JVET-AD0239 Non-EE2: Fixes for IntraTMP template availability [G. Verba, Z. Zhang, V. Seregin, M. Karczewicz (Qualcomm)]

In ECM-8.0, it is asserted that IntraTMP has problems in checking availability for the left template of the current block and for the reference block templates located at picture boundaries. Those two problems are fixed in the contribution and test results on top of ECM-8.0 are summarized as follows:

AI(Y/U/V): 0.00%/-0.04%/0.05%, EncT 99%, DecT 100%

RA(Y/U/V): -0.xx%/-0.xx%/-0.xx%, EncT 1xx%, DecT 1xx%

Test results on top of EE2-1.20j are summarized as follows:

AI(Y/U/V): -0.02%/-0.05%/-0.06%, EncT 99%, DecT 100%

RA(Y/U/V): -0.xx%/-0.xx%/-0.xx%, EncT 1xx%, DecT 1xx%

For the first aspect (checking availability for the left template), see notes under JVET-AD0124.

For the second aspect (L-shaped availability check also in case of left-only or above-only templates) it should be clarified with original proponents if it was intended. K. Naser was asked to report – see JVET-AD0387 which confirms the approprioateness of the proposed modification.

Decision (BF/SW/original intent): Adopt JVET-AD0239