ISO IEC 23009-1 AMD 1-2015 Information technology - Dynamic adaptive streaming over HTTP (DASH) - Part 1 Media presentation description and segment formats - Am.pdf
《ISO IEC 23009-1 AMD 1-2015 Information technology - Dynamic adaptive streaming over HTTP (DASH) - Part 1 Media presentation description and segment formats - Am.pdf》由会员分享,可在线阅读,更多相关《ISO IEC 23009-1 AMD 1-2015 Information technology - Dynamic adaptive streaming over HTTP (DASH) - Part 1 Media presentation description and segment formats - Am.pdf(22页珍藏版)》请在麦多课文档分享上搜索。
1、Information technology Dynamic adaptive streaming over HTTP (DASH) Part 1: Media presentation description and segment formats AMENDMENT 1: High Profile and Availability Time Synchronization Technologies de linformation Diffusion en flux adaptatif dynamique sur HTTP (DASH) Partie 1: Description de la
2、 prsentation et formats de remise des mdias AMENDEMENT 1 INTERNATIONAL STANDARD ISO/IEC 23009-1 Second edition 2014-05-15 Reference number ISO/IEC 23009-1:2014/Amd.1:2015(E) AMENDMENT 1 2015-06-15 ISO/IEC 2015 ii ISO/IEC 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015, Published i
3、n Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission ca
4、n be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO/IEC 23009-1:2014/Amd.1:2015(E)ISO/
5、IEC 23009-1:2014/Amd.1:2015(E) ISO/IEC 2015 All rights reserved iiiContents Page Foreword iv 7.3.1 General . 9 8.7 ISO base Media File Format Extended Live profile 14 8.7.1 General . 14 8.7.2 Media Presentation Description constraints 14 8.7.3 Segment format constraints . 15 8.7.4 Inband Events 15 8
6、.8 ISO Base Media File Format Extended On Demand profile 15 8.8.1 General . 15 8.8.2 Media Presentation Description constraints 16 8.8.3 Segment format constraints . 17 8.9 ISO Base Media File Format Common profile 17 8.9.1 General . 17 8.9.2 Media Presentation Description constraints 17 8.9.3 Segme
7、nt format constraints . 17 ISO/IEC 23009-1:2014/Amd.1:2015(E) iv ISO/IEC 2015 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that a
8、re members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other internatio
9、nal organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. The procedures used to develop this document and those intended for its furt
10、her maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
11、Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the
12、 Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions relat
13、ed to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/IEC JTC 1, Information technology, SC 29, Coding of a
14、udio, picture, multimedia and hypermedia information. Error! Reference source not found. ISO/IEC 23009-1:2014/Amd.1:2015(E) ISO/IEC 2015 All rights reserved 1Information technology Dynamic adaptive streaming over HTTP (DASH) Part 1: Media presentation description and segment formats, AMENDMENT 1: Hi
15、gh Profile and Availability Time Synchronization Replace 5.2.3.2 Elements and Attributes added in this Revision with 5.2.3.2 Elements and Attributes added in ISO/IEC 23009-1:2014 2 ndedition ISO/IEC 23009-1:2014/Amd.1:2015(E) 2 ISO/IEC 2015 All rights reservedAdd 5.2.3.3 Elements and Attributes adde
16、d in this Revision This revision adds the following elements and attributes to the schema defined in Annex B compared to the 2014 revision (ISO/IEC 23009-1:2014) of this part of the standard: MPD.UTCTiming ISO/IEC 23009-1:2014/Amd.1:2015(E) ISO/IEC 2015 All rights reserved 3In Table 3 add UTCTiming
17、row at the end after Metrics UTCTiming 0 . N specifies information on ways to obtain a synchronization to wall-clock time as used in this Media Presentation. The order of the elements expresses a preference of choice by the Media Presentation author. For more details refer to 5.8.4.10. ISO/IEC 23009
18、-1:2014/Amd.1:2015(E) 4 ISO/IEC 2015 All rights reservedIn 5.3.1.3 Replace with ISO/IEC 23009-1:2014/Amd.1:2015(E) ISO/IEC 2015 All rights reserved 5Add the following section 5.8.4.10 UTC Timing Descriptor Using the UTCTiming element, the Media Presentation author provides additional information for
19、 the client to optionally obtain wall-clock time to be used in Media Presentation. If multiple schemes are specified by the Media Presentation author, their order indicates their relative preference, first having the highest, and the last having the least priority. However, the client may choose any
20、 method, potentially having to deal with reduced accuracy. ISO/IEC 23009-1:2014/Amd.1:2015(E) 6 ISO/IEC 2015 All rights reservedAdd the following section 5.8.5.X DASH UTC Timing Schemes This part of the Standard defines several methods, specified in Table X, by which DASH clients can obtain wall-clo
21、ck times as used by the Media Presentation. Specifically this clock is synchronized to the one used to generate the MPD. ISO/IEC 23009-1:2014/Amd.1:2015(E) ISO/IEC 2015 All rights reserved 7Table X Different UTC timing Methods schemeIdURI Description urn:mpeg:dash:utc:ntp:2014 The identifier indicat
22、es that the value contains a white-space separated list of servers that are recommended to be used in combination with the NTP protocol as defined in IETF RFC 5905 for getting the appropriate time. urn:mpeg:dash:utc:sntp:2014 The identifier indicates that the value contains a white-space separated l
23、ist of servers that are recommended to be used in combination with the SNTP protocol as defined in IETF RFC 5905 for getting the appropriate time. urn:mpeg:dash:utc:http- head:2014 The identifier indicates that the value contains a white-space separated list of HTTP URLs that are recommended to be u
24、sed in combination with the HTTP protocol as defined in IETF RFC 2616 for getting the appropriate time. The value of the value attribute contains a white-space separated list of HTTP URLs to which HTTP HEAD requests can be made to obtain the Date information in the HTTP Header providing the wall-clo
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ISOIEC230091AMD12015INFORMATIONTECHNOLOGYDYNAMICADAPTIVESTREAMINGOVERHTTPDASHPART1MEDIAPRESENTATIONDESCRIPTIONANDSEGMENTFORMATSAMPDF

链接地址:http://www.mydoc123.com/p-1257084.html