Geometric partition mode with increased efficiency

1. A method of decoding video data, the method comprising:

determining a first distance index associated with a first geometric partition mode (GEO) angle for a first prediction unit (PU) of the video data to be 4;

determining, based on the first distance index, a first displacement value indicative of a distance from a center of the first PU to a GEO split such that a location of the GEO split is determined; and

decoding the first PU based on the first GEO angle and the first displacement value,

wherein the first displacement value is half of a displacement value associated with a distance index of 2.

2. The method of claim 1 , wherein determining the first displacement value comprises looking up the first distance index of 4 in a look-up table.

3. The method of claim 1 , wherein the first displacement value is associated with a quantization level of a cosine of the first GEO angle.

4. The method of claim 1 , further comprising:

determining a second distance index associated with a second GEO angle for a second PU of the video data to be 12;

determining a second displacement value based on the second distance index; and

decoding the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 14.

5. The method of claim 1 , further comprising:

determining a second distance index associated with a second GEO angle for a second PU of the video data to be 20;

determining a second displacement value based on the second distance index; and

decoding the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 18.

6. The method of claim 1 , further comprising:

determining a second distance index associated with a second GEO angle for a second PU of the video data to be 28;

determining a second displacement value based on the second distance index; and

decoding the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 30.

7. A device for decoding video data, the device comprising:

a memory configured to store the video data; and

one or more processors implemented in circuitry and coupled to the memory, the one or more processors being configured to:

determine a first distance index associated with a first geometric partition mode (GEO) angle for a first prediction unit (PU) of the video data to be 4;

determine, based on the first distance index, a first displacement value indicative of a distance from a center of the first PU to a GEO split such that a location of the GEO split is determined; and

decode the first PU based on the first GEO angle and the first displacement value,

wherein the first displacement value is half of a displacement value associated with a distance index of 2.

8. The device of claim 7 , wherein the one or more processors determine the first displacement value by looking up the first distance index of 4 in a look-up table.

9. The device of claim 7 , wherein the first displacement value is associated with a quantization level of a cosine of the first GEO angle.

10. The device of claim 7 , wherein the one or more processors are further configured to:

determine a second distance index associated with a second GEO angle for a second PU of the video data to be 12;

determine a second displacement value based on the second distance index; and

decode the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 14.

11. The device of claim 7 , further comprising:

determine a second distance index associated with a second GEO angle for a second PU of the video data to be 20;

determine a second displacement value based on the second distance index; and

decode the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 18.

12. The device of claim 7 , wherein the one or more processors are further configured to:

determine a second distance index associated with a second GEO angle for a second PU of the video data to be 28;

determine a second displacement value based on the second distance index; and

decode the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 30.

13. The device of claim 7 , further comprising:

a display coupled to the one or more processors, the display being configured to display the video data.

14. A method of encoding video data, the method comprising:

determining a first geometric partition mode (GEO) angle for a first prediction unit (PU) of the video data to be 45 degrees;

based on the first GEO angle being 45 degrees, determining a first distance index for the first PU to be 4;

determining a first displacement value indicative of a distance from a center of the first PU to a GEO split, the first displacement value being associated with the first distance index; and

encoding the first PU based on the first GEO angle and the first displacement value,

wherein the first displacement value is half of a displacement value associated with a distance index of 2.

15. The method of claim 14 , wherein determining the first displacement value comprises looking up the first distance index of 4 in a look-up table.

16. The method of claim 14 , wherein the first displacement value is associated with a quantization level of a cosine of the first GEO angle.

17. The method of claim 14 , further comprising:

determining a second GEO angle for a second PU of the video data to be 135 degrees;

based on the second GEO angle being 135 degrees, determining a second distance index for the second PU to be 12;

determining a second displacement value based on the second distance index; and

encoding the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 14.

18. The method of claim 14 , further comprising:

determining a second GEO angle for a second PU of the video data to be 225 degrees;

based on the second GEO angle being 225 degrees, determining a second distance index for the second PU to be 20;

determining a second displacement value based on the second distance index; and

encoding the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 18.

19. The method of claim 14 , further comprising:

determining a second GEO angle for a second PU of the video data to be 315 degrees;

based on the second GEO angle being 315 degrees, determining a second distance index for the second PU to be 28;

determining a second displacement value based on the second distance index; and

encoding the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 30.

20. A device for encoding video data, the device comprising:

a memory configured to store the video data; and

one or more processors implemented in circuitry and coupled to the memory, the one or more processors being configured to:

determine a first geometric partition mode (GEO) angle for a first prediction unit (PU) of the video data to be 45 degrees;

based on the first GEO angle being 45 degrees, determine a first distance index for the first PU to be 4;

determining a first displacement value indicative of a distance from a center of the first PU to a GEO split, the first displacement value being associated with the first distance index; and

encode the first PU based on the first GEO angle and the first displacement value,

wherein the first displacement value is half of a displacement value associated with a distance index of 2.

21. The device of claim 20 , wherein the one or more processors determine the first displacement value by looking up the first distance index of 4 in a look-up table.

22. The device of claim 20 , wherein the first displacement value is associated with a quantization level of a cosine of the first GEO angle.

23. The device of claim 20 , wherein the one or more processors are further configured to:

determine a second GEO angle for a second PU of the video data to be 135 degrees;

based on the second GEO angle being 135 degrees, determine a second distance index for the second PU to be 12;

determine a second displacement value based on the second distance index; signaling the second distance index; and

encode the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 14.

24. The device of claim 20 , wherein the one or more processors are further configured to:

determine a second GEO angle for a second PU of the video data to be 225 degrees;

based on the second GEO angle being 225 degrees, determine a second distance index for the second PU to be 20;

determine a second displacement value based on the second distance index; and

encode the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 18.

25. The device of claim 20 , wherein the one or more processors are further configured to:

determine a second GEO angle for a second PU of the video data to be 315 degrees;

based on the second GEO angle being 315 degrees, determine a second distance index for the second PU to be 28;

determine a second displacement value based on the second distance index; and

encode the second PU based on the second GEO angle and the second displacement value,

wherein the second displacement value is half a displacement value associated with a distance index of 30.

26. The device of claim 20 , further comprising:

a camera coupled to the one or more processors, the camera being configured to capture the video data.