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vidtomem(1)							   vidtomem(1)

NAME    [Toc]    [Back]

     vidtomem -	Video Library capture single frame tool

SYNOPSIS    [Toc]    [Back]

     vidtomem [-f <filename>] [-w] [-d]	[-c <count>] [-h] [-r [packing]	]
	   [-n <device>] [ -v <video-node> ] [-o <memory-node>]	[-I] [-t]
	   [-z n/d] [-s	wxh]

PARAMETERS    [Toc]    [Back]

     -f	<filename>
	  Name of output file to be created. '-00000.<ext>' will be appended
	  to the filename. If count is > 1 the subsequent filenames will be

     -w	  Don't	write frame to disk, simply capture and	exit.

     -d	  Display frame	in window on screen.

     -c	<count>
	  Capture <count> frames, up to	the limits of the hardware for burst

     -r	[packing]
	  Capture data in raw, device-dependent	packing.  When written to
	  disk,	the filename's suffix will indicate the	packing. The optional
	  packing parameter used with -r specifies the VL packing number to
	  use when capturing the image.	If -r is specified without a packing
	  argument, VL_PACKING_YVYU_422_8 (packing # 5)	is assumed.

     -h	  Display help message

     -n	<device>
	  Specifies the	VL device to use for capture.

     -v	<video-node>
	  Specifies the	video node number to use for capture.

     -o	<memory-node>
	  Specifies the	memory node number to use for capture.

     -I	  Print	node and path IDs for use with command line interface.

     -t	  Wait for external trigger before frame capture.

     -s	<w>x<h>
	  Set frame dimensions,	w is the width,	h is the height.

									Page 1

vidtomem(1)							   vidtomem(1)

     -z	<n>/<d>
	  Set frame zoom ratio,	n is the numerator, d is the denominator.

DESCRIPTION    [Toc]    [Back]

     The application, vidtomem , on hardware that supports the video to	memory
     path, captures and	writes to disk the image on the	current	video input.
     By	default, it selects the	current	input last selected by vcp or if vcp
     has not been used to change the default input, it uses node 0 of the
     video source 0, which is the analog input,	and writes its images to files
     of	the form <filename>-<N>.<ext> where N is replaced by the 5 digit
     sequence number of	the captured frame and ext is replaced by an
     abbreviation for the data format (packing type).  The default for
     filename is 'out'.

     If	-w is specified	vidtomem does not write	the captured frame to disk.

     If	-d is specified	vidtomem attempts to display the captured frame	in a
     window on the workstation screen using ipaste.

     If	-r is specified	vidtomem doesn't perform any translation of the	data
     upon capture, and writes the raw data to disk for the user.

     If	-I is specified	vidtomem prints	the node and path IDs on stdout. These
     are required when using the command line interface	tool, vlcmd , to get
     or	set controls on	the video hardware.

     If	-t is specified	vidtomem waits for an external trigger before
     capturing a frame or sequence of frames.

     If	-s is specified	vidtomem clips the frame size to width w and height h
     using the upper left corner of the	frame as the clip origin. The values
     of	w and h	must be	positive.  If either is	negative the default sizes are

     If	-z is specified	vidtomem zooms the frame(s) to a ratio of n/d within
     the range supported by the	hardware.

     The -v and	-o options may be used to specify the source and drain node
     numbers explicitely. For example:

	     vidtomem -v 1 -o 2

     This instructs vidtomem to	use video source node 1	and memory drain node
     2.	Note: all combinations of video	and memory nodes may not be possible.
     Consult the Owner's Guide or Programmer's Guide for a list	of node
     numbers for each device.

									Page 2

vidtomem(1)							   vidtomem(1)

SEE ALSO    [Toc]    [Back]

     memtovid(1), videopanel(1), vlinfo(1), ipaste(1), vlcmd(1)

BUGS    [Toc]    [Back]

     If	the -v option is used to specify a Galileo Video digital source	node
     (either 1 or 2) which does	not have an input video	signal connected
     vidtomem will hang	waiting	for a video frame.  If vidtomem	is killed the
     videod daemon will	be left	hanging.  To correct the problem become
     superuser and do a	killall	on the videod daemon.

									PPPPaaaaggggeeee 3333
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