Method and apparatus for adaptive loop filter processing of reconstructed video

Method and apparatus for video coding using non-local, high-degree or residual taps. According to one method, a current filtered output is derived from an ALF for a current sample in the current block. The ALF comprises at least one non-local input term corresponding to a pre-SAO (Sample Adaptive Offset) reconstructed sample of the current sample and/or one or more neighbouring samples of the current sample, or a filter output, from one of a fixed filter sets, of the current sample and/or said one or more neighbouring samples of the current sample. According to another method, the ALF comprises at least one reconstructed sample from a non-adjacent block. According to yet another method, the ALF comprises at least one residual input term.