Lines Matching refs:n4
46 int n, n4, i;
54 n4 = n >> 2;
66 s->tsin = s->tcos + n4;
77 theta = 1.0 / 8.0 + (scale < 0 ? n4 : 0);
79 for(i=0;i<n4;i++) {
103 int k, n8, n4, n2, n, j;
112 n4 = n >> 2;
118 for(k = 0; k < n4; k++) {
148 int n4 = n >> 2;
150 ff_imdct_half_c(s, output+n4, input);
152 for(k = 0; k < n4; k++) {
165 int i, j, n, n8, n4, n2, n3;
174 n4 = n >> 2;
176 n3 = 3 * n4;
181 im = RSCALE(-input[n4+2*i], + input[n4-1-2*i]);