USB webcam network streaming on apalis i.MX6 board

Technical Support
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1

Hello Experts,

I have connected the USB webcam into i.Mx6 Apalis board and want to stream in another apalis board and Linux Ubuntu PC via network.
Can you please help me on this ?

2

Please have a look at the following article on our developer website.

3

Thanks for the reply.
It didn’t solve the problem, and I can’t see any commands to stream via network (like udp, tcp, rtsp etc.,)
Can you please share me any article to stream the USB webcam in toradex board ?

It should stream like below

toradex <—n/w—> toradex (physical USB webcam connected)

toradex <—n/w—> Ubuntu PC (physical USB webcam connected)

4

NXP’s i.MX Linux User’s Guide has some examples how to use RTSP and other streaming use cases.

5

You want to stream the live USB camera feed from iMX6 to PC. Assuming I understood correctly, running the following pipeline on iMX6

gst-launch-1.0 imxv4l2src device=/dev/video3 ! videoconvert ! queue ! vpuenc_h264 ! rtph264pay ! udpsink host=10.18.0.125 port=5004

and by running the following pipeline on PC

gst-launch-1.0 udpsrc port=5004 caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, payload=(int)96, encoding-name=(string)H264" ! rtph264depay ! avdec_h264 ! xvimagesink

the USB camera stream can be viewed on PC.

6

Thanks for the reply. Got the below errors, any hint to fix the issue.

root@apalis-imx6:/# gst-launch-1.0 udpsrc port=5004 caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, payload=(int)96, encoding-name=(string)H264" ! rtph264depay ! avdec_h264 ! xvimagesink
WARNING: erroneous pipeline: no element "avdec_h264"

root@apalis-imx6:/#
7

You can look for the available H264 decoder on your host distribution and accordingly change the pipeline.

8

Dear Titus ,
Sanchayan pointers are on the exact problem , but if you require any basic
on same do have a look at http://wiki.oz9aec.net/index.php/Gstreamer_cheat_sheet

I have not worked on RTSP but with camera these can help you to start & check if the gst elements are in place

gst-launch-1.0 -v v4l2src ! video/x-raw,width=1280,height=720,framerate=30/1 ! videoconvert ! xvimagesink

gst-launch-1.0 -v v4l2src ! video/x-raw,width=1280,height=720,framerate=30/1 ! x264enc ! avimux ! filesink location=test.avi

Again , this is just in case you are starting on these stuff.