Lines Matching refs:n4
49 int n, n4, i;
57 n4 = n >> 2;
69 s->tsin = s->tcos + n4;
80 theta = 1.0 / 8.0 + (scale < 0 ? n4 : 0);
82 for(i=0;i<n4;i++) {
101 int k, n8, n4, n2, n, j;
110 n4 = n >> 2;
116 for(k = 0; k < n4; k++) {
146 int n4 = n >> 2;
148 ff_imdct_half_c(s, output+n4, input);
150 for(k = 0; k < n4; k++) {
163 int i, j, n, n8, n4, n2, n3;
172 n4 = n >> 2;
174 n3 = 3 * n4;
179 im = RSCALE(-input[n4+2*i] + input[n4-1-2*i]);