[PATCH v1 2/3] treewide: Use `YamlObject::find()`

Barnabás Pőcze pobrn at protonmail.com
Thu Dec 5 17:34:19 CET 2024


Replace some uses of `contains()` + `operator[]` with `find()`.
Using `find()` avoids the double lookup, as well as does away with
the need for specifying the key twice.

Signed-off-by: Barnabás Pőcze <pobrn at protonmail.com>
---
 src/android/camera_hal_config.cpp          | 19 ++++----
 src/ipa/ipu3/ipu3.cpp                      |  5 +-
 src/ipa/rkisp1/algorithms/dpcc.cpp         | 56 +++++++++++-----------
 src/ipa/rkisp1/rkisp1.cpp                  |  5 +-
 src/ipa/rpi/controller/controller.cpp      |  5 +-
 src/ipa/rpi/controller/rpi/af.cpp          | 32 ++++++-------
 src/ipa/rpi/controller/rpi/agc.cpp         |  8 ++--
 src/ipa/rpi/controller/rpi/agc_channel.cpp |  4 +-
 src/ipa/rpi/controller/rpi/alsc.cpp        | 10 ++--
 src/ipa/rpi/controller/rpi/awb.cpp         | 12 ++---
 src/ipa/rpi/controller/rpi/ccm.cpp         |  4 +-
 src/ipa/rpi/controller/rpi/geq.cpp         |  4 +-
 src/ipa/rpi/controller/rpi/hdr.cpp         | 27 ++++++-----
 src/ipa/simple/soft_simple.cpp             |  5 +-
 14 files changed, 99 insertions(+), 97 deletions(-)

diff --git a/src/android/camera_hal_config.cpp b/src/android/camera_hal_config.cpp
index 7ef451ef..6fde953d 100644
--- a/src/android/camera_hal_config.cpp
+++ b/src/android/camera_hal_config.cpp
@@ -73,15 +73,14 @@ int CameraHalConfig::Private::parseConfigFile(File &file,
 		return -EINVAL;
 
 	/* Parse property "cameras" */
-	if (!root->contains("cameras"))
+	auto *yamlObjectCameras = root->find("cameras");
+	if (!yamlObjectCameras)
 		return -EINVAL;
 
-	const YamlObject &yamlObjectCameras = (*root)["cameras"];
-
-	if (!yamlObjectCameras.isDictionary())
+	if (!yamlObjectCameras->isDictionary())
 		return -EINVAL;
 
-	for (const auto &[cameraId, configData] : yamlObjectCameras.asDict()) {
+	for (const auto &[cameraId, configData] : yamlObjectCameras->asDict()) {
 		if (parseCameraConfigData(cameraId, configData))
 			return -EINVAL;
 	}
@@ -112,10 +111,11 @@ int CameraHalConfig::Private::parseCameraConfigData(const std::string &cameraId,
 int CameraHalConfig::Private::parseLocation(const YamlObject &cameraObject,
 					    CameraConfigData &cameraConfigData)
 {
-	if (!cameraObject.contains("location"))
+	auto *loc = cameraObject.find("location");
+	if (!loc)
 		return -EINVAL;
 
-	std::string location = cameraObject["location"].get<std::string>("");
+	std::string location = loc->get<std::string>("");
 
 	if (location == "front")
 		cameraConfigData.facing = CAMERA_FACING_FRONT;
@@ -130,10 +130,11 @@ int CameraHalConfig::Private::parseLocation(const YamlObject &cameraObject,
 int CameraHalConfig::Private::parseRotation(const YamlObject &cameraObject,
 					    CameraConfigData &cameraConfigData)
 {
-	if (!cameraObject.contains("rotation"))
+	auto *rot = cameraObject.find("rotation");
+	if (!rot)
 		return -EINVAL;
 
-	int32_t rotation = cameraObject["rotation"].get<int32_t>(-1);
+	int32_t rotation = rot->get<int32_t>(-1);
 
 	if (rotation < 0 || rotation >= 360) {
 		LOG(HALConfig, Error)
diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp
index 44c98cbf..88b1bb81 100644
--- a/src/ipa/ipu3/ipu3.cpp
+++ b/src/ipa/ipu3/ipu3.cpp
@@ -335,13 +335,14 @@ int IPAIPU3::init(const IPASettings &settings,
 		return -EINVAL;
 	}
 
-	if (!data->contains("algorithms")) {
+	auto *algos = data->find("algorithms");
+	if (!algos) {
 		LOG(IPAIPU3, Error)
 			<< "Tuning file doesn't contain any algorithm";
 		return -EINVAL;
 	}
 
-	int ret = createAlgorithms(context_, (*data)["algorithms"]);
+	int ret = createAlgorithms(context_, *algos);
 	if (ret)
 		return ret;
 
diff --git a/src/ipa/rkisp1/algorithms/dpcc.cpp b/src/ipa/rkisp1/algorithms/dpcc.cpp
index 78946281..8946c1a7 100644
--- a/src/ipa/rkisp1/algorithms/dpcc.cpp
+++ b/src/ipa/rkisp1/algorithms/dpcc.cpp
@@ -80,39 +80,39 @@ int DefectPixelClusterCorrection::init([[maybe_unused]] IPAContext &context,
 		/* PG Method */
 		const YamlObject &pgObject = set["pg-factor"];
 
-		if (pgObject.contains("green")) {
+		if (auto *green = pgObject.find("green")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_PG_GREEN_ENABLE;
 
-			value = pgObject["green"].get<uint16_t>(0);
+			value = green->get<uint16_t>(0);
 			method.pg_fac |= RKISP1_CIF_ISP_DPCC_PG_FAC_G(value);
 		}
 
-		if (pgObject.contains("red-blue")) {
+		if (auto *redBlue = pgObject.find("red-blue")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_PG_RED_BLUE_ENABLE;
 
-			value = pgObject["red-blue"].get<uint16_t>(0);
+			value = redBlue->get<uint16_t>(0);
 			method.pg_fac |= RKISP1_CIF_ISP_DPCC_PG_FAC_RB(value);
 		}
 
 		/* RO Method */
 		const YamlObject &roObject = set["ro-limits"];
 
-		if (roObject.contains("green")) {
+		if (auto *green = roObject.find("green")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_RO_GREEN_ENABLE;
 
-			value = roObject["green"].get<uint16_t>(0);
+			value = green->get<uint16_t>(0);
 			config_.ro_limits |=
 				RKISP1_CIF_ISP_DPCC_RO_LIMITS_n_G(i, value);
 		}
 
-		if (roObject.contains("red-blue")) {
+		if (auto *redBlue = roObject.find("red-blue")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_RO_RED_BLUE_ENABLE;
 
-			value = roObject["red-blue"].get<uint16_t>(0);
+			value = redBlue->get<uint16_t>(0);
 			config_.ro_limits |=
 				RKISP1_CIF_ISP_DPCC_RO_LIMITS_n_RB(i, value);
 		}
@@ -121,39 +121,39 @@ int DefectPixelClusterCorrection::init([[maybe_unused]] IPAContext &context,
 		const YamlObject &rgObject = set["rg-factor"];
 		method.rg_fac = 0;
 
-		if (rgObject.contains("green")) {
+		if (auto *green = rgObject.find("green")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_RG_GREEN_ENABLE;
 
-			value = rgObject["green"].get<uint16_t>(0);
+			value = green->get<uint16_t>(0);
 			method.rg_fac |= RKISP1_CIF_ISP_DPCC_RG_FAC_G(value);
 		}
 
-		if (rgObject.contains("red-blue")) {
+		if (auto *redBlue = rgObject.find("red-blue")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_RG_RED_BLUE_ENABLE;
 
-			value = rgObject["red-blue"].get<uint16_t>(0);
+			value = redBlue->get<uint16_t>(0);
 			method.rg_fac |= RKISP1_CIF_ISP_DPCC_RG_FAC_RB(value);
 		}
 
 		/* RND Method */
 		const YamlObject &rndOffsetsObject = set["rnd-offsets"];
 
-		if (rndOffsetsObject.contains("green")) {
+		if (auto *green = rndOffsetsObject.find("green")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_RND_GREEN_ENABLE;
 
-			value = rndOffsetsObject["green"].get<uint16_t>(0);
+			value = green->get<uint16_t>(0);
 			config_.rnd_offs |=
 				RKISP1_CIF_ISP_DPCC_RND_OFFS_n_G(i, value);
 		}
 
-		if (rndOffsetsObject.contains("red-blue")) {
+		if (auto *redBlue = rndOffsetsObject.find("red-blue")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_RND_RED_BLUE_ENABLE;
 
-			value = rndOffsetsObject["red-blue"].get<uint16_t>(0);
+			value = redBlue->get<uint16_t>(0);
 			config_.rnd_offs |=
 				RKISP1_CIF_ISP_DPCC_RND_OFFS_n_RB(i, value);
 		}
@@ -161,20 +161,20 @@ int DefectPixelClusterCorrection::init([[maybe_unused]] IPAContext &context,
 		const YamlObject &rndThresholdObject = set["rnd-threshold"];
 		method.rnd_thresh = 0;
 
-		if (rndThresholdObject.contains("green")) {
+		if (auto *green = rndThresholdObject.find("green")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_RND_GREEN_ENABLE;
 
-			value = rndThresholdObject["green"].get<uint16_t>(0);
+			value = green->get<uint16_t>(0);
 			method.rnd_thresh |=
 				RKISP1_CIF_ISP_DPCC_RND_THRESH_G(value);
 		}
 
-		if (rndThresholdObject.contains("red-blue")) {
+		if (auto *redBlue = rndThresholdObject.find("red-blue")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_RND_RED_BLUE_ENABLE;
 
-			value = rndThresholdObject["red-blue"].get<uint16_t>(0);
+			value = redBlue->get<uint16_t>(0);
 			method.rnd_thresh |=
 				RKISP1_CIF_ISP_DPCC_RND_THRESH_RB(value);
 		}
@@ -183,20 +183,20 @@ int DefectPixelClusterCorrection::init([[maybe_unused]] IPAContext &context,
 		const YamlObject &lcThresholdObject = set["line-threshold"];
 		method.line_thresh = 0;
 
-		if (lcThresholdObject.contains("green")) {
+		if (auto *green = lcThresholdObject.find("green")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_LC_GREEN_ENABLE;
 
-			value = lcThresholdObject["green"].get<uint16_t>(0);
+			value = green->get<uint16_t>(0);
 			method.line_thresh |=
 				RKISP1_CIF_ISP_DPCC_LINE_THRESH_G(value);
 		}
 
-		if (lcThresholdObject.contains("red-blue")) {
+		if (auto *redBlue = lcThresholdObject.find("red-blue")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_LC_RED_BLUE_ENABLE;
 
-			value = lcThresholdObject["red-blue"].get<uint16_t>(0);
+			value = redBlue->get<uint16_t>(0);
 			method.line_thresh |=
 				RKISP1_CIF_ISP_DPCC_LINE_THRESH_RB(value);
 		}
@@ -204,20 +204,20 @@ int DefectPixelClusterCorrection::init([[maybe_unused]] IPAContext &context,
 		const YamlObject &lcTMadFactorObject = set["line-mad-factor"];
 		method.line_mad_fac = 0;
 
-		if (lcTMadFactorObject.contains("green")) {
+		if (auto *green = lcTMadFactorObject.find("green")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_LC_GREEN_ENABLE;
 
-			value = lcTMadFactorObject["green"].get<uint16_t>(0);
+			value = green->get<uint16_t>(0);
 			method.line_mad_fac |=
 				RKISP1_CIF_ISP_DPCC_LINE_MAD_FAC_G(value);
 		}
 
-		if (lcTMadFactorObject.contains("red-blue")) {
+		if (auto *redBlue = lcTMadFactorObject.find("red-blue")) {
 			method.method |=
 				RKISP1_CIF_ISP_DPCC_METHODS_SET_LC_RED_BLUE_ENABLE;
 
-			value = lcTMadFactorObject["red-blue"].get<uint16_t>(0);
+			value = redBlue->get<uint16_t>(0);
 			method.line_mad_fac |=
 				RKISP1_CIF_ISP_DPCC_LINE_MAD_FAC_RB(value);
 		}
diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
index 2ffdd99b..202b53b7 100644
--- a/src/ipa/rkisp1/rkisp1.cpp
+++ b/src/ipa/rkisp1/rkisp1.cpp
@@ -193,13 +193,14 @@ int IPARkISP1::init(const IPASettings &settings, unsigned int hwRevision,
 		return -EINVAL;
 	}
 
-	if (!data->contains("algorithms")) {
+	auto *algos = data->find("algorithms");
+	if (!algos) {
 		LOG(IPARkISP1, Error)
 			<< "Tuning file doesn't contain any algorithm";
 		return -EINVAL;
 	}
 
-	int ret = createAlgorithms(context_, (*data)["algorithms"]);
+	int ret = createAlgorithms(context_, *algos);
 	if (ret)
 		return ret;
 
diff --git a/src/ipa/rpi/controller/controller.cpp b/src/ipa/rpi/controller/controller.cpp
index e0131018..fbf31f23 100644
--- a/src/ipa/rpi/controller/controller.cpp
+++ b/src/ipa/rpi/controller/controller.cpp
@@ -109,14 +109,15 @@ int Controller::read(char const *filename)
 				return ret;
 		}
 	} else if (version < 3.0) {
-		if (!root->contains("algorithms")) {
+		auto *algos = root->find("algorithms");
+		if (!algos) {
 			LOG(RPiController, Error)
 				<< "Tuning file " << filename
 				<< " does not have an \"algorithms\" list!";
 			return -EINVAL;
 		}
 
-		for (auto const &rootAlgo : (*root)["algorithms"].asList())
+		for (auto const &rootAlgo : algos->asList())
 			for (auto const &[key, value] : rootAlgo.asDict()) {
 				int ret = createAlgorithm(key, value);
 				if (ret)
diff --git a/src/ipa/rpi/controller/rpi/af.cpp b/src/ipa/rpi/controller/rpi/af.cpp
index 2157eb94..c29bbaeb 100644
--- a/src/ipa/rpi/controller/rpi/af.cpp
+++ b/src/ipa/rpi/controller/rpi/af.cpp
@@ -97,39 +97,35 @@ void Af::SpeedDependentParams::read(const libcamera::YamlObject &params)
 
 int Af::CfgParams::read(const libcamera::YamlObject &params)
 {
-	if (params.contains("ranges")) {
-		auto &rr = params["ranges"];
-
-		if (rr.contains("normal"))
-			ranges[AfRangeNormal].read(rr["normal"]);
+	if (auto *rs = params.find("ranges")) {
+		if (auto *normal = rs->find("normal"))
+			ranges[AfRangeNormal].read(*normal);
 		else
 			LOG(RPiAf, Warning) << "Missing range \"normal\"";
 
 		ranges[AfRangeMacro] = ranges[AfRangeNormal];
-		if (rr.contains("macro"))
-			ranges[AfRangeMacro].read(rr["macro"]);
+		if (auto *macro = rs->find("macro"))
+			ranges[AfRangeMacro].read(*macro);
 
 		ranges[AfRangeFull].focusMin = std::min(ranges[AfRangeNormal].focusMin,
 							ranges[AfRangeMacro].focusMin);
 		ranges[AfRangeFull].focusMax = std::max(ranges[AfRangeNormal].focusMax,
 							ranges[AfRangeMacro].focusMax);
 		ranges[AfRangeFull].focusDefault = ranges[AfRangeNormal].focusDefault;
-		if (rr.contains("full"))
-			ranges[AfRangeFull].read(rr["full"]);
+		if (auto *full = rs->find("full"))
+			ranges[AfRangeFull].read(*full);
 	} else
 		LOG(RPiAf, Warning) << "No ranges defined";
 
-	if (params.contains("speeds")) {
-		auto &ss = params["speeds"];
-
-		if (ss.contains("normal"))
-			speeds[AfSpeedNormal].read(ss["normal"]);
+	if (auto *ss = params.find("speeds")) {
+		if (auto *normal = ss->find("normal"))
+			speeds[AfSpeedNormal].read(*normal);
 		else
 			LOG(RPiAf, Warning) << "Missing speed \"normal\"";
 
 		speeds[AfSpeedFast] = speeds[AfSpeedNormal];
-		if (ss.contains("fast"))
-			speeds[AfSpeedFast].read(ss["fast"]);
+		if (auto *fast = ss->find("fast"))
+			speeds[AfSpeedFast].read(*fast);
 	} else
 		LOG(RPiAf, Warning) << "No speeds defined";
 
@@ -138,8 +134,8 @@ int Af::CfgParams::read(const libcamera::YamlObject &params)
 	readNumber<uint32_t>(confClip, params, "conf_clip");
 	readNumber<uint32_t>(skipFrames, params, "skip_frames");
 
-	if (params.contains("map"))
-		map = params["map"].get<ipa::Pwl>(ipa::Pwl{});
+	if (auto *m = params.find("map"))
+		map = m->get<ipa::Pwl>(ipa::Pwl{});
 	else
 		LOG(RPiAf, Warning) << "No map defined";
 
diff --git a/src/ipa/rpi/controller/rpi/agc.cpp b/src/ipa/rpi/controller/rpi/agc.cpp
index c48fdf15..5d924ebf 100644
--- a/src/ipa/rpi/controller/rpi/agc.cpp
+++ b/src/ipa/rpi/controller/rpi/agc.cpp
@@ -37,18 +37,18 @@ int Agc::read(const libcamera::YamlObject &params)
 	 * When there is only a single channel we can read the old style syntax.
 	 * Otherwise we expect a "channels" keyword followed by a list of configurations.
 	 */
-	if (!params.contains("channels")) {
+	auto *channels = params.find("channels");
+	if (!channels) {
 		LOG(RPiAgc, Debug) << "Single channel only";
 		channelTotalExposures_.resize(1, 0s);
 		channelData_.emplace_back();
 		return channelData_.back().channel.read(params, getHardwareConfig());
 	}
 
-	const auto &channels = params["channels"].asList();
-	for (auto ch = channels.begin(); ch != channels.end(); ch++) {
+	for (const auto &ch : channels->asList()) {
 		LOG(RPiAgc, Debug) << "Read AGC channel";
 		channelData_.emplace_back();
-		int ret = channelData_.back().channel.read(*ch, getHardwareConfig());
+		int ret = channelData_.back().channel.read(ch, getHardwareConfig());
 		if (ret)
 			return ret;
 	}
diff --git a/src/ipa/rpi/controller/rpi/agc_channel.cpp b/src/ipa/rpi/controller/rpi/agc_channel.cpp
index 79c45973..50b9efd2 100644
--- a/src/ipa/rpi/controller/rpi/agc_channel.cpp
+++ b/src/ipa/rpi/controller/rpi/agc_channel.cpp
@@ -235,8 +235,8 @@ int AgcConfig::read(const libcamera::YamlObject &params)
 	if (ret)
 		return ret;
 
-	if (params.contains("channel_constraints")) {
-		ret = readChannelConstraints(channelConstraints, params["channel_constraints"]);
+	if (auto *cc = params.find("channel_constraints")) {
+		ret = readChannelConstraints(channelConstraints, *cc);
 		if (ret)
 			return ret;
 	}
diff --git a/src/ipa/rpi/controller/rpi/alsc.cpp b/src/ipa/rpi/controller/rpi/alsc.cpp
index 21edb819..5a1a702b 100644
--- a/src/ipa/rpi/controller/rpi/alsc.cpp
+++ b/src/ipa/rpi/controller/rpi/alsc.cpp
@@ -104,9 +104,9 @@ static int readCalibrations(std::vector<AlscCalibration> &calibrations,
 			    const libcamera::YamlObject &params,
 			    std::string const &name, const Size &size)
 {
-	if (params.contains(name)) {
+	if (auto *param = params.find(name)) {
 		double lastCt = 0;
-		for (const auto &p : params[name].asList()) {
+		for (const auto &p : param->asList()) {
 			auto value = p["ct"].get<double>();
 			if (!value)
 				return -EINVAL;
@@ -163,10 +163,10 @@ int Alsc::read(const libcamera::YamlObject &params)
 	config_.luminanceLut.resize(config_.tableSize, 1.0);
 	int ret = 0;
 
-	if (params.contains("corner_strength"))
+	if (params.find("corner_strength"))
 		ret = generateLut(config_.luminanceLut, params);
-	else if (params.contains("luminance_lut"))
-		ret = readLut(config_.luminanceLut, params["luminance_lut"]);
+	else if (auto *ll = params.find("luminance_lut"))
+		ret = readLut(config_.luminanceLut, *ll);
 	else
 		LOG(RPiAlsc, Warning)
 			<< "no luminance table - assume unity everywhere";
diff --git a/src/ipa/rpi/controller/rpi/awb.cpp b/src/ipa/rpi/controller/rpi/awb.cpp
index c277a176..2e6e295c 100644
--- a/src/ipa/rpi/controller/rpi/awb.cpp
+++ b/src/ipa/rpi/controller/rpi/awb.cpp
@@ -102,8 +102,8 @@ int AwbConfig::read(const libcamera::YamlObject &params)
 	convergenceFrames = params["convergence_frames"].get<unsigned int>(3);
 	speed = params["speed"].get<double>(0.05);
 
-	if (params.contains("ct_curve")) {
-		ret = readCtCurve(ctR, ctB, params["ct_curve"]);
+	if (auto *ct_curve = params.find("ct_curve")) {
+		ret = readCtCurve(ctR, ctB, *ct_curve);
 		if (ret)
 			return ret;
 		/* We will want the inverse functions of these too. */
@@ -111,8 +111,8 @@ int AwbConfig::read(const libcamera::YamlObject &params)
 		ctBInverse = ctB.inverse().first;
 	}
 
-	if (params.contains("priors")) {
-		for (const auto &p : params["priors"].asList()) {
+	if (auto *ps = params.find("priors")) {
+		for (const auto &p : ps->asList()) {
 			AwbPrior prior;
 			ret = prior.read(p);
 			if (ret)
@@ -128,8 +128,8 @@ int AwbConfig::read(const libcamera::YamlObject &params)
 			return -EINVAL;
 		}
 	}
-	if (params.contains("modes")) {
-		for (const auto &[key, value] : params["modes"].asDict()) {
+	if (auto *ms = params.find("modes")) {
+		for (const auto &[key, value] : ms->asDict()) {
 			ret = modes[key].read(value);
 			if (ret)
 				return ret;
diff --git a/src/ipa/rpi/controller/rpi/ccm.cpp b/src/ipa/rpi/controller/rpi/ccm.cpp
index 8607f152..5616e5f4 100644
--- a/src/ipa/rpi/controller/rpi/ccm.cpp
+++ b/src/ipa/rpi/controller/rpi/ccm.cpp
@@ -41,8 +41,8 @@ char const *Ccm::name() const
 
 int Ccm::read(const libcamera::YamlObject &params)
 {
-	if (params.contains("saturation")) {
-		config_.saturation = params["saturation"].get<ipa::Pwl>(ipa::Pwl{});
+	if (auto *s = params.find("saturation")) {
+		config_.saturation = s->get<ipa::Pwl>(ipa::Pwl{});
 		if (config_.saturation.empty())
 			return -EINVAL;
 	}
diff --git a/src/ipa/rpi/controller/rpi/geq.cpp b/src/ipa/rpi/controller/rpi/geq.cpp
index 40e7191b..6935f726 100644
--- a/src/ipa/rpi/controller/rpi/geq.cpp
+++ b/src/ipa/rpi/controller/rpi/geq.cpp
@@ -43,8 +43,8 @@ int Geq::read(const libcamera::YamlObject &params)
 		return -EINVAL;
 	}
 
-	if (params.contains("strength")) {
-		config_.strength = params["strength"].get<ipa::Pwl>(ipa::Pwl{});
+	if (auto *strength = params.find("strength")) {
+		config_.strength = strength->get<ipa::Pwl>(ipa::Pwl{});
 		if (config_.strength.empty())
 			return -EINVAL;
 	}
diff --git a/src/ipa/rpi/controller/rpi/hdr.cpp b/src/ipa/rpi/controller/rpi/hdr.cpp
index f3da8291..20b1ff4b 100644
--- a/src/ipa/rpi/controller/rpi/hdr.cpp
+++ b/src/ipa/rpi/controller/rpi/hdr.cpp
@@ -27,9 +27,10 @@ void HdrConfig::read(const libcamera::YamlObject &params, const std::string &mod
 {
 	name = modeName;
 
-	if (!params.contains("cadence"))
+	auto *c = params.find("cadence");
+	if (!c)
 		LOG(RPiHdr, Fatal) << "No cadence for HDR mode " << name;
-	cadence = params["cadence"].getList<unsigned int>().value();
+	cadence = c->getList<unsigned int>().value();
 	if (cadence.empty())
 		LOG(RPiHdr, Fatal) << "Empty cadence in HDR mode " << name;
 
@@ -41,10 +42,10 @@ void HdrConfig::read(const libcamera::YamlObject &params, const std::string &mod
 		channelMap[v.get<unsigned int>().value()] = k;
 
 	/* Lens shading related parameters. */
-	if (params.contains("spatial_gain_curve")) {
-		spatialGainCurve = params["spatial_gain_curve"].get<ipa::Pwl>(ipa::Pwl{});
-	} else if (params.contains("spatial_gain")) {
-		double spatialGain = params["spatial_gain"].get<double>(2.0);
+	if (auto *sgc = params.find("spatial_gain_curve")) {
+		spatialGainCurve = sgc->get<ipa::Pwl>(ipa::Pwl{});
+	} else if (auto *sg = params.find("spatial_gain")) {
+		double spatialGain = sg->get<double>(2.0);
 		spatialGainCurve.append(0.0, spatialGain);
 		spatialGainCurve.append(0.01, spatialGain);
 		spatialGainCurve.append(0.06, 1.0); /* maybe make this programmable? */
@@ -68,24 +69,24 @@ void HdrConfig::read(const libcamera::YamlObject &params, const std::string &mod
 	if (tonemapEnable)
 		tonemap = params["tonemap"].get<ipa::Pwl>(ipa::Pwl{});
 	speed = params["speed"].get<double>(1.0);
-	if (params.contains("hi_quantile_targets")) {
-		hiQuantileTargets = params["hi_quantile_targets"].getList<double>().value();
+	if (auto *hqt = params.find("hi_quantile_targets")) {
+		hiQuantileTargets = hqt->getList<double>().value();
 		if (hiQuantileTargets.empty() || hiQuantileTargets.size() % 2)
 			LOG(RPiHdr, Fatal) << "hi_quantile_targets much be even and non-empty";
 	} else
 		hiQuantileTargets = { 0.95, 0.65, 0.5, 0.28, 0.3, 0.25 };
 	hiQuantileMaxGain = params["hi_quantile_max_gain"].get<double>(1.6);
-	if (params.contains("quantile_targets")) {
-		quantileTargets = params["quantile_targets"].getList<double>().value();
+	if (auto *qt = params.find("quantile_targets")) {
+		quantileTargets = qt->getList<double>().value();
 		if (quantileTargets.empty() || quantileTargets.size() % 2)
 			LOG(RPiHdr, Fatal) << "quantile_targets much be even and non-empty";
 	} else
 		quantileTargets = { 0.2, 0.03, 1.0, 0.15 };
 	powerMin = params["power_min"].get<double>(0.65);
 	powerMax = params["power_max"].get<double>(1.0);
-	if (params.contains("contrast_adjustments")) {
-		contrastAdjustments = params["contrast_adjustments"].getList<double>().value();
-	} else
+	if (auto *ca = params.find("contrast_adjustments"))
+		contrastAdjustments = ca->getList<double>().value();
+	else
 		contrastAdjustments = { 0.5, 0.75 };
 
 	/* Read any stitch parameters. */
diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp
index e1b6d3af..ca3fe487 100644
--- a/src/ipa/simple/soft_simple.cpp
+++ b/src/ipa/simple/soft_simple.cpp
@@ -114,12 +114,13 @@ int IPASoftSimple::init(const IPASettings &settings,
 	unsigned int version = (*data)["version"].get<uint32_t>(0);
 	LOG(IPASoft, Debug) << "Tuning file version " << version;
 
-	if (!data->contains("algorithms")) {
+	auto *algos = data->find("algorithms");
+	if (!algos) {
 		LOG(IPASoft, Error) << "Tuning file doesn't contain algorithms";
 		return -EINVAL;
 	}
 
-	int ret = createAlgorithms(context_, (*data)["algorithms"]);
+	int ret = createAlgorithms(context_, *algos);
 	if (ret)
 		return ret;
 
-- 
2.47.1




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