[v6,4/5] pipeline: simple: Create DelayedControls instance once only
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Message ID 20250305135256.801351-5-stanislaw.gruszka@linux.intel.com
State New
Headers show
Series
  • libcamera: start frame events changes
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Commit Message

Stanislaw Gruszka March 5, 2025, 1:52 p.m. UTC 
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The DelayedControls instance for the camera sensor is created in
SimplePipelineHandler::configure(). Constant deletion and reconstruction
of a new object is unnecessary, as the control delays are an intrinsic
property of the sensor and are known at initialization time. Move the
DelayedControls creation to the SimpleCameraData class constructor.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
---
 src/libcamera/pipeline/simple/simple.cpp | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

Patch
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diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
index 7be49017..58aa3dba 100644
--- a/src/libcamera/pipeline/simple/simple.cpp
+++ b/src/libcamera/pipeline/simple/simple.cpp
@@ -489,6 +489,13 @@  SimpleCameraData::SimpleCameraData(SimplePipelineHandler *pipe,
 	if (!sensor_)
 		return;
 
+	const CameraSensorProperties::SensorDelays &delays = sensor_->sensorDelays();
+	std::unordered_map<uint32_t, DelayedControls::ControlParams> params = {
+		{ V4L2_CID_ANALOGUE_GAIN, { delays.gainDelay, false } },
+		{ V4L2_CID_EXPOSURE, { delays.exposureDelay, false } },
+	};
+	delayedCtrls_ = std::make_unique<DelayedControls>(sensor_->device(), params);
+
 	LOG(SimplePipeline, Debug)
 		<< "Found pipeline: "
 		<< utils::join(entities_, " -> ",
@@ -1302,15 +1309,6 @@  int SimplePipelineHandler::configure(Camera *camera, CameraConfiguration *c)
 	if (outputCfgs.empty())
 		return 0;
 
-	const CameraSensorProperties::SensorDelays &delays = data->sensor_->sensorDelays();
-	std::unordered_map<uint32_t, DelayedControls::ControlParams> params = {
-		{ V4L2_CID_ANALOGUE_GAIN, { delays.gainDelay, false } },
-		{ V4L2_CID_EXPOSURE, { delays.exposureDelay, false } },
-	};
-	data->delayedCtrls_ =
-		std::make_unique<DelayedControls>(data->sensor_->device(),
-						  params);
-
 	StreamConfiguration inputCfg;
 	inputCfg.pixelFormat = pipeConfig->captureFormat;
 	inputCfg.size = pipeConfig->captureSize;