Custom query (96 matches)
Results (10 - 12 of 96)
Ticket | Resolution | Summary | Owner | Reporter |
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#75 | fixed | Discrepancy in VSP bi-pred handling | tech | Tomohiro Ikai |
Description |
There seems to be a discrepancy between spec and software. The spec reads that bipred prevention is applied regardless of VSP flag:
refIdxL1 = −1 (I 112) predFlagL1 = 0 (I 113) However, the software (in TDecEntropy.cpp and TEncSearch.cpp)disbles it in the case VSP flag is true as follows. #if H_3D_VSP
->getVSPFlag(uiSubPartIdx) == 0)) #else
#endif We should remove it (spec should be right). In CTC and IBP(with MTK_I0072_IVARP_SCALING_FIX) experiment, there are no differences by this fix. No change is quite natural because VSP PU cannot be bi-prediction in the current specification. If looking at predFlagLXVSP setting logic(See I.8.5.3.2.13 Derivation process for a view synthesis prediction merge candidate), when predFlagL0VSP is 1, predFlagL1VSP cannot be 1. When predFlagL0VSP is 0, the PU is not bi-prediction. The same logic is applied in VSP inhericance case. Lastly, even if VSP was able to be bi-prediction, we should prevent 8x4/4x8 bipred in VSP as well to preserve motion data storing implemenation. |
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#76 | fixed | Unused functions | tech | Tomohiro Ikai |
Description |
The following functions are not used. We should remove them. xCodeSDCResidualData [TEncSbac] xParseSDCResidualData [TDecSbac] xInheritVSPDisInfo [TComDataCU] If someone knows other unused functions, it is very appreciated. |
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#79 | fixed | Unused VSP code | tech | Tomohiro Ikai |
Description |
The class of InheritedVSPDisInfo and related codes are (virtually) not used. They looks used but not affect for the results. A patch is attached. |