importmidi.h

Audacity是一款用於錄音和編輯聲音的、免費的開放源碼軟體。它可以執行於Mac OS X、Microsoft Windows、GNU/Linux和其它作業系統

/**********************************************************************

  Audacity: A Digital Audio Editor

  ImportMIDI.h

  Dominic Mazzoni

**********************************************************************/

#ifndef _IMPORT_MIDI_
#define _IMPORT_MIDI_

class NoteTrack;

bool ImportMIDI(wxString fName, NoteTrack * dest);

class MIDIParser {
 public:
   MIDIParser();

   void Parse();

   unsigned char *buffer;
   int bufferLen;
   int index;

   NoteTrack *noteTrack;

   int midifile_error;

   int keys[16][128];
   int division;
   double tempo;

 private:

   int check_aborted(void);

   int Mf_getc(void);
   void Mf_error(char *);
   void Mf_on(int, int, int);
   void Mf_off(int, int, int);
   void Mf_header(int, int, int);
   void Mf_tempo(int);

   void Mf_starttrack(void) {}
   void Mf_endtrack(void) {}
   void Mf_eot(void) {}
   void Mf_pressure(int, int, int) {}
   void Mf_controller(int, int, int) {}
   void Mf_pitchbend(int, int, int) {}
   void Mf_program(int, int) {}
   void Mf_chanpressure(int, int) {}
   void Mf_sysex(int, char *) {}
   void Mf_arbitrary(int, char *) {}
   void Mf_metamisc(int, int, char *) {}
   void Mf_seqnum(int) {}
   void Mf_smpte(int, int, int, int, int) {}
   void Mf_timesig(int, int, int, int) {}
   void Mf_keysig(int, int) {}
   void Mf_sqspecific(int, char *) {}
   void Mf_text(int, int, char *) {}

   int Mf_nomerge;              /* 1 => continue'ed system exclusives are */
   /* not collapsed. */
   long Mf_currtime;            /* current time in delta-time units */
   int Mf_skipinit;

   long Mf_toberead;

   int abort_flag;

   long readvarinum(void);
   long read32bit(void);
   int read16bit(void);
   void msgenlarge(void);
   char *msg(void);
   int readheader(void);
   void readtrack(void);
   void sysex(void);
   void msginit(void);
   int egetc(void);
   int msgleng(void);

   int readmt(char *, int);
   long to32bit(int, int, int, int);
   int to16bit(int, int);
   void mferror(char *);
   void badbyte(int);
   void metaevent(int);
   void msgadd(int);
   void chanmessage(int, int, int);

   char *Msgbuff;               /* message buffer */
   int Msgsize;                 /* Size of currently allocated Msg */
   int Msgindex;                /* index of next available location in Msg */
};

#endif

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