1XVATTR(1)                        User Commands                       XVATTR(1)
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NAME

6       xvattr - Query/Set X11 XVideo Setting(s)
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SYNOPSIS

9       xvattr [options...]
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11       This program is used for getting and setting X11 Xv attributes such as
12       XV_BRIGHTNESS, XV_CONTRAST, XV_SATURATION, XV_HUE, XV_COLORKEY, ...
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14       For this program to work, you must have a version of X11 with the
15       XVideo extension and a graphics card that has Xv graphics acceleration.
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17       Note: On some cards XV_BRIGHTNESS and XV_CONTRAST are not listed among
18       the available attributes, but they can still be set/changed.
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20       OPTIONS
21
22       With no options, all parameters are displayed.
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24       Long options are handled by GNU getopts and follow those rules. In par‐
25       ticular, options that are specified with a double dash (--) rather than
26       a single dash (-), can be abbreviated as long as they are unique. Long
27       parameters that need a value specified may have the parameter and the
28       value separated with blank space or an optional equals sign (and no
29       intervening space).
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31       For example the following are all equivalent:
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33       xvattr -a XV_BRIGHTNESS xvattr --attribute XV_BRIGHTNESS xvattr --att
34       XV_BRIGHTNESS xvattr --att=XV_BRIGHTNESS
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36       Example:
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38         > xvattr
39         Adaptor: 0
40         Name: Matrox G-Series Backend Scaler
41          Port: 46
42           Name: XV_COLORKEY
43            Flags: XvGettable XvSettable
44            Min value: 0
45            Max value: 16777215
46            Current value: 66046
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48       {-a ⎪ --attribute} attribute name
49           Show value of attribute attribute name
50
51           Example:
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53             > xvattr -a XV_BRIGHTNESS
54             XV_BRIGHTNESS = 24
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58       {-a ⎪ --attribute} attribute name [-v ⎪ --value] value
59           Set attribute attribute name to value value.
60
61           Example:
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63             > xvattr -a XV_COLORKEY -v 10
64             XV_COLORKEY set to 10
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67
68       {-p ⎪ --port} port number
69           Get the attribute on the specified port.  If -p is not set, the
70           first available port is used.
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72           Example:
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74             > xvattr -p 66
75             Found Xv 2.2
76             Adaptor: 0
77             Name: SIS Video Overlay
78              Port: 66
79               Name: XV_COLORKEY
80                Flags: XvGettable XvSettable
81                Min value: 0
82                Max value: 16777215
83                Current value: 66046
84               Name: XV_BRIGHTNESS
85                Flags: XvGettable XvSettable
86                Min value: -128
87                Max value: 127
88                Current value: 0
89               Name: XV_CONTRAST
90                Flags: XvGettable XvSettable
91                Min value: 0
92                Max value: 255
93                Current value: 128
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AUTHOR

96       Björn Englund. Send bug reports to "d4bjorn@dtek.chalmers.se"
97       "rocky@panix.com" turned the README into this document.
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SEE ALSO

100       See also xvinfo and XvQueryAdaptors, XvSetPortAttribute, and XvGetPor‐
101       tAttribute.
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104         Copyright (C) 2001-2002 Björn Englund
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106         This program is free software; you can redistribute it and/or modify
107         it under the terms of the GNU General Public License as published by
108         the Free Software Foundation; either version 2 of the License, or
109         (at your option) any later version.
110
111         This program is distributed in the hope that it will be useful,
112         but WITHOUT ANY WARRANTY; without even the implied warranty of
113         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
114         GNU General Public License for more details.
115
116         You should have received a copy of the GNU General Public License
117         along with this program; if not, write to the Free Software
118         Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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122perl v5.8.8                       2006-08-29                         XVATTR(1)
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