Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/Documentation/media/uapi/v4l/pixfmt-y12i.rst b/Documentation/media/uapi/v4l/pixfmt-y12i.rst
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+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-PIX-FMT-Y12I:
+
+**************************
+V4L2_PIX_FMT_Y12I ('Y12I')
+**************************
+
+Interleaved grey-scale image, e.g. from a stereo-pair
+
+
+Description
+===========
+
+This is a grey-scale image with a depth of 12 bits per pixel, but with
+pixels from 2 sources interleaved and bit-packed. Each pixel is stored
+in a 24-bit word in the little-endian order. On a little-endian machine
+these pixels can be deinterlaced using
+
+.. code-block:: c
+
+    __u8 *buf;
+    left0 = 0xfff & *(__u16 *)buf;
+    right0 = *(__u16 *)(buf + 1) >> 4;
+
+**Bit-packed representation.**
+pixels cross the byte boundary and have a ratio of 3 bytes for each
+interleaved pixel.
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    * - Y'\ :sub:`0left[7:0]`
+      - Y'\ :sub:`0right[3:0]`\ Y'\ :sub:`0left[11:8]`
+      - Y'\ :sub:`0right[11:4]`