Network-based audio and video calls as well as video conferencing may loss packets because of limited network bandwidth, which results in video streaming quality problems and reduces the effects of video calls and video conferencing. The real-time streaming quality control algorithm was proposed. This algorithm adopted time control approach to detect and remove the bad key frames, thus reducing the occurrence of blurred screen. The proposed algorithm can efficiently reduce the costs of time and space, which eventually enhances the streaming fluency. The experiments were conducted in terms of original frame playback, post-processing playback, and key frame pretreatment playback. The experimental comparisons showed that the proposed algorithm could efficiently improve the quality and fluency of playback, moreover, the computational complexity of playing processing was also decreased by more than 40%. The results show that the proposed algorithm has outstanding effect to improve the quality of live streaming and reduce the occurrence of blurred screen.