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Advanced Topics

Quadro SDI Output PG-03776-001_v06 | 60

l_vioConfig.vioConfig.outConfig.colorConversion.colorMatrix[2][1]

-0.3310f;

l_vioConfig.vioConfig.outConfig.colorConversion.colorMatrix[2][2]

0.5000f;

break;

} // switch

} else {

l_vioConfig.fields |= NVGVOCONFIG_CSCOVERRIDE;

l_vioConfig.vioConfig.outConfig.cscOverride = FALSE;

} // if

// Set configuration

if (NvAPI_VIO_SetConfig(hVIO, &l_vioConfig) != NVAPI_OK) {

return E_FAIL;

}

Once an application specifies a custom color space conversion matrix for a given data

format, that matrix remains in effect until it is redefined, or at which point

cscOverride

is set to

FALSE indicating that the default color space conversion for the given data format

should be utilized.

Code Listing 44: Specifying a Custom Color Space Conversion on

Linux

// Setup color CSC matrix and offsets

if (op->csc) {

switch(op->video_format) {

case VIDEO_FORMAT_487I:

case VIDEO_FORMAT_576I:

colorMat[0][0] = 0.2991f;

colorMat[0][1] = 0.5870f;

colorMat[0][2] = 0.1150f;

colorMat[1][0] = 0.5000f;

colorMat[1][1] = -0.4185f;

colorMat[1][2] = -0.0810f;

colorMat[2][0] = -0.1685f;

colorMat[2][1] = -0.3310f;

colorMat[2][2] = 0.5000f;

break;

case VIDEO_FORMAT_720P:

case VIDEO_FORMAT_1080I:

colorMat[0][0] = 0.2130f;

colorMat[0][1] = 0.7156f;

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