Multiple pads with uridecodebin

[foralost]

Hello there!

I'm making a console music player. I have a question. Whenever I change the
parameter "source" of uridecodebin, it creates a new pad (src_x, where x is
a number increased by 1). 

What is the best approach to switch sources? Destroy the entire pipeline and
create it again, or find a way to unlink (destroy) the (previous) pad which
I'm not currently using?



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