Video data encoding and decoding methods and apparatuses

A video data decoding method, comprising:

• acquiring a to-be-decoded bitstream;
• determining a to-be-decoded information group;
• obtaining, by parsing, a primary information group corresponding to the to-be-decoded information group, the primary information group comprising a first data information, a first indication information that indicates whether the to-be-decoded information group is the primary information group or a redundant information group, and location information of the primary information group, the redundant information group comprising a second data information, location information of the redundant information group, a second indication information that indicates whether the to-be-decoded information group is the primary information group or the redundant information group, and location relationship information of the redundant information group and the primary information group, and the location relationship information of the redundant information group and the primary information group being used to deduce the location information of the primary information group;
• obtaining, by parsing, the redundant information group corresponding to the to-be-decoded information group by:
• determining whether the primary information group is correctly obtained by parsing;
• stopping parsing the to-be-decoded information group without further needing to obtain, by parsing, the redundant information group corresponding to the to-be-decoded information group when the primary information group is correctly obtained by parsing;
• and
• continuing to obtain, by parsing, the redundant information group corresponding to the to-be-decoded information group when the primary information group is not correctly obtained by parsing, the redundant information group comprising the second data information, the location information of the redundant information group, the second indication information that indicates whether the to-be-decoded information group is the primary information group or the redundant information group, and the location relationship information of the redundant information group and the primary information group, and the location relationship information of the redundant information group and the primary information group being used to deduce the location information of the primary information group;
• and
• acquiring a decoded information group based on the primary information group obtained by parsing or the redundant information group obtained by parsing, the decoded information group being acquired based on the primary information group obtained by parsing when the primary information group is correctly obtained by parsing, the decoded information group being acquired based on the redundant information group obtained by parsing when the primary information group is not correctly obtained by parsing, and the decoded information group being used for reconstruction of an encoded video sequence.

A video data decoding apparatus, comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• acquire a to-be-decoded bitstream;
• determine a to-be-decoded information group;
• obtain, by parsing, a primary information group corresponding to the to-be-decoded information group, the primary information group comprising a first data information, a first indication information that indicates whether the to-be-decoded information group is the primary information group or a redundant information group, and location information of the primary information group the redundant information group comprising a second data information, location information of the redundant information group, a second indication information that indicates whether the to-be-decoded information group is the primary information group or the redundant information group, and location relationship information of the redundant information group and the primary information group, and the location relationship information of the redundant information group and the primary information group being used to deduce the location information of the primary information group;
• obtain, by parsing, the redundant information group corresponding to the to-be-decoded information group by:
• determining whether the primary information group is correctly obtained by parsing;
• stopping parsing of the to-be-decoded information group without further needing to obtain, by parsing, the redundant information group corresponding to the to-be-decoded information group when the primary information group is correctly obtained by parsing;
• and
• continuing to obtain, by parsing, the redundant information group corresponding to the to-be-decoded information group when the primary information group is not correctly obtained by parsing, the redundant information group comprising the second data information, the location information of the redundant information group, the second indication information that indicates whether the to-be-decoded information group is the primary information group or the redundant information group, and the location relationship information of the redundant information group and the primary information group, and the location relationship information of the redundant information group and the primary information group being used to deduce the location information of the primary information group;
• and
• acquire a decoded information group based on the primary information group obtained by parsing or the redundant information group obtained by parsing, the decoded information group being acquired based on the primary information group obtained by parsing when the primary information group is correctly obtained by parsing, the decoded information group being acquired based on the redundant information group obtained by parsing when the primary information group is not correctly obtained by parsing, and the decoded information group being used for reconstruction of an encoded video sequence.