| 摘要 |
A method and apparatus for constructing a metadata database of descriptor of use information relative to video and multimedia transport streams capable of being distributed across a network are provided. The method includes scanning a transport stream to detect metadata directly from the transport stream and collecting additional metadata of the transport stream from at least one headend network device. The metadata and additional metadata obtained for the transport stream is stored in the metadata database. The apparatus may include at least one module for scanning for metadata directly from a video transport stream, for collecting additional metadata known by other network devices, and for populating the metadata database with descriptor of use information for the video transport stream.
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