Lines Matching refs:inverse
144 static int split_radix_permutation(int i, int n, int inverse)
149 if(!(i&m)) return split_radix_permutation(i, m, inverse)*2;
151 if(inverse == !(i&m)) return split_radix_permutation(i, m, inverse)*4 + 1;
152 else return split_radix_permutation(i, m, inverse)*4 - 1;
181 s->revtab[-split_radix_permutation(i + k, n, s->inverse) & (n - 1)] =
188 s->revtab[-split_radix_permutation(i + k, n, s->inverse) & (n - 1)] = j;
194 av_cold int ff_fft_init(FFTContext *s, int nbits, int inverse)
218 s->inverse = inverse;
258 k = -split_radix_permutation(i, n, s->inverse) & (n - 1);\
267 k = -split_radix_permutation(i, n, s->inverse) & (n - 1);\