mirror of https://github.com/PentHertz/srsLTE.git
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
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/*
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* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
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* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
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*
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* OSLD-lib is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* OSLD-lib 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CONVOLUTION_H_
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#define CONVOLUTION_H_
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#include "utils/dft.h"
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typedef struct {
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_Complex float *input_fft;
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_Complex float *filter_fft;
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_Complex float *output_fft;
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_Complex float *output_fft2;
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int input_len;
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int filter_len;
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int output_len;
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dft_plan_t input_plan;
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dft_plan_t filter_plan;
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dft_plan_t output_plan;
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}conv_fft_cc_t;
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int conv_fft_cc_init(conv_fft_cc_t *state, int input_len, int filter_len);
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void conv_fft_cc_free(conv_fft_cc_t *state);
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int conv_fft_cc_run(conv_fft_cc_t *state, _Complex float *input, _Complex float *filter, _Complex float *output);
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int conv_cc(_Complex float *input, _Complex float *filter, _Complex float *output, int input_len, int filter_len);
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#endif
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