{"id":18845,"url":"https://patchwork.libcamera.org/api/patches/18845/?format=json","web_url":"https://patchwork.libcamera.org/patch/18845/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20230718105210.83558-5-jacopo.mondi@ideasonboard.com>","date":"2023-07-18T10:52:04","name":"[libcamera-devel,v3,04/10] libcamera: properties: Make 'Rotation' the mounting rotation","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"5a6b72d0f853d0d1abb0ddff88c46d929a0fc426","submitter":{"id":143,"url":"https://patchwork.libcamera.org/api/people/143/?format=json","name":"Jacopo Mondi","email":"jacopo.mondi@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/18845/mbox/","series":[{"id":3976,"url":"https://patchwork.libcamera.org/api/series/3976/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=3976","date":"2023-07-18T10:52:00","name":"libcamera: Replace CameraConfiguration::transform","version":3,"mbox":"https://patchwork.libcamera.org/series/3976/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/18845/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/18845/checks/","tags":{},"headers":{"Return-Path":"<libcamera-devel-bounces@lists.libcamera.org>","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 36D50C324D\n\tfor <parsemail@patchwork.libcamera.org>;\n\tTue, 18 Jul 2023 10:52:27 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id B7B22628D2;\n\tTue, 18 Jul 2023 12:52:26 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 0EE4661E2B\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tTue, 18 Jul 2023 12:52:25 +0200 (CEST)","from uno.localdomain (mob-5-90-54-150.net.vodafone.it\n\t[5.90.54.150])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 2580B838;\n\tTue, 18 Jul 2023 12:51:31 +0200 (CEST)"],"DKIM-Signature":["v=1; 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dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"erRBdDf0\"; dkim-atps=neutral","To":"libcamera-devel@lists.libcamera.org","Date":"Tue, 18 Jul 2023 12:52:04 +0200","Message-Id":"<20230718105210.83558-5-jacopo.mondi@ideasonboard.com>","X-Mailer":"git-send-email 2.40.1","In-Reply-To":"<20230718105210.83558-1-jacopo.mondi@ideasonboard.com>","References":"<20230718105210.83558-1-jacopo.mondi@ideasonboard.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","Subject":"[libcamera-devel] [PATCH v3 04/10] libcamera: properties: Make\n\t'Rotation' the mounting rotation","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"<libcamera-devel.lists.libcamera.org>","List-Unsubscribe":"<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>","List-Archive":"<https://lists.libcamera.org/pipermail/libcamera-devel/>","List-Post":"<mailto:libcamera-devel@lists.libcamera.org>","List-Help":"<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>","List-Subscribe":"<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>","From":"Jacopo Mondi via libcamera-devel <libcamera-devel@lists.libcamera.org>","Reply-To":"Jacopo Mondi <jacopo.mondi@ideasonboard.com>","Cc":"Jacopo Mondi <jacopo.mondi@ideasonboard.com>","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"},"content":"Specify in the documentation that properties::Rotation specifies the\nmounting rotation of the camera module. This avoids confusion with the\nimage orientation which is instead expressed by\nCameraConfiguration::orientation.\n\nFor this reason, do not compensate the Rotation property when\ninitializing the CameraSensor class but report the value of\nV4L2_CID_CAMERA_SENSOR_ROTATION or 0 if the control is not available.\n\nSigned-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>\nReviewed-by: David Plowman <david.plowman@raspberrypi.com>\n---\n src/libcamera/camera_sensor.cpp | 11 +----------\n src/libcamera/property_ids.yaml |  8 ++++----\n 2 files changed, 5 insertions(+), 14 deletions(-)","diff":"diff --git a/src/libcamera/camera_sensor.cpp b/src/libcamera/camera_sensor.cpp\nindex 9a033459742f..3ba364c44a40 100644\n--- a/src/libcamera/camera_sensor.cpp\n+++ b/src/libcamera/camera_sensor.cpp\n@@ -476,20 +476,11 @@ int CameraSensor::initProperties()\n \t\t\trotationTransform_ = Transform::Identity;\n \t\t}\n \n-\t\t/*\n-\t\t * Adjust property::Rotation as validateTransform() compensates\n-\t\t * for the mounting rotation. However, as a camera sensor can\n-\t\t * only compensate rotations by applying H/VFlips, only rotation\n-\t\t * of 180 degrees are automatically compensated. The other valid\n-\t\t * rotations (Rot90 and Rot270) require transposition, which the\n-\t\t * camera sensor cannot perform, so leave them untouched.\n-\t\t */\n-\t\tif (propertyValue == 180 && supportFlips_)\n-\t\t\tpropertyValue = 0;\n \t\tproperties_.set(properties::Rotation, propertyValue);\n \t} else {\n \t\tLOG(CameraSensor, Warning)\n \t\t\t<< \"Rotation control not available, default to 0 degrees\";\n+\t\tproperties_.set(properties::Rotation, propertyValue);\n \t\trotationTransform_ = Transform::Identity;\n \t}\n \ndiff --git a/src/libcamera/property_ids.yaml b/src/libcamera/property_ids.yaml\nindex 5bddafc29364..fb53081c1bd2 100644\n--- a/src/libcamera/property_ids.yaml\n+++ b/src/libcamera/property_ids.yaml\n@@ -29,10 +29,10 @@ controls:\n   - Rotation:\n       type: int32_t\n       description: |\n-        The camera rotation is expressed as the angular difference in degrees\n-        between two reference systems, one relative to the camera module, and\n-        one defined on the external world scene to be captured when projected\n-        on the image sensor pixel array.\n+        The camera physical mounting rotation, expressed as the angular\n+        difference in degrees between two reference systems, one relative to the\n+        camera module, and one defined on the external world scene to be\n+        captured when projected on the image sensor pixel array.\n \n         A camera sensor has a 2-dimensional reference system 'Rc' defined by\n         its pixel array read-out order. The origin is set to the first pixel\n","prefixes":["libcamera-devel","v3","04/10"]}