Cannot open more than 2 cameras on windows

gen2brain / cam2ip

Turn any webcam into an IP camera

GNU General Public License v3.0

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Cannot open more than 2 cameras on windows #17

Closed pmnxt closed 5 years ago

pmnxt commented 5 years ago

When we try to open 3th camera we got: camera: cannot open camera XX All cameras are working when running 1 or 2 instances. We use windows x64 (opencv_ffmpeg2413_64.dll). We use different ports and indexes.

gen2brain commented 5 years ago

So you are using OpenCV build right, and those are all same cameras/drivers? Did you try maybe with "native/no cgo" builds that use VideoForWindows?

pmnxt commented 5 years ago

Thanks for suggestions. Native version is not working for me, got the messages: cannot grab frame. Cameras are the same, working on ispy.

gen2brain commented 5 years ago

Not sure then what is going on, never tried with multiple cameras. You can try to build cam2ip for OpenCV 3 or 4 (-tags cv3 ). Such build is not available for download, I can build it for you but I am very busy currently, not sure when will I find the time.

pmnxt commented 5 years ago

I think we have some workaround, thanks for help.