FN               1274 libavcodec/ac3enc.c     IComplex in[FN], in1[FN];
FN               1280 libavcodec/ac3enc.c     for(i=0;i<FN;i++) {
FN               1288 libavcodec/ac3enc.c     for(k=0;k<FN;k++) {
FN               1291 libavcodec/ac3enc.c         for(n=0;n<FN;n++) {
FN               1292 libavcodec/ac3enc.c             a = -2 * M_PI * (n * k) / FN;
FN               1297 libavcodec/ac3enc.c                k, in[k].re, in[k].im, sum_re / FN, sum_im / FN);