Houdini 20.5 MPlay viewer

MPlay command line options

On this page

Use mplay --help to display the list of options.

Profiles

  • -default

  • -tools

  • -render

  • -flipbook

  • -viewer

  • -full

  • -minimal

Image options

-g

Group the command line images into separate sequences, based on base name and extension.

-u

Leave the images in the command line unsorted (in the order they appear).

-Z ‹pad

Load only images that are padded to ‹pad› digits (or 0 for non-padded images only).

-D

Load fractional frames: assume . is a decimal if it appears in filenames to the left of the frame number.

-n

Disable negative frames: assume - is a separator, not a negative symbol, when it appears in filenames to the left of the frame number.

-z ‹level

Load images zoomed to a certain percentage, where ‹level› is 12, 25, 33, 50, 66, 75 or 100.

-v

Flip all images vertically.

-B ‹file

Set the background image(s). This will automatically enable transparency and background images.

-c

Load RGB color components only (no alpha).

-U

Use an unlimited amount of memory for images.

-m ‹N

Limit memory usage to ‹N› MB.

-w ‹width

Images loaded from STDIN are ‹width› pixels wide.

-h ‹height

Images loaded from STDIN are ‹height› pixels high.

-x ‹aspect

Sets the pixel aspect ratio.

-X ‹on|off

Enable or disable stretching to account for pixel ratio.

-S ‹n

Load ‹n› images from STDIN in RGBA format.

-O ‹startframe› ‹step

Load images from STDIN starting at ‹startframe› and skipping ‹step› frames.

-L ‹lutfile

Sets ‹lutfile› as the lookup table for Cineon images.

-l ‹w› ‹g› ‹iw

Sets the Cineon white point to ‹w›, the film gamma to ‹g› and the image white point ‹iw›.

-N

Leave Cineon files in their natural 10 bit log space.

-d ‹lutfile

Set the display LUT to ‹lutfile›.

-i ‹lutfile

Set the inspect LUT to ‹lutfile›.

-8

Always load images at 8-bit depth.

-G ‹gamma

Sets the display gamma. For example, -G 2.2.

-j ‹x1› ‹y1› ‹x2› ‹y2

Select a sub-region of the image to load, using fractional values between 0 and 1. For example, -j 0.25 0.25 0.75 0.75 to load the center region.

-J ‹x1› ‹y1› ‹x2› ‹y2

Select a sub-region of the image to load, using pixels. For example, -J 20 10 320 200.

-E ‹leftimg› ‹rightimg

Load two images as a stereo image pair.

-E ‹file1› ‹file2

Loads stereo image pairs. The first file specified should be the left image, and the second should be the right image.

Playback Options

-C

Pre-cache all images at startup.

-f ‹start› ‹end› ‹step

Sets the frame range (‹start› to ‹end›) and frame step.

-p

Startup in playback mode.

-P ‹mode

Sets the playback mode to 'loop', 'once' or 'zigzag'.

-r ‹fps

Set the frames per second for realtime play.

-R

Turn on realtime play without specifying a rate.

-M ‹mode

How to deal with missing frames, where ‹mode› is one of:

black

Show a black frame.

close

Show the closest available frame.

UI Options

-b ‹s|d

Startup in single (s) or double (d) buffer mode. Single buffer provides faster playback speed (default).

-F

Full image view mode; do not show any extra UI.

-H

Disable tool tips.

-K

Tell MPlay to listen on a socket for input images.

-k

Tell MPlay to listen on a socket for flipbook images. Images rendered to the ip device will be displayed.

-T

MPlay window stays on top (on Windows).

-V ‹x› ‹y

Sets the viewport layout to ‹x› columns by ‹y› rows.

-e ‹c|s|h|v|b|d› [‹val›]

Enables diffing with the mode set to:

c

Compare

s

Subtract

h

Split horizontal (split at ‹val›, default 0.5)

v

Split vertical (split at ‹val›, default 0.5)

b

Blend (by ‹val› amount, default 0.5)

d

Highlight differences (uses ‹val›, default 0)

Audio Options

-a ‹file

Load audio from ‹file›.

-A ‹volume

Sets the volume scale (default 1).

-o ‹fr› ‹sec

Aligns the animation frame ‹fr› to ‹sec› audio seconds.

-s on|off

Enable or disable the audio scrub sustain.

-W ‹rate

Sets the audio scrub rate.

MPlay viewer

Basics

Audio

Reference

Advanced