Media Server 25.4
Media Server Help

# AndNotThen Engine

The `AndNotThen` engine is the same as the AndNot engine, except for the following differences:

- Records in the additional tracks that start before the record in the `Input0` track are ignored and do not prevent the record in the `Input0` track being added to the output. In other words, the `AndNotThen` engine enforces an additional TimestampCondition (in addition to any conditions that you specify):

  `startX >= start0`

- This engine is available only for processing video. It is not supported with images and documents.

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Media Server 25.4

Topic Title: AndNotThen Engine