kopia lustrzana https://github.com/Guenael/rtlsdr-wsprd
94 wiersze
3.0 KiB
C
94 wiersze
3.0 KiB
C
/*
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* FreeBSD License
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* Copyright (c) 2016, Guenael
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* All rights reserved.
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*
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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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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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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 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY 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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*/
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#pragma once
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#include <unistd.h>
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#ifndef bool
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typedef uint32_t bool;
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#define true 1
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#define false 0
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#endif
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struct receiver_state {
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/* Variables used for stop conditions */
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bool exit_flag;
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bool decode_flag;
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/* Buffer used for sampling */
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float *iSamples;
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float *qSamples;
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/* Simple index */
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uint32_t iqIndex;
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};
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/* Option & config of the receiver */
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struct receiver_options {
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uint32_t dialfreq;
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uint32_t realfreq;
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int32_t gain;
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int32_t autogain;
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int32_t ppm;
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int32_t shift;
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int32_t upconverter;
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int32_t directsampling;
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int32_t maxloop;
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int32_t device;
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bool selftest;
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bool writefile;
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bool readfile;
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char filename[33];
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char date[7];
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char uttime[5];
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};
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static void rtlsdr_callback(unsigned char *samples, uint32_t samples_count, void *ctx);
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static void *rtlsdr_rx(void *arg);
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void postSpots(uint32_t n_results);
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void printSpots(uint32_t n_results);
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void saveSample(float *iSamples, float *qSamples);
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static void *wsprDecoder(void *arg);
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double atofs(char *s);
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int32_t parse_u64(char *s, uint64_t *const value);
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void initSampleStorage();
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void initDecoder_options();
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void initrx_options();
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void sigint_callback_handler(int signum);
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int32_t readRawIQfile(float *iSamples, float *qSamples, char *filename);
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int32_t writeRawIQfile(float *iSamples, float *qSamples, char *filename);
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void decodeRecordedFile(char *filename);
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float whiteGaussianNoise(float factor);
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int32_t decoderSelfTest();
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void usage(void);
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int32_t readRawIQfile(float *iSamples, float *qSamples, char *filename);
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int32_t writeRawIQfile(float *iSamples, float *qSamples, char *filename);
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