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structure ACX_STREAMAUDIOENGINE_CALLBACKS (acxelements.h)

  • Article

La structure ACX_STREAMAUDIOENGINE_CALLBACKS identifie les rappels de pilotes pour les opérations du moteur audio de flux ACX.

Syntaxe

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;

Membres

Size

Longueur, en octets, de cette structure.

EvtAcxStreamAudioEngineAssignEffectsState

Rappel EVT_ACX_STREAMAUDIOENGINE_ASSIGN_EFFECTS_STATE.

EvtAcxStreamAudioEngineRetrieveEffectsState

Rappel EVT_ACX_STREAMAUDIOENGINE_RETRIEVE_EFFECTS_STATE.

EvtAcxStreamAudioEngineRetrievePresentationPosition

Rappel EVT_ACX_STREAMAUDIOENGINE_RETRIEVE_PRESENTATION_POSITION.

EvtAcxStreamAudioEngineAssignCurrentWritePosition

Rappel EVT_ACX_STREAMAUDIOENGINE_ASSIGN_CURRENT_WRITE_POSITION.

EvtAcxStreamAudioEngineRetrieveLinearBufferPosition

Rappel EVT_ACX_STREAMAUDIOENGINE_RETRIEVE_LINEAR_BUFFER_POSITION.

EvtAcxStreamAudioEngineAssignLastBufferPosition

Rappel EVT_ACX_STREAMAUDIOENGINE_ASSIGN_LAST_BUFFER_POSITION.

EvtAcxStreamAudioEngineAssignLoopbackProtection

Rappel EVT_ACX_STREAMAUDIOENGINE_ASSIGN_LOOPBACK_PROTECTION.

EvtAcxStreamAudioEngineProcessRequest

Rappel EVT_ACX_OBJECT_PROCESS_REQUEST.

Remarques

Exemple

L’exemple d’utilisation est illustré ci-dessous.

        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;

Configuration requise pour ACX

version minimale d’ACX : 1.0

Pour plus d’informations sur les versions ACX, consultez vue d’ensemble de la version ACX.

Exigences

Exigence Valeur
d’en-tête acxelements.h

Voir aussi