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Dolby Digital Plus and MPEG-DASHThese topics provide guidance to assist you in meeting the requirements for delivering Dolby Digital Plus streams using the MPEG-DASH standard in conjunction with the ISO base media file format.
Media Presentation DescriptionA Media Presentation Description (MPD) is a hierarchical XML document that provides information for an MPEG-DASH client about the available content for a media presentation.
Media Presentation Description file examplesThis section contains example MPD files for different media presentations.

IntroductionThis documentation supports the system designers and engineers who are building a content creation product. It lists the requirements for creating Dolby Digital Plus content in such a product and provides guidance to help in meeting the requirements.
Product overviewA typical product built and tested using the resources in this kit delivers Dolby Digital Plus content in an online container that supports adaptive streaming.
RequirementsAn online delivery content creation product must meet all defined requirements for the online delivery formats it supports.
Dolby Digital Plus streams in online delivery formatsThe Dolby Digital Plus format provides a high level of flexibility and can support complex bitstream configurations. To minimize impact on decoding devices while ensuring that a wide range of applications can be supported, some constraints are applied to the permitted bitstream structure and to bitstream parameter settings.
Dolby Digital Plus and MPEG-DASHThese topics provide guidance to assist you in meeting the requirements for delivering Dolby Digital Plus streams using the MPEG-DASH standard in conjunction with the ISO base media file format.
- Packetization of Dolby Digital Plus bitstreamsThis section describes the process of analyzing and preparing a Dolby Digital Plus bitstream for storage within an MPEG-DASH compliant ISO base media file.
- Media Presentation DescriptionA Media Presentation Description (MPD) is a hierarchical XML document that provides information for an MPEG-DASH client about the available content for a media presentation.
  - Media Presentation Description with Dolby Digital Plus This section defines the values that enable an MPD to properly describe a Dolby Digital Plus bitstream.
  - Media Presentation Description for the HbbTV environmentThe MPD for an HbbTV presentation must follow the same requirements as an MPEG-DASH presentation. In addition, HbbTV-specific requirements apply.
  - Media Presentation Description file examplesThis section contains example MPD files for different media presentations.
    - Media Presentation Description for a single video component and single audio componentThis MPD example describes a simple media presentation that consists of a single video component with a single 5.1-channel (L, C, R, Ls, Rs, LFE) Dolby Digital Plus audio component. Three representations of the video content and three representations of the audio content are provided, each at a different data rate.
    - Media Presentation Description for multiple-codec bitstreamsThis MPD example describes a static media presentation with a single video component and two different audio presentations provided.
    - Media Presentation Description for a single video component and dual audio components with Dolby Atmos contentThis MPD example describes a media presentation that consists of a single video component with three representations provided at bit rates between 1.5 Mbps and 5 Mbps in different spatial resolutions.
Dolby Digital Plus and HTTP Live StreamingThis section specifies the required data formatting and signaling between the server (sender) and the clients (receivers) to use Dolby Digital Plus audio bitstreams in Apple HTTP Live Streaming audio/video (A/V) delivery applications.
Dolby Digital Plus and ISO base media file formatThis section describes the process of analyzing and preparing a Dolby Digital Plus bitstream for online delivery within an ISO base media file.
Glossary
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Media Presentation Description file examples

This section contains example MPD files for different media presentations.