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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
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7 Sonic Annotator
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8 A utility for batch feature extraction from audio files.
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9
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10 Mark Levy, Chris Sutton and Chris Cannam, Queen Mary, University of London.
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11 Copyright 2007-2008 QMUL.
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12
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13 This program is free software; you can redistribute it and/or
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14 modify it under the terms of the GNU General Public License as
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15 published by the Free Software Foundation; either version 2 of the
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16 License, or (at your option) any later version. See the file
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17 COPYING included with this distribution for more information.
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18 */
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19
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20 #ifndef _FILE_FEATURE_WRITER_H_
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21 #define _FILE_FEATURE_WRITER_H_
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22
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23 #include <string>
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24 #include <map>
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25 #include <set>
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26
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27 #include "FeatureWriter.h"
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28
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29 using std::string;
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30 using std::map;
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31 using std::set;
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32 using std::pair;
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33
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34 class QTextStream;
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35 class QFile;
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36
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37 class FileFeatureWriter : public FeatureWriter
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38 {
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39 public:
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40 virtual ~FileFeatureWriter();
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41
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42 virtual ParameterList getSupportedParameters() const;
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43 virtual void setParameters(map<string, string> ¶ms);
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44
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45 virtual void testOutputFile(QString trackId, TransformId transformId);
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46 virtual void flush();
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47 virtual void finish();
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48
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49 protected:
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50 enum FileWriteSupport {
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51 SupportOneFilePerTrackTransform = 1,
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52 SupportOneFilePerTrack = 2,
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53 SupportOneFileTotal = 4,
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54 SupportStdOut = 8
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55 };
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56
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57 FileFeatureWriter(int support, QString extension);
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58 QTextStream *getOutputStream(QString, TransformId);
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59
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60 typedef pair<QString, TransformId> TrackTransformPair;
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61 typedef map<TrackTransformPair, QFile *> FileMap;
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62 typedef map<QFile *, QTextStream *> FileStreamMap;
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63 FileMap m_files;
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64 FileStreamMap m_streams;
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65 QTextStream *m_prevstream;
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66
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67 QString getOutputFilename(QString, TransformId);
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68 QFile *getOutputFile(QString, TransformId);
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69
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70 // subclass can implement this to be called before file is opened for append
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71 virtual void reviewFileForAppending(QString) { }
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72
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73 int m_support;
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74 QString m_extension;
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75 QString m_baseDir;
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76 bool m_manyFiles;
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77 QString m_singleFileName;
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78 bool m_stdout;
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79 bool m_append;
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80 bool m_force;
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81 };
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82
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83 #endif
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