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) [Ref 1] . The Video Frame Buffer Read and Video Frame Buffer Write support the pixel formats in memory described in Table: Pixel Formats .
|
Video Format |
ID |
Description |
Bits per Component |
Bytes per Pixel |
|---|---|---|---|---|
|
RGBX8 |
10 |
packed RGB |
8 |
4 bytes per pixel |
|
BGRX8 |
27 |
packed BGR |
8 |
4 bytes per pixel |
|
YUVX8 |
11 |
packed YUV 4:4:4 |
8 |
4 bytes per pixel |
|
YUYV8 |
12 |
packed YUV 4:2:2 |
8 |
2 bytes per pixel |
|
UYVY8 |
28 |
packed YUV 4:2:2 |
8 |
2 bytes per pixel |
|
RGBA8 (1) |
13 |
packed RGB with alpha |
8 |
4 bytes per pixel |
|
BGRA8 (1) |
26 |
packed BGR with alpha |
8 |
4 bytes per pixel |
|
YUVA8 (1) |
14 |
packed YUV 4:4:4 with alpha |
8 |
4 bytes per pixel |
|
RGBX10 |
15 |
packed RGB |
10 |
4 bytes per pixel |
|
YUVX10 |
16 |
packed YUV 4:4:4 |
10 |
4 bytes per pixel |
|
Y_UV8 |
18 |
semi-planar YUV 4:2:2 |
8 |
1 byte per pixel per plane |
|
Y_UV8_420 |
19 |
semi-planar YUV 4:2:0 |
8 |
1 byte per pixel per plane |
|
RGB8 |
20 |
packed RGB |
8 |
3 bytes per pixel |
|
BGR8 |
29 |
packed BGR |
8 |
3 bytes per pixel |
|
YUV8 |
21 |
packed YUV 4:4:4 |
8 |
3 bytes per pixel |
|
Y_UV10 |
22 |
semi-planar YUV 4:2:2 |
10 |
4 bytes per 3 pixels per plane |
|
Y_UV10_420 |
23 |
semi-planar YUV 4:2:0 |
10 |
4 bytes per 3 pixels per plane |
|
Y8 |
24 |
packed luma only |
8 |
1 byte per pixel |
|
XY10 |
25 |
packed luma only |
10 |
4 bytes per 3 pixels |
|
RGBX12 |
30 |
packed RGB |
12 |
5 bytes per pixel |
|
YUVX12 |
31 |
packed YUV 4:4:4 |
12 |
5 bytes per pixel |
|
Y_UV12 |
32 |
semi-planar YUV 4:2:2 |
12 |
3 bytes per 2 pixels |
|
Y_UV12_420 |
33 |
semi-planar YUV 4:2:0 |
12 |
3 bytes per 2 pixels |
|
Y12 |
34 |
packed luma only |
12 |
3 bytes per 2 pixels |
|
RGB16 |
35 |
packed RGB |
16 |
6 bytes per pixel |
|
YUV16 |
36 |
packed YUV 4:4:4 |
16 |
6 bytes per pixel |
|
Y_UV16 |
37 |
semi-planar YUV 4:2:2 |
16 |
2 bytes per pixel |
|
Y_UV16_420 |
38 |
semi-planar YUV 4:2:0 |
16 |
2 bytes per pixel |
|
Y16 |
39 |
packed luma only |
16 |
2 bytes per pixel |
|
Y_U_V8 |
42 |
3 planar YUV 4:4:4 |
8 |
1 byte per pixel |
|
Y_U_V10 |
43 |
3 planar YUV 4:4:4 |
10 |
4 byte per pixel |
|
Notes: 1. Per pixel alpha memory formats are only available with Video Frame Buffer Read IP. |
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Table: IP Format to Common Video Pixel Format shows the IP format with the corresponding V4L2 and DRM pixel formats.
|
IP Format |
V4L2 4CC |
DRM 4CC |
|---|---|---|
|
RGBX8 |
V4L2_PIX_FMT_BGRX32 |
DRM_FORMAT_XBGR8888 |
|
BGRX8 |
V4L2_PIX_FMT_XRGB32 |
DRM_FORMAT_XRGB8888 |
|
YUVX8 |
V4L2_PIX_FMT_XVUY32 |
DRM_FORMAT_XVUY8888 |
|
YUYV8 |
V4L2_PIX_FMT_YUYV |
DRM_FORMAT_YUYV |
|
UYVY8 |
V4L2_PIX_FMT_UYVY |
DRM_FORMAT_UYVY |
|
RGBA8 |
Not supported |
Not supported |
|
BGRA8 |
Not supported |
Not supported |
|
YUVA8 |
Not supported |
Not supported |
|
RGBX10 |
V4L2_PIX_FMT_XBGR30 |
DRM_FORMAT_XBGR2101010 |
|
YUVX10 |
V4L2_PIX_FMT_XVUY10 |
DRM_FORMAT_XVUY2101010 |
|
Y_UV8 |
V4L2_PIX_FMT_NV16 |
DRM_FORMAT_NV16 |
|
Y_UV8_420 |
V4L2_PIX_FMT_NV12 |
DRM_FORMAT_NV12 |
|
RGB8 |
V4L2_PIX_FMT_RGB24 |
DRM_FORMAT_BGR888 |
|
BGR8 |
V4L2_PIX_FMT_BGR24 |
DRM_FORMAT_RGB888 |
|
YUV8 |
V4L2_PIX_FMT_VUY24 |
DRM_FORMAT_VUY888 |
|
Y_UV10 |
V4L2_PIX_FMT_XV20M |
DRM_FORMAT_XV20 |
|
Y_UV10_420 |
V4L2_PIX_FMT_XV15M |
DRM_FORMAT_XV15 |
|
Y8 |
V4L2_PIX_FMT_GREY |
DRM_FORMAT_Y8 |
|
XY10 |
V4L2_PIX_FMT_XY10 (1) |
DRM_FORMAT_Y10 |
|
RGBX12 |
V4L2_PIX_FMT_XBGR40 (1) |
Not supported |
|
YUVX12 |
Not supported |
Not supported |
|
Y_UV12 |
V4L2_PIX_FMT_X212 (1) V4L2_PIX_FMT_X212M (1) |
Not supported |
|
Y_UV12_420 |
V4L2_PIX_FMT_X012 (1) V4L2_PIX_FMT_X012M (1) |
Not supported |
|
Y12 |
V4L2_PIX_FMT_XY12 (1) |
Not supported |
|
RGB16 |
V4L2_PIX_FMT_BGR48 |
Not supported |
|
YUV16 |
Not Supported |
Not supported |
|
Y_UV16 |
V4L2_PIX_FMT_X216 (1) V4L2_PIX_FMT_X216M (1) |
Not supported |
|
Y_UV16_420 |
V4L2_PIX_FMT_X016 (1) V4L2_PIX_FMT_X016M (1) |
Not supported |
|
Y16 |
V4L2_PIX_FMT_Y16 |
Not supported |
|
Notes:
1.
Xilinx only formats
|
||
The following tables explain the expected pixel mappings in memory for each of the mentioned listed formats.
Note: RGB formats are stored in memory in RGB order which is different than the pixel mapping in AXI4-Stream Video IP and System Design Guide (UG934) [Ref 2] .