50 lines
1.7 KiB
Groff
Executable File
50 lines
1.7 KiB
Groff
Executable File
.TH zvbi-chains 1 " " " " "VBI proxy wrapper"
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.SH NAME
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zvbi-chains - VBI proxy wrapper
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.SH SYNOPSIS
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.B zvbi-chains [ options ]
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.SH DESCRIPTION
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.B zvbi-chains
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is a small wrapper which executes the VBI application given on the command
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line while overloading several C library calls (such as open(2) and read(2))
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so that the application can be forced to access VBI devices via the VBI
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proxy instead of device files directly.
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LD_PRELOAD is used to intercept C library calls and call functions in the
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libzvbi-chain shared library instead. Parameters given on the command line
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(e.g. device path) are passed to the library by means of environment
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variables.
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.SH OPTIONS
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.TP
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\fB-dev\fP path
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Path of a VBI device from which to read data.
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.TP
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\fB-debug\fP level
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Enables debug output: 0 = off (default); 1 = warnings, 2 = all messages.
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.TP
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\fB-help\fP
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Print a short description of all command line options.
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.SH SEE ALSO
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zvbid(1), v4l-conf(8)
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.br
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http://zapping.sourceforge.net/ (homepage)
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.SH AUTHOR
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Tom Zoerner (tomzo AT users.sourceforge.net)
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.SH COPYRIGHT
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Copyright (C) 2003, 2004 Tom Zoerner
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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