Joint Collaborative Team on Video Coding (jct-vc) of itu-t sg16 wp3 and iso/iec jtc1/SC29/WG11

1.11Liaison activity

The JCT-VC did not send or receive formal liaison communications at this meeting.

1.12Opening remarks

Opening remarks included:

• 
  Remarks on lateness of documents.
  
• 
  Remarks on the number of documents.
  

Primary topic areas were noted as follows:

• 
  HLS
  
• 
  SHVC
  
• 
  RExt
  
• 
  Corrigenda items, preparation of new edition (how to progress RExt to final approval ballot in ISO/IEC)
  
• 
  Screen content coding CfP results
  

Other

• 
  Verification test
  

Unfinished (or less-than-optimally finished) deliverables

• 
  HEVC conformance (& Draft DoCR)
  
• 
  RExt draft finalization
  
• 
  HM test model text
  

Two main tracks were followed for most meeting discussions:

• 
  HLS
  
• 
  RExt & SCC
  

1.13Scheduling of discussions

Scheduling: Generally meeting time was scheduled during 0800 – 2000, with coffee and lunch breaks as convenient. The meeting had been announced to start with AHG reports and continue with parallel review on SHVC HLS, SHVC and RExt CE work and related contributions during the first few days. Ongoing refinements were announced on the group email reflector as needed.

Some particular scheduling notes are shown below, although not necessarily 100% accurate:

• 
  Thu. 27 Mar., 1st day 0900–2000
  
  • 
    JCT-VC opening and review of AHG reports [JRO & GJS] 0900–1315 (MP1)
    
  • 
    SCC CfP response presentations of technical proposals [JRO] 1445–2000 (MP1)
    
  • 
    HLS BoG [J. Boyce] 1445–2000 (Aud. 3B)
    
• 
  Fri. 28 Mar., 2nd day 0800–1900
  
  • 
    RExt [JRO] 0800–1300, 1630–1900 (MP1)
    
  • 
    HLS BoG [J. Boyce] 0900–1300, 1430–1900 (3B), esp.:
    
    • 
      7.5.2 IRAP alignment and POC derivation
      
    • 
      7.5.3 RPS signalling and derivation
      
    • 
      7.5.5 Parameter sets
      
  • 
    SCC CfP Summarization BoG [H. Yu. R. Cohen, R. Joshi] 0800–1300 (3A)
    
  • 
    SCC CfP results review [JRO] 1430–1600 (MP1)
    
  • 
    SCE1 and related non-CE SHVC contributions [GJS] 1430–1900 (3A)
    
• 
  Sat. 29 Mar., 3rd day 0800–2000
  
  • 
    Parallel activity: JCT-3V first day 0900–2000 (3A+B)
    
  • 
    Non-CfP SCC or RExt [R. Cohen] 0830–1330, 1500–1730 (MP1)
    
  • 
    HLS [Y.-K. Wang] 0900–1330, 1500–1630 (S2)
    
  • 
    SHVC position calculation [J. Boyce] 0800–1330 (S1)
    
  • 
    JCT-VC review of Non-CfP SCC / RExt and SHVC position calculation [GJS] 1600–2000 (MP1)
    
• 
  Sun. 30 Mar., 4th day 0900–2000 [Summer time change noted]
  
  • 
    JCT-VC review of SHVC position calculation and HLS [GJS] 0900–1200 (Aud. 2)
    
  • 
    JCT-VC remainders [GJS] 1200–1400, 1330–1800
    
  • 
    RExt BoG [D. Flynn & C. Rosewarne] 1830–2000
    
  • 
    HLS BoG [J. Boyce] 1830–2000
    
• 
  Mon. 31 Mar., 5th day 1430–2100
  
  • 
    Parent level: WG 11 plenary 0900–1400
    
  • 
    Parent level: VCEG plenary 1400–1600
    
  • 
    Parent level: Joint meeting 1600–1800 (SCC &c)
    
  • 
    JCT-VC HLS 1815–2100 (GJS) (3B)
    
  • 
    JCT-VC RExt 1815–2100 (JRO) (Aud. 2)
    
• 
  Tue. 1 Apr., 6th day 0800–2100
  
  • 
    JCT-VC RExt and next steps for SCC (GJS & JRO) 0800–1000+ (Aud. 2)
    
  • 
    SHVC position calculation [J. Boyce] 0800–1000 (Room A)
    
  • 
    HLS [J. Boyce] 0900–1100 (Room A)
    
  • 
    SCM [R. Cohen] (Aud. 2)
    
  • 
    RExt editorial review [GJS] 1000 (Foyer Aud. 2B)
    
  • 
    RExt colour VUI [GJS] 1200 (Foyer Aud. 2B)
    
  • 
    Parent level: Joint meeting 1600–1800 (various topics)
    
  • 
    RExt editorial review [DF] 1800–2100 (3A)
    
• 
  Wed. 2 Apr., 7th day 1130–2100
  
  • 
    Parent level: WG 11 plenary 0900–1100
    
  • 
    JCT-VC review of side activity, RExt profiling details 1130−1300 (Aud. 2)
    
  • 
    Parent level: VCEG plenary 1300–1400 (Aud. 2)
    
  • 
    SCC 1500−1700 BoG (Room 3A)
    
  • 
    HLS 1500−1800 (Aud. 2)
    
  • 
    JCT-VC remainders 1800-2100 (Aud. 2)
    
    • 
      SHVC CGS phase 2.1 vs. 2.2 [2.2 simpler?, 2.1 has 0.6% gain]
      Decision: 2.1, with se(v) coding.
      
    • 
      HEVC v1 Conformance Q0219
      
    • 
      SHVC conformance (To be part of conformance AHG – volunteers: J. Boyce, Y. Ye, T. Suzuki, A. Ramasubramonian) & ref soft
      
    • 
      Verification test follow-up (Q0019, Q0204 to be the basis of output doc)
      
    • 
      RExt conformance Q0249
      
    • 
      RExt coding features Q0051
      
  • 
    RExt finalization and editorial review BoG 1900−2100
    
  • 
    Parent level: ISO/IEC editor guidance 1700–1800 (Room 5)
    
• 
  Thu. 3 Apr., 8th day 0800–2100
  
  • 
    Parent level: Joint meeting 1500–1700 (various topics)
    
  • 
    BoG position & phase adj SHVC Room A 8am
    
  • 
    BoG HLS Room A 1000
    
  • 
    BoG SCC Room 3A 8am-1000
    
  • 
    JCT-VC & JCT-3V joint HLS review 1700-1800 Aud. 2
    
  • 
    JCT-VC Remainders 0800-1500 Aud. 2
    
    • 
      0800 Misc
      
    • 
      1000 Still picture
      
    • 
      1030 SCC Review
      
    • 
      AHG plans
      
    • 
      RExt DoCR (IT NB: FPA) – see joint meeting notes.
      
    • 
      Rectangular region FPA
      
    • 
      1700 HLS BoG and revisits review Q0223
      
    • 
      Shared DPB further discussion
      
    • 
      1900 SHVC position & phase adjustment BoG review
      
    • 
      CE planning (SCC, CGS WP?, 12 b SHVC?)
      
    • 
      Output doc planning
      
    • 
      Notes on some discussions completed [Ed. cleanup here]
      
      • 
        (GJS a.m.) In RExt, CABAC initialization and CBF have been identified by the editors as areas of potential deficiencies in the text.
        Decision: Generally speaking, discrepancies should be resolved in these aspects by studying the software in case of doubt]
        
      • 
        Version 1 defects MinCR ([confirmed Wed p.m. (GJS))], Q0111
        
      • 
        SCC Project desc.
        
      • 
        Profiles – see joint meeting notes.
        
        • 
          CPB size effect for all-intra profiles
          
        • 
          Bit rates for high-throughput profile
          
        • 
          12 bit profile Q0206
          
• 
  Fri. 4 Apr., 9th day 0800–1230
  
  • 
    Parent level: WG 11 plenary 1400–2200
    
  • 
    JCT-VC closing plenary 0800–1230
    
    • 
      AHG plans
      
    • 
      Output docs
      
    • 
      WG11 DoCRs, NBs, resolutions
      
    • 
      CE plans
      
    • 
      Q0256 check