Video Display Interface

Simulate display of images to video screen on device

Since R2021a

• 

Libraries:
SoC Blockset / Peripherals

Description

The Video Display Interface block simulates the behavior of a video output device. This block receives image samples as messages from a connected Video Display block that simulates the video driver code connected to your algorithm.

Ports

Input

msg — SoC message data

vector

This port receives the image data as a message from the msg port of a connected Video Display block.

Data Types: SoCData

Output

data — Image data

3*height*width-element vector

The port outputs the unwrapped image matrix data as three heightwidth-element vectors where height and width are the dimensions of the image matrix defined by the Image Size parameter. The 3 is the multiplier for the RGB channels.

Dependencies

To enable this port, set the Output parameter to To output port.

Data Types: uint8

Parameters

Output — Output type

To terminator (default) | To output port

Specify if the block acts as a terminator, similar to the Terminator block, or produces data to an output port.

Image size — Image size

160x120 (default) | 320x240 | 640x480 | 800x600 | custom

Specify the height and width dimensions of the image emitted as a vector by the data port of this block. Specify custom to set custom image dimensions.

Image size ([width, height]) — Image size

[320, 240] (default) | two-element vector of positive integers

Specify custom height and width dimensions of the image matrix emitted by the data port of this block.

Dependencies

To enable this parameter, set the Image size parameter to custom.

Pixel format — Format of the pixel data

RGB (default) | YCbCr 4:2:2

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

Dependencies

To enable this parameter, set the Image size parameter to custom.

Sample time — Sample time in seconds

-1 (default) | positive scalar

Enter the sample time defining the rate at which to receive the message containing video data.

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. To generate and execute C code for your SoC models, Embedded Coder^® features are required. For more information on generating code for SoC designs, see Use SoC Builder to Generate SoC Design.

Embedded Coder does not generate code for this block. In the generated code,the V4L2 driver framework performs the video display on the device. The related Video Display block represents the V4L2 driver. For more information on the V4L2 driver framework, see Video4Linux.

Version History

Introduced in R2021a