US 12,206,912 B2
Techniques for constraint flag signaling for range extension with extended precision
Byeongdoo Choi, Palo Alto, CA (US); Shan Liu, San Jose, CA (US); and Stephan Wenger, Hillsborough, CA (US)
Assigned to Tencent America LLC, Palo Alto, CA (US)
Filed by Tencent America LLC, Palo Alto, CA (US)
Filed on Mar. 31, 2022, as Appl. No. 17/710,764.
Claims priority of provisional application 63/250,162, filed on Sep. 29, 2021.
Prior Publication US 2023/0098691 A1, Mar. 30, 2023
Int. Cl. H04N 19/98 (2014.01); H04N 19/146 (2014.01); H04N 19/172 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/98 (2014.11) [H04N 19/146 (2014.11); H04N 19/172 (2014.11); H04N 19/70 (2014.11)] 17 Claims
OG exemplary drawing
 
1. A method of video decoding in a decoder, comprising:
determining, by a processor, a first syntax element in general constraint information for coding control of pictures in an output layer set of coded video data in a bitstream, the first syntax element being associated with a coding tool for processing transform coefficients with a dynamic range that is extended from a predetermined dynamic range, wherein the dynamic range is associated with an extended precision; and
in response to the first syntax element in the general constraint information being a first value indicative of disabling of the coding tool in the output layer set, decoding, by the processor, the output layer set of the coded video data in the bitstream without invoking the coding tool.