80                              const int centers[NUM_MB_SEGMENTS],  in SetSegmentAlphas()
83   int min = centers[0], max = centers[0];  in SetSegmentAlphas()
88       if (min > centers[n]) min = centers[n];  in SetSegmentAlphas()
89       if (max < centers[n]) max = centers[n];  in SetSegmentAlphas()
95     const int alpha = 255 * (centers[n] - mid) / (max - min);  in SetSegmentAlphas()
96     const int beta = 255 * (centers[n] - min) / (max - min);  in SetSegmentAlphas()
148   int centers[NUM_MB_SEGMENTS];  in AssignSegments()  local
165     centers[k++] = min_a + (n * range_a) / (2 * nb);  in AssignSegments()
180         while (n < nb - 1 && abs(a - centers[n + 1]) < abs(a - centers[n])) {  in AssignSegments()
197         displaced += abs(centers[n] - new_center);  in AssignSegments()
198         centers[n] = new_center;  in AssignSegments()
212     mb->alpha_ = centers[map[alpha]];  // for the record.  in AssignSegments()
220   SetSegmentAlphas(enc, centers, weighted_average);  // pick some alphas.  in AssignSegments()