MidiSequence Class Reference

A Midi sequence that represent a midi file. More...

Public Member Functions
int	getNumEventsForTrack (int trackIndex)
	return the number of events in the track.
MidiEvent &	getEvent (int trackIndex, int eventIndex)
	get a MidiEvent
int	findAt (int trackIndex, int songPosition)
	return the index of the first event not less than songPosition, nil otherwise.
int	findNextAt (int trackIndex, int songPosition)
	return the index of the first event greater than songPosition, nil otherwise.
int	findPreviousAt (int trackIndex, int songPosition)
	return the index of the whose position is just before songPosition, nil otherwise.
void	insertEvent (int trackIndex, MidiEvent event)
	insert a MidiEvent into a track.

Public Attributes
int	format
	midi format type (0|1|2)
int	numTracks
	number of midi Tracks
int	division
	time division: number of ticks per beat
int	ppq
	alias for division (pulses per quarter note)

Detailed Description

A Midi sequence that represent a midi file.

a Midi Sequence is a collection of tracks containing MidiEvents.

Member Function Documentation

findAt()

int MidiSequence::findAt	(	int	trackIndex,
		int	songPosition )

return the index of the first event not less than songPosition, nil otherwise.

Parameters

trackIndex	index of the track (start at 1 and less or equal to numTracks)
songPosition	song position in ticks

findNextAt()

int MidiSequence::findNextAt	(	int	trackIndex,
		int	songPosition )

return the index of the first event greater than songPosition, nil otherwise.

Parameters

trackIndex	index of the track (start at 1 and less or equal to numTracks)
songPosition	song position in ticks

findPreviousAt()

int MidiSequence::findPreviousAt	(	int	trackIndex,
		int	songPosition )

return the index of the whose position is just before songPosition, nil otherwise.

Parameters

trackIndex	index of the track (start at 1 and less or equal to numTracks)
songPosition	song position in ticks

getEvent()

MidiEvent & MidiSequence::getEvent	(	int	trackIndex,
		int	eventIndex )

get a MidiEvent

Parameters

trackIndex	index of the track (start at 1 and less or equal to numTracks)
eventIndex	index of the track (start at 1 and less or equal to getNumEventsForTrack(trackIndex))

getNumEventsForTrack()

int MidiSequence::getNumEventsForTrack

(

int

trackIndex

)

return the number of events in the track.

Parameters

trackIndex

index of the track (start at 1 and less or equal to numTracks)

insertEvent()

void MidiSequence::insertEvent	(	int	trackIndex,
		MidiEvent	event )

insert a MidiEvent into a track.

Parameters

trackIndex	index of the track (start at 1 and less or equal to numTracks)
event	MidiEvent to insert