59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
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/*
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This software is part of pffft/pfdsp, a set of simple DSP routines.
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Copyright (c) 2014, Andras Retzler <randras@sdr.hu>
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Copyright (c) 2020 Hayati Ayguen <h_ayguen@web.de>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL ANDRAS RETZLER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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____ ___ ____ ____ ____ ____
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/ ___|_ _/ ___| | _ \| _ \ / ___|
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| | | | | | | | | | | | |
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| |___ | | |___ | |_| | |_| | |___
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\____|___\____| |____/|____/ \____|
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*/
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typedef struct complexf_s { float i; float q; } complexf;
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void *cicddc_init(int factor);
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void cicddc_free(void *state);
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void cicddc_s16_c(void *state, int16_t *input, complexf *output, int outsize, float rate);
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void cicddc_cs16_c(void *state, int16_t *input, complexf *output, int outsize, float rate);
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void cicddc_cu8_c(void *state, uint8_t *input, complexf *output, int outsize, float rate);
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#ifdef __cplusplus
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}
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#endif
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