New approach to H265 for the Portsdown

Discussion about this major DATV Project. See https://wiki.batc.org.uk/The_Portsdown_Transmitter
g0mjw
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Joined: Sat Sep 20, 2014 9:15 am

Re: New approach to H265 for the Portsdown

Post by g0mjw » Tue Sep 22, 2020 3:39 pm

Interesting. I used to use the loopback module to use my FlirOne thermal imager as a webcam. Might make for some interesting videos. I don't suppose there is a package available yet?

Mike

roland_F8CHK
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Joined: Fri Nov 17, 2017 3:05 pm

Re: New approach to H265 for the Portsdown

Post by roland_F8CHK » Fri Oct 09, 2020 8:33 am

Hi all,
After reading the new CQ-TV, I thought I could share my Jetson Nanobox, not the same configuration as Dave G8GKQ, and may-be I wxill call it the "BATC BOX", hi!
This configuration allows me a lot of test without modifying any wiring, i find that confortable! I can switch to select Lime or Pluto as TRX.
Intégration datv en.pdf
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Jetson_box_1.jpg
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Jetson_box_2.jpg
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Jetson_box_4.jpg
Jetson_box_4.jpg (75.06 KiB) Viewed 4662 times
Lime_Pluto.jpg
Lime_Pluto.jpg (82.15 KiB) Viewed 4662 times
73,
Roland F8CHK

roland_F8CHK
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Re: New approach to H265 for the Portsdown

Post by roland_F8CHK » Fri Oct 09, 2020 8:38 am

I forgot this one, with a better view of the components...
Jetson_box_3.jpg
Jetson_box_3.jpg (89.45 KiB) Viewed 4662 times
73,
Roland F8CHK

G7JTT
Posts: 352
Joined: Fri Jun 10, 2016 5:05 pm

Re: New approach to H265 for the Portsdown

Post by G7JTT » Fri Oct 09, 2020 7:21 pm

Hi Roland, that looks like a very nice set up there.
One thing I'd like to ask is how you share the Minitiouner between the Pi and the Nano? At the moment my Minitiouner is plugged into the Nano and if I want to use it on the PC then I have to unplug from the Nano and plug into the PC. That was until I found Virtual Here ( https://www.virtualhere.com ) so now the Minitiouner is left plugged into the Nano with the server running and I can still use it on the PC as and when needed. I see there is also a client and server for the RPi so I wonder if it would be possible to plug the Minitiouner into the RPi and run the server, then run the client on the Nano as that would mean you could use the keyboard on the nano to stop and start the client? I will need to have a play and see when I get a chance, that could make for a very nice multi-use non Windows based bit of kit.

All the best John G7JTT

roland_F8CHK
Posts: 32
Joined: Fri Nov 17, 2017 3:05 pm

Re: New approach to H265 for the Portsdown

Post by roland_F8CHK » Fri Oct 09, 2020 10:22 pm

Hi John,
Well, now the switch of Minitiouner between Jetson and Pi is done manually!
Thanks for the information on VirtualHere, it looks like another piece of software to test! There is a trial version, so I think I will do the test!
Server on Pi or Jetson ? there is an ARM64 version that can run on Jetson, maybe?
At the moment the Minitiouner is connected to the Pi, I need to install Longmynd on the Nano so that I can transmit and receive DATV simultaneously, as you are doing I think!
Let me know how you are doing with VirtualHere!

73,
Roland F8CHK

G7JTT
Posts: 352
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Re: New approach to H265 for the Portsdown

Post by G7JTT » Sat Oct 10, 2020 4:50 am

Morning Roland,

I have the server running on the Jetson nano already, hopefully sometime over the weekend I will also install the GUI client on the Jetson nano and the server on the RPi. Yes you are correct I am able to run duplex with the Jetson nano, albeit along with OBS the Jetson is very much at its limit. This is mainly because OBS is encoding H264 in software as it does not as yet have the hardware drivers. I then use ffmpeg to encode H265, I've also used Gstreamer but it causes issues with the video player I use with Longmynd.

Looks to experiment with just not enough time at the moment 😪

All the best John G7JTT

G7JTT
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Re: New approach to H265 for the Portsdown

Post by G7JTT » Sat Oct 10, 2020 5:37 am

Sorry meant to say the trial version is all that is needed as we only want to share one USB device 👍

roland_F8CHK
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Joined: Fri Nov 17, 2017 3:05 pm

Re: New approach to H265 for the Portsdown

Post by roland_F8CHK » Sat Oct 10, 2020 9:46 am

Hi John,
I can confirm that the VirtualHere server is running on the Pi 4, so my Minitiouner is now on the LAN! Magic!
VirtualHere pi server.jpg
VirtualHere pi server.jpg (27.12 KiB) Viewed 4535 times
No problem with Porstdown 4 running on TX in the same time.
Now to install Longmynd and VirtualHere client on Jetson!

73,
Roland F8CHK

G7JTT
Posts: 352
Joined: Fri Jun 10, 2016 5:05 pm

Re: New approach to H265 for the Portsdown

Post by G7JTT » Sat Oct 10, 2020 11:14 am

Excellent Roland I know the server works fine on the Jetson so hopefully the client will too. I feel a rebuild of my current setup is looming hi.

All best John G7JTT

G7JTT
Posts: 352
Joined: Fri Jun 10, 2016 5:05 pm

Re: New approach to H265 for the Portsdown

Post by G7JTT » Wed Oct 21, 2020 5:54 pm

Hi Roland looks like getting the client to work on the Jetson is not going to be straight forward, it seems USBIP is missing and needs to be built into the kernel ! I'll do some reading and see what is needed as it not as simple as sudo apt-get usbip, hopefully we can get it to work as it will be easier to run the client on the jetson than the Portsdown.

73 and stay safe John

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