Of itu-t sg16 wp3 and iso/iec jtc1/SC29/WG11

JCTVC-O0214 On parameter sets [A. K. Ramasubramonian, Y.-K. Wang, Y. Chen, V. Seregin (Qualcomm), S. Deshpande (Sharp)]

First discussed in BoG O0349.

Further discussed Wed 23rd evening (GJS).

This document provides an analysis of VPS size, discusses a few parameter set related issues, and proposes solutions for the issues. These issues include: 1) repetition of parameter sets within one AU, 2) parallel extensions for SPS, 3) scaling matrix prediction, 4) bitstream conformance restrictions on parameter sets that are never activated, 5) repetition of same SPS VUI in SPSs, and 6) signaling of MV-HEVC SPS extension syntax elements.

Item 2 above relates to this agenda topic. The other aspects relate to generic parameter set issues for SHVC and 3D extensions.

Has flags somewhat similar to those proposed in O0142, but:

• 
  Only has flags for the currently defined extensions (range extensions and SHVC).
  
• 
  Within each extension structure is another nested flag for extending (but the syntax mechanism appears to be broken if this is used, since it cannot be chained with something else that follows).