Video Streaming from Apalis tk1 to Apalis imx6q

Technical Support
, , , ,
1

Hello,

I am trying to stream web-cam video from tk1 to imx6 using RTP. I found that below pipelines of Gstreame

1. Sender (Apalis tk1)
gst-launch-1.0 -v v4l2src \
! video/x-raw,format=YUY2,width=640,height=480 \
! jpegenc \
! rtpjpegpay \
! udpsink host=127.0.0.1 port=5000

and

2. Receiver (Apalis imx6)
gst-launch-1.0 -v udpsrc port=5000 \
! application/x-rtp, media=video, clock-rate=90000, encoding-name=JPEG, payload=26 \
! rtpjpegdepay \
! jpegdec \
! xvimagesink sync=0

Sender seems okay to convey the video streaming, but in receiver part, it shows

root@apalis-imx6:~#     gst-launch-1.0 -v udpsrc port=5000 \
    >     ! application/x-rtp, media=video, clock-rate=90000, encoding-name=JPEG, payload=26 \
    >     ! rtpjpegdepay \
    >     ! jpegdec \
    >     ! xvimagesink sync=0
    Setting pipeline to PAUSED ...
    ERROR: Pipeline doesn't want to pause.
    ERROR: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: Could not initialise Xv output
    Additional debug info:
    ../../../gst-plugins-base-1.12.2/sys/xvimage/xvimagesink.c(1759): gst_xv_image_sink_open (): /GstPipeline:pipeline0/GstXvImageSi:
    Could not open display (null)
    Setting pipeline to NULL ...
    Freeing pipeline ...

I thought I have to use “fbdevsink” instead of “xvimagesink”, because my imx6 OS is Apalis-iMX6_Console-Image. But, still no luck.

I will be so helpful if you could let me know what pipelines do I need to use in receiver (imx6 console)

Thank you in advance.

2

hi @hkhunkim

Have you done any changes to the Software? Could you update to Bsp 2.8b5 and the newest Jetpack Image on TK1 and check if this works.

Best regards,
Jaski

3

After updating bsp 2.8b5 still does not work… But, I found that

Sender

gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=640,height=480,framerate=\(fraction\)30/1 ! videoconvert ! jpegenc ! udpsink host=10.1.10.2 port=5000

Receiver

gst-launch-1.0 -v udpsrc port=5000 ! jpegdec ! videoconvert ! fbdevsink sync=false

This above pipeline might work, but in sender (TK1), it says

Additional debug info:
gstmultiudpsink.c(607): gst_multiudpsink_render (): /GstPipeline:pipeline0/GstUDPSink:udpsi:
Reason: Error sending message: Network is unreachable
WARNING: from element /GstPipeline:pipeline0/GstUDPSink:udpsink0: Error sending UDP packet

Would you let me know how to set up ethernet network inbetween two boards?

I have been used

[Sender]
ip link set eth1 up (Jectpack does not insmod eth0 I think)
ip addr add 10.1.10.5/24 broadcast 10.1.10.255 dev eth1
ip route add default via 10.1.10.1

[Receiver]
ip link set eth0 up
ip addr add 10.1.10.2/24 broadcast 10.1.10.255 dev eth0
ip route add default via 10.1.10.1

But it doesn’t work.

4

hi @hkhunkim: We will try to reproduce this issue on our side.
There are just few questions: What is your application? Are you trying to show the stream on Apalis iMX6 on a display or just saving the stream to harddisk.

Best regards,
Jaski