- Rename controls to fit real behaviour
- Add global gain , r/b balance.
Signed-off-by: NCostantino Leandro <lcostantino@gmail.com>
Signed-off-by: NJean-François Moine <moinejf@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>