Organisation internationale de normalisation

5.2Output documents related to MPEG-7 Visual

No.	Title	TBP	Available
	15938-3 Visual
10153	Disposition of Comments on ISO/IEC 15938-3:2001/FPDAM 3	N	08/10/17
10154	Text of ISO/IEC 15938-3:2001/FDAM 3 Image Signature Tools	N	08/10/31
10155	Updated Call for Proposals on Video Signature Tools	Y	08/10/17
10156	Request for ISO/IEC 15938-6:2003/Amd.3	N	08/10/17
10157	Text of ISO/IEC 15938-6:2003/PDAM 3 Reference Software for Image Signature Tools	N	09/01/11
10158	Request for ISO/IEC 15938-7:2003/Amd.5	N	08/10/17
10159	Text of ISO/IEC 15938-7:2003/PDAM 5 Conformance Testing for Image Signature Tools	N	09/01/11
10160	Request for ISO/IEC 15938-8:2002/Amd.5	N	08/10/17
10161	Text of ISO/IEC 15938-8:2002/PDAM 5 Extraction and Matching of Image Signature Tools	N	09/01/11
	23000-3 Photo Player Application Format
10162	Disposition of Comments on ISO/IEC 23000-3/FPDAM1 Reference Software for Photo Player MAF	N	08/10/17
10163	Text of ISO/IEC 23000-3/FDAM1 Reference Software for Photo Player MAF	N	08/10/17
10164	Working Draft 2 of ISO/IEC 23000-3/Amd.2 Conformance Testing for Photo Player MAF	N	08/10/17

623002 MPEG-C Video Technologies

6.123001-4 and 23002-4 Reconfigurable Video Coding (RVC)

6.1.1General status of work

The two parts related to RVC (ISO/IEC 23001-4 Codec Configuration Representation in MPEG-B and ISO/IEC FCD 23002-4 Video Tool Library in MPEG-C) were progressed into FCD status in April with editorial period, and delivered in time for the ballots, which was closing before the October meeting (where it was originally planned to promote both parts for FDIS). Unfortunately, the Study documents that were started during the Hannover meeting were not delivered in time before the ballots closed. This was partially caused due to data losses of the editing work from Hannover shortly after the meeting, and due to difficulties to find sufficiently qualified MPEG-2 experts for reviewing the tool descriptions.

While excellent progress was made in implementing RVC and proving comcepts (in particular for AVC baseline profile, which is now operational with CAVLC), two issues popped up from the input documents that were brought for Busan:

• 
  For the more advanced entropy coding schemes (namely CAVLC and CABAC), a more elegant solution (compared to the envisioned implementation by dedicated FUs) seems to be the usage of the BSD Java interface. This will be further implemented an checked until the next meeting;
  
• 
  It has now become common understanding of all RVC experts that the CAL reference implementation of FUs must be made normative, and this is the only means (unlike the textual description) to uniquely describe FU behaviour in terms of timing and dataflow. Therefore, one more round of careful checking is needed, also to resolve some known divergences between the textual description and the CAL reference.
  

As a consequence of the situation described above, as well as the deficiencies in editorial maturity, which were criticized by NBs in the ballot votes, it was decided to delay the FDIS of both 23001-4 and 23002-4 by one meeting. At the same time, Amd.1 (software and conformance) will be speeded up, most likely with PDAM for 09/02 (WD 3 currently).
Regarding the view of normative elements and their conformance testing, the following statements were discussed as being the cuurent view:

• 
  Current/first version of RVC only supports 100% MPEG pieces; if non-MPEG toolboxes are written by same formalism as MPEG, it will most probably also work, but at own risk.
  
• 
  If not 100% MPEG, conformance is only provided for the level of decoder description decoding (primitive parsing check) and for input/output of used MPEG FUs. For MPEG, conformance testing for complete solutions will be provided.
  
• 
  In the future, extensions may be considered that provide e.g. Java interfaces at the abstract decoder model that could support plugging in C++ libraries
  

While the first edition will give full support for MPEG-2 main profile, MPEG-4 simple profile and MPEG-4 AVC baseline profile, further tools for MPEG-4 advanced simple profile, AVC high profile and SVC will be supported in Amd.2, for which the third version of WD was issued.