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/*
* Copyright (c) 2001-2002 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
*
*/
#include<iostream>
#include "OSDefines.hxx"
#include "MonoAudioFileReader.hxx"
#include "AudioManager.hxx"
#include "LPC.hxx"
#include "XMLStorage.hxx"
using namespace CLAM;
class LPCExampleConfig : public ProcessingConfig {
public:
DYNAMIC_TYPE_USING_INTERFACE (LPCExampleConfig, 2, ProcessingConfig);
DYN_ATTRIBUTE (0, public, std::string, Filename);
DYN_ATTRIBUTE (1, public, int, Order);
private:
void DefaultInit();
};
void LPCExampleConfig::DefaultInit()
{
AddAll();
UpdateData();
}
class LPCExample : public ProcessingComposite {
LPCExampleConfig mConfig;
int mSize;
int mOrder;
MonoAudioFileReader mFileIn;
Audio mInputData;
LPC mLPC;
void AttachChildren();
bool ConfigureChildren();
bool ConfigureData();
void ConfigureAudio(Audio&);
const char* GetClassName() const {return "LPCExample";}
bool ConcreteStart() throw(ErrProcessingObj);
bool ConcreteConfigure(const ProcessingConfig& c);
public:
LPCExample(const LPCExampleConfig &cfg);
const ProcessingConfig& GetConfig() const {return mConfig;}
bool Do() { return true; }
bool Do( DataArray& A, DataArray& K, TData& E );
};
bool LPCExample::ConcreteStart() throw(ErrProcessingObj)
{
iterator obj;
for (obj=composite_begin(); obj!=composite_end(); obj++)
(*obj)->Start();
try {
AudioManager::Current().Start();
}
catch (Err) {
throw(ErrProcessingObj("Could not start AudioManager",this));
}
return true;
}
void LPCExample::AttachChildren()
{
mFileIn.SetParent(this);
mLPC.SetParent(this);
}
bool LPCExample::ConfigureChildren()
{
MonoAudioFileReaderConfig fcfg;
fcfg.SetSourceFile(mConfig.GetFilename());
CLAM_DEBUG_ASSERT(mSize>0, "no positive frame size");
mFileIn.Configure(fcfg);
//mSize = mFileIn.Size();
LPCConfig LPC_cfg;
LPC_cfg.SetName( "LPC" );
LPC_cfg.SetOrder( mConfig.GetOrder() );
mLPC.Configure( LPC_cfg );
return true;
}
void LPCExample::ConfigureAudio(Audio& a)
{
a.SetSize(mSize);
a.SetSampleRate(AudioManager::Current().SampleRate());
}
bool LPCExample::ConfigureData()
{
ConfigureAudio(mInputData);
return true;
}
bool LPCExample::ConcreteConfigure(const ProcessingConfig& c)
{
CopyAsConcreteConfig(mConfig,c);
ConfigureChildren();
ConfigureData();
return true;
}
LPCExample::LPCExample(const LPCExampleConfig &cfg)
: mSize(512)
{
AttachChildren();
Configure(cfg);
}
bool LPCExample::Do( DataArray& A, DataArray& K, TData& E )
{
mFileIn.Do(mInputData);
mLPC.Do( mInputData, A, K, E);
return true;
}
int main( int argc, char* argv[] )
{
try{
int i , Size = 512;
int LPC_order = 11;
float SampleRate = 44100.0;
AudioManager manager(SampleRate, Size);
// manager.SetInternalBuffersNumber( 8 ); // DGGPORT
manager.Start();
CLAM::DataArray A; // filter coefficients
CLAM::DataArray K; // reflection coefficients
CLAM::TData E; // average of mean squared error of the filter
// Polynomial configuration
A.Resize( LPC_order );
A.SetSize( LPC_order );
// DataArray configuration
K.Resize( LPC_order );
K.SetSize( LPC_order );
// Processing composite configuration
LPCExampleConfig myAppConfig;
myAppConfig.SetFilename( "/home/vokimon/CajitasDeArena/CLAM-TestData/SMSTests/aeiou_lowpass.wav" );
myAppConfig.SetOrder( LPC_order );
// Processing composite creation
LPCExample myApp( myAppConfig );
// End of Processing composite configuration
myApp.Start();
// Processing composite execution
std::cout << "Running object" << std::endl;
myApp.Do( A, K, E );
CLAM::XMLStorage::Dump( A, "ACoefficients", "LPC_exampleA.xml" );
CLAM::XMLStorage::Dump( K, "BCoefficients", "LPC_exampleB.xml" );
}
catch( CLAM::Err err )
{
err.Print();
}
return 0;
}
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