Render-orientation information in video bitstream

1. A method of video decoding comprising:

retrieving, by a decoding device, from a Supplementary Enhancement Information (SEI) message included in a coded video bitstream, orientation information relating to at least all samples of a first coded picture and at least all samples of a second coded picture after decoding;

wherein the orientation information comprises a bit indicating a vertical flip and persistence information pertaining to persistence of the orientation information.

2. The method of claim 1 , further comprising: using the orientation information for rendering at least one reconstructed video picture.

3. The method of claim 1 , wherein the orientation information further comprises an integer number, indicating a rotation angle measured in degrees or fractions thereof.

4. The method of claim 1 , wherein the persistence information comprises a number indicating a persistency measured in a picture order count interval.

5. The method of claim 3 , wherein the integer number comprises at least 9 bits.

6. The method of claim 1 , wherein the persistence information comprises a binary coded number indicating the persistence of the orientation information.

7. The method of claim 1 , further comprising:

retrieving, by the decoding device, from a second SEI message included in the coded video bitstream, a second orientation information relating to at least all samples of a third coded picture after decoding;

wherein the second orientation information replaces the orientation information, and

wherein the third picture is located after the first and second pictures in the coded video bitstream.

8. A system for video decoding comprising:

an orientation decoder configured to extract from a coded video bitstream a Supplementary Enhancement Information (SEI) message comprising orientation information, the orientation information relating to at least all samples of a first coded picture and at least all samples of a second coded picture after decoding;

wherein the orientation information comprises a bit indicating a vertical flip and persistence information pertaining to persistence of the orientation information.

9. The system of claim 8 , wherein the orientation decoder is coupled to a renderer configured to render at least one reconstructed picture according to the orientation information extracted and decoded from the bitstream.

10. The system of claim 9 , wherein the renderer comprises a Graphics Processing Unit.

11. The system of claim 8 , wherein:

the orientation decoder is further configured to extract from the coded video bitstream a second SEI message comprising a second orientation information and decode the second orientation information, the second orientation information relating to least all samples of a third coded picture after decoding; wherein the second orientation information replaces the orientation information, and

wherein the third picture is located after the first and second pictures in the coded video bitstream.

12. A non-transitory computer readable medium comprising a set of executable instructions to direct a processor to perform the method of claim 1 .

13. A non-transitory computer readable medium comprising a set of executable instructions to direct a processor to perform the method of claim 2 .

14. A non-transitory computer readable medium comprising a set of executable instructions to direct a processor to perform the method of claim 3 .

15. A non-transitory computer readable medium comprising a set of executable instructions to direct a processor to perform the method of claim 4 .