摘要
视频在网络传输过程中常常由于UDP本身不可靠的性质造成数据包丢失的问题。为了解决这一问题,本文针对基于UDP的网络视频传输与同步展开了研究。首先本文介绍了传输层UDP协议的基本原理;其次,针对网络视频传输对于实时性和连续性等方面的要求本文提出了一种网络视频数据的传输模型;然后,为了解决在互联网中由于传输的延迟随机性所导致的数据同步问题,本文提出了一种时间戳来解决视频同步问题的方法,在视频数据的发送端,通过为数据传输设定一个参考时钟,在实际生成数据流时根据参考时钟上的时间将数据块与时间戳绑定;在视频数据的接收端,通过读取数据块中的时间戳值,并参考当前参考时钟上的时间来进行视频数据帧重组从而解决了视频数据传输不同步的问题。
Video network transmission process itself is often unreliable because the UDP packet loss caused by the nature of the problem.To solve this problem, this UDP-based network for video transmission and synchronization launched a study.This paper first introduces the basic principles UDP transport layer protocol; Second, the network for real-time video transmission and continuity for the other requirements of this article presents a model for network transmission of video data; Then, in order to resolve on the Intemet due to the transfer of delays caused by the randomness of the data synchronization issues, this paper proposes a method to solve the timestamp video synchronization problems in video data transmitter, data transmission by setting a reference clock to generate the data stream in real time according to the reference the time on the clock and the time stamp data blocks binding; thereby solving the video data of the video data at the receiving end, the data block by reading the timestamp value, the current and the reference clock to the reference time frame of video data for the recombinant transmission ofsvnc problems.
出处
《网络安全技术与应用》
2014年第3期15-16,共2页
Network Security Technology & Application
关键词
UDP
数据传输
数据重组
网络
UDP
data transmission
data reorganization
network
