Per memory layer, there is a memory mapped
AXI4 interface named m_axi_mm_video
i with i representing the
layer number minus 1. The memory mapped AXI4 interface runs on
the ap_clk clock domain. The signals follow the
specification as defined in the
Vivado Design Suite: AXI Reference
Guide (UG1037).
The following table shows the pixel formats in memory supported by the Video Mixer.
| Video Format | Description | Bits per Component | Bytes per Pixel |
|---|---|---|---|
| RGBX8 | packed RGB | 8 | 4 bytes per pixel |
| BGRX8 | packed BGR | 8 | 4 bytes per pixel |
| YUVX8 | packed YUV 4:4:4 | 8 | 4 bytes per pixel |
| YUYV8 | packed YUV 4:2:2 | 8 | 2 bytes per pixel |
| UYVY8 | packed YUV 4:2:2 | 8 | 2 bytes per pixel |
| RGBA8 | packed RGB with alpha | 8 | 4 bytes per pixel |
| BGRA8 | packed BGR with alpha | 8 | 4 bytes per pixel |
| YUVA8 | packed YUV 4:4:4 | 8 | 4 bytes per pixel |
| RGBX10 | packed RGB | 10 | 4 bytes per pixel |
| YUVX10 | packed YUV 4:4:4 | 10 | 4 bytes per pixel |
| RGB565 | packed RGB |
5 bits per R component 6 bits per G component 5 bits per B component |
2 bytes per pixel |
| BGR8 | packed BGR | 8 | 3 bytes per pixel |
| Y_UV8 | semi-planar YUV 4:2:2 | 8 | 1 byte per pixel per plane |
| Y_UV8_420 | semi-planar YUV 4:2:0 | 8 | 1 byte per pixel per plane |
| RGB8 | packed RGB | 8 | 3 bytes per pixel |
| YUV8 | packed YUV 4:4:4 | 8 | 3 bytes per pixel |
| Y_UV10 | semi-planar YUV 4:2:2 | 10 | 4 bytes per 3 pixels per plane |
| Y_UV10_420 | semi-planar YUV 4:2:0 | 10 | 4 bytes per 3 pixels per plane |
| Y8 | packed luma only | 8 | 1 byte per pixel |
| Y10 | packed luma only | 10 | 4 bytes per 3 pixels |
| Y_U_V8 | planar YUV 4:4:4 | 8 | 1 byte per pixel per plane |
| Y_U_V10 | planar YUV 4:4:4 | 10 | 4 bytes per 3 pixels per plane |
| Y_U_V12 | planar YUV 4:4:4 | 12 | 3 bytes per 2 pixels per plane |
The following tables explain the expected pixel mappings in memory for each of the mentioned listed formats.