Initial commit

festivald.sh

@@ -0,0 +1,95 @@
+#!/bin/bash
+
+SERIAL=/dev/ttyUSB0
+
+VOLUME_CONTROL="Line Out"
+
+RADIO1_URL="http://us2.internet-radio.com:8443/stream"
+RADIO2_URL="https://rozhlas.stream/ddur_mp3_128.mp3"
+RADIO3_URL="https://rozhlas.stream/brno_mp3_128.mp3"
+#https://rozhlas.stream/radiozurnal_aac_128.aac
+RADIO4_URL="https://ice3.abradio.cz/croretro128.mp3"
+
+killStream() {
+	kill `ps aux | grep "$1" | awk '{print $2}'` 2>/dev/null
+}
+
+playStream() {
+	mplayer "$1" </dev/null >/dev/null 2>&1 &
+}
+
+handleStream() {
+	STREAM=$1
+	STATE=$2
+	#killStream "$STREAM"
+	if [ $STATE = 1 ]; then
+		playStream "$STREAM"
+		echo "Started radio: $STREAM"
+	else
+		echo "Stopped radio: $STREAM"
+	fi
+}
+
+execVolume() {
+	VOLUME_RAW=`echo "scale=4; $1/255*100" | bc`
+	VOLUME=`printf "%.0f%%" "$VOLUME_RAW"`
+	amixer sset "$VOLUME_CONTROL" "$VOLUME" >/dev/null &
+	echo Volume set to $VOLUME
+	#echo Volume set to $1
+}
+
+
+execButton() {
+	case $1 in
+		1)
+			handleStream "$RADIO1_URL" "$2"
+			;;
+		2)
+			handleStream "$RADIO2_URL" "$2"
+			;;
+		3)
+			handleStream "$RADIO3_URL" "$2"
+			;;
+		4)
+			handleStream "$RADIO4_URL" "$2"
+			;;
+		*)
+			echo "Unknown button '$1'." >&2
+			;;
+	esac
+}
+
+process_event() {
+	case $1 in
+		volume)
+			execVolume "$2"
+			;;
+
+		button*)
+			NUM=`echo $1 | tr -dc [:digit:]`
+			execButton "$NUM" "$2"
+			;;
+
+		"")
+			;;
+
+		*)
+			echo "Unknown event '$1'." >&2
+			;;
+	esac
+}
+
+consume_events() {
+	while true; do
+		IFS=$'\r'= read EVENT VALUE
+		if [ $? == 0 ]; then
+			#echo EVENT: $EVENT = $VALUE
+			process_event "$EVENT" "$VALUE"
+		else
+			echo Invalid input. >&2
+		fi
+	done
+}
+
+cat $SERIAL | consume_events
+