dmplay - digital media file player utility
dmplay [options] [-p display_port] [-p audio] filename
dmplay plays back a movie file which contains a JPEG-compressed video
By default, dmplay shows the video output in a window on your monitor as
well as to video output devices connected to mvp (built-in on O2
systems), impact (Impact or Octane Video, as well as the Impact or Octane
Compression options), ev1 (Indy Video, Indigo2 Video, and Galileo Video,
for other systems). A hardware decompressor (ice for O2 systems, impact
for Impact and Octane Compression, cosmo for others) is used to decode
the image track by default.
dmplay can optionally be instructed to display the image track only in a
graphics window, or (on O2 systems) only to video. It can also
decompress the track using software JPEG decompression (to a graphics
window) if the hardware decompressor is not available.
The O2 version of dmplay can handle movies in either the old SGI format
or the new QuickTime format. Other versions may only be able to play back
movies in the SGI format.
With this flag, dmplay prints a detailed description of the command
line options. It is tailored to show only what are actually
available on your system for parameters that are system-dependent,
such as, the video device, the decompressor engine, etc.
If the verbose option is specified, information is printed about the
movie and the play back parameters. Multiple -v options may be
specified to increase the amount of information printed.
Specify video port: display the image track in a graphics window
only, or to video outputs connected to the video device, which must
be mvp for O2 systems, impact for Impact and Octane Video, and ev1
for others. The hardware decompression engine must be ice for O2
systems, impact for Impact and Octane Compression, and cosmo for
others. Software decompression engine, specified by sw, is
available on all systems.
Enable audio port: play back audio track if present in file. This is
Audio playback is supressed if video is not displayed in real-time,
such as when software decompression engine is used, or when graphics
display is chosen for systems using cosmo engine. O2 systems can
play synchronized audio with video as long as ice is used as the
decompression engine, regardless of whether graphics or video is
chosen for display.
-g no graphics display
For O2 systems only. This option supresses graphics window display.
If video is the display port (either specified or selected by
default), this option causes the display to be sent only to video
outputs. If graphics is the display port, this option supresses the
showing of the movie's video track entirely, resulted in an audioonly
-f force sample rate
Forces dmplay to change the audio hardware's sample rate regardless
of whether another application is running.
-E [auto | key]
If auto, dmplay closes the window and exits as soon as the playback
completes. If key, dmplay waits for user input (mouse click) after
playback. auto is the default.
-L [repeat | none or spin1 | spin2]
Loop mode: if not specified from the command-line, the loop mode
specified in the movie file header serves as the default. Swing-mode
looping is not supported. If spin1 then repeat last field at end of
playback. If spin2 then repeat last frame - 2 fields - at the end.
Zoom output to n/d. The zoom may be either greater or less than
one. Not all zoom factors are supported; dmplay will use whatever
value is closest to the one specified. The zoom factor may be
specified as a floating point value or a rational number, e.g. .25
is equivalent to 1/4.
SUPPORTED PLAYBACK MODES [Toc] [Back]
The following playback modes, among others, are supported.
Play back using default hardware decompression engine to a window and
video outputs, with synchronized audio playback if the movie contains an
Play back using an ev1 video window and Cosmo JPEG decompression, with
synchronized audio playback if the movie contains an audio track:
dmplay -p video,device=ev1,engine=cosmo file.mv
Play back using a graphics window and Cosmo JPEG decompression (audio
will not be played):
dmplay -p graphics,engine=cosmo file.mv
Play back on an O2 system using graphics window and hardware (ice) JPEG
decompression, with synchronized audio playback if the movie contains an
dmplay -p graphics,engine=ice file.mv
Play back using a graphics window and software JPEG decompression (audio
will not be played):
dmplay -p graphics,engine=sw file.mv
dmrecord(1), sfplay(1), dmconvert(1), movieplayer(1), soundplayer(1)
PPPPaaaaggggeeee 3333 [ Back ]