Method and apparatus for sub-picture based raster scanning coding order

1. A method for sub-picture based raster scanning coding order, comprising:

dividing a picture into a plurality of non overlapping blocks;

grouping the non overlapping blocks into a plurality of sub-pictures with sub-picture boundaries;

coding of a first of the plurality of the sub-pictures is performed on a first processing core and coding of a second of the plurality of the sub-pictures is performed on a second processing core wherein the coding of the first sub-picture and the second sub-pictures is independent around the sub-picture boundaries, and wherein the coding of the first sub-picture and the second sub-picture is performed in parallel; and

encoding the plurality of sub-pictures sequentially into a bit stream upon completion of the coding wherein the non overlapping blocks in each of said plurality of sub-pictures is encoded in a raster scan order.

2. The method of claim 1 , wherein the number of non overlapping blocks in each of said plurality of sub-pictures is approximately the same.

3. A method for sub-picture based raster scanning coding order, comprising:

partitioning a picture into a plurality of sub-pictures with sub-picture boundaries;

dividing the sub-pictures into a plurality non overlapping blocks;

coding of a first of the plurality of the sub-pictures is performed on a first processing core and coding of a second of the plurality of the sub-pictures is performed on a second processing core wherein the coding of the first sub-picture and the second sub-pictures is independent around the sub-picture boundaries, and wherein the coding of the first sub-picture and the second sub-picture is performed in parallel; and

encoding the plurality of sub-pictures sequentially into a bit stream upon completion of the coding wherein the non overlapping blocks in each of said plurality of sub-pictures is encoded in a raster scan order.

4. The method of claim 3 , wherein the number of non overlapping blocks in each of said plurality of sub-pictures is approximately the same.

5. A method for sub-picture based raster scanning coding order, comprising:

dividing a picture into a plurality of non overlapping blocks;

grouping the non overlapping blocks into a plurality of sub-pictures with sub-picture boundaries;

coding of a first of the plurality of the sub-pictures is performed on a first processing core and coding of a second of the plurality of the sub-pictures is performed on a second processing core wherein the coding of the first sub-picture and the second sub-pictures is independent around the sub-picture boundaries;

coding of a third of the plurality of the sub-pictures is performed on a third processing core and coding of a fourth of the plurality of the sub-pictures is performed on a fourth processing core wherein the coding of the third sub-picture and the fourth sub-pictures is independent around the sub-picture boundaries, and wherein the coding of the first sub-picture, the second sub-picture, the third sub-picture and the fourth sub-picture are all performed in parallel; and

encoding the plurality of sub-pictures sequentially into a bit stream upon completion of the coding wherein each of said plurality of sub-pictures is encoded in a raster scan order.

6. The method of claim 5 , wherein the number of non overlapping blocks in each of said plurality of sub-pictures is approximately the same.

7. A method for sub-picture based raster scanning coding order, comprising:

partitioning a picture into a plurality of sub-pictures with sub-picture boundaries;

dividing the sub-pictures into a plurality non overlapping blocks;

coding of a first of the plurality of the sub-pictures is performed on a first processing core and coding of a second of the plurality of the sub-pictures is performed on a second processing core wherein the coding of the first sub-picture and the second sub-pictures is independent around the sub-picture boundaries;

coding of a third of the plurality of the sub-pictures is performed on a third processing core and coding of a fourth of the plurality of the sub-pictures is performed on a fourth processing core wherein the coding of the third sub-picture and the fourth sub-pictures is independent around the sub-picture boundaries, and wherein the coding of the first sub-picture, the second sub-picture, the third sub-picture and the fourth sub-picture are all performed in parallel; and

encoding the plurality of sub-pictures sequentially into a bit stream upon completion of the coding wherein each of said plurality of sub-pictures is encoded in a raster scan order.

8. The method of claim 7 , wherein the number of non overlapping blocks in each of said plurality of sub-pictures is approximately the same.

9. A method for sub-picture based raster scanning coding order, comprising:

providing a picture partitioned into a plurality of sub-pictures wherein each sub-picture is divided into a plurality of non overlapping blocks;

coding of a first of the plurality of the sub-pictures is performed on a first processing core and coding of a second of the plurality of the sub-pictures is performed on a second processing core wherein the coding of the first sub-picture and the second sub-pictures is independent around the sub-picture boundaries, and wherein the coding of the first sub-picture and the second sub-picture is performed in parallel; and

encoding the plurality of sub-pictures sequentially into a bit stream upon completion of the coding wherein each of said plurality of sub-pictures is encoded in a raster scan order.

10. The method of claim 9 , wherein the number of non overlapping blocks in each of said plurality of sub-pictures is approximately the same.