| Message ID | 20090326150538.GB28126@emlix.com (mailing list archive) |
|---|---|
| State | RFC |
| Delegated to: | Douglas Landgraf |
| Headers | show |
On Thu, 2009-03-26 at 16:05 +0100, Daniel Glöckner wrote: > This patch adds the planar YUV 4:4:4 format to the v4l2 specification. > > Signed-off-by: Daniel Glöckner <dg@emlix.com> > > 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> s/on/one/ Regards, Andy > + <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; > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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;
This patch adds the planar YUV 4:4:4 format to the v4l2 specification. Signed-off-by: Daniel Glöckner <dg@emlix.com> -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html