[v2,4/7] v4l: Add packed Bayer raw12 pixel formats

Message ID	1466439608-22890-5-git-send-email-sakari.ailus@linux.intel.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-media-owner@kernel.org> From: Sakari Ailus <sakari.ailus@linux.intel.com> To: linux-media@vger.kernel.org Cc: hverkuil@xs4all.nl Subject: [PATCH v2 4/7] v4l: Add packed Bayer raw12 pixel formats Date: Mon, 20 Jun 2016 19:20:05 +0300 Message-Id: <1466439608-22890-5-git-send-email-sakari.ailus@linux.intel.com> In-Reply-To: <1466439608-22890-1-git-send-email-sakari.ailus@linux.intel.com> References: <1466439608-22890-1-git-send-email-sakari.ailus@linux.intel.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk

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 */

[v2,4/7] v4l: Add packed Bayer raw12 pixel formats

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