Black Video when using two camera sources

M

mdc_streamer

New Member
OBS running on a "strong enough" laptop.
Streaming through restream.io
Two cameras attached via two different video adapter cards (HDMI to USB)
Each camera is a source in each of two different scenes
Intermittently one or both of the cameras will wake up with black video, or one may go black during a scene change.
Recovery is to delete the video source and re-add it.

short log files uploaded at:

thanks, team
 
M

mdc_streamer

New Member
mdc_streamer said:
OBS running on a "strong enough" laptop.
Streaming through restream.io
Two cameras attached via two different video adapter cards (HDMI to USB)
Each camera is a source in each of two different scenes
Intermittently one or both of the cameras will wake up with black video, or one may go black during a scene change.
Recovery is to delete the video source and re-add it.

short log files uploaded at:

thanks, team
Click to expand...

another somewhat longer log file:
 
FerretBomb

FerretBomb

Active Member
From the logfile, it appears that one of your camera devices is crashing and disappearing, then OBS is restarting it:
06:46:28.623: Device 'UAC USB3.0 CAPTURE DEVICE (UAC USB3.0 CAPTURE DEVICE)' invalidated. Retrying
06:46:31.650: [WASAPISource::TryInitialize]:[UAC USB3.0 CAPTURE DEVICE (UAC USB3.0 CAPTURE DEVICE)] Failed to activate client context: 88890004
06:46:34.668: WASAPI: Device 'UAC USB3.0 CAPTURE DEVICE (UAC USB3.0 CAPTURE DEVICE)' [48000 Hz] initialized
Click to expand...
I'm not seeing anything for the other one in that log, but this is a problem with the capture device itself.

One thing I'd try is including both capture devices in each scene, 'hiding' the un-used one behind the other in the sources stack. This should keep them both 'alive' at all times, and may help to minimize or eliminate the device's errors in some cases, if they're just on initialization.
 
M

mdc_streamer

New Member
Thanks, I will try that ... but honestly this happens even with just ONE camera connected.

Perhaps related ... frequently on OBS startup, the video is black. Closing and reopening OBS does NOT appear to solve the problem.
a very short log file showing such an event is here:
obsproject.com/logs/f3tndG8WouxU3Ha8

Is it possible that the capture cards are somehow at fault?
 
FerretBomb

FerretBomb

Active Member
mdc_streamer said:
Thanks, I will try that ... but honestly this happens even with just ONE camera connected.

Perhaps related ... frequently on OBS startup, the video is black. Closing and reopening OBS does NOT appear to solve the problem.
a very short log file showing such an event is here:
obsproject.com/logs/f3tndG8WouxU3Ha8

Is it possible that the capture cards are somehow at fault?
Click to expand...
It is very likely, yes.
 
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