...

In this case, publishers implement a page tag that automatically calls Verity to analyse analyze a page whenever a user visits the page. 

A For example, a publisher could set pages up a page tag to fetch new ads for the page based on the page keywords identified by Verity. Initial ad loading is disabled until Verity . In this case, a callback could publish returns the keyword data. A callback publishes targeting keywords using the Verity data, then fetch fetches new ads using via Google publisher Tag refresh functionality. The page could be configured to disable the initial loading of ads until Verity returns analysis data.

Processing Time

Once a request is sent, Verity takes less than a second to return an initial response, indicating whether or not data is already available for the URL.

...

• Audio
  Transcription of the video's audio track. The maximum transcription length supported is 14400 seconds.

• OCR
  Text and cursive text detected in the video frames. OCR is included in the process when the video transcription yields fewer than 50 words. 

• Metadata and Titletitle
  Page title and metadata.

• Video Frame Sampling
  frames
  Sampling is performed at a rate of 1 frame per second.

• Video formats
  Supported formats are MPEG-4, MOV, MP3, FLAC, and M3U8.

• Video size
  The maximum video size is 2 GB.

Verity Does Not Process User Information

...