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

An encoding apparatus, wherein the apparatus comprises:

• a memory storing instructions;
• and
• a processor coupled to the memory to execute the instructions to:
• obtain 2n groups of code stream blocks, wherein at least one group of the 2n groups of code stream blocks comprises a control block and a data block, and n is an integer greater than 1;
• and
• perform a first encoding on the 2n groups of code stream blocks to obtain a target code block, wherein the target code block comprises a type determined based on the control blocks in the 2n groups of code stream blocks and a data unit determined based on the control blocks and data blocks in the 2n groups of code stream blocks.

A decoding apparatus, wherein the apparatus comprises:

• a memory storing instructions;
• and
• a processor coupled to the memory to execute the instructions to:
• obtain a target code block comprising a type and a data unit;
• and
• perform a 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 at least one group of code stream blocks comprises a control block and a data block that are obtained based on the type and the data unit, and n is an integer greater than 1.