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Method and apparatus for measuring stream availability, quality and performance

  • US 7,725,576 B2
  • Filed: 03/06/2006
  • Issued: 05/25/2010
  • Est. Priority Date: 02/11/2002
  • Status: Active Grant
First Claim
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1. A stream monitoring system, comprising:

  • one or more stream monitoring computers including a first sub-system for provisioning a stream quality test;

    a set of monitoring agents positioned at given network locations for executing the stream quality test, each of the monitoring agents associated with a streaming media player having a core and a renderer, each agent comprising;

    code executed in association with the streaming media player for intercepting each useful packet of a given stream as the useful packet exits the core and before the useful packet enters the renderer, wherein each useful packet has a given set of properties, wherein the properties are that the packet has not been thinned by a server, that the packet was not lost in an unrecoverable manner during transport, and that the packet arrived at the renderer in time to be useful for rendering;

    code for capturing a given stream quality metric from the intercepted useful packets; and

    code for outputting data associated with the given stream quality metric;

    the one or more stream monitoring computers also including a second sub-system for collecting the data from the set of monitoring agents.

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