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Cannot stream anything beyond most basic settings.
Posted: Fri Oct 16, 2020 3:10 pm
by KA5BBC
I cannot get my Portsdown 4 to stream with any settings other than the most basic ones at boot up, seen in the image below.
Am I doing something wrong and how do I fix it?
- PXL_20201016_150720050~2.jpg (893.51 KiB) Viewed 2678 times
Re: Cannot stream anything beyond most basic settings.
Posted: Fri Oct 16, 2020 3:25 pm
by G8GKQ
Andy
What are you trying to stream that does not work?
Dave
Re: Cannot stream anything beyond most basic settings.
Posted: Fri Oct 16, 2020 4:34 pm
by KA5BBC
No matter which one of the presets I hit nor what settings I put in as modulation, encoder, format, symbol rate, or anything else other than what is shown it does not work.. It will show that it is running but when I try to open the streamer there is no stream, it shows as inactive.
Re: Cannot stream anything beyond most basic settings.
Posted: Fri Oct 16, 2020 4:49 pm
by G8GKQ
Hi Andy
It is designed to stream useful stuff at a fixed bit rate and encoding. So, the available input options are Test Card, Pi Cam or Comp Video (some webcams might work as well).
The bitrate is fixed at about 600 kbs, and the encoding is H264.
Try with Test Card as a source - but make sure that you have the correct stream key (in lower case) entered.
Dave
Re: Cannot stream anything beyond most basic settings.
Posted: Fri Oct 16, 2020 4:54 pm
by G8GKQ
Andy
Sorry - I see your stream key has some upper case as well!
Dave
Re: Cannot stream anything beyond most basic settings.
Posted: Fri Oct 16, 2020 4:59 pm
by KA5BBC
Dave,
So I am assuming that no matter which one of the format presets I choose the stream will still be at 600 KPS h264, is that correct?
I have tried picam, C920 webcam, easycap and test card at the presets other than the one it boots to and it will not show as a stream on the website.
I have also tried adjusting the encoding and the symbol rate on the m1 screen but it makes no difference.
Re: Cannot stream anything beyond most basic settings.
Posted: Fri Oct 16, 2020 5:13 pm
by G8GKQ
Yes, the streaming server is designed to accept H264. MPEG-2 would be poorer quality and is not technically possible anyway.
The stream bandwidth (bitrate) was chosen as a compromise setting for SD quality and ADSL connections. You can edit it in rpidatv/scripts/a.sh.
If you want to do anything more advanced, it's better to use OBS or vMix, both of which can stream directly to BATC. Or you can home-brew a command line for ffmpeg.
Dave
Re: Cannot stream anything beyond most basic settings.
Posted: Fri Oct 16, 2020 5:33 pm
by KA5BBC
Okay so my understanding now is that I can only stream from the most basic setting at boot as long as I do not change presets etc. Is that correct?
Part of my reason for working so hard on this right now is that I am trying to put together the parts to build a virtual repeater.. four raspberry pis as stream receivers feeding a quadviewer which will then go back out via a Portsdown to the stream. Being able to stream out at SD16.9 or at least 720 would make it much more usable.
Re: Cannot stream anything beyond most basic settings.
Posted: Tue Oct 20, 2020 5:09 am
by Jabi
Hello:
I am working with " it's better to use OBS or vMix, both of which can stream directly to BATC..." but is impossible work for me. Any have beeter and clair instructions about how work OBS with Postdown 4?
73,s de Jabi, ea2aru.