2011/11/14 Henry Favretto <[email protected]>:
>
> On 14/11/2011 15:38, Romain Beauxis wrote:
>> 2011/11/14 Henry Favretto <[email protected]>:
>>>
>>>
>>> On 14/11/2011 14:40, Romain Beauxis wrote:
>>>> 2011/11/14 Henry Favretto <[email protected]>:
>>>>>
>>>>> On 14/11/2011 13:03, Romain Beauxis wrote:
>>>>>> 2011/11/14 Henry Favretto:
>>>>>>> Hi there,
>>>>>>
>>>>>> Hi Henry!
>>>>>>
>>>>>>> I recently migrated my old script from 0.9.3 to 1.0.0 running on my
>>>>>>> trusty old Debian Lenny box without much trouble except for one
>>>>>>> rather subtle issue regarding the smart_crossfade utility
>>>>>>> function...
>>>>>>>
>>>>>>> In my script I use it this way:
>>>>>>>
>>>>>>> ************************ # Crossfade songs 15 seconds fade.out =
>>>>>>> fade.out(type="sin",duration=15.0) fade.in =
>>>>>>> fade.in(type="sin",duration=10.0) add = fun (a,b) ->
>>>>>>> add(normalize=false,[b, a]) radio = smart_crossfade( fade_out =
>>>>>>> 15.0, fade_in = 10.0, start_next = 25.0, margin = 3.0, high =
>>>>>>> -15.0, medium = -30.0, conservative = true, default = fun (a,b) ->
>>>>>>> add(fade.out(a),fade.in(b)), radio ) ************************
>>>>>>>
>>>>>>> I noticed (by listening to the stream and looking at the log) that
>>>>>>> for some reason my provided default transition is never applied
>>>>>>> e.g. when "No transition. Using default" is logged then the
>>>>>>> sequence transition is still used (the function's default).
>>>>>>>
>>>>>>> IIRC the same script used to work as expected in 0.9.3 e.g. using a
>>>>>>> crossfade when the default transition is applied...
>>>>>>>
>>>>>>> Did I miss something?
>>>>>>
>>>>>> There is a subtle detail with add() that could explain your issue or
>>>>>> at least needs a fix. By default, add([a,b,c,d]) relays metadata and
>>>>>> track limits of the first source, a in this example.
>>>>>>
>>>>>> Thus, on your script, you should write: default = fun (a,b) ->
>>>>>> add([fade.in(b),fade.out(a)]) (by the way, did you miss the [ ] in
>>>>>> your example?) since you want metadata and track limit from the new
>>>>>> source (b).
>>>>>>
>>>>>> Please, try this and let us know if your issue is still not fixed
>>>>>> :-)
>>>>>>
>>>>>> Romain
>>>>>
>>>>> Hi Romain,
>>>>>
>>>>> Indeed, I guess I must have missed those brackets.... my bad.
>>>>>
>>>>> Okay, so I did your proposed changes but now it gives me the following
>>>>> error:
>>>>>
>>>>> ************* At line 46, char 33-56: this value has type [_] but it
>>>>> should be a subtype of (the type of the value at line 37, char 13)
>>>>> source(_) (infered at line 37, char 42) *************
>>>>>
>>>>> where line 46 in my script is
>>>>>
>>>>> default = fun (a,b) -> add([fade.in(b),fade.out(a)])
>>>>>
>>>>> and line 37 is
>>>>>
>>>>> add = fun (a,b) -> add(normalize=false,[b, a])
>>>>>
>>>>> Any idea what's wrong here?
>>>>
>>>> Well you have redefined add, thus your initial script was in fact
>>>> correct, including the "new source should come first in add([])" bit..
>>>>
>>>> Could you try to add some printing in your default transition so as to
>>>> check whether your default function is executed or that the problem comes
>>>> from elsewhere. Something like this: default = fun (a,b) ->
>>>> print("\n\nDEFAULT\n\n") add(fade.out(a),fade.in(b)), ...
>>>
>>> When I use the mentioned print statement I get:
>>>
>>> Line 46, char 55 before "(": Parse error!
>>>
>>> Sorry if I'm being ignorant here but I'm still learning....
>>
>> No pb!
>>
>> Could you show me a script extract around line 46? Right now I do not have
>> enough informations to help you..
>
> Sure, here is the whole snippet again:
>
> ************
> # Crossfade songs 15 seconds
> fade.out = fade.out(type="sin",duration=15.0)
> fade.in = fade.in(type="sin",duration=10.0)
> add = fun (a,b) -> add(normalize=false,[b, a])
> radio = smart_crossfade(
> fade_out = 15.0,
> fade_in = 10.0,
> start_next = 25.0,
> margin = 3.0,
> high = -15.0,
> medium = -30.0,
> conservative = true,
> default = fun (a,b) -> print("\n\nDEFAULT\n\n")
> add(fade.out(a),fade.in(b)),
> radio
> )
> ************
>
> Line 47 is the third from the bottom.
Weird.. Anyway, you can do this:
************
# Crossfade songs 15 seconds
def smart_default(a,b) =
print("\n\nDEFAULT\n\n")
add(fade.out(a),fade.in(b))
end
fade.out = fade.out(type="sin",duration=15.0)
fade.in = fade.in(type="sin",duration=10.0)
add = fun (a,b) -> add(normalize=false,[b, a])
radio = smart_crossfade(
fade_out = 15.0,
fade_in = 10.0,
start_next = 25.0,
margin = 3.0,
high = -15.0,
medium = -30.0,
conservative = true,
default = smart_default,
radio
)
************
R.
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