- b -

• backgroundSourceType : nertc.RtcVirtualBackgroundSource
• bitrate : nertc.RtcVideoConfig
• bottom : nertc.RtcCameraFocusAndExposureInfo
• bottomLeft : nertc.RtcVideoCorrectionConfiguration
• bottomRight : nertc.RtcVideoCorrectionConfiguration
• buffer : nertc.RtcExternalVideoFrame , nertc.RtcVideoFrame
• bufferLength : nertc.RtcExternalVideoFrame
• bytesPerSample : nertc.RtcAudioFormat