comparison audioio/AudioCallbackPlaySource.cpp @ 158:72495c4cd315

* Add vestigial Activity Log

     bool changed = !m_playing;
     m_lastRetrievalTimestamp = 0;
     m_lastCurrentFrame = 0;
     m_playing = true;
     m_condition.wakeAll();
-    if (changed) emit playStatusChanged(m_playing);
+    if (changed) {
+        emit playStatusChanged(m_playing);
+        emit activity(tr("Play from %1").arg
+                      (RealTime::frame2RealTime
+                       (m_playStartFrame, m_sourceSampleRate).toText().c_str()));
+    }
 }
 
 void
 AudioCallbackPlaySource::stop()
 {
     bool changed = m_playing;
     m_playing = false;
     m_condition.wakeAll();
     m_lastRetrievalTimestamp = 0;
+    if (changed) {
+        emit playStatusChanged(m_playing);
+        emit activity(tr("Stop at %1").arg
+                      (RealTime::frame2RealTime
+                       (m_lastCurrentFrame, m_sourceSampleRate).toText().c_str()));
+    }
     m_lastCurrentFrame = 0;
-    if (changed) emit playStatusChanged(m_playing);
 }
 
 void
 AudioCallbackPlaySource::selectionChanged()
 {

 {
     m_stretchRatio = factor;
 
     if (m_timeStretcher || (factor == 1.f)) {
         // stretch ratio will be set in next process call if appropriate
-        return;
     } else {
         m_stretcherInputCount = getTargetChannelCount();
         RubberBandStretcher *stretcher = new RubberBandStretcher
             (getTargetSampleRate(),
              m_stretcherInputCount,

             m_stretcherInputSizes[c] = 16384;
             m_stretcherInputs[c] = new float[m_stretcherInputSizes[c]];
         }
         m_monoStretcher = monoStretcher;
         m_timeStretcher = stretcher;
-        return;
-    }
+    }
+
+    emit activity(tr("Change time-stretch factor to %1").arg(factor));
 }
 
 size_t
 AudioCallbackPlaySource::getSourceSamples(size_t ucount, float **buffer)
 {