This patch adds the planar YUV 4:4:4 format to the v4l2 specification.
Signed-off-by: Daniel Glöckner <[email protected]>
diff -r 55df63b82fef -r bd23aedbd597 v4l2-spec/Makefile
--- a/v4l2-spec/Makefile Thu Mar 26 09:13:40 2009 +0100
+++ b/v4l2-spec/Makefile Thu Mar 26 14:06:09 2009 +0100
@@ -48,6 +48,7 @@
pixfmt-yuv411p.sgml \
pixfmt-yuv420.sgml \
pixfmt-yuv422p.sgml \
+ pixfmt-yuv444p.sgml \
pixfmt-yuyv.sgml \
pixfmt-yvyu.sgml \
pixfmt.sgml \
diff -r 55df63b82fef -r bd23aedbd597 v4l2-spec/pixfmt-yuv444p.sgml
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/v4l2-spec/pixfmt-yuv444p.sgml Thu Mar 26 14:06:09 2009 +0100
@@ -0,0 +1,171 @@
+ <refentry id="V4L2-PIX-FMT-YUV444P">
+ <refmeta>
+ <refentrytitle>V4L2_PIX_FMT_YUV444P ('444P')</refentrytitle>
+ &manvol;
+ </refmeta>
+ <refnamediv>
+ <refname><constant>V4L2_PIX_FMT_YUV444P</constant></refname>
+ <refpurpose>Format with full horizontal and vertical chroma resolution,
+also known as YUV 4:4:4. Planar layout</refpurpose>
+ </refnamediv>
+ <refsect1>
+ <title>Description</title>
+
+ <para>This format is not commonly used. The three components are
+separated into three sub-images or planes. The Y plane is first. The Cb plane
+immediately follows the Y plane in memory. Following the Cb plane is the Cr
+plane. All planes have on byte per pixel.</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. In other
+words, one Cx row (including padding) is exactly as long as one Y row
+(including padding).</para>
+
+ <example>
+ <title><constant>V4L2_PIX_FMT_YUV444P</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>start + 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>start + 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>start + 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>start + 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>start + 16:</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>start + 20:</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>start + 24:</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>start + 28:</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>
+ <row>
+ <entry>start + 32:</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>start + 36:</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>start + 40:</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>start + 44:</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="5" align="center">
+ <tbody valign="top">
+ <row>
+ <entry></entry>
+ <entry>0</entry><entry>1</entry>
+ <entry>2</entry><entry>3</entry>
+ </row>
+ <row>
+ <entry>0</entry>
+ <entry>Y/C</entry><entry>Y/C</entry>
+ <entry>Y/C</entry><entry>Y/C</entry>
+ </row>
+ <row>
+ <entry>1</entry>
+ <entry>Y/C</entry><entry>Y/C</entry>
+ <entry>Y/C</entry><entry>Y/C</entry>
+ </row>
+ <row>
+ <entry>2</entry>
+ <entry>Y/C</entry><entry>Y/C</entry>
+ <entry>Y/C</entry><entry>Y/C</entry>
+ </row>
+ <row>
+ <entry>3</entry>
+ <entry>Y/C</entry><entry>Y/C</entry>
+ <entry>Y/C</entry><entry>Y/C</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </informaltable>
+ </para>
+ </formalpara>
+ </example>
+ </refsect1>
+ </refentry>
+
+ <!--
+Local Variables:
+mode: sgml
+sgml-parent-document: "pixfmt.sgml"
+indent-tabs-mode: nil
+End:
+ -->
diff -r 55df63b82fef -r bd23aedbd597 v4l2-spec/pixfmt.sgml
--- a/v4l2-spec/pixfmt.sgml Thu Mar 26 09:13:40 2009 +0100
+++ b/v4l2-spec/pixfmt.sgml Thu Mar 26 14:06:09 2009 +0100
@@ -596,6 +596,7 @@
&sub-y41p;
&sub-yuv420;
&sub-yuv410;
+ &sub-yuv444p;
&sub-yuv422p;
&sub-yuv411p;
&sub-nv12;
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