presentations with dependency id equal to sei_dependency id| and quality id equal to sei_quality_id[i]. When i is greater than 0, the value of +sei_quality_id[i] shall not be equal to any of the values of (16 * sei_dependency_id[_i +sei_quality_id[j]) with j=0..(i-1). When num_layer_representations_minus1 is not present, the values of sei_dependency_id[i and _quality_ id| for in the range of to num_layer_representations minus1 (with num_layer_representations_minus1 being the inferred value), inclusive, shall be inferred as specified in the following: 1. Let setDQId be the set of the values DQId for all layer representations that are present in the primary coded picture of the access unit. 2. For i proceeding from 0 to num_layer_representations_minus1, inclusive, the following applies: sei_dependency_id and sei_quality_id[i] are inferred to be equal to minDQId >> and minDQId & 15), respectively, with minDQId being the smallest value (smallest value of DQId) in the set setDQId. b. The smallest value (smallest value of DQId) of the set setDQId is removed from setDQId and thus the number of elements in the set setDQId is decreased by 1. sei_temporal id indicates the temporal_i value of the bitstream subset to which the nested SEI message applies. When sei_temporal_ id is not present, it shall be inferred to be equal to temporal_id of the access unit. When the nested SEI message is a buffering period SEI message or a picture timing SEI message (i.e., payloadType is equal to 0 or 1 for the nested SEI message), sei_temporal id indicates the bitstream subset for which the nested buffering period SEI message or picture timing SEI message applies. For a buffering period SEI message or picture timing SEI message that is nested in a scalable nesting SEI message, sei_dependency_id[i] ei_quality_id i , and sei_temporal_i id specify the greatest values of dependency_id, quality_id, and temporal_id, respectively, of the bitstream subsets to which Rec. ITU-T H.264 (01/2012) the nested buffering period SEI message or picture timin