, and temporal equal to the particular values of dependency_id quality_id, and temporal_id, respectively, and sub_pic_layer_flag[ i ] equal to 1. When sub_pic_layer_flag[i is equal to 1 for the current scalable layer and the target access unit set contains any primary coded VCL NAL unit that has dependency id equal to dependency_ id| resides inside the sub-picture area, and has particular values of quality_ and temporal id, with either quality_i id not equal to quality_id[i] or temporal_id not equal to temporal id| the scalability information SEI message shall also contain information for a scalable layer j with dependency_i equal to dependency_id[i] quality_id[j] and temporal_id[j equal to the particular values of quality id and temporal_id respectively, sub_pic_layer_flag| ] equal to 1, and horizontal_offset[_j vertical_offset[ region_width[ and region_height[j equal to horizontal_offset[ vertical_offset[ region_width[i and region_height| i], respectively. The scalability information SEI message shall not contain information for two or more scalable layers with sub_pic_layer_flag[ equal to 1 and the same values of dependency_id[ quality_id[i], temporal_id[i] sub_pic_layer_flag[ ], horizontal_offset[ i , vertical_offset[ i], region_width[ and region_height[ i]. When the scalability information SEI message contains information for two scalable layers A and B (identified by layer_id[ a and layer_id[b] respectively) with dependency_io a ] equal to dependency_id[b] quality_i a ] equal to quality_id[ b], temporal_id a ] equal to temporal id| sub _pic_layer_flag[ a ] equal to 1, and ub_pic_layer_flag[[ b equal to 1, and the sub-picture areas associated with the scalable layers A and B overlap, the scalability information SEI message shall also contain information for a scalable layer C (identified by layer id| with dependency_id[c] equal to dependency_id[b], quality_id[ equal to quality_id[b], temporal_id[c] equal to temporal_id[ and sub_pic_layer_flag C is equal to 1, and with the scalable layer C being associated wi