Encoding and decoding method, code stream, encoder, decoder and storage medium

The embodiment of the invention discloses a coding and decoding method, a code stream, a coder, a decoder and a storage medium, applied to the coder, the method comprises the following steps: determining a first matching block of a current block; performing motion compensation enhancement on the first matching block to obtain at least one second matching block; determining motion information of the current block according to the at least one second matching block; and encoding the current block according to the motion information. Therefore, on the premise of ensuring the same decoding quality, the code rate can be saved, and the coding and decoding efficiency can be further improved. 本申请实施例公开了一种编解码方法、码流、编码器、解码器以及存储介质，应用于编码器，该方法包括：确定当前块的第一匹配块；对第一匹配块进行运动补偿增强，得到至少一个第二匹配块；根据至少一个第二匹配块，确定当前块的运动信息；根据运动信息，对当前块进行编码。这样，在保证相同解码质量的前提下，可以节省码率，进而能够提高编解码效率。