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.
Henry
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