PredMode(sub_mb_type[mbPartIdx]) !=Pred L1) for( subMbPartIdx = 0; subMbPartIdx<NumSubMbPart(sub_mb_type[mbPartIdx]); subMbPartIdx++) for( compIdx =0; compldx <2; compIdx++) mvd_10[ mbPartIdx Il subMbPartIdx|[compIdx se(v) | ae(v) for( mbPartIdx = 0;mbPartIdx<4;mbPartIdx++) if( sub_mb_type[ mbPartIdx ] != B Direct 8x8 & SubMbPredMode(sub_mb_type[mbPartIdx])!= Pred_L0) for( subMbPartIdx =0; subMbPartIdx<NumSubMbPart(sub_mb_type[mbPartIdx]) subMbPartIdx++) for( compIdx =0; compldx <2; compIdx++) mvd_l1[ mbPartIdx subMbPartIdx compIdx ] se(v) | ae(v) G.7.4 Semantics Semantics associated with the syntax structures and syntax elements within these structures (in clause G.7.3 and in clause 7.3 by reference in clause G.7.3) are specified in this clause and by reference to clause 7.4. When the semantics of a syntax element are specified using a table or a set of tables, any values that are not specified in the table(s) shall not be present in the bitstream unless otherwise specified in this Recommendation | International Standard. Sub-bitstreams that are derived according to the process specified in clause G.8.8.1 shall conform to one or more of the profiles specified in Annex A or one or more of the profiles specified in this annex. Rec. ITU-T H.264 (01/2012) One or more sub-bitstreams shall conform to one or more of the profiles specified in Annex A. The decoding for these sub-bitstreams is specified in clauses 2-9 and Annexes B-E. The decoding for bitstreams conforming to one or more of the profiles specified in this annex is completely specified in this annex with reference made to clauses 2-9 and Annexes B-E. A specification or a process in clauses 2-9 and Annexes B-E may be used as is or by specifying assignments or alternative meanings of certain parts. This clause describes the semantics of syntax elements. The syntax elements appear multiple times in the bitstream and in each access unit. The meaning of each syntax element and derived variables depends on the position of the syntax structure in the bitstream in 