<DataId, std::string> PendingSummaryTypes;
    PendingFeatures m_pending;
    PendingSummaryTypes m_pendingSummaryTypes;

    void writeFeature(DataId,
                      QTextStream &,
                      const Vamp::Plugin::Feature &f,
                      const Vamp::Plugin::Feature *optionalNextFeature,
                      std::string summaryType);
};

#endif