The Joint Collaborative Team on Video Coding (jct-vc) of itu-t wp3/16 and iso/iec jtc 1/ sc 29/ wg 11 held its tenth meeting during 11-20 July 2012 at the City Conference Centre (ccc), a k. a

JCTVC-J0438 AHG10: Cross-check of JCTVC-J0196 [J. Xu (Microsoft)] [late]
JCTVC-J0257 AHG9/AHG10: Design of the Video Parameter Set [R. Skupin, V. George, T. Schierl]
JCTVC-J0484 AHG9/AHG10: Mental cross-check of JCTVC-J0257: Design of the Video Parameter Set [J. Boyce (Vidyo)] [late]
JCTVC-J0261 AHG9: Signalling of VPS Activation [T. C. Thang (UoA), J. W. Kang, H. Lee, J. Lee, J. S. Choi (ETRI)]
JCTVC-J0481 Mental crosscheck for JCTVC-J0261 Signaling of VPS Activation [Hendry, B. Jeon (LG)] [late]
JCTVC-J0270 HEVC VUI Parameters with Extension Hooks [Munsi Haque, Kazushi Sato, Ali Tabatabai, Teruhiko Suzuki (Sony)]

See BoG report notes J0550 and modified proposal J0548.

JCTVC-J0528 Mental cross-check of JCTVC-J0270: HEVC VUI Parameters with Extension Hooks [J. Boyce (Vidyo)] [late]
JCTVC-J0487 Scalable Video Coding Signalling in VPS [A. Luthra (Motorola Mobility)] [late]
JCTVC-J0546 AHG9/10: vps_id in slice header (partial re-proposal of JCTVC-I0524) [M. M. Hannuksela (Nokia)] [late]
JCTVC-J0562 HRD parameters in VPS [Y.-K. Wang (Qualcomm), M. M. Hannuksela (Nokia)] [late]

The contribution proposes moving HRD parameters from SPS to VPS, and text for the HRD (HEVC Annex C) specifying which HRD parameters are used for conformance checking.

A problem was identified in JCTVC-J0074 that when the conformance of a bitstream containing scalable layers is checked using HEVC v1 standard or an HEVC v1 decoder decodes a bitstream containing scalable layers, the HRD parameters of the “highest” layer present in the bitstream should be used. However, HEVC draft 7 lacks the signalling of HRD parameters of higher layers. In other words, there is no clear HRD operation specified when bitstreams with enhancement layers are fed to a decoder conforming to the base specification.

Discussed Tues 1620.

Decision: Adopted with modifications/clarifications as follows:

• 
  Adding the subset-based HRD syntax to the VPS while not removing the ability to send the HRD parameters in the SPS
  
• 
  It should be allowed for the HRD parameters to be in the VPS and not in the SPS (since it is already specified that HRD parameters can be sent by external means and they are already optional within the syntax of the SPS).
  
• 
  It was asked whether the HRD parameters in the SPS of the base layer should include all NALUs in the bitstream or not. It was agreed that it does.
  
• 
  The proposed new ability to send HRD parameters specific to an extracted subset of the bitstream would be sent only in the VPS.
  

JCTVC-J0576 VPS syntax for scalable and 3D extensions [J. Boyce (Vidyo)] [late]