/usr/include/CLAM/AudioWindowing.hxx is in libclam-dev 1.4.0-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* 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 __AudioWindowing__
#define __AudioWindowing__
#include "WindowGenerator.hxx"
#include "CircularShift.hxx"
#include "AudioWindowingConfig.hxx"
#include "Audio.hxx"
#include "AudioMultiplier.hxx"
#include "ProcessingComposite.hxx"
#include "AudioInPort.hxx"
#include "OutPort.hxx"
namespace CLAM {
class ProcessingConfig;
/** Processing class for performing a STFT. Its main functionality is to obtain
* a spectrum out of an incoming audio signal, applying windowing, circular shift
* and zero padding. Its different
*/
class AudioWindowing : public ProcessingComposite
{
public:
typedef AudioWindowingConfig Config;
// Processing Object compliance methods.
const char *GetClassName() const {return "AudioWindowing";}
AudioWindowing(const Config& config=Config())
: mInput("Input",this)
, mOutput("Output",this)
{
AttachChildren();
Configure(config);
}
~AudioWindowing();
const ProcessingConfig &GetConfig() const {return mConfig;}
bool Do(void);
bool Do(const Audio & in,Audio & out);
private:
// Internal configuration data
Config mConfig;
// The internal Processing Objects
WindowGenerator mWindowGenerator;
AudioMultiplier mAudioProduct;
CircularShift mCircularShift;
// Internal Data objects
/// An audio object containing the window that will
/// be multiplied by each incomming frame.
Audio mWindow;
// Internal convenience methods.
void AttachChildren();
bool ConfigureChildren();
void ConfigureData();
// Redefined methods
bool ConcreteConfigure(const ProcessingConfig&);
// Ports
AudioInPort mInput;
OutPort<Audio> mOutput;
};
} //namespace
#endif
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