gay oops i meant gain

README.md

@@ -145,7 +145,7 @@ first, the normal args, like `pifmrds -arg argtoarg?`<br>
 `-rawchannels` - change the sample rate if raw<br>
 `-rawsamplerate` - same stuff but sample rate<br>
 `-cutofffreq` - fm broadcast uses a cut off freq around 16-18 khz, to avoid interferance with the 19khz stereo pilot<br>
-`-audiogain` - audio too loud or too quiet? use this, this defines how many times the audio can be, here pass in int, but you can pass in `GAI {float}` on the fifo pipe (dont ask)<br>
+`-audiogain` - audio too loud or too quiet? use this, this defines how many times the audio can be<br>
 `-power` - for now works only for rpi3, but you can change the code very easy to fix it for your pi<br>
 `-disablerds` - same arg as bfr, pass this in and no rds anymore<br>
 `-disablecompressor` - same as bfr, dont pass this please, DO NOT<br>
@@ -168,6 +168,7 @@ now you know what you can pass as the args to the program, but theres a pipe sti
 `COA` - change compressor attack<br>
 `RDV` - gain but not audio but rds gain<br>
 `PAU` - pause, kinda, it will cancel out any audio, you could use `GAI 0` but you could forgor the old gain value, right?<br>
+`PIV` - gain but not audio or rds but stereo pilot gain<br>
 <br>
 and thats all, and remember kids dont pirate
 

src/pifmrds/control_pipe.c

@@ -187,6 +187,12 @@ ResultAndArg poll_control_pipe() {
 			if(togg) printf("ON\n"); else printf("OFF\n");
 			resarg.res = CONTROL_PIPE_PAUSE_SET;
 			resarg.arg_int = togg;
+		} else if(fifo[0] == 'P' && fifo[1] == 'I' && fifo[2] == 'V') {
+			printf("Set Stereo Pilot Volume to ");
+			printf(arg);
+			printf("\n");
+			resarg.res = CONTROL_PIPE_PILVOL_SET;
+			resarg.arg = arg;
 		}
 	}
 	return resarg;

src/pifmrds/control_pipe.h

@@ -23,6 +23,7 @@
 #define CONTROL_PIPE_CT_SET 16
 #define CONTROL_PIPE_RDSVOL_SET 17
 #define CONTROL_PIPE_PAUSE_SET 18
+#define CONTROL_PIPE_PILVOL_SET 19 //fitting
 
 typedef struct {
     int res;

src/pifmrds/pi_fm_rds.cpp

@@ -223,6 +223,8 @@ int tx(uint32_t carrier_freq, char *audio_file, uint16_t pi, char *ps, char *rt,
                 rds_volume = std::stof(pollResult.arg);
             } else if(pollResult.res == CONTROL_PIPE_PAUSE_SET) {
                 paused = pollResult.arg_int;
+            } else if(pollResult.res == CONTROL_PIPE_PILVOL_SET) {
+                pilot_volume = std::stof(pollResult.arg);
             }
         }