* [PATCH] v4l: Add YUV 4:2:2 and YUV 4:4:4 tri-planar non-contiguous formats
@ 2015-11-14 13:26 Laurent Pinchart
2015-11-14 13:50 ` Hans Verkuil
0 siblings, 1 reply; 3+ messages in thread
From: Laurent Pinchart @ 2015-11-14 13:26 UTC (permalink / raw)
To: linux-media
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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>
---
Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml | 159 +++++++++++++++++++
Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml | 171 +++++++++++++++++++++
Documentation/DocBook/media/v4l/pixfmt-yvu422m.xml | 159 +++++++++++++++++++
Documentation/DocBook/media/v4l/pixfmt-yvu444m.xml | 171 +++++++++++++++++++++
Documentation/DocBook/media/v4l/pixfmt.xml | 4 +
drivers/media/v4l2-core/v4l2-ioctl.c | 4 +
include/uapi/linux/videodev2.h | 4 +
7 files changed, 672 insertions(+)
create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml
create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yvu422m.xml
create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yvu444m.xml
Hello,
The driver using those formats should follow in the not too distant future,
but I'd appreciate getting feedback on the definitions already.
diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
new file mode 100644
index 000000000000..f4d8d74e7f74
--- /dev/null
+++ b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
@@ -0,0 +1,159 @@
+ <refentry id="V4L2-PIX-FMT-YUV422M">
+ <refmeta>
+ <refentrytitle>V4L2_PIX_FMT_YUV422M ('YM16')</refentrytitle>
+ &manvol;
+ </refmeta>
+ <refnamediv>
+ <refname> <constant>V4L2_PIX_FMT_YUV422M</constant></refname>
+ <refpurpose>Planar formats with ½ horizontal resolution, also
+ known as YUV 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.
+
+The Y plane is first. The Y plane has one byte per pixel. 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>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> is 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 × 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 + 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 + 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 + 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 + 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 + 0:</entry>
+ <entry>Cb<subscript>00</subscript></entry>
+ <entry>Cb<subscript>01</subscript></entry>
+ </row>
+ <row>
+ <entry>start1 + 2:</entry>
+ <entry>Cb<subscript>10</subscript></entry>
+ <entry>Cb<subscript>11</subscript></entry>
+ </row>
+ <row>
+ <entry>start1 + 4:</entry>
+ <entry>Cb<subscript>20</subscript></entry>
+ <entry>Cb<subscript>21</subscript></entry>
+ </row>
+ <row>
+ <entry>start1 + 6:</entry>
+ <entry>Cb<subscript>30</subscript></entry>
+ <entry>Cb<subscript>31</subscript></entry>
+ </row>
+ <row><entry></entry></row>
+ <row>
+ <entry>start2 + 0:</entry>
+ <entry>Cr<subscript>00</subscript></entry>
+ <entry>Cr<subscript>01</subscript></entry>
+ </row>
+ <row>
+ <entry>start2 + 2:</entry>
+ <entry>Cr<subscript>10</subscript></entry>
+ <entry>Cr<subscript>11</subscript></entry>
+ </row>
+ <row>
+ <entry>start2 + 4:</entry>
+ <entry>Cr<subscript>20</subscript></entry>
+ <entry>Cr<subscript>21</subscript></entry>
+ </row>
+ <row>
+ <entry>start2 + 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
index 000000000000..346739e48c79
--- /dev/null
+++ b/Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml
@@ -0,0 +1,171 @@
+ <refentry id="V4L2-PIX-FMT-YUV444M">
+ <refmeta>
+ <refentrytitle>V4L2_PIX_FMT_YUV444M ('YM24')</refentrytitle>
+ &manvol;
+ </refmeta>
+ <refnamediv>
+ <refname> <constant>V4L2_PIX_FMT_YUV444M</constant></refname>
+ <refpurpose>Planar formats with full horizontal resolution, also
+ known as YUV 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.
+
+The Y plane is first. The Y plane has one byte per pixel. 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>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> is 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 × 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 + 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 + 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 + 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 + 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 + 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 + 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 + 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 + 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 + 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 + 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 + 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 + 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-yvu422m.xml b/Documentation/DocBook/media/v4l/pixfmt-yvu422m.xml
new file mode 100644
index 000000000000..3c8ea6cbedf8
--- /dev/null
+++ b/Documentation/DocBook/media/v4l/pixfmt-yvu422m.xml
@@ -0,0 +1,159 @@
+ <refentry id="V4L2-PIX-FMT-YVU422M">
+ <refmeta>
+ <refentrytitle>V4L2_PIX_FMT_YVU422M ('YM61')</refentrytitle>
+ &manvol;
+ </refmeta>
+ <refnamediv>
+ <refname> <constant>V4L2_PIX_FMT_YVU422M</constant></refname>
+ <refpurpose>Planar formats with ½ horizontal resolution, also
+ known as 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.
+
+The Y plane is first. The Y plane has one byte per pixel. The Cr data
+constitutes the second plane which is half the width of the Y plane (and of the
+image). Each Cr belongs to two pixels. For example,
+Cb<subscript>0</subscript> belongs to Y'<subscript>00</subscript>,
+Y'<subscript>01</subscript>. The Cb data, just like the Cr plane, is
+in the third plane. </para>
+
+ <para>If the Y plane has pad bytes after each row, then the Cr
+and Cb 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_YVU422M</constant> is 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_YVU422M</constant> 4 × 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 + 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 + 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 + 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 + 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 + 0:</entry>
+ <entry>Cr<subscript>00</subscript></entry>
+ <entry>Cr<subscript>01</subscript></entry>
+ </row>
+ <row>
+ <entry>start1 + 2:</entry>
+ <entry>Cr<subscript>10</subscript></entry>
+ <entry>Cr<subscript>11</subscript></entry>
+ </row>
+ <row>
+ <entry>start1 + 4:</entry>
+ <entry>Cr<subscript>20</subscript></entry>
+ <entry>Cr<subscript>21</subscript></entry>
+ </row>
+ <row>
+ <entry>start1 + 6:</entry>
+ <entry>Cr<subscript>30</subscript></entry>
+ <entry>Cr<subscript>31</subscript></entry>
+ </row>
+ <row><entry></entry></row>
+ <row>
+ <entry>start2 + 0:</entry>
+ <entry>Cb<subscript>00</subscript></entry>
+ <entry>Cb<subscript>01</subscript></entry>
+ </row>
+ <row>
+ <entry>start2 + 2:</entry>
+ <entry>Cb<subscript>10</subscript></entry>
+ <entry>Cb<subscript>11</subscript></entry>
+ </row>
+ <row>
+ <entry>start2 + 4:</entry>
+ <entry>Cb<subscript>20</subscript></entry>
+ <entry>Cb<subscript>21</subscript></entry>
+ </row>
+ <row>
+ <entry>start2 + 6:</entry>
+ <entry>Cb<subscript>30</subscript></entry>
+ <entry>Cb<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-yvu444m.xml b/Documentation/DocBook/media/v4l/pixfmt-yvu444m.xml
new file mode 100644
index 000000000000..25147ac63334
--- /dev/null
+++ b/Documentation/DocBook/media/v4l/pixfmt-yvu444m.xml
@@ -0,0 +1,171 @@
+ <refentry id="V4L2-PIX-FMT-YVU444M">
+ <refmeta>
+ <refentrytitle>V4L2_PIX_FMT_YVU444M ('YM42')</refentrytitle>
+ &manvol;
+ </refmeta>
+ <refnamediv>
+ <refname> <constant>V4L2_PIX_FMT_YVU444M</constant></refname>
+ <refpurpose>Planar formats with full horizontal resolution, also
+ known as 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.
+
+The Y plane is first. The Y plane has one byte per pixel. The Cr data
+constitutes the second plane which is the same width and height as the Y plane
+(and as the image). The Cb data, just like the Cr plane, is in the third plane.
+</para>
+
+ <para>If the Y plane has pad bytes after each row, then the Cr
+and Cb planes have the same number of pad bytes after their rows.</para>
+
+ <para><constant>V4L2_PIX_FMT_YVU444M</constant> is 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_YVU444M</constant> 4 × 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 + 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 + 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 + 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 + 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 + 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>start1 + 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>start1 + 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>start1 + 12:</entry>
+ <entry>Cr<subscript>20</subscript></entry>
+ <entry>Cr<subscript>21</subscript></entry>
+ <entry>Cr<subscript>32</subscript></entry>
+ <entry>Cr<subscript>33</subscript></entry>
+ </row>
+ <row><entry></entry></row>
+ <row>
+ <entry>start2 + 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>start2 + 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>start2 + 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>start2 + 12:</entry>
+ <entry>Cb<subscript>30</subscript></entry>
+ <entry>Cb<subscript>31</subscript></entry>
+ <entry>Cb<subscript>32</subscript></entry>
+ <entry>Cb<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 d871245d2973..fa26cb37a331 100644
--- a/Documentation/DocBook/media/v4l/pixfmt.xml
+++ b/Documentation/DocBook/media/v4l/pixfmt.xml
@@ -1629,6 +1629,10 @@ information.</para>
&sub-yuv420;
&sub-yuv420m;
&sub-yvu420m;
+ &sub-yuv422m;
+ &sub-yvu422m;
+ &sub-yuv444m;
+ &sub-yvu444m;
&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 7486af2c8ae4..571b6ed43e07 100644
--- 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 05830dc9260c..b37f75c75976 100644
--- 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.. */
--
Regards,
Laurent Pinchart
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] v4l: Add YUV 4:2:2 and YUV 4:4:4 tri-planar non-contiguous formats
2015-11-14 13:26 [PATCH] v4l: Add YUV 4:2:2 and YUV 4:4:4 tri-planar non-contiguous formats Laurent Pinchart
@ 2015-11-14 13:50 ` Hans Verkuil
2016-01-11 3:09 ` Laurent Pinchart
0 siblings, 1 reply; 3+ messages in thread
From: Hans Verkuil @ 2015-11-14 13:50 UTC (permalink / raw)
To: Laurent Pinchart, linux-media
On 11/14/2015 02:26 PM, Laurent Pinchart wrote:
> From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
>
> 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>
> ---
> Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml | 159 +++++++++++++++++++
> Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml | 171 +++++++++++++++++++++
> Documentation/DocBook/media/v4l/pixfmt-yvu422m.xml | 159 +++++++++++++++++++
> Documentation/DocBook/media/v4l/pixfmt-yvu444m.xml | 171 +++++++++++++++++++++
> Documentation/DocBook/media/v4l/pixfmt.xml | 4 +
> drivers/media/v4l2-core/v4l2-ioctl.c | 4 +
> include/uapi/linux/videodev2.h | 4 +
> 7 files changed, 672 insertions(+)
> create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
> create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml
> create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yvu422m.xml
> create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yvu444m.xml
>
> Hello,
>
> The driver using those formats should follow in the not too distant future,
> but I'd appreciate getting feedback on the definitions already.
Looks good, but I would combine yuv422m and yvu422m, and do the same for the 444m
variants. It's overkill to split this up.
>
> diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
> new file mode 100644
> index 000000000000..f4d8d74e7f74
> --- /dev/null
> +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
> @@ -0,0 +1,159 @@
> + <refentry id="V4L2-PIX-FMT-YUV422M">
> + <refmeta>
> + <refentrytitle>V4L2_PIX_FMT_YUV422M ('YM16')</refentrytitle>
> + &manvol;
> + </refmeta>
> + <refnamediv>
> + <refname> <constant>V4L2_PIX_FMT_YUV422M</constant></refname>
> + <refpurpose>Planar formats with ½ horizontal resolution, also
> + known as YUV 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.
No space needed after 'sub-'.
Regards,
Hans
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] v4l: Add YUV 4:2:2 and YUV 4:4:4 tri-planar non-contiguous formats
2015-11-14 13:50 ` Hans Verkuil
@ 2016-01-11 3:09 ` Laurent Pinchart
0 siblings, 0 replies; 3+ messages in thread
From: Laurent Pinchart @ 2016-01-11 3:09 UTC (permalink / raw)
To: Hans Verkuil; +Cc: linux-media
Hi Hans,
Thank you for the review.
On Saturday 14 November 2015 14:50:40 Hans Verkuil wrote:
> On 11/14/2015 02:26 PM, Laurent Pinchart wrote:
> > From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> >
> > 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>
> > ---
> >
> > Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml | 159 ++++++++++++++++
> > Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml | 171 ++++++++++++++++
> > Documentation/DocBook/media/v4l/pixfmt-yvu422m.xml | 159 ++++++++++++++++
> > Documentation/DocBook/media/v4l/pixfmt-yvu444m.xml | 171 ++++++++++++++++
> > Documentation/DocBook/media/v4l/pixfmt.xml | 4 +
> > drivers/media/v4l2-core/v4l2-ioctl.c | 4 +
> > include/uapi/linux/videodev2.h | 4 +
> > 7 files changed, 672 insertions(+)
> > create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
> > create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml
> > create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yvu422m.xml
> > create mode 100644 Documentation/DocBook/media/v4l/pixfmt-yvu444m.xml
> >
> > Hello,
> >
> > The driver using those formats should follow in the not too distant
> > future, but I'd appreciate getting feedback on the definitions already.
>
> Looks good, but I would combine yuv422m and yvu422m, and do the same for the
> 444m variants. It's overkill to split this up.
The reason I've split them is that yuv420m and yvu420m are split. I can
combine them.
> > diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
> > b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml new file mode 100644
> > index 000000000000..f4d8d74e7f74
> > --- /dev/null
> > +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml
> > @@ -0,0 +1,159 @@
> > + <refentry id="V4L2-PIX-FMT-YUV422M">
> > + <refmeta>
> > + <refentrytitle>V4L2_PIX_FMT_YUV422M ('YM16')</refentrytitle>
> > + &manvol;
> > + </refmeta>
> > + <refnamediv>
> > + <refname> <constant>V4L2_PIX_FMT_YUV422M</constant></refname>
> > + <refpurpose>Planar formats with ½ horizontal resolution, also
> > + known as YUV 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.
>
> No space needed after 'sub-'.
Will fix.
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-11-14 13:26 [PATCH] v4l: Add YUV 4:2:2 and YUV 4:4:4 tri-planar non-contiguous formats Laurent Pinchart
2015-11-14 13:50 ` Hans Verkuil
2016-01-11 3:09 ` Laurent Pinchart
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