added switching input source feature

yamahactrl.sh

@@ -37,12 +37,18 @@ power_off() {
     curl -X POST -d '<YAMAHA_AV cmd="PUT"><Main_Zone><Power_Control><Power>Standby</Power></Power_Control></Main_Zone></YAMAHA_AV>' http://$YAMAHA_IP/YamahaRemoteControl/ctrl
 }
 
+set_input() {
+echo "dsfsd $1"
+    curl -s -X POST -d "<YAMAHA_AV cmd=\"PUT\"><Main_Zone><Input><Input_Sel>HDMI$1</Input_Sel></Input></Main_Zone></YAMAHA_AV>" http://$YAMAHA_IP/YamahaRemoteControl/ctrl
+}
+
 print_help() {
     echo -e "Bash script to control Yamaha Amplituner RX-V series."
     echo -e "Usage: $0 command\n"
     echo -e "Possible commands:"
     echo -e " -volup\t\t Set volume up by 1"
     echo -e " -voldown\t Set volume down by 1"
+    echo -e " -input <i>\t Set input source 1-4"
     echo -e " -on\t\t Set power on"
     echo -e " -off\t\t Set power off"
     exit 0
@@ -62,6 +68,9 @@ case "$1" in
   -voldown)
     volume_down
     ;;
+  -input)
+    set_input "$2"
+    ;;
   *)
     print_help
 esac