New approach to H265 for the Portsdown
Re: New approach to H265 for the Portsdown
Hi Jacinto I think this hi-lights the issue that everyone has a slightly different setup and although this method works well for me, it's needs tweaking to each individual setup. Anyway hope to work you soon via the sat
All best John
All best John
Re: New approach to H265 for the Portsdown
Hi John,
Your setup is easy, quick and worked at first, as I said I had to go until 275Ks for stability, at 768x576 ou even 480p the image quality from the conversion of h.264 (from OBS) to h.265 it's OK, but I expected better with my C920, still very stable setup !!!
BTW, what is your delay on QO-100? I have about 3 or 4 secs max ...
Now with dvbsdr I have better quality with the same hardware and as I described on my last post, a delay of 4 secs, I wasn't successful with the lime FGA firmware, which can give me better quality, because when in use the delay is too much +- 9 secs, so I may have to tweak with some parameters?
For the moment I can't say the dvbsdr is very stable as your method, I'm doing more local tests, I do want an easy system and stable and the ability to work also with OBS ...
If it fails, I will prefer to use your setup instead of the dvbsdr ...
Again the use of jetson nano is cheaper than a new computer and it can interact with porstdown for h.265 encode without the use of PC, I tried to use
the picam V2 and the quality is acceptable, I can compare to my C920 using your setup, I just have to figure out how to add my call on screen, as we
have on porstdown mpeg2 ...
I still have a lot to learn but I think to have now everything to go on air and try some contacts, maybe we can have a QSO by sat
tks again
73
Jacinto
cu2ed
Your setup is easy, quick and worked at first, as I said I had to go until 275Ks for stability, at 768x576 ou even 480p the image quality from the conversion of h.264 (from OBS) to h.265 it's OK, but I expected better with my C920, still very stable setup !!!
BTW, what is your delay on QO-100? I have about 3 or 4 secs max ...
Now with dvbsdr I have better quality with the same hardware and as I described on my last post, a delay of 4 secs, I wasn't successful with the lime FGA firmware, which can give me better quality, because when in use the delay is too much +- 9 secs, so I may have to tweak with some parameters?
For the moment I can't say the dvbsdr is very stable as your method, I'm doing more local tests, I do want an easy system and stable and the ability to work also with OBS ...
If it fails, I will prefer to use your setup instead of the dvbsdr ...
Again the use of jetson nano is cheaper than a new computer and it can interact with porstdown for h.265 encode without the use of PC, I tried to use
the picam V2 and the quality is acceptable, I can compare to my C920 using your setup, I just have to figure out how to add my call on screen, as we
have on porstdown mpeg2 ...
I still have a lot to learn but I think to have now everything to go on air and try some contacts, maybe we can have a QSO by sat
tks again
73
Jacinto
cu2ed
Re: New approach to H265 for the Portsdown
Yes 3 to 4 seconds is about the best I can achieve, I have tried dvbsdr with and without the FPGA but still like the simplicity of the Portsdown. There is nothing worse than just about to hit the TX and someone beats you to the spot hi. I must agree I was hoping for better quality with H265 from this setup, it may still be a wrong parameter somewhere yet. And totally agree still lots to learn but enjoying the journey so far and will continue to enjoy playing with DATV via QO100 for as long as we can.
All best John G7JTT
All best John G7JTT
Re: New approach to H265 for the Portsdown
Looks like the link to the Nginx on the first post is dead here is another link but as yet I have not had a chance to try it
https://blog.100tb.com/how-to-set-up-an ... sing-nginx
All best John G7JTT
https://blog.100tb.com/how-to-set-up-an ... sing-nginx
All best John G7JTT
Re: New approach to H265 for the Portsdown
Hi John,
My Lenovo Mini-PC is supposed to be the home of the video for streaming and OBS in this arrangement. It fails to display video from YouTube and crashes to the blue screen. VLC media player open video command is the same. I'm not too hopeful about it streaming a film with OBS on the local Portsdown LAN without crashing. Audio, regular programs and Minitouine are fine. It's a bit of an Achilles Heal!
Do you know if the Linux version of OBS would run on the Jetson Nano and would streaming to IPTSIN on Portsdown still be possible without a PC?
I've a perfectly good screen on my rack (as you know from mending it) which could use its HDMI input from the Nano. Another keyboard and mouse would be tolerable.
Now I've installed LAN cables to my workshop and streamed to my M0YDH channel on the BATC streamer, I can resume my Jetson Nano to Portsdown streaming experiments - if the PC plays ball.
73
David M0YDH
My Lenovo Mini-PC is supposed to be the home of the video for streaming and OBS in this arrangement. It fails to display video from YouTube and crashes to the blue screen. VLC media player open video command is the same. I'm not too hopeful about it streaming a film with OBS on the local Portsdown LAN without crashing. Audio, regular programs and Minitouine are fine. It's a bit of an Achilles Heal!
Do you know if the Linux version of OBS would run on the Jetson Nano and would streaming to IPTSIN on Portsdown still be possible without a PC?
I've a perfectly good screen on my rack (as you know from mending it) which could use its HDMI input from the Nano. Another keyboard and mouse would be tolerable.
Now I've installed LAN cables to my workshop and streamed to my M0YDH channel on the BATC streamer, I can resume my Jetson Nano to Portsdown streaming experiments - if the PC plays ball.
73
David M0YDH
Re: New approach to H265 for the Portsdown
Hi David I've not tried OBS on the Jetson, but if and when I get locked down like most of the population I'll give it a try. Still very busy at work at the moment and I seem to have less and less time to play my front lawn is the only one not cut and my car still needs a wash hi.
All the best and stay safe John
All the best and stay safe John
Re: New approach to H265 for the Portsdown
Hi John and David,
>> Do you know if the Linux version of OBS would run on the Jetson Nano and would streaming to IPTSIN on Portsdown still be possible without a PC?
I tried OBS in Jetson board and it works (H264), you must apply a patch to an old version, but it's limited, you can read more, the reason, in this links:
https://obsproject.com/forum/threads/bu ... h64.85875/
https://imgur.com/a/XqsTDRf
73
Jacinto
cu2ed
>> Do you know if the Linux version of OBS would run on the Jetson Nano and would streaming to IPTSIN on Portsdown still be possible without a PC?
I tried OBS in Jetson board and it works (H264), you must apply a patch to an old version, but it's limited, you can read more, the reason, in this links:
https://obsproject.com/forum/threads/bu ... h64.85875/
https://imgur.com/a/XqsTDRf
73
Jacinto
cu2ed
Re: New approach to H265 for the Portsdown
Hello both
Yes I found independently that Jetson Nano and OBS Studio are incompatible.
However I have updated a Dell Latitude D630 laptop from Linux Mint 17.2 up to 19.3 Tricia XFCE via an overwrite with the Live DVD. This does permit OBS and FFMPEG and it was at zero cost to me . Now I have to follow the OBS for windows settings in CQ-TV 265 and any from this article. There are two experiments to try
1) CQ-TV 265 style - make some Bash scripts that do what the Windows batch file did for H264 transport stream straight to Portsdown.
2) carry out the OBS export to the Jetson Nano per this article in order to make H265 in a 3 computer chain.
Hopefully the 2008 vintage laptop will perform adequately
73
David M0YDH
Yes I found independently that Jetson Nano and OBS Studio are incompatible.
However I have updated a Dell Latitude D630 laptop from Linux Mint 17.2 up to 19.3 Tricia XFCE via an overwrite with the Live DVD. This does permit OBS and FFMPEG and it was at zero cost to me . Now I have to follow the OBS for windows settings in CQ-TV 265 and any from this article. There are two experiments to try
1) CQ-TV 265 style - make some Bash scripts that do what the Windows batch file did for H264 transport stream straight to Portsdown.
2) carry out the OBS export to the Jetson Nano per this article in order to make H265 in a 3 computer chain.
Hopefully the 2008 vintage laptop will perform adequately
73
David M0YDH
Re: New approach to H265 for the Portsdown
If I were to want to change from H264/265 encoding to GSE encoding what would I change in the encoder parameters part of the script as listed on the wiki?
I am experimenting to see if the Portsdown, with or without Jetson Nano, can be successfully used with a DVB-S2X/DVB-GSE system.
I am experimenting to see if the Portsdown, with or without Jetson Nano, can be successfully used with a DVB-S2X/DVB-GSE system.
Andy, KA5BBC/MM0BQV
Re: New approach to H265 for the Portsdown
Hi Andy
The best answer I can think of to your question is that if I was trying to generate DVB-S2 I would start looking at the modifications required in the C and C++ code that generates the TS in the Jetson Nano. It can't be done simply by changing the encoder parameters.
However, that would not be the approach that I would take - I would start by getting one of the open source GNU Radio implementations of the protocol working first on a PC.
Dave
The best answer I can think of to your question is that if I was trying to generate DVB-S2 I would start looking at the modifications required in the C and C++ code that generates the TS in the Jetson Nano. It can't be done simply by changing the encoder parameters.
However, that would not be the approach that I would take - I would start by getting one of the open source GNU Radio implementations of the protocol working first on a PC.
Dave