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User interactivity and customisation are key features that must be promoted to help distinguish IPTV from satellite/aerial/cable TV alternatives. Furthermore, IPTV providers also have to compete with Internet TV by providing extra features to justify the cost. In this paper, we present a number of scenarios whereby IPTV providers can achieve this through the use of synchronised time. Integrating and...
In this paper we propose real-time methods for flexible processing of multimedia streaming in resource constrained systems. Video streams are dynamically adapted to match available system resources in small, embedded devices, such as as mobile phones and PDAs. Real-time admission control and resource reservation mechanisms ensure that media processing fully utilize the available system resources,...
Streaming media is data that is delivered in a continuous stream to a client and that can be used as it arrives. With the rapid development of information technology, streaming media service is one of the important ways of the information services. P2P technology has played a good supporting role in the distribution of large data flow of streaming media in information services. This article analyzes...
In the era of universal multimedia access (UMA), applications like video conferencing, surveillance and streaming are challenged by the multiplicity of devices. Since adaptation is the newly applied practice for digital video content customization, in this demo, we present a simple approach to adapt H.264 videos, in the compressed domain, for heterogeneous devices and mobile environments. Our approach...
Media Streaming is getting popular and feasible because of the higher network bandwidth. The supported media formats also increase rapidly. The end user on the streaming client side seldom realizes that the reason certain media content can not be rendered on the computers is due to the lack of the corresponding decoder. As a result, the ability to determine the media contents that streaming client...
The dynamic and varying wireless channel makes it a challenge to efficiently delivery media contents over wireless with quality guarantee. We propose a multi-description scheme for the adaptive delivery of media contents over wireless. A video segment is abstracted at different levels, such as syntactic and semantic description by feature extraction and keywords annotation, video abstract by key frames...
As dataflow descriptions of media processing become popular, the techniques for analyzing and profiling the performance of sequential algorithms are no longer applicable. This paper describes some of the basic concepts and techniques for analyzing the computations described by dataflow programs, and illustrates them on an MPEG-4 decoder.
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