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Get the convolution BER directly from the decoder.

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This commit is contained in:
Jonathan Naylor
2021-06-27 17:29:55 +01:00
parent 50337639b2
commit 8547a210bd
8 changed files with 50 additions and 20 deletions
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19
M17Convolution.cpp
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@@ -118,7 +118,7 @@ void CM17Convolution::encodeData(const unsigned char* in, unsigned char* out) co
}
}
void CM17Convolution::decodeLinkSetup(const unsigned char* in, unsigned char* out)
unsigned int CM17Convolution::decodeLinkSetup(const unsigned char* in, unsigned char* out)
{
assert(in != NULL);
assert(out != NULL);
@@ -150,10 +150,10 @@ void CM17Convolution::decodeLinkSetup(const unsigned char* in, unsigned char* ou
decode(s0, s1);
}
chainback(out, 240U);
return chainback(out, 240U);
}
void CM17Convolution::decodeData(const unsigned char* in, unsigned char* out)
unsigned int CM17Convolution::decodeData(const unsigned char* in, unsigned char* out)
{
assert(in != NULL);
assert(out != NULL);
@@ -185,7 +185,7 @@ void CM17Convolution::decodeData(const unsigned char* in, unsigned char* out)
decode(s0, s1);
}
chainback(out, 160U);
return chainback(out, 160U);
}
void CM17Convolution::start()
@@ -229,7 +229,7 @@ void CM17Convolution::decode(uint8_t s0, uint8_t s1)
m_newMetrics = tmp;
}
void CM17Convolution::chainback(unsigned char* out, unsigned int nBits)
unsigned int CM17Convolution::chainback(unsigned char* out, unsigned int nBits)
{
assert(out != NULL);
@@ -244,6 +244,15 @@ void CM17Convolution::chainback(unsigned char* out, unsigned int nBits)
WRITE_BIT1(out, nBits, bit != 0U);
}
unsigned int minCost = m_oldMetrics[0];
for (unsigned int i = 0U; i < NUM_OF_STATES; i++) {
if (m_oldMetrics[i] < minCost)
minCost = m_oldMetrics[i];
}
return minCost / (M >> 1);
}
void CM17Convolution::encode(const unsigned char* in, unsigned char* out, unsigned int nBits) const