MPEG field data-driven display
View Patent ↗A system and method that support display of video fields using related data encoded in data structures. Each data structure is associated with one video field and contains all the information associated with the display of the video field. The data structure is encoded with the video field that is displayed exactly one field prior to the field associated with the data structure. In an embodiment of the present invention, the data structure contains all the information associated with the display of a video field, regardless of whether certain data changes from one field to the next.
1. A method that prepares encoded video fields for display, the method comprising:
decoding the video fields, with a video decoder;
decoding non-pixel data that are uniquely associated with the video fields;
gathering the decoded non-pixel data uniquely associated with each one of the video fields;
packaging the gathered decoded non-pixel data uniquely associated with each one of the video fields in data structures, wherein each data structure is associated with one video field; and
providing the data structures packaging the gathered non-pixel data associated with each one of the video fields to a display controller at least one field period prior to displaying each one of the video fields that the data structures are associated with.
2. The method according to claim 1 wherein the method further comprises:
encoding each data structure with a video field; and sending the video fields to a display in the order in which the video fields are to be displayed.
3. The method according to claim 2 wherein each data structure is provided to the display controller with a video field that is fully displayed at least one field before the video field with which the data structure is associated.
4. The method according to claim 3 wherein the at least one field before the video field with which the data structure is associated comprises exactly one field before the video field with which the data structure is associated.
5. The method according to claim 2 wherein the display decodes each video field and data structure.
6. The method according to claim 2 wherein each data structure contains properties of the field with which the data structure is associated.
7. The method according to claim 6 wherein the display displays each field using the field's properties.
8. The method of claim 1 , wherein the non-pixel data information comprises scan type information.
9. The method of claim 1 , wherein the non-pixel data information comprises chrominance interpolation mode information.
10. The method of claim 1 , wherein the non-pixel data information comprises size information.
11. The method of claim 1 , wherein the non-pixel data information comprises aspect ratio.
12. The method of claim 1 , wherein the non-pixel data information comprises source polarity.
13. A computer readable medium encoded with a computer program comprising computer executable instruction for performing a method for preparing encoded video fields for display, comprising:
decoding the video fields;
decoding non-pixel data associated with the video fields;
gathering the non-pixel data associated with each one of the video fields;
packaging the gathered non-pixel data associated with each one of the video fields in data structures, wherein each data structure is associated with one video field; and
providing the data structures packaging the gathered non-pixel data associated with each one of the video fields to a display controller at least one field period prior to displaying each one of the video fields that the data structures are associated with.
14. The computer readable medium according to claim 13 wherein the method comprises encoding each data structure with a video field; and sending the video fields to a display in the order in which the video fields are to be displayed.
15. The computer readable medium according to claim 14 wherein the method comprises encoding each data structure with a video field that is decoded at least one field before the video field with which the data structure is associated.
16. The computer readable medium according to claim 15 wherein the at least one field before the video field with which the data structure is associated comprises exactly one field before the video field with which the data structure is associated.
17. The computer readable medium according to claim 14 wherein the method further comprises decoding each video field and data structure.
18. The computer readable medium according to claim 14 wherein each data structure contains properties of the field with which the field is associated.
19. The computer readable medium according to claim 18 wherein the method further comprises displaying each field using the field's properties.