{"id":11873,"url":"https://patchwork.libcamera.org/api/patches/11873/?format=json","web_url":"https://patchwork.libcamera.org/patch/11873/","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":"<20210408133634.16815-4-david.plowman@raspberrypi.com>","date":"2021-04-08T13:36:34","name":"[libcamera-devel,v2,3/3] ipa: raspberrypi: Update sensor's RED/BLUE balance controls when present","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"b7d37a098e57505cde26f855d946747ed1a6f415","submitter":{"id":42,"url":"https://patchwork.libcamera.org/api/people/42/?format=json","name":"David Plowman","email":"david.plowman@raspberrypi.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/11873/mbox/","series":[{"id":1905,"url":"https://patchwork.libcamera.org/api/series/1905/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=1905","date":"2021-04-08T13:36:31","name":"Raspberry Pi: handle sensors more flexibly","version":2,"mbox":"https://patchwork.libcamera.org/series/1905/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/11873/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/11873/checks/","tags":{},"headers":{"Return-Path":"","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 56EFCBD16B\n\tfor ;\n\tThu, 8 Apr 2021 13:36:44 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 90EA768800;\n\tThu, 8 Apr 2021 15:36:43 +0200 (CEST)","from mail-wr1-x431.google.com (mail-wr1-x431.google.com\n\t[IPv6:2a00:1450:4864:20::431])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id CD4EB602CC\n\tfor ;\n\tThu, 8 Apr 2021 15:36:41 +0200 (CEST)","by mail-wr1-x431.google.com with SMTP id a4so2191288wrr.2\n\tfor ;\n\tThu, 08 Apr 2021 06:36:41 -0700 (PDT)","from pi4-davidp.lan (plowpeople3.plus.com. 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"If the sensor exposes V4L2_CID_RED_BALANCE and V4L2_CID_BLUE_BALANCE\ncontrols, assume it wants to be told the colour gains.\n\nWe want these to be applied as soon as possible so we add a new\nsetSensorControls signal to the IPA which passes these back to the\npipeline handler without using the DelayedControls mechanism.\n\nSigned-off-by: David Plowman \n---\n include/libcamera/ipa/raspberrypi.mojom | 1 +\n src/ipa/raspberrypi/raspberrypi.cpp | 13 +++++++++++++\n src/libcamera/pipeline/raspberrypi/raspberrypi.cpp | 10 ++++++++++\n 3 files changed, 24 insertions(+)","diff":"diff --git a/include/libcamera/ipa/raspberrypi.mojom b/include/libcamera/ipa/raspberrypi.mojom\nindex f38c2261..ebaf0a04 100644\n--- a/include/libcamera/ipa/raspberrypi.mojom\n+++ b/include/libcamera/ipa/raspberrypi.mojom\n@@ -117,6 +117,7 @@ interface IPARPiEventInterface {\n \tstatsMetadataComplete(uint32 bufferId, ControlList controls);\n \trunIsp(uint32 bufferId);\n \tembeddedComplete(uint32 bufferId);\n+\tsetSensorControls(ControlList controls);\n \tsetIspControls(ControlList controls);\n \tsetDelayedControls(ControlList controls);\n };\ndiff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp\nindex dad6395f..f95896d2 100644\n--- a/src/ipa/raspberrypi/raspberrypi.cpp\n+++ b/src/ipa/raspberrypi/raspberrypi.cpp\n@@ -1036,6 +1036,19 @@ void IPARPi::processStats(unsigned int bufferId)\n \n \t\tsetDelayedControls.emit(ctrls);\n \t}\n+\n+\tstruct AwbStatus awbStatus;\n+\tif (rpiMetadata_.Get(\"awb.status\", awbStatus) == 0 &&\n+\t sensorCtrls_.find(V4L2_CID_RED_BALANCE) != sensorCtrls_.end() &&\n+\t sensorCtrls_.find(V4L2_CID_BLUE_BALANCE) != sensorCtrls_.end()) {\n+\t\tControlList ctrls(sensorCtrls_);\n+\t\tctrls.set(V4L2_CID_RED_BALANCE,\n+\t\t\t static_cast(helper_->ColourGainCode(awbStatus.gain_r)));\n+\t\tctrls.set(V4L2_CID_BLUE_BALANCE,\n+\t\t\t static_cast(helper_->ColourGainCode(awbStatus.gain_b)));\n+\n+\t\tsetSensorControls.emit(ctrls);\n+\t}\n }\n \n void IPARPi::applyAWB(const struct AwbStatus *awbStatus, ControlList &ctrls)\ndiff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\nindex f22e286e..8dae4912 100644\n--- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n+++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n@@ -152,6 +152,7 @@ public:\n \tvoid statsMetadataComplete(uint32_t bufferId, const ControlList &controls);\n \tvoid runIsp(uint32_t bufferId);\n \tvoid embeddedComplete(uint32_t bufferId);\n+\tvoid setSensorControls(const ControlList &controls);\n \tvoid setIspControls(const ControlList &controls);\n \tvoid setDelayedControls(const ControlList &controls);\n \n@@ -1219,6 +1220,7 @@ int RPiCameraData::loadIPA(ipa::RPi::SensorConfig *sensorConfig)\n \tipa_->statsMetadataComplete.connect(this, &RPiCameraData::statsMetadataComplete);\n \tipa_->runIsp.connect(this, &RPiCameraData::runIsp);\n \tipa_->embeddedComplete.connect(this, &RPiCameraData::embeddedComplete);\n+\tipa_->setSensorControls.connect(this, &RPiCameraData::setSensorControls);\n \tipa_->setIspControls.connect(this, &RPiCameraData::setIspControls);\n \tipa_->setDelayedControls.connect(this, &RPiCameraData::setDelayedControls);\n \n@@ -1361,6 +1363,14 @@ void RPiCameraData::embeddedComplete(uint32_t bufferId)\n \thandleState();\n }\n \n+void RPiCameraData::setSensorControls(const ControlList &controls)\n+{\n+\tControlList ctrls = controls;\n+\n+\tunicam_[Unicam::Image].dev()->setControls(&ctrls);\n+\thandleState();\n+}\n+\n void RPiCameraData::setIspControls(const ControlList &controls)\n {\n \tControlList ctrls = controls;\n","prefixes":["libcamera-devel","v2","3/3"]}