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FilterAUDIOFILE.h

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00001 //LabPlot : FilterAUDIOFILE.h
00002 
00003 #ifndef FILTERAUDIOFILE_H
00004 #define FILTERAUDIOFILE_H
00005 
00006 #include <qstring.h>
00007 #include <qstringlist.h>
00008 
00009 #include <audiofile.h>
00010 
00011 class FilterAUDIOFILE
00012 {
00013 public:
00014         FilterAUDIOFILE(QString filename=0);
00015         bool fileOK() { return fileok; }
00016         QString description() { return QString("TODO"); }       // TODO
00017         int frameCount() { return (int) afGetFrameCount(file, AF_DEFAULT_TRACK); }
00018         int channelCount() { return afGetVirtualChannels(file, AF_DEFAULT_TRACK); }
00019         QString Name() { return QString((char *)afQueryPointer(AF_QUERYTYPE_FILEFMT,AF_QUERY_NAME,format,0,0)); }
00020         QString Desc() { return QString((char *)afQueryPointer(AF_QUERYTYPE_FILEFMT,AF_QUERY_DESC,format,0,0)); }
00021         QString sampleFormat();
00022         QString Format(int f);
00023         int sampleWidth();
00024         double sampleRate() { return afGetRate(file, AF_DEFAULT_TRACK); }
00025         double frameSize() { return (double) afGetVirtualFrameSize(file, AF_DEFAULT_TRACK, 1); }
00026         unsigned int virtualFrameSize() { return (unsigned int)afGetVirtualFrameSize(file,AF_DEFAULT_TRACK, 1);}
00027         double *Data();
00028 
00029 private:
00030         QString filename;                       // file
00031         bool fileok;                            // is an audio file and readable
00032         AFfilehandle file;
00033         int format;                             // numeric format id
00034 };
00035 
00036 #endif //FILTERAUDIOFILE_H

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