Basically, AutoDJ is a feature that plays random songs (with jingles every 4 tracks) if no show is scheduled in Libretime. I’m curious to know your AutoDj solution !
My AutoDJ solution works this way :
1- You have to comment (disable) those line in ls_script.liq :
#default = amplify(id="silence_src", 0.00001, noise())
and
#if !off_air_meta == "" then
# off_air_meta := "LibreTime - offline"
#end
#def map_off_air_meta(m) =
# [("title", !off_air_meta)]
#end
#default = map_metadata(map_off_air_meta, default)
2- Then copy your AutoDJ code just after the amplify function you just disabled
Here is my AutoDJ code :
# Your jingles
jingles = playlist("/home/myradio/jingle")
# Your backup playlist
musics = playlist(mode="randomize",reload=1,reload_mode="rounds","/home/myradio/music")
# Your hours time signals
clock = single(id="clock","/home/myradio/clock/clock.mp3")
# Your security jingle if the AutoDJ drop
security = single("/home/myradio/offair/offair.mp3")
# 1 jingle every 4 songs
streamradio = rotate(weights=[1,4], [jingles, musics])
# Setting up the crossfade
def crossfade (~start_next=5.,~fade_in=3.,
~fade_out=3., ~width=2.,
~conservative=false,s)
high = -20.
medium = -32.
margin = 4.
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="crossfade")
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
# If A and B and not too loud and close,
# fully cross-fade them.
a <= medium and
b <= medium and
abs(a - b) <= margin
then
log("Transition: crossed, fade-in, fade-out.")
add(fade.out(sa),fade.in(sb))
elsif
# If B is significantly louder than A,
# only fade-out A.
# We don't want to fade almost silent things,
# ask for >medium.
b >= a + margin and a >= medium and b <= high
then
log("Transition: crossed, fade-out.")
add(fade.out(sa),sb)
elsif
# Do not fade if it's already very low.
b >= a + margin and a <= medium and b <= high
then
log("Transition: crossed, no fade-out.")
add(sa,sb)
elsif
# Opposite as the previous one.
a >= b + margin and b >= medium and a <= high
then
log("Transition: crossed, fade-in.")
add(sa,fade.in(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: just sequencing.")
sequence([sa, sb])
end
end
cross(width=width, duration=start_next,
conservative=conservative,
transition,s)
end
# Enable crossfade between Tracks and Jingles
streamradio = crossfade(start_next=5.,fade_out=3.,fade_in=3.,streamradio)
# Enable every hours time signals
streamradio = add([streamradio, switch([
({0m0s},clock),
])
])
# Metadata updater
def update_metadata(m) =
title = m["title"]
ignore(title)
artist = m["artist"]
ignore(artist)
[("artist","#{artist}"),("title","#{title}")]
end
# Enable AutoDJ with metadata
default = fallback(track_sensitive = false,[streamradio,security])
default = map_metadata(update_metadata, default)