view runner/MultiplexedReader.h @ 152:db83ea0e102d jams

Make the JSON well-formed (though still empty), except in the case where we are asked to write more than one file's features to the same output file or stdout

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

/*
    Sonic Annotator
    A utility for batch feature extraction from audio files.
    Mark Levy, Chris Sutton and Chris Cannam, Queen Mary, University of London.
    Copyright 2007-2014 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 _MULTIPLEXED_READER_H_
#define _MULTIPLEXED_READER_H_

#include "data/fileio/AudioFileReader.h"

#include <QString>
#include <QList>

class MultiplexedReader : public AudioFileReader
{
    Q_OBJECT

public:
    // I take ownership of readers
    MultiplexedReader(QList<AudioFileReader *> readers);
    virtual ~MultiplexedReader();

    virtual QString getError() const { return m_error; }
    virtual bool isQuicklySeekable() const { return m_quicklySeekable; }

    virtual void getInterleavedFrames(int start, int count,
				      SampleBlock &frames) const;

    virtual int getDecodeCompletion() const;

    virtual bool isUpdating() const;

protected:
    QString m_error;
    bool m_quicklySeekable;
    QList<AudioFileReader *> m_readers;
};

#endif