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dmrecord(1)							   dmrecord(1)

NAME    [Toc]    [Back]

     dmrecord -	digital	media hard-disk	recording utility

SYNOPSIS    [Toc]    [Back]

     dmrecord [options]	[-p video_port|screen_port] [-p	audio_port ]
	      [-s | -a]	[-2] [-f file_options]	filename

DESCRIPTION    [Toc]    [Back]

     dmrecord records a	movie file which contains a JPEG-compressed video
     track and,	optionally, an audio track.

     dmrecord supports realtime	video recording	to disk	through	Impact
     Compression, Octane Compression, ev1 video	and Cosmo Compress. (Indy
     Video, Indigo2 Video, and Galileo Video are ev1 = 'Express	Video'
     devices.) On O2 systems, dmrecord uses the	built-in MVP ports and ICE
     compressor.  The recorded movie file contains JPEG-compressed image data.

     Audio is recorded as stereo or mono 16-bit	data, using the	current	audio
     input source and input sampling rate settings on the system Audio Control
     Panel, apanel(1).

     The O2 version of dmrecord	produces movies	in QuickTime format, though it
     can be instructed to use the old SGI format. Other	versions may use only
     the SGI format. The O2 version of dmplay(1) can handle movies in either
     format; other versions may	only be	able to	handle SGI format.

OPTIONS    [Toc]    [Back]

     -h	  help flag

	  dmrecord prints out a	detailed description of	command	line options
	  and usage examples. It is tailored to	show only what are actually
	  available on your system for parameters that are system-dependent,
	  such as the compression engine and the input video port names, etc.

     -v	  verbose flag

     -B	  [auto	| key]	 (key is default)

	  Begin	recording whenever ready, or wait until	user starts recording
	  session by pressing the <Enter> key.

     -t	  seconds

	  Specify number of seconds using a nonnegative	floating-point value.
	  If seconds is	not specified, record until user terminates recording
	  by sending SIGINT (<Ctrl C>) to the process.

     -C	  critical flag

	  Immediately abort recording and remove output	file if	a video	frame
	  is dropped. By default, dmrecord will	continue recording. After
	  recording is terminated, the program will post process the output

									Page 1

dmrecord(1)							   dmrecord(1)

	  file and replace each	dropped	frame by a synthesized frame. Each of
	  the two fields in the	synthesized frame is a duplicate of the	second
	  field	from the last valid frame preceding the	dropped	frame.

     -p	  video[,device=D][,port=N][,comp=jpeg][,engine=E][,quality=Q]

	  Specify video	port. For O2 syetms, the input device must be mvp and
	  the compression engine must be ice. For Impact or Octane
	  Compression, the device must be impact and the compression engine
	  must be impact.  For other systems, the device must be ev1 and the
	  compression engine must be cosmo. Use	the -h option to find out the
	  input	ports available	on your	system.

	  Optionally, a	JPEG quality factor Q from 1..100 may be specified as
	  quality=Q, or	a bitrate target describing bits per second may	be
	  specified as brate=bits-per-sec.

	  If the Galileo 601 option is installed, use port=0 to	select the
	  analog port, port=1 for the port labeled IN 1	of the 601 breakout
	  box. Port IN 2 of the	601 breakout box is not	supported.

	  If neither video_port	nor screen_port	is specified, dmrecord takes
	  its video from current video input as	set by videopanel(1).

     -p	  screen,x=X,y=Y,width=W,height=H,timing=T

	  For O2 systems only.	Specify	screen port. The rectangular area of
	  the screen with (X,Y)	as its upper left-hand corner and with width W
	  and height H is used as the video input for the movie. The timing
	  must be either ntsc or pal. You must use xsetmon(1) to set the
	  monitor's timing to 60 Hz for	ntsc or	50 Hz for pal before you use
	  dmrecord with	screen capture.	 (xsetmon is available on the desktop
	  from the System/GraphicsBackEnd menu choice.)

     -p	  audio[,channels=C]

	  Enable audio port. Format is always 16-bit. channels=2 specifies
	  stereo (the default),	channels=1 specifies mono.

     -s	  SGI flag

	  For O2 systems only. This flag forces	the O2 version of dmrecord to
	  produce a movie using	the old	SGI format. Without this flag, a
	  QuickTime movie is produced, which is	not playable using versions of
	  dmplay(1) that only handles the old SGI format. O2 version of	dmplay
	  can play movies in either format.

     -a	  AVI flag

									Page 2

dmrecord(1)							   dmrecord(1)

	  For O2 systems only. This flag forces	the O2 version of dmrecord to
	  produce a movie using	the AVI	format.

     -2	  F2 domianant

	  For O2 systems only. Specify this flag if the	input video stream is
	  F2 dominant. F1 dominance is assumed without this flag.

     -f	  [title=TITLE]

	  title	sets the movie file title to the string	TITLE.

EXAMPLE    [Toc]    [Back]

     Record 30 seconds of interleaved stereo audio and JPEG video data to an
     SGI movie file:

     dmrecord -t 30 -p video -p	audio file.mv

     Use dmrecord -h to	see other examples.

SEE ALSO    [Toc]    [Back]

     dmplay(1),	videopanel(1), apanel(1)

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