Intensity Extreme Display Mode

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Kumaresh A.K.

  • Posts: 3
  • Joined: Tue Dec 23, 2014 8:53 pm

Intensity Extreme Display Mode

PostTue Dec 23, 2014 8:59 pm

Hello

I am using Blackmagic SDK to capture video frames (on MAC). On this card, the format change callback is not supported as EnableVideoInput() method fails with bmdVideoInputEnableFormatDetection flag. How do I detect the input signal format?

Regards,
Kumaresh A
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Daniel Moore

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  • Joined: Wed Aug 22, 2012 1:06 am

Re: Intensity Extreme Display Mode

PostSun Dec 28, 2014 9:51 pm

Hi Kumaresh,

a return value of E_INVALIDARG when bmdVideoInputEnableFormatDetection is specified indicates that the card does not support input format detection. This feature is supported on all recent models but not on the Intensity Extreme.

cheers
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Kumaresh A.K.

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  • Joined: Tue Dec 23, 2014 8:53 pm

Re: Intensity Extreme Display Mode

PostMon Dec 29, 2014 7:24 pm

Hi Danniel

Is there anyway I can detect the input frame format? Because, for {1080p, 30fps} input, both {1080i, 30fps} and {1080p, 30fps} give video frames. Unless I see the output, I cannot say which is the correct settings.
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Daniel Moore

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Re: Intensity Extreme Display Mode

PostMon Dec 29, 2014 9:11 pm

Hi Kumaresh,

The best I can suggest for a board without the format detection feature is
to initiate capture in a sequence of selected formats until one locks.

cheers
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Kumaresh A.K.

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  • Joined: Tue Dec 23, 2014 8:53 pm

Re: Intensity Extreme Display Mode

PostMon Dec 29, 2014 9:13 pm

Thanks Daniel

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