/usr/include/CLAM/EnvelopeGenerator.hxx is in libclam-dev 1.4.0-5build1.
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 | /*
* 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 _EnvelopeGenerator_
#define _EnvelopeGenerator_
#include "Processing.hxx"
#include "ProcessingData.hxx"
#include "ProcessingData.hxx"
#include "Envelope.hxx"
#include "AudioOutPort.hxx"
#include "InPort.hxx"
namespace CLAM
{
class EnvelopeGeneratorConfig: public ProcessingConfig
{
public:
DYNAMIC_TYPE_USING_INTERFACE (EnvelopeGeneratorConfig, 4, ProcessingConfig);
DYN_ATTRIBUTE (0, public, TData, Duration);
DYN_ATTRIBUTE (1, public, TData, SampleRate);
DYN_ATTRIBUTE (2, public, bool, FrameEnvelopes);
DYN_ATTRIBUTE (3, public, int, FrameSize);
protected:
void DefaultInit(void)
{
AddAll();
UpdateData();
SetDuration(1.0);
SetSampleRate(44100.0);
SetFrameEnvelopes(false);
SetFrameSize(512);
}
};
class EnvelopeGenerator: public Processing
{
private:
EnvelopeGeneratorConfig mConfig;
TData mX;
TData mDX;
bool mXFrameReset;
InControlTmpl<EnvelopeGenerator> mEnvelopePos;
int UpdateEnvelopePosition(TControlData val)
{
mX=val;
return 0;
}
public:
EnvelopeGenerator(const EnvelopeGeneratorConfig& c = EnvelopeGeneratorConfig())
:
mEnvelopePos("EnvelopePosition",this, &EnvelopeGenerator::UpdateEnvelopePosition),
Input("Input",this),
Output("Output",this)
{
Configure(c);
}
const char * GetClassName() const { return "EnvelopeGenerator";}
InPort<Envelope> Input;
AudioOutPort Output;
const ProcessingConfig &GetConfig() const { return mConfig;}
bool ConcreteConfigure(const ProcessingConfig& c)
{
CopyAsConcreteConfig(mConfig, c);
mXFrameReset = mConfig.GetFrameEnvelopes();
mX = 0;
mDX = TData(1000.)/(mConfig.GetSampleRate()*mConfig.GetDuration());
Output.SetParams(mConfig.GetFrameSize());
return true;
}
void Attach(Envelope& in,Audio& out)
{
Input.Attach(in);
Output.Attach(out);
}
bool Do(void)
{
bool res = Do(Input.GetData(),Output.GetData());
Input.Consume();
Output.Produce();
return res;
}
bool Do(Envelope& in,Audio& out)
{
BPFTmpl<TTime,TData> &envelope = in.GetAmplitudeBPF();
DataArray &audio = out.GetBuffer();
int size = audio.Size();
for (int i=0;i<size;i++)
{
audio[i] = envelope.GetValue(mX);
mX += mDX;
if (mX>1000.0) mX=1000.0;
}
if (mXFrameReset)
mX=0.0;
return true;
}
};
}
#endif
|