Commit 5df082e2 authored by Evgeni Raikhel's avatar Evgeni Raikhel Committed by Mauro Carvalho Chehab

[media] Documentation: Intel SR300 Depth camera INZI format

Provide the frame structure and data layout of V4L2-PIX-FMT-INZI
format utilized by Intel SR300 Depth camera.
Signed-off-by: default avatarEvgeni Raikhel <evgeni.raikhel@intel.com>
Acked-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 52276df0
......@@ -12,4 +12,5 @@ Depth data provides distance to points, mapped onto the image plane
.. toctree::
:maxdepth: 1
pixfmt-inzi
pixfmt-z16
.. -*- coding: utf-8; mode: rst -*-
.. _V4L2-PIX-FMT-INZI:
**************************
V4L2_PIX_FMT_INZI ('INZI')
**************************
Infrared 10-bit linked with Depth 16-bit images
Description
===========
Proprietary multi-planar format used by Intel SR300 Depth cameras, comprise of
Infrared image followed by Depth data. The pixel definition is 32-bpp,
with the Depth and Infrared Data split into separate continuous planes of
identical dimensions.
The first plane - Infrared data - is stored according to
:ref:`V4L2_PIX_FMT_Y10 <V4L2-PIX-FMT-Y10>` greyscale format.
Each pixel is 16-bit cell, with actual data stored in the 10 LSBs
with values in range 0 to 1023.
The six remaining MSBs are padded with zeros.
The second plane provides 16-bit per-pixel Depth data arranged in
:ref:`V4L2-PIX-FMT-Z16 <V4L2-PIX-FMT-Z16>` format.
**Frame Structure.**
Each cell is a 16-bit word with more significant data stored at higher
memory address (byte order is little-endian).
.. raw:: latex
\newline\newline\begin{adjustbox}{width=\columnwidth}
.. tabularcolumns:: |p{4.0cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|
.. flat-table::
:header-rows: 0
:stub-columns: 1
:widths: 1 1 1 1 1 1
* - Ir\ :sub:`0,0`
- Ir\ :sub:`0,1`
- Ir\ :sub:`0,2`
- ...
- ...
- ...
* - :cspan:`5` ...
* - :cspan:`5` Infrared Data
* - :cspan:`5` ...
* - ...
- ...
- ...
- Ir\ :sub:`n-1,n-3`
- Ir\ :sub:`n-1,n-2`
- Ir\ :sub:`n-1,n-1`
* - Depth\ :sub:`0,0`
- Depth\ :sub:`0,1`
- Depth\ :sub:`0,2`
- ...
- ...
- ...
* - :cspan:`5` ...
* - :cspan:`5` Depth Data
* - :cspan:`5` ...
* - ...
- ...
- ...
- Depth\ :sub:`n-1,n-3`
- Depth\ :sub:`n-1,n-2`
- Depth\ :sub:`n-1,n-1`
.. raw:: latex
\end{adjustbox}\newline\newline
......@@ -1131,6 +1131,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break;
case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break;
case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break;
case V4L2_PIX_FMT_INZI: descr = "Planar 10:16 Greyscale Depth"; break;
case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break;
case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break;
case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break;
......
......@@ -660,6 +660,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 12-bit L/R interleaved */
#define V4L2_PIX_FMT_Z16 v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */
#define V4L2_PIX_FMT_MT21C v4l2_fourcc('M', 'T', '2', '1') /* Mediatek compressed block mode */
#define V4L2_PIX_FMT_INZI v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */
/* SDR formats - used only for Software Defined Radio devices */
#define V4L2_SDR_FMT_CU8 v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
......
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