* PicWidthInMbs - CropUnitX * frame_crop_right_offset)+ pan_scan_rect_right_offset[ and with vertical coordinates from 16 *CropUnitY * frame_crop_top_offset + pan_scan_rect_top_offset[: 16 * 16 * PicHeightInMbs - CropUnitY * frame_crop_bottom_offset) + pan_scan_rect_bottom_offset[ i]-1, inclusive. The value of 16 CropUnitX * frame_crop_left_offset pan_scan_rect_left_offset[i] shall equal 16 PicWidthInMbs - CropUnitX * frame_crop_right_offset) )+pan_scan_rect_right_offset[i]- and value of 16 * CropUnitY * frame_crop_top_offset + pan_scan_rect_top_offset[i] shall be less than or equal to 16 (16* PicHeightInMbs - CropUnitY (*frame_crop_bottom_offset)+pan_scan_rect_bottom_offset[i] When the pan-scan rectangular area includes samples outside of the cropping rectangle, the region outside of the cropping rectangle may be filled with synthesized content (such as black video content or neutral grey video content) for display. pan_scan_rect_repetition_period specifies the persistence of the pan-scan rectangle SEI message and may specify a picture order count interval within which another pan-scan rectangle SEI message with the same value of pan_scan_rect_id or the end of the coded video sequence shall be present in the bitstream. The value of pan_scan_rect_repetition_period shall be in the range of 0 to 384, inclusive. When pan_scan_ent_minusl is greater than 0, pan_scan_rect_repetition_periods shall not be greater than 1. ban_scan_rect_repetition_periodequal to 0 specifies that the pan-scan rectangle information applies to the current decoded picture only. ban_scan_rect_repetition_ period equal to 1 specifies that the pan-scan rectangle information persists in output order until any of the following conditions are true: A new coded video sequence begins. A picture in an access unit containing a pan-scan rectangle SEI message with the same value of pan_scan_rect_idis output having PicOrderCnt() greater than PicOrderCnt( CurrPic ). pan_scan_rect_repetition_period equal to 0 or equal to 1 indicates that another pan-scan rect