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gr-m17
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Jean-Michel Friedt 2024-06-07 15:46:18 +02:00
parent 55d9b18aa5
commit 7f73fd459a
2 changed files with 12 additions and 3 deletions
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4
lib/m17_coder_impl.cc
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@ -197,12 +197,14 @@ void m17_coder_impl::set_type(short type)
//increment the Frame Number
_fn = (_fn + 1) % 0x8000;
//increment the LICH counter
lich_cnt = (lich_cnt + 1) % 6;
}
else //LSF
{
_got_lsf=1;
// printf("got_lsf=1\n");
//send out the preamble and LSF
send_preamble(frame_buff_tmp, &frame_buff_count_tmp, 0); //0 - LSF preamble, as opposed to 1 - BERT preamble

11
lib/m17_decoder_impl.cc
View File

@ -171,7 +171,10 @@ namespace gr {
}
//decode
uint32_t e=viterbi_decode_punctured(frame_data, enc_data, puncture_pattern_2, 272, 12);
#ifdef SHOW_VITERBI_ERRS
uint32_t e=
#endif
viterbi_decode_punctured(frame_data, enc_data, puncture_pattern_2, 272, 12);
uint16_t fn = (frame_data[1] << 8) | frame_data[2];
@ -274,7 +277,11 @@ namespace gr {
printf("LSF\n");
}
//decode
uint32_t e=viterbi_decode_punctured(lsf, d_soft_bit, puncture_pattern_1, 2*SYM_PER_PLD, 61);
#ifdef SHOW_VITERBI_ERRS
uint32_t e=
#endif
viterbi_decode_punctured(lsf, d_soft_bit, puncture_pattern_1, 2*SYM_PER_PLD, 61);
//shift the buffer 1 position left - get rid of the encoded flushing bits
for(uint8_t i=0; i<30; i++)