volume: need a way to control the volume of individual channels of a multi-channel source
Submitted by sdegrande
Link to original bug (#647561)
Description
The volume element is currently not able to control each channel individually.
I tried to replace the playbin2's audio-sink, to use deinterleave/interleave, but did not succeed (I've got some warnings about the channel layout). Improving the volume element would dramatically ease such use case.