summaryrefslogtreecommitdiffstats
path: root/Documentation/userspace-api/media/v4l/pixfmt-nv24.rst
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/userspace-api/media/v4l/pixfmt-nv24.rst')
-rw-r--r--Documentation/userspace-api/media/v4l/pixfmt-nv24.rst95
1 files changed, 95 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-nv24.rst b/Documentation/userspace-api/media/v4l/pixfmt-nv24.rst
new file mode 100644
index 000000000..bf1b94062
--- /dev/null
+++ b/Documentation/userspace-api/media/v4l/pixfmt-nv24.rst
@@ -0,0 +1,95 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+
+.. _V4L2-PIX-FMT-NV24:
+.. _V4L2-PIX-FMT-NV42:
+
+******************************************************
+V4L2_PIX_FMT_NV24 ('NV24'), V4L2_PIX_FMT_NV42 ('NV42')
+******************************************************
+
+V4L2_PIX_FMT_NV42
+Formats with full horizontal and vertical chroma resolutions, also known
+as YUV 4:4:4. One luminance and one chrominance plane with alternating
+chroma samples as opposed to ``V4L2_PIX_FMT_YVU420``
+
+
+Description
+===========
+
+These are two-plane versions of the YUV 4:4:4 format. The three
+components are separated into two sub-images or planes. The Y plane is
+first, with each Y sample stored in one byte per pixel. For
+``V4L2_PIX_FMT_NV24``, a combined CbCr plane immediately follows the Y
+plane in memory. The CbCr plane has the same width and height, in
+pixels, as the Y plane (and the image). Each line contains one CbCr pair
+per pixel, with each Cb and Cr sample stored in one byte.
+``V4L2_PIX_FMT_NV42`` is the same except that the Cb and Cr samples are
+swapped, the CrCb plane starts with a Cr sample.
+
+If the Y plane has pad bytes after each row, then the CbCr plane has
+twice as many pad bytes after its rows.
+
+**Byte Order.**
+Each cell is one byte.
+
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+
+ * - start + 0:
+ - Y'\ :sub:`00`
+ - Y'\ :sub:`01`
+ - Y'\ :sub:`02`
+ - Y'\ :sub:`03`
+ * - start + 4:
+ - Y'\ :sub:`10`
+ - Y'\ :sub:`11`
+ - Y'\ :sub:`12`
+ - Y'\ :sub:`13`
+ * - start + 8:
+ - Y'\ :sub:`20`
+ - Y'\ :sub:`21`
+ - Y'\ :sub:`22`
+ - Y'\ :sub:`23`
+ * - start + 12:
+ - Y'\ :sub:`30`
+ - Y'\ :sub:`31`
+ - Y'\ :sub:`32`
+ - Y'\ :sub:`33`
+ * - start + 16:
+ - Cb\ :sub:`00`
+ - Cr\ :sub:`00`
+ - Cb\ :sub:`01`
+ - Cr\ :sub:`01`
+ - Cb\ :sub:`02`
+ - Cr\ :sub:`02`
+ - Cb\ :sub:`03`
+ - Cr\ :sub:`03`
+ * - start + 24:
+ - Cb\ :sub:`10`
+ - Cr\ :sub:`10`
+ - Cb\ :sub:`11`
+ - Cr\ :sub:`11`
+ - Cb\ :sub:`12`
+ - Cr\ :sub:`12`
+ - Cb\ :sub:`13`
+ - Cr\ :sub:`13`
+ * - start + 32:
+ - Cb\ :sub:`20`
+ - Cr\ :sub:`20`
+ - Cb\ :sub:`21`
+ - Cr\ :sub:`21`
+ - Cb\ :sub:`22`
+ - Cr\ :sub:`22`
+ - Cb\ :sub:`23`
+ - Cr\ :sub:`23`
+ * - start + 40:
+ - Cb\ :sub:`30`
+ - Cr\ :sub:`30`
+ - Cb\ :sub:`31`
+ - Cr\ :sub:`31`
+ - Cb\ :sub:`32`
+ - Cr\ :sub:`32`
+ - Cb\ :sub:`33`
+ - Cr\ :sub:`33`