Patent ID: 11968375
Assignee: BYTEDANCE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. The apparatus of claim 10, wherein the one or more parameters comprises a right offset of the scaling window derived as follows:
subpicScalWinRightOffset=(rightSubpicBd>=sps_pic_width_max_in_luma_samples) ? pps_scaling_win_right_offset:pps_scaling_win_right_offset−(sps_pic_width_max_in_luma_samples−rightSubpicBd)/SubWidthC, and rightSubpicBd=(sps_subpic_ctu_top_left_x[spIdx]+sps_subpic_width_minus1[spIdx]+1)*CtbSizeY,
wherein subpicScalWinRightOffset denotes the right offset of the scaling window applicable to the subpicture,
wherein sps_pic_width_max_in_luma_samples specifies an original maximum width, in units of luma samples, of each decoded picture referring to the sequence parameter set,
wherein pps_scaling_win_right_offset indicates an original right offset applied to a picture size for scaling ratio calculation,
wherein SubWidthC indicates a width of a video block and is obtained from a table according to a chroma format of a picture including the video block,
wherein sps_subpic_ctu_top_left_x[spIdx] indicates an original x-coordinate of a coding tree unit located at a top-left corner of the spIdx-th subpicture,
wherein sps_subpic_width_minus1[spIdx] indicates an original width of the spIdx-th subpicture, and
wherein CtbSizeY is a width or a height of a luma coding tree block or coding tree unit.