rked as "used for long-term reference" is identified by its LongTermFrameldx and, when it is a field, by its parity, and, when it is a reference base picture, by the marking "reference base picture". While decoded pictures are represented by the sample arrays SL and, when ChromaArrayType is not equal to 0, Sb and Scr, reference base pictures are represented by the sample arrays B and, when ChromaArrayType is not equal to 0, BCb and BCr. When reference base pictures are referenced in the inter prediction process via clause 8.4.2.1, the samples arrays BL, BCb, and BC are referred to as SL, SCb, and SCr, respectively. The sample arrays SL, SCb, Scr, BL, BCb, and BCr that referenced in the inter prediction process via clause 8.4.2.1 are constructed as specified in clause G.8. Reference base pictures are associated with the same descriptive information such as the variables FrameNum, FrameNumWrap, PicNum, LongTermFrameIdx, and LongTermPicNum as decoded pictures. Frames or complementary field pairs marked as "used for short-term reference" or as "used for long-term reference" can be used as a reference for inter prediction when decoding a frame until the frame, the complementary field pair, or one of its constituent fields is marked as "unused for reference". A field marked as "used for short-term reference" or as "used for long-term reference" can be used as a reference for inter prediction when decoding a field until marked as "unused for reference". A picture can be marked as "unused for reference" by the sliding window reference picture marking process, a first-in, first-out mechanism specified in clause G.8.2.4.2, or by the adaptive memory control reference picture marking process, a customised adaptive marking operation specified in clauses G.8.2.4.3 and G.8.2.4.4. A short-term reference picture is identified for use in the decoding process by its variables FrameNum and FrameNumWrap and its picture number PicNum, and, when it is a reference base picture, by the marking as "reference base picture". A long-term ref