Global Variable

AVCaptureSystemPressureLevelShutdown

System pressure is beyond critical, so the capture system has shut down.

Declaration

const AVCaptureSystemPressureLevel AVCaptureSystemPressureLevelShutdown;

Discussion

When system pressure reaches this level, the capture system automatically shuts down, causing a session interruption. Use the AVCaptureSessionInterruptionSystemPressureStateKey in the interruption notification's userInfo dictionary to find details about the system pressure factors causing the interruption.

See Also

System Pressure Levels

AVCaptureSystemPressureLevelNominal

System pressure level is normal (not pressured).

AVCaptureSystemPressureLevelFair

System pressure is slightly elevated.

AVCaptureSystemPressureLevelSerious

System pressure is highly elevated. Capture performance may be impacted. Frame rate throttling is advised.

AVCaptureSystemPressureLevelCritical

System pressure is critically elevated. Capture quality and performance are significantly impacted. Frame rate throttling is highly advised.