Multimedia data processing method, apparatus, device, computer-readable storage medium, and computer program product

A device comprising a memory for storing computer instructions and a processor in communication with the memory, wherein, when the processor executes the computer instructions, the processor is configured to cause the device to:

• acquire attribute information of a to-be-decoded data block in a multimedia data frame;
• acquire a first target reference data block matching the attribute information of the to-be-decoded data block from one of:
• a first reference data block set, a second reference data block set, or a third reference data block set integrating the first reference data block set and the second reference data block set, the first reference data block set comprising decoded data blocks not having a neighbor relationship with the to-be-decoded data block, and the second reference data block set comprising decoded data blocks having a neighbor relationship with the to-be-decoded data block, wherein:
• the first reference data block set comprises one or more first reference data blocks;
• the first reference data block is an encoded data block satisfying the following three conditions:
• the first reference data block belongs to the same decoding tile as the to-be-decoded data block, a parameter association relationship in the multimedia data frame satisfies a write-back limitation condition, and the parameter association relationship satisfies a decoding processing condition;
• the parameter association relationship indicates an association relationship among first position information, size information of a superblock and second position information, the first position information being position information of an encoded data block in the multimedia data frame, and the second position information being position information of the to-be-decoded data block in the multimedia data frame;
• and
• the write-back limitation condition indicates a delay requirement for writing the decoded data block to the first reference data block set;
• and
• decode the to-be-decoded data block according to the first target reference data block.

A non-transitory storage medium for storing computer readable instructions, the computer readable instructions, when executed by a processor, causing the processor to:

• acquire attribute information of a to-be-decoded data block in a multimedia data frame;
• acquire a first target reference data block matching the attribute information of the to-be-decoded data block from one of:
• a first reference data block set, a second reference data block set, or a third reference data block set integrating the first reference data block set and the second reference data block set, the first reference data block set comprising decoded data blocks not having a neighbor relationship with the to-be-decoded data block, and the second reference data block set comprising decoded data blocks having a neighbor relationship with the to-be-decoded data block, wherein:
• the first reference data block set comprises one or more first reference data blocks;
• the first reference data block is an encoded data block satisfying the following three conditions:
• the first reference data block belongs to the same decoding tile as the to-be-decoded data block, a parameter association relationship in the multimedia data frame satisfies a write-back limitation condition, and the parameter association relationship satisfies a decoding processing condition;
• the parameter association relationship indicates an association relationship among first position information, size information of a superblock and second position information, the first position information being position information of an encoded data block in the multimedia data frame, and the second position information being position information of the to-be-decoded data block in the multimedia data frame;
• and
• the write-back limitation condition indicates a delay requirement for writing the decoded data block to the first reference data block set;
• and
• decode the to-be-decoded data block according to the first target reference data block.