[feat](trx-rs): add ft8 decoder

Co-authored-by: Codex <codex@openai.com> Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
2026-02-09 21:19:56 +01:00
parent 7bd1a70607
commit 1199ab85e9
206 changed files with 9613 additions and 5 deletions
@@ -0,0 +1,41 @@
+#ifndef _INCLUDE_ENCODE_H_
+#define _INCLUDE_ENCODE_H_
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+// typedef struct
+// {
+//     uint8_t tones[FT8_NN];
+//     // for waveform readout:
+//     int n_spsym;       // Number of waveform samples per symbol
+//     float *pulse;      // [3 * n_spsym]
+//     int idx_symbol;    // Index of the current symbol
+//     float f0;          // Base frequency, Hertz
+//     float signal_rate; // Waveform sample rate, Hertz
+// } encoder_t;
+
+// void encoder_init(float signal_rate, float *pulse_buffer);
+// void encoder_set_f0(float f0);
+// void encoder_process(const message_t *message); // in: message
+// void encoder_generate(float *block);            // out: block of waveforms
+
+/// Generate FT8 tone sequence from payload data
+/// @param[in] payload - 10 byte array consisting of 77 bit payload
+/// @param[out] tones  - array of FT8_NN (79) bytes to store the generated tones (encoded as 0..7)
+void ft8_encode(const uint8_t* payload, uint8_t* tones);
+
+/// Generate FT4 tone sequence from payload data
+/// @param[in] payload - 10 byte array consisting of 77 bit payload
+/// @param[out] tones  - array of FT4_NN (105) bytes to store the generated tones (encoded as 0..3)
+void ft4_encode(const uint8_t* payload, uint8_t* tones);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _INCLUDE_ENCODE_H_