Pi Zero - UDP/UTC video issue

Preid

Hi,

My setup consists of a Pi Zero W with a Picam running through ZeroTier. I've managed to get everything up and going bar the video stream which is proving tricky. The UDP protocol results in a still image appearing in the cockpit tab, TCP results in the expected stream in UAVcast however in Mission Planner (connecting through TCP) keeps displaying my webcam. I cant connect mission planner through UDP, always times out. On disabling the webcam MP flags up a 'no capture device available'.

I've been using Inav for years and this is the first time I've tried Ardu so hopefully I've not missed something simple. From searching online it appears I right click on the telemetry visual, highlight 'video' and then click on 'Set Gstreamer Source'. Which I then paste in the altered lines under 'tips' in the camera tab in UAVcast for TCP. That sound about right?

I've restarted everything following changing between UDP to TCP, seemed I had to otherwise the camera wouldnt start. I've made sure to enable ground control IP addressed for UDP. Everything green, ports show as accessible.

On the dashboard tab under camera its saying Active: Not Selected and Type: picam

EDIT: Forgot to add logs.

TCP when it doesnt start the camera -
Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/GstTCPServerSink:tcpserversink0: Could not open resource for reading.
Additional debug info:
gsttcpserversink.c(390): gst_tcp_server_sink_init_send (): /GstPipeline:pipeline0/GstTCPServerSink:tcpserversink0:
Failed to resolve host 'null': Error resolving 'null': Name or service not known
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...
04/09/2020 18:56:54 Starting Custom
WARNING: erroneous pipeline: unexpected reference "gst-launch-1" - ignoring

TCP when it starts the camera -
04/09/2020 19:00:29 Starting picam
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/GstTCPServerSink:tcpserversink0: Could not open resource for reading.
Additional debug info:
gsttcpserversink.c(390): gst_tcp_server_sink_init_send (): /GstPipeline:pipeline0/GstTCPServerSink:tcpserversink0:
Failed to resolve host 'null': Error resolving 'null': Name or service not known
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...

UDP when it doesnt start the camera -
Pipeline is PREROLLING ...
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:src: caps = video/x-h264, width=(int)1280, height=(int)720, framerate=(fraction)0/1, parsed=(boolean)true, stream-format=(string)avc, alignment=(string)au, profile=(string)high, level=(string)4, codec_data=(buffer)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee025cb0
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, profile-level-id=(string)640028, sprop-parameter-sets=(string)"J2QAKKwrQCgC3QDxImo\=\,KO4CXLA\=", payload=(int)96, ssrc=(uint)2129264126, timestamp-offset=(uint)1361476610, seqnum-offset=(uint)4759
/GstPipeline:pipeline0/GstMultiUDPSink:multiudpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, profile-level-id=(string)640028, sprop-parameter-sets=(string)"J2QAKKwrQCgC3QDxImo\=\,KO4CXLA\=", payload=(int)96, ssrc=(uint)2129264126, timestamp-offset=(uint)1361476610, seqnum-offset=(uint)4759
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:sink: caps = video/x-h264, width=(int)1280, height=(int)720, framerate=(fraction)0/1, parsed=(boolean)true, stream-format=(string)avc, alignment=(string)au, profile=(string)high, level=(string)4, codec_data=(buffer)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee025cb0
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: timestamp = 1361476610
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: seqnum = 4759
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock

UDP when it does start the camera -
Pipeline is PREROLLING ...
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:src: caps = video/x-h264, width=(int)1280, height=(int)720, framerate=(fraction)0/1, parsed=(boolean)true, stream-format=(string)avc, alignment=(string)au, profile=(string)high, level=(string)4, codec_data=(buffer)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee025cb0
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, profile-level-id=(string)640028, sprop-parameter-sets=(string)"J2QAKKwrQCgC3QDxImo\=\,KO4CXLA\=", payload=(int)96, ssrc=(uint)48069929, timestamp-offset=(uint)3533003412, seqnum-offset=(uint)14331
/GstPipeline:pipeline0/GstMultiUDPSink:multiudpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, profile-level-id=(string)640028, sprop-parameter-sets=(string)"J2QAKKwrQCgC3QDxImo\=\,KO4CXLA\=", payload=(int)96, ssrc=(uint)48069929, timestamp-offset=(uint)3533003412, seqnum-offset=(uint)14331
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:sink: caps = video/x-h264, width=(int)1280, height=(int)720, framerate=(fraction)0/1, parsed=(boolean)true, stream-format=(string)avc, alignment=(string)au, profile=(string)high, level=(string)4, codec_data=(buffer)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee025cb0
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: timestamp = 3533003412
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: seqnum = 14331
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock

Sinamics

Hi. Currently out of office, back tomorrow. But try to disable windows firewall when streaming on udp

Preid

Evening,

No change with the firewall completely disabled.

Something i've noticed on the dashboard is in the camera box its displaying Active: Not Connected, Type: picam.

In mission planner under the config > planner tab there are no video devices. I changed the gstreamer installation to full instead of typical however no change whether I select UDP or TCP.

Theres no rush to get on this seeing as it is the weekend. Can easily pick it up Monday.

Preid

I've kinda found a solution to the issue which ive managed to replicate a few times on the bench which may be a help to anyone else who struggles with the video side.

Following the guide located here https://docs.uavmatrix.com/pages/camera/Configuration/ browse down to 'Windows
Solution #1'.

Paste in the pipeline with the 5601 port into Mission Planner as the Gstream source.
Change the port under 'Groundstation' to 5601.
Default picam settings for UDP and reset the Pi (for luck).
Once it all boots up, even though the light is green for camera in dashboard. Clicking on the log, if it says 'pipeline playing' towards the end then usually good. Also worth checking the 'video' is green under the Groundstation tab.
At this point if I try to stream video through UAVcast cockpit all I get is the buffering sort of icon. No picture ever appears no matter the wait.
Go into MP (I connect using TCP, UDP doesnt work) and try start the camera. If it flags up 'no video device' then go back to the camera tab in UAVcast. Click stop and leave it until the console messages stop. Then click start. I get a 'camera couldnt start' but if I check the log then it says the 'pipeline playing'.
Going back to MP I can then start the camera. It sometimes takes a few goes but once the video establishes its solid. Latency seems around the 400ms mark, very usable. If I click disconnect in MP the camera feed continues.

This is all bench testing mind you, ive yet to bring this to the field. I found there was no difference between having windows firewall off or on but as said this is all bench testing.