US 12,244,821 B2
Video coding transform size signaling
Yixin Du, Palo Alto, CA (US); Byeongdoo Choi, Palo Alto, CA (US); Xiang Li, Palo Alto, CA (US); Xin Zhao, Palo Alto, CA (US); Stephan Wenger, Palo Alto, CA (US); and Shan Liu, Palo Alto, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Nov. 16, 2023, as Appl. No. 18/511,360.
Application 18/511,360 is a continuation of application No. 18/100,942, filed on Jan. 24, 2023, granted, now 11,876,975.
Application 18/100,942 is a continuation of application No. 17/024,246, filed on Sep. 17, 2020, granted, now 11,606,563, issued on Mar. 14, 2023.
Claims priority of provisional application 62/905,339, filed on Sep. 24, 2019.
Prior Publication US 2024/0089461 A1, Mar. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/46 (2014.01); H04N 19/122 (2014.01); H04N 19/146 (2014.01); H04N 19/169 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/146 (2014.11) [H04N 19/122 (2014.11); H04N 19/186 (2014.11); H04N 19/1883 (2014.11); H04N 19/46 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of video coding, executable by a processor, the method comprising:
receiving video data having a coding tree unit size; and
determining whether the coding tree unit size is greater than a predetermined threshold;
in response to the coding tree unit size being greater than the predetermined threshold, signaling, in a sequence parameter set (SPS), a first flag indicating whether a maximum transform size in luma samples is equal to 64,
wherein the first flag being equal to 1 specifies that the maximum transform size in luma samples is equal to 64,
wherein the first flag equal to 0 specifies that the maximum transform size in luma samples is equal to 32, and
wherein when not present, the first flag is inferred to be equal to 0.