AgsOssMidiin

AgsOssMidiin — Input from sequencer

Stability Level

Stable, unless otherwise indicated

Functions

#define AGS_OSS_MIDIIN_GET_OBJ_MUTEX()
GQuark ags_oss_midiin_error_quark ()
gboolean ags_oss_midiin_test_flags ()
void ags_oss_midiin_set_flags ()
void ags_oss_midiin_unset_flags ()
void ags_oss_midiin_switch_buffer_flag ()
AgsOssMidiin * ags_oss_midiin_new ()

Properties

gpointer attack Read
double bpm Read / Write
gpointer buffer Read
double delay-factor Read / Write
char * device Read / Write

Types and Values

#define AGS_OSS_MIDIIN_DEFAULT_OSS_DEVICE
#define AGS_OSS_MIDIIN_DEFAULT_OSS_MIXER_DEVICE
#define AGS_OSS_MIDIIN_DEFAULT_APP_BUFFER_SIZE
#define AGS_OSS_MIDIIN_DEFAULT_BACKEND_BUFFER_SIZE
#define AGS_OSS_MIDIIN_DEFAULT_BUFFER_SIZE
enum AgsOssMidiinFlags
enum AgsOssMidiinAppBufferMode
enum AgsOssMidiinBackendBufferMode
enum AgsOssMidiinSyncFlags
#define AGS_OSS_MIDIIN_ERROR
enum AgsOssMidiinError

Object Hierarchy

    GFlags
    ╰── AgsOssMidiinFlags
    GObject
    ╰── AgsOssMidiin

Includes

#include <ags/audio/ags_oss_midiin.h>

Description

AgsOssMidiin represents a sequencer and supports midi input.

Functions

AGS_OSS_MIDIIN_GET_OBJ_MUTEX()

#define AGS_OSS_MIDIIN_GET_OBJ_MUTEX(obj) (&(((AgsOssMidiin *) obj)->obj_mutex))

ags_oss_midiin_error_quark ()

GQuark
ags_oss_midiin_error_quark ();

ags_oss_midiin_test_flags ()

gboolean
ags_oss_midiin_test_flags (AgsOssMidiin *oss_midiin,
                           AgsOssMidiinFlags flags);

Test flags to be set on oss_midiin .

Parameters

oss_midiin

the AgsOssMidiin

  

flags

the flags

  

Returns

TRUE if flags are set, else FALSE

Since: 3.13.2

ags_oss_midiin_set_flags ()

void
ags_oss_midiin_set_flags (AgsOssMidiin *oss_midiin,
                          AgsOssMidiinFlags flags);

Enable a feature of oss_midiin .

Parameters

oss_midiin

the AgsOssMidiin

  

flags

see AgsOssMidiinFlags

  

Since: 3.13.2

ags_oss_midiin_unset_flags ()

void
ags_oss_midiin_unset_flags (AgsOssMidiin *oss_midiin,
                            AgsOssMidiinFlags flags);

Disable a feature of oss_midiin .

Parameters

oss_midiin

the AgsOssMidiin

  

flags

see AgsOssMidiinFlags

  

Since: 3.13.2

ags_oss_midiin_switch_buffer_flag ()

void
ags_oss_midiin_switch_buffer_flag (AgsOssMidiin *oss_midiin);

The buffer flag indicates the currently played buffer.

Parameters

oss_midiin

the AgsOssMidiin

  

Since: 3.13.2

ags_oss_midiin_new ()

AgsOssMidiin *
ags_oss_midiin_new ();

Creates a new instance of AgsOssMidiin.

Returns

the new AgsOssMidiin

Since: 3.13.2

Types and Values

AGS_OSS_MIDIIN_DEFAULT_OSS_DEVICE

#define AGS_OSS_MIDIIN_DEFAULT_OSS_DEVICE "/dev/midi00"

AGS_OSS_MIDIIN_DEFAULT_OSS_MIXER_DEVICE

#define AGS_OSS_MIDIIN_DEFAULT_OSS_MIXER_DEVICE "/dev/mixer"

AGS_OSS_MIDIIN_DEFAULT_APP_BUFFER_SIZE

#define AGS_OSS_MIDIIN_DEFAULT_APP_BUFFER_SIZE (4)

AGS_OSS_MIDIIN_DEFAULT_BACKEND_BUFFER_SIZE

#define AGS_OSS_MIDIIN_DEFAULT_BACKEND_BUFFER_SIZE (8)

AGS_OSS_MIDIIN_DEFAULT_BUFFER_SIZE

#define AGS_OSS_MIDIIN_DEFAULT_BUFFER_SIZE (4096)

enum AgsOssMidiinFlags

Enum values to control the behavior or indicate internal state of AgsOssMidiin by enable/disable as flags.

Members

AGS_OSS_MIDIIN_INITIALIZED

recording is initialized

  

AGS_OSS_MIDIIN_START_RECORD

just started recording

  

AGS_OSS_MIDIIN_RECORD

is recording

  

AGS_OSS_MIDIIN_SHUTDOWN

stop recording

  

AGS_OSS_MIDIIN_NONBLOCKING

do non-blocking calls

  

AGS_OSS_MIDIIN_ATTACK_FIRST

use first attack, instead of second one

  

enum AgsOssMidiinAppBufferMode

Enum values to indicate internal state of AgsOssMidiin application buffer by setting mode.

Members

AGS_OSS_MIDIIN_APP_BUFFER_0

ring-buffer 0

  

AGS_OSS_MIDIIN_APP_BUFFER_1

ring-buffer 1

  

AGS_OSS_MIDIIN_APP_BUFFER_2

ring-buffer 2

  

AGS_OSS_MIDIIN_APP_BUFFER_3

ring-buffer 3

  

enum AgsOssMidiinBackendBufferMode

Enum values to indicate internal state of AgsOssMidiin backend buffer by setting mode.

Members

AGS_OSS_MIDIIN_BACKEND_BUFFER_0

ring-buffer 0

  

AGS_OSS_MIDIIN_BACKEND_BUFFER_1

ring-buffer 1

  

AGS_OSS_MIDIIN_BACKEND_BUFFER_2

ring-buffer 2

  

AGS_OSS_MIDIIN_BACKEND_BUFFER_3

ring-buffer 3

  

AGS_OSS_MIDIIN_BACKEND_BUFFER_4

ring-buffer 4

  

AGS_OSS_MIDIIN_BACKEND_BUFFER_5

ring-buffer 5

  

AGS_OSS_MIDIIN_BACKEND_BUFFER_6

ring-buffer 6

  

AGS_OSS_MIDIIN_BACKEND_BUFFER_7

ring-buffer 7

  

enum AgsOssMidiinSyncFlags

Enum values to control the synchronization between sequencer and poll.

Members

AGS_OSS_MIDIIN_PASS_THROUGH

do not sync

  

AGS_OSS_MIDIIN_INITIAL_POLL

initial poll

  

AGS_OSS_MIDIIN_POLL_WAIT

sync wait, sequencer conditional lock

  

AGS_OSS_MIDIIN_POLL_DONE

sync done, sequencer conditional lock

  

AGS_OSS_MIDIIN_POLL_FINISH_WAIT

sync wait, client conditional lock

  

AGS_OSS_MIDIIN_POLL_FINISH_DONE

sync done, client conditional lock

  

AGS_OSS_MIDIIN_POLL_SWITCH_BUFFER

switch buffer

  

AGS_OSS_MIDIIN_ERROR

#define AGS_OSS_MIDIIN_ERROR (ags_oss_midiin_error_quark())

enum AgsOssMidiinError

Members

AGS_OSS_MIDIIN_ERROR_LOCKED_SEQUENCER

    

Property Details

The “attack” property

  “attack”                   gpointer

Attack of the buffer

Owner: AgsOssMidiin

Flags: Read

Since: 3.13.2

The “bpm” property

  “bpm”                      double

Beats per minute

Owner: AgsOssMidiin

Flags: Read / Write

Allowed values: [1,240]

Default value: 120

Since: 3.13.2

The “buffer” property

  “buffer”                   gpointer

The buffer

Owner: AgsOssMidiin

Flags: Read

Since: 3.13.2

The “delay-factor” property

  “delay-factor”             double

tact

Owner: AgsOssMidiin

Flags: Read / Write

Allowed values: [0,16]

Default value: 1

Since: 3.13.2

The “device” property

  “device”                   char *

The OSS sequencer indentifier

Owner: AgsOssMidiin

Flags: Read / Write

Default value: "/dev/midi00"

Since: 3.13.2

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