International organisation for standardisation

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INTERNATIONAL ORGANISATION FOR STANDARDISATION

ORGANISATION INTERNATIONALE DE NORMALISATION

ISO/IEC JTC 1/SC 29/WG 11

CODING OF MOVING PICTURES AND AUDIO
ISO/IEC JTC 1/SC 29/WG 11 N2251

July 1998


Source:

Leonardo Chiariglione – Convenor

Title:

Report of the 44th WG 11 meeting

Status:






1 Opening


The 44th WG11 meeting was held at the Dublin Castle Conference Centre, Dublin, IE, at the kind invitation of National Standards Authority of Ireland and hosted by Teltec Ireland and Radio Telefís Éireann on 98/07/06-10. Mr. Noel Treacy, T.D., Minister for Science, Technology and Commerce and Dr. Ian Cowan, NSAI welcomed the participants.

2 Roll call of participants


This was not made for reasons of time

3 Approval of agenda


This appears as Annex 1

4 Allocation of contributions


This appears as Annex 2

5 Communications from Convenor


The Convenor reported to the group that he had informed the ISO Central Secretariat of the AAC patents problems, as requested by the Tokyo meeting Resolution 2.5.2. At the end of the week representatives of the companies owning AAC-related IPR informed the meeting that an agreement had finally been reached entrusting Dolby as the single licensing point for ACC patents.

6 Report of previous meetings 1978


The reports of the San Jose and Tokyo meetings were approved.

7 Processing of NB Position Papers


Papers were received from the National Bodies of ES, JP, KR, PT, SE, SG and US. Responses were drafted and approved.

8 MPEG Phase 2

8.1 MPEG-2 parts


No specific work was done. It was considered useful to revise ISO/IEC 13818-1:1996 and ISO/IEC 13818-2:1996 including all the Amendments and Corrigenda after Amendment 6 to ISO/IEC 13818-1:1996 reaches the publication stage.

8.2 Verification of MPEG-2


No specific results were made known.

8.3 Amendments

8.3.1 Systems


WG 11 N2268 contains revised proposed modification to ISO/IEC 13818-1.

WG 11 N2267 is the text of ISO/IEC 13818-1/PDAM6.



8.3.2 Video


WG 11 N2255 is the Disposition of Comments Report and WG 11 N2256 is the text of FPDAM5 for ISO/IEC13818 2/PDAM5.

8.3.3 Audio


Work on MPEG-2 AAC dynamic range control continued

8.3.4 DSM-CC


Part 10 being under ballot a "Study on MPEG-2 DSM-CC Conformance 13818-10 FCD" was produced. Further the following document was approved:

  • Text of ISO/IEC 13818-6/FPDAM1 (WG 11 N2264)



8.3.5 Conformance


The following documents were approved:

  • Disposition of Comments Report for ISO/IEC 13818 4/FPDAM1 (WG 11 N2257) and the text of FDAM1 (WG 11 N2258).

  • Proposed modification to ISO/IEC 13818-4 as specified in WG 11 N2259.

  • Text of ISO/IEC 13818-4/PDAM2 (WG 11 N2263).



8.3.6 Technical Report


The following documents were approved:

  • Disposition of Comments Report for ISO/IEC TR 13818 5/DAM1 (WG 11 N2261) and the text of AMD1 (WG 11 N2262)



8.4 Corrigenda

8.4.1 Conformance


The following corrigenda were approved

  • Text of ISO/IEC 13818-4/COR2 (WG 11 N2260).

  • Disposition of Comments Report for ISO/IEC  13818 7/DCOR1 (WG 11 N2265) and the text of COR1 (WG 11 N2266)



8.5 Workplan


This was approved

9 MPEG Phase 4

9.1 Version 1

9.1.1 Patent statements


A report of the situation of statements received was made. Members who had not submitted a statement were encouraged to do so.

9.1.2 Final Committee Draft

9.1.2.1 System


Further studies of the Systems FCD were made

9.1.2.2 Visual


Further studies of the Visual FCD were made

9.1.2.3 Audio


Further studies of the Audio FCD were made

9.1.2.4 Reference software


Further studies of the Reference software FCD were made

9.1.2.5 DMIF


Further studies of the DMIF FCD were made

9.1.3 Verification Tests

9.1.3.1 Systems


Work was done on MPEG-4 Audio/Systems issues

9.1.3.2 Video


Work was done on

MPEG-4 video encoder optimization and MPEG-4 video verification tests


9.1.3.3 Audio


Work was done on MPEG-4 Audio NADIB verification tests and MPEG-4 Audio Verification tests

9.1.4 Quality of service


Work was done on video decoder Quality of Service

9.1.5 Conformance Testing


A new WD was approved.

9.1.5.1 System


An editor was appointed

9.1.5.2 Visual


Three editors were appointed

9.1.5.3 Audio


An editor was appointed

9.1.5.4 DMIF


An editor was appointed

9.2 Version 2

9.2.1 Requirements


MPEG-4 version 2 requirements were continued.

9.2.2 Tools

9.2.2.1 DMIF


Work on use of DMIF ver. 2 for Mobile Network Connections was continued

9.2.2.2 Systems


Substantial work was accomplished for Advanced BIFS, MPEG-J Specification and Implementation, M4 File Format and Intellectual Property Management & Protection. The maturity of the last item prompted the group to consider introduction of the technology to ver. 1 if National Body will so support.

9.2.2.3 Natural Visual


This part of the work received reduced priority because of the need to clarify all items for ver. 1.

9.2.2.4 Synthetic Visual


Substantial progress was made on Computational Graceful Degradation, Body Animation, and Face and Body Animation

9.2.2.5 Natural Audio


This part of the work received reduced priority because of the need to clarify all items for ver. 1.

9.2.2.6 Synthetic Audio


Most of this work falls under Advanced BIFS

9.2.3 Verification Models

9.2.3.1 System


Work was continued

9.2.3.2 Video


Work was continued

9.2.3.3 Audio


Work was continued

9.2.3.4 SNHC


Work was continued

9.2.4 Working Drafts

9.2.4.1 Systems


WD of all new technologies were produced

9.2.4.2 Video


A new WD was produced

9.2.4.3 Audio


A new WD was produced

9.2.4.4 Simulation software


Work to collect ver. 2 sofware has barely started

9.2.4.5 DMIF


A new WD was produced



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