How to display the video on screen

Accelerated Computing Intelligent Video Analytics DeepStream SDK
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1

Hello, I am new to gsteramer and depthai.

I have this OAK camera and I am trying to display the video on the screen. I am using Jetson Nano and OAK-1 camera with usb connection. My goal is to simply display the video on the screen using gsteamer. I have earlier tried it with the v4l2 with other camera it was working fine. But the same pipeline is not working for depthai OAK cam.

I saw this example on depthai-experiments/gen2-rtsp-streaming at master · luxonis/depthai-experiments · GitHub and ran “main.py”.
I have removed the rtsp part and trying to display it with appsink.
but I am just getting these:

pipeline is live and does not need preerolling …
setting pipeline to PLAYING …

and thats it. No video on the screen. Can someone please explain this ?

3

You can use the rtsp source and our nveglglessink to show in the screen.
You can refer the link below to see how play rstp source with deepstream.
https://github.com/NVIDIA-AI-IOT/deepstream_python_apps/blob/master/apps/runtime_source_add_delete/deepstream_rt_src_add_del.py

4

Ok thanks for the response. But I have one question, if I take rtsp as a source, wont it affect on latency? I just want to display the video on the screen, which ideally should be real time and without any lag.

Please suggest any simple pipeline structure, so that I can write a program later using gstreamer API

5

It may not follow the standard v4l2 specification. You can open some debug info with the cli below to locate the cause of the problem:

GST_DEBUG=5 ...........your cli.........
1 Like
6

can you suggest any other source other than rtsp ? like when i try to put autovideosrc, its not giving me any output.

7

What’s the output data format of the Camera? You should know this through the camera manufacturer first. Then you can choose the source plugin.

8

h.264 is the output format

9

There is no update from you for a period, assuming this is not an issue anymore.
Hence we are closing this topic. If need further support, please open a new one.
Thanks

If your camera’s output is h264, you can use src-->uridecodebin plugin directly or src--->h264parse--->nvv4l2decoder plugins.

1 Like
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