摘要 |
A system (10), method (60) and apparatus (14) are provided for updating a first advertisement in a video program stream with a second advertisement, based on temporal metadata replacement rules and instructions embedded in or otherwise associated with the advertisements. The system (10) includes a video stream encoder (12) for embedding temporal metadata into the advertisements. The method (60) includes a step (62) of reading the temporal metadata and a step (66) of updating the advertisements based on the temporal metadata. The apparatus (14) includes a recording device (22) for recording (64) portions of the video program stream, including the advertisements. The apparatus (14) also includes an advertisement reader (18) for identifying and locating suitable replacement advertisements based on the temporal metadata, and an advertisement insertion module (24) for replacing advertisements in the stored video program based on the temporal metadata.
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