159   // Mix front LR into center.  in CreateTransformationMatrix()
168     Mix(LEFT, CENTER, scale);  in CreateTransformationMatrix()
169     Mix(RIGHT, CENTER, scale);  in CreateTransformationMatrix()
172   // Mix center into front LR.  in CreateTransformationMatrix()
173   if (IsUnaccounted(CENTER)) {  in CreateTransformationMatrix()
177     MixWithoutAccounting(CENTER, LEFT, scale);  in CreateTransformationMatrix()
178     Mix(CENTER, RIGHT, scale);  in CreateTransformationMatrix()
181   // Mix back LR into: side LR || back center || front LR || front center.  in CreateTransformationMatrix()
190       // Mix back LR into back center.  in CreateTransformationMatrix()
198       // Mix back LR into front center.  in CreateTransformationMatrix()
199       Mix(BACK_LEFT, CENTER, ChannelMixer::kHalfPower);  in CreateTransformationMatrix()
200       Mix(BACK_RIGHT, CENTER, ChannelMixer::kHalfPower);  in CreateTransformationMatrix()
204   // Mix side LR into: back LR || back center || front LR || front center.  in CreateTransformationMatrix()
213       // Mix side LR into back center.  in CreateTransformationMatrix()
221       // Mix side LR into front center.  in CreateTransformationMatrix()
222       Mix(SIDE_LEFT, CENTER, ChannelMixer::kHalfPower);  in CreateTransformationMatrix()
223       Mix(SIDE_RIGHT, CENTER, ChannelMixer::kHalfPower);  in CreateTransformationMatrix()
227   // Mix back center into: back LR || side LR || front LR || front center.  in CreateTransformationMatrix()
230       // Mix back center into back LR.  in CreateTransformationMatrix()
234       // Mix back center into side LR.  in CreateTransformationMatrix()
238       // Mix back center into front LR.  in CreateTransformationMatrix()
243       // Mix back center into front center.  in CreateTransformationMatrix()
245       Mix(BACK_CENTER, CENTER, ChannelMixer::kHalfPower);  in CreateTransformationMatrix()
249   // Mix LR of center into: front LR || front center.  in CreateTransformationMatrix()
252       // Mix LR of center into front LR.  in CreateTransformationMatrix()
256       // Mix LR of center into front center.  in CreateTransformationMatrix()
257       Mix(LEFT_OF_CENTER, CENTER, ChannelMixer::kHalfPower);  in CreateTransformationMatrix()
258       Mix(RIGHT_OF_CENTER, CENTER, ChannelMixer::kHalfPower);  in CreateTransformationMatrix()
262   // Mix LFE into: front center || front LR.  in CreateTransformationMatrix()
264     if (!HasOutputChannel(CENTER)) {  in CreateTransformationMatrix()
269       // Mix LFE into front center.  in CreateTransformationMatrix()
270       Mix(LFE, CENTER, ChannelMixer::kHalfPower);  in CreateTransformationMatrix()