77                              const int centers[NUM_MB_SEGMENTS],  in SetSegmentAlphas()
80   int min = centers[0], max = centers[0];  in SetSegmentAlphas()
85       if (min > centers[n]) min = centers[n];  in SetSegmentAlphas()
86       if (max < centers[n]) max = centers[n];  in SetSegmentAlphas()
92     const int alpha = 255 * (centers[n] - mid) / (max - min);  in SetSegmentAlphas()
93     const int beta = 255 * (centers[n] - min) / (max - min);  in SetSegmentAlphas()
149   int centers[NUM_MB_SEGMENTS];  in AssignSegments()  local
170     centers[k] = min_a + (n * range_a) / (2 * nb);  in AssignSegments()
185         while (n + 1 < nb && abs(a - centers[n + 1]) < abs(a - centers[n])) {  in AssignSegments()
202         displaced += abs(centers[n] - new_center);  in AssignSegments()
203         centers[n] = new_center;  in AssignSegments()
217     mb->alpha_ = centers[map[alpha]];  // for the record.  in AssignSegments()
225   SetSegmentAlphas(enc, centers, weighted_average);  // pick some alphas.  in AssignSegments()