* Add OptionPitchHighConsistency

src/StretcherImpl.cpp

@@ -524,7 +524,9 @@ RubberBandStretcher::Impl::configure()
         m_studyFFT->initFloat();
     }
 
-    if (m_pitchScale != 1.0 || m_realtime) {
+    if (m_pitchScale != 1.0 ||
+        (m_options & OptionPitchHighConsistency) ||
+        m_realtime) {
 
         for (size_t c = 0; c < m_channels; ++c) {
 
@@ -708,7 +710,9 @@ RubberBandStretcher::Impl::setPitchOption(Options options)
 
     Options prior = m_options;
 
-    int mask = (OptionPitchHighQuality | OptionPitchHighSpeed);
+    int mask = (OptionPitchHighQuality |
+                OptionPitchHighSpeed |
+                OptionPitchHighConsistency);
     m_options &= ~mask;
     options &= mask;
     m_options |= options;
@@ -989,8 +993,6 @@ RubberBandStretcher::Impl::process(const float *const *input, size_t samples, bo
 
     while (!allConsumed) {
 
-//        cerr << "process looping" << endl;
-
 //#ifndef NO_THREADING
 //        if (m_threaded) {
 //            pthread_mutex_lock(&m_inputProcessedMutex);
@@ -1052,6 +1054,9 @@ RubberBandStretcher::Impl::process(const float *const *input, size_t samples, bo
             }
 */
         }
+
+        if (!allConsumed) cerr << "process looping" << endl;
+
     }
     
 //    cerr << "process returning" << endl;

src/StretcherProcess.cpp

@@ -110,6 +110,8 @@ RubberBandStretcher::Impl::resampleBeforeStretching() const
 
     if (m_options & OptionPitchHighQuality) {
         return (m_pitchScale < 1.0); // better sound
+    } else if (m_options & OptionPitchHighConsistency) {
+        return false;
     } else {
         return (m_pitchScale > 1.0); // better performance
     }
@@ -145,6 +147,8 @@ RubberBandStretcher::Impl::consumeChannel(size_t c, const float *input,
         }
 
 
+//        std::cerr << "resampling on INPUT" << std::endl;
+
         toWrite = cd.resampler->resample(&input,
                                          &cd.resamplebuf,
                                          samples,
@@ -1009,7 +1013,9 @@ RubberBandStretcher::Impl::writeChunk(size_t channel, size_t shiftIncrement, boo
 
     bool resampledAlready = resampleBeforeStretching();
 
-    if (!resampledAlready && m_pitchScale != 1.0 && cd.resampler) {
+    if (!resampledAlready &&
+        (m_pitchScale != 1.0 || m_options & OptionPitchHighConsistency) &&
+        cd.resampler) {
 
         size_t reqSize = int(ceil(si / m_pitchScale));
         if (reqSize > cd.resamplebufSize) {
@@ -1024,6 +1030,8 @@ RubberBandStretcher::Impl::writeChunk(size_t channel, size_t shiftIncrement, boo
         }
 
 
+//        std::cerr << "resampling on OUTPUT" << std::endl;
+        
         size_t outframes = cd.resampler->resample(&cd.accumulator,
                                                   &cd.resamplebuf,
                                                   si,