reater than 1 specifies that the frame packing arrangement SEI message persists until any of the following conditions are true: A new coded video sequence begins. A frame in an access unit containing a frame packing arrangement SEI message with the same value of frame_packing_arrangement_ic is output having PicOrderCnt() greater than PicOrderCnt( CurrPic) and less than or equaltoPicOrderCnt(CurrPic) + frame_packing_arrangement_repetition_period. frame_packing_arrangement_repetition_period greater than 1 indicates that another frame packing arrangement SEI message with the same value of frame_packing_arrangement_frames_id shall be present for a frame in an access unit that is output having PicOrderCnt() greater than PicOrderCnt( CurrPic ) and less than or equal to PicOrderCnt( CurrPic)+frame_packing_arrangement_repetition_period;unless the bitstream ends or a new coded video sequence begins without output of such a frame. frame_packing_arrangement_extension_flag equal to 0 indicates that no additional data follows within the frame packing arrangement SEI message. It is a requirement of bitstream conformance that the value of frame packing arrangement_extension_flag shall be equal to 0. The value 1 for frame packing_arrangement_extension_flag is reserved for future use by ITU-T | ISO/IEC. Decoders shall ignore the value 1 for frame packing_arrangement_extensio in a frame packing arrangement SEI message and shall ignore all data that follows within a frame packing arrangement SEI message after the value 1 for frame packing_arrangement_extension_flag XXXXXXXX XXXXXXXX XXXXXXXX Upconversion XXXXXXXX processing XXXXXXXX XXXXXXXX XXXXXXXX XOXXOXO XXXXXXXX OXOXXOX XOXXOXO Samples of color Upconverted color OXXXOX component plane of Checkerboard component plane of XOXXXO interleaving constituent frame 0 constituent frame 0 OXOXOXOX decomposition XOXOXOXO 00000ooo OXOXOX 0000O Interleaved color Toooo 000ooo component plane of a 00ooooo checkerboard interleaved Upconversion 00000000 decoded frame processing 00000000 000oooo