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

5.9.2.2SAO left band

Recommendation of BoG: Move left band position after SAO magnitudes and signs (as suggested in J0046, J0054, J0148 and partially in J0268)

Decision: Adopt J0046 and J0054 (both are identical)

JCTVC-J0046 AHG6: On left band position coding in SAO [E. Alshina, A. Alshin, J.H. Park, (Samsung)]

JCTVC-J0054 AhG6: Bypass bins grouping in SAO [J. Sole, I.S. Chong, M. Karczewicz (Qualcomm)]

JCTVC-J0392 AHG6: Crosscheck of SAO bypass bins grouping in SAO in JCTVC-J0054 [C.-M. Fu, Y.-W. Huang (MediaTek)] [late]

5.9.2.3SAO performance

Recommendation of BoG: (1) Test combination J0044 with J0139 (encode bug fixes) and measure performance improvement from another contributions in this category compare to this encoder only modifications. (2) set visual test for J0213.

JCTVC-J0179 On sao_merge_left_flag for effective Mx1 CTB coding [T. Ikai, T. Yamamoto, Y. Tasugi (Sharp)]

Groups several LCUs to use the same SAO parameters set. This is equivalent to forcing merge left flag to be true for several LCUs. The number of samples in a group is constant = 64x64x2=32x32x8.

Increases the latency and buffer in encoder side. This is contradictory with low latency LCU based SAO philosophy. It was requested to modify encoder to have 1 LCU latency and provide additional results.

The BoG requested test data for fast encoder version.

It is verbally reported that no gain can be realised in case of low-latency encoder.

No action.