codigo python inicial

potenciometroVLC.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+import time
+import serial
+import os
+import subprocess
+
+ser = serial.Serial(port='/dev/ttyUSB0',baudrate = 9600,parity=serial.PARITY_NONE,stopbits=serial.STOPBITS_ONE,bytesize=serial.EIGHTBITS,timeout=1)
+last = "0"
+cmd1="pactl list sink-inputs | grep -B 18 -i 'VLC media player (LibVLC 3.0.16)' | grep -i 'Entrada de destino' | awk '{print $4}'"
+vlcID = subprocess.Popen(cmd1,shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE,universal_newlines=True); vlcOut,vlcErr=vlcID.communicate(); rc=vlcID.wait()
+vlcOut = vlcOut[1:]
+vlcOut = vlcOut.replace('\n', '')
+
+print("ID del VLC para usar con pactl: " + vlcOut)
+
+while 1:
+  x = ser.readline()
+  x = x.decode()
+  x = x.replace('\n', '')
+  x = x.replace('\r', '')
+
+  if ( x != last ):
+    vlcID = subprocess.Popen(cmd1,shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE,universal_newlines=True); vlcOut,vlcErr=vlcID.communicate(); rc=vlcID.wait()
+    vlcOut = vlcOut[1:]
+    vlcOut = vlcOut.replace('\n', '')
+    #cmd2 = "amixer set Master " + str(x) + "%"
+    #cmd2 = "amixer set Headphone " + str(x) + "%"
+    cmd2 = "pactl set-sink-input-volume " + vlcOut + " " + str(x) + "%"
+    print(cmd2)
+    os.system(cmd2)
+    last = x