Added track-reselection to DTSC output

src/output/output_dtsc.cpp

@@ -52,6 +52,25 @@ namespace Mist {
   }
 
   void OutDTSC::sendNext(){
+    //If there are now more selectable tracks, select the new track and do a seek to the current timestamp
+    //Set sentHeader to false to force it to send init data
+    if (selectedTracks.size() < 2){
+      static unsigned long long lastMeta = 0;
+      if (Util::epoch() > lastMeta + 5){
+        lastMeta = Util::epoch();
+        updateMeta();
+        if (myMeta.tracks.size() > 1){
+          size_t prevTrackCount = selectedTracks.size();
+          selectDefaultTracks();
+          if (selectedTracks.size() > prevTrackCount){
+            INFO_MSG("Picked up new track - selecting it and resetting state.");
+            sentHeader = false;
+            initialSeek();
+            return;
+          }
+        }
+      }
+    }
     myConn.SendNow(thisPacket.getData(), thisPacket.getDataLen());
   }