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       With no options, all parameters are displayed.
22
23       Long options are handled by GNU getopts and follow those rules. In
24       particular, options that are specified with a double dash (--) rather
25       than a single dash (-), can be abbreviated as long as they are unique.
26       Long parameters that need a value specified may have the parameter and
27       the value separated with blank space or an optional equals sign (and no
28       intervening space).
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30       For example the following are all equivalent:
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32       xvattr -a XV_BRIGHTNESS xvattr --attribute XV_BRIGHTNESS xvattr --att
33       XV_BRIGHTNESS xvattr --att=XV_BRIGHTNESS
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35       Example:
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37         > xvattr
38         Adaptor: 0
39         Name: Matrox G-Series Backend Scaler
40          Port: 46
41           Name: XV_COLORKEY
42            Flags: XvGettable XvSettable
43            Min value: 0
44            Max value: 16777215
45            Current value: 66046
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47       {-a | --attribute} attribute name
48           Show value of attribute attribute name
49
50           Example:
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52             > xvattr -a XV_BRIGHTNESS
53             XV_BRIGHTNESS = 24
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56
57       {-a | --attribute} attribute name [-v | --value] value
58           Set attribute attribute name to value value.
59
60           Example:
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62             > xvattr -a XV_COLORKEY -v 10
63             XV_COLORKEY set to 10
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66
67       {-p | --port} port number
68           Get the attribute on the specified port.  If -p is not set, the
69           first available port is used.
70
71           Example:
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73             > xvattr -p 66
74             Found Xv 2.2
75             Adaptor: 0
76             Name: SIS Video Overlay
77              Port: 66
78               Name: XV_COLORKEY
79                Flags: XvGettable XvSettable
80                Min value: 0
81                Max value: 16777215
82                Current value: 66046
83               Name: XV_BRIGHTNESS
84                Flags: XvGettable XvSettable
85                Min value: -128
86                Max value: 127
87                Current value: 0
88               Name: XV_CONTRAST
89                Flags: XvGettable XvSettable
90                Min value: 0
91                Max value: 255
92                Current value: 128
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AUTHOR

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

99       See also xvinfo and XvQueryAdaptors, XvSetPortAttribute, and
100       XvGetPortAttribute.
101

103         Copyright (C) 2001-2002 Bjoern Englund
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105         This program is free software; you can redistribute it and/or modify
106         it under the terms of the GNU General Public License as published by
107         the Free Software Foundation; either version 2 of the License, or
108         (at your option) any later version.
109
110         This program is distributed in the hope that it will be useful,
111         but WITHOUT ANY WARRANTY; without even the implied warranty of
112         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
113         GNU General Public License for more details.
114
115         You should have received a copy of the GNU General Public License
116         along with this program; if not, write to the Free Software
117         Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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121perl v5.34.0                      2022-01-22                         XVATTR(1)
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