[media] v4l: Add YUV 4:2:2 and YUV 4:4:4 tri-planar non-contiguous formats

The formats use three planes through the multiplanar API, allowing for
non-contiguous planes in memory.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
new file mode 100644 (file)
index 0000000..dd50280
--- /dev/null
+++ b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
@@ -0,0 +1,166 @@
+    <refentry>
+      <refmeta>
+       <refentrytitle>V4L2_PIX_FMT_YUV422M ('YM16'), V4L2_PIX_FMT_YVU422M ('YM61')</refentrytitle>
+       &manvol;
+      </refmeta>
+      <refnamediv>
+       <refname id="V4L2-PIX-FMT-YUV422M"><constant>V4L2_PIX_FMT_YUV422M</constant></refname>
+       <refname id="V4L2-PIX-FMT-YVU422M"><constant>V4L2_PIX_FMT_YVU422M</constant></refname>
+       <refpurpose>Planar formats with &frac12; horizontal resolution, also
+       known as YUV and YVU 4:2:2</refpurpose>
+      </refnamediv>
+
+      <refsect1>
+       <title>Description</title>
+
+       <para>This is a multi-planar format, as opposed to a packed format.
+The three components are separated into three sub-images or planes.</para>
+
+       <para>The Y plane is first. The Y plane has one byte per pixel.
+For <constant>V4L2_PIX_FMT_YUV422M</constant> the Cb data
+constitutes the second plane which is half the width of the Y plane (and of the
+image). Each Cb belongs to two pixels. For example,
+Cb<subscript>0</subscript> belongs to Y'<subscript>00</subscript>,
+Y'<subscript>01</subscript>. The Cr data, just like the Cb plane, is
+in the third plane. </para>
+
+       <para><constant>V4L2_PIX_FMT_YVU422M</constant> is the same except
+the Cr data is stored in the second plane and the Cb data in the third plane.
+</para>
+
+       <para>If the Y plane has pad bytes after each row, then the Cb
+and Cr planes have half as many pad bytes after their rows. In other
+words, two Cx rows (including padding) is exactly as long as one Y row
+(including padding).</para>
+
+       <para><constant>V4L2_PIX_FMT_YUV422M</constant> and
+<constant>V4L2_PIX_FMT_YVU422M</constant> are intended to be
+used only in drivers and applications that support the multi-planar API,
+described in <xref linkend="planar-apis"/>. </para>
+
+       <example>
+         <title><constant>V4L2_PIX_FMT_YUV422M</constant> 4 &times; 4
+pixel image</title>
+
+         <formalpara>
+           <title>Byte Order.</title>
+           <para>Each cell is one byte.
+               <informaltable frame="none">
+               <tgroup cols="5" align="center">
+                 <colspec align="left" colwidth="2*" />
+                 <tbody valign="top">
+                   <row>
+                     <entry>start0&nbsp;+&nbsp;0:</entry>
+                     <entry>Y'<subscript>00</subscript></entry>
+                     <entry>Y'<subscript>01</subscript></entry>
+                     <entry>Y'<subscript>02</subscript></entry>
+                     <entry>Y'<subscript>03</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start0&nbsp;+&nbsp;4:</entry>
+                     <entry>Y'<subscript>10</subscript></entry>
+                     <entry>Y'<subscript>11</subscript></entry>
+                     <entry>Y'<subscript>12</subscript></entry>
+                     <entry>Y'<subscript>13</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start0&nbsp;+&nbsp;8:</entry>
+                     <entry>Y'<subscript>20</subscript></entry>
+                     <entry>Y'<subscript>21</subscript></entry>
+                     <entry>Y'<subscript>22</subscript></entry>
+                     <entry>Y'<subscript>23</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start0&nbsp;+&nbsp;12:</entry>
+                     <entry>Y'<subscript>30</subscript></entry>
+                     <entry>Y'<subscript>31</subscript></entry>
+                     <entry>Y'<subscript>32</subscript></entry>
+                     <entry>Y'<subscript>33</subscript></entry>
+                   </row>
+                   <row><entry></entry></row>
+                   <row>
+                     <entry>start1&nbsp;+&nbsp;0:</entry>
+                     <entry>Cb<subscript>00</subscript></entry>
+                     <entry>Cb<subscript>01</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start1&nbsp;+&nbsp;2:</entry>
+                     <entry>Cb<subscript>10</subscript></entry>
+                     <entry>Cb<subscript>11</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start1&nbsp;+&nbsp;4:</entry>
+                     <entry>Cb<subscript>20</subscript></entry>
+                     <entry>Cb<subscript>21</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start1&nbsp;+&nbsp;6:</entry>
+                     <entry>Cb<subscript>30</subscript></entry>
+                     <entry>Cb<subscript>31</subscript></entry>
+                   </row>
+                   <row><entry></entry></row>
+                   <row>
+                     <entry>start2&nbsp;+&nbsp;0:</entry>
+                     <entry>Cr<subscript>00</subscript></entry>
+                     <entry>Cr<subscript>01</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start2&nbsp;+&nbsp;2:</entry>
+                     <entry>Cr<subscript>10</subscript></entry>
+                     <entry>Cr<subscript>11</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start2&nbsp;+&nbsp;4:</entry>
+                     <entry>Cr<subscript>20</subscript></entry>
+                     <entry>Cr<subscript>21</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start2&nbsp;+&nbsp;6:</entry>
+                     <entry>Cr<subscript>30</subscript></entry>
+                     <entry>Cr<subscript>31</subscript></entry>
+                   </row>
+                 </tbody>
+               </tgroup>
+               </informaltable>
+             </para>
+         </formalpara>
+
+         <formalpara>
+           <title>Color Sample Location.</title>
+           <para>
+               <informaltable frame="none">
+               <tgroup cols="7" align="center">
+                 <tbody valign="top">
+                   <row>
+                     <entry></entry>
+                     <entry>0</entry><entry></entry><entry>1</entry><entry></entry>
+                     <entry>2</entry><entry></entry><entry>3</entry>
+                   </row>
+                   <row>
+                     <entry>0</entry>
+                     <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry>
+                     <entry>Y</entry><entry>C</entry><entry>Y</entry>
+                   </row>
+                   <row>
+                     <entry>1</entry>
+                     <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry>
+                     <entry>Y</entry><entry>C</entry><entry>Y</entry>
+                   </row>
+                   <row>
+                     <entry>2</entry>
+                     <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry>
+                     <entry>Y</entry><entry>C</entry><entry>Y</entry>
+                   </row>
+                   <row>
+                     <entry>3</entry>
+                     <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry>
+                     <entry>Y</entry><entry>C</entry><entry>Y</entry>
+                   </row>
+                 </tbody>
+               </tgroup>
+               </informaltable>
+             </para>
+         </formalpara>
+       </example>
+      </refsect1>
+    </refentry>

diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml
new file mode 100644 (file)
index 0000000..1b73359
--- /dev/null
+++ b/Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml
@@ -0,0 +1,177 @@
+    <refentry>
+      <refmeta>
+       <refentrytitle>V4L2_PIX_FMT_YUV444M ('YM24'), V4L2_PIX_FMT_YVU444M ('YM42')</refentrytitle>
+       &manvol;
+      </refmeta>
+      <refnamediv>
+       <refname id="V4L2-PIX-FMT-YUV444M"><constant>V4L2_PIX_FMT_YUV444M</constant></refname>
+       <refname id="V4L2-PIX-FMT-YVU444M"><constant>V4L2_PIX_FMT_YVU444M</constant></refname>
+       <refpurpose>Planar formats with full horizontal resolution, also
+       known as YUV and YVU 4:4:4</refpurpose>
+      </refnamediv>
+
+      <refsect1>
+       <title>Description</title>
+
+       <para>This is a multi-planar format, as opposed to a packed format.
+The three components are separated into three sub-images or planes.</para>
+
+       <para>The Y plane is first. The Y plane has one byte per pixel.
+For <constant>V4L2_PIX_FMT_YUV444M</constant> the Cb data
+constitutes the second plane which is the same width and height as the Y plane
+(and as the image). The Cr data, just like the Cb plane, is in the third plane.
+</para>
+
+       <para><constant>V4L2_PIX_FMT_YVU444M</constant> is the same except
+the Cr data is stored in the second plane and the Cb data in the third plane.
+</para>
+       <para>If the Y plane has pad bytes after each row, then the Cb
+and Cr planes have the same number of pad bytes after their rows.</para>
+
+       <para><constant>V4L2_PIX_FMT_YUV444M</constant> and
+<constant>V4L2_PIX_FMT_YUV444M</constant> are intended to be
+used only in drivers and applications that support the multi-planar API,
+described in <xref linkend="planar-apis"/>. </para>
+
+       <example>
+         <title><constant>V4L2_PIX_FMT_YUV444M</constant> 4 &times; 4
+pixel image</title>
+
+         <formalpara>
+           <title>Byte Order.</title>
+           <para>Each cell is one byte.
+               <informaltable frame="none">
+               <tgroup cols="5" align="center">
+                 <colspec align="left" colwidth="2*" />
+                 <tbody valign="top">
+                   <row>
+                     <entry>start0&nbsp;+&nbsp;0:</entry>
+                     <entry>Y'<subscript>00</subscript></entry>
+                     <entry>Y'<subscript>01</subscript></entry>
+                     <entry>Y'<subscript>02</subscript></entry>
+                     <entry>Y'<subscript>03</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start0&nbsp;+&nbsp;4:</entry>
+                     <entry>Y'<subscript>10</subscript></entry>
+                     <entry>Y'<subscript>11</subscript></entry>
+                     <entry>Y'<subscript>12</subscript></entry>
+                     <entry>Y'<subscript>13</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start0&nbsp;+&nbsp;8:</entry>
+                     <entry>Y'<subscript>20</subscript></entry>
+                     <entry>Y'<subscript>21</subscript></entry>
+                     <entry>Y'<subscript>22</subscript></entry>
+                     <entry>Y'<subscript>23</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start0&nbsp;+&nbsp;12:</entry>
+                     <entry>Y'<subscript>30</subscript></entry>
+                     <entry>Y'<subscript>31</subscript></entry>
+                     <entry>Y'<subscript>32</subscript></entry>
+                     <entry>Y'<subscript>33</subscript></entry>
+                   </row>
+                   <row><entry></entry></row>
+                   <row>
+                     <entry>start1&nbsp;+&nbsp;0:</entry>
+                     <entry>Cb<subscript>00</subscript></entry>
+                     <entry>Cb<subscript>01</subscript></entry>
+                     <entry>Cb<subscript>02</subscript></entry>
+                     <entry>Cb<subscript>03</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start1&nbsp;+&nbsp;4:</entry>
+                     <entry>Cb<subscript>10</subscript></entry>
+                     <entry>Cb<subscript>11</subscript></entry>
+                     <entry>Cb<subscript>12</subscript></entry>
+                     <entry>Cb<subscript>13</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start1&nbsp;+&nbsp;8:</entry>
+                     <entry>Cb<subscript>20</subscript></entry>
+                     <entry>Cb<subscript>21</subscript></entry>
+                     <entry>Cb<subscript>22</subscript></entry>
+                     <entry>Cb<subscript>23</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start1&nbsp;+&nbsp;12:</entry>
+                     <entry>Cb<subscript>20</subscript></entry>
+                     <entry>Cb<subscript>21</subscript></entry>
+                     <entry>Cb<subscript>32</subscript></entry>
+                     <entry>Cb<subscript>33</subscript></entry>
+                   </row>
+                   <row><entry></entry></row>
+                   <row>
+                     <entry>start2&nbsp;+&nbsp;0:</entry>
+                     <entry>Cr<subscript>00</subscript></entry>
+                     <entry>Cr<subscript>01</subscript></entry>
+                     <entry>Cr<subscript>02</subscript></entry>
+                     <entry>Cr<subscript>03</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start2&nbsp;+&nbsp;4:</entry>
+                     <entry>Cr<subscript>10</subscript></entry>
+                     <entry>Cr<subscript>11</subscript></entry>
+                     <entry>Cr<subscript>12</subscript></entry>
+                     <entry>Cr<subscript>13</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start2&nbsp;+&nbsp;8:</entry>
+                     <entry>Cr<subscript>20</subscript></entry>
+                     <entry>Cr<subscript>21</subscript></entry>
+                     <entry>Cr<subscript>22</subscript></entry>
+                     <entry>Cr<subscript>23</subscript></entry>
+                   </row>
+                   <row>
+                     <entry>start2&nbsp;+&nbsp;12:</entry>
+                     <entry>Cr<subscript>30</subscript></entry>
+                     <entry>Cr<subscript>31</subscript></entry>
+                     <entry>Cr<subscript>32</subscript></entry>
+                     <entry>Cr<subscript>33</subscript></entry>
+                   </row>
+                 </tbody>
+               </tgroup>
+               </informaltable>
+             </para>
+         </formalpara>
+
+         <formalpara>
+           <title>Color Sample Location.</title>
+           <para>
+               <informaltable frame="none">
+               <tgroup cols="7" align="center">
+                 <tbody valign="top">
+                   <row>
+                     <entry></entry>
+                     <entry>0</entry><entry></entry><entry>1</entry><entry></entry>
+                     <entry>2</entry><entry></entry><entry>3</entry>
+                   </row>
+                   <row>
+                     <entry>0</entry>
+                     <entry>YC</entry><entry></entry><entry>YC</entry><entry></entry>
+                     <entry>YC</entry><entry></entry><entry>YC</entry>
+                   </row>
+                   <row>
+                     <entry>1</entry>
+                     <entry>YC</entry><entry></entry><entry>YC</entry><entry></entry>
+                     <entry>YC</entry><entry></entry><entry>YC</entry>
+                   </row>
+                   <row>
+                     <entry>2</entry>
+                     <entry>YC</entry><entry></entry><entry>YC</entry><entry></entry>
+                     <entry>YC</entry><entry></entry><entry>YC</entry>
+                   </row>
+                   <row>
+                     <entry>3</entry>
+                     <entry>YC</entry><entry></entry><entry>YC</entry><entry></entry>
+                     <entry>YC</entry><entry></entry><entry>YC</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 9e77ff3..2f02f94 100644 (file)
--- a/Documentation/DocBook/media/v4l/pixfmt.xml
+++ b/Documentation/DocBook/media/v4l/pixfmt.xml
@@ -1628,6 +1628,8 @@ information.</para>
     &sub-y41p;
     &sub-yuv420;
     &sub-yuv420m;
+    &sub-yuv422m;
+    &sub-yuv444m;
     &sub-yuv410;
     &sub-yuv422p;
     &sub-yuv411p;

diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 8a018c6..1484309 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1191,6 +1191,10 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
        case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break;
        case V4L2_PIX_FMT_YUV420M:      descr = "Planar YUV 4:2:0 (N-C)"; break;
        case V4L2_PIX_FMT_YVU420M:      descr = "Planar YVU 4:2:0 (N-C)"; break;
+       case V4L2_PIX_FMT_YUV422M:      descr = "Planar YUV 4:2:2 (N-C)"; break;
+       case V4L2_PIX_FMT_YVU422M:      descr = "Planar YVU 4:2:2 (N-C)"; break;
+       case V4L2_PIX_FMT_YUV444M:      descr = "Planar YUV 4:4:4 (N-C)"; break;
+       case V4L2_PIX_FMT_YVU444M:      descr = "Planar YVU 4:4:4 (N-C)"; break;
        case V4L2_PIX_FMT_SBGGR8:       descr = "8-bit Bayer BGBG/GRGR"; break;
        case V4L2_PIX_FMT_SGBRG8:       descr = "8-bit Bayer GBGB/RGRG"; break;
        case V4L2_PIX_FMT_SGRBG8:       descr = "8-bit Bayer GRGR/BGBG"; break;

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 14cd5eb..4664584 100644 (file)
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -546,6 +546,10 @@ struct v4l2_pix_format {
 /* three non contiguous planes - Y, Cb, Cr */
 #define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12  YUV420 planar */
 #define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12  YVU420 planar */
+#define V4L2_PIX_FMT_YUV422M v4l2_fourcc('Y', 'M', '1', '6') /* 16  YUV422 planar */
+#define V4L2_PIX_FMT_YVU422M v4l2_fourcc('Y', 'M', '6', '1') /* 16  YVU422 planar */
+#define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4') /* 24  YUV444 planar */
+#define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2') /* 24  YVU444 planar */
 
 /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
 #define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B', 'A', '8', '1') /*  8  BGBG.. GRGR.. */