Organisation internationale de normalisation

Summary of discussions

4. Action Points

11. MP-AF (23000-15)

    1. Topics

       1. ISO/IEC 23000-15 Multimedia Preservation Application Format

The objective of the Multimedia Preservation Description Information (MPDI) framework is to provide a standardized description to multimedia content to enable users to plan, execute, and evaluate preservation operations to achieve the objectives of digital preservation.

2. Contributions

Number	Session	Title	Source	Dispositions
m36352	AF	Revised Text of MP-AF Implementation Guidelines	Roberto Borgotallo, Walter Allasia, Werner Bailer	Accepted N15494
m36354	AF	A C++ Class Library Implementing MPEG MP-AF	Hermann Fürntratt, Werner Bailer	Accepted N15494

3. Summary of discussions

4. Action Points

ISO/IEC DIS 23000-15 (SC 29 N 14861)

Part 15: Multimedia preservation application

DIS (2015-09-18)

12. Publish/Subscribe AF (23000-16)

    1. Topics

       1. ISO/IEC 23000-16 Publish/Subscribe Application Format

Publish/Subscribe (PubSub) is an established communication paradigm where senders do not communicate information directly to intended receivers but rely instead on a service that mediates the relationship between senders and receivers. While generic PubSub specifications exist, there are some specific features that are typical of a multimedia application that can be easily supported by a media-friendly PubSub format based on MPEG technology.

2. Contributions

Number	Session	Title	Source		Dispositions
m36664	AF	Summary of Voting on ISO/IEC CD 23000-16	SC 29 Secretariat	Refer N15495
m36242	AF	Proposed edits to Committee Draft of Multimedia Application Format (MPEG-A) — Part 16: Publish/Subscribe Application Format	Giuseppe Vavalà (CEDEO, Laurent Boch (RAI)	Accepted n15496

3. Summary of discussions

4. Action Points

ISO/IEC CD 23000-16 (SC 29 N 14869)

Part 16: Publish/Subscribe Application Format

CD (2015-06-15)

13. Media Linking AF (23000-17)

    1. Topics

       1. ISO/IEC 23000-17 Media Linking AF

2. Contributions

Number	Session	Title	Source		Dispositions
m36247	AF	A possible implementation of MLAF in MPEG-21 DIDL	Alberto MESSINA	Accepted N15579
m36418	AF	Presentation Layer for MLAF	Traian Lavric, Marius Preda	Accepted N15579

3. Summary of discussions

4. Action Points

14. Adaptive Screen Content Sharing AF (23000-18)

    1. Topics

       1. ISO/IEC 23000-18 Adaptive Screen Content Sharing Application Format

2. Contributions

Number	Session	Title	Source		Dispositions
m36619	AF	Contribution to WD of Adaptive Screen Content Sharing AF		Xin Wang	Accepted N15499

3. Summary of discussions

4. Action Points

15. Common encryption format for ISO BMFF (23001-7)

    1. Topics

       1. ISO/IEC 23001-7 3^rd Edition

This format defines a way to encrypt media (audio, video, etc.) in files of the ISO base media file format family. By using a common encryption format, a single media asset can be used by several services and devices using different digital rights management systems, and the implementation complexity that would be consequent on having duplicate files and formats for the same content can be reduced or eliminated.

2. Contributions

Number	Session	Title	Source	Disposition
m36193	File Format	Summary of Voting on ISO/IEC DIS 23001-7 [3rd Edition]	SC 29 Secretariat	Refer N15550

3. Summary of discussions

4. Action Points / Ballots

16. CICP (23001-8)

    1. Topics

2. Contributions

Number	Session	Title	Source	Disposition
m36217		Table of Replies on ISO/IEC 23001-8:2013/FDAM 1	ITTF via SC 29 Secretariat	noted

3. Summary of discussions

4. Action Points

17. Common encryption format for MPEG-2 TS (23001-9)

    1. Topics

       1. ISO/IEC 23001-9 AMD 1 Support of Sparse Encryption

The 'cbc2' mode in ISO/IEC 23001-7:201X / AMD1 proposes sparse encryption, where every 16 bytes out of 160 bytes of bitstream are encrypted. Carriage of such a mode in MPEG-2 transport will result in very significant overhead, as two TS packets would be needed to carry 160 bytes of bitstream. This amendment provides a framework that significantly reduces the overhead of such encryption mode while remaining backwards compliant with the existing MPEG-2 TS conditional access framework.

2. Contributions

Number	Session	Title	Source	Disposition
m36554	MPEG-2	Improvements to ISO/IEC 23001-9		Accepted N15502

3. Summary of discussions

1. m 36554 from Interdigital.

• 
  This proposes changes to the syntax in encryption part related to start code emulation prevention and size of ECM in ISO/IEC 23001-9 / DAM 1.
  
• 
  Agreed to produce study text of ISO/IEC 23001-9 / DAM 1. In addition a byte alignment error in ECM table has been identifies and we plan to issue a draft corrigendum to ISO/IEC 23001-9 at this meeting.
  

4. Action Points

ISO/IEC 23001-9:2014/DAM 1 (SC 29 N 14921)

Part 9: Common Encryption for MPEG-2 Transport Streams, AMENDMENT 1: Support of Sparse Encryption

DAM (2015-09-16)

18. Timed metadata metrics of Media in ISOBMFF (23001-10)

    1. Topics

       1. ISO/IEC 23001-10 Timed Metadata Metrics of Media in the ISO Base Media File Format

Specifies a storage format for commonly used, timed metadata metrics of media, such as quality related PSNR, SSIM, and others, for carriage in metadata tracks of the ISO Base Media File Format.

2. Contributions

Number	Session	Title	Source	Disposition
m36457	File Format	On WD of Carriage of ROI coordinates	Emmanuel Thomas	Accepted N15505
m36613	File Format	On Carriage of ROI Information	Ozgur Oyman	Accepted N15505

3.