Blockiness metric for large hevc block artifacts

A device for encoding video data comprising one or more processors configured to:

• determine a first value for a line of a first plurality of lines, wherein the first plurality of lines are perpendicular to a first edge of a block of the video data;
• in response to determining that the first value satisfies at least one threshold:
• determine a second value for the line of the first plurality of lines;
• and
• determine a second value for a line of a second plurality of lines, wherein the second plurality of lines are perpendicular to a second edge of the block of video data, and wherein the first edge is a vertical edge or a horizontal edge and wherein the second edge is a different edge of the vertical edge or the horizontal edge;
• determine, based on the second value for the line of the first plurality of lines and the second value for the line of the second plurality of lines, an average value;
• and
• determine, based on the average value, whether or not to encode one or more deblocking parameter offsets.

A device for encoding video data, the device comprising:

• means for determining a first value for a line of a first plurality of lines, wherein the first plurality of lines are perpendicular to a first edge of a block of the video data;
• means for determining, in response to determining that the first value satisfies at least one threshold, a second value for the line of the first plurality of lines;
• means for determining, in response to determining that the value satisfies the at least one threshold, a second value for a line of a second plurality of lines, wherein the second plurality of lines are perpendicular to a second edge of the block of video data, and wherein the first edge is a vertical edge or a horizontal edge and wherein the second edge is a different edge of the vertical edge or the horizontal edge;
• means for determining, based on the second value for the line of the first plurality of lines and the second value for the line of the second plurality of lines, an average value;
• and
• means for determining, based on the average value, whether or not to encode one or more deblocking parameter offsets.

A non-transitory computer-readable storage medium storing instructions that, when executed, cause one or more processors to encode video data, wherein the instructions that cause the one or more processors to encode the video data comprise instructions that cause the one or more processors to:

• determine a first value for a line of a first plurality of lines, wherein the first plurality of lines are perpendicular to a first edge of a block of the video data;
• in response to determining that the first value satisfies at least one threshold:
• determine a second value for the line of the first plurality of lines;
• determine a second value for a line of a second plurality of lines, wherein the second plurality of lines are perpendicular to a second edge of the block of video data, and wherein the first edge is a vertical edge or a horizontal edge and wherein the second edge is a different edge of the vertical edge or the horizontal edge;
• determine, based on the second value for the line of the first plurality of lines and the second value for the line of the second plurality of lines, an average value;
• and
• determine, based on the average value, whether or not to encode one or more deblocking parameter offsets.