HTTP Live Streaming
draft-pantos-http-live-streaming-16

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Informational                                             R. Pantos, Ed.
Internet-Draft                                                    W. May
Intended status: Informational                                Apple Inc.
Expires: October 17, 2015                                 April 15, 2015

                          HTTP Live Streaming
                  draft-pantos-http-live-streaming-16

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 October 17, 2015.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   This document may not be modified, and derivative works of it may not
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Pantos & May            Expires October 17, 2015                [Page 1]
Internet-Draft             HTTP Live Streaming                April 2015

   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
   4.  Playlists . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Definition of a Playlist  . . . . . . . . . . . . . . . .   7
     4.2.  Attribute Lists . . . . . . . . . . . . . . . . . . . . .   8
     4.3.  Playlist Tags . . . . . . . . . . . . . . . . . . . . . .   9
       4.3.1.  Basic Tags  . . . . . . . . . . . . . . . . . . . . .   9
         4.3.1.1.  EXTM3U  . . . . . . . . . . . . . . . . . . . . .   9
         4.3.1.2.  EXT-X-VERSION . . . . . . . . . . . . . . . . . .  10
       4.3.2.  Media Segment Tags  . . . . . . . . . . . . . . . . .  10
         4.3.2.1.  EXTINF  . . . . . . . . . . . . . . . . . . . . .  10
         4.3.2.2.  EXT-X-BYTERANGE . . . . . . . . . . . . . . . . .  11
         4.3.2.3.  EXT-X-DISCONTINUITY . . . . . . . . . . . . . . .  11
         4.3.2.4.  EXT-X-KEY . . . . . . . . . . . . . . . . . . . .  12
         4.3.2.5.  EXT-X-MAP . . . . . . . . . . . . . . . . . . . .  14
         4.3.2.6.  EXT-X-PROGRAM-DATE-TIME . . . . . . . . . . . . .  15
       4.3.3.  Media Playlist Tags . . . . . . . . . . . . . . . . .  15
         4.3.3.1.  EXT-X-TARGETDURATION  . . . . . . . . . . . . . .  15
         4.3.3.2.  EXT-X-MEDIA-SEQUENCE  . . . . . . . . . . . . . .  15
         4.3.3.3.  EXT-X-DISCONTINUITY-SEQUENCE  . . . . . . . . . .  16
         4.3.3.4.  EXT-X-ENDLIST . . . . . . . . . . . . . . . . . .  17
         4.3.3.5.  EXT-X-PLAYLIST-TYPE . . . . . . . . . . . . . . .  17
         4.3.3.6.  EXT-X-I-FRAMES-ONLY . . . . . . . . . . . . . . .  17
       4.3.4.  Master Playlist Tags  . . . . . . . . . . . . . . . .  18
         4.3.4.1.  EXT-X-MEDIA . . . . . . . . . . . . . . . . . . .  18
           4.3.4.1.1.  Rendition Groups  . . . . . . . . . . . . . .  21
         4.3.4.2.  EXT-X-STREAM-INF  . . . . . . . . . . . . . . . .  21
           4.3.4.2.1.  Alternative Renditions  . . . . . . . . . . .  24
         4.3.4.3.  EXT-X-I-FRAME-STREAM-INF  . . . . . . . . . . . .  25
         4.3.4.4.  EXT-X-SESSION-DATA  . . . . . . . . . . . . . . .  25
       4.3.5.  Media or Master Playlist Tags . . . . . . . . . . . .  26
         4.3.5.1.  EXT-X-INDEPENDENT-SEGMENTS  . . . . . . . . . . .  27
         4.3.5.2.  EXT-X-START . . . . . . . . . . . . . . . . . . .  27
   5.  Key files . . . . . . . . . . . . . . . . . . . . . . . . . .  28
     5.1.  Structure of Key files  . . . . . . . . . . . . . . . . .  28
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