DASH Service Description: Operating Bandwidth

[dsilhavy]

A brief description of the use case for the new test content.

ISO/IEC 23009-1 Annex K defines the usage of Service Description elements to control specific settings on the client side such as the target latency, the desired minimum/maximum bandwidth and the maximum playback rate.

The goal of this test content is to add a ServiceDescription element including OperatingBandwidth elements.

Test content requirements

General description and requirements

• A live MPD with a single period
• The MPD contains a ServiceDescription element with two OperatingBandwidth elements
• The first OperatingBandwidth element contains the following attributes
  • mediaType set to "video"
  • min set to a value larger than the lowest bandwidth value of all video representations
  • max set to a value smaller than the highest bandwidth value of all video representations
  • target set to the value of the video representation having a bandwidth closest to the average bandwidth
• The second OperatingBandwidth element contains the following attributes
  • mediaType set to "audio"
  • min set to a value larger than the lowest bandwidth value of all audio representations
  • max set to a value smaller than the highest bandwidth value of all audio representations
  • target set to the value of the audio representation having a bandwidth closest to the average bandwidth