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Message-Id: <1302191152-7218-2-git-send-email-ospite@studenti.unina.it>
Date: Thu, 7 Apr 2011 17:45:51 +0200
From: Antonio Ospite <ospite@...denti.unina.it>
To: linux-media@...r.kernel.org
Cc: Antonio Ospite <ospite@...denti.unina.it>,
Steven Toth <stoth@...nellabs.com>,
Jean-Francois Moine <moinejf@...e.fr>,
Drew Fisher <drew.m.fisher@...il.com>,
OpenKinect <openkinect@...glegroups.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] Add Y10B, a 10 bpp bit-packed greyscale format.
Add a 10 bits per pixel greyscale format in a bit-packed array representation,
naming it Y10B. Such pixel format is supplied for instance by the Kinect
sensor device.
Cc: Steven Toth <stoth@...nellabs.com>
Signed-off-by: Antonio Ospite <ospite@...denti.unina.it>
---
Documentation/DocBook/media-entities.tmpl | 1 +
Documentation/DocBook/v4l/pixfmt-y10b.xml | 43 +++++++++++++++++++++++++++++
Documentation/DocBook/v4l/pixfmt.xml | 1 +
Documentation/DocBook/v4l/videodev2.h.xml | 3 ++
include/linux/videodev2.h | 3 ++
5 files changed, 51 insertions(+), 0 deletions(-)
create mode 100644 Documentation/DocBook/v4l/pixfmt-y10b.xml
diff --git a/Documentation/DocBook/media-entities.tmpl b/Documentation/DocBook/media-entities.tmpl
index 5d259c6..2dead20 100644
--- a/Documentation/DocBook/media-entities.tmpl
+++ b/Documentation/DocBook/media-entities.tmpl
@@ -294,6 +294,7 @@
<!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-y10b SYSTEM "v4l/pixfmt-y10b.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-y10b.xml b/Documentation/DocBook/v4l/pixfmt-y10b.xml
new file mode 100644
index 0000000..adb0ad8
--- /dev/null
+++ b/Documentation/DocBook/v4l/pixfmt-y10b.xml
@@ -0,0 +1,43 @@
+<refentry id="V4L2-PIX-FMT-Y10BPACK">
+ <refmeta>
+ <refentrytitle>V4L2_PIX_FMT_Y10BPACK ('Y10B')</refentrytitle>
+ &manvol;
+ </refmeta>
+ <refnamediv>
+ <refname><constant>V4L2_PIX_FMT_Y10BPACK</constant></refname>
+ <refpurpose>Grey-scale image as a bit-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 bit-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_Y10BPACK</constant> 4 pixel data stream taking 5 bytes</title>
+
+ <formalpara>
+ <title>Bit-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 c6fdcbb..2e824a3 100644
--- a/Documentation/DocBook/v4l/pixfmt.xml
+++ b/Documentation/DocBook/v4l/pixfmt.xml
@@ -696,6 +696,7 @@ information.</para>
&sub-packed-yuv;
&sub-grey;
&sub-y10;
+ &sub-y10b;
&sub-y16;
&sub-yuyv;
&sub-uyvy;
diff --git a/Documentation/DocBook/v4l/videodev2.h.xml b/Documentation/DocBook/v4l/videodev2.h.xml
index 2b796a2..937acf5 100644
--- a/Documentation/DocBook/v4l/videodev2.h.xml
+++ b/Documentation/DocBook/v4l/videodev2.h.xml
@@ -311,6 +311,9 @@ struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> {
#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-Y16">V4L2_PIX_FMT_Y16</link> v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
+/* Grey bit-packed formats */
+#define <link linkend="V4L2-PIX-FMT-Y10BPACK">V4L2_PIX_FMT_Y10BPACK</link> v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */
+
/* Palette formats */
#define <link linkend="V4L2-PIX-FMT-PAL8">V4L2_PIX_FMT_PAL8</link> v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index aa6c393..38575ae 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -310,6 +310,9 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
+/* Grey bit-packed formats */
+#define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */
+
/* Palette formats */
#define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */
--
1.7.4.1
--
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