I've been checking out this script. It's interesting!
http://savonet.sourceforge.net/doc-svn/dolebrai.html
What language is the liq script based on? It's unlike anything I'm used to.
I've read about specific functions in the API docs, but I'm still
unclear. These areas for example
###############
default = single(id="default",default)
s =
request.dynamic(id="scheduler",default_duration=30.,length=1.,
fun () ->
request(get_process_output("#{scripts}/scheduler.pl 2>> #{scripts}/log")))
s = fallback([ request.queue(id="q"), s, default ])
###################
>> default = single(id="default",default)
I understand what is happening here, you're taking an individual mp3
file, and setting up to be a source.
>> s =
>> request.dynamic(id="scheduler",default_duration=30.,length=1.,
>> fun () ->
>> request(get_process_output("#{scripts}/scheduler.pl 2>>
>> #{scripts}/log")))
This is a little confusing to me. I understand this is probably the
source which calls a perl script, which queries your database and
outputs a result in the annotated format you mentioned. I don't
understand the purpose of fun(). I noticed fun() is defined in an
add_protocol function, and is setup to take parameters. Though no
parameters are passed in though request.dynamic, at least not in a way
I understand. Can you explain what's happening here?
On Fri, Apr 17, 2009 at 8:46 AM, Romain Beauxis <[email protected]> wrote:
> Le Thursday 16 April 2009 23:33:22 Brandon Casci, vous avez écrit :
>> That sounds good. How do you have liquidsoap getting query results?
>> Also are your query result simply track URI's
>
> We use a request.dynamic source that pulls the result from a custom script.
> The query result is not only a URI, we pass additional informations using the
> annotate protocol. For instance:
>
> annotate:bla="foo",id="1234":/path/to/file.mp3
>
> Will add the two metadata bla and id with their respective values to the
> metadata of the file mentioned at the end. The general grammar for this query
> is:
>
> annotate:label="value",(...):URI
>
> where URI can be another protocol, such as ftp:// for instance..
>
>
> Romain
>
>
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