If a metering/exposure/constraint mode is not listed in the sensor tuning file, and a control for the missing mode is set on the agc, we terminate the application with a fatal log message. Instead of this fatal termination, log a warning message and switch to the appropriate default mode so that the application continues running. Bug: https://github.com/raspberrypi/libcamera/issues/59 Bug: https://github.com/ayufan/camera-streamer/issues/67 Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>