User guide

Viz Engine Administrator’s Guide

5.23 Video Board

This section is used to configure video input, output and clip playback related settings.

• Clip Data Directory: Sets the clip directory (default directory is D:\ drive). Clips

that are transferred from Viz One, use V:\ drive.

Note: The directory has to match the directory set when installing the Mediaftp

service for video transfer from Viz One.

• Loopthrough Delay (EE): Sets delay for live video input in DVE mode

(Targa board only). This setting applies for all input channels. For Matrox, see

(Matrox0.VideoIn1.VideoDelayDVE) ... Configuration File.

• Videoout Ringbuffer: Sets the render buffer for video output. Helps to prevent

frame drops on the video output during execution of commands or loading of

objects. When enabled the engine will render a number of graphics frames in

advance and provide it to the video hardware. The number of frames rendered

forwardly is defined by the Ringbuffer Size. Large buffer sizes will delay the output

and increase the input to output delay for video textures.

• Ringbuffer size: Sets the size of the Ringbuffer in frames.

• Format Codec 1: Enables the codec matching the codec (Targa board only).

Alternatives are MPEG and DV. This only applies to video clips.

• Format Codec 2: Enables the codec matching the codec (Targa board only).

Alternatives are MPEG and DV. This only applies to video clips.

• Viz Link: Enables clip transfer from the Viz One. If enabled this option has the

following effects:

• In the VGA version, setting the clip takes immediate effect instead of the

command travelling through the ring buffer.

• In the VGA version a clip channel set to DVE will play the clip in texture mode.

• Activates the asynchronous Command feedback when setting a clip. The first

answer in this case is a ANSWER DELAYED message to the client and after that,

either an error message or a success message is sent back to the client.

• A clip which is currently playing in the active player will not be loaded back to

back.

• DVS Ring Buffer: To have a separate ring buffer setting for DVS (especially for

combinations with Matrox DSXLE2), set this to ON (visible when DVS card installed).

• Watch Dog Mode: The following options are available:

• First Geom Load: Video Out is activated when the first geometry is loaded.

• At Startup: Video Out is activated at start up.