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If there is no single best-scoring comm-b format, mark the message as ambiguous.

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This mostly affects TRACK_TURN messages on my test set. before:

 127603 ACAS_RA
  19173 EMPTY_RESPONSE
 210286 HEADING_SPEED
 223068 DATALINK_CAPS
 243445 TRACK_TURN
 271644 VERTICAL_INTENT
  62905 UNKNOWN
   7090 GICB_CAPS
  76091 AIRCRAFT_IDENT

  15973 "suspicious"

after:

  10667 AMBIGUOUS
 127603 ACAS_RA
  19173 EMPTY_RESPONSE
 210286 HEADING_SPEED
 223068 DATALINK_CAPS
 232824 TRACK_TURN
 271598 VERTICAL_INTENT
  62905 UNKNOWN
   7090 GICB_CAPS
  76091 AIRCRAFT_IDENT

   2258 "suspicious"
This commit is contained in:
Oliver Jowett 2019-05-02 17:44:37 +08:00
parent 0306c7edfd
commit b8fb5e5fe5
1 changed files with 10 additions and 2 deletions
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12
comm_b.c
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@ -57,18 +57,26 @@ void decodeCommB(struct modesMessage *mm)
// This is a bit hairy as we don't know what the requested register was
int bestScore = 0;
CommBDecoderFn bestDecoder = NULL;
int ambiguous = 0;
for (unsigned i = 0; i < (sizeof(comm_b_decoders) / sizeof(comm_b_decoders[0])); ++i) {
int score = comm_b_decoders[i](mm, false);
if (score > bestScore) {
bestScore = score;
bestDecoder = comm_b_decoders[i];
ambiguous = 0;
} else if (score == bestScore) {
ambiguous = 1;
}
}
if (bestDecoder) {
// decode it
bestDecoder(mm, true);
if (ambiguous) {
mm->commb_format = COMMB_AMBIGUOUS;
} else {
// decode it
bestDecoder(mm, true);
}
}
}