[PATCH v3 14/33] v4l: Add DPCM compressed formats

Sakari Ailus
2012-02-20T01:58:47Z

Add three other colour orders for 10-bit to 8-bit DPCM compressed formats.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
---
Documentation/DocBook/media/v4l/pixfmt-srggb10.xml | 2 +-
.../DocBook/media/v4l/pixfmt-srggb10dpcm8.xml | 29 ++++++++++++++++++++
Documentation/DocBook/media/v4l/pixfmt.xml | 1 +
include/linux/videodev2.h | 3 ++
4 files changed, 34 insertions(+), 1 deletions(-)
create mode 100644 Documentation/DocBook/media/v4l/pixfmt-srggb10dpcm8.xml

diff --git a/Documentation/DocBook/media/v4l/pixfmt-srggb10.xml b/Documentation/DocBook/media/v4l/pixfmt-srggb10.xml
index 7b27409..c1c62a9 100644
--- a/Documentation/DocBook/media/v4l/pixfmt-srggb10.xml
+++ b/Documentation/DocBook/media/v4l/pixfmt-srggb10.xml
@@ -1,4 +1,4 @@
- <refentry>
+ <refentry id="pixfmt-srggb10">
<refmeta>
<refentrytitle>V4L2_PIX_FMT_SRGGB10 ('RG10'),
V4L2_PIX_FMT_SGRBG10 ('BA10'),
diff --git a/Documentation/DocBook/media/v4l/pixfmt-srggb10dpcm8.xml b/Documentation/DocBook/media/v4l/pixfmt-srggb10dpcm8.xml
new file mode 100644
index 0000000..40455f1
--- /dev/null
+++ b/Documentation/DocBook/media/v4l/pixfmt-srggb10dpcm8.xml
@@ -0,0 +1,29 @@
+ <refentry>
+ <refmeta>
+ <refentrytitle>
+ V4L2_PIX_FMT_SRGGB10DPCM8 ('bBA8'),
+ V4L2_PIX_FMT_SGBRG10DPCM8 ('bGA8'),
+ V4L2_PIX_FMT_SGRBG10DPCM8 ('BD10'),
+ V4L2_PIX_FMT_SBGGR10DPCM8 ('bRA8'),
+ </refentrytitle>
+ &manvol;
+ </refmeta>
+ <refnamediv>
+ <refname id="V4L2-PIX-FMT-SRGGB10DPCM8"><constant>V4L2_PIX_FMT_SRGGB10DPCM8</constant></refname>
+ <refname id="V4L2-PIX-FMT-SGRBG10DPCM8"><constant>V4L2_PIX_FMT_SGRBG10DPCM8</constant></refname>
+ <refname id="V4L2-PIX-FMT-SGBRG10DPCM8"><constant>V4L2_PIX_FMT_SGBRG10DPCM8</constant></refname>
+ <refname id="V4L2-PIX-FMT-SBGGR10DPCM8"><constant>V4L2_PIX_FMT_SBGGR10DPCM8</constant></refname>
+ <refpurpose>10-bit Bayer formats compressed to 8 bits</refpurpose>
+ </refnamediv>
+ <refsect1>
+ Description
+
+ The following four pixel formats are raw sRGB / Bayer formats
+ with 10 bits per colour compressed to 8 bits each, using DPCM
+ compression. DPCM, differential pulse-code modulation, is lossy.
+ Each colour component consumes 8 bits of memory. In other respects
+ this format is similar to <xref
+ linkend="pixfmt-srggb10">.
+
+ </refsect1>
+ </refentry>
diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml
index 31eaae2..74d4fcd 100644
--- a/Documentation/DocBook/media/v4l/pixfmt.xml
+++ b/Documentation/DocBook/media/v4l/pixfmt.xml
@@ -673,6 +673,7 @@ access the palette, this must be done with ioctls of the Linux framebuffer API.<
&sub-srggb8;
&sub-sbggr16;
&sub-srggb10;
+ &sub-srggb10dpcm8;
&sub-srggb12;


diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index f46350e..76f3153 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -378,7 +378,10 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12 GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12 RGRG.. GBGB.. */
/* 10bit raw bayer DPCM compressed to 8 bits */
+#define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
+#define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
#define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
+#define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
/*
* 10bit raw bayer, expanded to 16 bits
* xxxxrrrrrrrrrrxxxxgggggggggg xxxxggggggggggxxxxbbbbbbbbbb...
--
1.7.2.5