It's kind like that but the interval would be large enough .
Let's say i putted a source that lasts for 2 hours at 8h , and i put a
jingle to play at 9h. After the end of this two hour source at 10 o'clock
the jingle would be played and move off the list.
Will see the functions you said, a liquidsoap only aproach would be more
interesting than hacking the code.
Em 19 de outubro de 2011 10:40, David Baelde
<[email protected]>escreveu:
> OK I see,
>
> 2011/10/19 Fábio Costa <[email protected]>:
> >
> src=switch(track_sensitive=true,single=[true,false],[({08h44},jingle),({true},default)])
>
> This does not play the jingle often enough.
>
> >
> src=switch(track_sensitive=true,single=[true,false],[({08h44-9h44},delay(3600,,jingle)),({true},default)])
>
> This is a solution, but making the time predicate larger forces you to
> add a delay, and the choice of one hour seems ad-hoc, there might not
> be a sensible default in all cases.
>
> Would this be a good specification of what you're trying to do: given
> a time interval (in your example, 8h44 to 8h45) be ready to play the
> source during the interval, but only once?
>
> If so, it should be possible to do this as a script, writing a
> function interval_once which takes something like {8h44} and a source,
> and returns a pair (F,source) to be used in a switch list, where F is
> a predicate that reads a flag (reference on a boolean): first it reads
> the interval (obtaining in_interval), and unsets the flag if we're
> outside the interval; then if the flag is not set it returns
> in_interval, if the flag is set it returns false. In addition, wrap
> the source in a on_track that sets the flag when a track starts
> playing, and you should be close to done.
>
> Tell me what you think,
>
> David
>
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