摘要
本文首先介绍了利用UDP协议进行视频网络传输的优点和不足。然后,根据视频网络传输的要求扩展了UDP协议,给UDP数据包定义了一个8个字节的包头结构,用来传送数据包的序列号、时戳等信息,且在发送端对传输进行光滑化处理,严格控制数据包发送间隔,减小了传输延迟,减小了抖动发生的可能性,从而保证了视频传输的有序性和正确性。最后,给出了一种在Delphi6.0下实现的视频传输的具体方法和流程。该软件能够满足多种网络平台上的视频传输的要求。
The virtue and shortage of using UDP to realize video transmission is put forward in this paper first.Then an extension protocolover the UDP is proposed for video transmission,a data packethead in eight bytes is designed to communicate information such as sequence number and timestamping.Transmission is smooth and the time interval is controlled strictly,so that the delay and dithering of transmission is diminished.Consequently,the sequence and validity of video transmission are guaranteed.At last,particular method and procedure flow are offered to realize video transmission using Delphi6.0.This software can fit for video transmission based on many networks.
出处
《现代计算机》
2002年第9期18-20,共3页
Modern Computer
