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I'm working with AI-Thermometer project using Nvidia Jeton Nano.

The project is using Pi camera v2 for video capturing. Here's the command of showing video streams using Pi camera v2.

gst-launch-1.0 nvarguscamerasrc sensor_mode=0 ! 'video/x-raw(memory:NVMM),width=3264, height=2464, framerate=21/1, format=NV12' ! nvvidconv flip-method=2 ! 'video/x-raw,width=960, height=720' ! nvvidconv ! nvegltransform ! nveglglessink -e

I want to use the normal USB webcam (such as Logitech c930) instead of Pi camera v2. To do so, I need to stream the USB webcam data using GStreamer in the same way as above pipeline commands.

I installed v4l-utils on Ubuntu of Jetson Nano. And tried like this,

gst-launch-1.0 v4l2src device="/dev/video0" ! 'video/x-raw(memory:NVMM),width= ...

, but it gave a warning and didn't work.

How can I show video streams from webcam?

Gino Mempin
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DumTux
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2 Answers2

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There should not quotes around the device parameter i.e. device=/dev/video0. If the error persists, then its probably something else.

tathagat dasgupta
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  • It's not a matter of quotes. The above streaming pipeline is not correct. I just mentioned I was trying like that. – DumTux Jan 01 '21 at 00:53
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gst-launch-1.0 v4l2src device="/dev/video0" ! \
  "video/x-raw, width=640, height=480, format=(string)YUY2" ! \
  xvimagesink -e
Gino Mempin
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JUGFK
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