xanalogtv(6) XScreenSaver manual xanalogtv(6)

NAME

xanalogtv - Simulate reception on an old analog TV set

SYNOPSIS

xanalogtv [--display host:display.screen] [--window] [--root]
[--window-id number][--install] [--visual visual] [--cycle] [--no-
cycle] [--fps]

DESCRIPTION

xanalogtv shows a simulation of an old TV set showing test patterns
and any other images you have provided. It reproduces a wide range of
TV reception bummage: snow, bloom, ghosting, and loss of vertical and
horizontal sync. It also simulates the TV warming up. It will cycle
through 12 channels, some with images you give it, and some with
color bars or nothing but static.

The images that it uses will be grabbed from the portion of the
screen underlying the window, or from the system's video input, or
from a random file on disk, as indicated by the grabDesktopImages,
grabVideoFrames, and chooseRandomImages options in the
~/.xscreensaver file; see xscreensaver-settings(1) for more details.
It looks best with a video input or your digital photo collection.

OPTIONS

xanalogtv accepts the following options:

--window
Draw on a newly-created window. This is the default.

--root Draw on the root window.

--window-id number
Draw on the specified window.

--install
Install a private colormap for the window.

--visual visual
Specify which visual to use. Legal values are the name of a
visual class, or the id number (decimal or hex) of a specific
visual.

--fps Display the current frame rate and CPU load.

ENVIRONMENT

DISPLAY to get the default host and display number.

XENVIRONMENT
to get the name of a resource file that overrides the global
resources stored in the RESOURCE_MANAGER property.

XSCREENSAVER_WINDOW
The window ID to use with --root.

X RESOURCES

Notable X resources supported include the following which correspond
to standard TV controls: analogTVTint, analogTVColor,
analogTVBrightness, and analogTVContrast. They range from 0 to 100,
except for tint which is an angle between -180 and +180.

SEE ALSO

X(1), xteevee(6), apple2(6), bsod(6), xscreensaver(1),
xscreensaver-settings(1), xscreensaver-getimage(6)

COPYRIGHT

Copyright (C) 2003 by Trevor Blackwell. Permission to use, copy,
modify, distribute, and sell this software and its documentation for
any purpose is hereby granted without fee, provided that the above
copyright notice appear in all copies and that both that copyright
notice and this permission notice appear in supporting documentation.
No representations are made about the suitability of this software
for any purpose. It is provided "as is" without express or implied
warranty.

AUTHOR

Trevor Blackwell <tlb@tlb.org>

X Version 11 6.09 (07-Jun-2024) xanalogtv(6)