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/*
MIDI File Definitions
*/
/* MIDI command codes */
typedef enum {
/* Channel voice messages */
NoteOff = 0x80,
NoteOn = 0x90,
PolyphonicKeyPressure = 0xA0,
ControlChange = 0xB0,
ProgramChange = 0xC0,
ChannelPressure = 0xD0,
PitchBend = 0xE0,
/* Channel mode messages */
ChannelMode = 0xB8,
/* System messages */
SystemExclusive = 0xF0,
SystemCommon = 0xF0,
SystemExclusivePacket = 0xF7,
SystemRealTime = 0xF8,
SystemStartCurrentSequence = 0xFA,
SystemContinueCurrentSequence = 0xFB,
SystemStop = 0xFC,
/* MIDI file-only messages */
FileMetaEvent = 0xFF
} midi_command;
/* MIDI file meta-event codes */
typedef enum {
SequenceNumberMetaEvent = 0,
TextMetaEvent = 1,
CopyrightMetaEvent = 2,
TrackTitleMetaEvent = 3,
TrackInstrumentNameMetaEvent = 4,
LyricMetaEvent = 5,
MarkerMetaEvent = 6,
CuePointMetaEvent = 7,
ChannelPrefixMetaEvent = 0x20,
PortMetaEvent = 0x21,
EndTrackMetaEvent = 0x2F,
SetTempoMetaEvent = 0x51,
SMPTEOffsetMetaEvent = 0x54,
TimeSignatureMetaEvent = 0x58,
KeySignatureMetaEvent = 0x59,
SequencerSpecificMetaEvent = 0x7F
} midifile_meta_event;
/* The following structures are for in-memory manipulation of MIDI
file components and must not be used for reading or writing
MIDI files to external media. MIDI files must be written in
big-endian byte order with no padding to word boundaries and
I/O code must comply with this format regardless of the host's
in-memory representation. */
/* MIDI file header */
#define MIDI_Header_Sentinel "MThd"
struct mhead {
char chunktype[4]; /* Chunk type: "MThd" */
long length; /* Length: 6 */
short format; /* File format */
short ntrks; /* Number of tracks in file */
short division; /* Time division */
};
/* MIDI track header */
#define MIDI_Track_Sentinel "MTrk"
struct mtrack {
char chunktype[4]; /* Chunk type: "MTrk" */
long length; /* Length of track */
};
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