dynamically adding udpsrc to rtpbin causes streaming stopped, reason not-linked (-1)

[ShilVin]

In your pipeline elements have request or all time pad. Ideally you should
not get  linking error.

Check DOT diagram that should tell you the dandling branch.

Your DOT diagram should link something like this.
autoaudiosrc ! queue ! audioconvert !  audio/x-raw,rate=16000 ! avenc_g722 !
rtpg722pay ! rtpbin ! udpsink 




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