self.rtcRoomApi = [[BaiduRtcRoomApi alloc] initSDKWithAppID:self.appId
	                                                   tokenStr:self.tokenStr
	                                                   delegate:self];

	/**
     视频自定义采集
	 FooCameraCapturer 是您自己的视频源实现类，需要实现 id<BaiduVideoCapturer> 协议。
	 如果您的视频源是系统相机源，并且想要通过 BRTC 接口实现对相机的部分控制，则需要同时实现 id<BaiduCameraController> 协议
	 */
	FooCameraCapturer *capturer = [FooCameraCapturer new];
	[self.rtcRoomApi setVideoCapturer:capturer];

    /**
      音频自定义采集
      FooAudioExternalDevice 是您自己的音频采集源实现类，需要实现 id<BaiduRtcRoomApiAudioExternalDeviceDelegate> 协议
      */
    FooAudioExternalDevice *audioDevice = [[FooAudioExternalDevice alloc] init];
    rps.isEnableExternalAudioDevice = YES;
    [self.rtcRoom setParamSettings:rps paramType:RTC_AUDIO_PARAM_SETTINGS_DEVICE_MODE];
    [self.rtcRoom setAudioExternalDeviceDelegate:audioDevice];

RtcParameterSettings *rps = [[RtcParameterSettings alloc] init];
//是否开启多人模式（YES：多人模式；NO：两人模式）
rps.isMultiPlayerModel = YES;
[self.rtcRoomApi setParamSettings:rps paramType:RTC_VIDEO_PARAM_SETTINGS_SESSION_MODE];

//以下参数按需设置 
// 视频采集参数
RtcVideoBaseParams *captureParams = [[RtcVideoBaseParams alloc] init];
captureParams.videoFps = 15;
captureParams.videoWidth = 720;
captureParams.videoHeight = 1280;
rps.videoCaptureParams = captureParams;
[self.rtcRoomApi setParamSettings:rps paramType:RTC_VIDEO_PARAM_SETTINGS_CAPTURE_PARAMS];
    
// 视频采集参数 - 前置摄像头
BOOL frontCamera = YES;
[self.rtcRoomApi setCameraFace:frontCamera];
    
// 视频编码参数
RtcVideoEncodeParams *videoParams = [[RtcVideoEncodeParams alloc] init];
videoParams.videoFps = 15;
videoParams.videoWidth = 720;
videoParams.videoHeight = 1280;
videoParams.videoBitrate = 1500;
    
// 视频编码参数设置
rps.videoEncodeParams = @{
    RTC_MEDIA_TARGET_VIDEO_DEFAULT: videoParams,
};
[self.rtcRoomApi setParamSettings:rps paramType:RTC_VIDEO_PARAM_SETTINGS_TARGET_ENCODE_DICT];

//是否自动发布流
rps.isAutoPublish = YES;
[self.rtcRoomApi setParamSettings:rps paramType:RTC_PARAM_SETTINGS_AUTO_PUBLISH];

//是否自动订阅流
rps.isAutoSubscribe = YES;
[self.rtcRoomApi setParamSettings:rps paramType:RTC_PARAM_SETTINGS_AUTO_SUBSCRIBE];

@interface ViewController () <
    BaiduRtcRoomDelegate, RTCRemoteVideoViewDelegate
>
@property (nonatomic, strong) BaiduRtcRoomApi *rtcRoomApi;
//声明本地与远端用户显示的视图
@property (nonatomic, strong) RTCLocalVideoView *localView;
@property (nonatomic, strong) RTCRemoteVideoView *remoteView;
@end

- (void)viewDidLoad {
    //初始化本地用户显示视图
    self.localView = [[RTCLocalVideoView alloc] initWithDelegate:self];
    self.localView.videoView.frame = CGRectMake(0, 0, 100, 200);
    [self.view addSubview:self.localView.videoView];
    //初始化远端用户显示视图
    self.remoteView = [[RTCRemoteVideoView alloc] initWithDelegate:self];
    self.remoteView.videoView.frame = CGRectMake(0, 120, 100, 200);
    [self.view addSubview:self.remoteView.videoView];
    
    //设置本地视频显示view
    [self.rtcRoomApi setLocalDisplay:self.localView];
    
    //设置远端用户视频显示view
    //当多人模式rps.isMultiPlayerModel = NO时，通过此方法设置远端画面
    [self.rtcRoomApi setRemoteDisplay:self.remoteView]; 
    
    /**
    当多人模式rps.isMultiPlayerModel = YES时，在BaiduRtcRoomDelegate代理回调里通过以下方法设置远端画面。
    可以在提供的demo里面搜索此方法
    [self.rtcRoomApi setRemoteDisplay:videoInfo.videoView userId:rtcStreamInfo.userId];
    */

}

uint32_t tempUserId = [self getRandomNumber:1000 to:9000]; //随机生成数或者输入读取
[self.rtcRoomApi loginRtcRoomWithRoomName:self.roomName
                                   userID:tempUserId
                              displayName:@"James"];

// 不自动发布流时，可使用该方法推流
// 注意需要等待加入房间成功，即代理方法onRoomEventUpdate回调RTC_ROOM_EVENTS_ROOM_JOINED事件之后调用
[self.rtcRoomApi publishStreaming];    

// 不自动订阅流时，可使用该方法拉流
// 注意需要等待加入房间成功，即代理方法onRoomEventUpdate回调RTC_ROOM_EVENTS_ROOM_JOINED事件之后调用
[self.rtcRoomApi subsribeStreaming:@[@(123)]];  

[self.rtcRoomApi logoutRtcRoom];