AgsAlsaDevout

AgsAlsaDevout — Output to soundcard

Stability Level

Stable, unless otherwise indicated

Functions

#define AGS_ALSA_DEVOUT_GET_OBJ_MUTEX()
GQuark ags_alsa_devout_error_quark ()
gboolean ags_alsa_devout_test_flags ()
void ags_alsa_devout_set_flags ()
void ags_alsa_devout_unset_flags ()
void ags_alsa_devout_switch_buffer ()
void ags_alsa_devout_adjust_delay_and_attack ()
void ags_alsa_devout_realloc_buffer ()
AgsAlsaDevout * ags_alsa_devout_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
guint pcm-channels Read / Write
guint samplerate Read / Write

Types and Values

#define AGS_ALSA_DEVOUT_DEFAULT_ALSA_DEVICE
#define AGS_ALSA_DEVOUT_DEFAULT_APP_BUFFER_SIZE
#define AGS_ALSA_DEVOUT_DEFAULT_BACKEND_BUFFER_SIZE
enum AgsAlsaDevoutFlags
enum AgsAlsaDevoutAppBufferMode
enum AgsAlsaDevoutBackendBufferMode
#define AGS_ALSA_DEVOUT_ERROR
enum AgsAlsaDevoutError

Object Hierarchy

    GFlags
    ╰── AgsAlsaDevoutFlags
    GObject
    ╰── AgsAlsaDevout

Includes

#include <ags/audio/ags_alsa_devout.h>

Description

AgsAlsaDevout represents a soundcard and supports output.

Functions

AGS_ALSA_DEVOUT_GET_OBJ_MUTEX()

#define AGS_ALSA_DEVOUT_GET_OBJ_MUTEX(obj) (&(((AgsAlsaDevout *) obj)->obj_mutex))

ags_alsa_devout_error_quark ()

GQuark
ags_alsa_devout_error_quark ();

ags_alsa_devout_test_flags ()

gboolean
ags_alsa_devout_test_flags (AgsAlsaDevout *alsa_devout,
                            AgsAlsaDevoutFlags flags);

Test flags to be set on alsa_devout .

Parameters

alsa_devout

the AgsAlsaDevout

  

flags

the flags

  

Returns

TRUE if flags are set, else FALSE

Since: 3.13.2

ags_alsa_devout_set_flags ()

void
ags_alsa_devout_set_flags (AgsAlsaDevout *alsa_devout,
                           AgsAlsaDevoutFlags flags);

Enable a feature of alsa_devout .

Parameters

alsa_devout

the AgsAlsaDevout

  

flags

see AgsAlsaDevoutFlags

  

Since: 3.13.2

ags_alsa_devout_unset_flags ()

void
ags_alsa_devout_unset_flags (AgsAlsaDevout *alsa_devout,
                             AgsAlsaDevoutFlags flags);

Disable a feature of alsa_devout .

Parameters

alsa_devout

the AgsAlsaDevout

  

flags

see AgsAlsaDevoutFlags

  

Since: 3.13.2

ags_alsa_devout_switch_buffer ()

void
ags_alsa_devout_switch_buffer (AgsAlsaDevout *alsa_devout);

Switch currently played buffer.

Parameters

alsa_devout

the AgsAlsaDevout

  

Since: 3.13.2

ags_alsa_devout_adjust_delay_and_attack ()

void
ags_alsa_devout_adjust_delay_and_attack
                               (AgsAlsaDevout *alsa_devout);

Calculate delay and attack and reset it.

Parameters

alsa_devout

the AgsAlsaDevout

  

Since: 3.13.2

ags_alsa_devout_realloc_buffer ()

void
ags_alsa_devout_realloc_buffer (AgsAlsaDevout *alsa_devout);

Reallocate the internal audio buffer.

Parameters

alsa_devout

the AgsAlsaDevout

  

Since: 3.13.2

ags_alsa_devout_new ()

AgsAlsaDevout *
ags_alsa_devout_new ();

Creates a new instance of AgsAlsaDevout.

Returns

the new AgsAlsaDevout

Since: 3.13.2

Types and Values

AGS_ALSA_DEVOUT_DEFAULT_ALSA_DEVICE

#define AGS_ALSA_DEVOUT_DEFAULT_ALSA_DEVICE "hw:0,0"

AGS_ALSA_DEVOUT_DEFAULT_APP_BUFFER_SIZE

#define AGS_ALSA_DEVOUT_DEFAULT_APP_BUFFER_SIZE (4)

AGS_ALSA_DEVOUT_DEFAULT_BACKEND_BUFFER_SIZE

#define AGS_ALSA_DEVOUT_DEFAULT_BACKEND_BUFFER_SIZE (8)

enum AgsAlsaDevoutFlags

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

Members

AGS_ALSA_DEVOUT_INITIALIZED

the soundcard was initialized

  

AGS_ALSA_DEVOUT_START_PLAY

playback starting

  

AGS_ALSA_DEVOUT_PLAY

devout is running

  

AGS_ALSA_DEVOUT_SHUTDOWN

stop playback

  

AGS_ALSA_DEVOUT_NONBLOCKING

do non-blocking calls

  

AGS_ALSA_DEVOUT_ATTACK_FIRST

use first attack, instead of second one

  

enum AgsAlsaDevoutAppBufferMode

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

Members

AGS_ALSA_DEVOUT_APP_BUFFER_0

ring-buffer 0

  

AGS_ALSA_DEVOUT_APP_BUFFER_1

ring-buffer 1

  

AGS_ALSA_DEVOUT_APP_BUFFER_2

ring-buffer 2

  

AGS_ALSA_DEVOUT_APP_BUFFER_3

ring-buffer 3

  

enum AgsAlsaDevoutBackendBufferMode

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

Members

AGS_ALSA_DEVOUT_BACKEND_BUFFER_0

ring-buffer 0

  

AGS_ALSA_DEVOUT_BACKEND_BUFFER_1

ring-buffer 1

  

AGS_ALSA_DEVOUT_BACKEND_BUFFER_2

ring-buffer 2

  

AGS_ALSA_DEVOUT_BACKEND_BUFFER_3

ring-buffer 3

  

AGS_ALSA_DEVOUT_BACKEND_BUFFER_4

ring-buffer 4

  

AGS_ALSA_DEVOUT_BACKEND_BUFFER_5

ring-buffer 5

  

AGS_ALSA_DEVOUT_BACKEND_BUFFER_6

ring-buffer 6

  

AGS_ALSA_DEVOUT_BACKEND_BUFFER_7

ring-buffer 7

  

AGS_ALSA_DEVOUT_ERROR

#define AGS_ALSA_DEVOUT_ERROR (ags_alsa_devout_error_quark())

enum AgsAlsaDevoutError

Members

AGS_ALSA_DEVOUT_ERROR_LOCKED_SOUNDCARD

    

AGS_ALSA_DEVOUT_ERROR_BROKEN_CONFIGURATION

    

AGS_ALSA_DEVOUT_ERROR_ACCESS_TYPE_NOT_AVAILABLE

    

AGS_ALSA_DEVOUT_ERROR_SAMPLE_FORMAT_NOT_AVAILABLE

    

AGS_ALSA_DEVOUT_ERROR_CHANNELS_NOT_AVAILABLE

    

AGS_ALSA_DEVOUT_ERROR_SAMPLERATE_NOT_AVAILABLE

    

AGS_ALSA_DEVOUT_ERROR_BUFFER_SIZE_NOT_AVAILABLE

    

AGS_ALSA_DEVOUT_ERROR_HW_PARAMETERS_NOT_AVAILABLE

    

Property Details

The “attack” property

  “attack”                   gpointer

Attack of the buffer

Owner: AgsAlsaDevout

Flags: Read

Since: 3.13.2

The “bpm” property

  “bpm”                      double

Beats per minute

Owner: AgsAlsaDevout

Flags: Read / Write

Allowed values: [1,240]

Default value: 120

Since: 3.13.2

The “buffer” property

  “buffer”                   gpointer

The buffer

Owner: AgsAlsaDevout

Flags: Read

Since: 3.13.2

The “buffer-size” property

  “buffer-size”              guint

The buffer size

Owner: AgsAlsaDevout

Flags: Read / Write

Allowed values: [16,16384]

Default value: 1024

Since: 3.13.2

The “delay-factor” property

  “delay-factor”             double

tact

Owner: AgsAlsaDevout

Flags: Read / Write

Allowed values: [0,16]

Default value: 1

Since: 3.13.2

The “device” property

  “device”                   char *

The alsa soundcard indentifier

Owner: AgsAlsaDevout

Flags: Read / Write

Default value: "hw:0,0"

Since: 3.13.2

The “dsp-channels” property

  “dsp-channels”             guint

The dsp channel count

Owner: AgsAlsaDevout

Flags: Read / Write

Allowed values: [1,64]

Default value: 2

Since: 3.13.2

The “format” property

  “format”                   guint

The precision of the buffer

Owner: AgsAlsaDevout

Flags: Read / Write

Default value: 16

Since: 3.13.2

The “pcm-channels” property

  “pcm-channels”             guint

The pcm channel count

Owner: AgsAlsaDevout

Flags: Read / Write

Allowed values: [1,64]

Default value: 2

Since: 3.13.2

The “samplerate” property

  “samplerate”               guint

The samplerate

Owner: AgsAlsaDevout

Flags: Read / Write

Allowed values: [8000,5644800]

Default value: 48000

Since: 3.13.2

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