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。
This paper studies the key controlling technologies of video-audio QoS in software video conference. Based on RTP/RTCE 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.
出处
《计算机工程》
EI
CAS
CSCD
北大核心
2006年第16期221-223,共3页
Computer Engineering
基金
广西自然科学基金资助项目(桂科基0342011)
广西教育厅资助项目(桂教科研【2004】20号)
