Use a branch of tee only when there is a key press

nishitha nishitha.a at
Tue Jun 8 13:07:34 UTC 2021


I am running a video pipeline to encode a video. I create another branch
from source using tee and give it to a jpegenc to capture the frames from
video as jpeg files. Now I need this branch only when I press a key. That is
, say I press 'c', then jpegenc branch should get activated. What can I do ?

Is it possible to pause this branch alone ? 
Or any other way?

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