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Published 20 hours ago • verified publisher icon jyjblrd

Openning 2 or more webcams is not possible ?

Open clennpillo opened this issue 7 months ago • 3 comments

hi jyjblrd,

I ran into a problem that I cannot open 2 or more webcams at the same time on my computer. Opening first webcam is ok, but openning the second one fails. This happens when I plug in 2 or more webcams on my USB hub which connects to one USB3.0 port of my computer, however, if I plug in 2 webcams on 2 seperate USB ports of my computer, everything works fine, the error information is as follows.

when using openCV, ret, frame = cap.read() always gets a False for ret which means openning failure

I also tried VLC, the error was capture device might be in use

This is some information for reference. laptop: Thinkpad L14 os: windows10 home edition 22H2 USB hub: external power supply and USB3.0 support

Can you tell me how you connect 4 cameras to your computer in your instance ?

clennpillo avatar Jul 08 '24 10:07 clennpillo