HTTP Live Streaming
draft-pantos-http-live-streaming-21

Document Type Active Internet-Draft (individual)
Last updated 2017-03-27
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Informational                                             R. Pantos, Ed.
Internet-Draft                                                Apple Inc.
Intended status: Informational                                    W. May
Expires: September 28, 2017         Major League Baseball Advanced Media
                                                          March 27, 2017

                          HTTP Live Streaming
                  draft-pantos-http-live-streaming-21

Abstract

   This document describes a protocol for transferring unbounded streams
   of multimedia data.  It specifies the data format of the files and
   the actions to be taken by the server (sender) and the clients
   (receivers) of the streams.  It describes version 7 of this protocol.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on September 28, 2017.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   This document may not be modified, and derivative works of it may not

Pantos & May           Expires September 28, 2017               [Page 1]
Internet-Draft             HTTP Live Streaming                March 2017

   be created, and it may not be published except as an Internet-Draft.

   This Informational Internet Draft is submitted as an RFC Editor
   Contribution and/or non-IETF Document (not as a Contribution, IETF
   Contribution, nor IETF Document) in accordance with BCP 78 and BCP
   79.

Table of Contents

   1.  Introduction to HTTP Live Streaming . . . . . . . . . . . . .   3
   2.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Media Segments  . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Supported Media Segment Formats . . . . . . . . . . . . .   6
     3.2.  MPEG-2 Transport Streams  . . . . . . . . . . . . . . . .   6
     3.3.  Fragmented MPEG-4 . . . . . . . . . . . . . . . . . . . .   6
     3.4.  Packed Audio  . . . . . . . . . . . . . . . . . . . . . .   7
     3.5.  WebVTT  . . . . . . . . . . . . . . . . . . . . . . . . .   8
   4.  Playlists . . . . . . . . . . . . . . . . . . . . . . . . . .   8
     4.1.  Definition of a Playlist  . . . . . . . . . . . . . . . .   9
     4.2.  Attribute Lists . . . . . . . . . . . . . . . . . . . . .  10
     4.3.  Playlist Tags . . . . . . . . . . . . . . . . . . . . . .  11
       4.3.1.  Basic Tags  . . . . . . . . . . . . . . . . . . . . .  11
         4.3.1.1.  EXTM3U  . . . . . . . . . . . . . . . . . . . . .  11
         4.3.1.2.  EXT-X-VERSION . . . . . . . . . . . . . . . . . .  12
       4.3.2.  Media Segment Tags  . . . . . . . . . . . . . . . . .  12
         4.3.2.1.  EXTINF  . . . . . . . . . . . . . . . . . . . . .  12
         4.3.2.2.  EXT-X-BYTERANGE . . . . . . . . . . . . . . . . .  13
         4.3.2.3.  EXT-X-DISCONTINUITY . . . . . . . . . . . . . . .  13
         4.3.2.4.  EXT-X-KEY . . . . . . . . . . . . . . . . . . . .  14
         4.3.2.5.  EXT-X-MAP . . . . . . . . . . . . . . . . . . . .  16
         4.3.2.6.  EXT-X-PROGRAM-DATE-TIME . . . . . . . . . . . . .  17
         4.3.2.7.  EXT-X-DATERANGE . . . . . . . . . . . . . . . . .  17
           4.3.2.7.1.  Mapping SCTE-35 into EXT-X-DATERANGE  . . . .  19
       4.3.3.  Media Playlist Tags . . . . . . . . . . . . . . . . .  21
         4.3.3.1.  EXT-X-TARGETDURATION  . . . . . . . . . . . . . .  21
         4.3.3.2.  EXT-X-MEDIA-SEQUENCE  . . . . . . . . . . . . . .  21
         4.3.3.3.  EXT-X-DISCONTINUITY-SEQUENCE  . . . . . . . . . .  22
         4.3.3.4.  EXT-X-ENDLIST . . . . . . . . . . . . . . . . . .  22
         4.3.3.5.  EXT-X-PLAYLIST-TYPE . . . . . . . . . . . . . . .  23
         4.3.3.6.  EXT-X-I-FRAMES-ONLY . . . . . . . . . . . . . . .  23
       4.3.4.  Master Playlist Tags  . . . . . . . . . . . . . . . .  24
         4.3.4.1.  EXT-X-MEDIA . . . . . . . . . . . . . . . . . . .  24
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