Content_enhancement_tuning

Name	Type	Description
global_brightness_offset	integer	The larger the brighter the reshaped image maximum: 1024 default: 512
global_brightness_slope	number	The larger the greater difference in brightness between bright frame and dark frame minimum: 0.75 maximum: 1 default: 0.875
global_brightness_min	integer	The higher value will limit the global brightness low bound higher maximum: 4096
global_brightness_max	integer	The lower value will limit the global brightness high bound lower to avoid over bright scene maximum: 4096 default: 2048
contrast_level	number	The larger the higher contrast, suggested range: Mobile Device: 3.0 - 5.0, TV: 1.0 - 3.0 maximum: 8 default: 5
saturation_adjust	integer	The larger the more saturation, the adjustment is in a wider range minimum: -9 maximum: 9
computation_efficiency	enum                           1 2 4 8	The larger the faster, but the enhancement result may be less quality, must be a power of 2 default: 1
letterbox_proc_mode	enum                           auto predefined disable	letterbox processing mode for libcec to run on default: auto
active_region_topY	integer	Coordinate (inclusive) of the fixed rectangular active region (non-letterbox region)
active_region_botY	integer	Coordinate (inclusive) of the fixed rectangular active region (non-letterbox region) default: 1079
active_region_leftX	integer	Coordinate (inclusive) of the fixed rectangular active region (non-letterbox region)
active_region_rightX	integer	Coordinate (inclusive) of the fixed rectangular active region (non-letterbox region) default: 1919
enable_face_proc	boolean	Flag for performing face region processing default: true
face_contrast_reduction	number	The larger the smoother the face appearance maximum: 1.5 default: 1
face_saturation_reduction	integer	The larger the less saturated the face appearance minimum: -4096 maximum: 4096 default: 1024
face_brightness_offset	integer	The larger the brighter the face appearance minimum: -4096 maximum: 4096
face_computation_efficiency	enum                           1 2 4	The larger the faster, but the enhancement result may be less quality, must be a power of 2 default: 2
enable_adaptive_debanding	boolean	Flag for performing adaptive debanding default: true
multi_thread_ratio_num	number	multi-thread parallel frames ratio or number maximum: 14 default: 0.4