static void noise_scale(int *coefs, int scale, int band_energy, int len) { int ssign = scale < 0 ? -1 : 1; int s = FFABS(scale); unsigned int round; int i, out, c = exp2tab[s & 3]; int nlz = 0; while (band_energy > 0x7fff) { band_energy >>= 1; nlz++; } c /= band_energy; s = 21 + nlz - (s >> 2); if (s > 0) { round = 1 << (s-1); for (i=0; i<len; i++) { out = (int)(((int64_t)coefs[i] * c) >> 32); coefs[i] = ((int)(out+round) >> s) * ssign; } } else { s = s + 32; round = 1 << (s-1); for (i=0; i<len; i++) { out = (int)((int64_t)((int64_t)coefs[i] * c + round) >> s); coefs[i] = out * ssign; } } }