User guide

Viz Engine Administrator’s Guide

• Allow Chroma Clipping: Determines whether or not to clip over-saturated chroma

levels in the active portion of the output video signal. Default mode is Inactive.

• Digital Edge Sharpening Filter: Applies an edge sharpening filter to digital

output video. Default mode is Inactive. SD configurations only.

Group for key component of the video output.

• Watchdog Key Opaque: Specifies if the output key must be opaque or transparent

when the watchdog unit activates. Default mode is Inactive.

• Allow Super Black: Determines whether or not to clip an output video signal that

is under 7.5 IRE unit s. Default mode is Inactive.

• Allow Super White: Determines whether or not to clip an output video signal that

is over 100 IRE unit s. Default mode is Inactive.

• Allow Chroma Clipping: Determines whether or not to clip over-saturated chroma

levels in the active portion of the output video signal. Default mode is Inactive.

• Apply Offset: Applies an offset to the luminance values such that the inverted

result still falls within the 16-235 range. Default mode is Inactive.

• Downscale Luma: Compresses the luminance range of the output key signal from

0-255 to 16-235. Default mode is Active.

• Invert Luma: Inverts the luminance part of the output key signal (inverts the key).

Default mode is Inactive.

• Manager Size (frames): Sets the number of frames available in the on-board

memory for output. A too high value may cause memory problems on the Matrox

board. Default value is 3.

• Repeat Mode: Defines the way the output should be repeated if Viz Engine is

stalled and does not update the output. Default mode is Field. Available modes are:

• None: Does not repeat. Output goes black.

• Field: Repeats the last played field.

• Frame: Repeats the last played frame.

• 3G Level B: Activates Level B for 3G mode in 1080p 50/60/60M (default mode is

Level A).

Group for Vertical Blanking Interval (VBI) related settings.