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src
Processing
Transformations
Normalization.hxx
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/*
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* Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
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* UNIVERSITAT POMPEU FABRA
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef _Normalization_
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#define _Normalization_
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#include "
Processing.hxx
"
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#include "
Audio.hxx
"
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#include "
OutControl.hxx
"
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namespace
CLAM
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{
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class
NormalizationConfig
:
public
ProcessingConfig
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{
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public
:
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DYNAMIC_TYPE_USING_INTERFACE
(
NormalizationConfig
, 2,
ProcessingConfig
);
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DYN_ATTRIBUTE
(0,
public
,
int
, Type);
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DYN_ATTRIBUTE
(1,
public
,
TSize
, FrameSize);
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void
DefaultInit
(
void
);
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};
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class
Normalization
:
public
Processing
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{
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private
:
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NormalizationConfig
mConfig;
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FloatOutControl
mIsSilenceCtrl;
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int
mType;
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TSize
mFrameSize;
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bool
ConcreteConfigure(
const
ProcessingConfig
& c);
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/*
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* With this check an app can know if the passed audio is silence,
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* just consulting the value of the control.
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*/
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void
CheckSilence(
int
size );
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public
:
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Normalization
();
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Normalization
(
NormalizationConfig
& c);
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~Normalization
();
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const
char
*
GetClassName
()
const
{
return
"Normalization"
;}
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bool
Do
(
void
);
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bool
Do
(
Audio
&in);
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bool
Do
(
const
Audio
& unnorm,
Audio
& norm );
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const
ProcessingConfig
&
GetConfig
()
const
{
return
mConfig;}
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protected
:
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TData
ComputeScaleFactorFromMaxEnergy
(
DataArray
& inAudio );
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TData
ComputeScaleFactorFromAvgEnergy
(
DataArray
& inAudio );
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TData
ComputeScaleFactorFromDominantEnergy
(
DataArray
& inAudio );
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};
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}
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#endif
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