added a TODO comment

src/buffer.cpp

@@ -233,6 +233,21 @@ void CNetBufWithStats::UpdateAutoSetting()
     // the current jitter buffer size significantly.
     // For the initialization phase, use lower weight values to get faster
     // adaptation.
+
+
+// TODO The alpha values are not correct if we use larger buffer sizes like, e.g., 512 samples.
+// TODO How does the buffer knows which buffer size is used since it only works on coded bytes
+//      from the OPUS codec?
+// Possible calculation:
+// alpha values at N = 128 samples block size: up   = 0.999995
+//                                             down = 0.9999
+// with R = 1 / N * ( ( 1 - alpha ) / alpha )
+//                                         ->  R_up   = 3.9062695313732476e-8
+//                                         ->  R_down = 7.813281328131953e-7
+// Calculate the new alpha for the new block size N_new:
+// alpha_new = 1 / N_new / ( R_x + 1 / N_new )
+
+
     double dWeightUp              = 0.999995;
     double dWeightDown            = 0.9999;
     const double dHysteresisValue = 0.1;
@@ -244,6 +259,9 @@ void CNetBufWithStats::UpdateAutoSetting()
         iInitCounter--;
 
         // overwrite weigth values with lower values
+
+// TODO see above calculation
+
         dWeightUp   = 0.9995;
         dWeightDown = 0.999;
     }