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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.
Standards and Dolby documentsStandards and Dolby documents provide additional information to assist you in designing your product.

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.
- About this documentation This documentation is part of the Dolby Digital Plus Online Delivery Kit. For a Dolby Digital Plus online delivery product (content creation or playback system) to receive approval from Dolby Laboratories, it must meet the requirements listed in the corresponding system development guide for the technology or technologies the product supports. Dolby Laboratories provides test materials to evaluate whether the product satisfies requirements and recommendations. Test materials are contained in the Dolby Digital Plus Online Delivery Kit.
- New in this versionThis version of the documentation contains new or changed information from the previous version.
- Standards and Dolby documentsStandards and Dolby documents provide additional information to assist you in designing your product.
- Channel abbreviationsThis table lists the channel notations used in this document.
- Contacting Dolby Support services are available to address any questions and to provide advice about integrating Dolby technology into your product.
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.
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
Notices

Standards and Dolby documents

Standards and Dolby documents provide additional information to assist you in designing your product.

Standards

ETSI TS 102 366 v1.4.1 (2017), Digital Audio Compression (AC-3, Enhanced AC-3) Standard, available from http://www.etsi.org.
ETSI TS 102 366 v1.4.1 (2017), Digital Audio Compression (AC-3, Enhanced AC-3) Standard, Annex E (normative), available from http://www.etsi.org. This documentation describes the Dolby Digital Plus (E-AC-3) bitstream syntax.
ETSI TS 102 366 v1.4.1 (2017), Digital Audio Compression (AC-3, Enhanced AC-3) Standard, Annex F, available from http://www.etsi.org. This document describes Dolby Digital Plus and Dolby Digital bitstream encapsulation within the ISO base media file format.
ISO/IEC 14496-12:2020, Information Technology—Coding of Audio-Visual Objects, Part 12: ISO Base Media File Format, available from http://www.iso.org. This documentation is Part 12 of the MPEG-4 specification and describes storage of content in a media file.
ISO/IEC 23009-1:2019, Information Technology—Dynamic Adaptive Streaming over HTTP (DASH)—Part 1: Media Presentation Description and Segment Formats, available from http://www.iso.org.
ETSI TS 102 796 v1.6.1, Hybrid Broadcast Broadband TV, available from http://www.etsi.org.
HTTP Live Streaming 2nd Edition , available from https://datatracker.ietf.org. (Search for "HTTP Live Streaming".)
ISO/IEC 13818-1:2019, Information Technology—Generic Coding of Moving Pictures and Associated Audio Information: Systems, available from http://www.iso.org.
RFC 6381, The 'Codecs' and 'Profiles' Parameters for "Bucket" Media Types, August 2011, available from http://tools.ietf.org/html.
ISO 639-2:1998, Codes for the Representation of Names of Languages, Part 2: Alpha-3 Code, as maintained by the ISO 639/Joint Advisory Committee, available from http://www.iso.org.