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move new functions to utilities area

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marshmellow42 2017-03-14 16:24:14 -04:00
parent c83d6dc6fa
commit d87bf1567a
1 changed files with 50 additions and 49 deletions
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99
common/lfdemod.c
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@ -222,6 +222,56 @@ size_t findModStart(uint8_t dest[], size_t size, uint8_t threshold_value, uint8_
return i; return i;
} }
void getNextLow(uint8_t samples[], size_t size, int low, int *i) {
while ((samples[*i] > low) && (*i < size))
*i+=1;
}
void getNextHigh(uint8_t samples[], size_t size, int high, int *i) {
while ((samples[*i] < high) && (*i < size))
*i+=1;
}
// load wave counters
bool loadWaveCounters(uint8_t samples[], size_t size, int lowToLowWaveLen[], int highToLowWaveLen[], int *waveCnt, int *skip, int *minClk, int *high, int *low) {
int i=0, start, waveStart;
size_t testsize = (size < 512) ? size : 512;
if ( getHiLo(samples, testsize, high, low, 80, 80) == -1 ) {
if (g_debugMode==2) prnt("DEBUG STT: just noise detected - quitting");
return false; //just noise
}
// get to first full low to prime loop and skip incomplete first pulse
getNextHigh(samples, size, *high, &i);
getNextLow(samples, size, *low, &i);
*skip = i;
// populate tmpbuff buffer with pulse lengths
while (i < size) {
// measure from low to low
getNextLow(samples, size, *low, &i);
start = i;
//find first high point for this wave
getNextHigh(samples, size, *high, &i);
waveStart = i;
getNextLow(samples, size, *low, &i);
if (*waveCnt >= (size/32))
break;
highToLowWaveLen[*waveCnt] = i - waveStart; //first high to first low
lowToLowWaveLen[*waveCnt] = i - start;
*waveCnt += 1;
if (i-start < *minClk && i < size) {
*minClk = i - start;
}
}
return true;
}
//by marshmellow //by marshmellow
//amplify based on ask edge detection - not accurate enough to use all the time //amplify based on ask edge detection - not accurate enough to use all the time
void askAmp(uint8_t *BitStream, size_t size) { void askAmp(uint8_t *BitStream, size_t size) {
@ -887,55 +937,6 @@ uint8_t detectFSKClk(uint8_t *BitStream, size_t size, uint8_t fcHigh, uint8_t fc
//--------------------Modulation Demods &/or Decoding Section----------------------------------- //--------------------Modulation Demods &/or Decoding Section-----------------------------------
//********************************************************************************************** //**********************************************************************************************
void getNextLow(uint8_t samples[], size_t size, int low, int *i) {
while ((samples[*i] > low) && (*i < size))
*i+=1;
}
void getNextHigh(uint8_t samples[], size_t size, int high, int *i) {
while ((samples[*i] < high) && (*i < size))
*i+=1;
}
// load wave counters
bool loadWaveCounters(uint8_t samples[], size_t size, int lowToLowWaveLen[], int highToLowWaveLen[], int *waveCnt, int *skip, int *minClk, int *high, int *low) {
int i=0, start, waveStart;
size_t testsize = (size < 512) ? size : 512;
if ( getHiLo(samples, testsize, high, low, 80, 80) == -1 ) {
if (g_debugMode==2) prnt("DEBUG STT: just noise detected - quitting");
return false; //just noise
}
// get to first full low to prime loop and skip incomplete first pulse
getNextHigh(samples, size, *high, &i);
getNextLow(samples, size, *low, &i);
*skip = i;
// populate tmpbuff buffer with pulse lengths
while (i < size) {
// measure from low to low
getNextLow(samples, size, *low, &i);
start = i;
//find first high point for this wave
getNextHigh(samples, size, *high, &i);
waveStart = i;
getNextLow(samples, size, *low, &i);
if (*waveCnt >= (size/32))
break;
highToLowWaveLen[*waveCnt] = i - waveStart; //first high to first low
lowToLowWaveLen[*waveCnt] = i - start;
*waveCnt += 1;
if (i-start < *minClk && i < size) {
*minClk = i - start;
}
}
return true;
}
// look for Sequence Terminator - should be pulses of clk*(1 or 2), clk*2, clk*(1.5 or 2), by idx we mean graph position index... // look for Sequence Terminator - should be pulses of clk*(1 or 2), clk*2, clk*(1.5 or 2), by idx we mean graph position index...
bool findST(int *stStopLoc, int *stStartIdx, int lowToLowWaveLen[], int highToLowWaveLen[], int clk, int tol, int buffSize, int *i) { bool findST(int *stStopLoc, int *stStartIdx, int lowToLowWaveLen[], int highToLowWaveLen[], int clk, int tol, int buffSize, int *i) {
for (; *i < buffSize - 4; *i+=1) { for (; *i < buffSize - 4; *i+=1) {