comparison audioio/AudioCallbackPlaySource.cpp @ 39:4ed2448582cc

* Switch from fftw3 to fftw3f.  I think the efficiency improvement is probably
  worth the lower precision, although I ought to do a few more tests.

 	m_stretcher[ch] = StretcherBuffer
 	    //!!! We really need to measure performance and work out
 	    //what sort of quality level to use -- or at least to
 	    //allow the user to configure it
 	    (new IntegerTimeStretcher(factor, blockSize, 128),
-	     new double[blockSize * factor]);
-    }
-    m_stretchInputBuffer = new double[blockSize];
+	     new float[blockSize * factor]);
+    }
+    m_stretchInputBuffer = new float[blockSize];
 }
 
 AudioCallbackPlaySource::TimeStretcherData::~TimeStretcherData()
 {
 //    std::cerr << "TimeStretcherData::~TimeStretcherData" << std::endl;

 AudioCallbackPlaySource::TimeStretcherData::getStretcher(size_t channel)
 {
     return m_stretcher[channel].first;
 }
 
-double *
+float *
 AudioCallbackPlaySource::TimeStretcherData::getOutputBuffer(size_t channel)
 {
     return m_stretcher[channel].second;
 }
 
-double *
+float *
 AudioCallbackPlaySource::TimeStretcherData::getInputBuffer()
 {
     return m_stretchInputBuffer;
 }
 

     }
 
     if (m_slowdownCounter == 0) {
 
 	size_t got = 0;
-	double *ib = timeStretcher->getInputBuffer();
+	float *ib = timeStretcher->getInputBuffer();
 
 	for (size_t ch = 0; ch < getTargetChannelCount(); ++ch) {
 
 	    RingBuffer<float> *rb = getReadRingBuffer(ch);
 

 	m_slowdownCounter = 0;
     }
 
     for (size_t ch = 0; ch < getTargetChannelCount(); ++ch) {
 
-	double *ob = timeStretcher->getOutputBuffer(ch);
+	float *ob = timeStretcher->getOutputBuffer(ch);
 
 #ifdef DEBUG_AUDIO_PLAY_SOURCE
 	std::cerr << "AudioCallbackPlaySource::getSamples: Copying from (" << (m_slowdownCounter * count) << "," << count << ") to buffer" << std::endl;
 #endif