media: v4l: Add packed Bayer raw12 pixel formats
These formats are compressed 12-bit raw bayer formats with four different pixel orders. They are similar to 10-bit variants. The formats added by this patch are V4L2_PIX_FMT_SBGGR12P V4L2_PIX_FMT_SGBRG12P V4L2_PIX_FMT_SGRBG12P V4L2_PIX_FMT_SRGGB12P Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Sakari Ailus
Mauro Carvalho Chehab
parent
0de0ef6c3f
commit
d1b3437ed7
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@ -17,4 +17,5 @@ RGB Formats
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pixfmt-srggb10alaw8
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pixfmt-srggb10dpcm8
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pixfmt-srggb12
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pixfmt-srggb12p
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pixfmt-srggb16
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@ -0,0 +1,103 @@
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.. -*- coding: utf-8; mode: rst -*-
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.. _V4L2-PIX-FMT-SRGGB12P:
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.. _v4l2-pix-fmt-sbggr12p:
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.. _v4l2-pix-fmt-sgbrg12p:
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.. _v4l2-pix-fmt-sgrbg12p:
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*******************************************************************************************************************************
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V4L2_PIX_FMT_SRGGB12P ('pRAA'), V4L2_PIX_FMT_SGRBG12P ('pgAA'), V4L2_PIX_FMT_SGBRG12P ('pGAA'), V4L2_PIX_FMT_SBGGR12P ('pBAA'),
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*******************************************************************************************************************************
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12-bit packed Bayer formats
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Description
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===========
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These four pixel formats are packed raw sRGB / Bayer formats with 12
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bits per colour. Every two consecutive samples are packed into three
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bytes. Each of the first two bytes contain the 8 high order bits of
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the pixels, and the third byte contains the four least significants
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bits of each pixel, in the same order.
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Each n-pixel row contains n/2 green samples and n/2 blue or red
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samples, with alternating green-red and green-blue rows. They are
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conventionally described as GRGR... BGBG..., RGRG... GBGB..., etc.
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Below is an example of a small V4L2_PIX_FMT_SBGGR12P image:
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**Byte Order.**
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Each cell is one byte.
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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:widths: 2 1 1 1 1 1 1
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- .. row 1
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- start + 0:
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- B\ :sub:`00high`
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- G\ :sub:`01high`
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- G\ :sub:`01low`\ (bits 7--4) B\ :sub:`00low`\ (bits 3--0)
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- B\ :sub:`02high`
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- G\ :sub:`03high`
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- G\ :sub:`03low`\ (bits 7--4) B\ :sub:`02low`\ (bits 3--0)
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- .. row 2
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- start + 6:
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- G\ :sub:`10high`
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- R\ :sub:`11high`
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- R\ :sub:`11low`\ (bits 7--4) G\ :sub:`10low`\ (bits 3--0)
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- G\ :sub:`12high`
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- R\ :sub:`13high`
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- R\ :sub:`13low`\ (bits 3--2) G\ :sub:`12low`\ (bits 3--0)
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- .. row 3
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- start + 12:
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- B\ :sub:`20high`
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- G\ :sub:`21high`
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- G\ :sub:`21low`\ (bits 7--4) B\ :sub:`20low`\ (bits 3--0)
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- B\ :sub:`22high`
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- G\ :sub:`23high`
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- G\ :sub:`23low`\ (bits 7--4) B\ :sub:`22low`\ (bits 3--0)
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- .. row 4
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- start + 18:
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- G\ :sub:`30high`
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- R\ :sub:`31high`
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- R\ :sub:`31low`\ (bits 7--4) G\ :sub:`30low`\ (bits 3--0)
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- G\ :sub:`32high`
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- R\ :sub:`33high`
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- R\ :sub:`33low`\ (bits 3--2) G\ :sub:`32low`\ (bits 3--0)
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@ -1195,10 +1195,6 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
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case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break;
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case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break;
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case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break;
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case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
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case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
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case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
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case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
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case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break;
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case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break;
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case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break;
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@ -1211,6 +1207,14 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
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case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
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case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
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case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
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case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
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case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
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case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
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case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
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case V4L2_PIX_FMT_SBGGR12P: descr = "12-bit Bayer BGBG/GRGR Packed"; break;
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case V4L2_PIX_FMT_SGBRG12P: descr = "12-bit Bayer GBGB/RGRG Packed"; break;
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case V4L2_PIX_FMT_SGRBG12P: descr = "12-bit Bayer GRGR/BGBG Packed"; break;
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case V4L2_PIX_FMT_SRGGB12P: descr = "12-bit Bayer RGRG/GBGB Packed"; break;
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case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR"; break;
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case V4L2_PIX_FMT_SGBRG16: descr = "16-bit Bayer GBGB/RGRG"; break;
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case V4L2_PIX_FMT_SGRBG16: descr = "16-bit Bayer GRGR/BGBG"; break;
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@ -603,6 +603,11 @@ struct v4l2_pix_format {
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#define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12 GBGB.. RGRG.. */
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#define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12 GRGR.. BGBG.. */
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#define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12 RGRG.. GBGB.. */
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/* 12bit raw bayer packed, 6 bytes for every 4 pixels */
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#define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C')
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#define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')
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#define V4L2_PIX_FMT_SGRBG12P v4l2_fourcc('p', 'g', 'C', 'C')
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#define V4L2_PIX_FMT_SRGGB12P v4l2_fourcc('p', 'R', 'C', 'C')
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#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */
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#define V4L2_PIX_FMT_SGBRG16 v4l2_fourcc('G', 'B', '1', '6') /* 16 GBGB.. RGRG.. */
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#define V4L2_PIX_FMT_SGRBG16 v4l2_fourcc('G', 'R', '1', '6') /* 16 GRGR.. BGBG.. */
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