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lmms/plugins/LadspaEffect/cmt/src/dynamic.cpp

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/* dynamic.cpp
Computer Music Toolkit - a library of LADSPA plugins. Copyright (C)
2000-2002 Richard W.E. Furse. The author may be contacted at
richard@muse.demon.co.uk.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public Licence as
published by the Free Software Foundation; either version 2 of the
Licence, or (at your option) any later version.
This library 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 library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA. */
/*****************************************************************************/
/* This module provides unsophisticated implementations of compressor,
expander and limiter plugins. Note that attack and decay times are
applied at the LEVEL DETECTION stage rather than at gain processing
(the reason no noise gate is provided). No delay is applied to the
main signal. These are useful (and efficient) tools and extended
compressors should probably allocate new IDs rather than break
compatibility in parameter set and sound for this set. */
// Having said this, I'm not sure the attack/decay parameters are the
// right way around.
/*****************************************************************************/
#include <math.h>
#include <stdlib.h>
#include <string.h>
/*****************************************************************************/
#include "cmt.h"
#include "utils.h"
/*****************************************************************************/
class DynamicProcessor {
protected:
/** This state variable is used to track the input envelope (peak or
rms). The state is stored here so that the run function can
perform low-pass filtering to produce a smoothed envelope. */
LADSPA_Data m_fEnvelopeState;
/** The sample rate in the world this instance exists in. */
LADSPA_Data m_fSampleRate;
DynamicProcessor(const LADSPA_Data fSampleRate)
: m_fSampleRate(fSampleRate) {
}
};
/*****************************************************************************/
#define CE_THRESHOLD 0
#define CE_RATIO 1
#define CE_ATTACK 2
#define CE_DECAY 3
#define CE_INPUT 4
#define CE_OUTPUT 5
/** This class is used to implement simple compressor and expander
plugins. Attack and decay times are applied at the level detection
stage rather than at gain processing. No delay is applied to the
main signal. Both peak and RMS support is included. */
class CompressorExpander
: public CMT_PluginInstance, public DynamicProcessor {
public:
CompressorExpander(const LADSPA_Descriptor *,
unsigned long lSampleRate)
: CMT_PluginInstance(6),
DynamicProcessor(lSampleRate) {
}
friend void activateCompressorExpander(void * pvHandle);
friend void runCompressor_Peak(LADSPA_Handle Instance,
unsigned long SampleCount);
friend void runCompressor_RMS(LADSPA_Handle Instance,
unsigned long SampleCount);
friend void runExpander_Peak(LADSPA_Handle Instance,
unsigned long SampleCount);
friend void runExpander_RMS(LADSPA_Handle Instance,
unsigned long SampleCount);
};
/*****************************************************************************/
#define LN_THRESHOLD 0
#define LN_ATTACK 1
#define LN_DECAY 2
#define LN_INPUT 3
#define LN_OUTPUT 4
/** This class is used to implement simple limiter plugins. Attack and
decay times are applied at the level detection stage rather than
at gain processing. No delay is applied to the main signal. Both
peak and RMS support is included. */
class Limiter
: public CMT_PluginInstance, public DynamicProcessor {
public:
Limiter(const LADSPA_Descriptor *,
unsigned long lSampleRate)
: CMT_PluginInstance(5),
DynamicProcessor(lSampleRate) {
}
friend void activateLimiter(void * pvHandle);
friend void runLimiter_Peak(LADSPA_Handle Instance,
unsigned long SampleCount);
friend void runLimiter_RMS(LADSPA_Handle Instance,
unsigned long SampleCount);
};
/*****************************************************************************/
void
activateCompressorExpander(void * pvHandle) {
CompressorExpander * poProcessor = (CompressorExpander *)pvHandle;
poProcessor->m_fEnvelopeState = 0;
}
/*****************************************************************************/
void
activateLimiter(void * pvHandle) {
Limiter * poProcessor = (Limiter *)pvHandle;
poProcessor->m_fEnvelopeState = 0;
}
/*****************************************************************************/
void
runCompressor_Peak(LADSPA_Handle Instance,
unsigned long SampleCount) {
CompressorExpander * poProcessor = (CompressorExpander *)Instance;
LADSPA_Data fThreshold
= BOUNDED_BELOW(*(poProcessor->m_ppfPorts[CE_THRESHOLD]),
0);
LADSPA_Data fOneOverThreshold
= 1 / fThreshold;
LADSPA_Data fRatioMinusOne
= *(poProcessor->m_ppfPorts[CE_RATIO]) - 1;
LADSPA_Data * pfInput
= poProcessor->m_ppfPorts[CE_INPUT];
LADSPA_Data * pfOutput
= poProcessor->m_ppfPorts[CE_OUTPUT];
LADSPA_Data fEnvelopeDrag_Attack
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_ATTACK]),
poProcessor->m_fSampleRate);
LADSPA_Data fEnvelopeDrag_Decay
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_DECAY]),
poProcessor->m_fSampleRate);
LADSPA_Data &rfEnvelopeState
= poProcessor->m_fEnvelopeState;
for (unsigned long lSampleIndex = 0;
lSampleIndex < SampleCount;
lSampleIndex++) {
LADSPA_Data fInput = *(pfInput++);
LADSPA_Data fEnvelopeTarget = fabs(fInput);
if (fEnvelopeTarget > rfEnvelopeState)
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Attack
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Attack));
else
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Decay
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Decay));
/* Perform the mapping. This questions this plugin's claim of
being `hard-realtime.' */
LADSPA_Data fGain;
if (rfEnvelopeState < fThreshold)
fGain = 1;
else {
fGain = pow(rfEnvelopeState * fOneOverThreshold, fRatioMinusOne);
if (isnan(fGain))
fGain = 0;
}
/* Perform output. */
*(pfOutput++) = fInput * fGain;
}
}
/*****************************************************************************/
void
runCompressor_RMS(LADSPA_Handle Instance,
unsigned long SampleCount) {
CompressorExpander * poProcessor = (CompressorExpander *)Instance;
LADSPA_Data fThreshold
= BOUNDED_BELOW(*(poProcessor->m_ppfPorts[CE_THRESHOLD]),
0);
LADSPA_Data fOneOverThreshold
= 1 / fThreshold;
LADSPA_Data fRatioMinusOne
= *(poProcessor->m_ppfPorts[CE_RATIO]) - 1;
LADSPA_Data * pfInput
= poProcessor->m_ppfPorts[CE_INPUT];
LADSPA_Data * pfOutput
= poProcessor->m_ppfPorts[CE_OUTPUT];
LADSPA_Data fEnvelopeDrag_Attack
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_ATTACK]),
poProcessor->m_fSampleRate);
LADSPA_Data fEnvelopeDrag_Decay
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_DECAY]),
poProcessor->m_fSampleRate);
LADSPA_Data &rfEnvelopeState
= poProcessor->m_fEnvelopeState;
for (unsigned long lSampleIndex = 0;
lSampleIndex < SampleCount;
lSampleIndex++) {
LADSPA_Data fInput = *(pfInput++);
LADSPA_Data fEnvelopeTarget = fInput * fInput;
if (fEnvelopeTarget > rfEnvelopeState)
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Attack
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Attack));
else
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Decay
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Decay));
LADSPA_Data fEnvelopeAmplitude = sqrt(rfEnvelopeState);
/* Perform the mapping. This questions this plugin's claim of
being `hard-realtime.' */
LADSPA_Data fGain;
if (fEnvelopeAmplitude < fThreshold)
fGain = 1;
else {
fGain = pow(fEnvelopeAmplitude * fOneOverThreshold, fRatioMinusOne);
if (isnan(fGain))
fGain = 0;
}
/* Perform output. */
*(pfOutput++) = fInput * fGain;
}
}
/*****************************************************************************/
void
runExpander_Peak(LADSPA_Handle Instance,
unsigned long SampleCount) {
CompressorExpander * poProcessor = (CompressorExpander *)Instance;
LADSPA_Data fThreshold
= BOUNDED_BELOW(*(poProcessor->m_ppfPorts[CE_THRESHOLD]),
0);
LADSPA_Data fOneOverThreshold
= 1 / fThreshold;
LADSPA_Data fOneMinusRatio
= 1 - *(poProcessor->m_ppfPorts[CE_RATIO]);
LADSPA_Data * pfInput
= poProcessor->m_ppfPorts[CE_INPUT];
LADSPA_Data * pfOutput
= poProcessor->m_ppfPorts[CE_OUTPUT];
LADSPA_Data fEnvelopeDrag_Attack
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_ATTACK]),
poProcessor->m_fSampleRate);
LADSPA_Data fEnvelopeDrag_Decay
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_DECAY]),
poProcessor->m_fSampleRate);
LADSPA_Data &rfEnvelopeState
= poProcessor->m_fEnvelopeState;
for (unsigned long lSampleIndex = 0;
lSampleIndex < SampleCount;
lSampleIndex++) {
LADSPA_Data fInput = *(pfInput++);
LADSPA_Data fEnvelopeTarget = fabs(fInput);
if (fEnvelopeTarget > rfEnvelopeState)
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Attack
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Attack));
else
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Decay
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Decay));
/* Perform the mapping. This questions this plugin's claim of
being `hard-realtime.' */
LADSPA_Data fGain;
if (rfEnvelopeState > fThreshold)
fGain = 1;
else {
fGain = pow(rfEnvelopeState * fOneOverThreshold, fOneMinusRatio);
if (isnan(fGain))
fGain = 0;
}
/* Perform output. */
*(pfOutput++) = fInput * fGain;
}
}
/*****************************************************************************/
void
runExpander_RMS(LADSPA_Handle Instance,
unsigned long SampleCount) {
CompressorExpander * poProcessor = (CompressorExpander *)Instance;
LADSPA_Data fThreshold
= BOUNDED_BELOW(*(poProcessor->m_ppfPorts[CE_THRESHOLD]),
0);
LADSPA_Data fOneOverThreshold
= 1 / fThreshold;
LADSPA_Data fOneMinusRatio
= 1 - *(poProcessor->m_ppfPorts[CE_RATIO]);
LADSPA_Data * pfInput
= poProcessor->m_ppfPorts[CE_INPUT];
LADSPA_Data * pfOutput
= poProcessor->m_ppfPorts[CE_OUTPUT];
LADSPA_Data fEnvelopeDrag_Attack
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_ATTACK]),
poProcessor->m_fSampleRate);
LADSPA_Data fEnvelopeDrag_Decay
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_DECAY]),
poProcessor->m_fSampleRate);
LADSPA_Data &rfEnvelopeState
= poProcessor->m_fEnvelopeState;
for (unsigned long lSampleIndex = 0;
lSampleIndex < SampleCount;
lSampleIndex++) {
LADSPA_Data fInput = *(pfInput++);
LADSPA_Data fEnvelopeTarget = fInput * fInput;
if (fEnvelopeTarget > rfEnvelopeState)
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Attack
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Attack));
else
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Decay
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Decay));
LADSPA_Data fEnvelopeAmplitude = sqrt(rfEnvelopeState);
/* Perform the mapping. This questions this plugin's claim of
being `hard-realtime.' */
LADSPA_Data fGain;
if (fEnvelopeAmplitude > fThreshold)
fGain = 1;
else {
fGain = pow(fEnvelopeAmplitude * fOneOverThreshold, fOneMinusRatio);
if (isnan(fGain))
fGain = 0;
}
/* Perform output. */
*(pfOutput++) = fInput * fGain;
}
}
/*****************************************************************************/
void
runLimiter_Peak(LADSPA_Handle Instance,
unsigned long SampleCount) {
Limiter * poProcessor = (Limiter *)Instance;
LADSPA_Data fThreshold
= BOUNDED_BELOW(*(poProcessor->m_ppfPorts[LN_THRESHOLD]),
0);
LADSPA_Data * pfInput
= poProcessor->m_ppfPorts[LN_INPUT];
LADSPA_Data * pfOutput
= poProcessor->m_ppfPorts[LN_OUTPUT];
LADSPA_Data fEnvelopeDrag_Attack
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_ATTACK]),
poProcessor->m_fSampleRate);
LADSPA_Data fEnvelopeDrag_Decay
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_DECAY]),
poProcessor->m_fSampleRate);
LADSPA_Data &rfEnvelopeState
= poProcessor->m_fEnvelopeState;
for (unsigned long lSampleIndex = 0;
lSampleIndex < SampleCount;
lSampleIndex++) {
LADSPA_Data fInput = *(pfInput++);
LADSPA_Data fEnvelopeTarget = fabs(fInput);
if (fEnvelopeTarget > rfEnvelopeState)
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Attack
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Attack));
else
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Decay
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Decay));
/* Perform the mapping. This questions this plugin's claim of
being `hard-realtime.' */
LADSPA_Data fGain;
if (rfEnvelopeState < fThreshold)
fGain = 1;
else {
fGain = fThreshold / rfEnvelopeState;
if (isnan(fGain))
fGain = 0;
}
/* Perform output. */
*(pfOutput++) = fInput * fGain;
}
}
/*****************************************************************************/
void
runLimiter_RMS(LADSPA_Handle Instance,
unsigned long SampleCount) {
Limiter * poProcessor = (Limiter *)Instance;
LADSPA_Data fThreshold
= BOUNDED_BELOW(*(poProcessor->m_ppfPorts[LN_THRESHOLD]),
0);
LADSPA_Data * pfInput
= poProcessor->m_ppfPorts[LN_INPUT];
LADSPA_Data * pfOutput
= poProcessor->m_ppfPorts[LN_OUTPUT];
LADSPA_Data fEnvelopeDrag_Attack
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_ATTACK]),
poProcessor->m_fSampleRate);
LADSPA_Data fEnvelopeDrag_Decay
= calculate60dBDrag(*(poProcessor->m_ppfPorts[CE_DECAY]),
poProcessor->m_fSampleRate);
LADSPA_Data &rfEnvelopeState
= poProcessor->m_fEnvelopeState;
for (unsigned long lSampleIndex = 0;
lSampleIndex < SampleCount;
lSampleIndex++) {
LADSPA_Data fInput = *(pfInput++);
LADSPA_Data fEnvelopeTarget = fInput * fInput;
if (fEnvelopeTarget > rfEnvelopeState)
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Attack
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Attack));
else
rfEnvelopeState = (rfEnvelopeState * fEnvelopeDrag_Decay
+ fEnvelopeTarget * (1 - fEnvelopeDrag_Decay));
LADSPA_Data fEnvelopeAmplitude = sqrt(rfEnvelopeState);
/* Perform the mapping. This questions this plugin's claim of
being `hard-realtime.' */
LADSPA_Data fGain;
if (fEnvelopeAmplitude < fThreshold)
fGain = 1;
else {
fGain = fThreshold / fEnvelopeAmplitude;
if (isnan(fGain))
fGain = 0;
}
/* Perform output. */
*(pfOutput++) = fInput * fGain;
}
}
/*****************************************************************************/
void
initialise_dynamic() {
CMT_Descriptor * psDescriptor;
psDescriptor = new CMT_Descriptor
(1072,
"compress_peak",
LADSPA_PROPERTY_HARD_RT_CAPABLE,
"Simple Compressor (Peak Envelope Tracking)",
CMT_MAKER("Richard W.E. Furse"),
CMT_COPYRIGHT("2000-2002", "Richard W.E. Furse"),
NULL,
CMT_Instantiate<CompressorExpander>,
activateCompressorExpander,
runCompressor_Peak,
NULL,
NULL,
NULL);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Threshold",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_LOGARITHMIC
| LADSPA_HINT_DEFAULT_1),
0,
0);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Compression Ratio",
(LADSPA_HINT_BOUNDED_ABOVE
| LADSPA_HINT_DEFAULT_MIDDLE),
0,
1);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Attack (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Decay (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
"Input");
psDescriptor->addPort
(LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO,
"Output");
registerNewPluginDescriptor(psDescriptor);
psDescriptor = new CMT_Descriptor
(1073,
"compress_rms",
LADSPA_PROPERTY_HARD_RT_CAPABLE,
"Simple Compressor (RMS Envelope Tracking)",
CMT_MAKER("Richard W.E. Furse"),
CMT_COPYRIGHT("2000-2002", "Richard W.E. Furse"),
NULL,
CMT_Instantiate<CompressorExpander>,
activateCompressorExpander,
runCompressor_RMS,
NULL,
NULL,
NULL);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Threshold",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_LOGARITHMIC
| LADSPA_HINT_DEFAULT_1),
0,
0);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Compression Ratio",
(LADSPA_HINT_BOUNDED_ABOVE
| LADSPA_HINT_DEFAULT_MIDDLE),
0,
1);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Attack (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Decay (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
"Input");
psDescriptor->addPort
(LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO,
"Output");
registerNewPluginDescriptor(psDescriptor);
psDescriptor = new CMT_Descriptor
(1074,
"expand_peak",
LADSPA_PROPERTY_HARD_RT_CAPABLE,
"Simple Expander (Peak Envelope Tracking)",
CMT_MAKER("Richard W.E. Furse"),
CMT_COPYRIGHT("2000-2002", "Richard W.E. Furse"),
NULL,
CMT_Instantiate<CompressorExpander>,
activateCompressorExpander,
runExpander_Peak,
NULL,
NULL,
NULL);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Threshold",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_LOGARITHMIC
| LADSPA_HINT_DEFAULT_1),
0,
0);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Expansion Ratio",
(LADSPA_HINT_BOUNDED_ABOVE
| LADSPA_HINT_DEFAULT_MIDDLE),
0,
1);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Attack (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Decay (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
"Input");
psDescriptor->addPort
(LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO,
"Output");
registerNewPluginDescriptor(psDescriptor);
psDescriptor = new CMT_Descriptor
(1075,
"expand_rms",
LADSPA_PROPERTY_HARD_RT_CAPABLE,
"Simple Expander (RMS Envelope Tracking)",
CMT_MAKER("Richard W.E. Furse"),
CMT_COPYRIGHT("2000-2002", "Richard W.E. Furse"),
NULL,
CMT_Instantiate<CompressorExpander>,
activateCompressorExpander,
runExpander_RMS,
NULL,
NULL,
NULL);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Threshold",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_LOGARITHMIC
| LADSPA_HINT_DEFAULT_1),
0,
0);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Expansion Ratio",
(LADSPA_HINT_BOUNDED_ABOVE
| LADSPA_HINT_DEFAULT_MIDDLE),
0,
1);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Attack (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Decay (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
"Input");
psDescriptor->addPort
(LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO,
"Output");
registerNewPluginDescriptor(psDescriptor);
psDescriptor = new CMT_Descriptor
(1076,
"limit_peak",
LADSPA_PROPERTY_HARD_RT_CAPABLE,
"Simple Limiter (Peak Envelope Tracking)",
CMT_MAKER("Richard W.E. Furse"),
CMT_COPYRIGHT("2000-2002", "Richard W.E. Furse"),
NULL,
CMT_Instantiate<Limiter>,
activateLimiter,
runLimiter_Peak,
NULL,
NULL,
NULL);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Threshold",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_LOGARITHMIC
| LADSPA_HINT_DEFAULT_1),
0,
0);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Attack (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Decay (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
"Input");
psDescriptor->addPort
(LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO,
"Output");
registerNewPluginDescriptor(psDescriptor);
psDescriptor = new CMT_Descriptor
(1077,
"limit_rms",
LADSPA_PROPERTY_HARD_RT_CAPABLE,
"Simple Limiter (RMS Envelope Tracking)",
CMT_MAKER("Richard W.E. Furse"),
CMT_COPYRIGHT("2000-2002", "Richard W.E. Furse"),
NULL,
CMT_Instantiate<Limiter>,
activateLimiter,
runLimiter_RMS,
NULL,
NULL,
NULL);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Threshold",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_LOGARITHMIC
| LADSPA_HINT_DEFAULT_1),
0,
0);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Attack (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL,
"Output Envelope Decay (s)",
(LADSPA_HINT_BOUNDED_BELOW
| LADSPA_HINT_DEFAULT_MAXIMUM),
0,
0.1f);
psDescriptor->addPort
(LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO,
"Input");
psDescriptor->addPort
(LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO,
"Output");
registerNewPluginDescriptor(psDescriptor);
}
/*****************************************************************************/
/* EOF */
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