For a bear of little brain

[James]

I've read the tutorial on dynamic pipelines, but this is not clear:

I want to take video and preview it
mux audio
file sink 

now if file sink is on demand can I

fakesink  when I dont want to record
filesink when I do

(since this is 1080 at 10mb/s and the operation may take 10 hours a dummy recording is not an option)

dynamically set one or the other as often as I wish?

If I play my pipeline on suse it crackles every 10 or 20 secs
If I play using ubuntu (20.04) then playback is flawless
BUT if I record remotely with nomachine then it does crackle

htop suse 4 cores about 35%
htop ubuntu about the same
htop ubuntu + nomachine about 50%

So I would like to try increasing (making more negative) the niceness of each process spawned by gstreamer. Any 'right way' to do that (standard C and unix requires set uid privilege to up nice to less than 0
)

Thanks
James
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