AgsAudioUnitDevin: Advanced Gtk+ Sequencer Audio Reference Manual

AgsAudioUnitDevin

AgsAudioUnitDevin — Output to soundcard

Stability Level

Stable, unless otherwise indicated

Functions

#define	AGS_AUDIO_UNIT_DEVIN_GET_OBJ_MUTEX()
GQuark	ags_audio_unit_devin_error_quark ()
gboolean	ags_audio_unit_devin_test_flags ()
void	ags_audio_unit_devin_set_flags ()
void	ags_audio_unit_devin_unset_flags ()
void	ags_audio_unit_devin_switch_buffer_flag ()
void	ags_audio_unit_devin_adjust_delay_and_attack ()
void	ags_audio_unit_devin_realloc_buffer ()
AgsAudioUnitDevin *	ags_audio_unit_devin_new ()

Properties

gpointer	attack	Read
AgsAudioUnitClient *	audio-unit-client	Read / Write
gpointer	audio-unit-port	Read / Write
double	bpm	Read / Write
gpointer	buffer	Read
guint	buffer-size	Read / Write
double	delay-factor	Read / Write
char *	device	Read / Write
guint	dsp-channels	Read / Write
guint	format	Read / Write
guint	pcm-channels	Read / Write
guint	samplerate	Read / Write

Types and Values

#define	AGS_AUDIO_UNIT_DEVIN_DEFAULT_APP_BUFFER_SIZE
enum	AgsAudioUnitDevinFlags
enum	AgsAudioUnitDevinAppBufferMode
enum	AgsAudioUnitDevinSyncFlags
#define	AGS_AUDIO_UNIT_DEVIN_ERROR
enum	AgsAudioUnitDevinError

Object Hierarchy

    GFlags
    ╰── AgsAudioUnitDevinFlags
    GObject
    ╰── AgsAudioUnitDevin

Includes

#include <ags/audio/audio-unit/ags_audio_unit_devin.h>

Description

AgsAudioUnitDevin represents a soundcard and supports output.

Functions

AGS_AUDIO_UNIT_DEVIN_GET_OBJ_MUTEX()

#define AGS_AUDIO_UNIT_DEVIN_GET_OBJ_MUTEX(obj) (&(((AgsAudioUnitDevin *) obj)->obj_mutex))

ags_audio_unit_devin_error_quark ()

GQuark
ags_audio_unit_devin_error_quark ();

ags_audio_unit_devin_test_flags ()

gboolean
ags_audio_unit_devin_test_flags (AgsAudioUnitDevin *audio_unit_devin,
                                 guint flags);

Test flags to be set on audio_unit_devin .

Parameters

audio_unit_devin	the AgsAudioUnitDevin
flags	the flags

Returns

TRUE if flags are set, else FALSE

Since: 3.0.0

ags_audio_unit_devin_set_flags ()

void
ags_audio_unit_devin_set_flags (AgsAudioUnitDevin *audio_unit_devin,
                                guint flags);

Enable a feature of audio_unit_devin .

Parameters

audio_unit_devin	the AgsAudioUnitDevin
flags	see AgsAudioUnitDevinFlags

Since: 3.0.0

ags_audio_unit_devin_unset_flags ()

void
ags_audio_unit_devin_unset_flags (AgsAudioUnitDevin *audio_unit_devin,
                                  guint flags);

Disable a feature of audio_unit_devin .

Parameters

audio_unit_devin	the AgsAudioUnitDevin
flags	see AgsAudioUnitDevinFlags

Since: 3.0.0

ags_audio_unit_devin_switch_buffer_flag ()

void
ags_audio_unit_devin_switch_buffer_flag
                               (AgsAudioUnitDevin *audio_unit_devin);

The buffer flag indicates the currently played buffer.

Parameters

audio_unit_devin

an AgsAudioUnitDevin

Since: 3.0.0

ags_audio_unit_devin_adjust_delay_and_attack ()

void
ags_audio_unit_devin_adjust_delay_and_attack
                               (AgsAudioUnitDevin *audio_unit_devin);

Calculate delay and attack and reset it.

Parameters

audio_unit_devin

the AgsAudioUnitDevin

Since: 3.0.0

ags_audio_unit_devin_realloc_buffer ()

void
ags_audio_unit_devin_realloc_buffer (AgsAudioUnitDevin *audio_unit_devin);

Reallocate the internal audio buffer.

Parameters

audio_unit_devin

the AgsAudioUnitDevin

Since: 3.0.0

ags_audio_unit_devin_new ()

AgsAudioUnitDevin *
ags_audio_unit_devin_new ();

Creates a new instance of AgsAudioUnitDevin.

Returns

a new AgsAudioUnitDevin

Since: 3.0.0

Types and Values

AGS_AUDIO_UNIT_DEVIN_DEFAULT_APP_BUFFER_SIZE

#define AGS_AUDIO_UNIT_DEVIN_DEFAULT_APP_BUFFER_SIZE (8)

enum AgsAudioUnitDevinFlags

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

Members

AGS_AUDIO_UNIT_DEVIN_INITIALIZED	the soundcard was initialized
AGS_AUDIO_UNIT_DEVIN_START_RECORD	capture starting
AGS_AUDIO_UNIT_DEVIN_RECORD	do capture
AGS_AUDIO_UNIT_DEVIN_SHUTDOWN	stop capture
AGS_AUDIO_UNIT_DEVIN_NONBLOCKING	do non-blocking calls
AGS_AUDIO_UNIT_DEVIN_ATTACK_FIRST	use first attack, instead of second one

enum AgsAudioUnitDevinAppBufferMode

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

Members

AGS_AUDIO_UNIT_DEVIN_APP_BUFFER_0	ring-buffer 0
AGS_AUDIO_UNIT_DEVIN_APP_BUFFER_1	ring-buffer 1
AGS_AUDIO_UNIT_DEVIN_APP_BUFFER_2	ring-buffer 2
AGS_AUDIO_UNIT_DEVIN_APP_BUFFER_3	ring-buffer 3
AGS_AUDIO_UNIT_DEVIN_APP_BUFFER_4	ring-buffer 4
AGS_AUDIO_UNIT_DEVIN_APP_BUFFER_5	ring-buffer 5
AGS_AUDIO_UNIT_DEVIN_APP_BUFFER_6	ring-buffer 6
AGS_AUDIO_UNIT_DEVIN_APP_BUFFER_7	ring-buffer 7

enum AgsAudioUnitDevinSyncFlags

Enum values to control the synchronization between soundcard and client.

Members

AGS_AUDIO_UNIT_DEVIN_PASS_THROUGH	do not sync
AGS_AUDIO_UNIT_DEVIN_INITIAL_CALLBACK	initial callback
AGS_AUDIO_UNIT_DEVIN_CALLBACK_WAIT	sync wait, soundcard conditional lock
AGS_AUDIO_UNIT_DEVIN_CALLBACK_DONE	sync done, soundcard conditional lock
AGS_AUDIO_UNIT_DEVIN_CALLBACK_FINISH_WAIT	sync wait, client conditional lock
AGS_AUDIO_UNIT_DEVIN_CALLBACK_FINISH_DONE	sync done, client conditional lock

AGS_AUDIO_UNIT_DEVIN_ERROR

#define AGS_AUDIO_UNIT_DEVIN_ERROR (ags_audio_unit_devin_error_quark())

enum AgsAudioUnitDevinError

Members

AGS_AUDIO_UNIT_DEVIN_ERROR_LOCKED_SOUNDCARD

Property Details

The `“attack”` property

  “attack”                   gpointer

Attack of the buffer

Owner: AgsAudioUnitDevin

Flags: Read

Since: 3.0.0

The `“audio-unit-client”` property

  “audio-unit-client”        AgsAudioUnitClient *

The assigned AgsAudioUnitClient

Owner: AgsAudioUnitDevin

Flags: Read / Write

Since: 3.0.0

The `“audio-unit-port”` property

  “audio-unit-port”          gpointer

The assigned AgsAudioUnitPort

Owner: AgsAudioUnitDevin

Flags: Read / Write

Since: 3.0.0

The `“bpm”` property

  “bpm”                      double

Beats per minute

Owner: AgsAudioUnitDevin

Flags: Read / Write

Allowed values: [1,240]

Default value: 120

Since: 3.0.0

The `“buffer”` property

  “buffer”                   gpointer

The buffer

Owner: AgsAudioUnitDevin

Flags: Read

Since: 3.0.0

The `“buffer-size”` property

  “buffer-size”              guint

The buffer size

Owner: AgsAudioUnitDevin

Flags: Read / Write

Allowed values: [1,44100]

Default value: 940

Since: 3.0.0

The `“delay-factor”` property

  “delay-factor”             double

tact

Owner: AgsAudioUnitDevin

Flags: Read / Write

Allowed values: [0,16]

Default value: 1

Since: 3.0.0

The `“device”` property

  “device”                   char *

The audio unit soundcard indentifier

Owner: AgsAudioUnitDevin

Flags: Read / Write

Default value: "ags-audio-unit-devin-0"

Since: 3.0.0

The `“dsp-channels”` property

  “dsp-channels”             guint

The dsp channel count

Owner: AgsAudioUnitDevin

Flags: Read / Write

Allowed values: [1,64]

Default value: 2

Since: 3.0.0

The `“format”` property

  “format”                   guint

The precision of the buffer

Owner: AgsAudioUnitDevin

Flags: Read / Write

Allowed values: [1,64]

Default value: 16

Since: 3.0.0

The `“pcm-channels”` property

  “pcm-channels”             guint

The pcm channel count

Owner: AgsAudioUnitDevin

Flags: Read / Write

Allowed values: [1,64]

Default value: 2

Since: 3.0.0

The `“samplerate”` property

  “samplerate”               guint

The samplerate

Owner: AgsAudioUnitDevin

Flags: Read / Write

Allowed values: [8000,96000]

Default value: 44100

Since: 3.0.0