YUV sub sampling patterns supported by Breeze

The positions of luma and chroma samples in every YUV format supported by Breeze are characterized by the specific pattern. Currently Breeze supports 7 YUV / YCbCr sub sampling patterns in 3 sub sampling ratio groups:

  • 4:4:4 - uniform
  • 4:2:2 - co site even
  • 4:2:2 - co site odd
  • 4:2:0 - centered
  • 4:2:0 - co site even
  • 4:2:0 - co site odd
  • 4:2:0 - centered

Table 1: YUV sub sampling patterns supported by Breeze
Sub sampling ratio Sub sampling pattern Color component size
Uniform Co site Even Co site Odd Centered Luma Y Chroma Cb Chroma Cr
4:4:4 1 1 1
4:2:2 1 1/2 1/2
4:2:0 1 1/4 1/4

Designation of used symbols are the following:

- position of luma sample only

- position of 2 chroma samples only

- positions of luma and 2 chroma samples are co sited.

References:

  1. RECOMMENDATION ITU-R BT.601-5, 1982-1995.
  2. RECOMMENDATION ITU-R BT.709-5, 1990-2002.

The following below topics give more detailed technical information about YUV formats implemented in the Breeze media software. Click highlighted links to learn more: