ded reference picture base marking syntax structure shall be the same in all slice headers of the primary coded picture. When one or more redundant coded pictures are present, the content of the decoded reference base picture marking syntax structure shall be the same in all slice headers of a redundant coded picture with a particular value of redundant_pic_cnt. NOTE 1 - It is not required that the content of the decoded reference base picture marking syntax structure in a redundant coded picture with a particular value of redundant_pic_cnt is identical to the content of the decoded reference base picture marking syntax structure in the corresponding primary coded picture or a redundant coded picture with a different value of redundant_pic_cnt. However, as specified in clause G.7.4.3.4 (by referencing clause 7.4.3), the content of the decoded reference base picture marking syntax structure in a redundant coded picture is constrained in the way that the marking status of reference pictures and the value of frame num after the SVC decoded reference picture marking process in clause G.8.2.4 must be identical regardless whether the primary coded picture or any redundant coded picture of the access unit would be decoded. Rec. ITU-T H.264 (01/2012) The nemory_management_base_control_operation commands of the dec_ref_base_pic_marking() syntax structure are processed by the decoding process before the memory_management_control_operation commands of the dec_ref_pic_marking() syntax structure are processed. addaptive_ref_base_pic_marking_mode_flag selects ther reference base picture marking mode for the current picture or layer picture as specified in Table G-2. enadaptive_ref_base_pic_marking_mode_flag is not present and quality_id is equal to 0, it shall be inferred to be equal to 0. Table G-2 - Interpretation of adaptive_ref_base_pic_marking_mode_flag adaptive_ref_base_pic_marking_mode_flag Reference base picture marking mode specified Sliding window reference picture marking mode: A marking mode providing a first-in, f