A method of decoding a bitstream by an electronic device is provided. The electronic device receives the bitstream. In addition, the electronic device determines, from the bitstream, a maximum constraint indication used for determining a maximum value of a bit-depth indication sps_bitdepth_minus8 included in a sequence parameter set (SPS) of the bitstream when the maximum constraint indication is a maximum bit-depth constraint indication. The maximum constraint indication does not impose a constraint on the maximum value of the bit-depth indication sps_bitdepth_minus8 when the maximum constraint indication is equal to zero.