lbajardsilogic@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
lbajardsilogic@0: 
lbajardsilogic@0: /*
lbajardsilogic@0:     Sonic Visualiser
lbajardsilogic@0:     An audio file viewer and annotation editor.
lbajardsilogic@0:     Centre for Digital Music, Queen Mary, University of London.
lbajardsilogic@0:     This file copyright 2006 Chris Cannam.
lbajardsilogic@0:     
lbajardsilogic@0:     This program is free software; you can redistribute it and/or
lbajardsilogic@0:     modify it under the terms of the GNU General Public License as
lbajardsilogic@0:     published by the Free Software Foundation; either version 2 of the
lbajardsilogic@0:     License, or (at your option) any later version.  See the file
lbajardsilogic@0:     COPYING included with this distribution for more information.
lbajardsilogic@0: */
lbajardsilogic@0: 
lbajardsilogic@0: #ifndef _WAV_FILE_READER_H_
lbajardsilogic@0: #define _WAV_FILE_READER_H_
lbajardsilogic@0: 
lbajardsilogic@0: #include "AudioFileReader.h"
lbajardsilogic@0: 
lbajardsilogic@0: #include <sndfile.h>
lbajardsilogic@0: #include <QMutex>
lbajardsilogic@0: 
lbajardsilogic@0: #include <set>
lbajardsilogic@0: 
lbajardsilogic@0: class WavFileReader : public AudioFileReader
lbajardsilogic@0: {
lbajardsilogic@0: public:
lbajardsilogic@0:     WavFileReader(QString path, bool fileUpdating = false);
lbajardsilogic@0:     virtual ~WavFileReader();
lbajardsilogic@0: 
lbajardsilogic@0:     virtual QString getError() const { return m_error; }
lbajardsilogic@0: 
lbajardsilogic@0:     /** 
lbajardsilogic@0:      * Must be safe to call from multiple threads with different
lbajardsilogic@0:      * arguments on the same object at the same time.
lbajardsilogic@0:      */
lbajardsilogic@0:     virtual void getInterleavedFrames(size_t start, size_t count,
lbajardsilogic@0: 				      SampleBlock &frames) const;
lbajardsilogic@0:     
lbajardsilogic@0:     static void getSupportedExtensions(std::set<QString> &extensions);
lbajardsilogic@0: 
lbajardsilogic@0:     bool isUpdating() const { return m_updating; }
lbajardsilogic@0: 
lbajardsilogic@0:     void updateFrameCount();
lbajardsilogic@0:     void updateDone();
lbajardsilogic@0: 
lbajardsilogic@0: protected:
lbajardsilogic@0:     SF_INFO m_fileInfo;
lbajardsilogic@0:     SNDFILE *m_file;
lbajardsilogic@0: 
lbajardsilogic@0:     QString m_path;
lbajardsilogic@0:     QString m_error;
lbajardsilogic@0: 
lbajardsilogic@0:     mutable QMutex m_mutex;
lbajardsilogic@0:     mutable float *m_buffer;
lbajardsilogic@0:     mutable size_t m_bufsiz;
lbajardsilogic@0:     mutable size_t m_lastStart;
lbajardsilogic@0:     mutable size_t m_lastCount;
lbajardsilogic@0: 
lbajardsilogic@0:     bool m_updating;
lbajardsilogic@0: };
lbajardsilogic@0: 
lbajardsilogic@0: #endif