Question / Help Astrophotography Webcam

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KeithC

New Member
I'd like to use a ZWO ASI120Mono webcam direct as a capture device but when I try all permutations the best I get is a red screen. I then have to resort to a window capture arrangement to stream live images to YouTube for public outreach which is Ok but pits more strain on my GPU and CPU.

The ZWO is a 12 bit CMOS censored device which uses DirectShow technology.

It's maximum resolution is 1280x960 and I'd like to output at 720p (1280x720)

The camera works fine in AMCap, SharpCap and FireCapture.

All and any feedback would be greatly appreciated.

KeithC, Dubai, UAE
 
D

dping

Active Member
KeithC said:
I'd like to use a ZWO ASI120Mono webcam direct as a capture device but when I try all permutations the best I get is a red screen. I then have to resort to a window capture arrangement to stream live images to YouTube for public outreach which is Ok but pits more strain on my GPU and CPU.

The ZWO is a 12 bit CMOS censored device which uses DirectShow technology.

It's maximum resolution is 1280x960 and I'd like to output at 720p (1280x720)

The camera works fine in AMCap, SharpCap and FireCapture.

All and any feedback would be greatly appreciated.

KeithC, Dubai, UAE
Click to expand...
If you could post your logfile. After you copy the link, post the link here.
giphy.gif


Also, If you use Internet explorer for your browser, it should use up a lot less CPU usage.
 
D

dping

Active Member
KeithC said:
https://gist.github.com/4ad3f8f07a823135801b
Click to expand...
Even if your cam did work, your CPU can't seem to handle 720@30. What else do you have running?

Code: 
Number of frames skipped due to encoder lag: 13533 (78.48%)
encoder thread frame - [100%] [avg time: 31.868 ms]
Try switching to quicksync instead of x264. about the red screen issue, make sure you dont have any other program using the webcam, i.e. skype.then unplug your webcam, and remove all scenes, replug in the webcam to another USB port then restart OBS.
In your most recent log, I see the error that is causing your red screen:
Code: 
Warning -- DShowPlugin: Could not find appropriate resolution to create device image source
22:47:56: Using directshow input

try hard setting the resolution to 1280x720 @ 30fps or lower. 640x360 would be best.
 
K

KeithC

New Member
This pop up appears to be important when selecting the device. Whatever I input still gives me a red screen
 

Attachments

  • Resolution Invalid.jpg
    Resolution Invalid.jpg
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D

dping

Active Member
dping said:
Even if your cam did work, your CPU can't seem to handle 720@30. What else do you have running?

Code: 
Number of frames skipped due to encoder lag: 13533 (78.48%)
encoder thread frame - [100%] [avg time: 31.868 ms]
Try switching to quicksync instead of x264. about the red screen issue, make sure you dont have any other program using the webcam, i.e. skype.then unplug your webcam, and remove all scenes, replug in the webcam to another USB port then restart OBS.
In your most recent log, I see the error that is causing your red screen:
Code: 
Warning -- DShowPlugin: Could not find appropriate resolution to create device image source
22:47:56: Using directshow input

try hard setting the resolution to 1280x720 @ 30fps or lower. 640x360 would be best.
Click to expand...
set your stream to the same since you are only usings 600 bitrate...640x360p@30fps...
 
D

dping

Active Member
KeithC said:
Thanks for your input and help. I have been using an i5 laptop so I will try a different computer.
Click to expand...
Yeah I noticed that you were also usings a USB Ethernet Adapter. USB shares bandwidth, so since you have two high use devices, I wouldn't expect full performance out of either.
 
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