| 摘要 |
Computer-based methods and systems for editing a time-based media program involve receiving an instruction to associate metadata with a selected portion of the program, determining a type of the metadata, wherein the type of the metadata is one of a predetermined set of metadata types, identifying a software component available to the editing system that is configured to process metadata of the determined type, and associating the metadata with the selected portion of the program by executing the identified software component to process the metadata. Metadata is represented using a scheme that is shared among the various computational components that manipulate the metadata; the scheme may also be shared with a host media processing system, as well as with other systems that are used in a time-based media editing and production workflow.
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