1zvbi-chains(1)                 VBI proxy wrapper                zvbi-chains(1)
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NAME

6       zvbi-chains - VBI proxy wrapper
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SYNOPSIS

9       zvbi-chains [ options ]
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DESCRIPTION

12       zvbi-chains is a small wrapper which executes the VBI application given
13       on the command line while overloading several C library calls (such  as
14       open(2)  and  read(2))  so that the application can be forced to access
15       VBI devices via the VBI proxy instead of device files directly.
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17       LD_PRELOAD is used to intercept C library calls and call  functions  in
18       the  libzvbi-chain shared library instead. Parameters given on the com‐
19       mand line (e.g. device path) are passed to  the  library  by  means  of
20       environment variables.
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OPTIONS

23       -dev path
24              Path of a VBI device from which to read data.
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26       -debug level
27              Enables  debug  output: 0 = off (default); 1 = warnings, 2 = all
28              messages.
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30       -help  Print a short description of all command line options.
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SEE ALSO

34       zvbid(1), v4l-conf(8)
35       http://zapping.sourceforge.net/  (homepage)
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AUTHOR

38       Tom Zoerner (tomzo AT users.sourceforge.net)
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41       Copyright (C) 2003, 2004 Tom Zoerner
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43       This program is free software; you can redistribute it and/or modify it
44       under  the  terms of the GNU General Public License as published by the
45       Free Software Foundation; either version 2 of the License, or (at  your
46       option) any later version.
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48       This  program  is  distributed  in the hope that it will be useful, but
49       WITHOUT ANY  WARRANTY;  without  even  the  implied  warranty  of  MER‐
50       CHANTABILITY  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
51       Public License for more details.
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53       You should have received a copy of the GNU General Public License along
54       with this program; if not, write to the Free Software Foundation, Inc.,
55       675 Mass Ave, Cambridge, MA 02139, USA.
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59                                                                zvbi-chains(1)
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