Video Display

R2026b

Display image samples from an algorithm to an output video device

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Video Display block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
SoC Blockset for AMD / SoC System Simulation / Processor I/O

Description

The Video Display block simulates behavior of the driver code that displays images to a video output, such as an LCD screen, on a hardware board. The output of this block must be connected to a Video Display Interface block that simulates a physical display screen on the hardware board. Place this block inside a task and connect to an algorithm to output an image each time the task executes. For more information on tasks, see Timer-Driven Task and Event-Driven Tasks.

Ports

Input

Color — Color component of image

height-by-width size matrix

Specify a height-by-width matrix, where the dimensions are the size of the image.

Dependencies

Use the Pixel format parameter to specify the color component format as either RGB or YCbCr 4:2:2.

Data Types: uint8

Output

msg — Data message to the video display interface

scalar

This port outputs data messages containing image data to a connected Video Display Interface block. For more information on messages, see Messages (Simulink).

Data Types: SoCData

Parameters

Pixel format — Format of pixel data

RGB (default) | YCbCr 4:2:2

Specify the input image data encoding as RGB or YCbCr 4:2:2 triplets.

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"prociolib/Video Display"

Example: add_block("prociolib/Video Display","myModel/myBlock",MakeNameUnique="on")

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using Simulink® Coder™.

• To automatically generate C code for your design, and execute on an SoC device, use the SoC Builder tool. For more information on generating code for SoC designs, see Use SoC Builder to Generate SoC Design.

• To generate and execute C code for your SoC models, this block requires Embedded Coder^® and SoC Blockset™ Support Package for AMD FPGA and SoC Devices.

• To use this block, you must set Hardware Board to Embedded Linux Board. You can then follow the instructions to configure the board.

When deployed to a supported hardware board, this block uses the V4L2 driver framework to capture images from video capture devices, such as a camera. To specify the video capture device and event triggers, use the Hardware Mapping tool. For more information on the V4L2 driver framework, see Video4Linux.

Version History

Introduced in R2021a