Prerequisites

The feature adds support for custom non-broadcast resolution canvases targeting SMPTE ST 2110 driven video walls.

Note: Make sure your required output is covered by the appropriate license(s). For example, 4K, 8K, …

Supported Video Hardware

  • Matrox X.mio5 D25

  • Matrox DSX LE5 D25

  • Matrox DSX LE5 Q25

Known Limitations

  • The maximum resolution cannot exceed 8192 * 4320 pixels.

  • The single cutout flows need to be in broadcast resolution.

  • The minimum value for the horizontal position is 0 pixels. The maximum value is the canvas resolution width minus the output resolution width. The position must be a multiple of two pixels. Odd values are rounded to the lower even value.

  • The minimum value for the vertical position is 0 lines. The maximum value is the canvas resolution height minus the output resolution height.

  • The D25 cards can only handle a maximum of two UHD outputs.

Configuration

There are several settings necessary to enable the large canvas feature. Currently, those settings must be set directly in the configuration file.

  1. To write all related settings into the configuration file set VerboseConfig = 1, then start Viz Artist/Viz Engine once and shut it down again.

  2. Set Matrox.LargeCanvasMode = 1 to enable the feature.

  3. Set the output format to the desired resolution using the dimensions and frequency of your video wall (for example, output_system = USER_DEFINED 7680 1080 50.00 0 0).

  4. Depending on the number of outputs required to cover the entire canvas, configure each in the following way (example):
    MapToVizChannel must be set to 0 for all needed output flows. Set the video system to the broadcast resolution required and the position of the upper left corner of the cutout.

    • Matrox0.VideoOut1.MapToVizChannel = 0

    • Matrox0.VideoOut1.CanvasVideoSystem = 1080P_5000_SMPTE424M

    • Matrox0.VideoOut1.CanvasHorizontalPosition = 0

    • Matrox0.VideoOut1.CanvasVerticalPosition = 0