Question / Help Video delay, latency

[TJV]

Hi All:
I've scoured the web/forum for answers but no luck. Running OBS 23.1.0 on Linux Mint 19.
PC has 16 gigs of ram, a 250G SSD drive, i7 quad core processor.

Using Amcrest IP2M-841 cameras. When I view a camera stream in VLC it has approximately 300ms latency.
When I add the VLC source to OBS it goes up to 1000ms delay.
Using this url: rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0&unicast=true&proto=Onvif

I am using this rig with 6 cameras to record live bands. Would like to get it as close to real time as possible.
Any suggestions on how to reduce the latency?

Thanks,
TJV

 

[Tuna]

Can't really comment on the VLC source. I would expect it to have similar latency to the regular VLC too.

If you are brave enough to explore alternatives - there is a GStreamer source plugin (by me) available on this site. I takes some effort and reading to get it running I guess but may feature lower latency with some specific options. YMMV.

But I thought I#ll mention it at least.

 

[TJV]

Yep, working with it right now. Default colorbars is all I can get at this point. Thanks, I'll keep at it!

 

[Tuna]

On the Github page there is an example for RTSP too iirc. At least for the "auto" mode. If you want more control over specific options you may have to improve the pipeline by yourself though.