g. Within a coded video sequence, the value of frame0_self_contained_flag in all frame packing arrangement SEI messages shall be the same. framel_self_contained_fla; equal to 1 indicates that no inter prediction operations within the decoding process for the samples of constituent frame 1 of the coded video sequence refer to samples of any constituent frame 0. framel_self_contained_flag equal to 0 indicates that some inter prediction operations within the decoding process for the samples of constituent frame 1 of the coded video sequence may or may not refer to samples of some constituent frame 0. When frame_packing_arrangement_ type is equal to 0 or 1, it is a requirement of bitstream conformance that shall be equal to 0. When frame packing_arrangement_type is equal to 0 or 1, the value 1 for framel_self_contained_flag is reserved for future use by ITU-T |ISO/IEC. When frame packing arrangement_type is equal to 0 or 1, decoders shall ignore the value of framel_self_contained_flag. Within a coded video sequence, the value of framel_self_contained_flag in all frame packing arrangement SEI messages shall be the same. NOTE 8 - When frame0_self_contained is equal to 1 or framel_self_contained_flag is equal to 1, and frame_packing_arrangement_type is equal to 2, it is expected that the decoded frame should not be an MBAFF frame. When quincunx_sampling_fla is equal to 0 and frame packing_arrangement_type is not equal to 5, two (x, y) coordinate pairs are specified to determine the indicated luma sampling grid alignment for constituent frame 0 and constituent frame 1, relative to the upper left corner of the rectangular area represented by the samples of the corresponding constituent frame. NOTE 9 - The location of chroma samples relative to luma samples can be indicated by the chroma_sample_loc_type_top_field and chroma_sample_loc_type_bottom_fiele syntax elements in the VUI parameters. frame0_grid_position_x (when present) specifies the X component of the (x, y) coordinate pair for constituent frame 0. frame0_grid_pos