Hi Rene,
I think your problem is how to reference variables defined outside a
function OCAML handles scope.
To increment a number inside a function should be done like that.
timesplayed = ref 1
def bumpcounter () =
timesplayed := !timesplay + 1
end
Note the 'ref' when you define the variable in the main program
Then to use that variable inside the function, you need to prefix it with !
and to set it, you use := instead of just =
Hope this helps.
Nick
On Sun, Oct 22, 2017 at 11:55 AM, René Jaun <[email protected]> wrote:
> Hello Everyone,
>
> Sorry for re-bothering you with this,
>
> But I'm still stuck at the problem I described a few months ago.
>
> Back then, I've been trying to set up a "song counter"
>
> (which would enable me to switch the source to unavailable after having
> played like 15 items from playlist / source).
>
> But whatever I tried, I could not get a simple thing like
>
> songsplayed = songsplayed+1
>
>
> to work.
>
>
> Now, I just discovered that in latest LiquidSoap, there is the "time"
> function, which I think might do the trick just fine.
>
>
> However, I don't get this one to work either.
>
> Could someone try helping me out once more?
>
>
> What I try to do:
>
> As soon as my live source goes offline, music should be played for about
> 15 minutes.
>
> After 15 minutes, the "music" should become unavailable and instead, a
> single file should be played (telling the listeners that no broadcast is
> going on).
>
>
> What I get:
>
> Currently, the line {time - musictime < 300} results in:
>
> this value (referring to: musictime) has type
> ()->float
>
> but it should be a subtype of
> something that is a number type
>
> These are the important lines:
>
> #The stream should start with music
>
> musictime = time
>
>
> #Transition to live source
>
> def GoLive (old, new) =
>
> source.skip(old)
>
> sequence([old,new])
>
> end
>
>
> #Transition away from live
>
>
> def ComeHome(old,new) =
>
> musictime = time
>
> sequence(old,, new)
>
> end
>
>
> #The soures
>
> offairloop = mksave(playlist("/home/pi/radio/loop"))
>
> themusic = playlist("/mnt/storage/radio/music")
>
>
> #The switch, where the magic is supposed to happen
>
> nonliveradio = switch (track_sensitive = true, [
>
> ({time - musictime < 300}, themusic),
>
> ({true}, offairloop)
>
> ])
>
>
> #Later, I'll add the live source, and do a fallback: When live goes off,
> switch to nonliveradio...
>
> #But that I think is not important just yet :-(
>
>
> So once more, I'd appreciate any pointers.
>
> Thanks so much!
> And best regards,
> René
>
>
>
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