@brief Set the background color of the canvas which is not filled with video frame. The range is [0x00000000, 0xFFFFFFFF]. The default is 0x00000000. The Alpha index is ignored.
@brief Video frame rotation angle. See ByteRTCVideoRotation{@link #ByteRTCVideoRotation}. The default value is 0, which means no rotation is applied.
This parameter only applies to remote video and does not affect local video settings.