From patchwork Fri Nov 29 09:51:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 846406 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E9672160799 for ; Fri, 29 Nov 2024 09:52:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.18 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732873955; cv=none; b=sHMykNw0cQqx69oOdgb/3yzRhHTe6J4vksDkvFifz7SMSMY2yyG39JnXn7AykfsokSN5vtoDeH7k+51KNQg1EjlmsWWyn/mUHSCOAdAQS+WMujo8D5UjZD1rrrj8jqpxTUsj9nkO9lcJ61j8acbo0Vwewn/gbWXkb7dswddTXmA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732873955; c=relaxed/simple; bh=il3McMAGg4xoWUtr43NEGpDzUXR0nrbp+NRvbPbT42c=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=mIrWINY6Ol6l8bAkILNazPAt8WlNTFiYonzcLtq7wXFAfNTeZoqVeOUlj2YD7UY6GojRpatu5Y/6V20HaFI5r0pT8V+5Vb9pchyRM7ovC4rS7QJ3KTmwB35W3o5Q+Aq+pWgyuFSYEDSt8N0FYZu7yerH2l7TQ77Vfz6B3IboEz4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=R3AGIfV1; arc=none smtp.client-ip=198.175.65.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="R3AGIfV1" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1732873954; x=1764409954; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=il3McMAGg4xoWUtr43NEGpDzUXR0nrbp+NRvbPbT42c=; b=R3AGIfV1mNg7ydWqVt3qNkb2o/LXVHDHylw0dlvaKM/eDeHgzfwtLg5B KLmlAp8pdE4W7wzQnIAyxqCWyjqZ2+Eja+bO2LH2+CVjmKQUA/0seYpa+ uX1LZmflHH57k0EUygW23O+GD1m7KYl4i3iMs/JOz7OKU/r8cBEuLIiru 0PrnMpio71jDKw0KfUJtyC9Bd3Yue3Z8beg73w1/+CZTnBhmM5MiVb9kl uHPJM4kIA2vHh6jTIJbYu1c+ovUINRkBlWEs66dTUI5rtc9ksXC7Sp5Tb EJoTIbLfnwsCDRqubb44jX43UitzZ/H2tnbcPiy4PjzwS7On6ru9P3U8B Q==; X-CSE-ConnectionGUID: f0679xZ9SoKZPacBd+VQhQ== X-CSE-MsgGUID: +Eq0tJpsQAyPdL1QW2yDFg== X-IronPort-AV: E=McAfee;i="6700,10204,11270"; a="33258294" X-IronPort-AV: E=Sophos;i="6.12,195,1728975600"; d="scan'208";a="33258294" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2024 01:52:34 -0800 X-CSE-ConnectionGUID: 2OOHolRnRNeaxPINSc8l0w== X-CSE-MsgGUID: vbU90E7SQZuP2HaJ1XhVkQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,195,1728975600"; d="scan'208";a="97414424" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2024 01:52:28 -0800 Received: from svinhufvud.intel.com (maa-artisokka.localdomain [192.168.240.50]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 3888011FADB; Fri, 29 Nov 2024 11:52:20 +0200 (EET) Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo From: Sakari Ailus To: linux-media@vger.kernel.org Cc: hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com, Prabhakar , Kate Hsuan , Alexander Shiyan , Mikhail Rudenko , Dave Stevenson , Tommaso Merciai , Umang Jain , Benjamin Mugnier , Sylvain Petinot , Christophe JAILLET , Julien Massot , Naushir Patuck , "Yan, Dongcheng" , "Cao, Bingbu" , "Qiu, Tian Shu" , "Wang, Hongju" , Stefan Klug , Mirela Rabulea , =?utf-8?q?Andr=C3=A9_Apitzsch?= , Heimir Thor Sverrisson , Kieran Bingham , Stanislaw Gruszka , Mehdi Djait , Ricardo Ribalda Delgado Subject: [RFC v3 9/9] media: Documentation: Add binning and sub-sampling controls Date: Fri, 29 Nov 2024 11:51:42 +0200 Message-Id: <20241129095142.87196-10-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241129095142.87196-1-sakari.ailus@linux.intel.com> References: <20241129095142.87196-1-sakari.ailus@linux.intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Document the binning and scaling controls (V4L2_CID_BINNING and V4L2_CID_SUBSAMPLING_{HORIZONTAL,VERTICAL}) in the common raw sensor model. Signed-off-by: Sakari Ailus --- .../media/v4l/subdev-config-model.rst | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/Documentation/userspace-api/media/v4l/subdev-config-model.rst b/Documentation/userspace-api/media/v4l/subdev-config-model.rst index 1ae20800f34b..06a94ff4d2b4 100644 --- a/Documentation/userspace-api/media/v4l/subdev-config-model.rst +++ b/Documentation/userspace-api/media/v4l/subdev-config-model.rst @@ -113,7 +113,10 @@ separately horizontally and vertically. Binning and sub-sampling are configured using the ``V4L2_SEL_TGT_COMPOSE`` rectangle, relative to the analogue crop rectangle, on (pad, stream) pair 1/0. It depends on the driver which of these operations are being used to -achieve the resulting size. +achieve the resulting size. Binning and sub-sampling are also directly +configured using :ref:`V4L2_CID_BINNING ` and +:ref:`V4L2_CID_SUBSAMPLING_HORIZONTAL and V4L2_CID_SUBSAMPLING_VERTICAL +` controls on drivers that support them. The digital crop operation takes place after binning and sub-sampling. It is configured by setting the ``V4L2_SEL_TGT_CROP`` rectangle on (pad, stream) pair @@ -169,9 +172,15 @@ Also refer to :ref:`Selection targets `. - \- - X - Binning and sub-sampling. This rectangle is relative to the - ``V4L2_SEL_TGT_CROP`` rectangle on the same (pad, stream). The - combination of binning and sub-sampling is configured using this - selection target. + ``V4L2_SEL_TGT_CROP`` rectangle on the same (pad, stream). Binning is + configured using the :ref:`V4L2_CID_BINNING + ` control and sub-sampling is configured + using the :ref:`V4L2_CID_SUBSAMPLING_HORIZONTAL and + V4L2_CID_SUBSAMPLING_VERTICAL ` + controls on drivers that support these controls. To configure binning + and sub-sampling on drivers that do not support these controls, the + selection rectangle may be changed directly to configure the combined + effect on the image size. * - 2/0 - Format - X