Resolution Issue - Choppy on anything but low resolution

Newbee14

New Member
New user to OBS with first install being on a Windows 10,AMD A9, 8 Gb laptop to get up and running trying to stream church services. Using PTZ 30x camera with resolution dial set to 720P 30 fps (option 8). Great video shown off HDMI port of camera going to a TV for monitoring and absolutely no choppy video shown on the TV however using the network port of the camera is what is being used for the source to stream off of. Everything is a new install from current downloads so assume all software used is recent. OBS version is 25.0.8 (64 bit). Anything above the lowest setting (like 420 x 240) you get what appears to be choppy (missing movement). While streaming I see 30 fps in the lower right of monitor and will be showing green as status and no choppy video. For a very brief period it went yellow, then red and back to green. Last night's broadcast about 600 frames were dropped during this period accounting for the .3% drop rate however unless tied to resolution issue somehow that is not the issue at hand.

When I bump the resolution up a bit to say 640 x 480 and video clears up to usable however you see movements start being choppy. Try the 720p (think is is 1280x720) that camera is producing and I get an encoder overload. My first thoughts was the windows laptop simply didn't have enough horsepower to run it. I loaded OBS on a desktop running ubuntu with a zeon processor, 12 gig of memory and a 3 output video card (don't have name available at time of post but what appears to be a decent card in it's day). I have the resolution set to 1280 x 720 on both settings (desktop and output) and have checked the box and lowered it to settings available in the drop down box however anything but the lowest setting (420 x 240 ish) is choppy. Without confusing you I moved to a desktop running ubuntu and I am seeing the exact same results as far as the choppy video being streamed. It's probably a setting as I migrated the settings used from one computer to the other however I haven't identified which setting.

Any help greatly appreciated. At 18:06:35 in the log I stopped the stream as I attempted 1280 X 720 and it was dropping frames. At 18:14:15 I was streaming at 452 x 256 30 fps and the video here was actually used for the service and it was usable, just not very good resolution.


Any suggestions as audio is great however at a loss at this point on what to try. I have adjusted the computer speed and it seems to run best at the "very fast" cpu setting. I do not have the video card encoding (or attempting to encode) and I have separated the stream (track 1) from the recording (track 2) however I am NOT attempting to record at this time as didn't want that to overload anything.

Network wise I am running a POE switch behind a fiber fed ONT having tried the computer run off the ONT switch as well as the POE switch with no change in results.

I am streaming to facebook however I have it set to "custom" with the facebook info keyed in. I have tried the bitrate from 2500 - 4000 in 500 increments. I dropped .3% during a 1.5 hour test rescaling to 452x256 on the windows laptop last night. Repeated test on the Linux desktop and had no dropped packets however didn't have good resolution video either.
 

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