Live Media and Metadata Ingest Protocol
draft-mekuria-mmediaingest-01

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Last updated 2018-07-16
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Rufael Mekuria
                                            Unified Streaming
Internet Engineering Task Force             Sam Geqiang Zhang 
Internet-Draft                              Microsoft 
Expires: January 15, 2019                 

Intended status: Best Current Practice      July 15  2018

          Live Media and Metadata Ingest Protocol
             draft-mekuria-mmediaingest-01.txt

Abstract

   This Internet draft presents a best industry practice for 
   ingesting encoded live media to media processing entities. 
   Two profiles of the media ingest are defined covering the most 
   common use cases. The first profile facilates active media 
   processing and is based on the fragmented MPEG-4 format. 
   The second profile enables efficient ingest of media streaming 
   presentations based on established streaming protocols
   by also adding a manifest besides the fragmented MPEG-4 stream. 
   Details on carriage of metadata markers, timed text, 
   subtitles and encryption specific metadata are also included.
  
Status of This Memo

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   Mekuria & Zhang          Expires January 15 2019        [Page1]
   



Copyright Notice

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Table of Contents

   1.  Introduction
   2.  Conventions and Terminology
   3.  Media Ingest Workflows and Use Cases
   4.  General Media Ingest Protocol Behavior 
   5.  Profile 1: Fragmented MPEG-4 Ingest General Considerations
   6.  Profile 1: Fragmented MPEG-4 Ingest Protocol Behavior
       6.1 General Protocol Requirements
       6.2 Requirements for Formatting Media Tracks
       6.3 Requirements for Timed Text Captions and Subtitle Streams
       6.4 Requirements for Timed Metadata
       6.5 Requirements for Media Processing Entity Failover
       6.6 Requirements for Live Media Source Failover
   7.  Profile 2: DASH and HLS Ingest General Considerations
   8.  Profile 2: DASH and HLS Ingest Protocol Behavior
       8.1 General Protocol requirements
       8.2 Requirements for Formatting Media Tracks
       8.3 Requirements for Timed Text, Caption and Subtitle Streams
       8.4 Requirements for Timed Metadata
       8.5 Requirements for Media Processing Entity Failover
       8.6 Requirements for Live Media Source Failover
   9.  Security Considerations
   10. IANA Considerations
   11. Contributors
   12. References
     12.1.  Normative References
     12.2.  Informative References
     12.3.  URL References
   Author's Address
 
 
 
 
 
 
  
Mekuria & Zhang        Expires January 15 2019                [Page2]
   

 

1.  Introduction

   This document describes a best practice for ingesting 
   encoded media content from a live source such as a 
   live video encoder towards distributed media 
   processing entities. Examples of such entities
   include media packagers, publishing points, 
   streaming origins and content delivery networks.
   The combination of live sources ingesting 
   media and distributed media processing entities 
   is important in practical video streaming deployments.   
   In such deployments, interoperability between 
   live sources and downstream processing 
   entities can be challenging. 
   This challenge comes from the fact that 
   there are multiple levels of interoperability 
   that need to be adressed and achieved. 
   
   For example, the network protocol for transmission 
   of data and the setup of the connectivity are important. 
   This includes schemes for establishing the ingest 
   connection, handling disconnections and failures,
   procedures for repeatedly sending and receving
   the data, and timely resolution of hostnames. 
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