2.2.1.4.24 speed

When used in a request, this token specifies a speed-up factor, in which the client is requesting that the server apply its normal transmission rate.

When used in a response, this token specifies the speed-up factor that the server is intending to apply to its normal transmission rate.

The normal transmission rate is defined as the sum of the average bit rates of the ASF streams that will be transmitted. If an AccelBW (section 2.2.1.4.1) token has been specified in the request, this MUST NOT affect the determination of the normal bit rate.

This token is defined for use only in requests sent to a server with a version greater than or equal to 5.0 (as specified by the server in the Server header).<36>

The value MUST be a real number in the range from 1 through 4,294,967,295.

The syntax of the Speed token is defined as follows.

 speed    = "Speed=" 1*DIGIT["." 1*3DIGIT]          
  

In the example below, the value indicates 5 times faster than real time:

 Pragma: Speed=5.000