SW-546: Explain the assumption for the first spectral frame

RTCP/Cobalt/OutputProc/src/TBB_Dipole.cc

@@ -207,7 +207,7 @@ namespace LOFAR
                  * Then we can write flags while data comes in. Else, leave
                  * as-is.
                  */
-                if(doTransient())
+                if(transientMode == true)
                 {
                     itsDipoleDataset()->flagOffsets().create(
                         itsDumpInfo.itsFlagOffsets.size()).set(
@@ -407,6 +407,12 @@ namespace LOFAR
          */
         else if(currentSubBand.isInitialised == false)
         {
+            /**
+             * Assume that the first ever received frame for any sub-band is
+             * the very first frame that got ever sent for that sub-band.  This
+             * is the only assumption made about the order of frames sent by
+             * TBB.
+             */
             currentSubBand.time0 = frame.header.time;
             currentSubBand.slice0 = sliceNr;
 
@@ -446,8 +452,7 @@ namespace LOFAR
             currentSubBand.dataSet->timeResolution().value =
                 static_cast< double >(SPECTRAL_TRANSFORM_SIZE) /
                     (frame.header.sampleFreq * 1000000.0);
-            currentSubBand.dataSet->timeResolutionUnit().value =
-                "s";
+            currentSubBand.dataSet->timeResolutionUnit().value = "s";
             currentSubBand.dataSet->bandwidth().value =
                 static_cast< double >(frame.header.sampleFreq) * 1000000.0 /
                     static_cast< double >(SPECTRAL_TRANSFORM_SIZE);
@@ -483,7 +488,7 @@ namespace LOFAR
                 << currentSubBand.slice0
                 << ", HDF5 SubbandDataset name = "
                 << currentSubBand.dataSet->name()
-                << " , dipole = "
+                << ", dipole = "
                 << itsDipoleGroup()->name()
                 << ", station id = "
                 << static_cast< uint32_t >(frame.header.stationID)