Merge mode encoder, decoder and corresponding methods

The invention provides a method and equipment for processing a block according to a merge candidate list. The method comprises the following steps: constructing a first list according to motion information of adjacent blocks of a current block; obtaining prediction information of the current block; when the prediction information of the current block indicates that the sub-block prediction is applied to the current block, obtaining a unidirectional prediction candidate of the current block according to the first list; and performing inter prediction on the current block by using the unidirectional prediction candidate of the current block. According to the embodiment of the invention, the conventional merge list can be directly used, and an uni-prediction merge candidate list for sub-block prediction does not need to be explicitly generated. 本发明提供根据合并候选列表对块进行处理的方法和设备，该方法包括：根据当前块的相邻块的运动信息构建第一列表；获取当前块的预测信息；当当前块的预测信息指示当前块应用了子块预测时，根据第一列表获取当前块的单向预测候选；使用当前块的单向预测候选对当前块进行帧间预测。根据本发明的实施例，常规合并列表可以直接使用，不需要显式生成子块预测的单向预测合并