diff options
| author | drowe67 <[email protected]> | 2024-05-03 05:23:55 +0930 |
|---|---|---|
| committer | David Rowe <[email protected]> | 2024-05-03 05:23:55 +0930 |
| commit | d026cfede7053c7f38bfed6f5089b403e961a45a (patch) | |
| tree | 982f3a6fecb742c8d24494b3ceff1d4ce503c44b | |
| parent | d321ccf46fa12b62a6a229749f2deb9701b8a805 (diff) | |
automatically compute the number of used data bits in a codeword from other waveform parameters
| -rw-r--r-- | src/interldpc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/interldpc.c b/src/interldpc.c index 8cec647..b94f711 100644 --- a/src/interldpc.c +++ b/src/interldpc.c @@ -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 |