rjhowell44

@Ritesh1991 yes, although I use the nvidia supplied models for all the examples, I think most users are actually using Yolo versions. @youngjae-avikus I believe you're using YoloV4 ... correct?

@Ritesh1991 most of the examples use either a file source or URI source. Any of the examples can easily be updated to use a USB source instead. See [dsl_source_usb_new](https://github.com/prominenceai/deepstream-services-library/blob/master/docs/api-source.md#dsl_source_usb_new).

@Ritesh1991 most examples use a primary GIE by defining the paths to the inference config file and model engine file. ```python # Filespecs for the Primary GIE and IOU Trcaker...

That's a good question @Ritesh1991. It looks like I need to provide services to get/set the device location which defaults to `/dev/video0` ... see documentation on the `v4l2src` plugin https://gstreamer.freedesktop.org/documentation/video4linux2/v4l2src.html#v4l2src:device....

@Ritesh1991 I've merged updates into the v0.26.alpha dev branch that should allow you to create multiple CSI and USB Camera Sources... please see the update documentation/rules * [CSI Camera Source](https://github.com/prominenceai/deepstream-services-library/blob/v0.26.alpha/docs/api-source.md#dsl_source_csi_new)...

@Ritesh1991 could I ask you to run a simple test with two USB cameras while capturing a log. First, could you type in the following to see how they enumerate....

@Ritesh1991 Is there a chance that something else is running that might be accessing the camera?

@Ritesh1991 I've merged a change into the v0.26.alpha branch that should fix the problem with the constructor. You can remove the call to set the device-location. There was one mistake...

@Ritesh1991 yes, it should. Normally, I would fully test before merging, but don't want to hold you up

@Ritesh1991 did it work for you?