SegmentSMSHarmonizer.hxx

Go to the documentation of this file.

/*
 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


#ifndef _SegmentSMSHarmonizer_
#define _SegmentSMSHarmonizer_

#include "SMSPitchShift.hxx"
#include "SpectrumAdder2.hxx"
#include "FrameTransformation.hxx"


// TODO: this transformation needs to be ported to inherit from FrameTransformation instead of SegmentTransformation
//               also, a solution has to be figured out to make the transformation controllable via ports

namespace CLAM{


        class SegmentSMSHarmonizer: public FrameTransformation
        {
                
                const char *GetClassName() const {return "SegmentSMSHarmonizer";}
                
                FloatInControl mIndexCtl;//says what the amount sent as control is modifying
                FloatInControl mTransCtl;
                FloatInControl mIgnoreResidualCtl;
                FloatInControl mUpdateBPFCtl;
        public:
                        
                void UpdateBPF(TControlData value)
                {
                        CLAM::BPF& bpf= mConfig.GetBPF();
                        //this should never happen, it should be initialized at configuration time
                        if(bpf.Size()==0)
                        {
                                InitBPF();
                        }
                        
                        bpf.SetValue((int)mIndexCtl.GetLastValue(), mTransCtl.GetLastValue());
                }
                void IgnoreResidual(TControlData value)
                {
                        mPitchShift.mIgnoreResidual.DoControl(value);
                }
        public:
                SegmentSMSHarmonizer()
                        : mIndexCtl("Index", this)
                        , mTransCtl("Transposition",this)
                        , mIgnoreResidualCtl("IgnoreResidual",this, &SegmentSMSHarmonizer::IgnoreResidual)
                        , mUpdateBPFCtl("UpdateBPF", this, &SegmentSMSHarmonizer::UpdateBPF)
                {
                        Configure(FrameTransformationConfig());
                        mTmpFrame.AddAll();
                        mTmpFrame.UpdateData();
                        mTmpFund.AddElem();
                }
                
                bool ConcreteConfigure(const ProcessingConfig& c)
                {
                        CopyAsConcreteConfig( mConfig, c );
                        InitBPF();
                        mPitchShift.Configure(FrameTransformationConfig());
                        //By default we ignore residual!!
                        mIgnoreResidualCtl.DoControl(1.);
                        return true;
                }

                ~SegmentSMSHarmonizer()
                {}
                
                bool Do()
                {
                        CLAM_ASSERT(false, "Do with ports not implemented");
                        return false;
                }
                
                bool Do(const Frame& in, Frame& out);
        private:
                SMSPitchShift mPitchShift;
                SpectrumAdder2 mSpectrumAdder;
                void AddFrame(const Frame& in1, const Frame& in2, Frame& out);
                void Gain(Frame& inputFrame, TData gain);
                
                Fundamental mTmpFund;
                Frame mTmpFrame;
                
                void InitBPF()
                {
                        if (!mConfig.HasBPF())
                        {
                                mConfig.AddBPF();
                                mConfig.UpdateData();
                        }
                        if(mConfig.GetBPF().Size()==0)//else we asume that the user has initialized it before
                        {
                                BPF& bpf=mConfig.GetBPF();
                                bpf.Resize(10);
                                bpf.SetSize(10);
                                int i;
                                //we add ten voices with gain going from -30 to +30 but no transposition (note that X controls gain and Y transposition)
                                for (i=0; i< 10; i++)
                                {
                                        bpf.SetValue(i,1);
                                        bpf.SetXValue(i,(i-5)*6);
                                }
                        }
                }
                
        
        };              
};//namespace CLAM

#endif // _SegmentSMSHarmonizer_