| 46 | } |
| 47 | |
| 48 | bool FluxPattern::matches(const unsigned* end, FluxMatch& match) const |
| 49 | { |
| 50 | const double clockDecodeThreshold = |
| 51 | globalConfig()->decoder().bit_error_threshold(); |
| 52 | const unsigned* start = end - _intervals.size(); |
| 53 | unsigned candidatelength = std::accumulate(start, end - _lowzero, 0); |
| 54 | if (!candidatelength) |
| 55 | return false; |
| 56 | match.clock = (double)candidatelength / (double)_length; |
| 57 | |
| 58 | unsigned exactIntervals = _intervals.size() - _lowzero; |
| 59 | for (unsigned i = 0; i < exactIntervals; i++) |
| 60 | { |
| 61 | double ii = match.clock * (double)_intervals[i]; |
| 62 | double ci = (double)start[i]; |
| 63 | double error = fabs((ii - ci) / match.clock); |
| 64 | if (error > clockDecodeThreshold) |
| 65 | return false; |
| 66 | } |
| 67 | |
| 68 | if (_lowzero) |
| 69 | { |
| 70 | double ii = match.clock * (double)_intervals[exactIntervals]; |
| 71 | double ci = (double)start[exactIntervals]; |
| 72 | double error = (ii - ci) / match.clock; |
| 73 | if (error > clockDecodeThreshold) |
| 74 | return false; |
| 75 | } |
| 76 | |
| 77 | match.matcher = this; |
| 78 | match.intervals = _intervals.size(); |
| 79 | match.zeroes = _highzeroes; |
| 80 | return true; |
| 81 | } |
| 82 | |
| 83 | FluxMatchers::FluxMatchers( |
| 84 | const std::initializer_list<const FluxMatcher*> matchers): |