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SCENE Tune in to Digital Convergence

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SCENE Tune in to Digital Convergence Edition No.12 December 2004 DVB - SCENE Tune in to Digital Convergence SOUND advice 12 The Standard for the Digital World This issue’s highlights > DVB 3.0 > H.264/AVC > DVB-S2 at IBC > Audio for HDTV > Update: DTT in Europe DVB-SCENE : 02 A word from the DVB Project Office Year’s End Peter MacAvock, Executive Director NEW Welcome to this final issue of DVB- timely availability of affordable set-top SCENE for 2004 - the end of the year boxes incorporating both DVB-S2 and sees the DVB General Assembly and H.264. With this in mind, the DVB MEMBERS the Project planning its forthcoming Project has just finalised its latest edition of the MPEG implementation Digitenne BV year, putting its finishing touches on the next phase of the Project - DVB guidelines incorporating H.264 and Electronic Frontier Foundation 3.0. As always, DVB needs to ensure High Efficiency AAC. Neotion that it retains its relevance in the 2004 will be seen as the year of the Sanio Mobile Silicon Ltd. world of digital television – this Italian DTT launch and the significant Zoran Corp becomes more and more challenging deployment of MHP set-top boxes DVB-SCENE : 03 as the body of DVB standards and there. Seen as an improbable recipe their users increases. for success at the outset, the first Published by the DVB Project Office, year has seen quite a successful c/o European Broadcasting Union, We have also seen significant 17a Ancienne Route, feedback from the DVB market - and one in which there will CH-1218 Grand Saconnex, Switzerland. demonstrations at IBC ’04. These saw be a limited legacy of non-interactive www.dvb.org & www.mhp.org the first live transmissions of DVB-S2, set-top boxes unlike, say, Germany. Editors: William Daly, Harold Bergin the first live decoding of H.264 at Time will tell how the specifics of the Editorial and Advertising enquiries to: WHD PR Italian model could be applied Email: [email protected] 720P50, the first live decoding of elsewhere. France is finalising its Telephone: +44 (0)20 7799 3100 SMPTE VC-1 coming from an MPEG transport stream and finally, the first launch and we could see movement in All rights reserved. No part of this publication may be Spain shortly, too. reproduced without prior consent of the publisher. All demonstrations of technologies likely content correct at time of printing. © DVB-SCENE to be included in the HDTV launches Finally, it remains for me to wish all 2004. DVB an MHP are registered trademarks of the planned for 2006 in Europe. Since IBC, DVB participants and DVB-SCENE DVB Project. Certain other product names, brand we have heard reports of the first readers the compliments of the names and company names may be trademarks or H.264 chips starting to become designations of their respective owners. season and good luck for 2005 from available. Naturally, an essential all of us on the DVB-SCENE editorial Printed by Lithmark Limited. Design by GyroGroup. element of HDTV launches will be the team. The views expressed in this newsletter are those of the individual DVB members or guests and are not necessarily the views of the DVB Project Office or Steering Board. Season’s Greetings from the Project Office. Wishing you the very best for 2005. Eoghan O’Sullivan, Désirée Noetzli, Santa Claus, Eva Melamed, Peter MacAvock The Next Phase DVB 3.0 Graham Mills, Chairman, DVB Commercial Module It is now eleven years since DVB to use; peer to peer technology will Management, including compliance was founded and its impact on the enable personal content to be created issues world of broadcasting and related and distributed in new ways that may c. Audio-visual coding guidelines markets and technologies has need to use DVB technology; for d. MHP support and possible probably met or exceeded the media content storage, content extensions of GEM into new expectations of its early members. management tools and techniques will businesses DVB-SCENE : 04 Earlier this year DVB’s Chairman, be needed that label items as we e. IPR issues Theo Peek, asked whether DVB had store them and help us search for f. Security. reached and end of its life as a multimedia data; and portable video 6. IP for contribution of DVB services. specifications setting body or players are now emerging where This is a challenging and exciting new whether there was a new phase of content is delivered or updated via remit for DVB and we look forward to work that needed to be done and fixed or mobile IP networks. More and continuing the DVB traditions, winning would be supported by its members. more examples will emerge of these broad industry support for innovative On 28th October the General kinds of requirements new specifications that meet a specific market need. Assembly decided more needed to be The vision for DVB, over the next phase done and unanimously approved a of its development, is to be an enabling strategy for a new phase of work for forum for pre-competitive standards DVB to be delivered over the next two setting in the ‘connected world’ of “...the impact of the Internet, mobile communications and digital broadcasting are having a powerful and direct impact on our lives...” or three years. We have decided to networked digital media and applications. build on the strengths and past The new phase of work, known as success of DVB to deliver a further DVB 3.0, will incorporate the following set of market led specifications and work items: guidelines to support the new 1. Convergence of broadcast and opportunities and requirements that mobile services (including systems are now emerging in the early part of like WiFi, WiMax, 2G, 3G). the 21st century. 2. Convergence of broadcast and The world around us is becoming a fixed IP network services (including ‘connected planet’. Networking and topics like DSL, QoS management, Graham Mills is a senior manager in access to content are becoming local storage). BT Retail. He and his team have led ubiquitous. In most developed nations, 3. Solutions to support service the development and launch of a the impact of the Internet, mobile interoperability across multiple number of new products, services, communications and digital networks and platforms (including acquisitions and joint ventures. broadcasting are having a powerful work on content coding, middleware, Chairman of the DVB Commercial and direct impact on our lives – both portable content format, in-home Module, he has made a substantial at work and at home. Some of the distribution). contribution to the DVB industry group thinking that will underpin our future 4. Completeness study on HDTV and since its formation in 1993, setting the work includes: current ways of possible amendments to our HDTV international specifications for digital binding content rights to devices toolbox. TV and interactive services. (smart cards, storage devices) will 5. Continuation of existing important Graham graduated from King’s College need to be replaced by mechanisms work items: Cambridge with an honours degree in that bind those rights to the individual, a. Broadcast technology engineering. He holds an MBA from regardless of which device they want b. Content Protection and Copy Cranfield School of Management. NEWNEW TTOOLBOOOLBOXX Ken McCann, ZetaCast Chairman of TM AHG on Audio Visual Content (TM-AVC) One of the earliest DVB specifications, applications such as HDTV. The the Implementation Guidelines for Video specification was published in May and Audio Coding in Broadcasting 2003 by ITU-T as Recommendation Applications based on the MPEG-2 H.264 and by ISO/IEC as 14496-10. Transport Stream, has recently been Three Profiles define subsets of the revised to add new options. Originally syntax and semantics: Baseline Profile, published in 1995 as DVB Blue Book Extended Profile and Main Profile. 001, the latest revision of TS 101 154 The Fidelity Range Extensions adds the option of H.264/AVC video as Amendment of H.264/AVC, agreed in an alternative to the original MPEG-2 July 2004, added some additional tools video. The range of codecs for audio and defined four new Profiles (of has also been extended to give a total which only the first is relevant for of four options: MPEG-1 Layer II, AC-3, broadcasting applications): High DTS and HE AAC. Profile, High 10 Profile, High 4:2:2 This revision marks a move towards a Profile and High 4:4:4 Profile. ‘toolbox’ approach to audio and video The relationship between High Profile DVB-SCENE : 05 coding. It recognises that we are now and the original three Profiles, in terms in a multi-codec world and that DVB of the major tools from the toolbox that applications require the flexibility to may be used, is illustrated by Figure 1. support for HDTV decoders which choose the most appropriate tool for For SDTV and HDTV, the most implement H.264/AVC. Only Main Profile the job. The disadvantage of this relevant profiles are Main Profile and support is required for H.264/AVC toolbox approach is that High Profile. Both of these allow the SDTV decoders, although High Profile interoperability becomes a more use of the most powerful variable can be used as an option. complex issue. If IPR costs could be length coding scheme: Context So have we now finished with ignored then there would be an Adaptive Binary Arithmetic Coding revising the Implementation Guidelines? argument for requiring all decoders to (CABAC). It has been estimated that Far from it! It is a living document that support the original MPEG-2 video and this gives about 10 to 15 percent will continue to evolve as the needs MPEG-1 Layer II audio as a saving in bit-rate compared to the of DVB members develop.
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