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diff dsp/tempotracking/DownBeat.cpp @ 289:befe5aa6b450

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* Refactor FFT a little bit so as to separate construction and processing rather than have a single static method -- will make it easier to use a different implementation * pull in KissFFT implementation (not hooked up yet)
author Chris Cannam <c.cannam@qmul.ac.uk>
date Wed, 13 May 2009 09:19:12 +0000
parents 5e125f030287
children c3cdb404f807
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line diff
--- a/dsp/tempotracking/DownBeat.cpp	Tue May 12 21:04:25 2009 +0000
+++ b/dsp/tempotracking/DownBeat.cpp	Wed May 13 09:19:12 2009 +0000
@@ -43,6 +43,7 @@
     m_beatframe = new double[m_beatframesize];
     m_fftRealOut = new double[m_beatframesize];
     m_fftImagOut = new double[m_beatframesize];
+    m_fft = new FFTReal(m_beatframesize);
 }
 
 DownBeat::~DownBeat()
@@ -54,6 +55,7 @@
     delete[] m_beatframe;
     delete[] m_fftRealOut;
     delete[] m_fftImagOut;
+    delete m_fft;
 }
 
 void
@@ -186,8 +188,7 @@
 
         // Now FFT beat frame
         
-        FFT::process(m_beatframesize, false,
-                     m_beatframe, 0, m_fftRealOut, m_fftImagOut);
+        m_fft->process(false, m_beatframe, m_fftRealOut, m_fftImagOut);
         
         // Calculate magnitudes