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M17 - Include libM17 Viterbi Decoder and Misc Math;

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lwvmobile
2024-03-07 22:22:19 -05:00
parent a30512f4e4
commit 677b064e97
3 changed files with 362 additions and 3 deletions
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8
include/dsd.h
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@@ -1062,6 +1062,14 @@ void CNXDNConvolution_chainback(unsigned char* out, unsigned int nBits);
void CNXDNConvolution_encode(const unsigned char* in, unsigned char* out, unsigned int nBits);
void CNXDNConvolution_init();
//libM17 viterbi decoder
uint32_t viterbi_decode(uint8_t* out, const uint16_t* in, const uint16_t len);
uint32_t viterbi_decode_punctured(uint8_t* out, const uint16_t* in, const uint8_t* punct, const uint16_t in_len, const uint16_t p_len);
void viterbi_decode_bit(uint16_t s0, uint16_t s1, const size_t pos);
uint32_t viterbi_chainback(uint8_t* out, size_t pos, uint16_t len);
void viterbi_reset(void);
uint16_t q_abs_diff(const uint16_t v1, const uint16_t v2);
//keeping these
void NXDN_SACCH_Full_decode(dsd_opts * opts, dsd_state * state);
void NXDN_Elements_Content_decode(dsd_opts * opts, dsd_state * state,