Re: xPLRioNet and CD Changers

["Rob West" <xplworld@xxxxxxxxxxxx>]

Hello Tony,

Sorry for the delayed response. I'm in France until Sunday, so I'm unlikely
to be able to catch up properly until then...

Your plan seems to cover all the stuff that I had thought of.

As regards multiple Rios trying to access multiple tracks from the same
changer, the best solution that I can think of is to "queue" the
second
track and connect the second Rio to the Shoutcast stream (if applicable) so
that it will receive the track when it does get played.

Not sure how relevant it is, but:

1. I believe my (Sony) CD changers support some kind of CDDB querying, as
the CDJ software was able to retrieve CDDB-style information automatically.
I'll try to find out how this works as this might save some time creating
.m3u files manually. Don't know if other changers support this sort of
thing
though

2. The Slink-e triggers an event about 5 seconds before the end of each
track (presumably this is part of the Sony control protocol) allowing CDJ
to
signal another changer to cue up the next track - assuming the next track
is
on another changer of course! I should be able to get my Slink-e <->
xPL
gateway to send a status message for this.

Rob.

----- Original Message -----
From: "Tony Tofts" <tony@xxxxxxx>
To: <ukha_xpl@xxxxxxx>
Sent: Sunday, July 25, 2004 9:11 AM
Subject: RE: [ukha_xpl] xPLRioNet and CD Changers


> Hi Rob,
>
> Thanks for the reply.
>
> My thoughts on how to achieve this are as follows:
>
> To add tracks to the database we would have a folder for cd changers,
with
a
> sub-folder for each changer. In the folder would be an m3u (or
similar)
file
> for each cd (the file name being 1.m3u ... 400.m3u)
>
> Each folder, along with the m3u files, would have a control file which
> specifies if the cd changer is attached for shoutcast or just control
(i.e.
> if the cd changer is connected to the soundcard for use as a
shoutcast, or
> just for control if not).
>
> E.g.
>
> <details artist="my cat" album="meow" />
>
> <control name="domino" shoutcast="Y"
url="http://192.168.1.50:9000";
/>
>
> So if shoutcast=Y then tracks appear as if mp3's, but player would be
> switched to shoutcast stream.
> And if shoutcast=N the xplrionet would add it as a 'changer device',
but
the
> tracks only appear against this device (as it is attached to an
amp/speakers
> and not available to the rio's etc as a shoutcast)
>
> Then if you select an item against a rio it sends out an xpl message
that
> can be captured by xplhal (or directly by an ir app) to change to that
disc.
> And the rio (etc) switched by xplrionet directly to the appropriate
> shoutcast stream (those shoutcast streams in the control file would
> automatically be added to the shoutcast list to join those in
streams.xml
by
> the scanning process to save duplication). For control devices, it
would
> just send out an xpl message e.g.
>
> Changer=domino
> Disc=34
> Track=3
>
> It also allows for having either a cd-changer per sound card, or
multiple
> cd-changers per soundcard.
>
> Artwork will also work in this scenario (e.g. 1.jpg ... 4.jpg).
>
> How does this all sound?
>
> One thing I hadn't thought about when thinking through the above is
how to
> handle two rio's asking for different tracks from the same changer....
Do
we
> just accept that the first rio will get changed by the 2nd request? Or
> should the 2nd rio be blocked?
>
> Thoughts?
>
> With regards to adding a shoutcast server to xplrionet (I'm using the
same
> method as you for my radio tuner) there are 2 parts to this.
>
> A) adding the actual shoutcast server broadcast part - this is easy,
no
> problem.
>
> B) capturing a soundcard input and converting to mp3 ready for
shoutcast -
> haven't a clue how to do this at the moment.
>
> Part A is probably worth adding anyway at somepoint, as it opens up
all
> sorts of (as yet) unsupported audio players to attach to xplrionet?
>
> Regards
> Tony
>
>
>
>
>
>
> xPL Links: http://www.xplproject.org.uk http://www.xplhal.com
http://www.xpl.myby.co.uk
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