Sequencer Event Definitions
[MIDI Sequencer]

Data Structures

struct  snd_seq_addr
struct  snd_seq_connect
struct  snd_seq_real_time
union  snd_seq_timestamp
struct  snd_seq_ev_note
struct  snd_seq_ev_ctrl
struct  snd_seq_ev_raw8
struct  snd_seq_ev_raw32
struct  snd_seq_ev_ext
struct  snd_seq_result
struct  snd_seq_queue_skew
struct  snd_seq_ev_queue_control
struct  snd_seq_event

Defines

#define SND_SEQ_TIME_STAMP_TICK   (0<<0)
#define SND_SEQ_TIME_STAMP_REAL   (1<<0)
#define SND_SEQ_TIME_STAMP_MASK   (1<<0)
#define SND_SEQ_TIME_MODE_ABS   (0<<1)
#define SND_SEQ_TIME_MODE_REL   (1<<1)
#define SND_SEQ_TIME_MODE_MASK   (1<<1)
#define SND_SEQ_EVENT_LENGTH_FIXED   (0<<2)
#define SND_SEQ_EVENT_LENGTH_VARIABLE   (1<<2)
#define SND_SEQ_EVENT_LENGTH_VARUSR   (2<<2)
#define SND_SEQ_EVENT_LENGTH_MASK   (3<<2)
#define SND_SEQ_PRIORITY_NORMAL   (0<<4)
#define SND_SEQ_PRIORITY_HIGH   (1<<4)
#define SND_SEQ_PRIORITY_MASK   (1<<4)

Typedefs

typedef unsigned char snd_seq_event_type_t
typedef struct snd_seq_addr snd_seq_addr_t
typedef struct snd_seq_connect snd_seq_connect_t
typedef struct snd_seq_real_time snd_seq_real_time_t
typedef unsigned int snd_seq_tick_time_t
typedef union snd_seq_timestamp snd_seq_timestamp_t
typedef struct snd_seq_ev_note snd_seq_ev_note_t
typedef struct snd_seq_ev_ctrl snd_seq_ev_ctrl_t
typedef struct snd_seq_ev_raw8 snd_seq_ev_raw8_t
typedef struct snd_seq_ev_raw32 snd_seq_ev_raw32_t
typedef struct snd_seq_ev_ext snd_seq_ev_ext_t
typedef struct snd_seq_result snd_seq_result_t
typedef struct snd_seq_queue_skew snd_seq_queue_skew_t
typedef struct
snd_seq_ev_queue_control 
snd_seq_ev_queue_control_t
typedef struct snd_seq_event snd_seq_event_t

Enumerations

enum  snd_seq_event_type {
  SND_SEQ_EVENT_SYSTEM = 0, SND_SEQ_EVENT_RESULT, SND_SEQ_EVENT_NOTE = 5, SND_SEQ_EVENT_NOTEON,
  SND_SEQ_EVENT_NOTEOFF, SND_SEQ_EVENT_KEYPRESS, SND_SEQ_EVENT_CONTROLLER = 10, SND_SEQ_EVENT_PGMCHANGE,
  SND_SEQ_EVENT_CHANPRESS, SND_SEQ_EVENT_PITCHBEND, SND_SEQ_EVENT_CONTROL14, SND_SEQ_EVENT_NONREGPARAM,
  SND_SEQ_EVENT_REGPARAM, SND_SEQ_EVENT_SONGPOS = 20, SND_SEQ_EVENT_SONGSEL, SND_SEQ_EVENT_QFRAME,
  SND_SEQ_EVENT_TIMESIGN, SND_SEQ_EVENT_KEYSIGN, SND_SEQ_EVENT_START = 30, SND_SEQ_EVENT_CONTINUE,
  SND_SEQ_EVENT_STOP, SND_SEQ_EVENT_SETPOS_TICK, SND_SEQ_EVENT_SETPOS_TIME, SND_SEQ_EVENT_TEMPO,
  SND_SEQ_EVENT_CLOCK, SND_SEQ_EVENT_TICK, SND_SEQ_EVENT_QUEUE_SKEW, SND_SEQ_EVENT_SYNC_POS,
  SND_SEQ_EVENT_TUNE_REQUEST = 40, SND_SEQ_EVENT_RESET, SND_SEQ_EVENT_SENSING, SND_SEQ_EVENT_ECHO = 50,
  SND_SEQ_EVENT_OSS, SND_SEQ_EVENT_CLIENT_START = 60, SND_SEQ_EVENT_CLIENT_EXIT, SND_SEQ_EVENT_CLIENT_CHANGE,
  SND_SEQ_EVENT_PORT_START, SND_SEQ_EVENT_PORT_EXIT, SND_SEQ_EVENT_PORT_CHANGE, SND_SEQ_EVENT_PORT_SUBSCRIBED,
  SND_SEQ_EVENT_PORT_UNSUBSCRIBED, SND_SEQ_EVENT_USR0 = 90, SND_SEQ_EVENT_USR1, SND_SEQ_EVENT_USR2,
  SND_SEQ_EVENT_USR3, SND_SEQ_EVENT_USR4, SND_SEQ_EVENT_USR5, SND_SEQ_EVENT_USR6,
  SND_SEQ_EVENT_USR7, SND_SEQ_EVENT_USR8, SND_SEQ_EVENT_USR9, SND_SEQ_EVENT_SYSEX = 130,
  SND_SEQ_EVENT_BOUNCE, SND_SEQ_EVENT_USR_VAR0 = 135, SND_SEQ_EVENT_USR_VAR1, SND_SEQ_EVENT_USR_VAR2,
  SND_SEQ_EVENT_USR_VAR3, SND_SEQ_EVENT_USR_VAR4, SND_SEQ_EVENT_NONE = 255
}

Detailed Description

Sequencer Event Definitions


Define Documentation

#define SND_SEQ_EVENT_LENGTH_FIXED   (0<<2)

fixed event size

#define SND_SEQ_EVENT_LENGTH_MASK   (3<<2)

mask for event length bits

#define SND_SEQ_EVENT_LENGTH_VARIABLE   (1<<2)

variable event size

#define SND_SEQ_EVENT_LENGTH_VARUSR   (2<<2)

variable event size - user memory space

#define SND_SEQ_PRIORITY_HIGH   (1<<4)

event should be processed before others

#define SND_SEQ_PRIORITY_MASK   (1<<4)

mask for priority bits

#define SND_SEQ_PRIORITY_NORMAL   (0<<4)

normal priority

#define SND_SEQ_TIME_MODE_ABS   (0<<1)

absolute timestamp

#define SND_SEQ_TIME_MODE_MASK   (1<<1)

mask for time mode bits

#define SND_SEQ_TIME_MODE_REL   (1<<1)

relative to current time

#define SND_SEQ_TIME_STAMP_MASK   (1<<0)

mask for timestamp bits

#define SND_SEQ_TIME_STAMP_REAL   (1<<0)

timestamp in real time

#define SND_SEQ_TIME_STAMP_TICK   (0<<0)

Event mode flags

NOTE: only 8 bits available! timestamp in clock ticks


Typedef Documentation

typedef struct snd_seq_addr snd_seq_addr_t

Sequencer event address

Connection (subscription) between ports

Controller event

external stored data

Note event

queue timer control

generic set of integers (3x32 bit)

generic set of bytes (12x8 bit)

Sequencer event

typedef unsigned char snd_seq_event_type_t

Sequencer event data type

Queue skew values

Real-time data record

Result events

typedef unsigned int snd_seq_tick_time_t

(MIDI) Tick-time data record

unioned time stamp


Enumeration Type Documentation

Sequencer event type

Enumerator:
SND_SEQ_EVENT_SYSTEM 

system status; event data type = snd_seq_result_t

SND_SEQ_EVENT_RESULT 

returned result status; event data type = snd_seq_result_t

SND_SEQ_EVENT_NOTE 

note on and off with duration; event data type = snd_seq_ev_note_t

SND_SEQ_EVENT_NOTEON 

note on; event data type = snd_seq_ev_note_t

SND_SEQ_EVENT_NOTEOFF 

note off; event data type = snd_seq_ev_note_t

SND_SEQ_EVENT_KEYPRESS 

key pressure change (aftertouch); event data type = snd_seq_ev_note_t

SND_SEQ_EVENT_CONTROLLER 

controller; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_PGMCHANGE 

program change; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_CHANPRESS 

channel pressure; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_PITCHBEND 

pitchwheel; event data type = snd_seq_ev_ctrl_t; data is from -8192 to 8191)

SND_SEQ_EVENT_CONTROL14 

14 bit controller value; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_NONREGPARAM 

14 bit NRPN; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_REGPARAM 

14 bit RPN; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_SONGPOS 

SPP with LSB and MSB values; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_SONGSEL 

Song Select with song ID number; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_QFRAME 

midi time code quarter frame; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_TIMESIGN 

SMF Time Signature event; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_KEYSIGN 

SMF Key Signature event; event data type = snd_seq_ev_ctrl_t

SND_SEQ_EVENT_START 

MIDI Real Time Start message; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_CONTINUE 

MIDI Real Time Continue message; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_STOP 

MIDI Real Time Stop message; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_SETPOS_TICK 

Set tick queue position; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_SETPOS_TIME 

Set real-time queue position; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_TEMPO 

(SMF) Tempo event; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_CLOCK 

MIDI Real Time Clock message; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_TICK 

MIDI Real Time Tick message; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_QUEUE_SKEW 

Queue timer skew; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_SYNC_POS 

Sync position changed; event data type = snd_seq_ev_queue_control_t

SND_SEQ_EVENT_TUNE_REQUEST 

Tune request; event data type = none

SND_SEQ_EVENT_RESET 

Reset to power-on state; event data type = none

SND_SEQ_EVENT_SENSING 

Active sensing event; event data type = none

SND_SEQ_EVENT_ECHO 

Echo-back event; event data type = any type

SND_SEQ_EVENT_OSS 

OSS emulation raw event; event data type = any type

SND_SEQ_EVENT_CLIENT_START 

New client has connected; event data type = snd_seq_addr_t

SND_SEQ_EVENT_CLIENT_EXIT 

Client has left the system; event data type = snd_seq_addr_t

SND_SEQ_EVENT_CLIENT_CHANGE 

Client status/info has changed; event data type = snd_seq_addr_t

SND_SEQ_EVENT_PORT_START 

New port was created; event data type = snd_seq_addr_t

SND_SEQ_EVENT_PORT_EXIT 

Port was deleted from system; event data type = snd_seq_addr_t

SND_SEQ_EVENT_PORT_CHANGE 

Port status/info has changed; event data type = snd_seq_addr_t

SND_SEQ_EVENT_PORT_SUBSCRIBED 

Ports connected; event data type = snd_seq_connect_t

SND_SEQ_EVENT_PORT_UNSUBSCRIBED 

Ports disconnected; event data type = snd_seq_connect_t

SND_SEQ_EVENT_USR0 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_USR1 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_USR2 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_USR3 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_USR4 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_USR5 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_USR6 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_USR7 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_USR8 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_USR9 

user-defined event; event data type = any (fixed size)

SND_SEQ_EVENT_SYSEX 

system exclusive data (variable length); event data type = snd_seq_ev_ext_t

SND_SEQ_EVENT_BOUNCE 

error event; event data type = snd_seq_ev_ext_t

SND_SEQ_EVENT_USR_VAR0 

reserved for user apps; event data type = snd_seq_ev_ext_t

SND_SEQ_EVENT_USR_VAR1 

reserved for user apps; event data type = snd_seq_ev_ext_t

SND_SEQ_EVENT_USR_VAR2 

reserved for user apps; event data type = snd_seq_ev_ext_t

SND_SEQ_EVENT_USR_VAR3 

reserved for user apps; event data type = snd_seq_ev_ext_t

SND_SEQ_EVENT_USR_VAR4 

reserved for user apps; event data type = snd_seq_ev_ext_t

SND_SEQ_EVENT_NONE 

NOP; ignored in any case

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