Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video decoding. In one method, a decoder determines a coding bit depth for at least one sample in a bitstream; the decoder determines a value of a first Sequence Parameter Set (SPS) flag for the at least one sample; and the decoder further determines a second SPS flag for the at least one sample based on the value of the first SPS flag in combination of a coding bit depth for the at least one sample.