SDL Video Display

Display video using SDL

Add-On Required: This feature requires the Simulink Coder Support Package for Beaglebone Blue Hardware add-on.

• 

Libraries:
Simulink Coder Support Package for BeagleBone Blue Hardware / Video

Description

Display video data using the Simple Directmedia Layer (SDL) multimedia library. A Simulink^® model can contain only one SDL Video Display block.

This block takes planar video data in YCbCr 4:2:2 or RGB formats.

Ports

Input

R — Red component of pixel

matrix

Input port to specify red component of each pixel.

Dependencies

This port appears only when you select the RGB from Pixel format.

Data Types: uint8

G — Green component of pixel

matrix

Input port to specify green component of each pixel.

Dependencies

This port appears only when you select the RGB from Pixel format.

Data Types: uint8

B — Blue component of pixel

matrix

Input port to specify blue component of each pixel.

Dependencies

This port appears only when you select the RGB from Pixel format.

Data Types: uint8

Y — Luma component of pixel

matrix

Input port to specify the luma component of each pixel.

Dependencies

This port appears only when you select the YCbCr 4:2:2 from Pixel format.

Data Types: uint8

Cb — Blue difference component of pixel

matrix

Input port to specify the blue difference component of each pixel.

Dependencies

This port appears only when you select the YCbCr 4:2:2 from Pixel format.

Data Types: uint8

Cr — Red difference component of pixel

matrix

Input port to specify the red difference component of each pixel.

Dependencies

This port appears only when you select the YCbCr 4:2:2 from Pixel format.

Data Types: uint8

Parameters

Pixel format — Format of input video stream

RGB (default) | YCbCr 4:2:2

Specify the format of the input video stream: YCbCr 4:2:2 or RGB.

YCbCr 4:2:2 uses three channels to represent color image data for each pixel:

• Y is the luma component (essentially a grayscale signal).

• Cb is the blue-difference chroma component.

• Cr is the red-difference chroma component.

Cb and Cr are sampled at half the rate of Y. Therefore, if the dimensions of Y are M*N, the dimensions of Cb and Cr are each (M/2) by N.

RGB uses three 8-bit values to represent the red, green, and blue components of each pixel.

Version History

Introduced in R2018b