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Fixing occasional MMDVMHost crash when receiving P25 RF data with high BER (RS decoder fix)

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This commit is contained in:
Andy CA6JAU 2017-03-20 21:38:52 -03:00
parent 5ca81f288b
commit 738cc467ee
2 changed files with 4 additions and 3 deletions
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5
RS241213.cpp
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@ -241,7 +241,7 @@ bool CRS241213::decode(unsigned char* data)
if (q == 0) { //it is a root if (q == 0) { //it is a root
//store root (index-form) and error location number //store root (index-form) and error location number
root[count] = i; root[count] = i;
locn[count] = i - 1; locn[count] = i - 40;
//if wehave max possible roots, abort search to save time //if wehave max possible roots, abort search to save time
count = count + 1; count = count + 1;
@ -317,7 +317,8 @@ bool CRS241213::decode(unsigned char* data)
// apply error to data // apply error to data
if (num1 != 0) { if (num1 != 0) {
HB[locn[j]] = HB[locn[j]] ^ (rsGFexp[(rsGFlog[num1] + rsGFlog[num2] + 63 - rsGFlog[den]) % 63]); if(locn[j] < 24)
HB[locn[j]] = HB[locn[j]] ^ (rsGFexp[(rsGFlog[num1] + rsGFlog[num2] + 63 - rsGFlog[den]) % 63]);
} }
} }

2
RS241213.h
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@ -17,7 +17,7 @@
*/ */
#if !defined(RS241213_H) #if !defined(RS241213_H)
#define RS241213 #define RS241213_H
class CRS241213 class CRS241213
{ {