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amp command - amplify sample peaks

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This commit is contained in:
adam@algroup.co.uk 2009-09-01 23:17:57 +00:00
commit 523f4c90a1
1 changed files with 35 additions and 0 deletions
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35
winsrc/command.cpp
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@ -1808,6 +1808,40 @@ static void CmdNorm(char *str)
RepaintGraphWindow(); RepaintGraphWindow();
} }
static void CmdAmp(char *str)
{
int i, rising, falling;
int max = INT_MIN, min = INT_MAX;
for(i = 10; i < GraphTraceLen; i++) {
if(GraphBuffer[i] > max) {
max = GraphBuffer[i];
}
if(GraphBuffer[i] < min) {
min = GraphBuffer[i];
}
}
if(max != min) {
rising= falling= 0;
for(i = 0; i < GraphTraceLen; i++) {
if(GraphBuffer[i+1] < GraphBuffer[i]) {
if(rising) {
GraphBuffer[i]= max;
rising= 0;
}
falling= 1;
}
if(GraphBuffer[i+1] > GraphBuffer[i]) {
if(falling) {
GraphBuffer[i]= min;
falling= 0;
}
rising= 1;
}
}
}
RepaintGraphWindow();
}
static void CmdDec(char *str) static void CmdDec(char *str)
{ {
int i; int i;
@ -2794,6 +2828,7 @@ static struct {
int offline; // 1 if the command can be used when in offline mode int offline; // 1 if the command can be used when in offline mode
char *docString; char *docString;
} CommandTable[] = { } CommandTable[] = {
{"amp", CmdAmp, 1, "Amplify peaks"},
{"askdemod", Cmdaskdemod, 1, "<samples per bit> <0|1> -- Attempt to demodulate simple ASK tags"}, {"askdemod", Cmdaskdemod, 1, "<samples per bit> <0|1> -- Attempt to demodulate simple ASK tags"},
{"autocorr", CmdAutoCorr, 1, "<window length> -- Autocorrelation over window"}, {"autocorr", CmdAutoCorr, 1, "<window length> -- Autocorrelation over window"},
{"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},