Hey all! So more testing shows that I was wrong. `buffer()` sounds like a
solution to have proper transitions between live and playlists. Here's the
example I'm testing:
```
# This is to make sure that we always do a fade transition:
def smart_crossfade (~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=true,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_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)
log("Transition: crossed, fade-in, fade-out.")
add(fade.out(sa),fade.in(sb))
end
smart_cross(width=width, duration=start_next, conservative=conservative,
transition,s)
end
live = input.harbor("test")
live = buffer(fallible=true,buffer=10.,live)
pl = playlist("~/Music")
s = fallback(track_sensitive=false,[live,pl])
s = on_metadata(print,s)
s = smart_crossfade(s)
```
Couple things to note:
* The `buffer` needs to have data for both the transition in and out of the
source. Here, we buffer `5.` seconds each time so I set it to `10.`. You can do
more for good practice. Remember, though, that this will delay the time the
live sources goes on the air by as much time.
* There was a slight bug preventing a proper `live->playlist` transition. It's
fixed with the latest master
If any of y'all could test with the latest `master` that would be great. I'm
leaving this open as I want to make sure this is in the doc somewhere before
closing.
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