| Mauro Carvalho Chehab | 8e080c2 | 2009-09-13 22:16:04 -0300 | [diff] [blame] | 1 | <refentry id="V4L2-PIX-FMT-Y16"> |
| 2 | <refmeta> |
| 3 | <refentrytitle>V4L2_PIX_FMT_Y16 ('Y16 ')</refentrytitle> |
| 4 | &manvol; |
| 5 | </refmeta> |
| 6 | <refnamediv> |
| 7 | <refname><constant>V4L2_PIX_FMT_Y16</constant></refname> |
| 8 | <refpurpose>Grey-scale image</refpurpose> |
| 9 | </refnamediv> |
| 10 | <refsect1> |
| 11 | <title>Description</title> |
| 12 | |
| 13 | <para>This is a grey-scale image with a depth of 16 bits per |
| 14 | pixel. The least significant byte is stored at lower memory addresses |
| 15 | (little-endian). Note the actual sampling precision may be lower than |
| 16 | 16 bits, for example 10 bits per pixel with values in range 0 to |
| 17 | 1023.</para> |
| 18 | |
| 19 | <example> |
| 20 | <title><constant>V4L2_PIX_FMT_Y16</constant> 4 × 4 |
| 21 | pixel image</title> |
| 22 | |
| 23 | <formalpara> |
| 24 | <title>Byte Order.</title> |
| 25 | <para>Each cell is one byte. |
| 26 | <informaltable frame="none"> |
| 27 | <tgroup cols="9" align="center"> |
| 28 | <colspec align="left" colwidth="2*" /> |
| 29 | <tbody valign="top"> |
| 30 | <row> |
| 31 | <entry>start + 0:</entry> |
| 32 | <entry>Y'<subscript>00low</subscript></entry> |
| 33 | <entry>Y'<subscript>00high</subscript></entry> |
| 34 | <entry>Y'<subscript>01low</subscript></entry> |
| 35 | <entry>Y'<subscript>01high</subscript></entry> |
| 36 | <entry>Y'<subscript>02low</subscript></entry> |
| 37 | <entry>Y'<subscript>02high</subscript></entry> |
| 38 | <entry>Y'<subscript>03low</subscript></entry> |
| 39 | <entry>Y'<subscript>03high</subscript></entry> |
| 40 | </row> |
| 41 | <row> |
| 42 | <entry>start + 8:</entry> |
| 43 | <entry>Y'<subscript>10low</subscript></entry> |
| 44 | <entry>Y'<subscript>10high</subscript></entry> |
| 45 | <entry>Y'<subscript>11low</subscript></entry> |
| 46 | <entry>Y'<subscript>11high</subscript></entry> |
| 47 | <entry>Y'<subscript>12low</subscript></entry> |
| 48 | <entry>Y'<subscript>12high</subscript></entry> |
| 49 | <entry>Y'<subscript>13low</subscript></entry> |
| 50 | <entry>Y'<subscript>13high</subscript></entry> |
| 51 | </row> |
| 52 | <row> |
| 53 | <entry>start + 16:</entry> |
| 54 | <entry>Y'<subscript>20low</subscript></entry> |
| 55 | <entry>Y'<subscript>20high</subscript></entry> |
| 56 | <entry>Y'<subscript>21low</subscript></entry> |
| 57 | <entry>Y'<subscript>21high</subscript></entry> |
| 58 | <entry>Y'<subscript>22low</subscript></entry> |
| 59 | <entry>Y'<subscript>22high</subscript></entry> |
| 60 | <entry>Y'<subscript>23low</subscript></entry> |
| 61 | <entry>Y'<subscript>23high</subscript></entry> |
| 62 | </row> |
| 63 | <row> |
| 64 | <entry>start + 24:</entry> |
| 65 | <entry>Y'<subscript>30low</subscript></entry> |
| 66 | <entry>Y'<subscript>30high</subscript></entry> |
| 67 | <entry>Y'<subscript>31low</subscript></entry> |
| 68 | <entry>Y'<subscript>31high</subscript></entry> |
| 69 | <entry>Y'<subscript>32low</subscript></entry> |
| 70 | <entry>Y'<subscript>32high</subscript></entry> |
| 71 | <entry>Y'<subscript>33low</subscript></entry> |
| 72 | <entry>Y'<subscript>33high</subscript></entry> |
| 73 | </row> |
| 74 | </tbody> |
| 75 | </tgroup> |
| 76 | </informaltable> |
| 77 | </para> |
| 78 | </formalpara> |
| 79 | </example> |
| 80 | </refsect1> |
| 81 | </refentry> |
| 82 | |
| 83 | <!-- |
| 84 | Local Variables: |
| 85 | mode: sgml |
| 86 | sgml-parent-document: "pixfmt.sgml" |
| 87 | indent-tabs-mode: nil |
| 88 | End: |
| 89 | --> |