Lines Matching refs:n4
45 int n, n4, i;
53 n4 = n >> 2;
65 s->tsin = s->tcos + n4;
76 theta = 1.0 / 8.0 + (scale < 0 ? n4 : 0);
78 for(i=0;i<n4;i++) {
97 int k, n8, n4, n2, n, j;
106 n4 = n >> 2;
112 for(k = 0; k < n4; k++) {
142 int n4 = n >> 2;
144 ff_imdct_half_c(s, output+n4, input);
146 for(k = 0; k < n4; k++) {
159 int i, j, n, n8, n4, n2, n3;
168 n4 = n >> 2;
170 n3 = 3 * n4;
175 im = RSCALE(-input[n4+2*i] + input[n4-1-2*i]);