IAgoraRtcEngineEx.h

Go to the documentation of this file.

//
//  Agora Media SDK
//
//  Created by Sting Feng in 2015-05.
//  Updated by Tommy Miao in 2020-11.
//  Copyright (c) 2015 Agora IO. All rights reserved.
//
#pragma once
 
#include "IAgoraRtcEngine.h"
 
namespace agora {
namespace rtc {
 
// OPTIONAL_ENUM_CLASS RTC_EVENT;
 
struct RtcConnection {
  const char* channelId;
  uid_t localUid;
 
  RtcConnection() : channelId(NULL), localUid(0) {}
  RtcConnection(const char* channel_id, uid_t local_uid)
      : channelId(channel_id), localUid(local_uid) {}
};
 
class IRtcEngineEventHandlerEx : public IRtcEngineEventHandler {
 public:
  using IRtcEngineEventHandler::eventHandlerType;
  using IRtcEngineEventHandler::onJoinChannelSuccess;
  using IRtcEngineEventHandler::onRejoinChannelSuccess;
  using IRtcEngineEventHandler::onAudioQuality;
  using IRtcEngineEventHandler::onAudioVolumeIndication;
  using IRtcEngineEventHandler::onLeaveChannel;
  using IRtcEngineEventHandler::onRtcStats;
  using IRtcEngineEventHandler::onNetworkQuality;
  using IRtcEngineEventHandler::onIntraRequestReceived;
  using IRtcEngineEventHandler::onFirstLocalVideoFramePublished;
  using IRtcEngineEventHandler::onFirstRemoteVideoDecoded;
  using IRtcEngineEventHandler::onVideoSizeChanged;
  using IRtcEngineEventHandler::onLocalVideoStateChanged;
  using IRtcEngineEventHandler::onRemoteVideoStateChanged;
  using IRtcEngineEventHandler::onFirstRemoteVideoFrame;
  using IRtcEngineEventHandler::onUserJoined;
  using IRtcEngineEventHandler::onUserOffline;
  using IRtcEngineEventHandler::onUserMuteAudio;
  using IRtcEngineEventHandler::onUserMuteVideo;
  using IRtcEngineEventHandler::onUserEnableVideo;
  using IRtcEngineEventHandler::onUserEnableLocalVideo;
  using IRtcEngineEventHandler::onUserStateChanged;
  using IRtcEngineEventHandler::onLocalAudioStats;
  using IRtcEngineEventHandler::onRemoteAudioStats;
  using IRtcEngineEventHandler::onLocalVideoStats;
  using IRtcEngineEventHandler::onRemoteVideoStats;
  using IRtcEngineEventHandler::onConnectionLost;
  using IRtcEngineEventHandler::onConnectionInterrupted;
  using IRtcEngineEventHandler::onConnectionBanned;
  using IRtcEngineEventHandler::onStreamMessage;
  using IRtcEngineEventHandler::onStreamMessageError;
  using IRtcEngineEventHandler::onRdtMessage;
  using IRtcEngineEventHandler::onRdtStateChanged;
  using IRtcEngineEventHandler::onMediaControlMessage;
  using IRtcEngineEventHandler::onRequestToken;
  using IRtcEngineEventHandler::onTokenPrivilegeWillExpire;
  using IRtcEngineEventHandler::onLicenseValidationFailure;
  using IRtcEngineEventHandler::onFirstLocalAudioFramePublished;
  using IRtcEngineEventHandler::onFirstRemoteAudioFrame;
  using IRtcEngineEventHandler::onFirstRemoteAudioDecoded;
  using IRtcEngineEventHandler::onLocalAudioStateChanged;
  using IRtcEngineEventHandler::onRemoteAudioStateChanged;
  using IRtcEngineEventHandler::onActiveSpeaker;
  using IRtcEngineEventHandler::onClientRoleChanged;
  using IRtcEngineEventHandler::onClientRoleChangeFailed;
  using IRtcEngineEventHandler::onRemoteAudioTransportStats;
  using IRtcEngineEventHandler::onRemoteVideoTransportStats;
  using IRtcEngineEventHandler::onConnectionStateChanged;
  using IRtcEngineEventHandler::onNetworkTypeChanged;
  using IRtcEngineEventHandler::onEncryptionError;
  using IRtcEngineEventHandler::onUploadLogResult;
  using IRtcEngineEventHandler::onUserInfoUpdated;
  using IRtcEngineEventHandler::onUserAccountUpdated;
  using IRtcEngineEventHandler::onAudioSubscribeStateChanged;
  using IRtcEngineEventHandler::onVideoSubscribeStateChanged;
  using IRtcEngineEventHandler::onAudioPublishStateChanged;
  using IRtcEngineEventHandler::onVideoPublishStateChanged;
  using IRtcEngineEventHandler::onSnapshotTaken;
  using IRtcEngineEventHandler::onVideoRenderingTracingResult;
  using IRtcEngineEventHandler::onSetRtmFlagResult;
  using IRtcEngineEventHandler::onTranscodedStreamLayoutInfo;
  using IRtcEngineEventHandler::onAudioMetadataReceived;
  using IRtcEngineEventHandler::onMultipathStats;
  using IRtcEngineEventHandler::onRenewTokenResult;
 
  virtual const char* eventHandlerType() const { return "event_handler_ex"; }
 
  virtual void onJoinChannelSuccess(const RtcConnection& connection, int elapsed) {
    (void)connection;
    (void)elapsed;
  }
 
  virtual void onRejoinChannelSuccess(const RtcConnection& connection, int elapsed) {
    (void)connection;
    (void)elapsed;
  }
 
  virtual void onAudioQuality(const RtcConnection& connection, uid_t remoteUid, int quality, unsigned short delay, unsigned short lost) __deprecated {
    (void)connection;
    (void)remoteUid;
    (void)quality;
    (void)delay;
    (void)lost;
  }
  virtual void onAudioVolumeIndication(const RtcConnection& connection, const AudioVolumeInfo* speakers,
                                       unsigned int speakerNumber, int totalVolume) {
    (void)connection;
    (void)speakers;
    (void)speakerNumber;
    (void)totalVolume;
  }
 
  virtual void onLeaveChannel(const RtcConnection& connection, const RtcStats& stats) {
    (void)connection;
    (void)stats;
  }
 
  virtual void onRtcStats(const RtcConnection& connection, const RtcStats& stats) {
    (void)connection;
    (void)stats;
  }
 
  virtual void onNetworkQuality(const RtcConnection& connection, uid_t remoteUid, int txQuality, int rxQuality) {
    (void)connection;
    (void)remoteUid;
    (void)txQuality;
    (void)rxQuality;
  }
 
  virtual void onIntraRequestReceived(const RtcConnection& connection) {
    (void)connection;
  }
 
  virtual void onFirstLocalVideoFramePublished(const RtcConnection& connection, int elapsed) {
    (void)connection;
    (void)elapsed;
  }
 
  virtual void onFirstRemoteVideoDecoded(const RtcConnection& connection, uid_t remoteUid, int width, int height, int elapsed) {
    (void)connection;
    (void)remoteUid;
    (void)width;
    (void)height;
    (void)elapsed;
  }
 
  virtual void onVideoSizeChanged(const RtcConnection& connection, VIDEO_SOURCE_TYPE sourceType, uid_t uid, int width, int height, int rotation) {
    (void)connection;
    (void)sourceType;
    (void)uid;
    (void)width;
    (void)height;
    (void)rotation;
  }
 
  virtual void onRemoteVideoStateChanged(const RtcConnection& connection, uid_t remoteUid, REMOTE_VIDEO_STATE state, REMOTE_VIDEO_STATE_REASON reason, int elapsed) {
    (void)connection;
    (void)remoteUid;
    (void)state;
    (void)reason;
    (void)elapsed;
  }
 
  virtual void onFirstRemoteVideoFrame(const RtcConnection& connection, uid_t remoteUid, int width, int height, int elapsed) {
    (void)connection;
    (void)remoteUid;
    (void)width;
    (void)height;
    (void)elapsed;
  }
 
  virtual void onUserJoined(const RtcConnection& connection, uid_t remoteUid, int elapsed) {
    (void)connection;
    (void)remoteUid;
    (void)elapsed;
  }
 
  virtual void onUserOffline(const RtcConnection& connection, uid_t remoteUid, USER_OFFLINE_REASON_TYPE reason) {
    (void)connection;
    (void)remoteUid;
    (void)reason;
  }
 
 virtual void onUserMuteAudio(const RtcConnection& connection, uid_t remoteUid, bool muted) __deprecated {
    (void)connection;
    (void)remoteUid;
    (void)muted;
  }
 
 virtual void onUserMuteVideo(const RtcConnection& connection, uid_t remoteUid, bool muted) {
    (void)connection;
    (void)remoteUid;
    (void)muted;
  }
 
 virtual void onUserEnableVideo(const RtcConnection& connection, uid_t remoteUid, bool enabled) {
    (void)connection;
    (void)remoteUid;
    (void)enabled;
  }
 
  virtual void onUserEnableLocalVideo(const RtcConnection& connection, uid_t remoteUid, bool enabled) __deprecated {
    (void)connection;
    (void)remoteUid;
    (void)enabled;
  }
 
  virtual void onUserStateChanged(const RtcConnection& connection, uid_t remoteUid, uint32_t state) {
    (void)connection;
    (void)remoteUid;
    (void)state;
  }
 
  virtual void onLocalAudioStats(const RtcConnection& connection, const LocalAudioStats& stats) {
    (void)connection;
    (void)stats;
  }
 
  virtual void onRemoteAudioStats(const RtcConnection& connection, const RemoteAudioStats& stats) {
    (void)connection;
    (void)stats;
  }
 
  virtual void onLocalVideoStats(const RtcConnection& connection, VIDEO_SOURCE_TYPE sourceType, const LocalVideoStats& stats) {
    (void)connection;
    (void)stats;
  }
 
  virtual void onRemoteVideoStats(const RtcConnection& connection, const RemoteVideoStats& stats) {
    (void)connection;
    (void)stats;
  }
 
  virtual void onConnectionLost(const RtcConnection& connection) {
    (void)connection;
  }
 
  virtual void onConnectionInterrupted(const RtcConnection& connection) __deprecated {
    (void)connection;
  }
 
  virtual void onConnectionBanned(const RtcConnection& connection) {
    (void)connection;
  }
 
  virtual void onStreamMessage(const RtcConnection& connection, uid_t remoteUid, int streamId, const char* data, size_t length, uint64_t sentTs) {
    (void)connection;
    (void)remoteUid;
    (void)streamId;
    (void)data;
    (void)length;
    (void)sentTs;
  }
 
  virtual void onStreamMessageError(const RtcConnection& connection, uid_t remoteUid, int streamId, int code, int missed, int cached) {
    (void)connection;
    (void)remoteUid;
    (void)streamId;
    (void)code;
    (void)missed;
    (void)cached;
  }
 
  virtual void onRdtMessage(const RtcConnection& connection, uid_t userId, RdtStreamType type, const char *data, size_t length) {
    (void)connection;
    (void)userId;
    (void)type;
    (void)data;
    (void)length;
  }
 
  virtual void onRdtStateChanged(const RtcConnection& connection, uid_t userId, RdtState state) {
    (void)connection;
    (void)userId;
    (void)state;
  }
 
  virtual void onMediaControlMessage(const RtcConnection& connection, uid_t userId, const char* data, size_t length) {
    (void)connection;
    (void)userId;
    (void)data;
    (void)length;
  }
 
  virtual void onRequestToken(const RtcConnection& connection) {
    (void)connection;
  }
 
  virtual void onLicenseValidationFailure(const RtcConnection& connection, LICENSE_ERROR_TYPE reason) {
    (void)connection;
    (void)reason;
  }
 
  virtual void onTokenPrivilegeWillExpire(const RtcConnection& connection, const char* token) {
    (void)connection;
    (void)token;
  }
 
  virtual void onFirstLocalAudioFramePublished(const RtcConnection& connection, int elapsed) {
    (void)connection;
    (void)elapsed;
  }
 
  virtual void onFirstRemoteAudioFrame(const RtcConnection& connection, uid_t userId, int elapsed) __deprecated {
    (void)connection;
    (void)userId;
    (void)elapsed;
  }
 
  virtual void onFirstRemoteAudioDecoded(const RtcConnection& connection, uid_t uid, int elapsed) __deprecated {
    (void)connection;
    (void)uid;
    (void)elapsed;
  }
 
  virtual void onLocalAudioStateChanged(const RtcConnection& connection, LOCAL_AUDIO_STREAM_STATE state, LOCAL_AUDIO_STREAM_REASON reason) {
    (void)connection;
    (void)state;
    (void)reason;
  }
 
  virtual void onRemoteAudioStateChanged(const RtcConnection& connection, uid_t remoteUid, REMOTE_AUDIO_STATE state, REMOTE_AUDIO_STATE_REASON reason, int elapsed) {
    (void)connection;
    (void)remoteUid;
    (void)state;
    (void)reason;
    (void)elapsed;
  }
 
  virtual void onActiveSpeaker(const RtcConnection& connection, uid_t uid) {
    (void)connection;
    (void)uid;
  }
 
  virtual void onClientRoleChanged(const RtcConnection& connection, CLIENT_ROLE_TYPE oldRole, CLIENT_ROLE_TYPE newRole, const ClientRoleOptions& newRoleOptions) {
    (void)connection;
    (void)oldRole;
    (void)newRole;
    (void)newRoleOptions;
  }
 
  virtual void onClientRoleChangeFailed(const RtcConnection& connection, CLIENT_ROLE_CHANGE_FAILED_REASON reason, CLIENT_ROLE_TYPE currentRole) {
    (void)connection;
    (void)reason;
    (void)currentRole;
  }
 
  virtual void onRemoteAudioTransportStats(const RtcConnection& connection, uid_t remoteUid, unsigned short delay, unsigned short lost,
                                           unsigned short rxKBitRate) __deprecated {
    (void)connection;
    (void)remoteUid;
    (void)delay;
    (void)lost;
    (void)rxKBitRate;
  }
 
  virtual void onRemoteVideoTransportStats(const RtcConnection& connection, uid_t remoteUid, unsigned short delay, unsigned short lost,
                                           unsigned short rxKBitRate) __deprecated {
    (void)connection;
    (void)remoteUid;
    (void)delay;
    (void)lost;
    (void)rxKBitRate;
  }
 
  virtual void onConnectionStateChanged(const RtcConnection& connection,
                                        CONNECTION_STATE_TYPE state,
                                        CONNECTION_CHANGED_REASON_TYPE reason) {
    (void)connection;
    (void)state;
    (void)reason;
  }
 
  virtual void onNetworkTypeChanged(const RtcConnection& connection, NETWORK_TYPE type) {
    (void)connection;
    (void)type;
  }
 
  virtual void onEncryptionError(const RtcConnection& connection, ENCRYPTION_ERROR_TYPE errorType) {
    (void)connection;
    (void)errorType;
  }
  virtual void onUploadLogResult(const RtcConnection& connection, const char* requestId, bool success, UPLOAD_ERROR_REASON reason) {
    (void)connection;
    (void)requestId;
    (void)success;
    (void)reason;
  }
 
  virtual void onUserAccountUpdated(const RtcConnection& connection, uid_t remoteUid, const char* remoteUserAccount){
    (void)connection;
    (void)remoteUid;
    (void)remoteUserAccount;
  }
 
  virtual void onSnapshotTaken(const RtcConnection& connection, uid_t uid, const char* filePath, int width, int height, int errCode) {
    (void)uid;
    (void)filePath;
    (void)width;
    (void)height;
    (void)errCode;
  }
 
  virtual void onVideoRenderingTracingResult(const RtcConnection& connection, uid_t uid, MEDIA_TRACE_EVENT currentEvent, VideoRenderingTracingInfo tracingInfo) {
    (void)uid;
    (void)currentEvent;
    (void)tracingInfo;
  }
 
  virtual void onSetRtmFlagResult(const RtcConnection& connection, int code) {
    (void)connection;
    (void)code;
  }
  virtual void onTranscodedStreamLayoutInfo(const RtcConnection& connection, uid_t uid, int width, int height, int layoutCount,const VideoLayout* layoutlist) {
    (void)uid;
    (void)width;
    (void)height;
    (void)layoutCount;
    (void)layoutlist;
  }
 
  virtual void onAudioMetadataReceived(const RtcConnection& connection, uid_t uid, const char* metadata, size_t length) {
    (void)metadata;
    (void)length;
  }
 
  virtual void onMultipathStats(const RtcConnection& connection, const MultipathStats& stats) {
    (void)stats;
    (void)connection;
  }
 
  virtual void onRenewTokenResult(const RtcConnection& connection, const char* token, RENEW_TOKEN_ERROR_CODE code) {
    (void)token;
    (void)code;
  }
};
 
class IRtcEngineEx : public IRtcEngine {
public:
    virtual int joinChannelEx(const char* token, const RtcConnection& connection,
                              const ChannelMediaOptions& options,
                              IRtcEngineEventHandler* eventHandler) = 0;
 
    virtual int leaveChannelEx(const RtcConnection& connection) = 0;
 
    virtual int leaveChannelEx(const RtcConnection& connection, const LeaveChannelOptions& options) = 0;
 
    virtual int leaveChannelWithUserAccountEx(const char* channelId, const char* userAccount) = 0;
 
    virtual int leaveChannelWithUserAccountEx(const char* channelId, const char* userAccount, const LeaveChannelOptions& options) = 0;
 
    virtual int updateChannelMediaOptionsEx(const ChannelMediaOptions& options, const RtcConnection& connection) = 0;
    virtual int setVideoEncoderConfigurationEx(const VideoEncoderConfiguration& config, const RtcConnection& connection) = 0;
    virtual int setupRemoteVideoEx(const VideoCanvas& canvas, const RtcConnection& connection) = 0;
    virtual int muteRemoteAudioStreamEx(uid_t uid, bool mute, const RtcConnection& connection) = 0;
    virtual int muteRemoteVideoStreamEx(uid_t uid, bool mute, const RtcConnection& connection) = 0;
    virtual int setRemoteVideoStreamTypeEx(uid_t uid, VIDEO_STREAM_TYPE streamType, const RtcConnection& connection) = 0;
    virtual int muteLocalAudioStreamEx(bool mute, const RtcConnection& connection) = 0;
 
    virtual int muteLocalVideoStreamEx(bool mute, const RtcConnection& connection) = 0;
 
    virtual int muteAllRemoteAudioStreamsEx(bool mute, const RtcConnection& connection) = 0;
 
    virtual int muteAllRemoteVideoStreamsEx(bool mute, const RtcConnection& connection) = 0;
 
 
    virtual int setSubscribeAudioBlocklistEx(uid_t* uidList, int uidNumber, const RtcConnection& connection) = 0;
 
    virtual int setSubscribeAudioAllowlistEx(uid_t* uidList, int uidNumber, const RtcConnection& connection) = 0;
 
    virtual int setSubscribeVideoBlocklistEx(uid_t* uidList, int uidNumber, const RtcConnection& connection) = 0;
 
    virtual int setSubscribeVideoAllowlistEx(uid_t* uidList, int uidNumber, const RtcConnection& connection) = 0;
    virtual int setRemoteVideoSubscriptionOptionsEx(uid_t uid, const VideoSubscriptionOptions& options, const RtcConnection& connection) = 0;
    virtual int setRemoteVoicePositionEx(uid_t uid, double pan, double gain, const RtcConnection& connection) = 0;
    virtual int setRemoteUserSpatialAudioParamsEx(uid_t uid, const agora::SpatialAudioParams& params, const RtcConnection& connection) = 0;
    virtual int setRemoteRenderModeEx(uid_t uid, media::base::RENDER_MODE_TYPE renderMode,
                                      VIDEO_MIRROR_MODE_TYPE mirrorMode, const RtcConnection& connection) = 0;
 
    virtual int setRemoteRenderRotationEx(uid_t uid, VIDEO_ORIENTATION rotation, const RtcConnection& connection) = 0;
  
    virtual int enableLoopbackRecordingEx(const RtcConnection& connection, bool enabled, const char* deviceName = NULL) = 0;
 
    virtual int adjustRecordingSignalVolumeEx(int volume, const RtcConnection& connection) = 0;
 
    virtual int muteRecordingSignalEx(bool mute, const RtcConnection& connection) = 0;
 
    virtual int adjustUserPlaybackSignalVolumeEx(uid_t uid, int volume, const RtcConnection& connection) = 0;
 
    virtual CONNECTION_STATE_TYPE getConnectionStateEx(const RtcConnection& connection) = 0;
    virtual int enableEncryptionEx(const RtcConnection& connection, bool enabled, const EncryptionConfig& config) = 0;
    virtual int createDataStreamEx(int* streamId, bool reliable, bool ordered, const RtcConnection& connection) = 0;
    virtual int createDataStreamEx(int* streamId, const DataStreamConfig& config, const RtcConnection& connection) = 0;
    virtual int sendStreamMessageEx(int streamId, const char* data, size_t length, const RtcConnection& connection) = 0;
 
    virtual int sendRdtMessageEx(uid_t uid, RdtStreamType type, const char *data, size_t length, const RtcConnection& connection) = 0;
 
    virtual int sendMediaControlMessageEx(uid_t uid, const char *data, size_t length, const RtcConnection& connection) = 0;
 
    virtual int addVideoWatermarkEx(const char* watermarkUrl, const WatermarkOptions& options, const RtcConnection& connection) = 0;
 
    virtual int addVideoWatermarkEx(const WatermarkConfig& config, const RtcConnection& connection) = 0;
 
    virtual int removeVideoWatermarkEx(const char* id, const RtcConnection& connection) = 0;
 
    virtual int clearVideoWatermarkEx(const RtcConnection& connection) = 0;
    virtual int sendCustomReportMessageEx(const char* id, const char* category, const char* event, const char* label,
                                          int value, const RtcConnection& connection) = 0;
 
    virtual int enableAudioVolumeIndicationEx(int interval, int smooth, bool reportVad, const RtcConnection& connection) = 0;
 
    virtual int startRtmpStreamWithoutTranscodingEx(const char* url, const RtcConnection& connection) = 0;
 
    virtual int startRtmpStreamWithTranscodingEx(const char* url, const LiveTranscoding& transcoding, const RtcConnection& connection) = 0;
 
    virtual int updateRtmpTranscodingEx(const LiveTranscoding& transcoding, const RtcConnection& connection) = 0;
 
    virtual int stopRtmpStreamEx(const char* url, const RtcConnection& connection) = 0;
 
    virtual int startOrUpdateChannelMediaRelayEx(const ChannelMediaRelayConfiguration& configuration, const RtcConnection& connection) = 0;
 
    virtual int stopChannelMediaRelayEx(const RtcConnection& connection) = 0;
 
    virtual int pauseAllChannelMediaRelayEx(const RtcConnection& connection) = 0;
 
    virtual int resumeAllChannelMediaRelayEx(const RtcConnection& connection) = 0;
 
    virtual int getUserInfoByUserAccountEx(const char* userAccount, rtc::UserInfo* userInfo, const RtcConnection& connection) = 0;
 
    virtual int getUserInfoByUidEx(uid_t uid, rtc::UserInfo* userInfo, const RtcConnection& connection) = 0;
 
    virtual int enableDualStreamModeEx(bool enabled, const SimulcastStreamConfig& streamConfig,
                                       const RtcConnection& connection) = 0;
    virtual int setDualStreamModeEx(SIMULCAST_STREAM_MODE mode,
                                   const SimulcastStreamConfig& streamConfig,
                                   const RtcConnection& connection) = 0;
 
    virtual int setSimulcastConfigEx(const SimulcastConfig& simulcastConfig,
                                     const RtcConnection& connection) = 0;
 
    virtual int setHighPriorityUserListEx(uid_t* uidList, int uidNum,
                                          STREAM_FALLBACK_OPTIONS option,
                                          const RtcConnection& connection) = 0;
 
    virtual int takeSnapshotEx(const RtcConnection& connection, uid_t uid, const char* filePath)  = 0;
 
    virtual int takeSnapshotEx(const RtcConnection& connection, uid_t uid, const media::SnapshotConfig& config)  = 0;
 
    virtual int enableContentInspectEx(bool enabled, const media::ContentInspectConfig &config, const RtcConnection& connection) = 0;
 
    virtual int startMediaRenderingTracingEx(const RtcConnection& connection) = 0;
 
    virtual int setParametersEx(const RtcConnection& connection, const char* parameters) = 0;
 
    virtual int getCallIdEx(agora::util::AString& callId, const RtcConnection& connection) = 0;
 
    virtual int sendAudioMetadataEx(const RtcConnection& connection, const char* metadata, size_t length) = 0;
 
    virtual int preloadEffectEx(const RtcConnection& connection, int soundId, const char* filePath, int startPos = 0) = 0;
 
    virtual int playEffectEx(const RtcConnection& connection, int soundId, const char* filePath, int loopCount, double pitch, double pan, int gain, bool publish = false, int startPos = 0) = 0;
};
 
}  // namespace rtc
}  // namespace agora