All of the examples are for switching out elements in the middle of a
pipeline. In this case I am trying to switch out the trailing element.
The element refuses to be removed, and a new one can't be added until
the old audio sink is removed. I think that the audio sink can't be
removed because it is still holding on to data, and I don't know how to
detect the EOS signal as it passes through.
Savanni D'Gerinel