video: silence a warning

Change-Id: I6517848f7b3d5373e7038385e8746602f6fd61df
Signed-off-by: zwliew <zhaoweiliew@gmail.com>
video: silence a few warnings

Change-Id: Idd04dc6d7405905726d7fe0fc950de7e491b0b9a
Signed-off-by: zwliew <zhaoweiliew@gmail.com>
video: cleanup a warning

Change-Id: Ib1e16165f37b6d16f23c7826f229d5eb7c8df41f
Signed-off-by: zwliew <zhaoweiliew@gmail.com>