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100 lines
2.8 KiB
100 lines
2.8 KiB
/* midfile.h - function which reads a midi file,and creates the track classes
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This file is part of LibKMid 0.9.5
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Copyright (C) 1997,98,99,2000 Antonio Larrosa Jimenez
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LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libtdemid.html
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
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***************************************************************************/
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#ifndef _MIDFILE_H
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#define _MIDFILE_H
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#include <libtdemid/dattypes.h>
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#include <libtdemid/track.h>
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#include <stdio.h>
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#include <tdelibs_export.h>
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/**
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* Contains all the information about a MIDI file.
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*
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* @short All the information about a MIDI file.
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* @version 0.9.5 17/01/2000
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* @author Antonio Larrosa Jimenez <larrosa@kde.org>
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*/
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struct MidiFileInfo
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{
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/**
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* Format of MIDI file.
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*/
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int format;
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/**
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* Number of tracks.
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*/
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int ntracks;
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/**
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* Ticks per cuarter note.
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*/
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int ticksPerCuarterNote;
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/**
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* Total number of MIDI ticks
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*/
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ulong ticksTotal;
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/**
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* Total number of milliseconds
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*/
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double millisecsTotal;
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ulong ticksPlayed;
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/**
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* Patches used in the MIDI file.
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*
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* In each position of the array it stores the number of times the
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* corresponding patch is used. So, if a MIDI file plays 782 notes
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* with a piano, patchesUsed[0] will store 782. In the same way,
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* if it doesn't use the Music Box patch, patchesUsed[10] will be 0.
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*
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*/
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int patchesUsed[256];
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};
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double KMID_EXPORT tempoToMetronomeTempo(ulong x);
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double metronomeTempoToTempo(ulong x);
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/**
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* Reads a midi file.
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*
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* @param name the filename of the midi file to load.
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* @param info a pointer to the MidiFileInfo struct that will be
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* filled with the information of the loaded file.
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* @param ok return status.
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* @return an array of MidiTrack objects with the contents of the file.
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*/
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MidiTrack **readMidiFile( const char *name, MidiFileInfo *info, int &ok);
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void parseInfoData( MidiFileInfo *info, MidiTrack **tracks, float ratioTempo);
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void parsePatchesUsed( MidiTrack **tracks, MidiFileInfo *info, int gm);
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#endif
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