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/*
This LADSPA plugin provides mono and stereo filters
(c) Fraser Stuart 2009
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <ladspa.h>
#include "libinv_common.h"
#include "inv_filter.h"
/* The port numbers for the plugin: */
#define IFILTER_FREQ 0
#define IFILTER_GAIN 1
#define IFILTER_NOCLIP 2
#define IFILTER_AUDIO_IN1 3
#define IFILTER_AUDIO_OUT1 4
#define IFILTER_AUDIO_IN2 5 /* not used in mono mode */
#define IFILTER_AUDIO_OUT2 6 /* not used in mono mode */
/* The structure used to hold port connection information and state. */
typedef struct {
unsigned long SampleRate;
/* Ports */
LADSPA_Data * ControlFreq;
LADSPA_Data * ControlGain;
LADSPA_Data * ControlNoClip;
LADSPA_Data * AudioInputBuffer1;
LADSPA_Data * AudioOutputBuffer1;
LADSPA_Data * AudioInputBuffer2;
LADSPA_Data * AudioOutputBuffer2;
/* stuff we need to remember to reduce cpu */
LADSPA_Data LastFreq;
LADSPA_Data LastGain;
LADSPA_Data LastNoClip;
LADSPA_Data ConvertedFreq;
LADSPA_Data ConvertedGain;
LADSPA_Data ConvertedNoClip;
/* stuff we need to remember between calls */
LADSPA_Data Audio1Last;
LADSPA_Data Audio2Last;
} Ifilter;
/* Construct a new plugin instance. */
LADSPA_Handle instantiateIfilter(const LADSPA_Descriptor * Descriptor,unsigned long SampleRate) {
LADSPA_Handle Instance;
Ifilter * plug;
if((Instance=malloc(sizeof(Ifilter)))==NULL)
return NULL;
/* set some initial params */
plug = (Ifilter *)Instance;
/* should check SampleRate > 0 */
plug->SampleRate=SampleRate;
return Instance;
}
/* Connect a port to a data location. */
void connectPortToIfilter(LADSPA_Handle Instance,unsigned long Port, LADSPA_Data * DataLocation) {
Ifilter * plug;
plug = (Ifilter *)Instance;
switch (Port) {
case IFILTER_FREQ:
plug->ControlFreq = DataLocation;
break;
case IFILTER_GAIN:
plug->ControlGain = DataLocation;
break;
case IFILTER_NOCLIP:
plug->ControlNoClip = DataLocation;
break;
case IFILTER_AUDIO_IN1:
plug->AudioInputBuffer1 = DataLocation;
break;
case IFILTER_AUDIO_OUT1:
plug->AudioOutputBuffer1 = DataLocation;
break;
case IFILTER_AUDIO_IN2:
plug->AudioInputBuffer2 = DataLocation;
break;
case IFILTER_AUDIO_OUT2:
plug->AudioOutputBuffer2 = DataLocation;
break;
}
}
void activateIfilter(LADSPA_Handle Instance) {
Ifilter * plug;
plug = (Ifilter *)Instance;
plug->Audio1Last = 0;
plug->Audio2Last = 0;
/* defaults */
plug->LastFreq = 0.015811388; // middle on a logarithmic scale
plug->LastGain = 0;
plug->LastNoClip = 0;
plug->ConvertedFreq = convertParam(IFILTER_FREQ, plug->LastFreq, plug->SampleRate);
plug->ConvertedGain = convertParam(IFILTER_GAIN, plug->LastGain, plug->SampleRate);
plug->ConvertedNoClip = convertParam(IFILTER_NOCLIP, plug->LastNoClip, plug->SampleRate);
}
void runMonoLPFIfilter(LADSPA_Handle Instance, unsigned long SampleCount) {
LADSPA_Data (*pParamFunc)(unsigned long, LADSPA_Data, unsigned long) = NULL;
LADSPA_Data * pfAudioInput1;
LADSPA_Data * pfAudioOutput1;
LADSPA_Data fSamples,fGain,fNoClip;
LADSPA_Data fAudio1,fAudio1Sum;
Ifilter * plug;
unsigned long lSampleIndex;
plug = (Ifilter *)Instance;
pParamFunc = &convertParam;
checkParamChange(IFILTER_FREQ, plug->ControlFreq, &(plug->LastFreq), &(plug->ConvertedFreq), plug->SampleRate, pParamFunc);
checkParamChange(IFILTER_GAIN, plug->ControlGain, &(plug->LastGain), &(plug->ConvertedGain), plug->SampleRate, pParamFunc);
checkParamChange(IFILTER_NOCLIP, plug->ControlNoClip, &(plug->LastNoClip), &(plug->ConvertedNoClip), plug->SampleRate, pParamFunc);
fSamples = plug->ConvertedFreq;
fGain = plug->ConvertedGain;
fNoClip = plug->ConvertedNoClip;
pfAudioInput1 = plug->AudioInputBuffer1;
pfAudioOutput1 = plug->AudioOutputBuffer1;
fAudio1Sum = plug->Audio1Last;
for (lSampleIndex = 0; lSampleIndex < SampleCount; lSampleIndex++)
{
fAudio1Sum = ((fSamples-1) * fAudio1Sum + *(pfAudioInput1++)) / fSamples;
fAudio1 = fAudio1Sum*fGain;
*(pfAudioOutput1++)=fNoClip > 0 ? InoClip(fAudio1) : fAudio1;
}
plug->Audio1Last = (fabs(fAudio1Sum)<1.0e-10) ? 0.f : fAudio1Sum; // and store values for next loop
}
void runMonoHPFIfilter(LADSPA_Handle Instance, unsigned long SampleCount) {
LADSPA_Data (*pParamFunc)(unsigned long, LADSPA_Data, unsigned long) = NULL;
LADSPA_Data * pfAudioInput1;
LADSPA_Data * pfAudioOutput1;
LADSPA_Data fSamples,fGain,fNoClip;
LADSPA_Data fAudio1,fAudio1Sum;
Ifilter * plug;
unsigned long lSampleIndex;
plug = (Ifilter *)Instance;
pParamFunc = &convertParam;
checkParamChange(IFILTER_FREQ, plug->ControlFreq, &(plug->LastFreq), &(plug->ConvertedFreq), plug->SampleRate, pParamFunc);
checkParamChange(IFILTER_GAIN, plug->ControlGain, &(plug->LastGain), &(plug->ConvertedGain), plug->SampleRate, pParamFunc);
checkParamChange(IFILTER_NOCLIP, plug->ControlNoClip, &(plug->LastNoClip), &(plug->ConvertedNoClip), plug->SampleRate, pParamFunc);
fSamples = plug->ConvertedFreq;
fGain = plug->ConvertedGain;
fNoClip = plug->ConvertedNoClip;
pfAudioInput1 = plug->AudioInputBuffer1;
pfAudioOutput1 = plug->AudioOutputBuffer1;
fAudio1Sum = plug->Audio1Last;
for (lSampleIndex = 0; lSampleIndex < SampleCount; lSampleIndex++)
{
fAudio1 = *(pfAudioInput1++);
fAudio1Sum = ((fSamples-1) * fAudio1Sum + fAudio1) / fSamples;
fAudio1 = (fAudio1 - fAudio1Sum)*fGain;
*(pfAudioOutput1++)=fNoClip > 0 ? InoClip(fAudio1) : fAudio1;
}
plug->Audio1Last = (fabs(fAudio1Sum)<1.0e-10) ? 0.f : fAudio1Sum; // and store values for next loop
}
void runStereoLPFIfilter(LADSPA_Handle Instance,unsigned long SampleCount) {
LADSPA_Data (*pParamFunc)(unsigned long, LADSPA_Data, unsigned long) = NULL;
LADSPA_Data * pfAudioInput1;
LADSPA_Data * pfAudioInput2;
LADSPA_Data * pfAudioOutput1;
LADSPA_Data * pfAudioOutput2;
LADSPA_Data fSamples,fGain,fNoClip;
LADSPA_Data fAudio1,fAudio2,fAudio1Sum,fAudio2Sum;
Ifilter * plug;
unsigned long lSampleIndex;
plug = (Ifilter *)Instance;
pParamFunc = &convertParam;
checkParamChange(IFILTER_FREQ, plug->ControlFreq, &(plug->LastFreq), &(plug->ConvertedFreq), plug->SampleRate, pParamFunc);
checkParamChange(IFILTER_GAIN, plug->ControlGain, &(plug->LastGain), &(plug->ConvertedGain), plug->SampleRate, pParamFunc);
checkParamChange(IFILTER_NOCLIP, plug->ControlNoClip, &(plug->LastNoClip), &(plug->ConvertedNoClip), plug->SampleRate, pParamFunc);
fSamples = plug->ConvertedFreq;
fGain = plug->ConvertedGain;
fNoClip = plug->ConvertedNoClip;
pfAudioInput1 = plug->AudioInputBuffer1;
pfAudioInput2 = plug->AudioInputBuffer2;
pfAudioOutput1 = plug->AudioOutputBuffer1;
pfAudioOutput2 = plug->AudioOutputBuffer2;
fAudio1Sum = plug->Audio1Last;
fAudio2Sum = plug->Audio2Last;
for (lSampleIndex = 0; lSampleIndex < SampleCount; lSampleIndex++) {
fAudio1Sum = ((fSamples-1) * fAudio1Sum + *(pfAudioInput1++)) / fSamples;
fAudio2Sum = ((fSamples-1) * fAudio2Sum + *(pfAudioInput2++)) / fSamples;
fAudio1 = fAudio1Sum*fGain;
fAudio2 = fAudio2Sum*fGain;
*(pfAudioOutput1++)=fNoClip > 0 ? InoClip(fAudio1) : fAudio1;
*(pfAudioOutput2++)=fNoClip > 0 ? InoClip(fAudio2) : fAudio2;
}
plug->Audio1Last = (fabs(fAudio1Sum)<1.0e-10) ? 0.f : fAudio1Sum; // and store values for next loop
plug->Audio2Last = (fabs(fAudio2Sum)<1.0e-10) ? 0.f : fAudio2Sum; // and store values for next loop
}
void runStereoHPFIfilter(LADSPA_Handle Instance, unsigned long SampleCount) {
LADSPA_Data (*pParamFunc)(unsigned long, LADSPA_Data, unsigned long) = NULL;
LADSPA_Data * pfAudioInput1;
LADSPA_Data * pfAudioInput2;
LADSPA_Data * pfAudioOutput1;
LADSPA_Data * pfAudioOutput2;
LADSPA_Data fSamples,fGain,fNoClip;
LADSPA_Data fAudio1,fAudio2,fAudio1Sum,fAudio2Sum;
Ifilter * plug;
unsigned long lSampleIndex;
plug = (Ifilter *)Instance;
pParamFunc = &convertParam;
checkParamChange(IFILTER_FREQ, plug->ControlFreq, &(plug->LastFreq), &(plug->ConvertedFreq), plug->SampleRate, pParamFunc);
checkParamChange(IFILTER_GAIN, plug->ControlGain, &(plug->LastGain), &(plug->ConvertedGain), plug->SampleRate, pParamFunc);
checkParamChange(IFILTER_NOCLIP, plug->ControlNoClip, &(plug->LastNoClip), &(plug->ConvertedNoClip), plug->SampleRate, pParamFunc);
fSamples = plug->ConvertedFreq;
fGain = plug->ConvertedGain;
fNoClip = plug->ConvertedNoClip;
pfAudioInput1 = plug->AudioInputBuffer1;
pfAudioInput2 = plug->AudioInputBuffer2;
pfAudioOutput1 = plug->AudioOutputBuffer1;
pfAudioOutput2 = plug->AudioOutputBuffer2;
fAudio1Sum = plug->Audio1Last;
fAudio2Sum = plug->Audio2Last;
for (lSampleIndex = 0; lSampleIndex < SampleCount; lSampleIndex++) {
fAudio1 = *(pfAudioInput1++);
fAudio2 = *(pfAudioInput2++);
fAudio1Sum = ((fSamples-1) * fAudio1Sum + fAudio1) / fSamples;
fAudio2Sum = ((fSamples-1) * fAudio2Sum + fAudio2) / fSamples;
fAudio1 = (fAudio1 - fAudio1Sum)*fGain;
fAudio2 = (fAudio2 - fAudio2Sum)*fGain;
*(pfAudioOutput1++)=fNoClip > 0 ? InoClip(fAudio1) : fAudio1;
*(pfAudioOutput2++)=fNoClip > 0 ? InoClip(fAudio2) : fAudio2;
}
plug->Audio1Last = (fabs(fAudio1Sum)<1.0e-10) ? 0.f : fAudio1Sum; // and store values for next loop
plug->Audio2Last = (fabs(fAudio2Sum)<1.0e-10) ? 0.f : fAudio2Sum; // and store values for next loop
}
/* Throw away. */
void cleanupIfilter(LADSPA_Handle Instance) {
free(Instance);
}
LADSPA_Descriptor * g_psMonoLPFDescriptor = NULL;
LADSPA_Descriptor * g_psMonoHPFDescriptor = NULL;
LADSPA_Descriptor * g_psStereoLPFDescriptor = NULL;
LADSPA_Descriptor * g_psStereoHPFDescriptor = NULL;
/* _init() is called automatically when the plugin library is first loaded. */
void _init() {
char ** pcPortNames;
LADSPA_PortDescriptor * piPortDescriptors;
LADSPA_PortRangeHint * psPortRangeHints;
g_psMonoLPFDescriptor = (LADSPA_Descriptor *)malloc(sizeof(LADSPA_Descriptor));
g_psMonoHPFDescriptor = (LADSPA_Descriptor *)malloc(sizeof(LADSPA_Descriptor));
g_psStereoLPFDescriptor = (LADSPA_Descriptor *)malloc(sizeof(LADSPA_Descriptor));
g_psStereoHPFDescriptor = (LADSPA_Descriptor *)malloc(sizeof(LADSPA_Descriptor));
if (g_psMonoLPFDescriptor) {
g_psMonoLPFDescriptor->UniqueID = 3302;
g_psMonoLPFDescriptor->Properties = LADSPA_PROPERTY_HARD_RT_CAPABLE;
g_psMonoLPFDescriptor->Label = strdup("invada_lp_mono_filter_module_0_1");
g_psMonoLPFDescriptor->Name = strdup(":: Invada :: Filter - Low Pass Mono");
g_psMonoLPFDescriptor->Maker = strdup("Fraser At Invada Records dot Com");
g_psMonoLPFDescriptor->Copyright = strdup("(c) Invada Records");
g_psMonoLPFDescriptor->PortCount = 5;
piPortDescriptors = (LADSPA_PortDescriptor *)calloc(5, sizeof(LADSPA_PortDescriptor));
g_psMonoLPFDescriptor->PortDescriptors = (const LADSPA_PortDescriptor *)piPortDescriptors;
piPortDescriptors[IFILTER_FREQ] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_GAIN] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_NOCLIP] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_AUDIO_IN1] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
piPortDescriptors[IFILTER_AUDIO_OUT1] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
pcPortNames = (char **)calloc(5, sizeof(char *));
g_psMonoLPFDescriptor->PortNames = (const char **)pcPortNames;
pcPortNames[IFILTER_FREQ] = strdup("Frequency (Hz)");
pcPortNames[IFILTER_GAIN] = strdup("Gain (dB)");
pcPortNames[IFILTER_NOCLIP] = strdup("Soft Clip");
pcPortNames[IFILTER_AUDIO_IN1] = strdup("Input");
pcPortNames[IFILTER_AUDIO_OUT1] = strdup("Output");
psPortRangeHints = ((LADSPA_PortRangeHint *) calloc(5, sizeof(LADSPA_PortRangeHint)));
g_psMonoLPFDescriptor->PortRangeHints = (const LADSPA_PortRangeHint *)psPortRangeHints;
psPortRangeHints[IFILTER_FREQ].HintDescriptor = (LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_LOGARITHMIC |
LADSPA_HINT_SAMPLE_RATE |
LADSPA_HINT_DEFAULT_MIDDLE);
psPortRangeHints[IFILTER_FREQ].LowerBound = 0.0005;
psPortRangeHints[IFILTER_FREQ].UpperBound = 0.5;
psPortRangeHints[IFILTER_GAIN].HintDescriptor = (LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_0 );
psPortRangeHints[IFILTER_GAIN].LowerBound = 0;
psPortRangeHints[IFILTER_GAIN].UpperBound = 12;
psPortRangeHints[IFILTER_NOCLIP].HintDescriptor = (LADSPA_HINT_TOGGLED |
LADSPA_HINT_DEFAULT_0);
psPortRangeHints[IFILTER_AUDIO_IN1].HintDescriptor = 0;
psPortRangeHints[IFILTER_AUDIO_OUT1].HintDescriptor = 0;
g_psMonoLPFDescriptor->instantiate = instantiateIfilter;
g_psMonoLPFDescriptor->connect_port = connectPortToIfilter;
g_psMonoLPFDescriptor->activate = activateIfilter;
g_psMonoLPFDescriptor->run = runMonoLPFIfilter;
g_psMonoLPFDescriptor->run_adding = NULL;
g_psMonoLPFDescriptor->set_run_adding_gain = NULL;
g_psMonoLPFDescriptor->deactivate = NULL;
g_psMonoLPFDescriptor->cleanup = cleanupIfilter;
}
if (g_psMonoHPFDescriptor) {
g_psMonoHPFDescriptor->UniqueID = 3303;
g_psMonoHPFDescriptor->Properties = LADSPA_PROPERTY_HARD_RT_CAPABLE;
g_psMonoHPFDescriptor->Label = strdup("invada_hp_mono_filter_module_0_1");
g_psMonoHPFDescriptor->Name = strdup(":: Invada :: Filter - High Pass Mono");
g_psMonoHPFDescriptor->Maker = strdup("Fraser At Invada Records dot Com");
g_psMonoHPFDescriptor->Copyright = strdup("(c) Invada Records");
g_psMonoHPFDescriptor->PortCount = 5;
piPortDescriptors = (LADSPA_PortDescriptor *)calloc(5, sizeof(LADSPA_PortDescriptor));
g_psMonoHPFDescriptor->PortDescriptors = (const LADSPA_PortDescriptor *)piPortDescriptors;
piPortDescriptors[IFILTER_FREQ] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_GAIN] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_NOCLIP] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_AUDIO_IN1] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
piPortDescriptors[IFILTER_AUDIO_OUT1] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
pcPortNames = (char **)calloc(5, sizeof(char *));
g_psMonoHPFDescriptor->PortNames = (const char **)pcPortNames;
pcPortNames[IFILTER_FREQ] = strdup("Frequency (Hz)");
pcPortNames[IFILTER_GAIN] = strdup("Gain (dB)");
pcPortNames[IFILTER_NOCLIP] = strdup("Soft Clip");
pcPortNames[IFILTER_AUDIO_IN1] = strdup("Input");
pcPortNames[IFILTER_AUDIO_OUT1] = strdup("Output");
psPortRangeHints = ((LADSPA_PortRangeHint *) calloc(5, sizeof(LADSPA_PortRangeHint)));
g_psMonoHPFDescriptor->PortRangeHints = (const LADSPA_PortRangeHint *)psPortRangeHints;
psPortRangeHints[IFILTER_FREQ].HintDescriptor = (LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_LOGARITHMIC |
LADSPA_HINT_SAMPLE_RATE |
LADSPA_HINT_DEFAULT_MIDDLE);
psPortRangeHints[IFILTER_FREQ].LowerBound = 0.0005;
psPortRangeHints[IFILTER_FREQ].UpperBound = 0.5;
psPortRangeHints[IFILTER_GAIN].HintDescriptor = (LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_0 );
psPortRangeHints[IFILTER_GAIN].LowerBound = 0;
psPortRangeHints[IFILTER_GAIN].UpperBound = 12;
psPortRangeHints[IFILTER_NOCLIP].HintDescriptor = (LADSPA_HINT_TOGGLED |
LADSPA_HINT_DEFAULT_0);
psPortRangeHints[IFILTER_AUDIO_IN1].HintDescriptor = 0;
psPortRangeHints[IFILTER_AUDIO_OUT1].HintDescriptor = 0;
g_psMonoHPFDescriptor->instantiate = instantiateIfilter;
g_psMonoHPFDescriptor->connect_port = connectPortToIfilter;
g_psMonoHPFDescriptor->activate = activateIfilter;
g_psMonoHPFDescriptor->run = runMonoHPFIfilter;
g_psMonoHPFDescriptor->run_adding = NULL;
g_psMonoHPFDescriptor->set_run_adding_gain = NULL;
g_psMonoHPFDescriptor->deactivate = NULL;
g_psMonoHPFDescriptor->cleanup = cleanupIfilter;
}
if (g_psStereoLPFDescriptor) {
g_psStereoLPFDescriptor->UniqueID = 3304;
g_psStereoLPFDescriptor->Properties = LADSPA_PROPERTY_HARD_RT_CAPABLE;
g_psStereoLPFDescriptor->Label = strdup("invada_lp_stereo_filter_module_0_1");
g_psStereoLPFDescriptor->Name = strdup(":: Invada :: Filter - Low Pass Stereo");
g_psStereoLPFDescriptor->Maker = strdup("Fraser At Invada Records dot Com");
g_psStereoLPFDescriptor->Copyright = strdup("(c) Invada Records");
g_psStereoLPFDescriptor->PortCount = 7;
piPortDescriptors = (LADSPA_PortDescriptor *)calloc(7, sizeof(LADSPA_PortDescriptor));
g_psStereoLPFDescriptor->PortDescriptors = (const LADSPA_PortDescriptor *)piPortDescriptors;
piPortDescriptors[IFILTER_FREQ] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_GAIN] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_NOCLIP] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_AUDIO_IN1] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
piPortDescriptors[IFILTER_AUDIO_OUT1] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
piPortDescriptors[IFILTER_AUDIO_IN2] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
piPortDescriptors[IFILTER_AUDIO_OUT2] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
pcPortNames = (char **)calloc(7, sizeof(char *));
g_psStereoLPFDescriptor->PortNames = (const char **)pcPortNames;
pcPortNames[IFILTER_FREQ] = strdup("Frequency (Hz)");
pcPortNames[IFILTER_GAIN] = strdup("Gain (dB)");
pcPortNames[IFILTER_NOCLIP] = strdup("Soft Clip");
pcPortNames[IFILTER_AUDIO_IN1] = strdup("Input (Left)");
pcPortNames[IFILTER_AUDIO_OUT1] = strdup("Output (Left)");
pcPortNames[IFILTER_AUDIO_IN2] = strdup("Input (Right)");
pcPortNames[IFILTER_AUDIO_OUT2] = strdup("Output (Right)");
psPortRangeHints = ((LADSPA_PortRangeHint *) calloc(7, sizeof(LADSPA_PortRangeHint)));
g_psStereoLPFDescriptor->PortRangeHints = (const LADSPA_PortRangeHint *)psPortRangeHints;
psPortRangeHints[IFILTER_FREQ].HintDescriptor = (LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_LOGARITHMIC |
LADSPA_HINT_SAMPLE_RATE |
LADSPA_HINT_DEFAULT_MIDDLE);
psPortRangeHints[IFILTER_FREQ].LowerBound = 0.0005;
psPortRangeHints[IFILTER_FREQ].UpperBound = 0.5;
psPortRangeHints[IFILTER_GAIN].HintDescriptor = (LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_0 );
psPortRangeHints[IFILTER_GAIN].LowerBound = 0;
psPortRangeHints[IFILTER_GAIN].UpperBound = 12;
psPortRangeHints[IFILTER_NOCLIP].HintDescriptor = (LADSPA_HINT_TOGGLED |
LADSPA_HINT_DEFAULT_0);
psPortRangeHints[IFILTER_AUDIO_IN1].HintDescriptor = 0;
psPortRangeHints[IFILTER_AUDIO_OUT1].HintDescriptor = 0;
psPortRangeHints[IFILTER_AUDIO_IN2].HintDescriptor = 0;
psPortRangeHints[IFILTER_AUDIO_OUT2].HintDescriptor = 0;
g_psStereoLPFDescriptor->instantiate = instantiateIfilter;
g_psStereoLPFDescriptor->connect_port = connectPortToIfilter;
g_psStereoLPFDescriptor->activate = activateIfilter;
g_psStereoLPFDescriptor->run = runStereoLPFIfilter;
g_psStereoLPFDescriptor->run_adding = NULL;
g_psStereoLPFDescriptor->set_run_adding_gain = NULL;
g_psStereoLPFDescriptor->deactivate = NULL;
g_psStereoLPFDescriptor->cleanup = cleanupIfilter;
}
if (g_psStereoHPFDescriptor) {
g_psStereoHPFDescriptor->UniqueID = 3305;
g_psStereoHPFDescriptor->Properties = LADSPA_PROPERTY_HARD_RT_CAPABLE;
g_psStereoHPFDescriptor->Label = strdup("invada_hp_stereo_filter_module_0_1");
g_psStereoHPFDescriptor->Name = strdup(":: Invada :: Filter - High Pass Stereo");
g_psStereoHPFDescriptor->Maker = strdup("Fraser At Invada Records dot Com");
g_psStereoHPFDescriptor->Copyright = strdup("(c) Invada Records");
g_psStereoHPFDescriptor->PortCount = 7;
piPortDescriptors = (LADSPA_PortDescriptor *)calloc(7, sizeof(LADSPA_PortDescriptor));
g_psStereoHPFDescriptor->PortDescriptors = (const LADSPA_PortDescriptor *)piPortDescriptors;
piPortDescriptors[IFILTER_FREQ] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_GAIN] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_NOCLIP] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
piPortDescriptors[IFILTER_AUDIO_IN1] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
piPortDescriptors[IFILTER_AUDIO_OUT1] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
piPortDescriptors[IFILTER_AUDIO_IN2] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
piPortDescriptors[IFILTER_AUDIO_OUT2] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
pcPortNames = (char **)calloc(7, sizeof(char *));
g_psStereoHPFDescriptor->PortNames = (const char **)pcPortNames;
pcPortNames[IFILTER_FREQ] = strdup("Frequency (Hz)");
pcPortNames[IFILTER_GAIN] = strdup("Gain (dB)");
pcPortNames[IFILTER_NOCLIP] = strdup("Soft Clip");
pcPortNames[IFILTER_AUDIO_IN1] = strdup("Input (Left)");
pcPortNames[IFILTER_AUDIO_OUT1] = strdup("Output (Left)");
pcPortNames[IFILTER_AUDIO_IN2] = strdup("Input (Right)");
pcPortNames[IFILTER_AUDIO_OUT2] = strdup("Output (Right)");
psPortRangeHints = ((LADSPA_PortRangeHint *) calloc(7, sizeof(LADSPA_PortRangeHint)));
g_psStereoHPFDescriptor->PortRangeHints = (const LADSPA_PortRangeHint *)psPortRangeHints;
psPortRangeHints[IFILTER_FREQ].HintDescriptor = (LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_LOGARITHMIC |
LADSPA_HINT_SAMPLE_RATE |
LADSPA_HINT_DEFAULT_MIDDLE);
psPortRangeHints[IFILTER_FREQ].LowerBound = 0.0005;
psPortRangeHints[IFILTER_FREQ].UpperBound = 0.5;
psPortRangeHints[IFILTER_GAIN].HintDescriptor = (LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_DEFAULT_0 );
psPortRangeHints[IFILTER_GAIN].LowerBound = 0;
psPortRangeHints[IFILTER_GAIN].UpperBound = 12;
psPortRangeHints[IFILTER_NOCLIP].HintDescriptor = (LADSPA_HINT_TOGGLED |
LADSPA_HINT_DEFAULT_0);
psPortRangeHints[IFILTER_AUDIO_IN1].HintDescriptor = 0;
psPortRangeHints[IFILTER_AUDIO_OUT1].HintDescriptor = 0;
psPortRangeHints[IFILTER_AUDIO_IN2].HintDescriptor = 0;
psPortRangeHints[IFILTER_AUDIO_OUT2].HintDescriptor = 0;
g_psStereoHPFDescriptor->instantiate = instantiateIfilter;
g_psStereoHPFDescriptor->connect_port = connectPortToIfilter;
g_psStereoHPFDescriptor->activate = activateIfilter;
g_psStereoHPFDescriptor->run = runStereoHPFIfilter;
g_psStereoHPFDescriptor->run_adding = NULL;
g_psStereoHPFDescriptor->set_run_adding_gain = NULL;
g_psStereoHPFDescriptor->deactivate = NULL;
g_psStereoHPFDescriptor->cleanup = cleanupIfilter;
}
}
void deleteDescriptor(LADSPA_Descriptor * psDescriptor) {
unsigned long lIndex;
if (psDescriptor) {
free((char *)psDescriptor->Label);
free((char *)psDescriptor->Name);
free((char *)psDescriptor->Maker);
free((char *)psDescriptor->Copyright);
free((LADSPA_PortDescriptor *)psDescriptor->PortDescriptors);
for (lIndex = 0; lIndex < psDescriptor->PortCount; lIndex++)
free((char *)(psDescriptor->PortNames[lIndex]));
free((char **)psDescriptor->PortNames);
free((LADSPA_PortRangeHint *)psDescriptor->PortRangeHints);
free(psDescriptor);
}
}
/* _fini() is called automatically when the library is unloaded. */
void _fini() {
deleteDescriptor(g_psMonoLPFDescriptor);
deleteDescriptor(g_psMonoHPFDescriptor);
deleteDescriptor(g_psStereoLPFDescriptor);
deleteDescriptor(g_psStereoHPFDescriptor);
}
/* Return a descriptor of the requested plugin type. */
const LADSPA_Descriptor * ladspa_descriptor(unsigned long Index) {
switch (Index) {
case 0:
return g_psMonoLPFDescriptor;
case 1:
return g_psMonoHPFDescriptor;
case 2:
return g_psStereoLPFDescriptor;
case 3:
return g_psStereoHPFDescriptor;
default:
return NULL;
}
}
LADSPA_Data convertParam(unsigned long param, LADSPA_Data value, unsigned long sr) {
LADSPA_Data temp;
LADSPA_Data result;
switch(param)
{
case IFILTER_FREQ:
temp = value / (LADSPA_Data)sr;
if (temp < 0.0005)
result = 1000;
else if (temp <= 0.5)
result = 1/(2*temp);
else
result=1;
break;
case IFILTER_GAIN:
if(value<0)
result= 1;
else if (value < 12)
result = pow(10,value/20);
else
result= pow(10,0.6);
break;
case IFILTER_NOCLIP:
if(value<0.5)
result= 0;
else
result= 1;
break;
default:
result=0;
break;
}
return result;
}
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