Le lundi 16 août 2010 14:01:15, rafael a écrit :
> Hi everyone,
Hi !
> A very simple question:
>
> Is there a way to join (concatenate) playlists?
>
> I have a randomized playlist for a music hour.
>
> I already have the middle jingle playing every 4 musics ("You are
> hearing mpb, the best of brazilian music)
>
> mpb = rotate(weights=[4,1], [playlist("/home/radio/audio/mpb"),
> single("/home/radio/audio/apoio/bloco_mpb.mp3")])
>
> I just need to add a single mp3 file at the begining of it. ("Now you
> will hear...")
I think you should be able to do this by using the append operator:
10:20 to...@leonard /tmp/audacity-1.3.12/src/effects% liquidsoap -h append
*** One entry in scripting values:
Append an extra track to every track. Set the metadata 'liq_append' to 'false'
to inhibit appending on one track.
Category: Source / Track Processing
Type: (?id:string, ?merge:bool, ?insert_missing:bool, source('a),
(([(string*string)])->source('a)))->source('a)
Parameters:
* id : string (default "")
Force the value of the source ID.
* merge : bool (default false)
Merge the track with its appended track.
* insert_missing : bool (default true)
Treat track beginnings without metadata as having empty one.
* (unlabeled) : source('a) (default None)
* (unlabeled) : ([(string*string)])->source('a) (default None)
Given the metadata, build the source producing the track to append. This
source is allowed to fail (produce nothing) if no relevant track is to be
appended.
You need to provide the operator with a function to create the single source
you want to play the single. This is a function that takes the metadata and
returns a source. I can think of the following, for instance, if the file does
not depend on the metadata:
def add_track(_) =
# Create a non-interactive queued source with the file
request = request.create("/home/radio/audio/beginmpb.mp3")
request.queue(interactive=false,queue=[request])
end
And then:
s = append(s,add_track)
It should also be possible to define the request.queue source outside of the
function, but I am not sure about this. Maybe David could tell you more..
Let us know if this is what you want..
Romain
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