The interleaved video frame distribution for P2P-based VoD system with VCR functionality
Computer Networks: The International Journal of Computer and Telecommunications Networking
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During the last years, Internet video streaming has experienceda fenomenal growth. This is happening despitethe notorious difficulties of transmitting data packets witha deadline over the Internet, due to variability in throughput,delays and losses. These problems arise significativelywhen using wireless networks where the available bandwidthis low and the losses are important due to its errorprone transmission nature. In this paper 1 we propose afast-forwarding technique that is based on segmenting themovie on different files. Normal movie reproduction requiresall the files, but fast-forward reproduction only requiresone file. Those files can be merged by the client or bythe server. The segmentation is frame based, grouping allthe frames that can be independently decoded together. Theresulting file can be showed with any existing player. Thisgroup of frames would be the ones to use in a fast-forwardreproduction. Our technique can also be useful in adaptiveenvironments, like wireless networks, because there is noproblem for the fast-forward file to use the same optimizationsthat exist for full movie files. This method also reducesthe storage bandwidth and the storage size needed (there isno extra data for fast-forwarding). We also propose a videoserver architecture that takes advantage of this technique toachieve full interactive video reproduction. The evaluationresults shown in this paper demonstrates that our techniqueenhances video fast-forwarding operations.