projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 39187e17 LP |
1 | <refentry> |
| 2 | <refmeta> | |
| 3 | <refentrytitle>V4L2_PIX_FMT_SRGGB12 ('RG12'), | |
| 4 | V4L2_PIX_FMT_SGRBG12 ('BA12'), | |
| 5 | V4L2_PIX_FMT_SGBRG12 ('GB12'), | |
| 6 | V4L2_PIX_FMT_SBGGR12 ('BG12'), | |
| 7 | </refentrytitle> | |
| 8 | &manvol; | |
| 9 | </refmeta> | |
| 10 | <refnamediv> | |
| 11 | <refname id="V4L2-PIX-FMT-SRGGB12"><constant>V4L2_PIX_FMT_SRGGB12</constant></refname> | |
| 12 | <refname id="V4L2-PIX-FMT-SGRBG12"><constant>V4L2_PIX_FMT_SGRBG12</constant></refname> | |
| 13 | <refname id="V4L2-PIX-FMT-SGBRG12"><constant>V4L2_PIX_FMT_SGBRG12</constant></refname> | |
| 14 | <refname id="V4L2-PIX-FMT-SBGGR12"><constant>V4L2_PIX_FMT_SBGGR12</constant></refname> | |
| 15 | <refpurpose>12-bit Bayer formats expanded to 16 bits</refpurpose> | |
| 16 | </refnamediv> | |
| 17 | <refsect1> | |
| 18 | <title>Description</title> | |
| 19 | ||
| 20 | <para>The following four pixel formats are raw sRGB / Bayer formats with | |
| 21 | 12 bits per colour. Each colour component is stored in a 16-bit word, with 6 | |
| 22 | unused high bits filled with zeros. Each n-pixel row contains n/2 green samples | |
| 23 | and n/2 blue or red samples, with alternating red and blue rows. Bytes are | |
| 24 | stored in memory in little endian order. They are conventionally described | |
| 25 | as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an example of one of these | |
| 26 | formats</para> | |
| 27 | ||
| 28 | <example> | |
| 29 | <title><constant>V4L2_PIX_FMT_SBGGR12</constant> 4 × 4 | |
| 30 | pixel image</title> | |
| 31 | ||
| 32 | <formalpara> | |
| 33 | <title>Byte Order.</title> | |
| 34 | <para>Each cell is one byte, high 6 bits in high bytes are 0. | |
| 35 | <informaltable frame="none"> | |
| 36 | <tgroup cols="5" align="center"> | |
| 37 | <colspec align="left" colwidth="2*" /> | |
| 38 | <tbody valign="top"> | |
| 39 | <row> | |
| 40 | <entry>start + 0:</entry> | |
| 41 | <entry>B<subscript>00low</subscript></entry> | |
| 42 | <entry>B<subscript>00high</subscript></entry> | |
| 43 | <entry>G<subscript>01low</subscript></entry> | |
| 44 | <entry>G<subscript>01high</subscript></entry> | |
| 45 | <entry>B<subscript>02low</subscript></entry> | |
| 46 | <entry>B<subscript>02high</subscript></entry> | |
| 47 | <entry>G<subscript>03low</subscript></entry> | |
| 48 | <entry>G<subscript>03high</subscript></entry> | |
| 49 | </row> | |
| 50 | <row> | |
| 51 | <entry>start + 8:</entry> | |
| 52 | <entry>G<subscript>10low</subscript></entry> | |
| 53 | <entry>G<subscript>10high</subscript></entry> | |
| 54 | <entry>R<subscript>11low</subscript></entry> | |
| 55 | <entry>R<subscript>11high</subscript></entry> | |
| 56 | <entry>G<subscript>12low</subscript></entry> | |
| 57 | <entry>G<subscript>12high</subscript></entry> | |
| 58 | <entry>R<subscript>13low</subscript></entry> | |
| 59 | <entry>R<subscript>13high</subscript></entry> | |
| 60 | </row> | |
| 61 | <row> | |
| 62 | <entry>start + 16:</entry> | |
| 63 | <entry>B<subscript>20low</subscript></entry> | |
| 64 | <entry>B<subscript>20high</subscript></entry> | |
| 65 | <entry>G<subscript>21low</subscript></entry> | |
| 66 | <entry>G<subscript>21high</subscript></entry> | |
| 67 | <entry>B<subscript>22low</subscript></entry> | |
| 68 | <entry>B<subscript>22high</subscript></entry> | |
| 69 | <entry>G<subscript>23low</subscript></entry> | |
| 70 | <entry>G<subscript>23high</subscript></entry> | |
| 71 | </row> | |
| 72 | <row> | |
| 73 | <entry>start + 24:</entry> | |
| 74 | <entry>G<subscript>30low</subscript></entry> | |
| 75 | <entry>G<subscript>30high</subscript></entry> | |
| 76 | <entry>R<subscript>31low</subscript></entry> | |
| 77 | <entry>R<subscript>31high</subscript></entry> | |
| 78 | <entry>G<subscript>32low</subscript></entry> | |
| 79 | <entry>G<subscript>32high</subscript></entry> | |
| 80 | <entry>R<subscript>33low</subscript></entry> | |
| 81 | <entry>R<subscript>33high</subscript></entry> | |
| 82 | </row> | |
| 83 | </tbody> | |
| 84 | </tgroup> | |
| 85 | </informaltable> | |
| 86 | </para> | |
| 87 | </formalpara> | |
| 88 | </example> | |
| 89 | </refsect1> | |
| 90 | </refentry> |