US 12,244,865 B2
Video data stream, video encoder, apparatus and methods for HRD timing fixes, and further additions for scalable and mergeable bitstreams
Yago Sánchez De La Fuente, Berlin (DE); Karsten Sühring, Berlin (DE); Cornelius Hellge, Berlin (DE); Thomas Schierl, Berlin (DE); Robert Skupin, Berlin (DE); and Thomas Wiegand, Berlin (DE)
Assigned to FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE)
Appl. No. 17/787,223
Filed by FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE)
PCT Filed Dec. 18, 2020, PCT No. PCT/EP2020/087013
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/123159, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 19218926 (EP), filed on Dec. 20, 2019.
Prior Publication US 2023/0037902 A1, Feb. 9, 2023
Int. Cl. H04N 19/70 (2014.01); H04N 19/15 (2014.01); H04N 19/169 (2014.01); H04N 19/172 (2014.01); H04N 19/30 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/15 (2014.11); H04N 19/172 (2014.11); H04N 19/188 (2014.11); H04N 19/30 (2014.11)] 17 Claims
OG exemplary drawing
 
1. A method for decoding a picture from a bitstream, the method comprising:
decoding a first syntax element indicating a bit rate value and a second syntax element indicating a bit rate scale;
determining a bitrate for the bitstream by: (First Syntax Element+1)*2(6+Second Syntax Element);
decoding a subpicture level information (SLI) supplemental enhancement information (SEI) message indicating a fraction of a reference level corresponding to a subpicture of the picture; and
determining a bit rate of a subpicture bitstream based on multiplying the fraction with the bitrate for the bitstream, and a right shift.