static void runAddingNotch_iir(LADSPA_Handle instance, unsigned long sample_count) {
Notch_iir *plugin_data = (Notch_iir *)instance;
/* Center Frequency (Hz) (float value) */
const LADSPA_Data center = *(plugin_data->center);
/* Bandwidth (Hz) (float value) */
const LADSPA_Data width = *(plugin_data->width);
/* Stages(2 poles per stage) (float value) */
const LADSPA_Data stages = *(plugin_data->stages);
/* Input (array of floats of length sample_count) */
const LADSPA_Data * const input = plugin_data->input;
/* Output (array of floats of length sample_count) */
LADSPA_Data * const output = plugin_data->output;
iir_stage_t* first = plugin_data->first;
iirf_t* iirf1 = plugin_data->iirf1;
iirf_t* iirf2 = plugin_data->iirf2;
float lfc = plugin_data->lfc;
long sample_rate = plugin_data->sample_rate;
iir_stage_t* second = plugin_data->second;
float ufc = plugin_data->ufc;
ufc = (center - width*0.5f)/(float)sample_rate;
lfc = (center + width*0.5f)/(float)sample_rate;
chebyshev(iirf1, first, 2*CLAMP((int)stages,1,10), IIR_STAGE_LOWPASS, ufc, 0.5f);
chebyshev(iirf2, second, 2*CLAMP((int)stages,1,10), IIR_STAGE_HIGHPASS, lfc, 0.5f);
iir_process_buffer_ns_5(iirf1, first, input, output, sample_count, RUN_ADDING);
iir_process_buffer_ns_5(iirf2, second, input, output, sample_count, 1); /* add to first buffer */
}
static void runBandpass_iir(LV2_Handle instance, uint32_t sample_count)
{
Bandpass_iir *plugin_data = (Bandpass_iir *)instance;
const float center = *(plugin_data->center);
const float width = *(plugin_data->width);
const float stages = *(plugin_data->stages);
const float * const input = plugin_data->input;
float * const output = plugin_data->output;
iirf_t* iirf = plugin_data->iirf;
iir_stage_t* gt = plugin_data->gt;
iir_stage_t* first = plugin_data->first;
iir_stage_t* second = plugin_data->second;
long sample_rate = plugin_data->sample_rate;
float ufc = plugin_data->ufc;
float lfc = plugin_data->lfc;
ufc = (center + width*0.5f)/(float)sample_rate;
lfc = (center - width*0.5f)/(float)sample_rate;
combine_iir_stages(IIR_STAGE_BANDPASS, gt, first, second,
chebyshev(iirf, first, 2*CLAMP((int)stages,1,10), IIR_STAGE_LOWPASS, ufc, 0.5f),
chebyshev(iirf, second, 2*CLAMP((int)stages,1,10), IIR_STAGE_HIGHPASS, lfc, 0.5f));
iir_process_buffer_ns_5(iirf, gt, input, output, sample_count);
}
static void runAddingHighpass_iir(LADSPA_Handle instance, unsigned long sample_count) {
Highpass_iir *plugin_data = (Highpass_iir *)instance;
/* Cutoff Frequency (float value) */
const LADSPA_Data cutoff = *(plugin_data->cutoff);
/* Stages(2 poles per stage) (float value) */
const LADSPA_Data stages = *(plugin_data->stages);
/* Input (array of floats of length sample_count) */
const LADSPA_Data * const input = plugin_data->input;
/* Output (array of floats of length sample_count) */
LADSPA_Data * const output = plugin_data->output;
iir_stage_t* gt = plugin_data->gt;
iirf_t* iirf = plugin_data->iirf;
long sample_rate = plugin_data->sample_rate;
chebyshev(iirf, gt, 2*CLAMP((int)stages,1,10), IIR_STAGE_HIGHPASS, cutoff/(float)sample_rate, 0.5f);
iir_process_buffer_ns_5(iirf, gt, input, output, sample_count,RUN_ADDING);
}
