ual to 0, the following ordered steps are specified: (1) The SVC decoding process for picture numbers as specified in clause G.8.2.2 is invoked with currDependencyId and refPicListConstructionFlag set equal to 0 as the inputs. (2) The SVC sliding window decoded reference picture marking process as specified in clause G.8.2.4.2 is invoked with refBasePicFlag equal to 1 as the input. The reference base picture of the current picture is marked as "used for short-term reference"an as "reference base picture" and, when the reference base picture of the current picture is the second reference base field (in decoding order) of a complementary reference base field pair and the first reference base field is marked as "used for short-term reference" (and "reference base picture"), the complementary reference base field pair is also marked as "used for short-term reference" and "reference base picture". NOTE 2 - When both the decoded picture and the reference base picture for an access unit (including the current access unit) are marked as "used for reference", either both pictures are marked as "used for short-term reference" or both pictures are marked as "used for long-term reference" after the completion of the process specified in this clause. And in the latter case, the same value of LongTermFrameldx is assigned to both pictures. It is a requirement of bitstream conformance that, after marking the current decoded reference picture and, when store_ref_base_pic_flag is equal to 1, the current reference base picture, the total number of frames with at least one field Rec. ITU-T H.264 (01/2012) marked as "used for reference", plus the number of complementary field pairs with at least one field marked as "used for reference", plus the number of non-paired fields marked as "used for reference" shall not be greater than Max( max_num_ref_frames, NOTE 3 - For this constraint, the pictures marked as "reference base pictures" and the pictures not marked as "reference base picture" are taken into account. G.8.2.4.2 SVC sliding wi