eference base picture. G.3.44 reference base frame: A reference frame that is obtained by decoding a base quality layer representation with the syntax element not equal to 0, the store_ref_base_pic_flag syntax element equal to 1, and the field_pic_flag syntax element equal to 0 of a coded picture and all layer representations of the coded picture that are referred to by inter-layer prediction of the base quality layer representation. A reference base frame is not a decoded picture and it is not an output of the decoding process, but may be used for inter prediction when P, B, EP, and EB slices of a coded frame are decoded. See also reference base picture. Rec. ITU-T H.264 (01/2012) G.3.45 reference base picture: A collective term for a reference base field or a reference base frame. G.3.46 reference field: A reference field may be used for inter prediction when P, B, EP, or EB slices of a coded field or field macroblocks of a coded frame are decoded. See also reference picture. G.3.47 reference frame: A reference frame may be used for inter prediction when P, B, EP, or EB slices of a coded frame are decoded. See also reference picture. G.3.48 reference layer macroblock: A macroblock of a reference layer representation. G.3.49 reference layer representation: A reference layer representation for a particular layer representation of a coded picture is the layer representation that is used for inter-layer prediction of the particular layer representation. The reference layer representation belongs to the same access unit as the layer representation that uses the reference layer representation for inter-layer prediction. G.3.50 reference picture: A collective term for a decoded picture that is obtained by decoding a coded picture for which the nal ref ide syntax element that is associated with the target dependency representation is not equal to 0 or a reference base picture. A reference picture contains samples that may be used for inter prediction in the decoding process of subsequent pictures in decoding order. G.3