the call to checkVideoPresence was made in the first call to SwitchSt…

…ream, done in composeStreams. The problem is, at this specific time, no StreamProcessor has been built. The return value of this function is always false.

src/streaming/controllers/StreamController.js

@@ -298,7 +298,6 @@ function StreamController() {
         if (oldStream) oldStream.deactivate();
         activeStream = newStream;
         playbackController.initialize(activeStream.getStreamInfo());
-        videoTrackDetected = checkVideoPresence();
 
         //TODO detect if we should close and repose or jump to activateStream.
         openMediaSource(seekTime);
@@ -343,6 +342,8 @@ function StreamController() {
                 });
                 playbackController.seek(startTime); //seek to period start time
             }
+        }else {
+            videoTrackDetected = checkVideoPresence();
         }
 
         activeStream.startEventController();