Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes processing circuitry. The processing circuitry reconstructs a first sample in a video carried in a coded video bitstream based on a non linear mapping based filter with a first filter shape configuration. Then, the processing circuitry determines a switch from the first filter shape configuration to a second filter shape configuration, and reconstructs a second sample in the video based on the non linear mapping based filter with the second filter shape configuration.