dov4l(1) [debian man page]

DOV4L(1)						      General Commands Manual							  DOV4L(1)

NAME

       dov4l - set parameters on a video4linux device

SYNOPSIS

       dov4l [options]

       options: [-d device] [-f frequency] [-t tuner] [-i inputchannel] [-m mode]

DESCRIPTION

       The program dov4l lets you set parameters on a video4linux-device.

OPTIONS

       -q     Query capabilities and settings of your video4linux device.

       -h     Usage

       -d device
	      Select device. Default is /dev/video0

       -f frequency
	      Set frequency (in Hz!).

       -t tuner
	      Select tuner. Most of the time the default (0) suffices.

       -i inputchannel
	      Select input channel. TV cards, for example, sometimes have a tuner and a composite video input-channel. With this parameter you can
	      select one. To get a list of input channels, run dov4l with the -q parameter.

       -m mode
	      Select a mode. Mode can be: PAL, NTSC, SECAM or AUTO.

       -b brightness
	      Set brightness.

       -u hue Set hue.

       -c color
	      Set color.

       -n contrast
	      Set contrast.

       -w whiteness
	      Set whiteness.

       -p palette
	      Set palette.

       -s width,height
	      Set the width/height of the image, separated with a ','. Warning: no spaces around the ','!

SEE ALSO

       http://www.vanheusden.com/dov4l/

NOTES

       This page describes dov4l as found in the dov4l-0.5 package; other versions may differ slightly.  Mail corrections, bugs and  additions	to
       folkert@vanheusden.com

dov4l								      2003-05								  DOV4L(1)

VIDCAT(1)							   Version 0.7.1							 VIDCAT(1)

NAME

       vidcat - capture a frame from a video4linux device

SYNOPSIS

       vidcat [-h?blgV] [-d <device>] [-f jpeg|ppm|png] [-i tv|comp1|com1|s-video] [-n pal|ntsc|secam] [-q <1..100>] [-s WIDTHxHEIGHT] [-o <file>]

DESCRIPTION

       vidcat  captures  a frame from a video4linux device and writes the result to the standard output device. With the following options you can
       define output format, size etc..

OPTIONS

       -d device
	      Use an alternate v4l device, '/dev/video' is the default device.

       -b     This applies only to PPM output. With this option the PPM ouput is written in binary mode.

       -f ppm|jpeg|png|yuv4mpeg
	      Define the file format to use for the output stream. The default is "jpeg".

       -g     Use greyscale instead of RGB24 for the output data.

       -i tv|comp1|comp2|s-video
	      Set the input channel to use. The default value is none, which means the preset of the device is used.

       -l     Loops until CTRL+C is pressed. This is the default for the YUV4MPEG output.

       -n pal|ntsc|secam
	      Select the input norm for the grabbing device. The default value is none.

       -o file
	      Use the named file for output instead of standard out.

       -p c|g|y|Y
	      Set the palette to use: c = RGB24, g=GREY, y=YUV420P, Y=YUV422P.

       -q 1..100
	      Set the quality for JPEG output. The value could be a number between 1 and 100. The default value is 80.

       -s WIDTHxHEIGHT
	      Define the size of the output frame in pixels. The default setting is 320x240.

       -V     Show version number and exit.

AUTHOR

       Rasca
       http://home.pages.de/~rasca/
       VIDCAT is published under the GNU General Public License

GNU
								     Oct 2001								 VIDCAT(1)