US 11,930,186 B2
Method and apparatus for video coding
Madhu Peringassery Krishnan, Mountain View, CA (US); Xin Zhao, Santa Clara, CA (US); and Shan Liu, San Jose, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by Tencent America LLC, Palo Alto, CA (US)
Filed on Jun. 28, 2021, as Appl. No. 17/360,431.
Claims priority of provisional application 63/112,529, filed on Nov. 11, 2020.
Prior Publication US 2022/0150510 A1, May 12, 2022
Int. Cl. H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/593 (2014.01); H04N 19/61 (2014.01); H04N 19/625 (2014.01); H04N 19/80 (2014.01); H04N 19/91 (2014.01)
CPC H04N 19/159 (2014.11) [H04N 19/176 (2014.11); H04N 19/593 (2014.11); H04N 19/61 (2014.11); H04N 19/625 (2014.11); H04N 19/80 (2014.11); H04N 19/91 (2014.11)] 6 Claims
OG exemplary drawing
 
1. A method for video decoding in a decoder, comprising:
decoding coded information for a transform block (TB) from a coded video bitstream, the coded information indicating a primary transform type used for the TB;
entropy decoding a secondary transform index that is signaled in the coded video bitstream, a value of the secondary transform index being entropy decoded is dependent on the primary transform type used for the TB, the secondary transform index indicating a secondary transform in a set of secondary transforms that is to be performed on the TB; and
performing the secondary transform indicated by the secondary transform index on the TB.