Patent ID: 9357229
Filing Date: 2016-05-31
CPC Classification: H04N

Claim Text:
1. A method of coding video data comprising: storing a first reference picture list and a second reference picture list, wherein the first and second reference picture lists include identifiers for identical reference pictures; coding a video block of a video frame designated as a generalized P/B (GPB) frame using bidirectional prediction with a first motion vector from a first reference picture in the first reference picture list and a second motion vector from a second reference picture in the second reference picture list; predicting the first motion vector for the video block based on a first motion predictor generated from a third motion vector of a neighboring video block, wherein the third motion vector points to the first reference picture in the first reference picture list and is stored for both the first reference picture list and the second reference picture list, and wherein the first motion predictor is generated from the third motion vector and the first reference picture in any of the first reference picture list and the second reference picture list; predicting the second motion vector for the video block based on the first motion vector for the video block; and jointly coding the first motion vector and the second motion vector for the video block, wherein jointly coding the first motion vector and the second motion vector comprises: