DECODING METHODS, ENCRYPTION METHODS, AND BIT FLOW METHODS

Abstract

The invention relates to a method of encoding and decoding, a bitstream, an encoder, a decoder, and a storage medium. The method includes: decoding a bitstream to determine the value of the first syntactic flag information; creating a candidate list of transformation models for the current block when the first syntactic flag information indicates that the current block uses an interframe prediction method; determining the transformation model of the current block based on the candidate list of transformation models, and determining the reference block of the current block; transforming the reference block based on the transformation model to determine the prediction block of the current block. In this way, the diversity of interframe predictions can be enhanced, thereby improving the efficiency of encoding and decoding.

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