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iceman1001 2023-07-12 14:00:19 +02:00
commit 403385c56c
1 changed files with 13 additions and 2 deletions
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15
common/lfdemod.c
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@ -268,12 +268,20 @@ static size_t removeEm410xParity(uint8_t *bits, size_t startIdx, bool isLong, bo
*validLong = false; *validLong = false;
uint8_t bLen = isLong ? 110 : 55; uint8_t bLen = isLong ? 110 : 55;
uint16_t parityCol[4] = { 0, 0, 0, 0 }; uint16_t parityCol[4] = { 0, 0, 0, 0 };
for (int word = 0; word < bLen; word += 5) { for (int word = 0; word < bLen; word += 5) {
for (int bit = 0; bit < 5; bit++) { for (int bit = 0; bit < 5; bit++) {
if (word + bit >= bLen) break;
if (word + bit >= bLen) {
break;
}
parityWd = (parityWd << 1) | bits[startIdx + word + bit]; parityWd = (parityWd << 1) | bits[startIdx + word + bit];
if ((word <= 50) && (bit < 4))
if ((word <= 50) && (bit < 4)) {
parityCol[bit] = (parityCol[bit] << 1) | bits[startIdx + word + bit]; parityCol[bit] = (parityCol[bit] << 1) | bits[startIdx + word + bit];
}
bits[bitCnt++] = (bits[startIdx + word + bit]); bits[bitCnt++] = (bits[startIdx + word + bit]);
} }
if (word + 5 > bLen) break; if (word + 5 > bLen) break;
@ -293,12 +301,15 @@ static size_t removeEm410xParity(uint8_t *bits, size_t startIdx, bool isLong, bo
if (!isLong && validRowParitySkipColP && validColParity) { if (!isLong && validRowParitySkipColP && validColParity) {
*validShort = true; *validShort = true;
} }
if (isLong && validRowParity) { if (isLong && validRowParity) {
*validLong = true; *validLong = true;
} }
if (isLong && validRowParitySkipColP && validColParity) { if (isLong && validRowParitySkipColP && validColParity) {
*validShortExtended = true; *validShortExtended = true;
} }
if (*validShort || *validShortExtended || *validLong) { if (*validShort || *validShortExtended || *validLong) {
return bitCnt; return bitCnt;
} else { } else {