kopia lustrzana https://github.com/Dsplib/libdspl-2.0
86 wiersze
2.4 KiB
C
86 wiersze
2.4 KiB
C
/*
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* Copyright (c) 2015-2019 Sergey Bakhurin
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* Digital Signal Processing Library [http://dsplib.org]
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*
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* This file is part of libdspl-2.0.
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*
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* 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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* DSPL 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 Lesser General Public License
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* along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <float.h>
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#include "dspl.h"
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#include "dspl_internal.h"
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#ifdef DOXYGEN_ENGLISH
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/*! ****************************************************************************
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\ingroup DFT_GROUP
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\fn void fft_free(fft_t *pfft)
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\brief Free `fft_t` structure.
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The function clears the intermediate data memory
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and vectors of FFT twiddle factors of the structure `fft_t`.
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\param[in] pfft
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Pointer to the `fft_t` object. \n
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\author Sergey Bakhurin www.dsplib.org
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***************************************************************************** */
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#endif
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#ifdef DOXYGEN_RUSSIAN
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/*! ****************************************************************************
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\ingroup DFT_GROUP
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\fn void fft_free(fft_t *pfft)
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\brief Очистить структуру `fft_t` алгоритма БПФ
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Функция производит очищение памяти промежуточных данных
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и векторов поворотных коэффициентов структуры `fft_t`.
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\param[in] pfft
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Указатель на структуру `fft_t`. \n
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\author Бахурин Сергей www.dsplib.org
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***************************************************************************** */
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#endif
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void DSPL_API fft_free(fft_t *pfft)
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{
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if(!pfft)
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return;
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if(pfft->w)
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free(pfft->w);
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if(pfft->t0)
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free(pfft->t0);
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if(pfft->t1)
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free(pfft->t1);
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if(pfft->w1024)
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free(pfft->w1024);
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if(pfft->w2048)
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free(pfft->w2048);
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if(pfft->w4096)
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free(pfft->w4096);
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memset(pfft, 0, sizeof(fft_t));
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}
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