89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
/*
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* Brickworks
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*
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* Copyright (C) 2023 Orastron Srl unipersonale
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*
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* Brickworks is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* Brickworks is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Brickworks. If not, see <http://www.gnu.org/licenses/>.
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*
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* File author: Stefano D'Angelo
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*/
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#ifndef BWPP_PPM_H
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#define BWPP_PPM_H
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#include <bw_ppm.h>
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#include <array>
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namespace Brickworks {
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template<BW_SIZE_T N_CHANNELS>
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class PPM {
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public:
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PPM();
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void setSampleRate(float sampleRate);
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void reset();
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void process(
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std::array<const float *, N_CHANNELS> x,
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std::array<float *, N_CHANNELS> y,
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int nSamples);
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void setIntegrationTau(float value);
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float getYZ1(BW_SIZE_T channel);
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private:
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bw_ppm_coeffs coeffs;
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bw_ppm_state states[N_CHANNELS];
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bw_ppm_state *statesP[N_CHANNELS];
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};
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template<BW_SIZE_T N_CHANNELS>
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PPM<N_CHANNELS>::PPM() {
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bw_ppm_init(&coeffs);
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for (BW_SIZE_T i = 0; i < N_CHANNELS; i++)
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statesP[i] = states + i;
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}
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template<BW_SIZE_T N_CHANNELS>
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void PPM<N_CHANNELS>::setSampleRate(float sampleRate) {
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bw_ppm_set_sample_rate(&coeffs, sampleRate);
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}
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template<BW_SIZE_T N_CHANNELS>
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void PPM<N_CHANNELS>::reset() {
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bw_ppm_reset_coeffs(&coeffs);
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for (BW_SIZE_T i = 0; i < N_CHANNELS; i++)
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bw_ppm_reset_state(&coeffs, states + i);
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}
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template<BW_SIZE_T N_CHANNELS>
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void PPM<N_CHANNELS>::process(
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std::array<const float *, N_CHANNELS> x,
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std::array<float *, N_CHANNELS> y,
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int nSamples) {
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bw_ppm_process_multi(&coeffs, statesP, x.data(), y.data(), N_CHANNELS, nSamples);
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}
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template<BW_SIZE_T N_CHANNELS>
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void PPM<N_CHANNELS>::setIntegrationTau(float value) {
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bw_ppm_set_integration_tau(&coeffs, value);
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}
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template<BW_SIZE_T N_CHANNELS>
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float PPM<N_CHANNELS>::getYZ1(BW_SIZE_T channel) {
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return bw_ppm_get_y_z1(states + channel);
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}
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}
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#endif
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