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automatically compute the number of used data bits in a codeword from other waveform parameters

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drowe67 2024-05-03 05:23:55 +09:30 • committed by David Rowe
parent d321ccf46f
commit d026cfede7
1 changed files with 5 additions and 3 deletions
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8
src/interldpc.c
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@ -76,9 +76,11 @@ void ldpc_mode_specific_setup(struct OFDM *ofdm, struct LDPC *ldpc) {
set_data_bits_per_frame(ldpc, 156);
ldpc->protection_mode = LDPC_PROT_2020B;
}
if (!strcmp(ofdm->mode, "datac4")) set_data_bits_per_frame(ldpc, 448);
if (!strcmp(ofdm->mode, "datac13")) set_data_bits_per_frame(ldpc, 128);
if (!strcmp(ofdm->mode, "datac14")) set_data_bits_per_frame(ldpc, 40);
/* compute the number of data bits used in the codeword */
int data_bits_per_frame = ofdm->bitsperpacket - ofdm->nuwbits -
ofdm->ntxtbits - ldpc->NumberParityBits;
set_data_bits_per_frame(ldpc, data_bits_per_frame);
}
/* LDPC encode frame - generate parity bits and a codeword, applying the