/usr/include/CLAM/SpectralAnalysis.hxx is in libclam-dev 1.4.0-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | /*
* 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 __SpectralAnalysis__
#define __SpectralAnalysis__
//Uncomment this line if you want to use Ooura fft instead of fftw
//#define CLAM_OOURA
#include "WindowGenerator.hxx"
#include "CircularShift.hxx"
#include "SpectralAnalysisConfig.hxx"
#include "Audio.hxx"
#include "AudioMultiplier.hxx"
#include "ProcessingComposite.hxx"
#include "FFT.hxx"
#include "Spectrum.hxx"
#include "AudioInPort.hxx"
#include "OutPort.hxx"
namespace CLAM {
class Frame;
class Segment;
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 SpectralAnalysis:public ProcessingComposite
{
public:
// Processing Object compliance methods.
const char *GetClassName() const {return "SpectralAnalysis";}
SpectralAnalysis(SpectralAnalysisConfig& config);
SpectralAnalysis();
~SpectralAnalysis();
const ProcessingConfig &GetConfig() const {return mConfig;}
/** Supervised mode execution */
bool Do(void);
/** Basic unsupervised Do method. It returns an output spectrum using an input audio frame*/
bool Do(const Audio& in,Spectrum& outSp);
/** Unsupervised Do method that uses a CLAM Frame as input and output. AudioFrame attribute of
* the frame is used as input and Spectrum as output.
* @see Frame */
bool Do(Frame& in);
/** Unsupervised Do method that uses an incoming CLAM Segment as input and
* output. It processes the frame that is indicated by the current frame index
* in the segment and increments that index.
* @see Segment*/
bool Do(Segment& in);
private:
/** Internal Configuration data */
SpectralAnalysisConfig mConfig;
// The internal Processing Objects
/** Child Window Generator Processing
* @see WindowGenerator
*/
WindowGenerator mPO_WinGen;
/** Child Audio Multiplier Processing for doing the windowing
* @see AudioMultiplier
*/
AudioMultiplier mPO_AProduct;
/** Child Circular Shift Processing
* @see CircularShift
*/
CircularShift mPO_CShift;
/** Child FFT Processing
* @see FFT
*/
FFT mPO_FFT;
/** Internal Circular Buffer Processing for overlap
* @see AudioCircularBuffer */
// AudioCircularBuffer mCircularBuffer;
//Internal DataObjects
/** Audio internal object that will be processed through the FFT*/
Audio mAudioFrame;
/** Window internal object that will be multiplied with incoming audio frame*/
Audio mWindow;
/** spectrum object only used for initializing frames */
Spectrum mSpec;
// Internal convenience methods.
void AttachChildren();
bool ConfigureChildren();
void ConfigureData();
/** Configuration method */
bool ConcreteConfigure(const ProcessingConfig&);
/** Ports */
AudioInPort mInput;
OutPort<Spectrum> mOutput;
};
} //namespace
#endif
|