libcamera: camera: Log proposed configuration in streamConfiguration()

The IPU3 and RKISP1 pipeline handlers log the camera configuration they
propose in their streamConfiguration() methods. Other pipeline handlers
are expected to log similar information, move it to the Camera class.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

src/libcamera/camera.cpp

@@ -546,7 +546,20 @@ Camera::streamConfiguration(const std::vector<StreamUsage> &usages)
 	if (disconnected_ || !usages.size() || usages.size() > streams_.size())
 		return CameraConfiguration();
 
-	return pipe_->streamConfiguration(this, usages);
+	CameraConfiguration config = pipe_->streamConfiguration(this, usages);
+
+	std::ostringstream msg("streams configuration:");
+	unsigned int index = 0;
+
+	for (Stream *stream : config) {
+		const StreamConfiguration &cfg = config[stream];
+		msg << " (" << index << ") " << cfg.toString();
+		index++;
+	}
+
+	LOG(Camera, Debug) << msg.str();
+
+	return config;
 }
 
 /**