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Date: Tue, 1 Feb 2011 13:52:52 +0100
From: Antonio Ospite <ospite@...denti.unina.it>
To: linux-media@...r.kernel.org
Cc: Antonio Ospite <ospite@...denti.unina.it>,
openkinect@...glegroups.com, Steven Toth <stoth@...nellabs.com>,
Randy Dunlap <rdunlap@...otime.net>,
Mauro Carvalho Chehab <mchehab@...radead.org>,
Guennadi Liakhovetski <g.liakhovetski@....de>,
Sakari Ailus <sakari.ailus@...well.research.nokia.com>,
Hans Verkuil <hverkuil@...all.nl>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Xiaolin Zhang <xiaolin.zhang@...el.com>,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] Add a 10 bpp packed greyscale format.
Add a 10 bits per pixel greyscale format in a packed array representation,
naming it Y10P. Such pixel format is supplied for instance by the Kinect
sensor device.
Signed-off-by: Antonio Ospite <ospite@...denti.unina.it>
---
Hi,
Changes since v1:
* Fixed a trailing space, I forgot to run ./scripts/checkpatch.pl on v1
I also added maintainers from ./scripts/get_maintainer.pl to CC, this should
increase the chance for the patch to be noticed.
Please comment on that, so I can send the final version if needed and start
adding support for the format to libv4l.
Thanks,
Antonio Ospite
http://ao2.it
Documentation/DocBook/media-entities.tmpl | 1 +
Documentation/DocBook/v4l/pixfmt-y10p.xml | 43 +++++++++++++++++++++++++++++
Documentation/DocBook/v4l/pixfmt.xml | 1 +
Documentation/DocBook/v4l/videodev2.h.xml | 1 +
include/linux/videodev2.h | 1 +
5 files changed, 47 insertions(+), 0 deletions(-)
create mode 100644 Documentation/DocBook/v4l/pixfmt-y10p.xml
diff --git a/Documentation/DocBook/media-entities.tmpl b/Documentation/DocBook/media-entities.tmpl
index be34dcb..2b18de5 100644
--- a/Documentation/DocBook/media-entities.tmpl
+++ b/Documentation/DocBook/media-entities.tmpl
@@ -253,6 +253,7 @@
<!ENTITY sub-srggb10 SYSTEM "v4l/pixfmt-srggb10.xml">
<!ENTITY sub-srggb8 SYSTEM "v4l/pixfmt-srggb8.xml">
<!ENTITY sub-y10 SYSTEM "v4l/pixfmt-y10.xml">
+<!ENTITY sub-y10p SYSTEM "v4l/pixfmt-y10p.xml">
<!ENTITY sub-pixfmt SYSTEM "v4l/pixfmt.xml">
<!ENTITY sub-cropcap SYSTEM "v4l/vidioc-cropcap.xml">
<!ENTITY sub-dbg-g-register SYSTEM "v4l/vidioc-dbg-g-register.xml">
diff --git a/Documentation/DocBook/v4l/pixfmt-y10p.xml b/Documentation/DocBook/v4l/pixfmt-y10p.xml
new file mode 100644
index 0000000..5323ffe
--- /dev/null
+++ b/Documentation/DocBook/v4l/pixfmt-y10p.xml
@@ -0,0 +1,43 @@
+<refentry id="V4L2-PIX-FMT-Y10P">
+ <refmeta>
+ <refentrytitle>V4L2_PIX_FMT_Y10P ('Y10P')</refentrytitle>
+ &manvol;
+ </refmeta>
+ <refnamediv>
+ <refname><constant>V4L2_PIX_FMT_Y10P</constant></refname>
+ <refpurpose>Grey-scale image as a packed array</refpurpose>
+ </refnamediv>
+ <refsect1>
+ <title>Description</title>
+
+ <para>This is a packed grey-scale image format with a depth of 10 bits per
+ pixel. Pixels are stored in a packed array of 10bit bits per pixel, with
+ no padding between them and with the most significant bits coming first
+ from the left.</para>
+
+ <example>
+ <title><constant>V4L2_PIX_FMT_Y10P</constant> 4 pixel data stream taking 5 bytes</title>
+
+ <formalpara>
+ <title>Packed representation</title>
+ <para>pixels cross the byte boundary and have a ratio of 5 bytes for each 4
+ pixels.
+ <informaltable frame="all">
+ <tgroup cols="5" align="center">
+ <colspec align="left" colwidth="2*" />
+ <tbody valign="top">
+ <row>
+ <entry>Y'<subscript>00[9:2]</subscript></entry>
+ <entry>Y'<subscript>00[1:0]</subscript>Y'<subscript>01[9:4]</subscript></entry>
+ <entry>Y'<subscript>01[3:0]</subscript>Y'<subscript>02[9:6]</subscript></entry>
+ <entry>Y'<subscript>02[5:0]</subscript>Y'<subscript>03[9:8]</subscript></entry>
+ <entry>Y'<subscript>03[7:0]</subscript></entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </informaltable>
+ </para>
+ </formalpara>
+ </example>
+ </refsect1>
+</refentry>
diff --git a/Documentation/DocBook/v4l/pixfmt.xml b/Documentation/DocBook/v4l/pixfmt.xml
index d7c4671..3682701 100644
--- a/Documentation/DocBook/v4l/pixfmt.xml
+++ b/Documentation/DocBook/v4l/pixfmt.xml
@@ -592,6 +592,7 @@ information.</para>
&sub-packed-yuv;
&sub-grey;
&sub-y10;
+ &sub-y10p;
&sub-y16;
&sub-yuyv;
&sub-uyvy;
diff --git a/Documentation/DocBook/v4l/videodev2.h.xml b/Documentation/DocBook/v4l/videodev2.h.xml
index 325b23b..eb39f6b 100644
--- a/Documentation/DocBook/v4l/videodev2.h.xml
+++ b/Documentation/DocBook/v4l/videodev2.h.xml
@@ -289,6 +289,7 @@ struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> {
#define <link linkend="V4L2-PIX-FMT-Y4">V4L2_PIX_FMT_Y4</link> v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale */
#define <link linkend="V4L2-PIX-FMT-Y6">V4L2_PIX_FMT_Y6</link> v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */
#define <link linkend="V4L2-PIX-FMT-Y10">V4L2_PIX_FMT_Y10</link> v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
+#define <link linkend="V4L2-PIX-FMT-Y10P">V4L2_PIX_FMT_Y10P</link> v4l2_fourcc('Y', '1', '0', 'P') /* 10 Greyscale as a packed array */
#define <link linkend="V4L2-PIX-FMT-Y16">V4L2_PIX_FMT_Y16</link> v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
/* Palette formats */
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 5f6f470..7682581 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -288,6 +288,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_Y4 v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale */
#define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */
#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
+#define V4L2_PIX_FMT_Y10P v4l2_fourcc('Y', '1', '0', 'P') /* 10 Greyscale as a packed array */
#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
/* Palette formats */
--
1.7.2.3
--
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