the delay seems to not working as it should
src=switch(track_sensitive=true,[({14h06m-15h06m},delay(initial=true,7200.,zero)),({true},default)])
You would supose that at any hour between 14h06 and 15h06m it would
initialize with zero but it isn't starting.
Em 19 de outubro de 2011 11:27, Fábio Costa <[email protected]>escreveu:
> Okay i could pass a function as the switch predicate, the only problem is
> that the function was evaluated only on the first round.The code is
> something like this for now:
>
> ------------------------------------------------------------------------------------------------------------
> count=0
> def checkTime(interval)
> count=count+1
> if count>=2 then
> {true}
> else
> {false}
> end
> end
>
> src=switch(track_sensitive=true,[(checkTime(11h06m),zero),({true},default)])
>
> ------------------------------------------------------------------------------------------------
> The final code would be something like:
>
> -----------------------------------------------------------------------------------------------------------------------
> mutable alreadyPlayed={}#A dictionary or something to hold ids as keys
> with boolean value
> def checkTime(interval,id){
> if(alreadyPlayed[id]==true) then
> {false}
> else
> if(interval<=now)#Probably will need to create a function that compare
> predicate with current time for LS to use
> alreadyPlayed[id]=true
> {true}
> end
> end
> }
>
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------
> Probably i would have to change the behaviour of the switch to reevaluate
> every item after each round also.
>
> Em 19 de outubro de 2011 10:54, Fábio Costa
> <[email protected]>escreveu:
>
> 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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