SDI II Intel® FPGA IP User Guide

ID 683133
Date 4/03/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

5.4.6.1. RGB Pixel Packing

The Intel FPGA Streaming Video Protocol specifies a packing scheme for RGB pixels. The least significant symbol of an RGB pixel must be blue.

The following figure illustrates the 12 bits RGB video packet transported over AXI4-Stream Video interface configured at Bits per color sample parameter set to 12 bits. In this example, each pixel (36 bits) does not perfectly fill a given number of bytes, hence additional 4 undefined bits are padded at the most significant bits of each pixel.

Figure 34. 12 Bits RGB Video Packet When Parameter Bits Per Color Sample = 12
The following figure illustrates the 10 bits RGB video packet transported over AXI4-Stream Video interface configured at Bits per color sample parameter set to 12 bits. The active bits per color sample is less than the compile time parameter, hence the 2 least significant bits for each color sample are padded with zero.
Figure 35. 10 Bits RGB Video Packet When Parameter Bits Per Color Sample = 12

The following figure illustrates the 10 bits RGB video packet transported over AXI4-Stream Video interface configured at Bits per color sample parameter set to 10 bits. Each pixel (30 bits) does not perfectly fill a given number of bytes, consequently, additional 2 undefined bits are padded at the most significant bits of each pixel.

Figure 36. 10 Bits RGB Video Packet When Parameter Bits Per Color Sample = 10