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alevtx - Online in the Cloud

Run alevtx in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command alevtx that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


alevt - X11 Teletext browser

SYNOPSIS


alevt [options]

DESCRIPTION


alevt is an X11 program for browsing and searching Teletext pages received by a compatible
decoder (at the moment, bttv).

OPTIONS


A summary of command line options is included below. The X11 user interface is described
in the built-in manual.

-display display
Where to display the windows. Default: $DISPLAY.

-geometry geometry
Specifies the size and position of the windows. Default: 41x25.

-vbi device
Use the given device name. Default: /dev/vbi, /dev/vbi0, /dev/video0,
/dev/dvb/adapter0/demux0 tried in this order.

-finetune -4..4|auto
Try some fine tuning if you have a lot of decoding errors (these lightning symbols).
This allows fine tuning of the decoder circuit. The pre finetune behaviour was
-finetune 0. Default: 1.

[-parent] ppp[.ss]
Open a new window with the page number given by ppp and an optional subpage index
given by ss.

The -parent keyword is just for completeness and not normally used. The page number
alone is sufficient. Default: 900.

-child ppp[.ss]
Open a new child window with the page number given by ppp and an optional subpage
index given by ss. About the concept of parent and child windows see the built-in
manual.

-erc/-noerc
Enables/disables the error reduction code which substitutes errors on a page by data
from a previously received one. Enabled by default.

-bell/-nobell
Enables/disables the error bell. Normally enabled.

-charset latin-1|latin-2|koi8-r|iso8859-7
Selects the character set to use. Characters not present in the selected set are
replaced by similar looking symbols. (default: latin-1)

-progname name
Specifies the program name if using the DVB interface.

-pid pid
Specifies the teletext PID if using the DVB interface.

--help
Show summary of options.

--version
Show version of program.

The order of options is important! Each page number opens a new window with the
previously given geometry, device, and display. For example, to open two windows on the
local display and one on display foo:0 you would start it with:

alevt 100 300 -display foo:0 100

Or, one window from /dev/vbi0 and one from /dev/vbi1 (untested *g*):

alevt -vbi /dev/vbi0 100 -vbi /dev/vbi1 100

The -child options requires a parent window. So, it must be preceded by a parent or
another child window.

When saving pages alevt asks for a format string. Look at alevt-cap(1). The chapter
Format Specifiers gives an explanation.

alevt has no support to set or change the TV channel. This should be done with another
(not supplied) program like xawtv or set-tv from the xawtv package. Maybe in the future
there will be a more sophisticated method in bttv to switch channels etc with a dedicated
tuner application. But, at the moment, you have to live with it...

The -progname or -pid option specifies the program or teletext PID if using the DVB
interface.

If neither of these two options is used, alevt outputs informations about the currently
accessible streams and uses the first of these PIDs as default. This output contains the
PIDs and names that can be used as an input for the -progname or -pid option in the
context of the currently chosen TV channel.

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