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Diffstat (limited to 'Documentation/DocBook')
| -rw-r--r-- | Documentation/DocBook/v4l/pixfmt-srggb12.xml | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/Documentation/DocBook/v4l/pixfmt-srggb12.xml b/Documentation/DocBook/v4l/pixfmt-srggb12.xml new file mode 100644 index 000000000000..9ba4fb690bc0 --- /dev/null +++ b/Documentation/DocBook/v4l/pixfmt-srggb12.xml | |||
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| 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> | ||