NAME¶
zapping - a Gnome TV and Teletext viewer
SYNOPSIS¶
zapping [-b, --bpp NUMBER]
[-c, --command STRING] [--console-errors]
[--cpu-features FEATURES] [-d, --debug]
[--device FILENAME] [--dword-align]
[-n, --tunerless-norm STRING]
[--no-overlay, --remote] [--no-plugins] [--no-vbi] [--no-xv-image]
[--no-xv-video] [-v, --no-xv] [--xv-image-port NUMBER]
[--xv-port NUMBER, --xv-video-port NUMBER]
[-y, --yuv-format STRING] [-z, --no-zsfb]
DESCRIPTION¶
Zapping is a program to watch TV on a computer, within the Gnome
environment. You can take screenshots and record video and audio. Zapping
has a Teletext viewer built in and supports Closed Caption and Teletext
subtitles. For more information open the Gnome help and choose Applications
-> Multimedia -> Zapping. This manual page refers to zapping
version 0.10.
OPTIONS¶
-b, --bpp NUMBER
Color depth of the X display. In TrueColor mode (24 or 32
bits per pixel) you might get a very distorted image that spreads all around
the desktop. This usually means Zapping could not correctly determine the
color depth, which can be given here.
-c, --command COMMAND
Execute the given command and exit. This was intended to
create a sort of batch mode, you may want to use
zapping_remote(1)
instead. Only one command is implemented. The
set_channel command
allows one to change the channel by giving the channel name or RF channel
number, for example:
zapping -c "set_channel BBC"
--console-errors
Redirect the error messages to the console, useful for
bug reports.
--cpu-features FEATURES
Override the CPU detection for tests. Possible features
are: none, mmx, 3dnow, sse, sse2, sse3, altivec. When your CPU does not
support the given features Zapping may crash.
-d, --debug
Print debug messages on standard output. You should
include this information when submitting a bug report, as it can help to trace
the problem.
--device FILENAME
Kernel video device to use, usually /dev/video. You can
specify emulator for tests.
--dword-align
Forces doubleword alignment of the video in overlay mode.
Can help when the image is distorted at certain sizes but looks fine at
others.
-n, --tunerless-norm STRING
This option has no function but is recognized for
compatibility with earlier versions of Zapping. It determined the video
standard to be used when your TV card has no tuner, one of NTSC, PAL or
SECAM.
--no-overlay, --remote
Do not overlay video. The --remote option refers
to the X display. Overlay is only possible if the graphics card and TV card
are plugged into the same computer. Capture mode is possible on a remote
display (on another computer or in a nested display) but requires a high
network bandwidth.
--no-plugins
Do not use any plugins, usually for testing
purposes.
--no-vbi
Do not capture and decode VBI data, i.e. Teletext,
Subtitles, Closed Caption and station names. This option is intended for tests
and applies only to the current session. To override it or disable VBI support
permanently see the Devices -> VBI section in the Zapping
preferences.
--no-xv-video
Do not use the XVideo extension for video overlay.
--no-xv-image
Do not use the XVideo extension for hardware image
scaling.
-v, --no-xv
Do not use the XVideo extension for video overlay or
hardware image scaling.
--xv-image-port NUMBER
Number of the XVideo port to use for hardware image
scaling. Zapping lists the available ports with the -d option.
--xv-port NUMBER, --xv-video-port
NUMBER
Number of the XVideo port (similar to a device) to use
for video overlay. Zapping lists the available ports with the -d
option.
-y, --yuv-format STRING
This option has no function but is recognized for
compatibility with earlier versions of Zapping. It determined the pixel format
in capture mode when XVideo hardware image scaling was available, either YUYV
or YVU420.
-z, --no-zsfb
This option has no function but is recognized for
compatibility with earlier versions of Zapping. It used to prevent the
execution of zapping_setup_fb(1) on startup. Now Zapping calls the
helper application only if necessary.
SEE ALSO¶
zapping_remote(1), zapping_setup_fb(1)
AUTHORS¶
Zapping was written by Iñaki García Etxebarria,
Michael H. Schimek (mschimek@users.sourceforge.net) and many
contributors.
This manual page was written by Michael H. Schimek based on work
by Christian Marillat.
