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# Analyze Video

CFS extracts metadata from video files but cannot process their content, so by default documents that represent video are indexed without any content.

To enrich documents that represent video, you can send the video to an IDOL Media Server for analysis. Media Server can:

- identify people that appear in a video by matching faces to a database of known faces.
- identify known logos and objects that appear in a video.
- extract text that is present in a video (such as the scrolling text that appears at the bottom of the screen during a news broadcast).
- read the number plates of vehicles that appear in a video, and identify the color of the vehicles.
- identify suspicious events in video from CCTV cameras, such as a vehicle breaking traffic laws or a person entering a restricted area.
- determine whether the audio contains speech, and convert the speech into text (requires an IDOL Speech Server).
- identify people who speak in a video (requires an IDOL Speech Server).

For more information about the types of analysis that you can run, refer to the Media Server Administration Guide.

Note: Some types of analysis require you to train Media Server before you start processing.

CFS adds the results of the analysis to your documents. By default, the information is added in the same structure that is returned from Media Server, in a document field named `VideoServerAnalysis`. You can configure CFS to run an XSL transformation to transform the information before adding it a document.

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