Safety guaranteed smooth playout algorithm for wireless video streaming

Recently smooth adaptive media playout (SAMP) was suggested to deal with the visual quality degradation problem caused by the fluctuation of playout speed in conventional AMP. However, while encountering the burst packet losses, it still had a potential buffer outage risk if buffer level was not safe enough. In this paper, a safety guaranteed SAMP (SG SAMP) algorithm is proposed to deal with the above hazard. Whenever the current buffer level deviates from the predefined safe area, the linear playout adjustment order is triggered to maintain the buffer safety. The simulation results have shown that SG SAMP outperforms SAMP in reducing the buffer outage probability and provides smooth and reliable playback, especially in wireless video streaming. The playout adjustment number and the frame loss number are both about 30% less.