48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/*
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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 LTEFFT_
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#define LTEFFT_
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#include <strings.h>
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#include <stdlib.h>
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#include "lte/base.h"
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#include "utils/dft.h"
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typedef _Complex float cf_t; /* this is only a shortcut */
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/* This is common for both directions */
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typedef struct {
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dft_plan_t fft_plan;
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int nof_symbols;
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int symbol_sz;
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lte_cp_t cp_type;
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}lte_fft_t;
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int lte_fft_init(lte_fft_t *q, lte_cp_t cp_type, int symbol_sz);
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void lte_fft_free(lte_fft_t *q);
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void lte_fft_run(lte_fft_t *q, cf_t *input, cf_t *output);
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int lte_ifft_init(lte_fft_t *q, lte_cp_t cp_type, int symbol_sz);
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void lte_ifft_free(lte_fft_t *q);
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void lte_ifft_run(lte_fft_t *q, cf_t *input, cf_t *output);
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#endif
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