amp command - amplify sample peaks

diff --git a/winsrc/command.cpp b/winsrc/command.cpp
index 929cff070c32359caf28b3b82937736a01f13a5f..c1b3e372d4b09a456fa2b290559b182704ebb11e 100644 (file)
--- a/winsrc/command.cpp
+++ b/winsrc/command.cpp
@@ -1808,6 +1808,40 @@ static void CmdNorm(char *str)
        RepaintGraphWindow();\r
 }\r
 \r
+static void CmdAmp(char *str)\r
+{\r
+       int i, rising, falling;\r
+       int max = INT_MIN, min = INT_MAX;\r
+       for(i = 10; i < GraphTraceLen; i++) {\r
+               if(GraphBuffer[i] > max) {\r
+                       max = GraphBuffer[i];\r
+               }\r
+               if(GraphBuffer[i] < min) {\r
+                       min = GraphBuffer[i];\r
+               }\r
+       }\r
+       if(max != min) {\r
+               rising= falling= 0;\r
+               for(i = 0; i < GraphTraceLen; i++) {\r
+                       if(GraphBuffer[i+1] < GraphBuffer[i]) {\r
+                               if(rising) {\r
+                                       GraphBuffer[i]= max;\r
+                                       rising= 0;\r
+                                       }\r
+                               falling= 1;\r
+                               }\r
+                       if(GraphBuffer[i+1] > GraphBuffer[i]) {\r
+                               if(falling) {\r
+                                       GraphBuffer[i]= min;\r
+                                       falling= 0;\r
+                                       }\r
+                               rising= 1;\r
+                               }\r
+               }\r
+       }\r
+       RepaintGraphWindow();\r
+}\r
+\r
 static void CmdDec(char *str)\r
 {\r
        int i;\r
@@ -2794,6 +2828,7 @@ static struct {
        int             offline;  // 1 if the command can be used when in offline mode\r
        char            *docString;\r
 } CommandTable[] = {\r
+       {"amp",                                 CmdAmp,                                         1, "Amplify peaks"},\r
        {"askdemod",                    Cmdaskdemod,                            1, "<samples per bit> <0|1> -- Attempt to demodulate simple ASK tags"},\r
        {"autocorr",                    CmdAutoCorr,                            1, "<window length> -- Autocorrelation over window"},\r
        {"bitsamples",          CmdBitsamples,                  0, "Get raw samples as bitstring"},\r