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66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/*
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* Copyright 2013-2019 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE 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 Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSLTE_DELAY_H
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#define SRSLTE_DELAY_H
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#include <srslte/config.h>
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#include <srslte/phy/common/timestamp.h>
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#include <srslte/phy/utils/ringbuffer.h>
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typedef struct {
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float delay_min_us;
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float delay_max_us;
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float period_s;
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float init_time_s;
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uint32_t srate_max_hz;
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uint32_t srate_hz;
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float delay_us;
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float delay_nsamples;
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srslte_ringbuffer_t rb;
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cf_t* zero_buffer;
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} srslte_channel_delay_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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SRSLTE_API int srslte_channel_delay_init(srslte_channel_delay_t* q,
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float delay_min_us,
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float delay_max_us,
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float period_s,
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float init_time_s,
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uint32_t srate_max_hz);
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SRSLTE_API void srslte_channel_delay_update_srate(srslte_channel_delay_t* q, uint32_t srate_hz);
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SRSLTE_API void srslte_channel_delay_free(srslte_channel_delay_t* q);
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SRSLTE_API void srslte_channel_delay_execute(
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srslte_channel_delay_t* q, const cf_t* in, cf_t* out, uint32_t len, const srslte_timestamp_t* ts);
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#ifdef __cplusplus
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}
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#endif
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#endif // SRSLTE_DELAY_H
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