Inputting/outputting LTC via SDK

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elliotwoods

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Inputting/outputting LTC via SDK

PostWed Jul 10, 2013 5:02 am

Hey all

On the back of the UltraStudio 4K there are 2 timecode ports.
Image

Can anybody confirm whether the only way to interface with these from the BlackMagic SDK is with the following function calls:

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IDeckLinkVideoFrame::GetTimecode
IDeckLinkMutableVideoFrame::SetTimecode


I.e. is the LTC timecode signal always associated with a video frame, and if so, does the BlackMagic signal automatically select between using an SDI timecode signal or the LTC timecode input port?

Thanks and regards
Elliot
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elliotwoods

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Re: Inputting/outputting LTC via SDK

PostWed Jul 10, 2013 6:57 am

BlackMagic developer support confirms that we need to first call:

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IDeckLinkConfiguration::SetFlag(bmdDeckLinkConfigUseDedicatedLTCInput,  < setting > )


Or select the LTC source in the BlackMagic control panel

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