Is FreeBSD up to this job?
Roman Neuhauser
neuhauser at bellavista.cz
Fri Sep 19 10:36:29 PDT 2003
# judge at thend.org / 2003-09-17 12:33:30 -0600:
> My plan is to build a custom "jukebox looking" enclosure like everyone
> is used to seeing in bars, poolhalls, etc. In place of the CD changer
> I'd like to have a full PC (Thinking XP2800, 1GB RAM, 500Gb SATA RAID)
> built inside, connected to a CD changer that I can control. This way I
> can offer more then just CDs, but mp3s and videos as well. I'd like to
> pick up a nice vid card (Say an ATI Radeon 9xxx Pro series with S-Video
> out) and setup the S-Video side to stream videos/xmms mp3/cd
> visualizations to 6 TVs spread throughout the place.
> In place of the normal song selection screen you normally see, I'd like
> to place a 17 or 19" LCD that only display 4-8 CD covers & song lists
> at a time.
that whole thing is terribly overspec'd! do you know an mp3 player
with such a spec? I don't. Well, you mention playing video, so that
might change things a bit, still.
Anyway, if you want to present the user with CD covers, you'll
either need X or something capable of displaying graphics on the
console (Linux framebuffer, or svgalib, comes to mind). I'd go for
a console solution: less overhead, both computational and
administrative.
You'll need searchable storage for the CD/song titles and whatnot.
> *Tell FBSD to listen to a bill validator
> (http://www.videocan.com/bill_validator.html - currently waiting for
> info from them about interface) for credit inputs, and display it as an
> overlay on the screen (Let's say $1 buys 3 songs or 2 videos - display
> would show that)
Looks like you can plug that into an LPT port.
> *Once it's determined that there's credits in the machine have FBSD
> listen to a keypad (telephone pad style) for input in the style of
> XXXX, first 2 being album number, second 2 track number.
> *Queue up and keep track of songs to play. mp3s/CDs will launch a
> visualization studio to display the music vis to the TVs, or launch
> videos to play on TVs.
> *When there's no activity, it will enter a screensaver mode where it
> changes screens on monitor.
All in all, I think that you need is a daemon that will collect data
from the bill slot (parallel port?) and a keypad (serial port?),
mysqld (the librarized version of the server might be nice), and
something to play the music, mp3 / ogg (I'd go for Ogg Vorbis).
Something along a 300MHz Celeron/Duron w/ 128 MB RAM would IMO be
more than enough.
BTW, I was thinking about doing something similar, with one of those
micro-ATX boards, an LCD display (one of those found on CD players,
you know :), a programmable remote controller, and NetBSD. Would
make a nice "cd player". :) (I don't have the knowledge to do the
"electricity" stuff, but a friend of mine has done this kind of
things...)
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