Video delivery in networks with fluctuating bandwidth

B. G. Heath, D. Monro
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Abstract

A 'client pull' mechanism is described by which applications can reliably transmit point-point video over a network with time varying bit rate. The system is particularly useful using Internet delivery over wireless networks, and is suitable for carrying live video. The problem is considered at the application level, using protocols such as TCP which will guarantee data delivery, however slowly. At a fixed image quality, the client requests frames which the server codes on demand. Latency can be overcome by the client using recent network performance to predict the time at which a frame should be requested.
带宽波动网络中的视频传输
“客户端拉”机制描述了应用程序可以通过时变比特率的网络可靠地传输点-点视频。该系统在使用无线网络的因特网传送时特别有用,并且适合传送实况视频。这个问题是在应用程序级别考虑的,使用TCP之类的协议来保证数据传输,尽管速度很慢。在固定的图像质量下,客户端请求服务器按需编码的帧。延迟可以通过客户端使用最近的网络性能来预测应该请求帧的时间来克服。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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