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pseudoquadroEC.c
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#include <stdlib.h>
#include <string.h>
#include <ladspa.h>
#define PSEUDOQUADRO_INPUT1 0
#define PSEUDOQUADRO_INPUT2 1
#define PSEUDOQUADRO_OUT1 2
#define PSEUDOQUADRO_OUT2 3
#define PSEUDOQUADRO_OUT3 4
#define PSEUDOQUADRO_OUT4 5
#define PSEUDOQUADRO_OUT5 6
#define PSEUDOQUADRO_REARGAIN 7
#define PSEUDOQUADRO_CENTREGAIN 8
static LADSPA_Descriptor *pseudoquadroDescriptor = NULL;
typedef struct {
LADSPA_Data *input1;
LADSPA_Data *input2;
LADSPA_Data *out1;
LADSPA_Data *out2;
LADSPA_Data *out3;
LADSPA_Data *out4;
LADSPA_Data *out5;
LADSPA_Data *reargain;
LADSPA_Data *centregain;
} Pseudoquadro;
const LADSPA_Descriptor* ladspa_descriptor(unsigned long index) {
switch (index) {
case 0:
return pseudoquadroDescriptor;
default:
return NULL;
}
}
static void cleanupPseudoquadro(LADSPA_Handle instance) {
free(instance);
}
static void connectPortPseudoquadro(
LADSPA_Handle instance,
unsigned long port,
LADSPA_Data *data) {
Pseudoquadro *plugin;
plugin = (Pseudoquadro *)instance;
switch (port) {
case PSEUDOQUADRO_INPUT1:
plugin->input1 = data;
break;
case PSEUDOQUADRO_INPUT2:
plugin->input2 = data;
break;
case PSEUDOQUADRO_OUT1:
plugin->out1 = data;
break;
case PSEUDOQUADRO_OUT2:
plugin->out2 = data;
break;
case PSEUDOQUADRO_OUT3:
plugin->out3 = data;
break;
case PSEUDOQUADRO_OUT4:
plugin->out4 = data;
break;
case PSEUDOQUADRO_OUT5:
plugin->out5 = data;
break;
case PSEUDOQUADRO_REARGAIN:
plugin->reargain = data;
break;
case PSEUDOQUADRO_CENTREGAIN:
plugin->centregain = data;
break;
}
}
static LADSPA_Handle instantiatePseudoquadro(const LADSPA_Descriptor *descriptor, unsigned long s_rate) {
Pseudoquadro *plugin_data = (Pseudoquadro *)malloc(sizeof(Pseudoquadro));
return (LADSPA_Handle)plugin_data;
}
static void runPseudoquadro(LADSPA_Handle instance, unsigned long sample_count) {
Pseudoquadro *plugin_data = (Pseudoquadro *)instance;
/* Input 1 (array of floats of length sample_count) */
const LADSPA_Data * const input1 = plugin_data->input1;
/* Input 2 (array of floats of length sample_count) */
const LADSPA_Data * const input2 = plugin_data->input2;
/* Output 1 (array of floats of length sample_count) */
LADSPA_Data * const out1 = plugin_data->out1;
/* Output 2 (array of floats of length sample_count) */
LADSPA_Data * const out2 = plugin_data->out2;
/* Output 3 (array of floats of length sample_count) */
LADSPA_Data * const out3 = plugin_data->out3;
/* Output 4 (array of floats of length sample_count) */
LADSPA_Data * const out4 = plugin_data->out4;
/* Output 5 (array of floats of length sample_count) */
LADSPA_Data * const out5 = plugin_data->out5;
/* rear amplitude (linear [0..100]) */
const LADSPA_Data reargain = *(plugin_data->reargain);
/* centre amplitude (linear [0..100]) */
const LADSPA_Data centregain = *(plugin_data->centregain);
unsigned long pos;
double coef = (double) reargain / 100.0;
double coef2 = (double) centregain / 100.0;
for (pos = 0; pos < sample_count; pos++) {
const LADSPA_Data in1 = input1[pos];
const LADSPA_Data in2 = input2[pos];
out1[pos] = in1;
out2[pos] = in2;
out3[pos] = coef * (in1/2 - in2/2);
out4[pos] = coef * (in2/2 - in1/2);
out5[pos] = (-in1 - in2) * coef2;
}
}
static void runaddingPseudoquadro(LADSPA_Handle instance, unsigned long sample_count) {
Pseudoquadro *plugin_data = (Pseudoquadro *)instance;
/* Input 1 (array of floats of length sample_count) */
const LADSPA_Data * const input1 = plugin_data->input1;
/* Input 2 (array of floats of length sample_count) */
const LADSPA_Data * const input2 = plugin_data->input2;
/* Output 1 (array of floats of length sample_count) */
LADSPA_Data * const out1 = plugin_data->out1;
/* Output 2 (array of floats of length sample_count) */
LADSPA_Data * const out2 = plugin_data->out2;
/* Output 3 (array of floats of length sample_count) */
LADSPA_Data * const out3 = plugin_data->out3;
/* Output 4 (array of floats of length sample_count) */
LADSPA_Data * const out4 = plugin_data->out4;
/* Output 5 (array of floats of length sample_count) */
LADSPA_Data * const out5 = plugin_data->out5;
/* rear amplitude (linear [0..100]) */
const LADSPA_Data reargain = *(plugin_data->reargain);
/* centre amplitude (linear [0..100]) */
const LADSPA_Data centregain = *(plugin_data->centregain);
unsigned long pos;
double coef = (double) reargain / 100.0;
double coef2 = (double) centregain / 100.0;
for (pos = 0; pos < sample_count; pos++) {
const LADSPA_Data in1 = input1[pos];
const LADSPA_Data in2 = input2[pos];
out1[pos] = in1;
out2[pos] = in2;
out3[pos] = coef * (in1/2 - in2/2) + out3[pos];
out4[pos] = coef * (in2/2 - in1/2) + out4[pos];
out5[pos] = (-in1 - in2) * coef2 + out5[pos];
}
}
void _init() {
char **port_names;
LADSPA_PortDescriptor *port_descriptors;
LADSPA_PortRangeHint *port_range_hints;
#define D_(s) (s)
pseudoquadroDescriptor = (LADSPA_Descriptor *)malloc(sizeof(LADSPA_Descriptor));
if (pseudoquadroDescriptor) {
pseudoquadroDescriptor->UniqueID = 3823;
pseudoquadroDescriptor->Label = "pseudoquadroEC";
pseudoquadroDescriptor->Properties = LADSPA_PROPERTY_HARD_RT_CAPABLE;
pseudoquadroDescriptor->Name = D_("Stereo to pseudoquadro with centre stereobase expander");
pseudoquadroDescriptor->Maker = "Markko Merzin";
pseudoquadroDescriptor->Copyright = "GPL";
pseudoquadroDescriptor->PortCount = 9;
port_descriptors = (LADSPA_PortDescriptor *)calloc(9, sizeof(LADSPA_PortDescriptor));
pseudoquadroDescriptor->PortDescriptors = (const LADSPA_PortDescriptor *)port_descriptors;
port_range_hints = (LADSPA_PortRangeHint *)calloc(9, sizeof(LADSPA_PortRangeHint));
pseudoquadroDescriptor->PortRangeHints = (const LADSPA_PortRangeHint *)port_range_hints;
port_names = (char **)calloc(9, sizeof(char*));
pseudoquadroDescriptor->PortNames = (const char **)port_names;
/* Parameters for Input 1 */
port_descriptors[PSEUDOQUADRO_INPUT1] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
port_names[PSEUDOQUADRO_INPUT1] = D_("Input 1");
port_range_hints[PSEUDOQUADRO_INPUT1].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE;
port_range_hints[PSEUDOQUADRO_INPUT1].LowerBound = -1;
port_range_hints[PSEUDOQUADRO_INPUT1].UpperBound = +1;
/* Parameters for Input 2 */
port_descriptors[PSEUDOQUADRO_INPUT2] = LADSPA_PORT_INPUT | LADSPA_PORT_AUDIO;
port_names[PSEUDOQUADRO_INPUT2] = D_("Input 2");
port_range_hints[PSEUDOQUADRO_INPUT2].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE;
port_range_hints[PSEUDOQUADRO_INPUT2].LowerBound = -1;
port_range_hints[PSEUDOQUADRO_INPUT2].UpperBound = +1;
/* Parameters for Output 1 */
port_descriptors[PSEUDOQUADRO_OUT1] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
port_names[PSEUDOQUADRO_OUT1] = D_("Output 1");
port_range_hints[PSEUDOQUADRO_OUT1].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE;
port_range_hints[PSEUDOQUADRO_OUT1].LowerBound = -1;
port_range_hints[PSEUDOQUADRO_OUT1].UpperBound = +1;
/* Parameters for Output 2 */
port_descriptors[PSEUDOQUADRO_OUT2] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
port_names[PSEUDOQUADRO_OUT2] = D_("Output 2");
port_range_hints[PSEUDOQUADRO_OUT2].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE;
port_range_hints[PSEUDOQUADRO_OUT2].LowerBound = -1;
port_range_hints[PSEUDOQUADRO_OUT2].UpperBound = +1;
/* Parameters for Output 3 */
port_descriptors[PSEUDOQUADRO_OUT3] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
port_names[PSEUDOQUADRO_OUT3] = D_("Output 3");
port_range_hints[PSEUDOQUADRO_OUT3].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE;
port_range_hints[PSEUDOQUADRO_OUT3].LowerBound = -1;
port_range_hints[PSEUDOQUADRO_OUT3].UpperBound = +1;
/* Parameters for Output 4 */
port_descriptors[PSEUDOQUADRO_OUT4] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
port_names[PSEUDOQUADRO_OUT4] = D_("Output 4");
port_range_hints[PSEUDOQUADRO_OUT4].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE;
port_range_hints[PSEUDOQUADRO_OUT4].LowerBound = -1;
port_range_hints[PSEUDOQUADRO_OUT4].UpperBound = +1;
/* Parameters for Output 5 */
port_descriptors[PSEUDOQUADRO_OUT5] = LADSPA_PORT_OUTPUT | LADSPA_PORT_AUDIO;
port_names[PSEUDOQUADRO_OUT5] = D_("Output 5");
port_range_hints[PSEUDOQUADRO_OUT5].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE;
port_range_hints[PSEUDOQUADRO_OUT5].LowerBound = -1;
port_range_hints[PSEUDOQUADRO_OUT5].UpperBound = +1;
/* Parameters for Rear amplitude */
port_descriptors[PSEUDOQUADRO_REARGAIN] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_names[PSEUDOQUADRO_REARGAIN] = D_("Rear amplitude [0..100]");
port_range_hints[PSEUDOQUADRO_REARGAIN].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE | LADSPA_HINT_DEFAULT_0;
port_range_hints[PSEUDOQUADRO_REARGAIN].LowerBound = 0;
port_range_hints[PSEUDOQUADRO_REARGAIN].UpperBound = 100;
/* Parameters for Centre amplitude */
port_descriptors[PSEUDOQUADRO_CENTREGAIN] = LADSPA_PORT_INPUT | LADSPA_PORT_CONTROL;
port_names[PSEUDOQUADRO_CENTREGAIN] = D_("Centre amplitude [0..100]");
port_range_hints[PSEUDOQUADRO_CENTREGAIN].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE | LADSPA_HINT_DEFAULT_0;
port_range_hints[PSEUDOQUADRO_CENTREGAIN].LowerBound = 0;
port_range_hints[PSEUDOQUADRO_CENTREGAIN].UpperBound = 100;
pseudoquadroDescriptor->activate = NULL;
pseudoquadroDescriptor->cleanup = cleanupPseudoquadro;
pseudoquadroDescriptor->connect_port = connectPortPseudoquadro;
pseudoquadroDescriptor->deactivate = NULL;
pseudoquadroDescriptor->instantiate = instantiatePseudoquadro;
pseudoquadroDescriptor->run = runPseudoquadro;
pseudoquadroDescriptor->run_adding = runaddingPseudoquadro;
pseudoquadroDescriptor->set_run_adding_gain = NULL;
}
}
void _fini() {
if (pseudoquadroDescriptor) {
free((LADSPA_PortDescriptor *)pseudoquadroDescriptor->PortDescriptors);
free((char **)pseudoquadroDescriptor->PortNames);
free((LADSPA_PortRangeHint *)pseudoquadroDescriptor->PortRangeHints);
free(pseudoquadroDescriptor);
}
}