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<?xml version="1.0"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
<!ENTITY app "<application>Zapping</application>">
<!ENTITY cmd "<command>zapping</command>">
<!ENTITY version "0.10">
]>
<refentry id="zapping">
<refmeta>
<refentrytitle>zapping</refentrytitle>
<manvolnum>1</manvolnum>
</refmeta>
<refnamediv>
<refname>zapping</refname>
<refpurpose>a Gnome TV and Teletext viewer</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>zapping</command>
<arg>-b, --bpp <replaceable>NUMBER</replaceable></arg>
<arg>-c, --command <replaceable>STRING</replaceable></arg>
<arg>--console-errors</arg>
<arg>--cpu-features <replaceable>FEATURES</replaceable></arg>
<arg>-d, --debug</arg>
<arg>--device <replaceable>FILENAME</replaceable></arg>
<arg>--dword-align</arg>
<arg>-n, --tunerless-norm <replaceable>STRING</replaceable></arg>
<arg>--no-overlay, --remote</arg>
<arg>--no-plugins</arg>
<arg>--no-vbi</arg>
<arg>--no-xv-image</arg>
<arg>--no-xv-video</arg>
<arg>-v, --no-xv</arg>
<arg>--xv-image-port <replaceable>NUMBER</replaceable></arg>
<arg>--xv-port <replaceable>NUMBER</replaceable>,
--xv-video-port <replaceable>NUMBER</replaceable></arg>
<arg>-y, --yuv-format <replaceable>STRING</replaceable></arg>
<arg>-z, --no-zsfb</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1 id="description">
<title>Description</title>
<para>&app; is a program to watch TV on a computer, within the
Gnome environment. You can take screenshots and record video and
audio. &app; 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 &cmd; version &version;.</para>
</refsect1>
<refsect1 id="options">
<title>Options</title>
<variablelist>
<varlistentry>
<term><option>-b, --bpp
<replaceable>NUMBER</replaceable></option></term>
<listitem>
<para>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 &app;
could not correctly determine the color depth, which can be
given here.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-c, --command
<replaceable>COMMAND</replaceable></option></term>
<listitem>
<para>Execute the given command and exit. This was intended
to create a sort of batch mode, you may want to use <citerefentry>
<refentrytitle>zapping_remote</refentrytitle>
<manvolnum>1</manvolnum>
</citerefentry> instead. Only one command is
implemented. The <option>set_channel</option> command allows
to change the channel by giving the channel name or RF
channel number, for example:</para>
<programlisting>
zapping -c "set_channel BBC"
</programlisting>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--console-errors</option></term>
<listitem>
<para>Redirect the error messages to the console, useful for
bug reports.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--cpu-features</option>
<replaceable>FEATURES</replaceable></term>
<listitem>
<para>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
&app; may crash.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-d, --debug</option></term>
<listitem>
<para>Print debug messages on standard output. You should
include this information when submitting a bug report, as it
can help to trace the problem.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--device
<replaceable>FILENAME</replaceable></option></term>
<listitem>
<para>Kernel video device to use, usually
<filename>/dev/video</filename>. You can specify
<filename>emulator</filename> for tests.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--dword-align</option></term>
<listitem>
<para>Forces doubleword alignment of the video in overlay
mode. Can help when the image is distorted at certain sizes
but looks fine at others.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-n, --tunerless-norm
<replaceable>STRING</replaceable></option></term>
<listitem>
<para>This option has no function but is recognized for
compatibility with earlier versions of &app;. It determined
the video standard to be used when your TV card has no
tuner, one of NTSC, PAL or SECAM.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--no-overlay, --remote</option></term>
<listitem>
<para>Do not overlay video. The <option>--remote</option>
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.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--no-plugins</option></term>
<listitem>
<para>Do not use any plugins, usually for testing purposes.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--no-vbi</option></term>
<listitem>
<para>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 &app; preferences.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--no-xv-video</option></term>
<listitem>
<para>Do not use the XVideo extension for video overlay.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--no-xv-image</option></term>
<listitem>
<para>Do not use the XVideo extension for hardware image
scaling.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-v, --no-xv</option></term>
<listitem>
<para>Do not use the XVideo extension for video overlay or
hardware image scaling.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--xv-image-port
<replaceable>NUMBER</replaceable></option></term>
<listitem>
<para>Number of the XVideo port to use for hardware image
scaling. Zapping lists the available ports with the
<option>-d</option> option.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--xv-port <replaceable>NUMBER</replaceable>,
--xv-video-port <replaceable>NUMBER</replaceable></option></term>
<listitem>
<para>Number of the XVideo port (similar to a device) to use
for video overlay. Zapping lists the available ports with the
<option>-d</option> option.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-y, --yuv-format
<replaceable>STRING</replaceable></option></term>
<listitem>
<para>This option has no function but is recognized for
compatibility with earlier versions of &app;. It determined
the pixel format in capture mode when XVideo hardware image
scaling was available, either YUYV or YVU420.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-z, --no-zsfb</option></term>
<listitem>
<para>This option has no function but is recognized for
compatibility with earlier versions of &app;. It used to
prevent the execution of <citerefentry>
<refentrytitle>zapping_setup_fb</refentrytitle>
<manvolnum>1</manvolnum>
</citerefentry> on startup. Now &app; calls the helper
application only if necessary.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="see-also">
<title>See also</title>
<para><citerefentry>
<refentrytitle>zapping_remote</refentrytitle>
<manvolnum>1</manvolnum>
</citerefentry>, <citerefentry>
<refentrytitle>zapping_setup_fb</refentrytitle>
<manvolnum>1</manvolnum>
</citerefentry></para>
</refsect1>
<refsect1 id="authors">
<title>Authors</title>
<para>&app; was written by Iñaki García Etxebarria, Michael
H. Schimek (mschimek@users.sourceforge.net) and many
contributors.</para>
<para>This manual page was written by Michael H. Schimek based on
work by Christian Marillat.</para>
</refsect1>
<refsect1 id="contact">
<title>Contact</title>
<para>&app; homepage: http://zapping.sourceforge.net</para>
<para>Please report bugs with the &app; bug tracker
http://sourceforge.net/tracker/?group_id=2599 or mail us at
zapping-misc@lists.sourceforge.net</para>
</refsect1>
</refentry>
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