The camera capture preference.
0: (default) Self-adapts the camera output parameters to the system performance and network conditions to balance CPU consumption and video preview quality.
3: Allows you to customize the width and height of the video image captured by the local camera.
1: Prioritizes the system performance. The SDK chooses the dimension and frame rate of the local camera capture closest to those set by
2: Prioritizes the local preview quality. The SDK chooses higher camera output parameters to improve the local video preview quality. This option requires extra CPU and RAM usage for video pre-processing.