Page 1 of 1
How to stop sending blackframe when there is no input
Posted:
Fri Jul 19, 2019 2:02 pm
by parithi
Hi,
I am using MiniMonitor for SDI output. But when there is no iput MiniMonitor is keep on sending blckframes.
Is there a way we can stop sending blackframes when there is no iput?
Setup :
Desktop Video version 10.8.2
OS : cent os 7.5
Regards,
Parithi
Re: How to stop sending blackframe when there is no input
Posted:
Wed Jul 24, 2019 4:31 am
by Cameron Nichols
Hi Parithi,
When the DeckLink Mini Monitor has its video output disabled, it can be configured to either send out black frames or to send out freeze frames (display the last frame scheduled). You can set this value either via the Video Output tab of Desktop Video Setup application, or programmatically by calling method IDeckLinkConfiguration::SetInt() [1] with configuration ID bmdDeckLinkConfigVideoOutputIdleOperation [2] and value either bmdIdleVideoOutputBlack or bmdIdleVideoOutputLastFrame [3].
In addition, the DeviceConfigure SDK sample demonstrates how to set video output idle configuration.
Regards
Cameron
References (DeckLink SDK Manual)
[1] 2.5.15.3 IDeckLinkConfiguration::SetInt method
[2] 2.7.18 DeckLink Configuration ID
[3] 2.7.41 Idle Video Output Operation
Re: How to stop sending blackframe when there is no input
Posted:
Wed Aug 14, 2019 12:09 pm
by parithi
Cameron,
Thanks for the reply. Is there a way we can do the samething using v4l2 api?