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本文(ITU-T J 203-2008 Common core for digital video recorder platform (Study Group 9)《数字视频录像机平台的通用核心 研究小组9》.pdf)为本站会员(wealthynice100)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

ITU-T J 203-2008 Common core for digital video recorder platform (Study Group 9)《数字视频录像机平台的通用核心 研究小组9》.pdf

1、 International Telecommunication Union ITU-T J.203TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (06/2008) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS Application for Interactive Digital Television Common core for digital video recorder plat

2、formRecommendation ITU-T J.203 Rec. ITU-T J.203 (06/2008) i Recommendation ITU-T J.203 Common core for digital video recorder platform Summary Recommendation ITU-T J.203 defines the APIs, semantic guarantees and system aspects of a harmonized digital video recorder platform. Source Recommendation IT

3、U-T J.203 was approved on 13 June 2008 by ITU-T Study Group 9 (2005-2008) under Recommendation ITU-T A.8 procedure. ii Rec. ITU-T J.203 (06/2008) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and comm

4、unication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. T

5、he World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution

6、 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a

7、 recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. T

8、he words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibilit

9、y that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recomm

10、endation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information

11、and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2009 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T J.203 (06/2008) iii CONTENTS Page 1 Scope

12、 1 2 References. 1 2.1 Normative References 1 2.2 Informative References 1 3 Definitions 2 4 Abbreviations 2 5 Conventions 2 6 Common platform definition of Digital Video Recorders 2 Annex A DVR/PVR Common Core APIs 3 Appendix I OCAP additional APIs. 4 Appendix II MHP additional APIs . 5 Appendix II

13、I Summary of API Changes. 6 iv Rec. ITU-T J.203 (06/2008) Introduction This Recommendation is intended to harmonize an application environment for the digital video recorder extension to Recommendation ITU-T J.202. This work was carried out as a joint effort between DVB and CableLabs. Rec. ITU-T J.2

14、03 (06/2008) 1 Recommendation ITU-T J.203 Common core for digital video recorder platform 1 Scope The 2006 edition of Recommendation ITU-T J.203, Common core for digital video recorder platform was based on the work of the DVB and Cablelabs and was published as an informative document by the DVB. Si

15、nce that time, ETSI has published a revised and updated version 1. This Recommendation revises Recommendation ITU-T J.203 to align with 1. This Recommendation defines a modular extension to Recommendation ITU-T J.202, and updated as GEM 1, which defines how the recording and playback of digital vide

16、o (and audio) content is integrated with the GEM 1 platform. This Recommendation is firstly intended to be used by entities writing terminal specifications and/or standards that extend a GEM 1 terminal specification with digital video (and audio) recording and playback. Secondly, it is intended for

17、developers of GEM 1 applications that wish to use digital video (and audio) recording and playback. Implementers should consult the publisher of specifications which reference GEM 1 regarding conformance. NOTE 1 This Recommendation defines the interfaces visible to applications. Application develope

18、rs should not assume that any related interface is available unless it is specifically listed. Terminal standards or implementations may have other interfaces present. One of the primary goals of this Recommendation is to maximize the common aspects concerning the integration of digital video/audio

19、recording between MHP 3 and the various GEM 1 terminal specifications. NOTE 2 The structure and content of this Recommendation have been organized for ease of use by those familiar with the original source material; as such, the usual style of ITU-T Recommendations has not been applied. 2 References

20、 2.1 Normative references The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subje

21、ct to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is published regularly. The reference to a document w

22、ithin this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. 1 ETSI TS 102 817 V1.1.1 (2007-09), Digital Video Broadcasting (DVB); Digital Recording Extension to Globally Executable Multimedia Home Platform (GEM). (http:/webapp.etsi.org/exchangefolder/ts_102

23、817v010101p.pdf) (http:/webapp.etsi.org/exchangefolder/ts_102817v010101p0.zip) 2.2 Informative references 2 OC-SP-OCAP-DVR-I03-070509 (2007), OCAP DVR Extension. (http:/ 3 ETSI TS 102 816 V1.1.1 (2007-09), Digital Video Broadcasting (DVB); Personal Video Recorder (PVR)/Personal Data Recorder (PDR) E

24、xtension to the Multimedia Home Platform. (http:/webapp.etsi.org/exchangefolder/ts_102816v010101p.pdf) (http:/webapp.etsi.org/exchangefolder/ts_102816v010101p0.zip) 2 Rec. ITU-T J.203 (06/2008) 3 Definitions This Recommendation defines the following term: 3.1 synthesized timeline: A timeline for a p

25、iece of content which was synthesized by the GEM recording terminal (as opposed to being included as part of the piece of content when it was transmitted). 4 Abbreviations This Recommendation uses the abbreviations given in clause 3 of 1. 5 Conventions This Recommendation includes the conventions of

26、 clause 4 in 1. 6 Common platform definition of Digital Video Recorders It is recommended to use 1 for common core for digital video recorder platform. The recommended platform definitions for the common core are defined in Annex A. Regional extensions are presented in Appendices I and II. Appendix

27、III summarizes changes to the platform definitions presented in this Recommendation. Rec. ITU-T J.203 (06/2008) 3 Annex A DVR/PVR Common Core APIs (This annex forms an integral part of this Recommendation) The following APIs are defined by ETSI 1 and form the content of this annex. org.ocap.shared.d

28、vr org.ocap.shared.dvr.navigation org.ocap.shared.media 4 Rec. ITU-T J.203 (06/2008) Appendix I OCAP additional APIs (This appendix does not form an integral part of this Recommendation) The following APIs are defined by OCAP 2 and form the content of this appendix. org.ocap.dvr org.ocap.dvr.even or

29、g.ocap.dvr.storageRec. ITU-T J.203 (06/2008) 5 Appendix II MHP additional APIs (This appendix does not form an integral part of this Recommendation) The following APIs are defined by ETSI 3 and form the content of this appendix. org.dvb.pvr org.dvb.pvr.navigation6 Rec. ITU-T J.203 (06/2008) Appendix

30、 III Summary of API changes (This appendix does not form an integral part of this Recommendation) 1) Addition of two new states in org.ocap.shared.dvr.LeafRecording Request 2) Modification of org.ocap.shared.dvr.LeafRecording Request.getService() 3) Modification of some of the semantics of org.ocap.

31、shared.dvr.LocatorRecordingSpec 4) Modification of some of the semantics of org.ocap.shared.dvr.navigation.RecordingList 5) Addition of org.ocap.shared.dvr.navigation.getCascadingFilter() method 6) Modification of some of the semantics of org.ocap.shared.dvr.navigation.Recording ListIterator 7) Modi

32、fication of some of the semantics of org.ocap.shared.dvr.ParentRecordingRequest 8) Modification of some of the semantics of org.ocap.shared.dvr.RecordedService 9) Addition of new constructor to org.ocap.shared.dvr.RecordingChangedEvent and modification of some of the semantics 10) Addition of new ex

33、ceptions to org.ocap.shared.dvr.RecordingFailedException and modification of some of the semantics 11) Modification of some of the semantics of org.ocap.shared.dvr.RecordingManager 12) Modification of inheritance to org.ocap.shared.dvr.RecordingPermission and removal of a method 13) Modification of

34、some of the semantics of org.ocap.shared.dvr.RecordingRequest 14) Modification of some of the semantics of org.ocap.shared.dvr.RecordingTerminatedEvent and correction of javadoc error 15) Add org.ocap.shared.dvr.SegmentedRecordedService 16) Modification of some of the semantics of org.ocap.shared.dv

35、r.ServiceContextRecording Spec 17) Modification of some of the semantics of org.ocap.shared.dvr.ServiceRecordingSpec 18) Modification of some of the semantics of org.ocap.shared.media.BeginningContentEvent 19) Modification of some of the semantics of org.ocap.shared.media.EndOfContentEvent 20) Add o

36、rg.ocap.shared.dvr.media.FrameControl 21) Modification of some of the semantics of org.ocap.shared.media.MediaTimeFactoryControl 22) Modification of some of the semantics of org.ocap.shared.media.TimeLine 23) Modification of some of the semantics of org.ocap.shared.media.TimeShiftControl Printed in

37、Switzerland Geneva, 2009 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Series E Overall network operation, telephone service, service operation and human factors Series F Non-telephone telecommunication services Series G Transmission sy

38、stems and media, digital systems and networks Series H Audiovisual and multimedia systems Series I Integrated services digital network Series J Cable networks and transmission of television, sound programme and other multimedia signals Series K Protection against interference Series L Construction,

39、installation and protection of cables and other elements of outside plant Series M Telecommunication management, including TMN and network maintenance Series N Maintenance: international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Tele

40、phone transmission quality, telephone installations, local line networks Series Q Switching and signalling Series R Telegraph transmission Series S Telegraph services terminal equipment Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems

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