mirror of https://gitee.com/openkylin/linux.git
100 lines
3.6 KiB
XML
100 lines
3.6 KiB
XML
<refentry id="pixfmt-srggb10p">
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<refmeta>
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<refentrytitle>V4L2_PIX_FMT_SRGGB10P ('pRAA'),
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V4L2_PIX_FMT_SGRBG10P ('pgAA'),
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V4L2_PIX_FMT_SGBRG10P ('pGAA'),
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V4L2_PIX_FMT_SBGGR10P ('pBAA'),
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</refentrytitle>
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&manvol;
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</refmeta>
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<refnamediv>
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<refname id="V4L2-PIX-FMT-SRGGB10P"><constant>V4L2_PIX_FMT_SRGGB10P</constant></refname>
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<refname id="V4L2-PIX-FMT-SGRBG10P"><constant>V4L2_PIX_FMT_SGRBG10P</constant></refname>
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<refname id="V4L2-PIX-FMT-SGBRG10P"><constant>V4L2_PIX_FMT_SGBRG10P</constant></refname>
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<refname id="V4L2-PIX-FMT-SBGGR10P"><constant>V4L2_PIX_FMT_SBGGR10P</constant></refname>
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<refpurpose>10-bit packed Bayer formats</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<para>These four pixel formats are packed raw sRGB /
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Bayer formats with 10 bits per colour. Every four consecutive
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colour components are packed into 5 bytes. Each of the first 4
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bytes contain the 8 high order bits of the pixels, and the
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fifth byte contains the two least significants bits of each
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pixel, in the same order.</para>
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<para>Each n-pixel row contains n/2 green samples and n/2 blue
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or red samples, with alternating green-red and green-blue
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rows. They are conventionally described as GRGR... BGBG...,
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RGRG... GBGB..., etc. Below is an example of one of these
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formats:</para>
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<example>
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<title><constant>V4L2_PIX_FMT_SBGGR10P</constant> 4 × 4
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pixel image</title>
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<formalpara>
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<title>Byte Order.</title>
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<para>Each cell is one byte.
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<informaltable frame="topbot" colsep="1" rowsep="1">
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<tgroup cols="5" align="center">
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<colspec align="left" colwidth="2*" />
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<tbody valign="top">
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<row>
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<entry>start + 0:</entry>
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<entry>B<subscript>00high</subscript></entry>
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<entry>G<subscript>01high</subscript></entry>
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<entry>B<subscript>02high</subscript></entry>
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<entry>G<subscript>03high</subscript></entry>
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<entry>B<subscript>00low</subscript>(bits 7--6)
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G<subscript>01low</subscript>(bits 5--4)
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B<subscript>02low</subscript>(bits 3--2)
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G<subscript>03low</subscript>(bits 1--0)
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</entry>
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</row>
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<row>
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<entry>start + 5:</entry>
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<entry>G<subscript>10high</subscript></entry>
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<entry>R<subscript>11high</subscript></entry>
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<entry>G<subscript>12high</subscript></entry>
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<entry>R<subscript>13high</subscript></entry>
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<entry>G<subscript>10low</subscript>(bits 7--6)
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R<subscript>11low</subscript>(bits 5--4)
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G<subscript>12low</subscript>(bits 3--2)
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R<subscript>13low</subscript>(bits 1--0)
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</entry>
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</row>
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<row>
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<entry>start + 10:</entry>
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<entry>B<subscript>20high</subscript></entry>
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<entry>G<subscript>21high</subscript></entry>
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<entry>B<subscript>22high</subscript></entry>
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<entry>G<subscript>23high</subscript></entry>
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<entry>B<subscript>20low</subscript>(bits 7--6)
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G<subscript>21low</subscript>(bits 5--4)
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B<subscript>22low</subscript>(bits 3--2)
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G<subscript>23low</subscript>(bits 1--0)
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</entry>
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</row>
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<row>
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<entry>start + 15:</entry>
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<entry>G<subscript>30high</subscript></entry>
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<entry>R<subscript>31high</subscript></entry>
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<entry>G<subscript>32high</subscript></entry>
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<entry>R<subscript>33high</subscript></entry>
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<entry>G<subscript>30low</subscript>(bits 7--6)
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R<subscript>31low</subscript>(bits 5--4)
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G<subscript>32low</subscript>(bits 3--2)
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R<subscript>33low</subscript>(bits 1--0)
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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</para>
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</formalpara>
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</example>
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</refsect1>
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</refentry>
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