On Mon, 31 Jan 2011 04:35:35 -0500, David Baelde
<[email protected]> wrote:
> Hi Andre,
> We just need to break it down to pieces of the right size
> to keep things readable / thinkable.
Regardless which script I will use, the total line count will
approach 2k anyway (I need to list the sources and ID3 tag
function for each Show block).
>
> What really helps is that one show only plays once over one liquidsoap
> execution, because you launch one liquidsoap per day, loaded with a
> description of each show, right?
Correct!
>
> In a first time, let's forget about time slots. It sounds like a show
> could be something of the form:
> sequence(opener, playlist.once(files_list), closer, filler)
>
> Here opener and closer produce only one track; they could be
> single(..) sources or could be wrapped in a once(..) operator.
I have used single() in my script to make the source infallible.
>
> With that definition the closing jingle won't be played if the
> playlist is too long. If the closer is played too early, the filler
> comes in.
>
This would be great, but unfortunately, there are some Show blocks
where this would not work (see BTG in code below). I have already
defined (in an external PHP code) the length of the 'End' filler.
Calling that file, determines what is in the playlist, and thus I
have pre-computed duration to Show slot end.
I needed finer control (hence the PHP script) that what you have
proposed here.
> The global structure of the script should be something like:
> SHOW1 = ...
> SHOW2 = ...
> ...
> radio = switch(track_sensitive=false,[ ({SLOT1},SHOW1),
> ({SLOT2},SHOW2)... ])
> radio = mksafe(radio) # or fallback with a failsafe jingle
> output1(radio)
> output2(radio)
> ...
>
> I've put a track insensitive switch so that a show starts exactly when
> needed. It will interrupt the previous show (during a normal track, a
> closer, or the filler); a transition can be added to make that smooth.
>
> How does that differ from what you have, and do you see any problem
> with that approach?
The major difference between the two approaches:
1. As mentioned above, I need finer control over the end filler.
2. "...In a first time, let's forget about time slots...":
that's the core of my problem. I need that time slot switch to work.
The rest of the code works fine - our approaches are almost identical.
I need to know whether my 'Switch Schedule' code will work as expected.
I'm not sure whether using 'track_insensitive' in this switch would be
needed or appropriate. From what I read, the final item in a sequence will
always play all tracks. That's what I need.
However, I am presuming that, when the time slot switch kicks in, it will
end
the playing of that final 'End' filler track (even if not completed - I've
purposefully made that track to go beyond 'Show slot end'), and move
immediately to the next Show block. If it doesn't, I'm in trouble :)
Am I correct?
A chunk of my revised liq script:
(I'm hoping that the 'icmp3 = mksafe(switch())' statement in the 'Switch
Schedule' will work as expected.
****
# === Load MP3 Section ===
# === ID TO APPLY to SWITCH SCHEDULE ===
# === SSTOL ===
a = single("/usr/local/www/rcr/mp3/announce/SOD.mp3")
b =
single("/usr/local/www/rcr/mp3/announce/opener/opener-sstol.mp3")
c = playlist.safe(mode="normal",
"/usr/local/www/rcr/radio/current/mp3/today-sstol-mp3-32.pls")
d = single("/usr/local/www/rcr/mp3/announce/CLOSER.mp3")
e = playlist.safe(mode="normal",
"/usr/local/www/rcr/radio/current/mp3/sstol-mp3-end-32.pls")
sstol = sequence([a,b,c,d,e])
(... fill_in function here ....)
icmp3 = fill_in(sstol)
<... snip ...>
# === BTG ===
a = playlist.safe(mode="normal",
"/usr/local/www/rcr/radio/current/mp3/today-btg-mp3-32.pls")
b =
single("/usr/local/www/rcr/radio/current/mp3/btg/today/btg-mp3-end-32.pls")
btg = sequence([a,b])
(... fill_in function here ....)
icmp3 = fill_in(btg)
# === SWITCH SCHEDULE ===
icmp3 = mksafe(switch(
track_sensitive=true,
[
({09h00-09h30}, sstol),
({09h30-10h00}, mfts),
({10h30-11h00}, ogp),
({10h30-11h00}, coc),
({11h00-11h40}, csr),
({11h40-12h00}, cosm),
({12h00-13h00}, yap),
({13h00-13h30}, btg),
({13h30-14h00}, cfc),
({14h00-15h00}, mh),
({15h00-15h10}, codm),
({15h10-15h20}, hsip),
({15h20-16h00}, csoc),
({16h00-17h30}, sp)
]
))
output.icecast.mp3(,icmp3)
****
>
> Cheers,
Thanks,
Andre
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