US 12,149,718 B2
Video coding aspects of temporal motion vector prediction, interlayer referencing and temporal sublayer indication
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 FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE)
Appl. No. 18/008,546
Filed by FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE)
PCT Filed Jun. 8, 2021, PCT No. PCT/EP2021/065270
§ 371(c)(1), (2) Date Dec. 6, 2022,
PCT Pub. No. WO2021/249994, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 20179115 (EP), filed on Jun. 9, 2020.
Prior Publication US 2023/0345019 A1, Oct. 26, 2023
Int. Cl. H04N 19/30 (2014.01); H04N 19/172 (2014.01); H04N 19/52 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/30 (2014.11) [H04N 19/172 (2014.11); H04N 19/52 (2014.11); H04N 19/70 (2014.11)] 10 Claims
OG exemplary drawing
 
1. A decoder for decoding a multi-layered video bitstream representing a coded video sequence, the multi-layered video bitstream comprising access units, each access unit comprising one or more pictures of the coded video sequence, wherein each of the pictures belongs to one of layers of the multi-layered video bitstream, and wherein each of the access units belongs to a temporal sublayer of a set of temporal sublayers of the coded video sequence, the decoder configured to:
derive from the multi-layered video bitstream:
a video parameter set including one or more bitstream conformance sets, one or more buffer requirement sets, and one or more decoder requirement sets, and
an OLS indication of an output layer set (OLS) of the multi-layered video bitstream, the OLS indicating a subset of layers of the multi-layered video bitstream, and associating the OLS with a corresponding one of each of the bitstream conformance sets, the one or more buffer requirement sets, and the one or more decoder requirement sets,
wherein in each of the bitstream conformance sets, the buffer requirement sets, and the one or more decoder requirement sets, a temporal subset indication is indicative of a constraint on a maximum temporal sublayer; and
if a maximum temporal sublayer indication is not available, infer that a maximum temporal sublayer of the multi-layered video bitstream to be decoded equals the maximum temporal sublayer as indicated by the constraint on the maximum temporal sublayer in the corresponding decoder requirement set associated with the OLS.