Organisation internationale de normalisation

Support of interlaced coding tools: Bugs related to interlaced coding tools need to be fixed.

Support of multiple slice groups: Bugs related to multiple slice groups need to be fixed (the bugs already existed in last version of the JSVM software).

The following tools were reported to need to be implemented or fixed in order to align the software to the text (JVT-X201):

• 
  fixing implementation of multiple slice groups (and IROI)
  
• 
  fixing implementation of interlaced tools
  
• 
  implementation of new loop filter modes (two filter passes, JVT-W063r1)
  
• 
  correction of position calculation for inter-layer prediction of coding modes and motion vectors
  
• 
  double check SEI syntax
  
• 
  order of redundant pictures in bitstream
  
• 
  re-implementing temporal direct mode (low priority – not required for SVC bit streams)
  
• 
  re-implementing error concealment and detection (lower priority – long term issue)
  
• 
  base layer rate control (JVT-W043, non-normative)
  

Additional fixes of which the software coordinators are currently not aware reportedly might also be required to align the JSVM software to the text.

In order to keep track of the changes in software development and to always provide an up-to-date version of the JSVM software, a CVS server for the JSVM software has been set up at the Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen. The CVS server can be accessed using WinCVS or any other CVS client. The server is configured to allow read access only using the parameters specified below. Write access to the JSVM software server is restricted to the JSVM software coordinators group.

• 
  authentication: pserver
  
• 
  host address: garcon.ient.rwth-aachen.de
  
• 
  path: /cvs/jvt
  
• 
  user name: jvtuser
  
• 
  password: jvt.Amd.2
  
• 
  module name: jsvm or jsvm_red
  

The following example shows how the JSVM software can be accessed by using a command line CVS client.

cvs –d :pserver:jvtuser:[e-mail]:/cvs/jvt login

cvs –d :pserver:[e-mail]:/cvs/jvt checkout jsvm

In the following example, it is shown how a specific JSVM software version – specified by a tag (JSVM_9_8 in the last example above) – can be obtained using a command line CVS client. Note that "co" represents an abbreviation for the command checkout, which was used in the example above.

cvs –d :pserver:jvtuser:[e-mail]:/cvs/jvt login

cvs –d :pserver:[e-mail]:/cvs/jvt co –r JSVM_9_8 jsvm
It is also possible to check out only a reduced JSVM software package by using the module name jsvm_red instead of jsvm. In this case, the directories JSVM0-config-sample and MVC-Configs are ommitted in the checkout, as shown below.

cvs –d :pserver:jvtuser:[e-mail]:/cvs/jvt login

cvs –d :pserver:[e-mail]:/cvs/jvt co jsvm_red
The CVS repository includes a JSVM software manual, which provides further information on the JSVM software.
The text of the conformance test specification document "Draft conformance testing for SVC" had been submitted as JVT-Y205.
A first SVC related errata list had been submitted as JVT-Z043.
The editors and software coordinators were thanked for their excellent and diligent work.

2.5.1.1.5JVT-Z004 (Admin) [A. Segall, T. Wiegand] AHG Report: SVC bit depth and chroma format

The AhG was established at the Shenzhen meeting to study bit-depth and chroma format scalability. The mandates of the AhG were:

• 
  Identify applications
  
• 
  Work out suggestions for detailed needs
  
• 
  Find/create test material
  
• 
  Study bit-depth reduction techniques, e.g., tone-mapping tools
  
• 
  Study color space and/or gamma conversion requirements
  
• 
  Study combined spatial and bit depth scalability
  
• 
  Define experiments and test conditions
  
• 
  Investigate software and text modification needs
  
• 
  Identify complexity issues
  

The AhG sent a kick-off message to the JVT main reflector ([e-mail]) on December 7, 2007. The message contained [BDS] in the subject line.