Use rate_ratio for track timing

This prevents wild numbers from appearing during scratching under vinyl control.

src/engine/enginebuffer.cpp

@@ -1380,7 +1380,7 @@ void EngineBuffer::updateIndicators(double speed, int iBufferSize) {
     const double fFractionalPlaypos = fractionalPlayposFromAbsolute(m_playPosition);
 
     const double tempoTrackSeconds = m_trackEndPositionOld.value() /
-            m_trackSampleRateOld / m_tempo_ratio_old;
+            m_trackSampleRateOld / getRateRatio();
     if (speed > 0 && fFractionalPlaypos == 1.0) {
         // At Track end
         speed = 0;