Perhaps the major technical problem in streaming media on demand over the Internet is the need to adapt to changing network conditions. Nowadays commercial streaming media systems rely on Multi Bit Rate coding for adaptation. However, existing algorithms are empirical and often fail in a dynamic network. This paper extends the optimal coding rate control framework and addresses the unique problems posed by the MBR stream switching constraints. This paper argues that the algorithm complements any transport protocol, and it demonstrates that it works effectively with both TCP and TFRC transport protocols. Finally, it demonstrates that the algorithm is robust against data loss and delay.
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