Abstract
Streaming video applications on the Internet generally have very high bandwidth requirements and yet are often unresponsive to network congestion. In order to avoid congestion collapse and improve video quality, these applications need to respond to congestion in the network by deploying mechanisms to reduce their bandwidth requirements under conditions of heavy load. Unfortunately current video applications scale to fit the available bandwidth without regard to the video content. In this paper a dynamic content-aware scaling mechanism will be presented that reduces the bandwidth occupied by an application. This has been achieved by dropping frames (temporal scaling) and by reducing the quality of the frames transmitted (quality scaling). Based on internet connection speed of the client, a streaming video client and server that is capable of scaling MPEG stream using temporal and quality scaling have been designed.
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