Video encoding and decoding methods and multimedia data processing methods

Abstract

The invention relates to a design that balances forecasting in multiple reference streams, hill and sea level partitioning, and hill and sea level variable processing or video information processing. The invention relates to an example method, which includes steps to retrieve data blocks of a video frame, data blocks with adjacent reference lines and one or more non-adjacent reference lines in the video frame; determine whether one of one or more non-adjacent reference lines should be used for forecasting in the data block; when adjacent reference lines are used for forecasting in the data block, select the target transformation factor from the first set of transformation factors to the transformed data block; And when non-contiguous reference lines are used for forecasting within the data set, the shift variable selection is transferred from the second set of shift variable values ​​to the ranged data set.