MIDIFileWriter Class Reference

Write a MIDI file. More...

#include <MIDIFileWriter.h>

Collaboration diagram for MIDIFileWriter:

Public Member Functions
	MIDIFileWriter (QString path, const NoteExportable *exportable, sv_samplerate_t sampleRate, float tempo=120.f)
	~MIDIFileWriter ()
bool	isOK () const
QString	getError () const
void	write ()

Protected Types
enum	MIDIFileFormatType { MIDI_SINGLE_TRACK_FILE = 0x00, MIDI_SIMULTANEOUS_TRACK_FILE = 0x01, MIDI_SEQUENTIAL_TRACK_FILE = 0x02, MIDI_FILE_BAD_FORMAT = 0xFF }
typedef std::vector< MIDIEvent * >	MIDITrack
typedef std::map< unsigned int, MIDITrack >	MIDIComposition

Protected Member Functions
std::string	intToMIDIBytes (int number) const
std::string	longToMIDIBytes (unsigned long number) const
std::string	longToVarBuffer (unsigned long number) const
unsigned long	getMIDITimeForTime (RealTime t) const
bool	writeHeader ()
bool	writeTrack (int track)
bool	writeComposition ()
bool	convert ()

Protected Attributes
QString	m_path
const NoteExportable *	m_exportable
sv_samplerate_t	m_sampleRate
float	m_tempo
int	m_timingDivision
MIDIFileFormatType	m_format
unsigned int	m_numberOfTracks
MIDIComposition	m_midiComposition
std::ofstream *	m_midiFile
QString	m_error

Detailed Description

Write a MIDI file.

This includes file write code for generic simultaneous-track MIDI files, but the conversion stage only supports a single-track MIDI file with fixed tempo, time signature and timing division.

Definition at line 44 of file MIDIFileWriter.h.

Member Typedef Documentation

typedef std::vector<MIDIEvent *> MIDIFileWriter::MIDITrack

protected

Definition at line 59 of file MIDIFileWriter.h.

typedef std::map<unsigned int, MIDITrack> MIDIFileWriter::MIDIComposition

protected

Definition at line 60 of file MIDIFileWriter.h.

Member Enumeration Documentation

enum MIDIFileWriter::MIDIFileFormatType

protected

Enumerator
MIDI_SINGLE_TRACK_FILE
MIDI_SIMULTANEOUS_TRACK_FILE
MIDI_SEQUENTIAL_TRACK_FILE
MIDI_FILE_BAD_FORMAT

Definition at line 62 of file MIDIFileWriter.h.

Constructor & Destructor Documentation

MIDIFileWriter::MIDIFileWriter	(	QString	path,
		const NoteExportable *	exportable,
		sv_samplerate_t	sampleRate,
		float	tempo = 120.f
	)

Definition at line 44 of file MIDIFileWriter.cpp.

References convert(), and m_error.

MIDIFileWriter::~MIDIFileWriter

(

)

Definition at line 57 of file MIDIFileWriter.cpp.

References m_midiComposition.

Member Function Documentation

bool MIDIFileWriter::isOK

(

)

const

Definition at line 74 of file MIDIFileWriter.cpp.

References m_error.

QString MIDIFileWriter::getError

(

)

const

Definition at line 80 of file MIDIFileWriter.cpp.

References m_error.

void MIDIFileWriter::write

(

)

Definition at line 86 of file MIDIFileWriter.cpp.

References writeComposition().

string MIDIFileWriter::intToMIDIBytes ( int  number ) const

protected

Definition at line 92 of file MIDIFileWriter.cpp.

Referenced by writeHeader().

string MIDIFileWriter::longToMIDIBytes ( unsigned long  number ) const

protected

Definition at line 107 of file MIDIFileWriter.cpp.

Referenced by writeTrack().

string MIDIFileWriter::longToVarBuffer ( unsigned long  number ) const

protected

Definition at line 132 of file MIDIFileWriter.cpp.

Referenced by writeTrack().

unsigned long MIDIFileWriter::getMIDITimeForTime ( RealTime  t ) const

protected

bool MIDIFileWriter::writeHeader ( )

protected

Definition at line 166 of file MIDIFileWriter.cpp.

References intToMIDIBytes(), m_format, m_midiFile, m_numberOfTracks, m_timingDivision, and MIDIConstants::MIDI_FILE_HEADER.

Referenced by writeComposition().

bool MIDIFileWriter::writeTrack ( int  track )

protected

Definition at line 188 of file MIDIFileWriter.cpp.

References longToMIDIBytes(), longToVarBuffer(), m_midiComposition, m_midiFile, MIDIConstants::MIDI_CHNL_AFTERTOUCH, MIDIConstants::MIDI_CTRL_CHANGE, MIDIConstants::MIDI_FILE_META_EVENT, MIDIConstants::MIDI_NOTE_OFF, MIDIConstants::MIDI_NOTE_ON, MIDIConstants::MIDI_PITCH_BEND, MIDIConstants::MIDI_POLY_AFTERTOUCH, MIDIConstants::MIDI_PROG_CHANGE, MIDIConstants::MIDI_SYSTEM_EXCLUSIVE, and MIDIConstants::MIDI_TRACK_HEADER.

Referenced by writeComposition().

bool MIDIFileWriter::writeComposition ( )

protected

Definition at line 282 of file MIDIFileWriter.cpp.

References m_error, m_midiFile, m_numberOfTracks, m_path, writeHeader(), and writeTrack().

Referenced by write().

bool MIDIFileWriter::convert ( )

protected

Definition at line 318 of file MIDIFileWriter.cpp.

References NoteExportable::getNotes(), m_exportable, m_format, m_midiComposition, m_numberOfTracks, m_sampleRate, m_tempo, m_timingDivision, MIDIConstants::MIDI_CUE_POINT, MIDIConstants::MIDI_END_OF_TRACK, MIDIConstants::MIDI_FILE_META_EVENT, MIDIConstants::MIDI_NOTE_OFF, MIDIConstants::MIDI_NOTE_ON, MIDIConstants::MIDI_SET_TEMPO, MIDI_SINGLE_TRACK_FILE, and notes.

Referenced by MIDIFileWriter().

Member Data Documentation

QString MIDIFileWriter::m_path

protected

Definition at line 81 of file MIDIFileWriter.h.

Referenced by writeComposition().

const NoteExportable* MIDIFileWriter::m_exportable

protected

Definition at line 82 of file MIDIFileWriter.h.

Referenced by convert().

sv_samplerate_t MIDIFileWriter::m_sampleRate

protected

Definition at line 83 of file MIDIFileWriter.h.

Referenced by convert().

float MIDIFileWriter::m_tempo

protected

Definition at line 84 of file MIDIFileWriter.h.

Referenced by convert().

int MIDIFileWriter::m_timingDivision

protected

Definition at line 85 of file MIDIFileWriter.h.

Referenced by convert(), and writeHeader().

MIDIFileFormatType MIDIFileWriter::m_format

protected

Definition at line 86 of file MIDIFileWriter.h.

Referenced by convert(), and writeHeader().

unsigned int MIDIFileWriter::m_numberOfTracks

protected

Definition at line 87 of file MIDIFileWriter.h.

Referenced by convert(), writeComposition(), and writeHeader().

MIDIComposition MIDIFileWriter::m_midiComposition

protected

Definition at line 89 of file MIDIFileWriter.h.

Referenced by convert(), writeTrack(), and ~MIDIFileWriter().

std::ofstream* MIDIFileWriter::m_midiFile

protected

Definition at line 91 of file MIDIFileWriter.h.

Referenced by writeComposition(), writeHeader(), and writeTrack().

QString MIDIFileWriter::m_error

protected

Definition at line 92 of file MIDIFileWriter.h.

Referenced by getError(), isOK(), MIDIFileWriter(), and writeComposition().

---

The documentation for this class was generated from the following files:

• MIDIFileWriter.h
• MIDIFileWriter.cpp