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Quadro SDI Output PG-03776-001_v06

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6 ANCILLARY DATA

Ancillary data can be sent to the Quadro SDI device by using the NVIDIA SDI Ancillary

Data API. This API is defined in

ANCapi.h in the SDK include directory. Applications

designed for the Microsoft Windows operating system must statically link against

ANCapi.lib. to utilize the ancillary data API. Linux application must link with

libanc.a

. The library files can be found in the appropriate lib folder in the SDK. Since

the API is shared between Windows and Linux the details described in the remainder of

this chapter apply to both operating systems except where noted.

6.1 GETTING STARTED

Prior to sending ancillary data to the SDI device, the ancillary data API must be

initialized. This must be done after the OpenGL initialization of the SDI device.

Initialization is performed by calling the

NvVIOANCAPI_InitializeGVO function.

Code Listing 28: Initializing Ancillary Data API on Windows

// Initialize ANC API

if (NvVIOANCAPI_InitializeGVO(gSDIout.getHandle()) != NVAPI_OK) {

return E_FAIL;

}

Code Listing 29: Initializing Ancillary Data API on Linux

// Initialize ANC API

if (NvVIOANCAPI_InitializeGVO(dpy, screen) == NVAPI_OK){

init = 1;

}

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