# API 列表 (/zh-CN/api-reference/rtc/csharp-windows/rtc-interface-class) > For AI agents: see the complete documentation index at [llms.txt](/llms.txt). ## IRtcEngine [#irtcengine] RTC SDK 的基础接口类，实现实时音视频的主要功能。 ### 详情 [#详情] IRtcEngine 提供了 App 调用的主要方法。 在调用其他 API 之前，必须先调用 [CreateAgoraRtcEngine](/zh-CN/api-reference/rtc/csharp-windows/initialize#api_createagorartcengine) 创建 IRtcEngine 对象。 ### 相关参考 [#相关参考] - [AddVideoWatermark [2/2]](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/watermark#api_irtcengine_addvideowatermark2) - [AdjustAudioMixingPlayoutVolume](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_adjustaudiomixingplayoutvolume) - [AdjustAudioMixingPublishVolume](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_adjustaudiomixingpublishvolume) - [AdjustAudioMixingVolume](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_adjustaudiomixingvolume) - [AdjustCustomAudioPlayoutVolume](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-custom-capturenrendering#api_irtcengine_adjustcustomaudioplayoutvolume) - [AdjustCustomAudioPublishVolume](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-custom-capturenrendering#api_irtcengine_adjustcustomaudiopublishvolume) - [AdjustPlaybackSignalVolume](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_adjustplaybacksignalvolume) - [AdjustRecordingSignalVolume](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-capture#api_irtcengine_adjustrecordingsignalvolume) - [AdjustUserPlaybackSignalVolume](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#api_irtcengine_adjustuserplaybacksignalvolume) - [ClearVideoWatermarks](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/watermark#api_irtcengine_clearvideowatermarks) - [Complain](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_complain) - [CreateAgoraRtcEngine](/zh-CN/api-reference/rtc/csharp-windows/initialize#api_createagorartcengine) - [CreateCustomVideoTrack](/zh-CN/api-reference/rtc/csharp-windows/video/video-custom-capturenrendering#api_irtcengine_createcustomvideotrack) - [CreateDataStream [2/2]](/zh-CN/api-reference/rtc/csharp-windows/metadata/datastream#api_irtcengine_createdatastream2) - [CreateMediaPlayer](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-initialize#api_irtcengine_createmediaplayer) - [CreateMediaRecorder](/zh-CN/api-reference/rtc/csharp-windows/recording#api_irtcengine_createmediarecorder) - [DestroyCustomVideoTrack](/zh-CN/api-reference/rtc/csharp-windows/video/video-custom-capturenrendering#api_irtcengine_destroycustomvideotrack) - [DestroyMediaPlayer](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-initialize#api_irtcengine_destroymediaplayer) - [DisableAudio](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#api_irtcengine_disableaudio) - [DisableAudioSpectrumMonitor](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-spectrum#api_irtcengine_disableaudiospectrummonitor) - [DisableVideo](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#api_irtcengine_disablevideo) - [EnableAudio](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#api_irtcengine_enableaudio) - [EnableAudioSpectrumMonitor](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-spectrum#api_irtcengine_enableaudiospectrummonitor) - [EnableAudioVolumeIndication](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#api_irtcengine_enableaudiovolumeindication) - [EnableCameraCenterStage](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengine-enablecameracenterstage) - [EnableContentInspect](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/snapshot#api_irtcengine_enablecontentinspect) - [EnableCustomAudioLocalPlayback](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengine-enablecustomaudiolocalplayback) - [EnableDualStreamMode [2/2]](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/dual-stream#api_irtcengine_enabledualstreammode3) - [EnableEncryption](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_enableencryption) - [EnableExtension](/zh-CN/api-reference/rtc/csharp-windows/extension#api_irtcengine_enableextension) - [EnableInstantMediaRendering](/zh-CN/api-reference/rtc/csharp-windows/video/video-rendering#api_irtcengine_enableinstantmediarendering) - [EnableLocalAudio](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-capture#api_irtcengine_enablelocalaudio) - [EnableLocalVideo](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#api_irtcengine_enablelocalvideo) - [EnableSoundPositionIndication](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/sound-position#api_irtcengine_enablesoundpositionindication) - [EnableSpatialAudio](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_irtcengine_enablespatialaudio) - [EnableVideo](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#api_irtcengine_enablevideo) - [EnableVideoImageSource](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/image-source#api_irtcengine_enablevideoimagesource) - [EnableVirtualBackground](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/virtualbackground#api_irtcengine_enablevirtualbackground) - [EnableVoiceAITuner](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengine-enablevoiceaituner) - [EnableWebSdkInteroperability](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_enablewebsdkinteroperability) - [GetAudioMixingCurrentPosition](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_getaudiomixingcurrentposition) - [GetAudioMixingDuration](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_getaudiomixingduration) - [GetAudioMixingPlayoutVolume](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_getaudiomixingplayoutvolume) - [GetAudioMixingPublishVolume](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_getaudiomixingpublishvolume) - [GetAudioTrackCount](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_getaudiotrackcount) - [GetCallId](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_getcallid) - [GetConnectionState](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_getconnectionstate) - [GetCurrentMonotonicTimeInMs](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_getcurrentmonotonictimeinms) - [GetEffectCurrentPosition](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_geteffectcurrentposition) - [GetEffectDuration](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_geteffectduration) - [GetEffectsVolume](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_geteffectsvolume) - [GetErrorDescription](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_geterrordescription) - [GetExtensionProperty](/zh-CN/api-reference/rtc/csharp-windows/extension#api_irtcengine_getextensionproperty2) - [GetNetworkType](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_getnetworktype) - [GetNtpWallTimeInMs](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_getntpwalltimeinms) - [GetUserInfoByUid](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_getuserinfobyuid) - [GetUserInfoByUserAccount](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_getuserinfobyuseraccount) - [GetVersion](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_getversion) - [GetVolumeOfEffect](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_getvolumeofeffect) - [Initialize](/zh-CN/api-reference/rtc/csharp-windows/initialize#api_irtcengine_initialize) - [IsCameraCenterStageSupported](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengine-iscameracenterstagesupported) - [JoinChannel [2/2]](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_joinchannel2) - [JoinChannelWithUserAccount [2/2]](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_joinchannelwithuseraccount2) - [LeaveChannel [2/2]](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_leavechannel2) - [LoadExtensionProvider](/zh-CN/api-reference/rtc/csharp-windows/extension#api_irtcengine_loadextensionprovider) - [MuteAllRemoteAudioStreams](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_muteallremoteaudiostreams) - [MuteAllRemoteVideoStreams](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_muteallremotevideostreams) - [MuteLocalAudioStream](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_mutelocalaudiostream) - [MuteLocalVideoStream](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_mutelocalvideostream) - [MuteRecordingSignal](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-capture#api_irtcengine_muterecordingsignal) - [MuteRemoteAudioStream](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_muteremoteaudiostream) - [MuteRemoteVideoStream](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_muteremotevideostream) - [PauseAllChannelMediaRelay](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/channel-media-relay#api_irtcengine_pauseallchannelmediarelay) - [PauseAllEffects](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_pausealleffects) - [PauseAudioMixing](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_pauseaudiomixing) - [PauseEffect](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_pauseeffect) - [PlayAllEffects](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_playalleffects) - [PlayEffect](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_playeffect3) - [PreloadChannel](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_preloadchannel) - [PreloadChannelWithUserAccount](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_preloadchannelwithuseraccount) - [PreloadEffect](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_preloadeffect) - [QueryCodecCapability](/zh-CN/api-reference/rtc/csharp-windows/device-management/pc-video-device-management#api_irtcengine_querycodeccapability) - [QueryDeviceScore](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengine-querydevicescore) - [Rate](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_rate) - [RegisterAudioEncodedFrameObserver](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-encoded#api_irtcengine_registeraudioencodedframeobserver) - [RegisterAudioSpectrumObserver](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-spectrum#api_irtcengine_registeraudiospectrumobserver) - [RegisterExtension](/zh-CN/api-reference/rtc/csharp-windows/extension#api_irtcengine_registerextension) - [RegisterLocalUserAccount](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_registerlocaluseraccount) - [RegisterMediaMetadataObserver](/zh-CN/api-reference/rtc/csharp-windows/metadata/metadata-observer#api_irtcengine_registermediametadataobserver) - [Dispose](/zh-CN/api-reference/rtc/csharp-windows/initialize#api_irtcengine_release) - [RenewToken](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_renewtoken) - [ResumeAllChannelMediaRelay](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/channel-media-relay#api_irtcengine_resumeallchannelmediarelay) - [ResumeAllEffects](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_resumealleffects) - [ResumeAudioMixing](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_resumeaudiomixing) - [ResumeEffect](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_resumeeffect) - [SelectAudioTrack [1/2]](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_selectaudiotrack) - [SendCustomReportMessage](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_sendcustomreportmessage) - [SendStreamMessage](/zh-CN/api-reference/rtc/csharp-windows/metadata/datastream#api_irtcengine_sendstreammessage) - [SetAINSMode](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setainsmode) - [SetAVSyncSource](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_setavsyncsource) - [SetAdvancedAudioOptions](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setadvancedaudiooptions) - [SetAudioEffectParameters](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setaudioeffectparameters) - [SetAudioEffectPreset](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setaudioeffectpreset) - [SetAudioMixingDualMonoMode](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_setaudiomixingdualmonomode) - [SetAudioMixingPitch](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_setaudiomixingpitch) - [SetAudioMixingPlaybackSpeed](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengine-setaudiomixingplaybackspeed) - [SetAudioMixingPosition](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_setaudiomixingposition) - [SetAudioProfile [1/2]](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#api_irtcengine_setaudioprofile) - [SetAudioScenario](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#api_irtcengine_setaudioscenario) - [SetChannelProfile](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_setchannelprofile) - [SetClientRole [2/2]](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_setclientrole2) - [SetCloudProxy](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_setcloudproxy) - [SetColorEnhanceOptions](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/video-enhance-option#api_irtcengine_setcolorenhanceoptions) - [SetDirectCdnStreamingAudioConfiguration](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/cdn-streaming#api_irtcengine_setdirectcdnstreamingaudioconfiguration) - [SetDirectCdnStreamingVideoConfiguration](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/cdn-streaming#api_irtcengine_setdirectcdnstreamingvideoconfiguration) - [SetDualStreamMode [2/2]](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/dual-stream#api_irtcengine_setdualstreammode2) - [SetEarMonitoringAudioFrameParameters](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-raw#api_irtcengine_setearmonitoringaudioframeparameters) - [SetEffectPosition](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_seteffectposition) - [SetEffectsVolume](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_seteffectsvolume) - [SetExtensionProperty](/zh-CN/api-reference/rtc/csharp-windows/extension#api_irtcengine_setextensionproperty) - [SetExtensionProviderProperty](/zh-CN/api-reference/rtc/csharp-windows/extension#api_irtcengine_setextensionproviderproperty) - [SetExternalAudioSink](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-custom-capturenrendering#api_imediaengine_setexternalaudiosink) - [SetHeadphoneEQParameters](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_irtcengine_setheadphoneeqparameters) - [SetHeadphoneEQPreset](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_irtcengine_setheadphoneeqpreset) - [SetLocalRenderMode [2/2]](/zh-CN/api-reference/rtc/csharp-windows/video/video-rendering#api_irtcengine_setlocalrendermode2) - [SetLocalVideoMirrorMode](/zh-CN/api-reference/rtc/csharp-windows/video/video-rendering#api_irtcengine_setlocalvideomirrormode) - [SetLocalVoiceEqualization](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setlocalvoiceequalization) - [SetLocalVoiceFormant](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setlocalvoiceformant) - [SetLocalVoicePitch](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setlocalvoicepitch) - [SetLocalVoiceReverb](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setlocalvoicereverb) - [SetLogFile](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_setlogfile) - [SetLogFileSize](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_setlogfilesize) - [SetLogFilter](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_setlogfilter) - [SetLogLevel](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_setloglevel) - [SetLowlightEnhanceOptions](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/video-enhance-option#api_irtcengine_setlowlightenhanceoptions) - [SetMixedAudioFrameParameters](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-raw#api_irtcengine_setmixedaudioframeparameters) - [SetParameters [1/2]](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_setparameters) - [SetPlaybackAudioFrameBeforeMixingParameters](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-raw#api_irtcengine_setplaybackaudioframebeforemixingparameters) - [SetPlaybackAudioFrameParameters](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-raw#api_irtcengine_setplaybackaudioframeparameters) - [SetRecordingAudioFrameParameters](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-raw#api_irtcengine_setrecordingaudioframeparameters) - [SetRemoteDefaultVideoStreamType](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/dual-stream#api_irtcengine_setremotedefaultvideostreamtype) - [SetRemoteRenderMode](/zh-CN/api-reference/rtc/csharp-windows/video/video-rendering#api_irtcengine_setremoterendermode2) - [SetRemoteSubscribeFallbackOption](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengine-setremotesubscribefallbackoption) - [SetRemoteUserSpatialAudioParams](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_irtcengine_setremoteuserspatialaudioparams) - [SetRemoteVideoStreamType](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/dual-stream#api_irtcengine_setremotevideostreamtype) - [SetRemoteVideoSubscriptionOptions](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_setremotevideosubscriptionoptions) - [SetRemoteVoicePosition](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/sound-position#api_irtcengine_setremotevoiceposition) - [SetScreenCaptureContentHint](/zh-CN/api-reference/rtc/csharp-windows/video/screencapture#api_irtcengine_setscreencapturecontenthint) - [SetScreenCaptureScenario](/zh-CN/api-reference/rtc/csharp-windows/video/screencapture#api_irtcengine_setscreencapturescenario) - [SetSubscribeAudioAllowlist](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_setsubscribeaudioallowlist) - [SetSubscribeAudioBlocklist](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_setsubscribeaudioblocklist) - [SetSubscribeVideoAllowlist](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_setsubscribevideoallowlist) - [SetSubscribeVideoBlocklist](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengine_setsubscribevideoblocklist) - [SetVideoDenoiserOptions](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/video-enhance-option#api_irtcengine_setvideodenoiseroptions) - [SetVideoEncoderConfiguration](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#api_irtcengine_setvideoencoderconfiguration) - [SetVideoScenario](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#api_irtcengine_setvideoscenario) - [SetVoiceBeautifierParameters](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setvoicebeautifierparameters) - [SetVoiceBeautifierPreset](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setvoicebeautifierpreset) - [SetVoiceConversionPreset](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/audio-effect#api_irtcengine_setvoiceconversionpreset) - [SetVolumeOfEffect](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_setvolumeofeffect) - [StartAudioMixing [2/2]](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_startaudiomixing2) - [StartAudioRecording [3/3]](/zh-CN/api-reference/rtc/csharp-windows/recording#api_irtcengine_startaudiorecording3) - [StartCameraCapture](/zh-CN/api-reference/rtc/csharp-windows/video/camera-capture#api_irtcengine_startcameracapture) - [StartDirectCdnStreaming](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/cdn-streaming#api_irtcengine_startdirectcdnstreaming) - [StartEchoTest](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_startechotest3) - [StartLastmileProbeTest](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_startlastmileprobetest) - [StartLocalVideoTranscoder](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/local-transcoder#api_irtcengine_startlocalvideotranscoder) - [StartMediaRenderingTracing](/zh-CN/api-reference/rtc/csharp-windows/video/video-rendering#api_irtcengine_startmediarenderingtracing) - [StartOrUpdateChannelMediaRelay](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/channel-media-relay#api_irtcengine_startorupdatechannelmediarelay) - [StartPreview [2/2]](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#api_irtcengine_startpreview2) - [StartRtmpStreamWithTranscoding](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#api_irtcengine_startrtmpstreamwithtranscoding) - [StartRtmpStreamWithoutTranscoding](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#api_irtcengine_startrtmpstreamwithouttranscoding) - [StopAllEffects](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_stopalleffects) - [StopAudioMixing](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#api_irtcengine_stopaudiomixing) - [StopAudioRecording](/zh-CN/api-reference/rtc/csharp-windows/recording#api_irtcengine_stopaudiorecording) - [StopCameraCapture](/zh-CN/api-reference/rtc/csharp-windows/video/camera-capture#api_irtcengine_stopcameracapture) - [StopChannelMediaRelay](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/channel-media-relay#api_irtcengine_stopchannelmediarelay) - [StopDirectCdnStreaming](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/cdn-streaming#api_irtcengine_stopdirectcdnstreaming) - [StopEchoTest](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_stopechotest) - [StopEffect](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_stopeffect) - [StopLastmileProbeTest](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengine_stoplastmileprobetest) - [StopLocalVideoTranscoder](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/local-transcoder#api_irtcengine_stoplocalvideotranscoder) - [StopPreview [2/2]](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#api_irtcengine_stoppreview2) - [StopRtmpStream](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#api_irtcengine_stoprtmpstream) - [StopScreenCapture [1/2]](/zh-CN/api-reference/rtc/csharp-windows/video/screencapture#api_irtcengine_stopscreencapture) - [TakeSnapshot [1/2]](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/snapshot#api_irtcengine_takesnapshot) - [UnloadAllEffects](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_unloadalleffects) - [UnloadEffect](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#api_irtcengine_unloadeffect) - [UnRegisterAudioEncodedFrameObserver](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-encoded#api_irtcengine_unregisteraudioencodedframeobserver) - [UnRegisterAudioFrameObserver](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-raw#api_irtcengine_unregisteraudioframeobserver) - [UnregisterAudioSpectrumObserver](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-spectrum#api_irtcengine_unregisteraudiospectrumobserver) - [UnregisterMediaMetadataObserver](/zh-CN/api-reference/rtc/csharp-windows/metadata/metadata-observer#api_irtcengine_unregistermediametadataobserver) - [UnregisterVideoEncodedFrameObserver](/zh-CN/api-reference/rtc/csharp-windows/video/video-raw#api_imediaengine_unregistervideoencodedframeobserver) - [UpdateChannelMediaOptions](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_updatechannelmediaoptions) - [UpdateLocalTranscoderConfiguration](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/local-transcoder#api_irtcengine_updatelocaltranscoderconfiguration) - [UpdatePreloadChannelToken](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengine_updatepreloadchanneltoken) - [UpdateRtmpTranscoding](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#api_irtcengine_updatertmptranscoding) - [UpdateScreenCaptureParameters](/zh-CN/api-reference/rtc/csharp-windows/video/screencapture#api_irtcengine_updatescreencaptureparameters) - [UpdateScreenCaptureRegion](/zh-CN/api-reference/rtc/csharp-windows/video/screencapture#api_irtcengine_updatescreencaptureregion) ## IRtcEngineEx [#irtcengineex] 提供多频道方法的接口类。 ### 详情 [#详情-1] 继承自 [IRtcEngine](/zh-CN/api-reference/rtc/csharp-windows/rtc-interface-class#class_irtcengine)。 ### 相关参考 [#相关参考-1] - [AddVideoWatermarkEx](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/watermark#api_irtcengineex_addvideowatermarkex) - [AdjustUserPlaybackSignalVolumeEx](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#api_irtcengineex_adjustuserplaybacksignalvolumeex) - [ClearVideoWatermarkEx](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/watermark#api_irtcengineex_clearvideowatermarkex) - [CreateDataStreamEx [2/2]](/zh-CN/api-reference/rtc/csharp-windows/metadata/datastream#api_irtcengineex_createdatastreamex2) - [EnableAudioVolumeIndicationEx](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#api_irtcengineex_enableaudiovolumeindicationex) - [EnableContentInspectEx](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengineex-enablecontentinspectex) - [EnableDualStreamModeEx](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/dual-stream#api_irtcengineex_enabledualstreammodeex) - [EnableEncryptionEx](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengineex-enableencryptionex) - [GetCallIdEx](/zh-CN/api-reference/rtc/csharp-windows/api-irtcengineex-getcallidex) - [GetConnectionStateEx](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengineex_getconnectionstateex) - [JoinChannelEx](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengineex_joinchannelex) - [LeaveChannelEx [2/2]](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengineex_leavechannelex2) - [MuteAllRemoteAudioStreamsEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_muteallremoteaudiostreamsex) - [MuteAllRemoteVideoStreamsEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_muteallremotevideostreamsex) - [MuteLocalAudioStreamEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_mutelocalaudiostreamex) - [MuteLocalVideoStreamEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_mutelocalvideostreamex) - [MuteRemoteAudioStreamEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_muteremoteaudiostreamex) - [MuteRemoteVideoStreamEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_muteremotevideostreamex) - [PauseAllChannelMediaRelayEx](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/channel-media-relay#api_irtcengineex_pauseallchannelmediarelayex) - [ResumeAllChannelMediaRelayEx](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/channel-media-relay#api_irtcengineex_resumeallchannelmediarelayex) - [SendCustomReportMessageEx](/zh-CN/api-reference/rtc/csharp-windows/network#api_irtcengineex_sendcustomreportmessageex) - [SendStreamMessageEx](/zh-CN/api-reference/rtc/csharp-windows/metadata/datastream#api_irtcengineex_sendstreammessageex) - [SetDualStreamModeEx](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/dual-stream#api_irtcengineex_setdualstreammodeex) - [SetRemoteVideoStreamTypeEx](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/dual-stream#api_irtcengineex_setremotevideostreamtypeex) - [SetRemoteVideoSubscriptionOptionsEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_setremotevideosubscriptionoptionsex) - [SetRemoteVoicePositionEx](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/sound-position#api_irtcengineex_setremotevoicepositionex) - [SetSubscribeAudioAllowlistEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_setsubscribeaudioallowlistex) - [SetSubscribeAudioBlocklistEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_setsubscribeaudioblocklistex) - [SetSubscribeVideoAllowlistEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_setsubscribevideoallowlistex) - [SetSubscribeVideoBlocklistEx](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#api_irtcengineex_setsubscribevideoblocklistex) - [SetVideoEncoderConfigurationEx](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#api_irtcengineex_setvideoencoderconfigurationex) - [StartMediaRenderingTracingEx](/zh-CN/api-reference/rtc/csharp-windows/video/video-rendering#api_irtcengineex_startmediarenderingtracingex) - [StartOrUpdateChannelMediaRelayEx](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/channel-media-relay#api_irtcengineex_startorupdatechannelmediarelayex) - [StartRtmpStreamWithTranscodingEx](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#api_irtcengineex_startrtmpstreamwithtranscodingex) - [StartRtmpStreamWithoutTranscodingEx](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#api_irtcengineex_startrtmpstreamwithouttranscodingex) - [StopChannelMediaRelayEx](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/channel-media-relay#api_irtcengineex_stopchannelmediarelayex) - [StopRtmpStreamEx](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#api_irtcengineex_stoprtmpstreamex) - [TakeSnapshotEx [1/2]](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/snapshot#api_irtcengineex_takesnapshotex) - [UpdateChannelMediaOptionsEx](/zh-CN/api-reference/rtc/csharp-windows/channel#api_irtcengineex_updatechannelmediaoptionsex) - [UpdateRtmpTranscodingEx](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#api_irtcengineex_updatertmptranscodingex) ## IRtcEngineEventHandler [#irtcengineeventhandler] 接口类 IRtcEngineEventHandler 用于 SDK 向 App 发送事件通知，App 通过继承该接口类的方法获取 SDK 的事件通知。 ### 详情 [#详情-2] 该接口类的所有方法都有缺省（空）实现， App 可以根据需要只继承关心的事件。 :::caution 注意： - 在回调方法中，App 不应该做耗时或者调用可能会引起阻塞的 API（如 `sendMessage`），否则可能影响 SDK 的运行。 - SDK 不再捕获开发者在 IRtcEngineEventHandler 类回调中自行实现的代码逻辑中的异常。你需要自行处理该异常，否则异常出现时可能引起 App 崩溃。 ::: ### 相关参考 [#相关参考-2] - [OnActiveSpeaker](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onactivespeaker) - [OnAudioEffectFinished](/zh-CN/api-reference/rtc/csharp-windows/play/audio-effect-file#callback_irtcengineeventhandler_onaudioeffectfinished) - [OnAudioMixingFinished](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#callback_irtcengineeventhandler_onaudiomixingfinished) - [OnAudioMixingPositionChanged](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#callback_irtcengineeventhandler_onaudiomixingpositionchanged) - [OnAudioMixingStateChanged](/zh-CN/api-reference/rtc/csharp-windows/play/audio-mixing#callback_irtcengineeventhandler_onaudiomixingstatechanged) - [OnAudioPublishStateChanged](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#callback_irtcengineeventhandler_onaudiopublishstatechanged) - [OnAudioQuality](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onaudioquality) - [OnAudioSubscribeStateChanged](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#callback_irtcengineeventhandler_onaudiosubscribestatechanged) - [OnAudioVolumeIndication](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onaudiovolumeindication) - [OnChannelMediaRelayStateChanged](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/channel-media-relay#callback_irtcengineeventhandler_onchannelmediarelaystatechanged) - [OnClientRoleChangeFailed](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onclientrolechangefailed) - [OnClientRoleChanged](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onclientrolechanged) - [OnConnectionBanned](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onconnectionbanned) - [OnConnectionInterrupted](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onconnectioninterrupted) - [OnConnectionLost](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onconnectionlost) - [OnConnectionStateChanged](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onconnectionstatechanged) - [OnEncryptionError](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onencryptionerror) - [OnError](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onerror) - [OnExtensionErrorWithContext](/zh-CN/api-reference/rtc/csharp-windows/callback-irtcengineeventhandler-onextensionerrorwithcontext) - [OnExtensionEventWithContext](/zh-CN/api-reference/rtc/csharp-windows/callback-irtcengineeventhandler-onextensioneventwithcontext) - [OnExtensionStartedWithContext](/zh-CN/api-reference/rtc/csharp-windows/callback-irtcengineeventhandler-onextensionstartedwithcontext) - [OnExtensionStoppedWithContext](/zh-CN/api-reference/rtc/csharp-windows/callback-irtcengineeventhandler-onextensionstoppedwithcontext) - [OnFirstLocalAudioFramePublished](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onfirstlocalaudioframepublished) - [OnFirstLocalVideoFramePublished](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onfirstlocalvideoframepublished) - [OnFirstRemoteAudioDecoded](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onfirstremoteaudiodecoded) - [OnFirstRemoteAudioFrame](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onfirstremoteaudioframe) - [OnFirstRemoteVideoDecoded](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onfirstremotevideodecoded) - [OnFirstRemoteVideoFrame](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onfirstremotevideoframe) - [OnJoinChannelSuccess](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onjoinchannelsuccess) - [OnLastmileProbeResult](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onlastmileproberesult) - [OnLastmileQuality](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onlastmilequality) - [OnLeaveChannel](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onleavechannel) - [OnLocalAudioStateChanged](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onlocalaudiostatechanged) - [OnLocalAudioStats](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onlocalaudiostats) - [OnLocalUserRegistered](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onlocaluserregistered) - [OnLocalVideoStateChanged](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onlocalvideostatechanged) - [OnLocalVideoStats](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onlocalvideostats) - [OnLocalVideoTranscoderError](/zh-CN/api-reference/rtc/csharp-windows/video/video-codec/local-transcoder#callback_irtcengineeventhandler_onlocalvideotranscodererror) - [OnNetworkQuality](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onnetworkquality) - [OnNetworkTypeChanged](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onnetworktypechanged) - [OnPermissionError](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onpermissionerror) - [OnProxyConnected](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onproxyconnected) - [OnRejoinChannelSuccess](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onrejoinchannelsuccess) - [OnRemoteAudioStateChanged](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onremoteaudiostatechanged) - [OnRemoteAudioStats](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onremoteaudiostats) - [OnRemoteAudioTransportStats](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onremoteaudiotransportstats) - [OnRemoteSubscribeFallbackToAudioOnly](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onremotesubscribefallbacktoaudioonly) - [OnRemoteVideoStateChanged](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onremotevideostatechanged) - [OnRemoteVideoStats](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onremotevideostats) - [OnRemoteVideoTransportStats](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onremotevideotransportstats) - [OnRequestToken](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onrequesttoken) - [OnRtcStats](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onrtcstats) - [OnRtmpStreamingEvent](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#callback_irtcengineeventhandler_onrtmpstreamingevent) - [OnRtmpStreamingStateChanged](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#callback_irtcengineeventhandler_onrtmpstreamingstatechanged) - [OnSnapshotTaken](/zh-CN/api-reference/rtc/csharp-windows/video/video-prenpro/snapshot#callback_irtcengineeventhandler_onsnapshottaken) - [OnStreamMessage](/zh-CN/api-reference/rtc/csharp-windows/metadata/datastream#callback_irtcengineeventhandler_onstreammessage) - [OnStreamMessageError](/zh-CN/api-reference/rtc/csharp-windows/metadata/datastream#callback_irtcengineeventhandler_onstreammessageerror) - [OnTokenPrivilegeWillExpire](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_ontokenprivilegewillexpire) - [OnTranscodingUpdated](/zh-CN/api-reference/rtc/csharp-windows/cloud-media-relay/media-push#callback_irtcengineeventhandler_ontranscodingupdated) - [OnUplinkNetworkInfoUpdated](/zh-CN/api-reference/rtc/csharp-windows/network#callback_irtcengineeventhandler_onuplinknetworkinfoupdated) - [OnUserEnableLocalVideo](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onuserenablelocalvideo) - [OnUserEnableVideo](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onuserenablevideo) - [OnUserInfoUpdated](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onuserinfoupdated) - [OnUserJoined](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onuserjoined) - [OnUserMuteAudio](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-basic#callback_irtcengineeventhandler_onusermuteaudio) - [OnUserMuteVideo](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onusermutevideo) - [OnUserOffline](/zh-CN/api-reference/rtc/csharp-windows/channel#callback_irtcengineeventhandler_onuseroffline) - [OnVideoPublishStateChanged](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onvideopublishstatechanged) - [OnVideoRenderingTracingResult](/zh-CN/api-reference/rtc/csharp-windows/video/video-rendering#callback_irtcengineeventhandler_onvideorenderingtracingresult) - [OnVideoSizeChanged](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onvideosizechanged) - [OnVideoStopped](/zh-CN/api-reference/rtc/csharp-windows/video/video-basic#callback_irtcengineeventhandler_onvideostopped) - [OnVideoSubscribeStateChanged](/zh-CN/api-reference/rtc/csharp-windows/publishnsubscribe#callback_irtcengineeventhandler_onvideosubscribestatechanged) ## IMediaPlayer [#imediaplayer] 提供媒体播放器功能的类，支持多实例。 ### 相关参考 [#相关参考-3] - [AdjustPlayoutVolume](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-control#api_imediaplayer_adjustplayoutvolume) - [AdjustPublishSignalVolume](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-control#api_imediaplayer_adjustpublishsignalvolume) - [GetDuration](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getduration) - [GetMediaPlayerCacheManager](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-initialize#api_getmediaplayercachemanager) - [GetId](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getmediaplayerid) - [GetMute](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getmute) - [GetPlayoutVolume](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getplayoutvolume) - [GetPlayPosition](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getplayposition) - [GetPlaySrc](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getplaysrc) - [GetPublishSignalVolume](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getpublishsignalvolume) - [GetState](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getstate) - [GetStreamCount](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getstreamcount) - [GetStreamInfo](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-info#api_imediaplayer_getstreaminfo) - [Mute](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-control#api_imediaplayer_mute) - [Open](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-open#api_imediaplayer_open) - [OpenWithMediaSource](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-open#api_imediaplayer_openwithmediasource) - [Pause](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-control#api_imediaplayer_pause) - [Play](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-control#api_imediaplayer_play) - [PlayPreloadedSrc](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-control#api_imediaplayer_playpreloadedsrc) - [PreloadSrc](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-open#api_imediaplayer_preloadsrc) - [RegisterAudioFrameObserver [1/2]](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#api_imediaplayer_registeraudioframeobserver) - [RegisterAudioFrameObserver [2/2]](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#api_imediaplayer_registeraudioframeobserver2) - [Resume](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-control#api_imediaplayer_resume) - [Seek](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-control#api_imediaplayer_seek) - [SelectAudioTrack [2/2]](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-playnrender#api_imediaplayer_selectaudiotrack) - [SelectMultiAudioTrack](/zh-CN/api-reference/rtc/csharp-windows/api-imediaplayer-selectmultiaudiotrack) - [SetAudioPitch](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-playnrender#api_imediaplayer_setaudiopitch) - [SetAudioDualMonoMode](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-playnrender#api_imediaplayer_setaudiodualmonomode) - [SetLoopCount](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-playnrender#api_imediaplayer_setloopcount) - [SetPlaybackSpeed](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-playnrender#api_imediaplayer_setplaybackspeed) - [SetPlayerOption [1/2]](/zh-CN/api-reference/rtc/csharp-windows/api-imediaplayer-setplayeroption) - [setPlayerOption [2/2]](/zh-CN/api-reference/rtc/csharp-windows/api-imediaplayer-setplayeroption2) - [SetRenderMode](/zh-CN/api-reference/rtc/csharp-windows/video/video-rendering#api_imediaplayer_setrendermode) - [SetSpatialAudioParams](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_imediaplayer_setspatialaudioparams) - [SetView](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-playnrender#api_imediaplayer_setview) - [Stop](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-control#api_imediaplayer_stop) - [SwitchSrc](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-open#api_imediaplayer_switchsrc) - [UnloadSrc](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-open#api_imediaplayer_unloadsrc) - [UnregisterAudioFrameObserver](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#api_imediaplayer_unregisteraudioframeobserver) ## IAudioEncodedFrameObserver [#iaudioencodedframeobserver] 编码后音频的观测器。 ### 相关参考 [#相关参考-4] - [OnMixedAudioEncodedFrame](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-encoded#callback_iaudioencodedframeobserver_onmixedaudioencodedframe) - [OnPlaybackAudioEncodedFrame](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-encoded#callback_iaudioencodedframeobserver_onplaybackaudioencodedframe) - [OnRecordAudioEncodedFrame](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-encoded#callback_iaudioencodedframeobserver_onrecordaudioencodedframe) ## IAudioDeviceManager [#iaudiodevicemanager] 音频设备管理方法。 ## IVideoDeviceManager [#ivideodevicemanager] 视频设备管理方法。 ## IMediaPlayerAudioFrameObserver [#imediaplayeraudioframeobserver] 媒体播放器的音频数据观测器。 ### 详情 [#详情-3] 你可以调用 [RegisterAudioFrameObserver [2/2]](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#api_imediaplayer_registeraudioframeobserver2) 注册或取消注册 IMediaPlayerAudioFrameObserver 观测器。 ## IMediaPlayerCacheManager [#imediaplayercachemanager] 该类提供管理媒体播放器中缓存媒体文件的方法。 ### 相关参考 [#相关参考-5] - [EnableAutoRemoveCache](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_enableautoremovecache) - [GetCacheDir](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_getcachedir) - [GetCacheFileCount](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_getcachefilecount) - [GetMaxCacheFileCount](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_getmaxcachefilecount) - [GetMaxCacheFileSize](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_getmaxcachefilesize) - [RemoveAllCaches](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_removeallcaches) - [RemoveCacheByUri](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_removecachebyuri) - [RemoveOldCache](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_removeoldcache) - [SetCacheDir](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_setcachedir) - [SetMaxCacheFileCount](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_setmaxcachefilecount) - [SetMaxCacheFileSize](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer-cache#api_imediaplayercachemanager_setmaxcachefilesize) ## IMediaPlayerCustomDataProvider [#imediaplayercustomdataprovider] 提供打开自定义媒体资源文件的回调。 ## IMediaPlayerSourceObserver [#imediaplayersourceobserver] 提供媒体播放器的回调。 ### 相关参考 [#相关参考-6] - [OnAudioVolumeIndication](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#callback_imediaplayersourceobserver_onaudiovolumeindication) - [OnMetaData](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#callback_imediaplayersourceobserver_onmetadata) - [OnPlayBufferUpdated](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#callback_imediaplayersourceobserver_onplaybufferupdated) - [OnPlayerCacheStats](/zh-CN/api-reference/rtc/csharp-windows/callback-imediaplayersourceobserver-onplayercachestats) - [OnPlayerEvent](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#callback_imediaplayersourceobserver_onplayerevent) - [OnPlayerInfoUpdated](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#callback_imediaplayersourceobserver_onplayerinfoupdated) - [OnPlayerPlaybackStats](/zh-CN/api-reference/rtc/csharp-windows/callback-imediaplayersourceobserver-onplayerplaybackstats) - [OnPlayerSourceStateChanged](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#callback_imediaplayersourceobserver_onplayersourcestatechanged) - [OnPlayerSrcInfoChanged](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#callback_imediaplayersourceobserver_onplayersrcinfochanged) - [OnPositionChanged](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#callback_imediaplayersourceobserver_onpositionchanged) - [OnPreloadEvent](/zh-CN/api-reference/rtc/csharp-windows/play/mediaplayer/mediaplayer-observer#callback_imediaplayersourceobserver_onpreloadevent) ## IAudioFrameObserver [#iaudioframeobserver] 音频观测器。 ### 详情 [#详情-4] 你可以调用 [RegisterAudioFrameObserver](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-raw#api_imediaengine_registeraudioframeobserver) 注册或取消注册 IAudioFrameObserver 音频观测器。 ## IAudioSpectrumObserver [#iaudiospectrumobserver] 音频频谱观测器。 ### 相关参考 [#相关参考-7] - [OnLocalAudioSpectrum](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-spectrum#callback_iaudiospectrumobserver_onlocalaudiospectrum) - [OnRemoteAudioSpectrum](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-spectrum#callback_iaudiospectrumobserver_onremoteaudiospectrum) ## IMetadataObserver [#imetadataobserver] Metadata 观测器。 你可以调用 [RegisterMediaMetadataObserver](/zh-CN/api-reference/rtc/csharp-windows/metadata/metadata-observer#api_irtcengine_registermediametadataobserver) 注册或取消注册 IMetadataObserver 观测器。 ### 相关参考 [#相关参考-8] - [OnMetadataReceived](/zh-CN/api-reference/rtc/csharp-windows/metadata/metadata-observer#callback_imetadataobserver_onmetadatareceived) ## IVideoEncodedFrameObserver [#ivideoencodedframeobserver] 用于接收编码后的视频图像的类。 ### 相关参考 [#相关参考-9] - [OnEncodedVideoFrameReceived](/zh-CN/api-reference/rtc/csharp-windows/video/video-encoded#callback_ivideoencodedframeobserver_onencodedvideoframereceived) ## IVideoFrameObserver [#ivideoframeobserver] 视频观测器。 ### 详情 [#详情-5] 你可以调用 [RegisterVideoFrameObserver](/zh-CN/api-reference/rtc/csharp-windows/video/video-raw#api_imediaengine_registervideoframeobserver) 注册或取消注册 IVideoFrameObserver 视频观测器。 ### 相关参考 [#相关参考-10] - [OnCaptureVideoFrame](/zh-CN/api-reference/rtc/csharp-windows/video/video-raw#callback_ivideoframeobserver_oncapturevideoframe) - [OnPreEncodeVideoFrame](/zh-CN/api-reference/rtc/csharp-windows/video/video-raw#callback_ivideoframeobserver_onpreencodevideoframe) - [OnRenderVideoFrame](/zh-CN/api-reference/rtc/csharp-windows/video/video-raw#callback_ivideoframeobserver_onrendervideoframe) ## ILocalSpatialAudioEngine [#ilocalspatialaudioengine] 该类通过 SDK 计算用户坐标，实现空间音频。 ### 详情 [#详情-6] 调用该类下其他 API 前，你需要调用 [Initialize](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_ilocalspatialaudioengine_initialize) 方法初始化该类。 ### 相关参考 [#相关参考-11] - [ClearRemotePositions](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_ilocalspatialaudioengine_clearremotepositions) - [Initialize](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_ilocalspatialaudioengine_initialize) - [RemoveRemotePosition](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_ilocalspatialaudioengine_removeremoteposition) - [UpdateRemotePosition](/zh-CN/api-reference/rtc/csharp-windows/audio/audio-prenpost/spatial-audio#api_ilocalspatialaudioengine_updateremoteposition) ## IMediaRecorder [#imediarecorder] 提供本地及远端音视频录制功能的类。 ### 相关参考 [#相关参考-12] - [SetMediaRecorderObserver](/zh-CN/api-reference/rtc/csharp-windows/recording#api_imediarecorder_setmediarecorderobserver) - [StartRecording](/zh-CN/api-reference/rtc/csharp-windows/recording#api_imediarecorder_startrecording) - [StopRecording](/zh-CN/api-reference/rtc/csharp-windows/recording#api_imediarecorder_stoprecording) ## IMediaRecorderObserver [#imediarecorderobserver] 包含音视频录制的事件。 ### 相关参考 [#相关参考-13] - [OnRecorderStateChanged](/zh-CN/api-reference/rtc/csharp-windows/recording#callback_imediarecorderobserver_onrecorderstatechanged) - [OnRecorderInfoUpdated](/zh-CN/api-reference/rtc/csharp-windows/recording#callback_imediarecorderobserver_onrecorderinfoupdated) ## IMusicContentCenter [#imusiccontentcenter] [IMusicContentCenter](/zh-CN/api-reference/rtc/csharp-windows/rtc-interface-class#class_imusiccontentcenter) 接口类提供音乐内容中心的相关方法。 该接口类下的方法仅适用于 Android 和 iOS 平台。 ## IMusicContentCenterEventHandler [#imusiccontentcentereventhandler] [IMusicContentCenterEventHandler](/zh-CN/api-reference/rtc/csharp-windows/rtc-interface-class#class_imusiccontentcentereventhandler) 接口类，用于 SDK 向客户端发送音乐内容中心事件通知。 ## IMusicPlayer [#imusicplayer] 继承自 [IMediaPlayer](/zh-CN/api-reference/rtc/csharp-windows/rtc-interface-class#class_imediaplayer) 类，提供音乐播放器的相关方法。 ## VideoSurface [#videosurface] 该类包含视频渲染相关的 Unity 原生方法。