Chris@298: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@298: 
Chris@298: /*
Chris@298:   Silvet
Chris@298: 
Chris@298:   A Vamp plugin for note transcription.
Chris@298:   Centre for Digital Music, Queen Mary University of London.
Chris@298:     
Chris@298:   This program is free software; you can redistribute it and/or
Chris@298:   modify it under the terms of the GNU General Public License as
Chris@298:   published by the Free Software Foundation; either version 2 of the
Chris@298:   License, or (at your option) any later version.  See the file
Chris@298:   COPYING included with this distribution for more information.
Chris@298: */
Chris@298: 
Chris@298: #include "LiveInstruments.h"
Chris@298: 
Chris@298: #include "data/include/templates.h"
Chris@298: 
Chris@301: #include <iostream>
Chris@301: 
Chris@298: using namespace std;
Chris@298: 
Chris@298: InstrumentPack
Chris@298: LiveAdapter::adapt(const InstrumentPack &original)
Chris@298: {
Chris@298:     vector<InstrumentPack::Templates> templates;
Chris@298: 
Chris@301:             cerr << "LiveAdapter: reduced template height is " << SILVET_TEMPLATE_HEIGHT/5 << endl;
Chris@301:             
Chris@298:     for (vector<InstrumentPack::Templates>::const_iterator i =
Chris@298: 	     original.templates.begin();
Chris@298: 	 i != original.templates.end(); ++i) {
Chris@298: 
Chris@298: 	InstrumentPack::Templates t;
Chris@298: 	t.lowestNote = i->lowestNote;
Chris@298: 	t.highestNote = i->highestNote;
Chris@298: 	t.data.resize(i->data.size());
Chris@298: 
Chris@298: 	for (int j = 0; j < int(i->data.size()); ++j) {
Chris@301: 
Chris@298: 	    t.data[j].resize(SILVET_TEMPLATE_HEIGHT/5);
Chris@301: 
Chris@299:             float sum = 0.f;
Chris@301: 
Chris@298: 	    for (int k = 0; k < SILVET_TEMPLATE_HEIGHT/5; ++k) {
Chris@301: 
Chris@301:                 t.data[j][k] = 0.f;
Chris@301: 
Chris@301:                 for (int m = 0; m < 5; ++m) {
Chris@301:                     t.data[j][k] += i->data[j][k * 5 + m + 2];
Chris@301:                 }
Chris@301:                 
Chris@299:                 sum += t.data[j][k];
Chris@298: 	    }
Chris@301:             
Chris@299: 	    // re-normalise
Chris@302:             if (sum > 0.f) {
Chris@302:                 for (int k = 0; k < (int)t.data[j].size(); ++k) {
Chris@302:                     t.data[j][k] *= 1.f / sum;
Chris@302:                 }
Chris@299:             }
Chris@298: 	}
Chris@299: 
Chris@298: 	templates.push_back(t);
Chris@298:     }
Chris@298:     
Chris@298:     InstrumentPack live(original.lowestNote,
Chris@298: 			original.highestNote,
Chris@298: 			original.name,
Chris@298: 			templates);
Chris@298: 
Chris@298:     live.templateHeight = SILVET_TEMPLATE_HEIGHT/5;
Chris@298:     live.templateMaxShift = 0;
Chris@298:     live.templateSize = live.templateHeight;
Chris@298:     
Chris@298:     live.maxPolyphony = original.maxPolyphony;
Chris@298:     live.pitchSparsity = original.pitchSparsity;
Chris@298:     live.sourceSparsity = original.sourceSparsity;
Chris@300:     live.levelThreshold = original.levelThreshold/10; //!!! but why?
Chris@298: 
Chris@298:     return live;
Chris@298: }
Chris@298: 
Chris@298: vector<InstrumentPack>
Chris@298: LiveAdapter::adaptAll(const vector<InstrumentPack> &v)
Chris@298: {
Chris@298:     vector<InstrumentPack> out;
Chris@298:     for (int i = 0; i < (int)v.size(); ++i) {
Chris@298:         InstrumentPack p(LiveAdapter::adapt(v[i]));
Chris@298:         out.push_back(p);
Chris@298:     }
Chris@298:     return out;
Chris@298: }