Patent ID: 11968366
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The method according to claim 4, wherein the determining the reference QM comprises:
determining the reference QM according to a syntax element scaling_list_pred_id_delta when a syntax element scaling_list_copy_mode_flag is equal to one or a syntax element scaling_list_pred_mode_flag is equal to one, and the predefined first variable sizePresentFlag[log(matrixSize)−1] is equal to one, and
the syntax element scaling_list_copy_mode_flag being equal to one indicating that the first QM is being decoded in the copy mode, the syntax element scaling_list_pred_mode_flag being equal to one indicating that the first QM is being decoded in the prediction mode, and the predefined first variable sizePresentFlag[log(matrixSize)−1] being equal to one indicating the reference QM corresponding to the first QM.