Methods for constructing a merge candidate list

An apparatus for performing video processing, the apparatus comprising:

• a memory configured to store instructions;
• and
• one or more processors configured to execute the instructions to cause the apparatus to perform:
• inserting a set of spatial merge candidates to a first merge candidate list of a coding block,
• wherein the first merge candidate list is constructed by:
• adding a top neighboring block B1 to the first merge candidate list when the top neighboring block B1 is available;
• adding a left neighboring block A1 to the first merge candidate list when the left neighboring block A1 is available;
• adding a top neighboring block B0 to the first merge candidate list when the top neighboring block B0 is available;
• adding a left neighboring block A0 to the first merge candidate list when the left neighboring block A0 is available;
• and
• adding an above-left neighboring block B2 to the first merge candidate list when the above-left neighboring block B2 is available.

A non-transitory computer readable storage medium storing a bitstream of a video for processing according to a method comprising:

• inserting a set of spatial merge candidates to a first merge candidate list of a coding block,
• wherein the first merge candidate list is constructed by:
• adding a top neighboring block B1 to the first merge candidate list when the top neighboring block B1 is available;
• adding a left neighboring block A1 to the first merge candidate list when the left neighboring block A1 is available;
• adding a top neighboring block B0 to the first merge candidate list when the top neighboring block B0 is available;
• adding a left neighboring block A0 to the first merge candidate list when the left neighboring block A0 is available;
• and
• adding an above-left neighboring block B2 to the first merge candidate list when the above-left neighboring block B2 is available.