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Fix Security+ 2.0 decoder for new gap_limit rows ()

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Clayton Smith 2020-09-20 14:55:55 -04:00 • committed by GitHub
parent 38e388c766
commit 50b613dc6a
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 11 deletions

18
src/devices/secplus_v2.c
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@ -268,23 +268,19 @@ static int secplus_v2_callback(r_device *decoder, bitbuffer_t *bitbuffer)
bitbuffer_t fixed_2 = {0};
uint8_t rolling_2[16] = {0};
for (uint16_t row = 0; row < bitbuffer->num_rows; ++row) {
if (bitbuffer->bits_per_row[row] < 110) {
continue;
}
// 280 is a conservative guess
if (bitbuffer->bits_per_row[0] <= 280) {
return DECODE_ABORT_LENGTH;
}
search_index = bitbuffer_search(bitbuffer, row, 0, _preamble, _preamble_len);
// loop though segments until we collect both parts, or run out of data
while (search_index < bitbuffer->bits_per_row[0]) {
search_index = bitbuffer_search(bitbuffer, 0, search_index, _preamble, _preamble_len);
if (search_index >= bitbuffer->bits_per_row[0]) {
if (search_index >= bitbuffer->bits_per_row[row]) {
break;
}
bitbuffer_clear(&bits);
next_pos = bitbuffer_manchester_decode(bitbuffer, 0, search_index + 26, &bits, 80);
next_pos = bitbuffer_manchester_decode(bitbuffer, row, search_index + 26, &bits, 80);
search_index += 20;
if (bits.bits_per_row[0] < 42) {
continue; // DECODE_ABORT_LENGTH;