diff options
author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2019-08-13 08:31:28 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-15 08:12:06 -0300 |
commit | 24a90c926219505efd9b9ac773bb015e32d5519c (patch) | |
tree | 5f7284c56a219b98c6255f872906635ca4b5e2cf | |
parent | 50435d8dbc0560c1b7ee2381edddb7e84b96d464 (diff) |
media: v4l: Documentation: Raw Bayer formats are not RGB formats
The raw Bayer formats have been listed under the label of RGB formats but
in fact they're quite different. The latter are readily usable as such
whereas the former require quite bit of image processing before useful.
Split them into RGB and raw Bayer formats.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
-rw-r--r-- | Documentation/media/uapi/v4l/control.rst | 2 | ||||
-rw-r--r-- | Documentation/media/uapi/v4l/hist-v4l2.rst | 2 | ||||
-rw-r--r-- | Documentation/media/uapi/v4l/pixfmt-bayer.rst | 38 | ||||
-rw-r--r-- | Documentation/media/uapi/v4l/pixfmt-packed-rgb.rst | 1306 | ||||
-rw-r--r-- | Documentation/media/uapi/v4l/pixfmt-rgb.rst | 1302 | ||||
-rw-r--r-- | Documentation/media/uapi/v4l/pixfmt-v4l2.rst | 2 | ||||
-rw-r--r-- | Documentation/media/uapi/v4l/pixfmt.rst | 1 |
7 files changed, 1330 insertions, 1323 deletions
diff --git a/Documentation/media/uapi/v4l/control.rst b/Documentation/media/uapi/v4l/control.rst index 71417bba028c..ef62e088ff7a 100644 --- a/Documentation/media/uapi/v4l/control.rst +++ b/Documentation/media/uapi/v4l/control.rst @@ -295,7 +295,7 @@ Control IDs Sets the alpha color component. When a capture device (or capture queue of a mem-to-mem device) produces a frame format that includes an alpha component (e.g. - :ref:`packed RGB image formats <rgb-formats>`) and the alpha value + :ref:`packed RGB image formats <pixfmt-rgb>`) and the alpha value is not defined by the device or the mem-to-mem input data this control lets you select the alpha component value of all pixels. When an output device (or output queue of a mem-to-mem device) diff --git a/Documentation/media/uapi/v4l/hist-v4l2.rst b/Documentation/media/uapi/v4l/hist-v4l2.rst index 7d8e9efbeb1e..9e097f34cb74 100644 --- a/Documentation/media/uapi/v4l/hist-v4l2.rst +++ b/Documentation/media/uapi/v4l/hist-v4l2.rst @@ -900,7 +900,7 @@ V4L2 in Linux 2.6.19 :ref:`VIDIOC_ENUM_FRAMEINTERVALS` were added. -3. A new pixel format ``V4L2_PIX_FMT_RGB444`` (:ref:`rgb-formats`) was +3. A new pixel format ``V4L2_PIX_FMT_RGB444`` (:ref:`pixfmt-rgb`) was added. diff --git a/Documentation/media/uapi/v4l/pixfmt-bayer.rst b/Documentation/media/uapi/v4l/pixfmt-bayer.rst new file mode 100644 index 000000000000..cfa2f4e3e114 --- /dev/null +++ b/Documentation/media/uapi/v4l/pixfmt-bayer.rst @@ -0,0 +1,38 @@ +.. Permission is granted to copy, distribute and/or modify this +.. document under the terms of the GNU Free Documentation License, +.. Version 1.1 or any later version published by the Free Software +.. Foundation, with no Invariant Sections, no Front-Cover Texts +.. and no Back-Cover Texts. A copy of the license is included at +.. Documentation/media/uapi/fdl-appendix.rst. +.. +.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections + +.. _pixfmt-bayer: + +***************** +Raw Bayer Formats +***************** + +Description +=========== + +The raw Bayer formats are used by image sensors before much if any processing is +performed on the image. The formats contain green, red and blue components, with +alternating lines of red and green, and blue and green pixels in different +orders. See also `the Wikipedia article on Bayer filter +<https://en.wikipedia.org/wiki/Bayer_filter>`__. + + +.. toctree:: + :maxdepth: 1 + + pixfmt-srggb8 + pixfmt-srggb10 + pixfmt-srggb10p + pixfmt-srggb10alaw8 + pixfmt-srggb10dpcm8 + pixfmt-srggb10-ipu3 + pixfmt-srggb12 + pixfmt-srggb12p + pixfmt-srggb14p + pixfmt-srggb16 diff --git a/Documentation/media/uapi/v4l/pixfmt-packed-rgb.rst b/Documentation/media/uapi/v4l/pixfmt-packed-rgb.rst deleted file mode 100644 index 738bb14c0ee2..000000000000 --- a/Documentation/media/uapi/v4l/pixfmt-packed-rgb.rst +++ /dev/null @@ -1,1306 +0,0 @@ -.. Permission is granted to copy, distribute and/or modify this -.. document under the terms of the GNU Free Documentation License, -.. Version 1.1 or any later version published by the Free Software -.. Foundation, with no Invariant Sections, no Front-Cover Texts -.. and no Back-Cover Texts. A copy of the license is included at -.. Documentation/media/uapi/fdl-appendix.rst. -.. -.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections - -.. _packed-rgb: - -****************** -Packed RGB formats -****************** - -Description -=========== - -These formats are designed to match the pixel formats of typical PC -graphics frame buffers. They occupy 8, 16, 24 or 32 bits per pixel. -These are all packed-pixel formats, meaning all the data for a pixel lie -next to each other in memory. - -.. raw:: latex - - \begingroup - \tiny - \setlength{\tabcolsep}{2pt} - -.. tabularcolumns:: |p{2.8cm}|p{2.0cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}| - - -.. _rgb-formats: - -.. flat-table:: Packed RGB Image Formats - :header-rows: 2 - :stub-columns: 0 - - * - Identifier - - Code - - :cspan:`7` Byte 0 in memory - - :cspan:`7` Byte 1 - - :cspan:`7` Byte 2 - - :cspan:`7` Byte 3 - * - - - - - 7 - - 6 - - 5 - - 4 - - 3 - - 2 - - 1 - - 0 - - - 7 - - 6 - - 5 - - 4 - - 3 - - 2 - - 1 - - 0 - - - 7 - - 6 - - 5 - - 4 - - 3 - - 2 - - 1 - - 0 - - - 7 - - 6 - - 5 - - 4 - - 3 - - 2 - - 1 - - 0 - * .. _V4L2-PIX-FMT-RGB332: - - - ``V4L2_PIX_FMT_RGB332`` - - 'RGB1' - - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`1` - - b\ :sub:`0` - - - * .. _V4L2-PIX-FMT-ARGB444: - - - ``V4L2_PIX_FMT_ARGB444`` - - 'AR12' - - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - a\ :sub:`3` - - a\ :sub:`2` - - a\ :sub:`1` - - a\ :sub:`0` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - * .. _V4L2-PIX-FMT-XRGB444: - - - ``V4L2_PIX_FMT_XRGB444`` - - 'XR12' - - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - - - - - - - - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - * .. _V4L2-PIX-FMT-RGBA444: - - - ``V4L2_PIX_FMT_RGBA444`` - - 'RA12' - - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - a\ :sub:`3` - - a\ :sub:`2` - - a\ :sub:`1` - - a\ :sub:`0` - - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - * .. _V4L2-PIX-FMT-RGBX444: - - - ``V4L2_PIX_FMT_RGBX444`` - - 'RX12' - - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - - - - - - - - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - * .. _V4L2-PIX-FMT-ABGR444: - - - ``V4L2_PIX_FMT_ABGR444`` - - 'AB12' - - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - a\ :sub:`3` - - a\ :sub:`2` - - a\ :sub:`1` - - a\ :sub:`0` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - * .. _V4L2-PIX-FMT-XBGR444: - - - ``V4L2_PIX_FMT_XBGR444`` - - 'XB12' - - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - - - - - - - - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - * .. _V4L2-PIX-FMT-BGRA444: - - - ``V4L2_PIX_FMT_BGRA444`` - - 'BA12' - - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - a\ :sub:`3` - - a\ :sub:`2` - - a\ :sub:`1` - - a\ :sub:`0` - - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - * .. _V4L2-PIX-FMT-BGRX444: - - - ``V4L2_PIX_FMT_BGRX444`` - - 'BX12' - - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - - - - - - - - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - * .. _V4L2-PIX-FMT-ARGB555: - - - ``V4L2_PIX_FMT_ARGB555`` - - 'AR15' - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - a - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - - * .. _V4L2-PIX-FMT-XRGB555: - - - ``V4L2_PIX_FMT_XRGB555`` - - 'XR15' - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - - * .. _V4L2-PIX-FMT-RGBA555: - - - ``V4L2_PIX_FMT_RGBA555`` - - 'RA15' - - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - a - - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - - * .. _V4L2-PIX-FMT-RGBX555: - - - ``V4L2_PIX_FMT_RGBX555`` - - 'RX15' - - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - - * .. _V4L2-PIX-FMT-ABGR555: - - - ``V4L2_PIX_FMT_ABGR555`` - - 'AB15' - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - a - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - - * .. _V4L2-PIX-FMT-XBGR555: - - - ``V4L2_PIX_FMT_XBGR555`` - - 'XB15' - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - - * .. _V4L2-PIX-FMT-BGRA555: - - - ``V4L2_PIX_FMT_BGRA555`` - - 'BA15' - - - g\ :sub:`1` - - g\ :sub:`0` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - a - - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - - * .. _V4L2-PIX-FMT-BGRX555: - - - ``V4L2_PIX_FMT_BGRX555`` - - 'BX15' - - - g\ :sub:`1` - - g\ :sub:`0` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - - * .. _V4L2-PIX-FMT-RGB565: - - - ``V4L2_PIX_FMT_RGB565`` - - 'RGBP' - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - - * .. _V4L2-PIX-FMT-ARGB555X: - - - ``V4L2_PIX_FMT_ARGB555X`` - - 'AR15' | (1 << 31) - - - a - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - * .. _V4L2-PIX-FMT-XRGB555X: - - - ``V4L2_PIX_FMT_XRGB555X`` - - 'XR15' | (1 << 31) - - - - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - * .. _V4L2-PIX-FMT-RGB565X: - - - ``V4L2_PIX_FMT_RGB565X`` - - 'RGBR' - - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - * .. _V4L2-PIX-FMT-BGR24: - - - ``V4L2_PIX_FMT_BGR24`` - - 'BGR3' - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - * .. _V4L2-PIX-FMT-RGB24: - - - ``V4L2_PIX_FMT_RGB24`` - - 'RGB3' - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - * .. _V4L2-PIX-FMT-BGR666: - - - ``V4L2_PIX_FMT_BGR666`` - - 'BGRH' - - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - g\ :sub:`5` - - g\ :sub:`4` - - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - - r\ :sub:`1` - - r\ :sub:`0` - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - * .. _V4L2-PIX-FMT-ABGR32: - - - ``V4L2_PIX_FMT_ABGR32`` - - 'AR24' - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - a\ :sub:`7` - - a\ :sub:`6` - - a\ :sub:`5` - - a\ :sub:`4` - - a\ :sub:`3` - - a\ :sub:`2` - - a\ :sub:`1` - - a\ :sub:`0` - * .. _V4L2-PIX-FMT-XBGR32: - - - ``V4L2_PIX_FMT_XBGR32`` - - 'XR24' - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - - - - - - - - - - - - - - - - * .. _V4L2-PIX-FMT-BGRA32: - - - ``V4L2_PIX_FMT_BGRA32`` - - 'RA24' - - - a\ :sub:`7` - - a\ :sub:`6` - - a\ :sub:`5` - - a\ :sub:`4` - - a\ :sub:`3` - - a\ :sub:`2` - - a\ :sub:`1` - - a\ :sub:`0` - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - * .. _V4L2-PIX-FMT-BGRX32: - - - ``V4L2_PIX_FMT_BGRX32`` - - 'RX24' - - - - - - - - - - - - - - - - - - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - * .. _V4L2-PIX-FMT-RGBA32: - - - ``V4L2_PIX_FMT_RGBA32`` - - 'AB24' - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - a\ :sub:`7` - - a\ :sub:`6` - - a\ :sub:`5` - - a\ :sub:`4` - - a\ :sub:`3` - - a\ :sub:`2` - - a\ :sub:`1` - - a\ :sub:`0` - * .. _V4L2-PIX-FMT-RGBX32: - - - ``V4L2_PIX_FMT_RGBX32`` - - 'XB24' - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - - - - - - - - - - - - - - - - * .. _V4L2-PIX-FMT-ARGB32: - - - ``V4L2_PIX_FMT_ARGB32`` - - 'BA24' - - - a\ :sub:`7` - - a\ :sub:`6` - - a\ :sub:`5` - - a\ :sub:`4` - - a\ :sub:`3` - - a\ :sub:`2` - - a\ :sub:`1` - - a\ :sub:`0` - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - * .. _V4L2-PIX-FMT-XRGB32: - - - ``V4L2_PIX_FMT_XRGB32`` - - 'BX24' - - - - - - - - - - - - - - - - - - - - r\ :sub:`7` - - r\ :sub:`6` - - r\ :sub:`5` - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - -.. raw:: latex - - \endgroup - -.. note:: Bit 7 is the most significant bit. - -The usage and value of the alpha bits (a) in the ARGB and ABGR formats -(collectively referred to as alpha formats) depend on the device type -and hardware operation. :ref:`Capture <capture>` devices (including -capture queues of mem-to-mem devices) fill the alpha component in -memory. When the device outputs an alpha channel the alpha component -will have a meaningful value. Otherwise, when the device doesn't output -an alpha channel but can set the alpha bit to a user-configurable value, -the :ref:`V4L2_CID_ALPHA_COMPONENT <v4l2-alpha-component>` control -is used to specify that alpha value, and the alpha component of all -pixels will be set to the value specified by that control. Otherwise a -corresponding format without an alpha component (XRGB or XBGR) must be -used instead of an alpha format. - -:ref:`Output <output>` devices (including output queues of mem-to-mem -devices and :ref:`video output overlay <osd>` devices) read the alpha -component from memory. When the device processes the alpha channel the -alpha component must be filled with meaningful values by applications. -Otherwise a corresponding format without an alpha component (XRGB or -XBGR) must be used instead of an alpha format. - -The XRGB and XBGR formats contain undefined bits (-). Applications, -devices and drivers must ignore those bits, for both -:ref:`capture` and :ref:`output` devices. - -**Byte Order.** -Each cell is one byte. - - -.. raw:: latex - - \small - -.. tabularcolumns:: |p{3.1cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}| - -.. flat-table:: RGB byte order - :header-rows: 0 - :stub-columns: 0 - :widths: 11 3 3 3 3 3 3 3 3 3 3 3 3 - - * - start + 0: - - B\ :sub:`00` - - G\ :sub:`00` - - R\ :sub:`00` - - B\ :sub:`01` - - G\ :sub:`01` - - R\ :sub:`01` - - B\ :sub:`02` - - G\ :sub:`02` - - R\ :sub:`02` - - B\ :sub:`03` - - G\ :sub:`03` - - R\ :sub:`03` - * - start + 12: - - B\ :sub:`10` - - G\ :sub:`10` - - R\ :sub:`10` - - B\ :sub:`11` - - G\ :sub:`11` - - R\ :sub:`11` - - B\ :sub:`12` - - G\ :sub:`12` - - R\ :sub:`12` - - B\ :sub:`13` - - G\ :sub:`13` - - R\ :sub:`13` - * - start + 24: - - B\ :sub:`20` - - G\ :sub:`20` - - R\ :sub:`20` - - B\ :sub:`21` - - G\ :sub:`21` - - R\ :sub:`21` - - B\ :sub:`22` - - G\ :sub:`22` - - R\ :sub:`22` - - B\ :sub:`23` - - G\ :sub:`23` - - R\ :sub:`23` - * - start + 36: - - B\ :sub:`30` - - G\ :sub:`30` - - R\ :sub:`30` - - B\ :sub:`31` - - G\ :sub:`31` - - R\ :sub:`31` - - B\ :sub:`32` - - G\ :sub:`32` - - R\ :sub:`32` - - B\ :sub:`33` - - G\ :sub:`33` - - R\ :sub:`33` - -.. raw:: latex - - \normalsize - -Formats defined in :ref:`rgb-formats-deprecated` are deprecated and -must not be used by new drivers. They are documented here for reference. -The meaning of their alpha bits ``(a)`` are ill-defined and interpreted as in -either the corresponding ARGB or XRGB format, depending on the driver. - - -.. raw:: latex - - \begingroup - \tiny - \setlength{\tabcolsep}{2pt} - -.. tabularcolumns:: |p{2.6cm}|p{0.70cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}| - -.. _rgb-formats-deprecated: - -.. flat-table:: Deprecated Packed RGB Image Formats - :header-rows: 2 - :stub-columns: 0 - - * - Identifier - - Code - - :cspan:`7` Byte 0 in memory - - - :cspan:`7` Byte 1 - - - :cspan:`7` Byte 2 - - - :cspan:`7` Byte 3 - * - - - - - 7 - - 6 - - 5 - - 4 - - 3 - - 2 - - 1 - - 0 - - - 7 - - 6 - - 5 - - 4 - - 3 - - 2 - - 1 - - 0 - - - 7 - - 6 - - 5 - - 4 - - 3 - - 2 - - 1 - - 0 - - - 7 - - 6 - - 5 - - 4 - - 3 - - 2 - - 1 - - 0 - * .. _V4L2-PIX-FMT-RGB444: - - - ``V4L2_PIX_FMT_RGB444`` - - 'R444' - - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - a\ :sub:`3` - - a\ :sub:`2` - - a\ :sub:`1` - - a\ :sub:`0` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - - * .. _V4L2-PIX-FMT-RGB555: - - - ``V4L2_PIX_FMT_RGB555`` - - 'RGBO' - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - a - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - - * .. _V4L2-PIX-FMT-RGB555X: - - - ``V4L2_PIX_FMT_RGB555X`` - - 'RGBQ' - - - a - - r\ :sub:`4` - - r\ :sub:`3` - - r\ :sub:`2` - - r\ :sub:`1` - - r\ :sub:`0` - - g\ :sub:`4` - - g\ :sub:`3` - - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - * .. _V4L2-PIX-FMT-BGR32: - - - ``V4L2_PIX_FMT_BGR32`` - - 'BGR4' - - - b\ :sub:`7` - - b\ :sub:`6` - - b\ :sub:`5` - - b\ :sub:`4` - - b\ :sub:`3` - - b\ :sub:`2` - - b\ :sub:`1` - - b\ :sub:`0` - - - g\ :sub:`7` - - g\ :sub:`6` - - g\ :sub:`5` - - g\ :sub:`4` - - g\ :sub:`3` - - g\ :sub:`2` - - g\ :sub:`1` - - g\ :sub:`0` - |