Dolby AC-4 in MPEG-DASH for Online Delivery

Introduction to the Dolby AC-4 in MPEG-DASH for online delivery specification
Dolby AC-4 packetization into MPEG-DASH compliant ISO base media files
Media Presentation Description with Dolby AC-4
Demultiplexing a Dolby AC-4 bitstream from an MPEG-DASH compliant ISO base media file segment
MPEG‑DASH and Dolby AC-4 overview
Glossary
Notices

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Media Presentation Description with Dolby AC-4
Media Presentation Description file examples

Media Presentation Description file examples

Example MPD files for different media presentations are provided.

Media Presentation Description for a single video component and single audio component
This 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 AC-4 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 a single video component and an immersive stereo audio component
This MPD example consists of two adaptation sets. One adaptation set contains an H.264 video representation, and the other one contains a 2.0-channel immersive stereo audio representation.
Media Presentation Description with multiple adaptation sets
This MPD example consists of three adaptation sets. The first one is a video adaptation set containing an H.264 video representation. The other two are audio adaptation sets, one containing a 2.0-channel Dolby AC-4 audio representation, and one containing a 5.1-channel Dolby AC-4 audio representation.
Media Presentation Description with a single audio component
This MPD example consists of one audio adaptation set with a 5.1.2 channel-based immersive Dolby AC-4 representation.

Media Presentation Description with Dolby AC-4

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Dolby AC-4 in MPEG-DASH for Online Delivery Specification

15 September 2020

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