Mode 1080i50 with a frequency of 25?

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Sergeylist

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  • Real Name: Sergey Gridnev

Mode 1080i50 with a frequency of 25?

PostTue Oct 13, 2020 3:48 pm

Hello.

I'm just wondering why IDeckLinkVideoOutputCallback.ScheduledFrameCompleted gets called 25 times per second in 1080i50 mode, is everything ok? Also works in default examples :)

Regards
Sergey
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Jonas Hermansson

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Re: Mode 1080i50 with a frequency of 25?

PostTue Oct 13, 2020 11:22 pm

1080i50 is an interlaced format, and you should provide the frames already interlaced. So it is correct that it will be called 25 times per second (50 fields per second, 25 frames per second).
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Sergeylist

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Re: Mode 1080i50 with a frequency of 25?

PostWed Oct 14, 2020 8:46 am

Got it, thanks :)
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Sergeylist

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Re: Mode 1080i50 with a frequency of 25?

PostMon Nov 09, 2020 11:52 am

Hello.

Is it possible to receive calls 50 times in the 1080i50 fashion, simply by indicating some kind of flag or something like that?

Regards
Sergey

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