97 lines
1.6 KiB
Bash
Executable File
97 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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SERIAL=/dev/ttyUSB0
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VOLUME_CONTROL="Line Out"
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RADIO1_URL="http://us2.internet-radio.com:8443/stream"
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RADIO2_URL="https://rozhlas.stream/ddur_mp3_128.mp3"
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RADIO3_URL="https://rozhlas.stream/brno_mp3_128.mp3"
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#https://rozhlas.stream/radiozurnal_aac_128.aac
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RADIO4_URL="https://ice3.abradio.cz/croretro128.mp3"
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killStream() {
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kill `ps aux | grep "$1" | awk '{print $2}'` 2>/dev/null
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}
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playStream() {
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mplayer "$1" </dev/null >/dev/null 2>&1 &
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}
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handleStream() {
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STREAM=$1
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STATE=$2
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#killStream "$STREAM"
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if [ $STATE = 1 ]; then
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playStream "$STREAM"
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echo "Started radio: $STREAM"
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else
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echo "Stopped radio: $STREAM"
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fi
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}
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execVolume() {
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VOLUME_RAW=`echo "scale=4; $1/255*100" | bc`
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VOLUME=`printf "%.0f%%" "$VOLUME_RAW"`
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amixer sset "$VOLUME_CONTROL" "$VOLUME" >/dev/null &
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echo Volume set to $VOLUME
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#echo Volume set to $1
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}
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execButton() {
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case $1 in
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1)
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handleStream "$RADIO1_URL" "$2"
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;;
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2)
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handleStream "$RADIO2_URL" "$2"
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;;
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3)
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handleStream "$RADIO3_URL" "$2"
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;;
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4)
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handleStream "$RADIO4_URL" "$2"
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;;
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*)
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echo "Unknown button '$1'." >&2
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;;
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esac
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}
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process_event() {
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case $1 in
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volume)
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execVolume "$2"
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;;
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button*)
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NUM=`echo $1 | tr -dc [:digit:]`
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execButton "$NUM" "$2"
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;;
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"")
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;;
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*)
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echo "Unknown event '$1'." >&2
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;;
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esac
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}
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consume_events() {
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while true; do
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IFS=$'\r'= read EVENT VALUE
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if [ $? == 0 ]; then
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#echo EVENT: $EVENT = $VALUE
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process_event "$EVENT" "$VALUE"
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else
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echo Invalid input. >&2
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fi
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done
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}
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stty -F $SERIAL 9600 cs8 -cstopb -parenb
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cat $SERIAL | consume_events
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