Can't create docker...

[jbuszkie]

To dig up my old thread....

This question is mainly for fuzzy..

I think on the unraid forum you mentioned something about your OpenDCT doing some trancoding on the fly.

What is that all about? Why do you do it and what benefit would it have? And how would I do it?

The openDCT page is like 120 long! :-)

Thanks,

Jim

[Fuzzy]

Originally Posted by jbuszkie

To dig up my old thread....

This question is mainly for fuzzy..

I think on the unraid forum you mentioned something about your OpenDCT doing some trancoding on the fly.

What is that all about? Why do you do it and what benefit would it have? And how would I do it?

The openDCT page is like 120 long! :-)

Thanks,

Jim

OpenDCT passes the stream through ffmpeg (when using that consumer) anyway, so it was setup so that you can transcode the stream to h.264 as it is passing through. For me, it's for better device support, since the MPEG-2 the cableco sends down the line or i get over the air is not always that well supported on a wide array of devices, while the h.264 ffmpeg spits out will playback well on anything I've thrown it at. I am also scaling down to 720p at the same time, since on my various displays, 1080 isn't really worth the extra storage space. There's a couple settings in the opendct.properties file to choose which profile to use for each given device. The profiles themselves are in the opendct/etc/conf/transcode folder. I use ultrafast720p, and my i7-6700 is able to handle 3 cablecard a 2 atsc streams simultaneously.

[jbuszkie]

So if I wanted to add a transcode I would just change my properties file to something like this:

sagetv.device.1908868077.transcode_profile=ultrafast1080p

And restart the docker?
(obviously I'd have to change it for each encoder...)

Thanks,

Jim

[Fuzzy]

you also need to make sure the device is using the ffmpeg consumer as well (either directly or via the dynamic consumer). If it's using raw or mediaserver, it will ignore the transcode option.

[jbuszkie]

Originally Posted by Fuzzy

you also need to make sure the device is using the ffmpeg consumer as well (either directly or via the dynamic consumer). If it's using raw or mediaserver, it will ignore the transcode option.

How do I check that? I've never done anything with my primes.. Is there a thread I can look at so I don't have to bother you?

Jim

[Fuzzy]

easiest way is set the

sagetv.device.1908868077.consumer=opendct.consumer.FFmpegTransSageTVConsumerImpl

on each device you want to transcode.

also a good idea to make sure

consumer.ffmpeg.upload_id_enabled=true

as well (though I think it is by default now).

[jbuszkie]

Originally Posted by Fuzzy

easiest way is set the

sagetv.device.1908868077.consumer=opendct.consumer.FFmpegTransSageTVConsumerImpl

on each device you want to transcode.

Ok.. I can do that..

also a good idea to make sure

consumer.ffmpeg.upload_id_enabled=true

as well (though I think it is by default now).

I don't have that line in my opendct properties.. So just add it?

[Fuzzy]

Originally Posted by jbuszkie

I don't have that line in my opendct properties.. So just add it?

Not having it is fine, it just means that it has never been checked for yet (since you haven't ever run the ffmpeg consumer at this point). The first time you do use the ffmpeg consumer, it will add the property and set it to the default value, which I just checked, is true. So you should be fine to ignore that one (as long as it isn't false).