Without any real technical understanding and as all the current hardware for RX is quite happy with H265, I'd go with that if your encoding setup can easily deliver it. 'Tis in vain to do with more, that which can be done with less... (better quality same bandwidth is my basic understanding).
Gareth
New Repeater Questions
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This forum is run by the BATC (British Amateur Television Club), it is service made freely available to all interested parties, please do not abuse this privilege.
Thank you
Re: New Repeater Questions
Michael
H.265 needs a lot of processing, but if the encoder has adequate resources it can yield better results for the same bandwidth.
On the other hand H.264 might be better if the encoder is struggling. I've used both on the local repeater, but I've upset users with older set-top boxes that will only do H.264 @ 1MS/s when I've tied H265.
What encoder are you planning to use?
Clive
H.265 needs a lot of processing, but if the encoder has adequate resources it can yield better results for the same bandwidth.
On the other hand H.264 might be better if the encoder is struggling. I've used both on the local repeater, but I've upset users with older set-top boxes that will only do H.264 @ 1MS/s when I've tied H265.
What encoder are you planning to use?
Clive
Re: New Repeater Questions
My intention is to use the plugin provided by GStreamer, but certainly at lower bitrates (and at 1080p) the cpu load and latency goes up considerably. It might be possible to improve this. Early days...
Michael EA7KIR
Re: New Repeater Questions
I would go with H265, it is 2026 after all. H264 is over 20 years old. Even H265 is over 10 years old. We should be innovating if we want to keep our bands.
Mike
Mike
Re: New Repeater Questions
Hi Michael,
GB3EN uses an old 4th gen I7 PC and an old Nvidia graphics card, a GTX1060 and can easily produce 1MS/s H265 Full HD 1920x1080 video. The PC also functions a a repeater controller handling the inputs as well.
With this spec all you need is a £20 sat RX to receive it!
There is a full write up in CQTV 288 and 289, might be useful and give you some ideas.
Duncan
G7VVF
GB3EN uses an old 4th gen I7 PC and an old Nvidia graphics card, a GTX1060 and can easily produce 1MS/s H265 Full HD 1920x1080 video. The PC also functions a a repeater controller handling the inputs as well.
With this spec all you need is a £20 sat RX to receive it!
There is a full write up in CQTV 288 and 289, might be useful and give you some ideas.
Duncan
G7VVF
Re: New Repeater Questions
Interesting. I was under the impression old Sat boxes could only do H.264. This makes HECV even more attractive. Thanks.
Michael EA7KIR