Dolby AC-4 in MPEG-DASH for Broadcast Services

Specification

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  • Introduction to the Dolby AC-4 in MPEG-DASH for broadcast services specification
    • About this documentation
    • Conventions used
    • Resources
    • Contacting Dolby
  • Dolby AC-4 packetization into MPEG-DASH compliant ISO base media files
    • Constraints on Dolby AC-4 elementary streams within MPEG-DASH ISO base media file format segments
    • Content of the MP4 sample
    • Reading Dolby AC-4 frames from an .ac4 file
    • Packetizing the Dolby AC-4 bitstream
    • Signaling bitstreams in an MPEG‑DASH–compliant ISO base media file format
      • Signaling a bitstream in an encrypted ISO base media format file
      • AC-4 DSI syntax changes to signal immersive stereo content
        • Changes to AC4 DSI
        • Extension to AC-4 DSI
      • Signaling immersive stereo content
    • Contents of AC4SpecificBox
    • A/V alignment and segmentation
  • Media Presentation Description with Dolby AC-4
    • Media Presentation Description
      • Normative requirements
      • Profiles
      • Periods
      • Adaptation sets and representations
      • Preselections
      • Attributes and descriptors
        • Codecs attribute
        • MIME type attribute
        • ID attribute
        • Language attribute
        • Preselection components and tag attributes
        • Label descriptor by Label element
        • Accessibility and Role descriptors
          • Audio Description/Visual Description service
          • Emergency
        • AudioChannelConfiguration descriptor
        • Descriptors for AC-4 frame rate
    • MPD for immersive stereo content
    • Media Presentation Description file examples
      • Media Presentation Description including video and audio adaptation sets
      • Media Presentation Description including multiple audio adaptation sets
      • Media Presentation Description including preselections
  • Demultiplexing a Dolby AC-4 bitstream from an MPEG-DASH compliant ISO base media file segment
    • Buffering considerations
    • AC4SampleEntry and Dolby AC-4 bitstream parameter conflicts
    • AC4SpecificBox and Dolby AC-4 bitstream parameter conflicts
  • MPEG‑DASH and Dolby AC-4 overview
    • MPEG Dynamic Adaptive Streaming over HTTP with ISO containers
    • MPEG-DASH Media Presentation Description file
    • Raw AC-4 frame
    • Random access point
  • Glossary
  • Notices
    • Copyright
    • Trademarks
    • Confidential information