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sub_mb_pred( mb_type ) { for( mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++ ) // sub_mb_type[ mbPartIdx ] 指明子宏块的预测类型,在不同的宏块类型中这个句法元素的语义不一样。 sub_mb_type [ mbPartIdx ] for( mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++ ) if( ( num_ref_idx_l0_active_minus1 > 0 | | mb_field_decoding_flag ) && mb_type != P_8x8ref0 && sub_mb_type[ mbPartIdx ] != B_Direct_8x8 && SubMbPredMode( sub_mb_type[ mbPartIdx ] ) != Pred_L1 ) ref_idx_l0 [ mbPartIdx ] for( mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++ ) if( (num_ref_idx_l1_active_minus1 > 0 | | mb_field_decoding_flag ) && sub_mb_type[ mbPartIdx ] != B_Direct_8x8 && SubMbPredMode( sub_mb_type[ mbPartIdx ] ) != Pred_L0 ) ref_idx_l1 [ mbPartIdx ] for( mbPartIdx = 0; mbPartIdx < 4; mbPartIdx++ ) if( sub_mb_type[ mbPartIdx ] != B_Direct_8x8 && SubMbPredMode( sub_mb_type[ mbPartIdx ] ) != Pred_L1 ) for( subMbPartIdx = 0; subMbPartIdx < NumSubMbPart( sub_mb_type[ mbPartIdx ] ); subMbPartIdx++) for( compIdx = 0; compIdx < 2; compIdx++ ) mvd_l0 [ mbPartIdx ][ subMbPartIdx ][ compIdx ] 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; compIdx < 2; compIdx++ ) mvd_l1 [ mbPartIdx ][ subMbPartIdx ][ compIdx ] } 转载地址:http://ibzoi.baihongyu.com/