77   mad_fixed_t sample;  in I_sample()  local
79   sample = mad_bit_read(ptr, nb);  in I_sample()
83   sample ^= 1 << (nb - 1);  in I_sample()
84   sample |= -(sample & (1 << (nb - 1)));  in I_sample()
86   sample <<= MAD_F_FRACBITS - (nb - 1);  in I_sample()
92   sample += MAD_F_ONE >> (nb - 1);  in I_sample()
94   return mad_f_mul(sample, linear_table[nb - 2]);  in I_sample()
195 	mad_fixed_t sample;  in mad_layer_I()  local
197 	sample = I_sample(&stream->ptr, nb);  in mad_layer_I()
201 	    mad_f_mul(sample, sf_table[scalefactor[ch][sb]]);  in mad_layer_I()
285   unsigned int nb, s, sample[3];  in II_samples()  local
295       sample[s] = c % nlevels;  in II_samples()
303       sample[s] = mad_bit_read(ptr, nb);  in II_samples()
311     requantized  = sample[s] ^ (1 << (nb - 1));  in II_samples()