From 773e21b80a38de52ed59738a152ef34d001e4cee Mon Sep 17 00:00:00 2001
From: John Glover <j@johnglover.net>
Date: Sat, 11 Aug 2012 20:00:14 +0100
Subject: [sndobj] Add C++ implementation of SndObjPartialTracking.

---
 src/simpl/partial_tracking.cpp | 94 ++++++++++++++++++++++++++++++++++++++++++
 src/simpl/partial_tracking.h   | 26 ++++++++++++
 2 files changed, 120 insertions(+)

(limited to 'src')

diff --git a/src/simpl/partial_tracking.cpp b/src/simpl/partial_tracking.cpp
index 34da931..27b7e12 100644
--- a/src/simpl/partial_tracking.cpp
+++ b/src/simpl/partial_tracking.cpp
@@ -189,7 +189,101 @@ Peaks SMSPartialTracking::update_partials(Frame* frame) {
         p->frequency = _data.pFSinFreq[i];
         p->phase = _data.pFSinPha[i];
         peaks.push_back(p);
+        frame->add_partial(p);
+    }
+
+    return peaks;
+}
+
+// ---------------------------------------------------------------------------
+// SndObjPartialTracking
+// ---------------------------------------------------------------------------
+
+SndObjPartialTracking::SndObjPartialTracking() {
+    _threshold = 0.003;
+    _num_bins = 1025;
+    _input = new SndObj();
+    _analysis = new SinAnal(_input, _num_bins, _threshold, _max_partials);
 
+    _peak_amplitude = NULL;
+    _peak_frequency = NULL;;
+    _peak_phase = NULL;
+    init_peaks();
+}
+
+SndObjPartialTracking::~SndObjPartialTracking() {
+    delete _input;
+    delete _analysis;
+
+    _input = NULL;
+    _analysis = NULL;
+
+    delete [] _peak_amplitude;
+    delete [] _peak_frequency;
+    delete [] _peak_phase;
+
+    _peak_amplitude = NULL;
+    _peak_frequency = NULL;;
+    _peak_phase = NULL;
+}
+
+void SndObjPartialTracking::init_peaks() {
+    if(_peak_amplitude) {
+        delete [] _peak_amplitude;
+    }
+    if(_peak_frequency) {
+        delete [] _peak_frequency;
+    }
+    if(_peak_phase) {
+        delete [] _peak_phase;
+    }
+
+    _peak_amplitude = new sample[_max_partials];
+    _peak_frequency = new sample[_max_partials];
+    _peak_phase = new sample[_max_partials];
+
+    memset(_peak_amplitude, 0.0, sizeof(sample) * _max_partials);
+    memset(_peak_frequency, 0.0, sizeof(sample) * _max_partials);
+    memset(_peak_phase, 0.0, sizeof(sample) * _max_partials);
+}
+
+void SndObjPartialTracking::max_partials(int new_max_partials) {
+    _max_partials = new_max_partials;
+    _analysis->Set("max tracks", new_max_partials);
+}
+
+Peaks SndObjPartialTracking::update_partials(Frame* frame) {
+    int num_peaks = _max_partials;
+    if(num_peaks > frame->num_peaks()) {
+        num_peaks = frame->num_peaks();
+    }
+
+    for(int i = 0; i < num_peaks; i++) {
+        _peak_amplitude[i] = frame->peak(i)->amplitude;
+        _peak_frequency[i] = frame->peak(i)->frequency;
+        _peak_phase[i] = frame->peak(i)->phase;
+    }
+
+    _analysis->SetPeaks(_max_partials, _peak_amplitude,
+                        _max_partials, _peak_frequency,
+                        _max_partials, _peak_phase);
+    _analysis->PartialTracking();
+
+    int num_partials = _analysis->GetTracks();
+    Peaks peaks;
+
+    for(int i = 0; i < num_partials; i++) {
+        Peak* p = new Peak();
+        p->amplitude =  _analysis->Output(i * 3);
+        p->frequency = _analysis->Output((i * 3) + 1);
+        p->phase =  _analysis->Output((i * 3) + 2);
+        peaks.push_back(p);
+        frame->add_partial(p);
+    }
+
+    for(int i = num_partials; i < _max_partials; i++) {
+        Peak* p = new Peak();
+        peaks.push_back(p);
         frame->add_partial(p);
     }
 
diff --git a/src/simpl/partial_tracking.h b/src/simpl/partial_tracking.h
index 964d959..f94886e 100644
--- a/src/simpl/partial_tracking.h
+++ b/src/simpl/partial_tracking.h
@@ -7,6 +7,11 @@ extern "C" {
     #include "sms.h"
 }
 
+#include "SndObj.h"
+#include "HammingTable.h"
+#include "IFGram.h"
+#include "SinAnal.h"
+
 using namespace std;
 
 namespace simpl
@@ -67,6 +72,27 @@ class SMSPartialTracking : public PartialTracking {
         Peaks update_partials(Frame* frame);
 };
 
+// ---------------------------------------------------------------------------
+// SndObjPartialTracking
+// ---------------------------------------------------------------------------
+class SndObjPartialTracking : public PartialTracking {
+    private:
+        sample _threshold;
+        int _num_bins;
+        SndObj* _input;
+        SinAnal* _analysis;
+        sample* _peak_amplitude;
+        sample* _peak_frequency;
+        sample* _peak_phase;
+        void init_peaks();
+
+    public:
+        SndObjPartialTracking();
+        ~SndObjPartialTracking();
+        void max_partials(int new_max_partials);
+        Peaks update_partials(Frame* frame);
+};
+
 
 } // end of namespace Simpl
 
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