annotate data/fileio/WavFileReader.h @ 228:f02989f7e160

...
author Chris Cannam
date Mon, 12 Feb 2007 13:09:31 +0000
parents 570794f6f6a7
children e08f486e8d8c
rev   line source
Chris@148 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@148 2
Chris@148 3 /*
Chris@148 4 Sonic Visualiser
Chris@148 5 An audio file viewer and annotation editor.
Chris@148 6 Centre for Digital Music, Queen Mary, University of London.
Chris@148 7 This file copyright 2006 Chris Cannam.
Chris@148 8
Chris@148 9 This program is free software; you can redistribute it and/or
Chris@148 10 modify it under the terms of the GNU General Public License as
Chris@148 11 published by the Free Software Foundation; either version 2 of the
Chris@148 12 License, or (at your option) any later version. See the file
Chris@148 13 COPYING included with this distribution for more information.
Chris@148 14 */
Chris@148 15
Chris@148 16 #ifndef _WAV_FILE_READER_H_
Chris@148 17 #define _WAV_FILE_READER_H_
Chris@148 18
Chris@148 19 #include "AudioFileReader.h"
Chris@148 20
Chris@148 21 #include <sndfile.h>
Chris@148 22 #include <QMutex>
Chris@148 23
Chris@157 24 #include <set>
Chris@157 25
Chris@148 26 class WavFileReader : public AudioFileReader
Chris@148 27 {
Chris@148 28 public:
Chris@176 29 WavFileReader(QString path, bool fileUpdating = false);
Chris@148 30 virtual ~WavFileReader();
Chris@148 31
Chris@148 32 virtual QString getError() const { return m_error; }
Chris@148 33
Chris@148 34 /**
Chris@148 35 * Must be safe to call from multiple threads with different
Chris@148 36 * arguments on the same object at the same time.
Chris@148 37 */
Chris@148 38 virtual void getInterleavedFrames(size_t start, size_t count,
Chris@148 39 SampleBlock &frames) const;
Chris@148 40
Chris@157 41 static void getSupportedExtensions(std::set<QString> &extensions);
Chris@157 42
Chris@176 43 bool isUpdating() const { return m_updating; }
Chris@176 44
Chris@175 45 void updateFrameCount();
Chris@176 46 void updateDone();
Chris@175 47
Chris@148 48 protected:
Chris@148 49 SF_INFO m_fileInfo;
Chris@148 50 SNDFILE *m_file;
Chris@148 51
Chris@148 52 QString m_path;
Chris@148 53 QString m_error;
Chris@148 54
Chris@148 55 mutable QMutex m_mutex;
Chris@148 56 mutable float *m_buffer;
Chris@148 57 mutable size_t m_bufsiz;
Chris@148 58 mutable size_t m_lastStart;
Chris@148 59 mutable size_t m_lastCount;
Chris@176 60
Chris@176 61 bool m_updating;
Chris@148 62 };
Chris@148 63
Chris@148 64 #endif