Guillaume Roguez authored Feb 08, 2017 and Andreas Traczyk committed Feb 15, 2017

Increasing the number of keyframes sent at the begining
of a video stream upto 4 (was 1).
Even if the bytes flow is increased (only temporarily)
sending more keyframes at stream begin let a chance to
have a nice video looking in case of possible network
packet drop. It's often the case at the stream begin
due to high traffic caused by the calling establishment
process.

Change-Id: I2636727422ca641d8af9d83c59b9d487aff606d5
Reviewed-by: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>