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diff --git a/util/alevt/README.OLD b/util/alevt/README.OLD new file mode 100644 index 0000000..4fb0e41 --- /dev/null +++ b/util/alevt/README.OLD @@ -0,0 +1,78 @@ +Hi,						Menden, 21 Sep 2000 + +    This program decodes and displays Videotext/Teletext from a +    /dev/vbi device. + + +COMPILE & INSTALL: + +    There's nothing to configure.  A simple 'make' is all. +    If you do not want png support remove the WITH_PNG in +    the Makefile.  Additionally, if you want a smaller font +    uncomment the "FONT=neep9" line. + +    It gives you 'alevt', 'alevt-date', and 'alevt-cap' and +    their man pages 'alevt.1x', 'alevt-date.1', and 'alevt-cap.1'. + +    You can install them where ever you want (i.e. /usr/local/bin). +    The programs are self-contained and require no other files. + +    NOTE: Be careful with 'make install'.  It's just for me :-) + + +PROBLEMS: + +    If you have a lot of decoding errors (lot of these lightning symbols) +    you may try pressing the 'f' and 'F' key.  This allows fine tuning of +    the decoder circuit.  There's also a -finetune command line option. +    This should only be necessary on really bad signals. + +    Maybe, I add autotuning later... + +    UPDATE: added autotuning.  It's the default.  If you add -debug the +    the actions of the pll are printed to stdout. + +    To get the old (pre finetune) behaviour start it with -finetune 0. + +    UPDATE: disabled autotuning *g*  sometimes it's too jumpy... + + +ALEVT-DATE: +    I added a little tool to set the system time from the videotext +    time.  The date is not interpreted (not even transmitted on some +    channels).  So it allows only adjustment of +/-12 hours. +    The default allowed adjustment is limited to +/-2 hours (use +    -delta to change).  Without the -set option it just display +    the date in the format of the date command.  Look at strftime(3) +    for possible control sequences you may use in the -format option. + + +HACKING: + +    If you want to play with the font size, you may resize it with +    xv (xv font1.xbm).  Just make sure, that its width is a multiple of +    32 and its height a multiple of 8.  A simple make will create +    a version of AleTV with the new font.  Warning: a make clean +    will erase font1.xbm.  The next make will recreate font.xbm from +    vtxt.bdf. + +    AleVT has a built in page editor.  If you start it with -editor +    you may press 'E' to invoke it.  For the usage you have to consult +    the sources.  (It's very crude!) + + +TODO: (no specific order) + +    - Error correction in alevt-cap +    - Better language support.  Internal 16-bit charset. +    - Separated graphics. +    - Rewrite the whole stuff.  A networked teletext daemon and clients +      that connect to it for display, capture, cgi, ... + + +NEWER VERSIONS: + +    The primary site of AleVT is http://goron.de/~froese + +Have fun, +Edgar Toernig (froese@gmx.de)  | 
