82 lines
2.8 KiB
XML
82 lines
2.8 KiB
XML
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<refentry id="V4L2-PIX-FMT-Z16">
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<refmeta>
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<refentrytitle>V4L2_PIX_FMT_Z16 ('Z16 ')</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_Z16</constant></refname>
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<refpurpose>Interleaved grey-scale image, e.g. from a stereo-pair</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 16-bit format, representing depth data. Each pixel is a
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distance to the respective point in the image coordinates. Distance unit can
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vary and has to be negotiated with the device separately. Each pixel is stored
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in a 16-bit word in the little endian byte order.
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</para>
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<example>
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<title><constant>V4L2_PIX_FMT_Z16</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>Z<subscript>00low</subscript></entry>
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<entry>Z<subscript>00high</subscript></entry>
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<entry>Z<subscript>01low</subscript></entry>
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<entry>Z<subscript>01high</subscript></entry>
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<entry>Z<subscript>02low</subscript></entry>
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<entry>Z<subscript>02high</subscript></entry>
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<entry>Z<subscript>03low</subscript></entry>
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<entry>Z<subscript>03high</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>Z<subscript>10low</subscript></entry>
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<entry>Z<subscript>10high</subscript></entry>
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<entry>Z<subscript>11low</subscript></entry>
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<entry>Z<subscript>11high</subscript></entry>
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<entry>Z<subscript>12low</subscript></entry>
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<entry>Z<subscript>12high</subscript></entry>
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<entry>Z<subscript>13low</subscript></entry>
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<entry>Z<subscript>13high</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>Z<subscript>20low</subscript></entry>
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<entry>Z<subscript>20high</subscript></entry>
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<entry>Z<subscript>21low</subscript></entry>
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<entry>Z<subscript>21high</subscript></entry>
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<entry>Z<subscript>22low</subscript></entry>
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<entry>Z<subscript>22high</subscript></entry>
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<entry>Z<subscript>23low</subscript></entry>
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<entry>Z<subscript>23high</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>Z<subscript>30low</subscript></entry>
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<entry>Z<subscript>30high</subscript></entry>
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<entry>Z<subscript>31low</subscript></entry>
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<entry>Z<subscript>31high</subscript></entry>
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<entry>Z<subscript>32low</subscript></entry>
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<entry>Z<subscript>32high</subscript></entry>
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<entry>Z<subscript>33low</subscript></entry>
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<entry>Z<subscript>33high</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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