mirror of https://gitee.com/openkylin/linux.git
82 lines
2.8 KiB
XML
82 lines
2.8 KiB
XML
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<refentry id="V4L2-PIX-FMT-Y16-BE">
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<refmeta>
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<refentrytitle>V4L2_PIX_FMT_Y16_BE ('Y16 ' | (1 << 31))</refentrytitle>
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&manvol;
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</refmeta>
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<refnamediv>
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<refname><constant>V4L2_PIX_FMT_Y16_BE</constant></refname>
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<refpurpose>Grey-scale image</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<para>This is a grey-scale image with a depth of 16 bits per
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pixel. The most significant byte is stored at lower memory addresses
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(big-endian). Note the actual sampling precision may be lower than
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16 bits, for example 10 bits per pixel with values in range 0 to
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1023.</para>
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<example>
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<title><constant>V4L2_PIX_FMT_Y16_BE</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="none">
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<tgroup cols="9" 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>Y'<subscript>00high</subscript></entry>
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<entry>Y'<subscript>00low</subscript></entry>
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<entry>Y'<subscript>01high</subscript></entry>
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<entry>Y'<subscript>01low</subscript></entry>
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<entry>Y'<subscript>02high</subscript></entry>
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<entry>Y'<subscript>02low</subscript></entry>
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<entry>Y'<subscript>03high</subscript></entry>
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<entry>Y'<subscript>03low</subscript></entry>
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</row>
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<row>
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<entry>start + 8:</entry>
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<entry>Y'<subscript>10high</subscript></entry>
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<entry>Y'<subscript>10low</subscript></entry>
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<entry>Y'<subscript>11high</subscript></entry>
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<entry>Y'<subscript>11low</subscript></entry>
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<entry>Y'<subscript>12high</subscript></entry>
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<entry>Y'<subscript>12low</subscript></entry>
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<entry>Y'<subscript>13high</subscript></entry>
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<entry>Y'<subscript>13low</subscript></entry>
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</row>
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<row>
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<entry>start + 16:</entry>
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<entry>Y'<subscript>20high</subscript></entry>
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<entry>Y'<subscript>20low</subscript></entry>
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<entry>Y'<subscript>21high</subscript></entry>
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<entry>Y'<subscript>21low</subscript></entry>
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<entry>Y'<subscript>22high</subscript></entry>
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<entry>Y'<subscript>22low</subscript></entry>
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<entry>Y'<subscript>23high</subscript></entry>
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<entry>Y'<subscript>23low</subscript></entry>
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</row>
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<row>
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<entry>start + 24:</entry>
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<entry>Y'<subscript>30high</subscript></entry>
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<entry>Y'<subscript>30low</subscript></entry>
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<entry>Y'<subscript>31high</subscript></entry>
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<entry>Y'<subscript>31low</subscript></entry>
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<entry>Y'<subscript>32high</subscript></entry>
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<entry>Y'<subscript>32low</subscript></entry>
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<entry>Y'<subscript>33high</subscript></entry>
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<entry>Y'<subscript>33low</subscript></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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