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Diffstat (limited to 'pf_cic.h')
| -rw-r--r-- | pf_cic.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/pf_cic.h b/pf_cic.h new file mode 100644 index 0000000..681ee4f --- /dev/null +++ b/pf_cic.h @@ -0,0 +1,58 @@ +/* +This software is part of pffft/pfdsp, a set of simple DSP routines. + +Copyright (c) 2014, Andras Retzler <randras@sdr.hu> +Copyright (c) 2020 Hayati Ayguen <h_ayguen@web.de> +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL ANDRAS RETZLER BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* + ____ ___ ____ ____ ____ ____ + / ___|_ _/ ___| | _ \| _ \ / ___| + | | | | | | | | | | | | | + | |___ | | |___ | |_| | |_| | |___ + \____|___\____| |____/|____/ \____| +*/ + +typedef struct complexf_s { float i; float q; } complexf; + +void *cicddc_init(int factor); +void cicddc_free(void *state); +void cicddc_s16_c(void *state, int16_t *input, complexf *output, int outsize, float rate); +void cicddc_cs16_c(void *state, int16_t *input, complexf *output, int outsize, float rate); +void cicddc_cu8_c(void *state, uint8_t *input, complexf *output, int outsize, float rate); + +#ifdef __cplusplus +} +#endif + |