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use the DVB recommended T=10 BCH code

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This commit is contained in:
Ahmet Inan 2021-07-21 17:15:47 +02:00
commit 8d5d7fc0c2
3 changed files with 12 additions and 12 deletions
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8
encode.cc
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@ -30,7 +30,7 @@ struct Encoder
static const int guard_len = symbol_len / 8;
static const int ldpc_bits = 64800;
static const int bch_bits = ldpc_bits - 21600;
static const int data_bits = bch_bits - 12 * 16;
static const int data_bits = bch_bits - 10 * 16;
static const int mls0_len = 127;
static const int mls0_poly = 0b10001001;
static const int mls1_len = 255;
@ -42,7 +42,7 @@ struct Encoder
DSP::FastFourierTransform<4*symbol_len, cmplx, 1> bwd4;
CODE::CRC<uint16_t> crc0;
CODE::BoseChaudhuriHocquenghemEncoder<255, 71> bchenc0;
CODE::BoseChaudhuriHocquenghemEncoder<65535, 65343> bchenc1;
CODE::BoseChaudhuriHocquenghemEncoder<65535, 65375> bchenc1;
CODE::LDPCEncoder<DVB_T2_TABLE_A3> ldpcenc;
int8_t code[ldpc_bits], bint[ldpc_bits];
cmplx fdom[symbol_len], fdom4[4*symbol_len];
@ -199,7 +199,7 @@ struct Encoder
0b10000000000101101, 0b10000000101110011, 0b10000111110111101,
0b10101101001010101, 0b10001111100101111, 0b11111011110110101,
0b11010111101100101, 0b10111001101100111, 0b10000111010100001,
0b10111010110100111, 0b10011101000101101, 0b10001101011100011}),
0b10111010110100111}),
oper_mode(oper_mode)
{
switch (oper_mode) {
@ -337,7 +337,7 @@ int main(int argc, char **argv)
return 1;
}
const int code_len = 64800 / 8;
const int data_len = code_len - (12 * 16 + 21600) / 8;
const int data_len = code_len - (10 * 16 + 21600) / 8;
uint8_t *input_data = new uint8_t[code_len];
for (int i = 0; i < data_len; ++i)
input_data[i] = input_file.get();