| 摘要 |
An audio/video content receiver has a content decoder capable of concurrently decoding two or more audio/video programmes from a single packetized data stream of encoded audio/video data packets 400, 402. The receiver receives encoded audio/video content as two or more packetized data streams TS1 and TS2, each data stream comprising one or more programmes having respective encoded audio/video data packets. It then generates a composite packetized data stream having programme data from the packetized data streams by selecting a subset of data packets from the received packetized data streams, the subset including those audio/video data packets relating to those programmes to be decoded. Timing data indicating at least an arrival time of those audio/video data packets included in the composite packetized data stream is stored, preferably adjacent to each packet as private data or in a DVB table. The receiver then decodes and outputs audio/video programme data from the composite packetized data stream according to the timing information stored in respect of each decoded audio/video packet. The content decoder may comprise a series-connected, daisy chain, arrangement of two or more decoders (114).
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