| <refentry id="V4L2-PIX-FMT-Y12"> |
| <refmeta> |
| <refentrytitle>V4L2_PIX_FMT_Y12 ('Y12 ')</refentrytitle> |
| &manvol; |
| </refmeta> |
| <refnamediv> |
| <refname><constant>V4L2_PIX_FMT_Y12</constant></refname> |
| <refpurpose>Grey-scale image</refpurpose> |
| </refnamediv> |
| <refsect1> |
| <title>Description</title> |
| |
| <para>This is a grey-scale image with a depth of 12 bits per pixel. Pixels |
| are stored in 16-bit words with unused high bits padded with 0. The least |
| significant byte is stored at lower memory addresses (little-endian).</para> |
| |
| <example> |
| <title><constant>V4L2_PIX_FMT_Y12</constant> 4 × 4 |
| pixel image</title> |
| |
| <formalpara> |
| <title>Byte Order.</title> |
| <para>Each cell is one byte. |
| <informaltable frame="none"> |
| <tgroup cols="9" align="center"> |
| <colspec align="left" colwidth="2*" /> |
| <tbody valign="top"> |
| <row> |
| <entry>start + 0:</entry> |
| <entry>Y'<subscript>00low</subscript></entry> |
| <entry>Y'<subscript>00high</subscript></entry> |
| <entry>Y'<subscript>01low</subscript></entry> |
| <entry>Y'<subscript>01high</subscript></entry> |
| <entry>Y'<subscript>02low</subscript></entry> |
| <entry>Y'<subscript>02high</subscript></entry> |
| <entry>Y'<subscript>03low</subscript></entry> |
| <entry>Y'<subscript>03high</subscript></entry> |
| </row> |
| <row> |
| <entry>start + 8:</entry> |
| <entry>Y'<subscript>10low</subscript></entry> |
| <entry>Y'<subscript>10high</subscript></entry> |
| <entry>Y'<subscript>11low</subscript></entry> |
| <entry>Y'<subscript>11high</subscript></entry> |
| <entry>Y'<subscript>12low</subscript></entry> |
| <entry>Y'<subscript>12high</subscript></entry> |
| <entry>Y'<subscript>13low</subscript></entry> |
| <entry>Y'<subscript>13high</subscript></entry> |
| </row> |
| <row> |
| <entry>start + 16:</entry> |
| <entry>Y'<subscript>20low</subscript></entry> |
| <entry>Y'<subscript>20high</subscript></entry> |
| <entry>Y'<subscript>21low</subscript></entry> |
| <entry>Y'<subscript>21high</subscript></entry> |
| <entry>Y'<subscript>22low</subscript></entry> |
| <entry>Y'<subscript>22high</subscript></entry> |
| <entry>Y'<subscript>23low</subscript></entry> |
| <entry>Y'<subscript>23high</subscript></entry> |
| </row> |
| <row> |
| <entry>start + 24:</entry> |
| <entry>Y'<subscript>30low</subscript></entry> |
| <entry>Y'<subscript>30high</subscript></entry> |
| <entry>Y'<subscript>31low</subscript></entry> |
| <entry>Y'<subscript>31high</subscript></entry> |
| <entry>Y'<subscript>32low</subscript></entry> |
| <entry>Y'<subscript>32high</subscript></entry> |
| <entry>Y'<subscript>33low</subscript></entry> |
| <entry>Y'<subscript>33high</subscript></entry> |
| </row> |
| </tbody> |
| </tgroup> |
| </informaltable> |
| </para> |
| </formalpara> |
| </example> |
| </refsect1> |
| </refentry> |
