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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7 This file copyright 2006 Chris Cannam.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #ifndef SV_WAV_FILE_WRITER_H
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17 #define SV_WAV_FILE_WRITER_H
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18
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19 #include <QString>
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20
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21 #ifdef Q_OS_WIN
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22 #include <windows.h>
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23 #define ENABLE_SNDFILE_WINDOWS_PROTOTYPES 1
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24 #endif
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25
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26 #include <sndfile.h>
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27
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28 #include "base/BaseTypes.h"
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29
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30 class DenseTimeValueModel;
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31 class MultiSelection;
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32 class TempWriteFile;
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33
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34 class WavFileWriter
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35 {
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36 public:
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37 /**
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38 * Specify the method used to open the destination file.
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39 *
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40 * If WriteToTemporary, the destination will be opened as a
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41 * temporary file which is moved to the target location when the
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42 * WavFileWriter is closed or deleted (to avoid clobbering an
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43 * existing file with a partially written replacement).
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44 *
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45 * If WriteToTarget, the target file will be opened directly
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46 * (necessary when e.g. doing a series of incremental writes to a
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47 * file while keeping it open for reading).
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48 */
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49 enum FileWriteMode {
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50 WriteToTemporary,
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51 WriteToTarget
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52 };
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53
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54 WavFileWriter(QString path, sv_samplerate_t sampleRate, int channels,
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55 FileWriteMode mode);
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56 virtual ~WavFileWriter();
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57
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58 bool isOK() const;
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59
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60 virtual QString getError() const;
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61
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62 QString getPath() const { return m_path; }
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63
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64 bool writeModel(DenseTimeValueModel *source,
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65 MultiSelection *selection = 0);
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66
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67 /// Write samples from raw arrays; count is per-channel
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68 bool writeSamples(const float *const *samples, sv_frame_t count);
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69
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70 /// As writeSamples, but compatible with WavFileReader api. More expensive.
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71 bool putInterleavedFrames(const floatvec_t &frames);
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72
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73 bool close();
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74
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75 protected:
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76 QString m_path;
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77 sv_samplerate_t m_sampleRate;
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78 int m_channels;
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79 TempWriteFile *m_temp;
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80 SNDFILE *m_file;
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81 QString m_error;
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82
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83 QString getWriteFilename() const;
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84 };
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85
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86
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87 #endif
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