cam: Store camera session pointer in CamApp class

Move the local CameraSession variable from the CamApp::run() function to
a member variable of the CamApp class, created in CamApp::init(). This
is a first step towards moving code to the CameraSession class.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

2 files changed, 12 insertions, 9 deletions

diff --git a/src/cam/camera_session.cpp b/src/cam/camera_session.cpp
index 1fb7c1b6..7bb75e86 100644
--- a/src/cam/camera_session.cpp
+++ b/src/cam/camera_session.cpp
@@ -34,11 +34,6 @@ int CameraSession::start(const OptionsParser::Options &options)
 	captureLimit_ = options[OptCapture].toInteger();
 	printMetadata_ = options.isSet(OptMetadata);
 
-	if (!camera_) {
-		std::cout << "Can't capture without a camera" << std::endl;
-		return -ENODEV;
-	}
-
 	ret = camera_->configure(config_);
 	if (ret < 0) {
 		std::cout << "Failed to configure camera" << std::endl;
diff --git a/src/cam/main.cpp b/src/cam/main.cpp
index b13230c3..2c6500a5 100644
--- a/src/cam/main.cpp
+++ b/src/cam/main.cpp
@@ -51,8 +51,11 @@ private:
 	static CamApp *app_;
 	OptionsParser::Options options_;
 	CameraManager *cm_;
+
 	std::shared_ptr<Camera> camera_;
 	std::unique_ptr<libcamera::CameraConfiguration> config_;
+	std::unique_ptr<CameraSession> session_;
+
 	EventLoop loop_;
 
 	bool strictFormats_;
@@ -127,6 +130,9 @@ int CamApp::init(int argc, char **argv)
 			cleanup();
 			return ret;
 		}
+
+		session_ = std::make_unique<CameraSession>(camera_, config_.get());
+		session_->captureDone.connect(this, &CamApp::captureDone);
 	}
 
 	if (options_.isSet(OptMonitor)) {
@@ -369,10 +375,12 @@ int CamApp::run()
 	}
 
 	if (options_.isSet(OptCapture)) {
-		CameraSession session(camera_, config_.get());
-		session.captureDone.connect(this, &CamApp::captureDone);
+		if (!camera_) {
+			std::cout << "Can't capture without a camera" << std::endl;
+			return -ENODEV;
+		}
 
-		ret = session.start(options_);
+		ret = session_->start(options_);
 		if (ret) {
 			std::cout << "Failed to start camera session" << std::endl;
 			return ret;
@@ -380,7 +388,7 @@ int CamApp::run()
 
 		loop_.exec();
 
-		session.stop();
+		session_->stop();
 		return 0;
 	}