阅读说明：本技术 预测方向的确定方法、解码器以及计算机存储介质 (Method for determining prediction direction, decoder and computer storage medium ) 是由 霍俊彦 马彦卓 王江林 万帅 杨付正 于 2019-01-02 设计创作，主要内容包括：一种预测方向的确定方法、解码器以及计算机存储介质,所述方法应用于一解码器中,所述方法包括：获取待解码块的色度帧内预测模式中DM模式(S101)；根据DM模式的预测方向的索引号M和预设的偏移量N,确定DM推导模式的预测方向的索引号,以确定DM推导模式(S102)。(A method for determining a prediction direction, a decoder and a computer storage medium, the method being applied to a decoder, the method comprising: acquiring a DM mode in a chroma intra-prediction mode of a block to be decoded (S101); and determining the index number of the prediction direction of the DM derivation mode according to the index number M of the prediction direction of the DM mode and the preset offset N to determine the DM derivation mode (S102).)