changeset 1:3d1928670329

* Commit Dan's patch for threshold parameter

--- a/onsetsdsplugin.cpp	Thu Jun 19 12:30:15 2008 +0000
+++ b/onsetsdsplugin.cpp	Fri Jun 20 13:42:15 2008 +0000
@@ -35,9 +35,10 @@
     m_ods(0),
     m_odsdata(0),
     m_dfType(ODS_ODF_RCOMPLEX),
+    m_threshold(0.5),
     m_medspan(11),
-    m_stepSize(512),
-    m_fftSize(1024)
+    m_stepSize(256),
+    m_fftSize(512)
 {
 }
 
@@ -106,6 +107,16 @@
     desc.valueNames.push_back("Modified Kullback-Liebler deviation");
     list.push_back(desc);
 
+    desc.identifier = "threshold";
+    desc.name = "Detection threshold";
+    desc.description = "Onsets trigger when the function beats this value";
+    desc.minValue = 0;
+    desc.maxValue = 1;
+    desc.defaultValue = 0.5;
+    desc.isQuantized = false;
+    desc.valueNames.clear();
+    list.push_back(desc);
+
     desc.identifier = "medspan";
     desc.name = "Median frame span";
     desc.description = "Number of past frames used in median calculation";
@@ -133,6 +144,8 @@
         case ODS_ODF_WPHASE:   return 5;
         case ODS_ODF_MKL:      return 6;
         }
+    } else if (name == "threshold") {
+        return m_threshold;
     } else if (name == "medspan") {
         return m_medspan;
     }
@@ -155,6 +168,8 @@
         }
         if (dfType == m_dfType) return;
         m_dfType = dfType;
+    } else if (name == "threshold") {
+        m_threshold = value;
     } else if (name == "medspan") {
         m_medspan = lrintf(value);
     }
@@ -191,7 +206,8 @@
     memset(m_ods, 0, sizeof(OnsetsDS));
     onsetsds_init(m_ods, m_odsdata, ODS_FFT_FFTW3_R2C, m_dfType, m_fftSize,
                   m_medspan, m_inputSampleRate);
-
+	m_ods->thresh = m_threshold;
+	
     return true;
 }
 
@@ -209,13 +225,13 @@
 size_t
 OnsetsDSPlugin::getPreferredStepSize() const
 {
-    return 512;
+    return 256;
 }
 
 size_t
 OnsetsDSPlugin::getPreferredBlockSize() const
 {
-    return 1024;
+    return 512;
 }
 
 OnsetsDSPlugin::OutputList

--- a/onsetsdsplugin.h	Thu Jun 19 12:30:15 2008 +0000
+++ b/onsetsdsplugin.h	Fri Jun 20 13:42:15 2008 +0000
@@ -64,6 +64,7 @@
     OnsetsDS *m_ods;
     float *m_odsdata;
     onsetsds_odf_types m_dfType;
+    float m_threshold;
     size_t m_medspan;
     size_t m_stepSize;
     size_t m_fftSize;