These formats are compressed 12-bit raw bayer formats with four different
pixel orders. They are similar to 10-bit variants. The formats added by
this patch are
V4L2_PIX_FMT_SBGGR12P
V4L2_PIX_FMT_SGBRG12P
V4L2_PIX_FMT_SGRBG12P
V4L2_PIX_FMT_SRGGB12P
Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Acked-by: Hans Verkuil <hans.verk...@cisco.com>
---
.../DocBook/media/v4l/pixfmt-srggb12p.xml | 103 +++++++++++++++++++++
Documentation/DocBook/media/v4l/pixfmt.xml | 1 +
include/uapi/linux/videodev2.h | 5 +
3 files changed, 109 insertions(+)
create mode 100644 Documentation/DocBook/media/v4l/pixfmt-srggb12p.xml
diff --git a/Documentation/DocBook/media/v4l/pixfmt-srggb12p.xml
b/Documentation/DocBook/media/v4l/pixfmt-srggb12p.xml
new file mode 100644
index 0000000..12f0ac1
--- /dev/null
+++ b/Documentation/DocBook/media/v4l/pixfmt-srggb12p.xml
@@ -0,0 +1,103 @@
+ <refentry id="pixfmt-srggb12p">
+ <refmeta>
+ <refentrytitle>V4L2_PIX_FMT_SRGGB12P ('pRCC'),
+ V4L2_PIX_FMT_SGRBG12P ('pgCC'),
+ V4L2_PIX_FMT_SGBRG12P ('pGCC'),
+ V4L2_PIX_FMT_SBGGR12P ('pBCC')
+ </refentrytitle>
+ &manvol;
+ </refmeta>
+ <refnamediv>
+ <refname
id="V4L2-PIX-FMT-SRGGB12P"><constant>V4L2_PIX_FMT_SRGGB12P</constant></refname>
+ <refname
id="V4L2-PIX-FMT-SGRBG12P"><constant>V4L2_PIX_FMT_SGRBG12P</constant></refname>
+ <refname
id="V4L2-PIX-FMT-SGBRG12P"><constant>V4L2_PIX_FMT_SGBRG12P</constant></refname>
+ <refname
id="V4L2-PIX-FMT-SBGGR12P"><constant>V4L2_PIX_FMT_SBGGR12P</constant></refname>
+ <refpurpose>12-bit packed Bayer formats</refpurpose>
+ </refnamediv>
+ <refsect1>
+ <title>Description</title>
+
+ <para>These four pixel formats are packed raw sRGB / Bayer
+ formats with 12 bits per colour. Every four consecutive colour
+ components are packed into 6 bytes. Each of the first 4 bytes
+ contain the 8 high order bits of the pixels, and the fifth and
+ sixth bytes contains the four least significants bits of each
+ pixel, in the same order.</para>
+
+ <para>Each n-pixel row contains n/2 green samples and n/2 blue
+ or red samples, with alternating green-red and green-blue
+ rows. They are conventionally described as GRGR... BGBG...,
+ RGRG... GBGB..., etc. Below is an example of one of these
+ formats:</para>
+
+ <example>
+ <title><constant>V4L2_PIX_FMT_SBGGR12P</constant> 4 × 4
+ pixel image</title>
+
+ <formalpara>
+ <title>Byte Order.</title>
+ <para>Each cell is one byte.
+ <informaltable frame="topbot" colsep="1" rowsep="1">
+ <tgroup cols="6" align="center">
+ <colspec align="left" colwidth="2*" />
+ <tbody valign="top">
+ <row>
+ <entry>start + 0:</entry>
+ <entry>B<subscript>00high</subscript></entry>
+ <entry>G<subscript>01high</subscript></entry>
+ <entry>G<subscript>01low</subscript>(bits 7--4)
+ B<subscript>00low</subscript>(bits 3--0)
+ </entry>
+ <entry>B<subscript>02high</subscript></entry>
+ <entry>G<subscript>03high</subscript></entry>
+ <entry>G<subscript>03low</subscript>(bits 7--4)
+ B<subscript>02low</subscript>(bits 3--0)
+ </entry>
+ </row>
+ <row>
+ <entry>start + 6:</entry>
+ <entry>G<subscript>10high</subscript></entry>
+ <entry>R<subscript>11high</subscript></entry>
+ <entry>R<subscript>11low</subscript>(bits 7--4)
+ G<subscript>10low</subscript>(bits 3--0)
+ </entry>
+ <entry>G<subscript>12high</subscript></entry>
+ <entry>R<subscript>13high</subscript></entry>
+ <entry>R<subscript>13low</subscript>(bits 7--4)
+ G<subscript>12low</subscript>(bits 3--0)
+ </entry>
+ </row>
+ <row>
+ <entry>start + 12:</entry>
+ <entry>B<subscript>20high</subscript></entry>
+ <entry>G<subscript>21high</subscript></entry>
+ <entry>G<subscript>21low</subscript>(bits 7--4)
+ B<subscript>20low</subscript>(bits 3--0)
+ </entry>
+ <entry>B<subscript>22high</subscript></entry>
+ <entry>G<subscript>23high</subscript></entry>
+ <entry>G<subscript>23low</subscript>(bits 7--4)
+ B<subscript>22low</subscript>(bits 3--0)
+ </entry>
+ </row>
+ <row>
+ <entry>start + 18:</entry>
+ <entry>G<subscript>30high</subscript></entry>
+ <entry>R<subscript>31high</subscript></entry>
+ <entry>R<subscript>31low</subscript>(bits 7--4)
+ G<subscript>30low</subscript>(bits 3--0)
+ </entry>
+ <entry>G<subscript>32high</subscript></entry>
+ <entry>R<subscript>33high</subscript></entry>
+ <entry>R<subscript>33low</subscript>(bits 7--4)
+ G<subscript>32low</subscript>(bits 3--0)
+ </entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </informaltable>
+ </para>
+ </formalpara>
+ </example>
+ </refsect1>
+</refentry>
diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml
b/Documentation/DocBook/media/v4l/pixfmt.xml
index 5a08aee..457337e 100644
--- a/Documentation/DocBook/media/v4l/pixfmt.xml
+++ b/Documentation/DocBook/media/v4l/pixfmt.xml
@@ -1593,6 +1593,7 @@ access the palette, this must be done with ioctls of the
Linux framebuffer API.<
&sub-srggb10alaw8;
&sub-srggb10dpcm8;
&sub-srggb12;
+ &sub-srggb12p;
</section>
<section id="yuv-formats">
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 8f95191..7ace868 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -576,6 +576,11 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12 GBGB..
RGRG.. */
#define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12 GRGR..
BGBG.. */
#define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12 RGRG..
GBGB.. */
+ /* 12bit raw bayer packed, 6 bytes for every 4 pixels */
+#define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C')
+#define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')
+#define V4L2_PIX_FMT_SGRBG12P v4l2_fourcc('p', 'g', 'C', 'C')
+#define V4L2_PIX_FMT_SRGGB12P v4l2_fourcc('p', 'R', 'C', 'C')
#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG..
GRGR.. */
/* compressed formats */
--
1.9.1
--
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