P. V. Rangan and H. M. Vin. A testbed for digital audio and video. In Usenix, Summer 1991.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....by [RV91a] is that the cost of copying multimedia is very expensive and any architecture for a multimedia system should avoid doing it. To avoid the copy of data from layer to layer in such a layered system architecture, we believe that an overlying data structure (a pointer based scheme as in [RV91b] is assumed to exist. The data is physically accessed only at the time of rendition and until then, we assume that the layers communicate data instances in the form of the overlying data structures. As discussed in [LGCB91] temporal information has traditionally been used in maintaining ....

P. V. Rangan and H. M. Vin. A testbed for digital audio and video. In Usenix, Summer 1991.

....(IB Delta Delta Delta P Delta Delta Delta B in inter frame compressed MPEG video) sequenced in a pre defined order at (say) 30 frames per second. A composite stream, on the other hand, is composed temporally 1 from other (simple or composite) streams. Constructs like those proposed in [Rea91] LG90] and [KKHLS92] allow specification of temporal relationships between time intervals of play out of the component streams. Such sets of constructs are useful for specifying compositions as well as deriving placement for two reasons. Firstly, it is far too cumbersome 2 to specify ....

Venkat P. Rangan and et al. A test bed for digital audio and video. In USENIX Proceedings, Summer 1991.

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