International organisation for standardisation organisation internationale de normalisation

Summary of discussion

1. m31337 Table of Replies on ISO/IEC 14496-12:2012/FDAM 1

editors to handle editorial comment from German NB.

2. m31432

Two types of event that happen on the media time line

• 
  cue-range : inform when the device enter/leave certain time range
  
• 
  event marker : inform when the device hit specific time.
  

It seems that cue-range is generally better than event market. It’s unclear what the terminal needs to do when playback is stopped, for example, and the user (or system) seeks to a time close to, but not at, a marked time. This might be basic but important architectural design principal to be studied and correctly implemented in various MPEG standards. Review and inputs are welcomed.

3. m31448

To investigate the required tools at the systems level to allow a media presentation packaged and delivered in one format over one network type to be “augmented” by another media presentation, possibly using different packaging and/or delivery means. Agreed to further study this issue over general reflector to develop a general solution.

Standard	NPT	NTP timestamp (not necessarily wall-clock or UTC)	TCS / TCL
ISOBMFF	Yes (MediaTime)	No	No (Could be added in a meta-data track)
MPEG-2 TS TEMI WD (w13661)	Yes	Yes	Yes
MPEG-DASH	Yes (Media Presentation Timeline of active period)	No	No (Could be added in a meta-data track)
RTP+RTCP	No	Yes	Yes with RFC5484
RTP+RTCP+RTSP	Yes	Yes	Yes with RFC5484

4. Demo

5. FAQ

.

6. AOB

None.

2. MPEG-2 Systems (13818-1)

   1. Topics

      1. ISO/IEC 13818-1:201x AMD 5 Transport of MVC depth video sub-bitstream and extensions to support HEVC low delay coding mode

This amendment to MPEG-2 systems specifies 3 functions:

1. 
   It extends the MVC_extension_descriptor to explicitly signal the association between the 2 views of ‘stereoscopic MVC video’ with left or right eye for display on 3DTV devices. This explicit signaling was not available in earlier versions of MVC video standard or transport of MVC in MPEG-2 systems.
   
2. 
   A ‘transport profile descriptor’ is defined to signal ‘adaptive profile’ such as one used by the DASH specification. The descriptor also defines the ‘complete profile’ which is the current default transport profile. The descriptor is used at a program level to indicate that the program contains a transport stream that may have constraints associated with adaptive streaming applications so that re-purposing systems can properly manage the re-multiplexing of this transport stream.
   

A new annex T that defines the ‘Mime types’ which are registered and commonly used for various MPEG defined elements has also been added.

2. ISO/IEC 13818-1:201x AMD 6 Delivery of Timeline for External Data

This amendment defines tools to identify and synchronize external data associated with an MPEG program in MPEG-2 transport streams. The tools allow:

- alignment of media timelines regardless of PCR discontinuities through a variety of possible time codes,

- signaling of URLs of associated data and their types (mime types, ISOBMFF, MPEG-DASH, MMT),

- announcement of upcoming associated data

2. Contributions

Number	Session	Title	Source		Dispositions
m31430	MPEG-2	Carriage of HEVC extension streams with MPEG-2 Systems	Y. Chen, Hendry, Y.-K. Wang(Qualcomm),	Noted
m31446	MPEG-2	Input on WD2 of 13818-1 AMD8	Jean Le Feuvre, Patrick Gendron, Anne-Laure Mevel, Jean-François Travers, Pascal Dupain, Mickael Raulet, on behalf of the H2B2VS Project	Accepted N13951
m31587	MPEG-2	Defect report on JPEG2000 in MPEG-2 systems	Gary J. Sullivan	Noted
m31713		Further Inputs on WD2 of 13818-1 AMD8	Jean Le Feuvre, Alex Giladi, Patrick Gendron	Noted

3.