From patchwork Fri Jun 28 08:37:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Edgar Thier X-Patchwork-Id: 57263 Received: from vger.kernel.org ([209.132.180.67]) by www.linuxtv.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hgmOK-0006GN-Va; Fri, 28 Jun 2019 08:37:57 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726420AbfF1Ihz (ORCPT + 1 other); Fri, 28 Jun 2019 04:37:55 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:48785 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726056AbfF1Ihz (ORCPT ); Fri, 28 Jun 2019 04:37:55 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 0E0F920CB3; Fri, 28 Jun 2019 04:37:54 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute4.internal (MEProxy); Fri, 28 Jun 2019 04:37:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :message-id:mime-version:subject:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=1FQYyb1o1Zboma/43 TrSXmFkhhRGemdjZP4pNCruGUk=; b=BgPPAd1k5b+EaQZ3/vUOz3Ufscz55QP7Z aX8u0IWKbQ0l0/hh9JWRl5tV/icpBXRZIqqu0fBj5If7NxnRn2xBwz3K/QM2tHMf DQ09k0eMhKnWZcpZs+JLuGlqzSlnmkUaQzMDbcX1B93aTYiYeXij+sAeyU2wlowf hi7VOQeoo0PZmLu5ugH3zdfIwkcrMl/Y6j0AnTh1S16r+K+OiEH8EpLcj44sT7S9 sv+/Dc+ro0j93ZfiuIO0gcirq7pJ4sIZyhGmc4asZAeaOV3Hi7HnFRK6yaw2oldT lPFdidxPJVAX3St31OxyvWkObSmiUlL9qo1ANZvx9dom3VO5I5OUg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduvddrvddtgddtkecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgggfestdekredtredttdenucfhrhhomhepgfgughgrrhcuvfhh ihgvrhcuoehinhhfohesvggughgrrhhthhhivghrrdhnvghtqeenucffohhmrghinhepvg hmvhgrrdhorhhgpdhvihhsihhonhhonhhlihhnvgdrohhrghenucfkphepfedurddvtdel rdelhedrvdegvdenucfrrghrrghmpehmrghilhhfrhhomhepihhnfhhosegvughgrghrth hhihgvrhdrnhgvthenucevlhhushhtvghrufhiiigvpedt X-ME-Proxy: Received: from localhost.localdomain (unknown [31.209.95.242]) by mail.messagingengine.com (Postfix) with ESMTPA id D51FF380085; Fri, 28 Jun 2019 04:37:52 -0400 (EDT) From: Edgar Thier To: laurent.pinchart@ideasonboard.com Cc: Edgar Thier , Linux Media Mailing List Subject: [PATCH 1/2] v4l: Add Genicam 12-bit bayer packed formats Date: Fri, 28 Jun 2019 10:37:40 +0200 Message-Id: <20190628083740.21315-1-info@edgarthier.net> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org These formats are compressed 12-bit raw bayer formats with four different pixel orders. They are similar to 10-bit bayer formats 'IPU3'. The naming and pixel structure follow the Genicam Pixel Format Naming Convention (PFNC). Signed-off-by: Edgar Thier --- .../media/uapi/v4l/pixfmt-pfnc-bayerrg12p.rst | 61 +++++++++++++++++++ Documentation/media/uapi/v4l/pixfmt-rgb.rst | 1 + drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++ include/uapi/linux/videodev2.h | 7 +++ 4 files changed, 73 insertions(+) create mode 100644 Documentation/media/uapi/v4l/pixfmt-pfnc-bayerrg12p.rst -- 2.20.1 diff --git a/Documentation/media/uapi/v4l/pixfmt-pfnc-bayerrg12p.rst b/Documentation/media/uapi/v4l/pixfmt-pfnc-bayerrg12p.rst new file mode 100644 index 000000000000..6d294cf89353 --- /dev/null +++ b/Documentation/media/uapi/v4l/pixfmt-pfnc-bayerrg12p.rst @@ -0,0 +1,61 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _v4l2-pix-fmt-pfnc-bayergr12p: +.. _v4l2-pix-fmt-pfnc-bayerrg12p: +.. _v4l2-pix-fmt-pfnc-bayerbg12p: +.. _v4l2-pix-fmt-pfnc-bayergb12p: + +********************************************************************************************************************************************************** +V4L2_PIX_FMT_PFNC_BAYERBG12P ('BGCp'), V4L2_PIX_FMT_PFNC_BAYERGB12P ('GBCp'), V4L2_PIX_FMT_PFNC_BAYERGR12P ('GRCp'), V4L2_PIX_FMT_PFNC_BAYERRG12P ('RGCp') +********************************************************************************************************************************************************** + +12-bit Bayer formats + +Description +=========== + +These four pixel formats are used by industrial cameras, often in conjunction +with UsbVision (see https://www.visiononline.org/userAssets/aiaUploads/file/USB3_Vision_Specification_v1-0-1.pdf). + +The naming is in accordance to the Genicam Pixel Format Naming Convention +(see https://www.emva.org/wp-content/uploads/GenICam_PFNC_2_3.pdf). + +They are raw sRGB / Bayer formats with 12 bits +per sample with 3 bytes for every 2 pixels. + +The format is little endian. + +In other respects this format is similar to :ref:`v4l2-pix-fmt-ipu3-sbggr10`. +Below is an example of a small image in V4L2_PIX_FMT_PFNC_BAYERBG12P format. + +**Byte Order.** +Each cell is one byte. + +.. tabularcolumns:: |p{0.8cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}| + +.. flat-table:: + + * - start + 0: + - B\ :sub:`00low` + - G\ :sub:`01low`\ (bits 7--4) + B\ :sub:`00high`\ (bits 0--3) + - G\ :sub:`01high`\ + + * - start + 6: + - G\ :sub:`02low` + - R\ :sub:`03low`\ (bits 7--4) + G\ :sub:`02high`\ (bits 0--3) + - R\ :sub:`03high` + + * - start + 12: + - B\ :sub:`04low` + - G\ :sub:`05low`\ (bits 7--4) + B\ :sub:`04high`\ (bits 0--3) + - G\ :sub:`05high` + + * - start + 24: + - G\ :sub:`06low` + - R\ :sub:`07low`\ (bits 7--4) + G\ :sub:`06high`\ (bits 0--3) + - R\ :sub:`07high` + diff --git a/Documentation/media/uapi/v4l/pixfmt-rgb.rst b/Documentation/media/uapi/v4l/pixfmt-rgb.rst index 48ab80024835..157a6a3a1e49 100644 --- a/Documentation/media/uapi/v4l/pixfmt-rgb.rst +++ b/Documentation/media/uapi/v4l/pixfmt-rgb.rst @@ -26,5 +26,6 @@ RGB Formats pixfmt-srggb10-ipu3 pixfmt-srggb12 pixfmt-srggb12p + pixfmt-pfnc-bayerrg12p pixfmt-srggb14p pixfmt-srggb16 diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index ac87c3e37280..8fab2f3fcbe5 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1275,6 +1275,10 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break; case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break; case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break; + case V4L2_PIX_FMT_PFNC_BAYERBG12P: descr = "12-bit Bayer BGBG/GRGR PFNC Packed"; break; + case V4L2_PIX_FMT_PFNC_BAYERGB12P: descr = "12-bit Bayer GBGB/RGRG PFNC Packed"; break; + case V4L2_PIX_FMT_PFNC_BAYERGR12P: descr = "12-bit Bayer GRGR/BGBG PFNC Packed"; break; + case V4L2_PIX_FMT_PFNC_BAYERRG12P: descr = "12-bit Bayer RGRG/GBGB PFNC Packed"; break; case V4L2_PIX_FMT_SBGGR12P: descr = "12-bit Bayer BGBG/GRGR Packed"; break; case V4L2_PIX_FMT_SGBRG12P: descr = "12-bit Bayer GBGB/RGRG Packed"; break; case V4L2_PIX_FMT_SGRBG12P: descr = "12-bit Bayer GRGR/BGBG Packed"; break; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 1050a75fb7ef..2f0b7e821cc8 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -646,6 +646,13 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12 GBGB.. RGRG.. */ #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.. */ + + /* 12bit raw bayer simple packed, 6 bytes for every 4 pixels */ +#define V4L2_PIX_FMT_PFNC_BAYERBG12P v4l2_fourcc('B', 'G', 'C', 'p') +#define V4L2_PIX_FMT_PFNC_BAYERGB12P v4l2_fourcc('G', 'B', 'C', 'p') +#define V4L2_PIX_FMT_PFNC_BAYERGR12P v4l2_fourcc('G', 'R', 'C', 'p') +#define V4L2_PIX_FMT_PFNC_BAYERRG12P v4l2_fourcc('R', 'G', 'C', 'p') + /* 12bit raw bayer packed, 6 bytes for every 4 pixels */ #define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C') #define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')