4.2.3.1 Supplemental enhancement information message semantics The semantics specified in clause 7.4.2.3.1 apply. G.7.4.2.4 Access unit delimiter RBSP semantics The semantics specified in clause 7.4.2.4 apply. NOTE - The value of primary pic type applies to the slice type values in all slice headers of the primary coded picture, including the slice type syntax elements in all NAL units with nal unit equal to 1, 5, or 20. NAL units with nal_unit_type equal to 2 are not present in bitstreams conforming to any of the profiles specified in this annex. G.7.4.2.5 End of sequence RBSP semantics The end of sequence RBSP specifies that the next subsequent access unit in the bitstream in decoding order (if any) shall be an access unit for which all layer representation of the primary coded picture have IdrPicFlag equal to 1. The syntax content of the SODB and RBSP for the end of sequence RBSP are empty. No normative decoding process is specified for an end of sequence RBSP. G.7.4.2.6 End of stream RBSP semantics The semantics specified in clause 7.4.2.6 apply. G.7.4.2.7 Filler data RBSP semantics The semantics specified in clause 7.4.2.7 apply with the following addition. Rec. ITU-T H.264 (01/2012) Filler data NAL units shall be considered to contain the syntax elements dependency_id quality_id, temporal_id, and priority_id with values that are inferred as follows: 1. Let prevSvcNalUnit be the most recent NAL unit in decoding order that has nal_unit_type equal to 14 or 20. NOTE - The most recent NAL unit in decoding order with nal_unit_type equal to 14 or 20 always belongs to the same access unit as the filler data NAL unit. 2. The values of dependency_id, quality_id, temporal_id, and priority_id for the filler data NAL unit are inferred to be equal to the values of dependency_id, quality_id, temporal_id, and priority_id, respectively, of the NAL unit prevSvcNalUnit. G.7.4.2.8 Slice layer without partitioning RBSP semantics The semantics specified in clause 7.4.2.8 apply. G.7.4.2.9 Slice data partition RBSP semantics Slice