TestVid Pixel Formats
All TestVid streams start as fully uncompressed YCbCr (YUV) images. These streams are available as 4:2:2 or 4:2:0 video using anywhere from 8 to 12 bits per component (12 to 24 bits per pixel). This article describes the pixel layout for the TestVid streams, which will allow you to write your own readers, if necessary. The pixel type is available in the DHDR files included with your Tvids. Standard UYUV, V210, yuv2 and other uncompressed formats are also available via the included translation software.
Native TestVid Formats
YCbCr 4:4:4 14 Bit Planar
FourCC: 444F
DHDR: yuv444_14le
Format: 14 bit components in 16 bit container, little endian. Y plane followed by U/Cb and V/Cr planes
Example: T2V005_HighRes (HD)
| Horizontal | Vertical | |
| Y Sample Period | 1 | 1 |
| U/Cb Sample Period | 1 | 1 |
| V/Cr Sample Period | 1 | 1 |
YCbCr 4:4:4 12 Bit Planar
FourCC: 444E
DHDR: yuv444_12le
Format: 12 bit components in 16 bit container, little endian. Y plane followed by U/Cb and V/Cr planes
Example: T2V005_HighRes (2K)
| Horizontal | Vertical | |
| Y Sample Period | 1 | 1 |
| U/Cb Sample Period | 1 | 1 |
| V/Cr Sample Period | 1 | 1 |
YCbCr 4:2:2 12 Bit Planar
FourCC: 224E
DHDR: yuv422_12le
Format: 12 bit components in 16 bit container, little endian. Y plane followed by 2x1 subsampled U/Cb and V/Cr planes
Example: T2V041 (4K)
| Horizontal | Vertical | |
| Y Sample Period | 1 | 1 |
| U/Cb Sample Period | 2 | 1 |
| V/Cr Sample Period | 2 | 1 |
YCbCr 4:2:2 10 Bit Planar
FourCC: v210
DHDR: yuv422_10le
Format: 10 bit components in 16 bit container, little endian. Y plane followed by 2x1 subsampled U/Cb and V/Cr planes
Example: T2V005_HighRes (HD)
| Horizontal | Vertical | |
| Y Sample Period | 1 | 1 |
| U/Cb Sample Period | 2 | 1 |
| V/Cr Sample Period | 2 | 1 |
YCbCr 4:2:0 8 Bit Planar
FourCC: I420
DHDR: YUV420
Format: 8 bit Y plane followed by 8 bit 2x2 subsampled U/Cb and V/Cr planes.
Example: T2V003 (All)
| Horizontal | Vertical | |
| Y Sample Period | 1 | 1 |
| U/Cb Sample Period | 2 | 2 |
| V/Cr Sample Period | 2 | 2 |
TestVid makes short sample files in each format available, along with simple C/C++ code for reading the frames and extracting the raw YCbCr samples to qualified applicants. To request your free samples and code, please contact This email address is being protected from spambots. You need JavaScript enabled to view it..
Output TestVid Formats
YCbCr 4:2:2 8 Bit Interleaved (UYVY, yuv2)
FourCC: UYVY (avi), yuv2 (mov)
DHDR:
Format:
| Horizontal | Vertical | |
| Y Sample Period | 1 | 1 |
| U/Cb Sample Period | 2 | 1 |
| V/Cr Sample Period | 2 | 1 |
Byte Order:
| U/Cb | Y0 | V/Cr | Y1 |
YCrCb 4:2:2 8 Bit Interleaved (YUY2)
FourCC: YUY2 (avi)
DHDR:
Format:
| Horizontal | Vertical | |
| Y Sample Period | 1 | 1 |
| U/Cb Sample Period | 2 | 1 |
| V/Cr Sample Period | 2 | 1 |
Byte Order:
| Y0 | U/Cb | Y1 | V/Cr |
YCbCr 4:2:2 10 Bit Interleaved (v210)
FourCC: v210 (mov)
DHDR:
Format: Little endian
Byte Order:
| Horizontal | Vertical | |
| Y Sample Period | 1 | 1 |
| U/Cb Sample Period | 2 | 1 |
| V/Cr Sample Period | 2 | 1 |
Bit Order:
| Word 0 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Byte 3 | Byte 2 | Byte 1 | Byte 0 | ||||||||||||||||||||||||||||
| X | X | Cr 0 | Y´ 0 | Cb 0 | |||||||||||||||||||||||||||
| 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | ||
| X | X | Y' 2 | Cb 1 | Y' 1 | |||||||||||||||||||||||||||
| 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | ||
| X | X | Cb 2 | Y´ 3 | Cr 1 | |||||||||||||||||||||||||||
| 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | ||
| X | X | Y' 5 | Cr 2 | Y' 4 | |||||||||||||||||||||||||||
| 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | ||