1: The brightness level of the video image is too bright.
2: The brightness level of the video image is too dark.
-1: The SDK does not detect the brightness level of the video image.
Wait a few seconds to get the brightness level from
CAPTURE_BRIGHTNESS_LEVEL_TYPE
in the next callback.
0: The brightness level of the video image is normal.
The brightness level of the video image captured by the local camera.
v3.3.1