| 摘要 |
Provided are methods, apparatus and computer program products for switching between data streams. The data streams include a matching set of data items in a consistent sequence. One data stream may be a superset of the other, and which data stream is running ahead of the other may not be known in advance. It is desired to synchronize the data streams so that a data receiver can be switched from a first to a second data stream without loss of data. For a time period of interest, characteristics of a first data item on one stream are compared with characteristics of each latest-received data item on the other stream until a match is identified. This match is used to identify a synchronization point for the switch between data streams.
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