Patent ID: 11949866
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of processing visual media data, comprising:
performing a conversion between a visual media file and a bitstream of visual media data according to a format rule,
wherein the bitstream includes
(i) a first high level syntax (HLS) element indicating that explicit multiple transform selection (MTS) is disabled for a first block that is an intra coded block in a picture, transform type information indicating a transform type is signaled by the explicit MTS, and
(ii) a second HLS element indicating whether the explicit MTS is enabled or disabled for a second block that is an inter coded block in the picture, and

wherein the format rule specifies that implicit MTS is applied to the first block in response to the explicit MTS being indicated by the first HLS as disabled for the first block without considering whether the explicit MTS is enabled or disabled for the second block, no transform type information is signaled by the implicit MTS.