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..and the AskEdgeDetect

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iceman1001 2017-07-28 00:50:27 +02:00
parent 86237b629f
commit bee9e986f1
2 changed files with 17 additions and 10 deletions
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25
client/cmddata.c
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@ -1020,6 +1020,18 @@ int CmdGraphShiftZero(const char *Cmd)
return 0; return 0;
} }
int AskEdgeDetect(const int *in, int *out, int len, int threshold) {
int last = 0;
for(int i = 1; i<len; i++) {
if (in[i]-in[i-1] >= threshold) //large jump up
last = 127;
else if(in[i]-in[i-1] <= -1 * threshold) //large jump down
last = -127;
out[i-1] = last;
}
return 0;
}
//by marshmellow //by marshmellow
//use large jumps in read samples to identify edges of waves and then amplify that wave to max //use large jumps in read samples to identify edges of waves and then amplify that wave to max
//similar to dirtheshold, threshold commands //similar to dirtheshold, threshold commands
@ -1027,19 +1039,12 @@ int CmdGraphShiftZero(const char *Cmd)
int CmdAskEdgeDetect(const char *Cmd) int CmdAskEdgeDetect(const char *Cmd)
{ {
int thresLen = 25; int thresLen = 25;
int last = 0; int ans = 0;
sscanf(Cmd, "%i", &thresLen); sscanf(Cmd, "%i", &thresLen);
for(int i = 1; i < GraphTraceLen; ++i){ ans = AskEdgeDetect(GraphBuffer, GraphBuffer, GraphTraceLen, thresLen);
if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
last = 127;
else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
last = -127;
GraphBuffer[i-1] = last;
}
RepaintGraphWindow(); RepaintGraphWindow();
return 0; return ans;
} }
/* Print our clock rate */ /* Print our clock rate */

2
client/cmddata.h
View file

@ -78,6 +78,8 @@ int getSamples(const char *Cmd, bool silent);
void setGrid_Clock(uint8_t clock); void setGrid_Clock(uint8_t clock);
int directionalThreshold(const int* in, int *out, size_t len, int8_t up, int8_t down); int directionalThreshold(const int* in, int *out, size_t len, int8_t up, int8_t down);
extern int AskEdgeDetect(const int *in, int *out, int len, int threshold);
int CmdDataIIR(const char *Cmd); int CmdDataIIR(const char *Cmd);
#define MAX_DEMOD_BUF_LEN (1024*128) #define MAX_DEMOD_BUF_LEN (1024*128)