摘要
针对NAT问题和无线视频通信质量容忍度问题,研究丢包率的调节方法。运用STUN解决NAT穿越问题,调用Android NDK做视频数据压缩,并由此设计Android手机平台上的会话初始协议视频通信终端系统。实验结果表明,当数据包在5 KB以内,发包频率在每秒25个～40个时,可将丢包率基本控制在3%以下。
Aiming at the problems of NAT and tolerance for wireless video communication quality, this paper studies the adjustment of the packet loss rate. It uses STUN to solve the problem of traversing NAT devices in communication, called Android NDK for compressing video data, and designs a SIP terminal system of video communication on Android platform. Experimental results show that, the packet loss rate can generally be controlled below 3% in transmission when the packet size in less than 5 KB and the frequency of send data packet is 25-40 per second.
出处
《计算机工程》
CAS
CSCD
2012年第14期220-222,226,共4页
Computer Engineering
基金
国家自然科学基金资助项目(61001123)
广东省中国科学院全面战略合作基金资助项目(2011B090300070)
