AgsGstreamerDevin: Advanced Gtk+ Sequencer Audio Reference Manual

AgsGstreamerDevin

AgsGstreamerDevin — Input from soundcard

Stability Level

Stable, unless otherwise indicated

Functions

#define	AGS_GSTREAMER_DEVIN_GET_OBJ_MUTEX()
GQuark	ags_gstreamer_devin_error_quark ()
gboolean	ags_gstreamer_devin_test_flags ()
void	ags_gstreamer_devin_set_flags ()
void	ags_gstreamer_devin_unset_flags ()
void	ags_gstreamer_devin_switch_buffer_flag ()
void	ags_gstreamer_devin_adjust_delay_and_attack ()
void	ags_gstreamer_devin_realloc_buffer ()
AgsGstreamerDevin *	ags_gstreamer_devin_new ()

Properties

gpointer	attack	Read
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
AgsGstreamerClient *	gstreamer-client	Read / Write
gpointer	gstreamer-port	Read / Write
guint	pcm-channels	Read / Write
guint	samplerate	Read / Write

Types and Values

#define	AGS_GSTREAMER_DEVIN_DEFAULT_APP_BUFFER_SIZE
enum	AgsGstreamerDevinFlags
enum	AgsGstreamerDevinAppBufferMode
enum	AgsGstreamerDevinSyncFlags
#define	AGS_GSTREAMER_DEVIN_ERROR
enum	AgsGstreamerDevinError

Object Hierarchy

    GFlags
    ╰── AgsGstreamerDevinFlags
    GObject
    ╰── AgsGstreamerDevin

Includes

#include <ags/audio/gstreamer/ags_gstreamer_devin.h>

Description

AgsGstreamerDevin represents a soundcard and supports input.

Functions

AGS_GSTREAMER_DEVIN_GET_OBJ_MUTEX()

#define AGS_GSTREAMER_DEVIN_GET_OBJ_MUTEX(obj) (&(((AgsGstreamerDevin *) obj)->obj_mutex))

ags_gstreamer_devin_error_quark ()

GQuark
ags_gstreamer_devin_error_quark ();

ags_gstreamer_devin_test_flags ()

gboolean
ags_gstreamer_devin_test_flags (AgsGstreamerDevin *gstreamer_devin,
                                AgsGstreamerDevinFlags flags);

Test flags to be set on gstreamer_devin .

Parameters

gstreamer_devin	the AgsGstreamerDevin
flags	the flags

Returns

TRUE if flags are set, else FALSE

Since: 3.6.0

ags_gstreamer_devin_set_flags ()

void
ags_gstreamer_devin_set_flags (AgsGstreamerDevin *gstreamer_devin,
                               AgsGstreamerDevinFlags flags);

Enable a feature of gstreamer_devin .

Parameters

gstreamer_devin	the AgsGstreamerDevin
flags	see AgsGstreamerDevinFlags

Since: 3.6.0

ags_gstreamer_devin_unset_flags ()

void
ags_gstreamer_devin_unset_flags (AgsGstreamerDevin *gstreamer_devin,
                                 AgsGstreamerDevinFlags flags);

Disable a feature of gstreamer_devin .

Parameters

gstreamer_devin	the AgsGstreamerDevin
flags	see AgsGstreamerDevinFlags

Since: 3.6.0

ags_gstreamer_devin_switch_buffer_flag ()

void
ags_gstreamer_devin_switch_buffer_flag
                               (AgsGstreamerDevin *gstreamer_devin);

The buffer flag indicates the currently played buffer.

Parameters

gstreamer_devin

an AgsGstreamerDevin

Since: 3.6.0

ags_gstreamer_devin_adjust_delay_and_attack ()

void
ags_gstreamer_devin_adjust_delay_and_attack
                               (AgsGstreamerDevin *gstreamer_devin);

Calculate delay and attack and reset it.

Parameters

gstreamer_devin

the AgsGstreamerDevin

Since: 3.6.0

ags_gstreamer_devin_realloc_buffer ()

void
ags_gstreamer_devin_realloc_buffer (AgsGstreamerDevin *gstreamer_devin);

Reallocate the internal audio buffer.

Parameters

gstreamer_devin

the AgsGstreamerDevin

Since: 3.6.0

ags_gstreamer_devin_new ()

AgsGstreamerDevin *
ags_gstreamer_devin_new ();

Creates a new instance of AgsGstreamerDevin.

Returns

the new AgsGstreamerDevin

Since: 3.6.0

Types and Values

AGS_GSTREAMER_DEVIN_DEFAULT_APP_BUFFER_SIZE

#define AGS_GSTREAMER_DEVIN_DEFAULT_APP_BUFFER_SIZE (8)

enum AgsGstreamerDevinFlags

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

Members

AGS_GSTREAMER_DEVIN_INITIALIZED	the soundcard was initialized
AGS_GSTREAMER_DEVIN_START_RECORD	capture starting
AGS_GSTREAMER_DEVIN_RECORD	do capture
AGS_GSTREAMER_DEVIN_SHUTDOWN	stop capture
AGS_GSTREAMER_DEVIN_NONBLOCKING	do non-blocking calls
AGS_GSTREAMER_DEVIN_ATTACK_FIRST	use first attack, instead of second one

enum AgsGstreamerDevinAppBufferMode

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

Members

AGS_GSTREAMER_DEVIN_APP_BUFFER_0	ring-buffer 0
AGS_GSTREAMER_DEVIN_APP_BUFFER_1	ring-buffer 1
AGS_GSTREAMER_DEVIN_APP_BUFFER_2	ring-buffer 2
AGS_GSTREAMER_DEVIN_APP_BUFFER_3	ring-buffer 3
AGS_GSTREAMER_DEVIN_APP_BUFFER_4	ring-buffer 4
AGS_GSTREAMER_DEVIN_APP_BUFFER_5	ring-buffer 5
AGS_GSTREAMER_DEVIN_APP_BUFFER_6	ring-buffer 6
AGS_GSTREAMER_DEVIN_APP_BUFFER_7	ring-buffer 7

enum AgsGstreamerDevinSyncFlags

Enum values to control the synchronization between soundcard and client.

Members

AGS_GSTREAMER_DEVIN_PASS_THROUGH	do not sync
AGS_GSTREAMER_DEVIN_INITIAL_CALLBACK	initial callback
AGS_GSTREAMER_DEVIN_CALLBACK_WAIT	sync wait, soundcard conditional lock
AGS_GSTREAMER_DEVIN_CALLBACK_DONE	sync done, soundcard conditional lock
AGS_GSTREAMER_DEVIN_CALLBACK_FINISH_WAIT	sync wait, client conditional lock
AGS_GSTREAMER_DEVIN_CALLBACK_FINISH_DONE	sync done, client conditional lock

AGS_GSTREAMER_DEVIN_ERROR

#define AGS_GSTREAMER_DEVIN_ERROR (ags_gstreamer_devin_error_quark())

enum AgsGstreamerDevinError

Members

AGS_GSTREAMER_DEVIN_ERROR_LOCKED_SOUNDCARD

Property Details

The `“attack”` property

  “attack”                   gpointer

Attack of the buffer

Owner: AgsGstreamerDevin

Flags: Read

Since: 3.6.0

The `“bpm”` property

  “bpm”                      double

Beats per minute

Owner: AgsGstreamerDevin

Flags: Read / Write

Allowed values: [1,240]

Default value: 120

Since: 3.6.0

The `“buffer”` property

  “buffer”                   gpointer

The buffer

Owner: AgsGstreamerDevin

Flags: Read

Since: 3.6.0

The `“buffer-size”` property

  “buffer-size”              guint

The buffer size

Owner: AgsGstreamerDevin

Flags: Read / Write

Allowed values: [1,44100]

Default value: 940

Since: 3.6.0

The `“delay-factor”` property

  “delay-factor”             double

tact

Owner: AgsGstreamerDevin

Flags: Read / Write

Allowed values: [0,16]

Default value: 1

Since: 3.6.0

The `“device”` property

  “device”                   char *

The gstreamer soundcard indentifier

Owner: AgsGstreamerDevin

Flags: Read / Write

Default value: "ags-gstreamer-devin-0"

Since: 3.6.0

The `“dsp-channels”` property

  “dsp-channels”             guint

The dsp channel count

Owner: AgsGstreamerDevin

Flags: Read / Write

Allowed values: [1,64]

Default value: 2

Since: 3.6.0

The `“format”` property

  “format”                   guint

The precision of the buffer

Owner: AgsGstreamerDevin

Flags: Read / Write

Allowed values: [1,64]

Default value: 16

Since: 3.6.0

The `“gstreamer-client”` property

  “gstreamer-client”         AgsGstreamerClient *

The assigned AgsGstreamerClient

Owner: AgsGstreamerDevin

Flags: Read / Write

Since: 3.6.0

The `“gstreamer-port”` property

  “gstreamer-port”           gpointer

The assigned AgsGstreamerPort

Owner: AgsGstreamerDevin

Flags: Read / Write

Since: 3.6.0

The `“pcm-channels”` property

  “pcm-channels”             guint

The pcm channel count

Owner: AgsGstreamerDevin

Flags: Read / Write

Allowed values: [1,64]

Default value: 2

Since: 3.6.0

The `“samplerate”` property

  “samplerate”               guint

The samplerate

Owner: AgsGstreamerDevin

Flags: Read / Write

Allowed values: [8000,96000]

Default value: 44100

Since: 3.6.0