capprop.c

《Windows驱动开发技术详解》TestCap样例修正(VC++ 6.0编译版)

    PHW_STREAM_REQUEST_BLOCK pSrb
    )
{
    PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
    PSTREAM_PROPERTY_DESCRIPTOR pSPD = pSrb->CommandData.PropertyInfo;
    ULONG Id = pSPD->Property->Id;              // index of the property
    PSTREAMEX pStrmEx;
    ULONG StreamIndex;
    ULONG *pVideoControlMode;

    // For this property set, the StreamIndex is always in the same place
    // for each property
    StreamIndex = ((PKSPROPERTY_VIDEOCONTROL_CAPS_S) pSPD->Property)->StreamIndex;

    ASSERT (StreamIndex < MAX_TESTCAP_STREAMS);

    // Verify the stream index is valid
    if (StreamIndex >= MAX_TESTCAP_STREAMS) {
        pSrb->Status = STATUS_INVALID_PARAMETER;
        return;
    }

    pStrmEx = (PSTREAMEX) pHwDevExt->pStrmEx[StreamIndex];

    // If the stream is not opened when this property set is used,
    // store the values in the HwDevExt

    if (pStrmEx) {
        pVideoControlMode = &pStrmEx->VideoControlMode;
    }
    else {
        pVideoControlMode = &pHwDevExt->VideoControlMode;
    }

    switch (Id) {

    case KSPROPERTY_VIDEOCONTROL_CAPS:
    {
        PKSPROPERTY_VIDEOCONTROL_CAPS_S pS = (PKSPROPERTY_VIDEOCONTROL_CAPS_S) pSPD->PropertyInfo;    // pointer to the data

        ASSERT (pSPD->PropertyOutputSize >= sizeof (KSPROPERTY_VIDEOCONTROL_CAPS_S));
        
        pS->VideoControlCaps =    
              KS_VideoControlFlag_FlipHorizontal       
//            | KS_VideoControlFlag_FlipVertical         
//            | KS_VideoControlFlag_ExternalTriggerEnable
//            | KS_VideoControlFlag_Trigger              
            ;

        pSrb->ActualBytesTransferred = sizeof (KSPROPERTY_VIDEOCONTROL_CAPS_S);
    }
    break;
        
    case KSPROPERTY_VIDEOCONTROL_ACTUAL_FRAME_RATE:
    {
        PKSPROPERTY_VIDEOCONTROL_ACTUAL_FRAME_RATE_S pS = 
            (PKSPROPERTY_VIDEOCONTROL_ACTUAL_FRAME_RATE_S) pSPD->PropertyInfo;    // pointer to the data

        ASSERT (pSPD->PropertyOutputSize >= sizeof (KSPROPERTY_VIDEOCONTROL_ACTUAL_FRAME_RATE_S));

        pS->CurrentActualFrameRate = 15;        // TODO: Implement the right rates in shipping drivers.
        pS->CurrentMaxAvailableFrameRate = 15;  // TODO: Implement the right rates in shipping drivers.
        

        pSrb->ActualBytesTransferred = sizeof (KSPROPERTY_VIDEOCONTROL_ACTUAL_FRAME_RATE_S);
    }
    break;

    case KSPROPERTY_VIDEOCONTROL_FRAME_RATES:
    {
        // todo
    }
    break;

    case KSPROPERTY_VIDEOCONTROL_MODE:
    {
        PKSPROPERTY_VIDEOCONTROL_MODE_S pS = (PKSPROPERTY_VIDEOCONTROL_MODE_S) pSPD->PropertyInfo;    // pointer to the data

        ASSERT (pSPD->PropertyOutputSize >= sizeof (KSPROPERTY_VIDEOCONTROL_MODE_S));

        pS->Mode = *pVideoControlMode;

        pSrb->ActualBytesTransferred = sizeof (KSPROPERTY_VIDEOCONTROL_MODE_S);
    }
    break;

    default:
        TRAP;
        break;
    }
}


/*
** AdapterGetVideoCompressionProperty()
**
**    Gets compressor settings
**
** Arguments:
**
**    pSrb - pointer to the stream request block for properties
**
** Returns:
**
** Side Effects:  none
*/

VOID
STREAMAPI
AdapterGetVideoCompressionProperty(
    PHW_STREAM_REQUEST_BLOCK pSrb
    )
{
    PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
    PSTREAMEX pStrmEx;
    PSTREAM_PROPERTY_DESCRIPTOR pSPD = pSrb->CommandData.PropertyInfo;
    ULONG Id = pSPD->Property->Id;              // index of the property
    ULONG StreamIndex;
    PCOMPRESSION_SETTINGS pCompressionSettings;

    // For this property set, the StreamIndex is always in the same place
    // for each property
    StreamIndex = ((PKSPROPERTY_VIDEOCOMPRESSION_S) pSPD->Property)->StreamIndex;

    ASSERT (StreamIndex < MAX_TESTCAP_STREAMS);

    // Verify the stream index is valid
    if (StreamIndex >= MAX_TESTCAP_STREAMS) {
        pSrb->Status = STATUS_INVALID_PARAMETER;
        return;
    }

    pStrmEx = (PSTREAMEX) pHwDevExt->pStrmEx[StreamIndex];

    // If the stream is not opened when this property set is used,
    // store the values in the HwDevExt

    if (pStrmEx) {
        pCompressionSettings = &pStrmEx->CompressionSettings;
    }
    else {
        pCompressionSettings = &pHwDevExt->CompressionSettings;
    }


    switch (Id) {

    case KSPROPERTY_VIDEOCOMPRESSION_GETINFO:
        {
            PKSPROPERTY_VIDEOCOMPRESSION_GETINFO_S pS = 
                (PKSPROPERTY_VIDEOCOMPRESSION_GETINFO_S) pSPD->PropertyInfo;

            pS->DefaultKeyFrameRate = 15;    // Key frame rate
            pS->DefaultPFrameRate = 3;       // Predeicted frames per Key frame
            pS->DefaultQuality = 5000;       // 0 to 10000
            pS->Capabilities = 
                       KS_CompressionCaps_CanQuality  |
                       KS_CompressionCaps_CanKeyFrame |
                       KS_CompressionCaps_CanBFrame   ;
            
            pSrb->ActualBytesTransferred = sizeof (KSPROPERTY_VIDEOCOMPRESSION_GETINFO_S);
        }
        break;

    case KSPROPERTY_VIDEOCOMPRESSION_KEYFRAME_RATE:
        {
            PKSPROPERTY_VIDEOCOMPRESSION_S pS = 
                (PKSPROPERTY_VIDEOCOMPRESSION_S) pSPD->PropertyInfo;

            pS->Value = pCompressionSettings->CompressionKeyFrameRate;
                
            pSrb->ActualBytesTransferred = sizeof (KSPROPERTY_VIDEOCOMPRESSION_S);
        }
        break;
    
    case KSPROPERTY_VIDEOCOMPRESSION_PFRAMES_PER_KEYFRAME:
        {
            PKSPROPERTY_VIDEOCOMPRESSION_S pS = 
                (PKSPROPERTY_VIDEOCOMPRESSION_S) pSPD->PropertyInfo;

            pS->Value = pCompressionSettings->CompressionPFramesPerKeyFrame;
                
            pSrb->ActualBytesTransferred = sizeof (KSPROPERTY_VIDEOCOMPRESSION_S);
        }
        break;
    
    case KSPROPERTY_VIDEOCOMPRESSION_QUALITY:
        {
            PKSPROPERTY_VIDEOCOMPRESSION_S pS = 
                (PKSPROPERTY_VIDEOCOMPRESSION_S) pSPD->PropertyInfo;

            pS->Value = pCompressionSettings->CompressionQuality;
                
            pSrb->ActualBytesTransferred = sizeof (KSPROPERTY_VIDEOCOMPRESSION_S);
        }
        break;
    
    default:
        TRAP;
        break;
    }
}

/*
** AdapterSetVideoCompressionProperty()
**
**    Sets compressor settings
**
** Arguments:
**
**    pSrb - pointer to the stream request block for properties
**
** Returns:
**
** Side Effects:  none
*/

VOID
STREAMAPI
AdapterSetVideoCompressionProperty(
    PHW_STREAM_REQUEST_BLOCK pSrb
    )
{
    PHW_DEVICE_EXTENSION pHwDevExt = ((PHW_DEVICE_EXTENSION)pSrb->HwDeviceExtension);
    PSTREAMEX pStrmEx;
    PSTREAM_PROPERTY_DESCRIPTOR pSPD = pSrb->CommandData.PropertyInfo;
    PKSPROPERTY_VIDEOCOMPRESSION_S pS = (PKSPROPERTY_VIDEOCOMPRESSION_S) pSPD->Property;
    ULONG Id = pSPD->Property->Id;              // index of the property
    ULONG StreamIndex;
    PCOMPRESSION_SETTINGS pCompressionSettings;

    // For this property set, the StreamIndex is always in the same place
    // for each property
    StreamIndex = ((PKSPROPERTY_VIDEOCOMPRESSION_S) pSPD->Property)->StreamIndex;

    ASSERT (StreamIndex < MAX_TESTCAP_STREAMS);

    // Verify the stream index is valid
    if (StreamIndex >= MAX_TESTCAP_STREAMS) {
        pSrb->Status = STATUS_INVALID_PARAMETER;
        return;
    }

    pStrmEx = (PSTREAMEX) pHwDevExt->pStrmEx[StreamIndex];

    // If the stream is not opened when this property set is used,
    // store the values in the HwDevExt

    if (pStrmEx) {
        pCompressionSettings = &pStrmEx->CompressionSettings;
    }
    else {
        pCompressionSettings = &pHwDevExt->CompressionSettings;
    }

    switch (Id) {

    case KSPROPERTY_VIDEOCOMPRESSION_KEYFRAME_RATE:
        {
            pCompressionSettings->CompressionKeyFrameRate = pS->Value;
        }
        break;
    
    case KSPROPERTY_VIDEOCOMPRESSION_PFRAMES_PER_KEYFRAME:
        {
            pCompressionSettings->CompressionPFramesPerKeyFrame = pS->Value;
        }
        break;
    
    case KSPROPERTY_VIDEOCOMPRESSION_QUALITY:
        {
            pCompressionSettings->CompressionQuality = pS->Value;
        }
        break;

    default:
        TRAP;
        break;
    }
}


// -------------------------------------------------------------------
// General entry point for all get/set adapter properties
// -------------------------------------------------------------------

/*
** AdapterSetProperty ()
**
**    Handles Set operations for all adapter properties.
**
** Arguments:
**
**      pSRB -
**          Pointer to the HW_STREAM_REQUEST_BLOCK 
**
** Returns:
**
** Side Effects:  none
*/

VOID STREAMAPI AdapterSetProperty(PHW_STREAM_REQUEST_BLOCK pSrb)
{
  PSTREAM_PROPERTY_DESCRIPTOR pSPD = pSrb->CommandData.PropertyInfo;
  DbgLogInfo(("TestCap: Enter AdapterSetProperty\n"));	 
  if(IsEqualGUID(&PROPSETID_VIDCAP_VIDEOPROCAMP, &pSPD->Property->Set)){
    AdapterSetVideoProcAmpProperty (pSrb);
  }else if(IsEqualGUID(&PROPSETID_VIDCAP_CAMERACONTROL, &pSPD->Property->Set)){
    AdapterSetCameraControlProperty (pSrb);
  }else if(IsEqualGUID(&PROPSETID_VIDCAP_VIDEOCONTROL, &pSPD->Property->Set)){
    AdapterSetVideoControlProperty (pSrb);
  }else if(IsEqualGUID (&PROPSETID_VIDCAP_VIDEOCOMPRESSION, &pSPD->Property->Set)){
    AdapterSetVideoCompressionProperty (pSrb);
  }else{
    // We should never get here
    TRAP;
    pSrb->Status = STATUS_NOT_IMPLEMENTED;
  }
}

/*
** AdapterGetProperty ()
**
**    Handles Get operations for all adapter properties.
**
** Arguments:
**
**      pSRB -
**          Pointer to the HW_STREAM_REQUEST_BLOCK 
**
** Returns:
**
** Side Effects:  none
*/

VOID STREAMAPI AdapterGetProperty(PHW_STREAM_REQUEST_BLOCK pSrb)
{
  PSTREAM_PROPERTY_DESCRIPTOR pSPD = pSrb->CommandData.PropertyInfo;
  DbgLogInfo(("TestCap: Enter AdapterGetProperty\n"));	 
  if(IsEqualGUID(&PROPSETID_VIDCAP_VIDEOPROCAMP, &pSPD->Property->Set)){
    AdapterGetVideoProcAmpProperty (pSrb);
    //DbgLogInfo(("TestCap: 1\n"));	 
  }else if(IsEqualGUID(&PROPSETID_VIDCAP_CAMERACONTROL, &pSPD->Property->Set)){
    AdapterGetCameraControlProperty (pSrb);
    //DbgLogInfo(("TestCap: 2\n"));	 
  }else if(IsEqualGUID(&PROPSETID_VIDCAP_VIDEOCONTROL, &pSPD->Property->Set)){
    AdapterGetVideoControlProperty (pSrb);
    //DbgLogInfo(("TestCap: 3\n"));	 
  }else if(IsEqualGUID (&PROPSETID_VIDCAP_VIDEOCOMPRESSION, &pSPD->Property->Set)){
    AdapterGetVideoCompressionProperty (pSrb);
    //DbgLogInfo(("TestCap: 4\n"));	 
  }else{
    // We should never get here
    //DbgLogInfo(("TestCap: 0\n"));	 
    TRAP;
    pSrb->Status = STATUS_NOT_IMPLEMENTED;
  }
}