On Sun, 16 Mar 2003, Rob MacNeill wrote:
> Hi Starkeeper and everyone else,
>
> I have been working on a standalone DVR using freevo as a school project. (The same
> project for which Kyle Weston wrote his Record Schedule Menu code). Anyways, I have
> been writing code to display current status on a vacuum fluorescent display. I am
> using a 2x20 IEE display connected directly to the parallel port (you can also use
> the serial port, but we're using that for LIRC, and besides this is easier). I am
> new to python, and could not figure out how to interface to the parallel port with
> it, so I wrote my code in C and compiled into a python module using SWIG. I also
> ended up having to add a bunch of extra code for mplayer for displaying track time.
> As of now, my code displays a welcome message on startup, name of the currently
> playing video file, current track time, movie status (eg play/pause/>>/<</stop),
> current television channel and a recording message. Also if you play a video file
> while recording, a different recording message will appear with the rest of the
> video display.
> I will send my code when I get a chance if anyone is interested. It is spread all
> over the place, mainly in /tv/mplayer.py, /video/mplayer.py and record_daemon.py as
> well as the MPlayer files mplayer.c and mencoder.c.
> One of the major issues I had was when two processes (eg current time and play
> status) try to write to the screen at the same time. To get around this, I set a
> flag bit in shared memory which each process must poll before it can write anything.
> As a result, mplayer will no longer run from the command line - freevo must be
> running, or else a segmentation fault will occur. That's fine for my purposes, but
> I imagine that would be a major issue for most people!
> (Sorry haven't written any code for audio!!)
Sounds like a great start. I hope this school of yours
has a lot more students that contribute to freevo ;-)
I´m out of town currently but I can`t wait to look at
this stuff once I get back.
l8r...
Thomas
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