Encoding method, decoding method, apparatus, device, system, and readable storage medium

An apparatus for encoding, comprising:

• a processor, and a memory coupled to the processor to store instructions, which when executed by the processor, cause the processor to:
• obtain 2n groups of code stream blocks, wherein any group of code stream blocks comprises a control block and a data block, and n is an integer greater than 1;
• and
• perform first encoding on the 2n groups of code stream blocks to obtain a target code block comprising a data unit and a type determined based on control blocks in the 2n groups of code stream blocks, wherein the data unit is obtained by performing the first encoding on data blocks in the 2n groups of code stream blocks in an encoding manner determined based on the control blocks and the data blocks in the 2n groups of code stream blocks.

An apparatus for decoding, wherein the apparatus comprises:

• a processor, and a memory coupled to the processor to store instructions, which when executed by the processor, cause the processor to:
• obtain a target code block, wherein the target code block comprises a type and a data unit;
• and
• perform first decoding on the target code block based on the type and the data unit of the target code block, to obtain 2n groups of code stream blocks, wherein any group of code stream blocks comprises a data block and a control block obtained based on the type and the data unit, the data block is obtained by performing the first decoding on the data unit in a decoding manner determined based on the type and the data unit, and n is an integer greater than 1.