# Video Matching

This section describes the actions that you can use to train video matching.

NOTE: Apart from ListVideoMatchDatabases and ListVideoMatchClips, all of these actions are administrative actions. Administrative actions can be sent only by users who belong to an authorization role that allows the `Admin` standard role, or which enables the action explicitly. See Authorization Roles Configuration Parameters.

AddVideoMatchClipMetadata | Adds custom metadata (a key-value pair) to a clip.
CreateVideoMatchDatabase | Creates a new, empty, database to store training data for video matching.
ExportVideoMatchDatabase | Exports a video match database.
ImportVideoMatchDatabase | Imports a video match database.
ListVideoMatchClips | Lists video clips in a specified database.
ListVideoMatchDatabases | Lists the databases that have been created for video matching.
RemoveVideoMatchClip | Removes (deletes) an existing video clip.
RemoveVideoMatchClipMetadata | Removes custom metadata (a key-value pair) from a clip.
RemoveVideoMatchDatabase | Removes (deletes) a database that stores training data for video matching.
RenameVideoMatchDatabase | Renames a database that stores training data for video matching.
SyncVideoMatchClips | Forces Media Server to synchronize with the latest video match training in the database.
TrainVideoMatchClip | Trains Media Server to recognize a video clip.
UpdateVideoMatchClipMetadata | Updates the value of a key-value pair in the custom metadata of a clip.

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