| CPC H04N 19/52 (2014.11) [H04N 19/126 (2014.11); H04N 19/176 (2014.11)] | 20 Claims |

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1. A method for coding video data, comprising:
constructing, for a conversion between a current video block of a video and a bitstream of the video, a merge motion candidate list for the current video block;
determining a merge candidate from the merge motion candidate list; and
performing the conversion based on the determining,
wherein at least one coding tool is disabled when the merge candidate is an asymmetric bi-predictive merge candidate,
wherein different weights indicated by the asymmetric bi-predictive merge candidate are applied to a first prediction block and a second prediction block of the current video block to acquire a final prediction block, and
wherein the at least one coding tool includes a decoder-side motion vector refinement (DMVR).
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