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[media] 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.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Antonio Ospite 2011-04-07 12:45:51 -03:00 коммит произвёл Mauro Carvalho Chehab
Родитель da75191b43
Коммит 8bb36c2139
5 изменённых файлов: 51 добавлений и 0 удалений
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1
Documentation/DocBook/media-entities.tmpl
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@ -295,6 +295,7 @@
<!ENTITY sub-srggb8 SYSTEM "v4l/pixfmt-srggb8.xml">
<!ENTITY sub-y10 SYSTEM "v4l/pixfmt-y10.xml">
<!ENTITY sub-y12 SYSTEM "v4l/pixfmt-y12.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">

43
Documentation/DocBook/v4l/pixfmt-y10b.xml Normal file
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@ -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>

1
Documentation/DocBook/v4l/pixfmt.xml
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@ -697,6 +697,7 @@ information.</para>
&sub-grey;
&sub-y10;
&sub-y12;
&sub-y10b;
&sub-y16;
&sub-yuyv;
&sub-uyvy;

3
Documentation/DocBook/v4l/videodev2.h.xml
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@ -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 */

3
include/linux/videodev2.h
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@ -311,6 +311,9 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 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 */