{ "channel":[ { "chan_id":0, "nf_level":50, "nf_mode":0, "spatial_strength_level":50, "time_strength_level":50, "wdr_level":50, "wdr_mode":2, "exposure":{ "aperture_type":0, "autoap_sensitivity":50, "enable":0, "min_duration":60, "refer_brightness":50 } } ] }