Media Presentation Description with Dolby Digital Plus
This section defines the values that enable an MPD to properly describe a Dolby Digital Plus bitstream.
Although the syntax of the MPD is capable of using common XML elements to describe almost any media format, the encoding type and the configuration of a Dolby Digital Plus bitstream that is part of a content presentation constrain the parameter values of some of these elements.
The MPD supports these scenarios:
- Media presentations that consist of a single Dolby Digital Plus bitstream
- Media presentations that consist of multiple Dolby Digital Plus bitstreams, with each bitstream stored in a separate MP4 file or segment file
It is possible for the MPD to describe multiple audio services delivered using multiple Dolby Digital Plus bitstreams (for example, a main audio service and an associated audio service that are intended to be decoded and then mixed together).