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#!/usr/bin/liquidsoap
# Radio Susan — with track announcements
set("log.file.path", "/var/lib/radio/radio.log")
set("log.level", 3)
set("server.telnet", true)
set("server.telnet.port", 1234)
set("ffmpeg.content_type.parse_metadata", false)
# State file for track metadata exchange
state_file = "/var/lib/radio/track_state.json"
# Track counter
track_count = ref(0)
music = playlist(
mode="randomize",
reload=3600,
reload_mode="watch",
"/var/lib/radio/playlists/all.m3u"
)
music = drop_video(music)
# Write track metadata to state file on each new track
music = on_track(fun(m) -> begin
track_count := !track_count + 1
artist = m["artist"]
title = m["title"]
count = !track_count
# Write JSON state file
data = '{"artist":"#{artist}","title":"#{title}","count":#{string_of(count)}}'
ignore(file.write(data=data, state_file))
log("Track #{string_of(count)}: #{artist} - #{title}")
end, music)
# Jingles
jingles = playlist(
mode="randomize",
"/var/lib/radio/jingles"
)
jingles = drop_video(jingles)
jingles = amplify(3.0, jingles)
# Dynamic announcements
def get_announcement() =
result = list.hd(default="", process.read.lines("/usr/bin/python3 /var/lib/radio/announce_tracks.py --state"))
if result != "" then
log("Announcement: #{result}")
request.create(result)
else
# Fallback to a random jingle
null()
end
end
announcements = request.dynamic(get_announcement)
announcements = drop_video(announcements)
announcements = amplify(3.0, announcements)
# Rotate: 2 music tracks, then 1 announcement or jingle
radio = rotate(weights=[2, 1], [music, random(weights=[1, 1], [jingles, announcements])])
radio = mksafe(radio)
output.icecast(
%mp3(bitrate=192),
host="localhost",
port=8910,
password=icecast_password,
mount="/stream",
name="Radio Susan",
description="Personal radio station",
genre="Eclectic",
url="https://radio.jihakuz.xyz",
radio
)
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