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reserve seed value of zero

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This commit is contained in:
Ahmet Inan 2025-07-13 08:57:33 +02:00
commit 8067d65477
2 changed files with 4 additions and 0 deletions
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2
decode.cc
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@ -325,6 +325,8 @@ struct Decoder : Common
comb = combination(); comb = combination();
int poly_index = comb & 15; int poly_index = comb & 15;
int seed_value = comb >> 4; int seed_value = comb >> 4;
if (seed_value == 0)
std::cerr << "reserved seed value detected" << std::endl;
CODE::MLS seq(slm_poly[poly_index], seed_value); CODE::MLS seq(slm_poly[poly_index], seed_value);
for (int i = 0; i < tone_count; ++i) for (int i = 0; i < tone_count; ++i)
if (i % block_length != meta_off && i % block_length != seed_off) if (i % block_length != meta_off && i % block_length != seed_off)

2
encode.cc
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@ -93,6 +93,8 @@ struct Encoder : public Common
hadamard_encoder(seed, seed_data); hadamard_encoder(seed, seed_data);
int poly_index = comb & 15; int poly_index = comb & 15;
int seed_value = comb >> 4; int seed_value = comb >> 4;
if (seed_value == 0)
continue;
CODE::MLS seq(slm_poly[poly_index], seed_value); CODE::MLS seq(slm_poly[poly_index], seed_value);
for (int i = 0, m = 0, s = 0; i < tone_count; ++i) for (int i = 0, m = 0, s = 0; i < tone_count; ++i)
if (i % block_length == meta_off) if (i % block_length == meta_off)