estructura ACX_STREAMAUDIOENGINE_CALLBACKS (acxelements.h)
La estructura de ACX_STREAMAUDIOENGINE_CALLBACKS identifica las devoluciones de llamada del controlador para las operaciones del motor de audio de transmisión de ACX.
Sintaxis
typedef struct _ACX_STREAMAUDIOENGINE_CALLBACKS {
ULONG Size;
PFN_ACX_STREAMAUDIOENGINE_ASSIGN_EFFECTS_STATE EvtAcxStreamAudioEngineAssignEffectsState;
PFN_ACX_STREAMAUDIOENGINE_RETRIEVE_EFFECTS_STATE EvtAcxStreamAudioEngineRetrieveEffectsState;
PFN_ACX_STREAMAUDIOENGINE_RETRIEVE_PRESENTATION_POSITION EvtAcxStreamAudioEngineRetrievePresentationPosition;
PFN_ACX_STREAMAUDIOENGINE_ASSIGN_CURRENT_WRITE_POSITION EvtAcxStreamAudioEngineAssignCurrentWritePosition;
PFN_ACX_STREAMAUDIOENGINE_RETRIEVE_LINEAR_BUFFER_POSITION EvtAcxStreamAudioEngineRetrieveLinearBufferPosition;
PFN_ACX_STREAMAUDIOENGINE_ASSIGN_LAST_BUFFER_POSITION EvtAcxStreamAudioEngineAssignLastBufferPosition;
PFN_ACX_STREAMAUDIOENGINE_ASSIGN_LOOPBACK_PROTECTION EvtAcxStreamAudioEngineAssignLoopbackProtection;
PFN_ACX_OBJECT_PROCESS_REQUEST EvtAcxStreamAudioEngineProcessRequest;
} ACX_STREAMAUDIOENGINE_CALLBACKS, *PACX_STREAMAUDIOENGINE_CALLBACKS;
Miembros
Size
Longitud, en bytes, de esta estructura.
EvtAcxStreamAudioEngineAssignEffectsState
Devolución de llamada EVT_ACX_STREAMAUDIOENGINE_ASSIGN_EFFECTS_STATE.
EvtAcxStreamAudioEngineRetrieveEffectsState
Devolución de llamada EVT_ACX_STREAMAUDIOENGINE_RETRIEVE_EFFECTS_STATE.
EvtAcxStreamAudioEngineRetrievePresentationPosition
Devolución de llamada EVT_ACX_STREAMAUDIOENGINE_RETRIEVE_PRESENTATION_POSITION.
EvtAcxStreamAudioEngineAssignCurrentWritePosition
Devolución de llamada EVT_ACX_STREAMAUDIOENGINE_ASSIGN_CURRENT_WRITE_POSITION.
EvtAcxStreamAudioEngineRetrieveLinearBufferPosition
Devolución de llamada EVT_ACX_STREAMAUDIOENGINE_RETRIEVE_LINEAR_BUFFER_POSITION.
EvtAcxStreamAudioEngineAssignLastBufferPosition
Devolución de llamada EVT_ACX_STREAMAUDIOENGINE_ASSIGN_LAST_BUFFER_POSITION.
EvtAcxStreamAudioEngineAssignLoopbackProtection
Devolución de llamada EVT_ACX_STREAMAUDIOENGINE_ASSIGN_LOOPBACK_PROTECTION.
EvtAcxStreamAudioEngineProcessRequest
Devolución de llamada EVT_ACX_OBJECT_PROCESS_REQUEST.
Observaciones
Ejemplo
A continuación se muestra el uso de ejemplo.
ACX_STREAMAUDIOENGINE_CALLBACKS streamAudioEngineCallbacks;
// Create the AudioEngine element to control offloaded streaming.
ACX_STREAMAUDIOENGINE_CALLBACKS_INIT(&streamAudioEngineCallbacks);
streamAudioEngineCallbacks.EvtAcxStreamAudioEngineAssignEffectsState = CodecR_EvtAcxStreamAudioEngineAssignEffectsState;
streamAudioEngineCallbacks.EvtAcxStreamAudioEngineRetrieveEffectsState = CodecR_EvtAcxStreamAudioEngineRetrieveEffectsState;
streamAudioEngineCallbacks.EvtAcxStreamAudioEngineRetrievePresentationPosition = CodecR_EvtAcxStreamAudioEngineRetrievePresentationPosition;
streamAudioEngineCallbacks.EvtAcxStreamAudioEngineAssignCurrentWritePosition = CodecR_EvtAcxStreamAudioEngineAssignCurrentWritePosition;
streamAudioEngineCallbacks.EvtAcxStreamAudioEngineRetrieveLinearBufferPosition = CodecR_EvtAcxStreamAudioEngineRetrieveLinearBufferPosition;
streamAudioEngineCallbacks.EvtAcxStreamAudioEngineAssignLastBufferPosition = CodecR_EvtAcxStreamAudioEngineAssignLastBufferPosition;
streamAudioEngineCallbacks.EvtAcxStreamAudioEngineAssignLoopbackProtection = CodecR_EvtAcxStreamAudioEngineAssignLoopbackProtection;
Requisitos de ACX
versión mínima de ACX: 1.0
Para obtener más información sobre las versiones de ACX, consulte introducción a la versión de ACX.
Requisitos
| Requisito | Valor |
|---|---|
| encabezado de | acxelements.h |