A method for filtering includes determining, by a processor, a first offset value by applying a non linear mapping based filter to first reconstructed samples at a first node along a loop filter chain that includes a plurality of video filters. The method further includes applying, by the processor, the first offset value to an intermediate reconstructed sample at a second node along the loop filter chain to generate a second reconstructed sample, wherein the second node is one of an input node of the loop filter chain or an output node of the loop filter chain.