acxstreams.h header

This header is used by the ACX audio class extensions.

For more information, see:

acxstreams.h contains the following programming interfaces:

Functions

 
ACX_RT_STREAM_CALLBACKS_INIT

The ACX_RT_STREAM_CALLBACKS_INIT function method initializes the ACX RT stream callbacks. This function is located in the acxstreams header.
ACX_RTPACKET_INIT

ACX_RTPACKET_INIT initializes the ACX RT packet structure. This function is located in the acxstreams header.
ACX_STREAM_BRIDGE_CONFIG_INIT

The ACX_STREAM_BRIDGE_CONFIG_INIT function initializes an ACX stream bridge config structure.
ACX_STREAM_CALLBACKS_INIT

The ACX_STREAM_CALLBACKS_INIT function initializes the ACX stream callbacks.
AcxDrmAddContentHandlers

The AcxDrmAddContentHandlers function provides the system with a list of functions that handle protected content.
AcxDrmCreateContentMixed

The AcxCreateContentMixed function creates a DRM content ID to identify an ACX audio stream containing mixed content from a number of streams
AcxDrmDestroyContent

The AcxDrmDestroyContent function deletes a DRM content ID that was created by AcxDrmCreateContentMixed.
AcxDrmForwardContentToDeviceObject

The AcxDrmForwardContentToDeviceObject function accepts a device object representing a device to which the caller intends to forward protected content.
AcxDrmRetrieveContentRights

The AcxDrmRetrieveContentRights function gets the DRM content rights assigned to a DRM content ID.
AcxRtStreamCreate

AcxRtStreamCreate creates an ACX RT-based Stream that is used by the OS to stream audio data.
AcxRtStreamNotifyPacketComplete

The driver calls AcxRtStreamNotifyPacketComplete when a packet has completed.
AcxStreamAddConnections

The AcxStreamAddConnections function adds explicit connections to a new ACX stream during EvtAcxCircuitCreateStream
AcxStreamAddElements

AcxStreamAddElements is used to add stream elements to an AcxStream.
AcxStreamAddEvents

AcxStreamAddEvents adds events to a stream using an an ACXEVENT object.
AcxStreamBridgeAddStream

The AcxStreamBridgeAddStream function adds an existing stream to an existing bridge. This function is located in the acxstream header.
AcxStreamBridgeCreate

The AcxStreamBridgeCreate function uses a stream configuration to create a StreamBridge for a circuit.
AcxStreamBridgeGetTargetStream

The AcxStreamBridgeGetTargetStream function gets the stream associated with a specific ACXSTREAMBRIDGE object.
AcxStreamBridgeRemoveStream

The AcxStreamBridgeRemoveStream function removes the specified stream from the associated ACXSTREAMBRIDGE object.
AcxStreamCreate

AcxStreamCreate creates an ACX Stream that is used to control streaming behavior.
AcxStreamDispatchAcxRequest

The AcxStreamDispatchAcxRequest dispatches an ACX request using a WDFREQUEST framework request object.
AcxStreamGetCircuit

The AcxStreamGetCircuit function returns the ACXCIRCUIT Object associated with the stream.
AcxStreamGetElementById

The AcxStreamGetElementById function returns the ACXELEMENT Object handle for the requested element ID.
AcxStreamGetElementsCount

The AcxStreamGetElementsCount function retrieves the number of elements for the specified audio stream.
AcxStreamGetNotificationId

The AcxStreamGetNotificationId function retrieves the Plug and Play notification ID for the specified audio stream.
AcxStreamInitAssignAcxRequestPreprocessCallback

The AcxStreamInitAssignAcxRequestPreprocessCallback function assigns an AcxRequestPreprocessCallback to a stream.
AcxStreamInitAssignAcxRtStreamCallbacks

The AcxStreamInitAssignAcxRtStreamCallbacks function sets the RT callbacks using an ACXSTREAM_INIT object.
AcxStreamInitAssignAcxStreamCallbacks

The AcxStreamInitAssignAcxStreamCallbacks function sets the callbacks using an ACX_STREAM_CALLBACKS structure and an ACXSTREAM_INIT object.
AcxStreamInitAssignMethods

The AcxStreamInitAssignMethods function assigns an array of methods to a stream using the ACXSTREAM_INIT object.
AcxStreamInitAssignProperties

The AcxStreamInitAssignProperties function assigns an array of properties to a stream using an ACXSTREAM_INIT object.
AcxStreamInitSetAcxRtStreamSupportsNotifications

The AcxStreamInitSetAcxRtStreamSupportsNotifications function is used to indicate that buffer notifications are supported.
AcxStreamResumeIo

The AcxStreamResumeIo function is used to resume IO for a stream.
AcxStreamResumeIoActual

The AcxStreamResumeIoActual function is used to resume IO for a stream.
AcxStreamResumeIoWithTag

The AcxStreamResumeIoWithTag function is used to resume IO for a stream.
AcxStreamStopIo

The AcxStreamStopIo function is used to temporarily stop the IO for a stream.
AcxStreamStopIoActual

The AcxStreamStopIoActual function is used to temporarily stop the IO for a stream.
AcxStreamStopIoWithTag

The AcxStreamStopIoWithTag function is used to temporarily stop the IO for a stream.
DEFINE_ACXDRMRIGHTS_DEFAULT

This macro provides the default DRM rights

Callback functions

 
EVT_ACX_STREAM_ALLOCATE_RTPACKETS

The EvtAcxStreamAllocateRtPackets event tells the driver to allocate RtPackets for streaming.
EVT_ACX_STREAM_ASSIGN_DRM_CONTENT_ID

The EVT_ACX_STREAM_ASSIGN_DRM_CONTENT_ID event tells the driver to assign a content ID for the purposes of DRM streaming.
EVT_ACX_STREAM_FREE_RTPACKETS

The EvtAcxStreamFreeRtPackets event tells the driver to free the RtPackets that were allocated in a previous call to EvtAcxStreamAllocateRtPackets.
EVT_ACX_STREAM_GET_CAPTURE_PACKET

EvtAcxStreamGetCapturePacket tells the driver to indicate which packet (0-based) was completely filled most recently, including the QPC value at the time the driver started filling the packet.
EVT_ACX_STREAM_GET_CURRENT_PACKET

EvtAcxStreamGetCurrentPacket tells the driver to indicate which packet (0-based) is currently being rendered to the hardware or is currently being filled by the capture hardware.
EVT_ACX_STREAM_GET_HW_LATENCY

The EvtAcxStreamGetHwLatency event tells the driver to provide stream latency for the specific circuit of this stream (overall latency will be a sum of the latency of the different circuits).
EVT_ACX_STREAM_GET_PRESENTATION_POSITION

The EvtAcxStreamGetPresentationPosition tells the driver to indicate the current position along with the QPC value at the time the current position was calculated.
EVT_ACX_STREAM_PAUSE

The EvtAcxStreamPause event tells the driver to transition the stream state from Run to Pause.
EVT_ACX_STREAM_PREPARE_HARDWARE

The EvtAcxStreamPrepareHardware event tells the driver to prepare the hardware for streaming.
EVT_ACX_STREAM_RELEASE_HARDWARE

The EvtAcxStreamReleaseHardware event tells the driver to release any hardware allocated for the stream and put the stream into the Stop state.
EVT_ACX_STREAM_RUN

The EvtAcxStreamRun event tells the driver to transition the stream state from Pause to Run.
EVT_ACX_STREAM_SET_RENDER_PACKET

The EvtAcxStreamSetRenderPacket event tells the driver which packet was just released by the client.

Structures

 
ACX_RT_STREAM_CALLBACKS

The ACX_RT_STREAM_CALLBACKS structure defines callbacks for RT streaming to the ACX framework.
ACX_RTPACKET

The ACX_RTPACKET structure represents a single allocated packet. The PacketBuffer must be an MDL.
ACX_STREAM_BRIDGE_CONFIG

The AcxStreamBridge structure is used by a circuit to propagate stream creation, states transitions and DRM settings between the endpoints circuit stream segments.
ACX_STREAM_CALLBACKS

The ACX_STREAM_CALLBACKS structure identifies the driver callbacks for streaming to the ACX framework.
ACXDRMFORWARD

The ACXDRMFORWARD structure contains the information that the DRM system driver needs in order to forward a DRM content ID to a device that handles protected content.
ACXDRMRIGHTS

The ACXDRMRIGHTS structure specifies the DRM content rights assigned to an ACX audio pin or to a driver's stream object.

Enumerations

 
ACX_STREAM_BRIDGE_CONFIG_FLAGS

The ACX_STREAM_BRIDGE_CONFIG_FLAGS enumeration describes the Acx Stream Bridge config flags.
ACX_STREAM_BRIDGE_TYPE

The ACX_STREAM_BRIDGE_TYPE enumeration describes the Acx Stream Bridge Type.
ACX_STREAM_STATE

ACX_STREAM_STATE describes the Acx Stream State flags. This function is located in the acxstreams header.