1 files changed, 61 insertions, 0 deletions
diff --git a/src/mpdecode_core.h b/src/mpdecode_core.h
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+++ b/src/mpdecode_core.h
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+/*
+  FILE...: mpdecode_core.h
+  AUTHOR.: David Rowe
+  CREATED: Sep 2016
+
+  C-callable core functions for MpDecode, so they can be used for
+  Octave and C programs.  Also some convenience functions to help use
+  the C-callable LDPC decoder in C programs.
+*/
+
+#ifndef __MPDECODE_CORE__
+#define __MPDECODE_CORE__
+
+#include <stdint.h>
+
+#include "comp.h"
+
+struct LDPC {
+  char name[32];
+  int max_iter;
+  int dec_type;
+  int q_scale_factor;
+  int r_scale_factor;
+  int CodeLength;
+  int NumberParityBits;
+  int NumberRowsHcols;
+  int max_row_weight;
+  int max_col_weight;
+
+  uint16_t *H_rows;
+  uint16_t *H_cols;
+
+  /* these two are fixed to code params */
+  int ldpc_data_bits_per_frame;
+  int ldpc_coded_bits_per_frame;
+
+  /* support for partial use of data bits in codeword and unequal protection
+   * schemes */
+  int protection_mode;
+  int data_bits_per_frame;
+  int coded_bits_per_frame;
+};
+
+void encode(struct LDPC *ldpc, unsigned char ibits[], unsigned char pbits[]);
+
+int run_ldpc_decoder(struct LDPC *ldpc, uint8_t out_char[], float input[],
+                     int *parityCheckCount);
+
+void sd_to_llr(float llr[], float sd[], int n);
+void Demod2D(float symbol_likelihood[], COMP r[], COMP S_matrix[], float EsNo,
+             float fading[], float mean_amp, int number_symbols);
+void Somap(float bit_likelihood[], float symbol_likelihood[], int M, int bps,
+           int number_symbols);
+void symbols_to_llrs(float llr[], COMP rx_qpsk_symbols[], float rx_amps[],
+                     float EsNo, float mean_amp, int nsyms);
+void fsk_rx_filt_to_llrs(float llr[], float rx_filt[], float v_est,
+                         float SNRest, int M, int nsyms);
+
+void ldpc_print_info(struct LDPC *ldpc);
+
+#endif