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

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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

expand all

data — Image data
3heightwidth-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

expand all

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

Video Display Interface

Description

Ports

Input

msg — SoC message data
vector

Output

data — Image data
3heightwidth-element vector

Dependencies

Parameters

Output — Output type
`To terminator` (default) | `To output port`

Image size — Image size
`160x120` (default) | `320x240` | `640x480` | `800x600` | `custom`

Image size ([width, height]) — Image size
`[320, 240]` (default) | two-element vector of positive integers

Dependencies

Pixel format — Format of the pixel data
`RGB` (default) | `YCbCr 4:2:2`

Dependencies

Sample time — Sample time in seconds
`-1` (default) | positive scalar

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

See Also

External Websites

Video Display Interface

Description

Ports

Input

msg — SoC message data vector

Output

data — Image data 3*height*width-element vector

Dependencies

Parameters

Output — Output type To terminator (default) | To output port

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

Image size ([width, height]) — Image size [320, 240] (default) | two-element vector of positive integers

Dependencies

Pixel format — Format of the pixel data RGB (default) | YCbCr 4:2:2

Dependencies

Sample time — Sample time in seconds -1 (default) | positive scalar

Extended Capabilities

C/C++ Code Generation Generate C and C++ code using Simulink® Coder™.

Version History

See Also

External Websites

msg — SoC message data
vector

data — Image data
3heightwidth-element vector

Output — Output type
`To terminator` (default) | `To output port`

Image size — Image size
`160x120` (default) | `320x240` | `640x480` | `800x600` | `custom`

Image size ([width, height]) — Image size
`[320, 240]` (default) | two-element vector of positive integers

Pixel format — Format of the pixel data
`RGB` (default) | `YCbCr 4:2:2`

Sample time — Sample time in seconds
`-1` (default) | positive scalar

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.