Live streaming camlink

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
1

hello to all, I have a problem I can’t use the UDP protocol with GSTREAMER, I only managed to stream with the Rtmp protocol and with Vlc I was able to view it, all this within my private network, the string used to stream it is the following

sudo gst-launch-1.0 v4l2src device = / dev / video0! videoscale! ‘video / x-raw, width = 1280, height = 720, framerate = 25/1, format = YUY2’! nvvidconv! nvv4l2h264enc preset-level = 4 MeasureEncoderLatency = 1! h264parse! flvmux! rtmpsink sync = false location = ‘rtmp: //192.168.0.106: 1935 / live / test’

I have verified that it has a delay of 5 seconds.

But doing various researches I read that if I use the UDP protocol the delay is much less but I don’t know how to use it.
also I would like to display it on VLC, can it be done?

a test that I did is the following
gst-launch-1.0 v4l2src device = / dev / video0! ‘video / x-raw, format = YUY2’! nvvidconv! ‘video / x-raw (memory: NVMM), width = 640, height = 480’! omxh264enc! h264parse! rtph264pay config-interval = 1! udpsink host = 127.0.0.1 port = 5000

but clearly on VLC it doesn’t work
thanks for your help

3

Hi,
Form my experience, UDP is not supported in VLC. You may consider to use RTSP.
Other users can correct me if I am wrong.

4

Hi,
I tested the streaming by using GStreamer with the RTSP protocol and I received the live streaming on a mobile device with VLC. Both on my local network.
The system works but I have a delay of 5 seconds.
If I use the UDP protocol instead of RTSP, which software could I use instead of VLC on a mobile device?
Thanks for your help

5

I think your issue is VLC, not the protocol.

On my NX, I use ustreamer with the following settings…

/usr/local/bin/ustreamer -r 640x480 --static /tmp/ --encoder=HW -m JPEG -d /dev/video0 --host=0.0.0.0 --port=8080

Motion JPEG is pretty simple but when viewed on my desktop with VLC it’s 5 seconds behind. When viewed on my desktop with a web browser, the delay is not noticeable.