spradio-liquidsoap/spradio.liq

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%include "secrets.liq"
set("log.file", true)
set("log.file.path", "/home/liquidsoap/spradio.log")
set("log.stdout", true)
set("log.level", 4)
set("server.telnet", false)
set("scheduler.generic_queues", 5)
set("scheduler.fast_queues", 3)
set("scheduler.non_blocking_queues", 3)
set("audio.converter.samplerate.libsamplerate.quality", "best")
security = single(id="default", fallback_audio)
# Tweaked custom crossfade to deal with jingles..
def smart_cross(~start_next=5.,~fade_in=3.,~fade_out=3.,
~default=(fun (a,b) -> sequence([a, b])),
~high=-15., ~medium=-32., ~margin=4.,
~width=2.,~conservative=false,s)
fade.out = fade.out(type="sin", duration=fade_out)
fade.in = fade.in(type="sin", duration=fade_in)
add = fun (a,b) -> add(normalize=false, [b, a])
log = log(label="smart_cross")
def transition(a,b,ma,mb,sa,sb)
list.iter(fun(x)-> log(level=4, "Before: #{x}"), ma)
list.iter(fun(x)-> log(level=4, "After : #{x}"), mb)
if ma["type"] == "J" or mb["type"] == "J" then
log("Old or new file is a jingle: sequenced transition.")
sequence([sa, sb])
elsif
# Do not fade if it's already very low.
b >= a + margin and a <= medium and b <= high
then
log("new >= old + margin, old <= medium and new <= high.")
log("Do not fade if it's already very low.")
log("Transition: crossed, no fade.")
add(sa, sb)
# What to do with a loud end and a quiet beginning ?
# A good idea is to use a jingle to separate the two tracks,
# but that's another story.
else
# Otherwise, A and B are just too loud to overlap nicely,
# or the difference between them is too large and overlapping would
# completely mask one of them.
# log("No transition: using default.")
# default(sa, sb)
log("Transition: crossed, fade-in, fade-out.")
add(fade.out(sa), fade.in(sb))
end
end
cross(width=width, duration=start_next,
conservative=conservative, transition,s)
end
def get_http_data(headers, url) =
if string.contains(prefix='https', url) then
let (status, _, data) = https.get(headers=headers, url)
let (_, status_code, _) = status
(status_code, data)
else
let (status, _, data) = http.get(headers=headers, url)
let (_, status_code, _) = status
(status_code, data)
end
end
def post_http_data(headers, postdata, url) =
if string.contains(prefix='https', url) then
let (status, _, data) = https.post(headers=headers, data=postdata, url)
let (_, status_code, _) = status
(status_code, data)
else
let (status, _, data) = http.post(headers=headers, data=postdata, url)
let (_, status_code, _) = status
(status_code, data)
end
end
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def next_song() =
log = log(label="next_song")
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log("Requesting the next song from #{url_next}")
let (status_code, data) = get_http_data(api_headers_next, url_next)
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log(data)
if status_code == 200 then
request.create(data)
else
request.create(fallback_annotate)
end
end
def change_meta(m) =
log = log(label="change_meta")
artist = m["artist"]
game = m["game"]
title = m["title"]
log("Request ID: "^string.quote(m["req_id"]))
log("Artist: #{artist} -- Game: #{game} -- Title: #{title}")
[("artist","#{artist}"),
("title","#{title} [#{game}]"),
("req_id",m["req_id"]),
("type",m["type"]),
("game",m["game"]),
("replay_gain",m["replay_gain"])]
end
def just_played(m) =
log = log(label="just_played")
if m["req_id"] != "" then
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log('Letting server know we played request ID #{m["req_id"]} here: #{url_played}')
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played_song = json_of(compact=true, [("song_request", int_of_string(m["req_id"]))])
let (status_code, data) = post_http_data(api_headers_played, played_song, url_played)
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if status_code == 204 then
log('Successfully reported that the song was played.')
else
log('Error while reporting the song was played: #{data}')
end
else
log("No request ID! Stream just started or there are other problems.")
end
end
radio = request.dynamic(id="main", default_duration=120., length=60., next_song)
radio = fallback(track_sensitive=false, [radio, security])
radio = map_metadata(update=false, change_meta, radio)
radio = on_metadata(id="main", just_played, radio)
radio = amplify(1., override="replay_gain", radio)
radio = smart_cross(radio)
output.icecast(%mp3,
encoding="UTF-8", protocol="http",
name=radio_name, description=radio_description, genre=radio_genre, url=radio_url_main,
host=stream_address, port=stream_port, password=stream_password, mount="stream128.mp3",
radio)
output.icecast(%vorbis(samplerate=44100, channels=2, quality=0.4),
encoding="UTF-8", protocol="http",
name=radio_name, description=radio_description, genre=radio_genre, url=radio_url_main,
host=stream_address, port=stream_port, password=stream_password, mount="stream128.ogg",
radio)
output.icecast(%vorbis(samplerate=44100, channels=2, quality=0.0),
encoding="UTF-8", protocol="http",
name=radio_name, description=radio_description, genre=radio_genre, url=radio_url_main,
host=stream_address, port=stream_port, password=stream_password, mount="stream64.ogg",
radio)