keyboard controls for snappy
----------------------------

spacebar   - play/pause

f          - fullscreen/unfullscreen

esc        - close snappy
q          - close snappy

up         - seek 1 minute foward
down       - seek 1 minute back
left       - seek 10 seconds back
right      - seek 10 seconds foward

8          - mute/unmute
9          - turn volume up
0          - turn volume down

c          - show/hide visual controls

r          - rotate video

.          - frame step foward
,          - frame step backwards