Sample Code

Windows Driver Samples/ Microsoft Virtual Audio Device Driver Sample/ C++/ dynamic/ wavtable.h/

/*++

Copyright (c) 1997-2000  Microsoft Corporation All Rights Reserved

Module Name:

    wavtable.h

Abstract:

    Declaration of wave miniport tables.

--*/

#ifndef _MSVAD_WAVTABLE_H_
#define _MSVAD_WAVTABLE_H_

//=============================================================================
static
KSDATARANGE_AUDIO PinDataRangesStream[] =
{
    {
        {
            sizeof(KSDATARANGE_AUDIO),
            0,
            0,
            0,
            STATICGUIDOF(KSDATAFORMAT_TYPE_AUDIO),
            STATICGUIDOF(KSDATAFORMAT_SUBTYPE_PCM),
            STATICGUIDOF(KSDATAFORMAT_SPECIFIER_WAVEFORMATEX)
        },
        MAX_CHANNELS_PCM,           
        MIN_BITS_PER_SAMPLE_PCM,    
        MAX_BITS_PER_SAMPLE_PCM,    
        MIN_SAMPLE_RATE,            
        MAX_SAMPLE_RATE             
    },
};

static
PKSDATARANGE PinDataRangePointersStream[] =
{
    PKSDATARANGE(&PinDataRangesStream[0])
};

//=============================================================================
static
KSDATARANGE PinDataRangesBridge[] =
{
    {
        sizeof(KSDATARANGE),
        0,
        0,
        0,
        STATICGUIDOF(KSDATAFORMAT_TYPE_AUDIO),
        STATICGUIDOF(KSDATAFORMAT_SUBTYPE_ANALOG),
        STATICGUIDOF(KSDATAFORMAT_SPECIFIER_NONE)
    }
};

static
PKSDATARANGE PinDataRangePointersBridge[] =
{
    &PinDataRangesBridge[0]
};

//=============================================================================
static
PCPIN_DESCRIPTOR MiniportPins[] =
{
    // Wave Out Streaming Pin (Renderer) KSPIN_WAVE_RENDER_SINK
    {
        MAX_OUTPUT_STREAMS,
        MAX_OUTPUT_STREAMS, 
        0,
        NULL,
        {
            0,
            NULL,
            0,
            NULL,
            SIZEOF_ARRAY(PinDataRangePointersStream),
            PinDataRangePointersStream,
            KSPIN_DATAFLOW_IN,
            KSPIN_COMMUNICATION_SINK,
            &KSCATEGORY_AUDIO,
            NULL,
            0
        }
    },
  
    // Wave Out Bridge Pin (Renderer) KSPIN_WAVE_RENDER_SOURCE
    {
        0,
        0,
        0,
        NULL,
        {
            0,
            NULL,
            0,
            NULL,
            SIZEOF_ARRAY(PinDataRangePointersBridge),
            PinDataRangePointersBridge,
            KSPIN_DATAFLOW_OUT,
            KSPIN_COMMUNICATION_NONE,
            &KSCATEGORY_AUDIO,
            NULL,
            0
        }
    }
};

//=============================================================================
static
PCNODE_DESCRIPTOR MiniportNodes[] =
{
    // KSNODE_WAVE_DAC
    {
        0,                      // Flags
        NULL,                   // AutomationTable
        &KSNODETYPE_DAC,        // Type
        NULL                    // Name
    }
};

//=============================================================================
static
PCCONNECTION_DESCRIPTOR MiniportConnections[] =
{
    { PCFILTER_NODE,        KSPIN_WAVE_RENDER_SINK,     KSNODE_WAVE_DAC,     1 },    
    { KSNODE_WAVE_DAC,      0,                          PCFILTER_NODE,       KSPIN_WAVE_RENDER_SOURCE },    
};

//=============================================================================
static
PCPROPERTY_ITEM PropertiesWaveFilter[] =
{
    {
        &KSPROPSETID_Pin,
        KSPROPERTY_PIN_PROPOSEDATAFORMAT,
        KSPROPERTY_TYPE_SET | KSPROPERTY_TYPE_BASICSUPPORT,
        PropertyHandler_WaveFilter
    }
};

DEFINE_PCAUTOMATION_TABLE_PROP(AutomationWaveFilter, PropertiesWaveFilter);

//=============================================================================
static
PCFILTER_DESCRIPTOR MiniportFilterDescriptor =
{
    0,                                  // Version
    &AutomationWaveFilter,              // AutomationTable
    sizeof(PCPIN_DESCRIPTOR),           // PinSize
    SIZEOF_ARRAY(MiniportPins),         // PinCount
    MiniportPins,                       // Pins
    sizeof(PCNODE_DESCRIPTOR),          // NodeSize
    SIZEOF_ARRAY(MiniportNodes),        // NodeCount
    MiniportNodes,                      // Nodes
    SIZEOF_ARRAY(MiniportConnections),  // ConnectionCount
    MiniportConnections,                // Connections
    0,                                  // CategoryCount
    NULL                                // Categories  - use defaults (audio, render, capture)
};

#endif

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