Adaptive deblocking filter

A non-transitory computer-readable storage medium storing computer-readable instructions executable by one or more processors, that when executed by the one or more processors, cause the one or more processors to perform operations comprising:

• partitioning a frame into a plurality of rectangular coding units;
• selecting a first coding unit and a second coding unit of the plurality of rectangular coding units, the second coding unit being adjacent to the first coding unit;
• identifying a coding unit boundary shared by the first coding unit and second coding unit;
• determining whether at least one of the first coding unit or the second coding unit is non-square in shape;
• upon determining that at least one of the first coding unit or the second coding unit is non-square in shape,
• determining a first shape of the first coding unit and a second shape of the second coding unit;
• adaptively selecting a deblocking filter based on the first shape and the second shape;
• and
• applying the selected deblocking filter to pixels across the coding unit boundary.

A computing device comprising:

• one or more processors;
• and
• memory communicatively coupled to the one or more processors, the memory storing computer-executable modules executable by the one or more processors, the computer-executable modules including:
• a partition module configured to partition a frame into a plurality of rectangular coding units;
• a selection module configured to select a first coding unit and a second coding unit of the plurality of rectangular coding units, the second coding unit being adjacent to the first coding unit;
• a determination module configured to:
• determine whether at least one of the first coding unit or the second coding unit is non-square in shape,
• upon determining that at least one of the first coding unit or the second coding unit is non-square in shape, identify a coding unit boundary shared by the first and second coding units, and
• determine a first shape of the first coding unit and a second shape of the second coding unit;
• and
• a decoder module configured to:
• adaptively select a deblocking filter based on the first shape and the second shape, and
• apply the selected deblocking filter to pixels across the coding unit boundary.