Hi,
you can use [pix_video] with the VLC backend instead.
But note that VLC have a lot of latency with network camera.
VLC backend works on Linux, Mac OSX and Windows (but only when build with MinGW), see [1].
Instead, I would suggest to use a Linux box with a gstreamer pipeline that redirect the stream to a V4L2loopback device and then open the stream in Gem with the pix_video"s V4L2 backend.
You can have a look to my blog article [2] where I detailed how I use a Raspberry Pi to stream live video to Gem.
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A