NAME
xawtv-remote, v4lctl -- control video4linux devices
SYNOPSIS
xawtv-remote [ options ] command
v4lctl [ options ] command
DESCRIPTION
xawtv-remote and v4lctl can be
used to control a video4linux driven TV card. xawtv-remote
passes the command to a already running xawtv or motv instance
using X11 properties. v4lctl sets the parameters directly.
OPTIONS
xawtv-remote knows the following options:
- -h
- print a short help text
- -d dpy
- Set the X11 display
- -i id
- Set the Window ID. v4lctl understands these options:
- -h
- print a short help text
- -c device
- Set video4linux device.
- -v n
- Set debug level to n, where n = [0..2]
COMMANDS
Both tools basically use the same set of commands.
Some of them are useful for xawtv-remote only (fullscreen for
example).
- setstation [ <name> | <nr> | next | prev | back
]
- Set the TV station. This selects on of the TV stations which
are configured in the .xawtv config file. The argument can be the
station name or a number (the first one listed in the config file
is 0, ...). next/prev jumps to the next/previous station in the
list, back to the previously selected one.
- setchannel [ <name> | next | prev ]
- Tune in some channel.
- setfreqtab <table>
- Set the frequency table. See the menu in xawtv for a list of
valid choices.
- setnorm <norm>
- Set the TV norm (NTSC/PAL/SECAM).
- setinput [ <input> | next ]
- Set the video input (Television/Composite1/...)
- capture [ on | off | overlay | grabdisplay ]
- Set capture mode.
- volume mute on | off
- mute / unmute audio.
- volume <arg>
- color <arg>
- hue <arg>
- bright <arg>
- contrast <arg>
- Set the parameter to the specified value. <arg> can be
one of the following: A percent value ("70%" for example). Some
absolute value ("32768"), the valid range is hardware specific.
Relative values can be specified too by prefixing with "+=" or "-="
("+=10%" or "-=2000"). The keywords "inc" and "dec" are accepted to
and will increase and decrease the given value in small steps.
- setattr <name> <value>
- Set set the value of some attribute (color, contrast, ... can
be set this way too).
- show [ <name> ]
- Show the value current of some attribute.
- list
- List all available attributes with all properties (default
value, range, ...)
- snap [ jpeg | ppm ] [ full | win | widthxheight ]
<filename>
- Capture one image.
- webcam <filename>
- Capture one image. Does basically the same as "snap jpeg win
<filename>". Works also while avi recording is active. It
writes to a temporary file and renames it when done, so there is
never a invalid file.
- movie driver [ files | raw | avi | qt ]
- movie video [ ppm | pgm | jpeg | rgb | gray | 422 | 422p |
rgb15 | rgb24 | mjpeg | jpeg | raw | mjpa | png ]
- movie fps <frames per second>
- movie audio [ mono8 | mono16 | stereo ]
- movie rate <sample rate>
- movie fvideo <filename>
- movie faudio <filename>
- movie start
- movie stop
- control xawtv's movie recorder.
- fullscreen
- Toggle fullscreen mode.
- showtime
- Display time (same what the 'D' key does in xawtv).
- msg text
- Display text on the on-screen display (window title / upper
- Display text on the on-screen display (window title / upper
left corner in fullscreen mode).
- vtx line1 line2 [ ... ]
- Display subtitles. It pops up a small window at the bottom of
- Display subtitles. It pops up a small window at the bottom of
the screen. It is supported to be used as interface for displaying
subtitles (often on videotext page 150 in europe, thats why the
subtitles (often on videotext page 150 in europe, thats why the
name) by external programs.
Every command line argument is one line, zero lines removes the
window. You can colorize the text with the control sequence "ESC
foreground background". foreground/background has the range 0-7
(ansi term colors). Example: "\03347 hello world " is blue on
white. "\033" must be a real escape character, the string does'nt
work. With the bash you'll get it with ^V ESC. vtx does also
understand the ANSI tty escape sequences for color.
- quit
- quit xawtv
- keypad n
- enter digit 'n'. That's the two-digit channel selection,
entering two digits within 5 seconds switches to the selected
station. Useful for lirc.
- vdr command
- send "command" to vdr (via connect on
localhost:2001).
SEE ALSO
xawtv(1),
motv(1),
xawtvrc(5)
AUTHOR
Gerd Knorr <kraxel@bytesex.org>
COPYRIGHT
Copyright (C) 1997-2001 Gerd Knorr <kraxel@bytesex.org> This program
is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at
your option) any later version. This program is distributed in the
hope that it will be useful, but WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License for more details. You
should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 675 Mass Ave, Cambridge, MA 02139, USA.