| 摘要 |
A method and system of operating a digital data decoder. In accordance with this method, a first stream of encoded data is transmitted to the decoder, and a second stream of encoded data is stored in a memory device. One of the first and second streams of encoded data is selected, and the decoder is used to decode that selected stream of encoded data. This second stream of data could have been placed in the memory device by other devices or processes present in an STB system. In this case, all the decoder needs to process the data is a pointer to it and some additional information about, for example, its size. Since the processor has access to all memory, it can do any necessary parsing/manipulation required by the stream format. This provides a large degree of flexibility in this area. The processor can then pass location and attributes of data to the decoder. This also minimizes data movement to/from memory, reducing bandwidth requirements.
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