@brief Volume prompt interval in ms, the default value is 100.
- <= 0: Turn off prompt
- (0,100] Invalid interval value, and will be automatically reset to 100ms.
- > 100: the actual value of interval
@brief Whether to test audio. The device to be tested is the default audio device.
- true: Yes
- If you use internal capture, the device microphone will automatically turn on and onLocalAudioPropertiesReport will be triggered when the value of audioReportInterval is set to greater than 0, from which you can judge the working status of the microphone.
- If you choose custom capture, you also need to call pushExternalAudioFrame{@link #RTCEngine#pushExternalAudioFrame} to push the captured audio to the SDK.
- false: No
@brief Whether to test video. If you are using a desktop PC, the device to be tested is by default the first video device in the list.
- true: Yes
- If you use internal capture, the device camera will automatically turn on.
- If you choose custom capture, you also need to call pushExternalVideoFrame{@link #RTCEngine#pushExternalVideoFrame} to push the captured video to the SDK.
- false: No
@note The video is published with fixed parameters: resolution 640px × 360px, frame rate 15fps.