| .. -*- coding: utf-8; mode: rst -*- |
| |
| .. _V4L2-PIX-FMT-Y41P: |
| |
| ************************** |
| V4L2_PIX_FMT_Y41P ('Y41P') |
| ************************** |
| |
| |
| Format with ΒΌ horizontal chroma resolution, also known as YUV 4:1:1 |
| |
| |
| Description |
| =========== |
| |
| In this format each 12 bytes is eight pixels. In the twelve bytes are |
| two CbCr pairs and eight Y's. The first CbCr pair goes with the first |
| four Y's, and the second CbCr pair goes with the other four Y's. The Cb |
| and Cr components have one fourth the horizontal resolution of the Y |
| component. |
| |
| Do not confuse this format with |
| :ref:`V4L2_PIX_FMT_YUV411P <V4L2-PIX-FMT-YUV411P>`. Y41P is derived |
| from "YUV 4:1:1 *packed*", while YUV411P stands for "YUV 4:1:1 |
| *planar*". |
| |
| **Byte Order.** |
| Each cell is one byte. |
| |
| |
| |
| |
| .. flat-table:: |
| :header-rows: 0 |
| :stub-columns: 0 |
| |
| * - start + 0: |
| - Cb\ :sub:`00` |
| - Y'\ :sub:`00` |
| - Cr\ :sub:`00` |
| - Y'\ :sub:`01` |
| - Cb\ :sub:`01` |
| - Y'\ :sub:`02` |
| - Cr\ :sub:`01` |
| - Y'\ :sub:`03` |
| - Y'\ :sub:`04` |
| - Y'\ :sub:`05` |
| - Y'\ :sub:`06` |
| - Y'\ :sub:`07` |
| * - start + 12: |
| - Cb\ :sub:`10` |
| - Y'\ :sub:`10` |
| - Cr\ :sub:`10` |
| - Y'\ :sub:`11` |
| - Cb\ :sub:`11` |
| - Y'\ :sub:`12` |
| - Cr\ :sub:`11` |
| - Y'\ :sub:`13` |
| - Y'\ :sub:`14` |
| - Y'\ :sub:`15` |
| - Y'\ :sub:`16` |
| - Y'\ :sub:`17` |
| * - start + 24: |
| - Cb\ :sub:`20` |
| - Y'\ :sub:`20` |
| - Cr\ :sub:`20` |
| - Y'\ :sub:`21` |
| - Cb\ :sub:`21` |
| - Y'\ :sub:`22` |
| - Cr\ :sub:`21` |
| - Y'\ :sub:`23` |
| - Y'\ :sub:`24` |
| - Y'\ :sub:`25` |
| - Y'\ :sub:`26` |
| - Y'\ :sub:`27` |
| * - start + 36: |
| - Cb\ :sub:`30` |
| - Y'\ :sub:`30` |
| - Cr\ :sub:`30` |
| - Y'\ :sub:`31` |
| - Cb\ :sub:`31` |
| - Y'\ :sub:`32` |
| - Cr\ :sub:`31` |
| - Y'\ :sub:`33` |
| - Y'\ :sub:`34` |
| - Y'\ :sub:`35` |
| - Y'\ :sub:`36` |
| - Y'\ :sub:`37` |
| |
| |
| **Color Sample Location:** |
| |
| .. flat-table:: |
| :header-rows: 0 |
| :stub-columns: 0 |
| |
| * - |
| - 0 |
| - 1 |
| - |
| - 2 |
| - 3 |
| - 4 |
| - 5 |
| - |
| - 6 |
| - 7 |
| * - 0 |
| - Y |
| - Y |
| - C |
| - Y |
| - Y |
| - Y |
| - Y |
| - C |
| - Y |
| - Y |
| * - 1 |
| - Y |
| - Y |
| - C |
| - Y |
| - Y |
| - Y |
| - Y |
| - C |
| - Y |
| - Y |
| * - 2 |
| - Y |
| - Y |
| - C |
| - Y |
| - Y |
| - Y |
| - Y |
| - C |
| - Y |
| - Y |
| * - 3 |
| - Y |
| - Y |
| - C |
| - Y |
| - Y |
| - Y |
| - Y |
| - C |
| - Y |
| - Y |
