【摘要】 对基于IP组播的纯软件视频会议系统中视音频服务质量控制技术进行了研究,基于RTP/RTCP协议,提出了通过使用高效的编解码器和多线程、设置视频关键帧、动态调整发送端速率、采样缓冲区和接收缓冲区大小等技术,实现了丢包率、声像同步和时延抖动的控制,效果令人满意。更多还原

【Abstract】 This paper studies the key controlling technologies of video-audio QoS in software video conference.Based on RTP/RTCP,some methods are presented to realize the control of the data lost,audio-video synchronization and delay jitter,such as using high efficient coder/decoder,multi-thread programming,setting video key frame and adjusting the sender rate,sampling and receiving buffers dynamically.The results indicate that the performance of the system is satisfactory.更多还原