iOS

sudo gem install cocoapods

pod init

platform :ios, '8.0'
    target 'App' do
    
    # RTC Engine Lite Edition
    # The installation package has the minimum incremental size, but only supports 2 features, RTC Engine and live streaming player (TXLivePlayer).
    pod 'TXLiteAVSDK_TRTC', :podspec => 'https://liteav.sdk.qcloud.com/pod/liteavsdkspec/TXLiteAVSDK_TRTC.podspec'
    
    # Pro Edition
    # Includes features such as RTC Engine, live streaming player (TXLivePlayer), RTMP streaming (TXLivePusher), VOD player (TXVodPlayer), and short video recording and editing (UGSV).
    # pod 'TXLiteAVSDK_Professional', :podspec => 'https://liteav.sdk.qcloud.com/pod/liteavsdkspec/TXLiteAVSDK_Professional.podspec'
    
    # Beauty AR SDK, for example: S1-07 package as follows
    pod 'TencentEffect_S1-07'

end

pod install

pod update

// Obtain the video rendering control for displaying the anchor's local video preview.
@property (nonatomic, strong) UIView *anchorPreviewView;
@property (nonatomic, strong) TRTCCloud *trtcCloud;

- (void)setupTRTC {
    self.trtcCloud = [TRTCCloud sharedInstance];
    self.trtcCloud.delegate = self;
    // Set video encoding parameters to determine the picture quality seen by remote users.
    TRTCVideoEncParam *encParam = [[TRTCVideoEncParam alloc] init];
    encParam.videoResolution = TRTCVideoResolution_960_540;
    encParam.videoFps = 15;
    encParam.videoBitrate = 1300;
    encParam.resMode = TRTCVideoResolutionModePortrait;
    [self.trtcCloud setVideoEncoderParam:encParam];
    
    // isFrontCamera can specify the use of front/rear camera for video capture
    [self.trtcCloud startLocalPreview:self.isFrontCamera view:self.anchorPreviewView];

    // Here you can specify the audio quality, from low to high as SPEECH/DEFAULT/MUSIC.
    [self.trtcCloud startLocalAudio:TRTCAudioQualityDefault];
}

- (void)setupRenderParams {
    TRTCRenderParams *params = [[TRTCRenderParams alloc] init];
    // Video mirror mode
    params.mirrorType = TRTCVideoMirrorTypeAuto;
    // Video fill mode
    params.fillMode = TRTCVideoFillMode_Fill;
    // Video rotation angle
    params.rotation = TRTCVideoRotation_0;
    // Set the rendering parameters for the local video.
    [self.trtcCloud setLocalRenderParams:params];

    // Set the video mirror mode for the encoder output.
    [self.trtcCloud setVideoEncoderMirror:YES];
    // Set the rotation of the video encoder output.
    [self.trtcCloud setVideoEncoderRotation:TRTCVideoRotation_0];
}

- (void)enterRoomByAnchorWithUserId:(NSString *)userId roomId:(NSString *)roomId {
    TRTCParams *params = [[TRTCParams alloc] init];
    // Take the room ID string as an example.
    params.strRoomId = roomId;
    params.userId = userId;
    // UserSig obtained from the business backend.
    params.userSig = @"userSig";
    // Replace with your SDKAppID.
    params.sdkAppId = 0;
    // Specify the anchor role.
    params.role = TRTCRoleAnchor;
    // Enter the room in an interactive live streaming scenario.
    [self.trtcCloud enterRoom:params appScene:TRTCAppSceneLIVE];
}

// Event callback for the result of entering the room.
- (void)onEnterRoom:(NSInteger)result {
    if (result > 0) {
        // result indicates the time taken (in milliseconds) to join the room.
        NSLog(@"Enter room succeed!");
    } else {
        // result indicates the error code when you fail to enter the room.
        NSLog(@"Enter room failed!");
    }
}

- (void)enterRoomByAudienceWithUserId:(NSString *)userId roomId:(NSString *)roomId {
    TRTCParams *params = [[TRTCParams alloc] init];
    // Take the room ID string as an example.
    params.strRoomId = roomId;
    params.userId = userId;
    // UserSig obtained from the business backend.
    params.userSig = @"userSig";
    // Replace with your SDKAppID.
    params.sdkAppId = 0;
    // Specify the audience role.
    params.role = TRTCRoleAudience;
    // Enter the room in an interactive live streaming scenario.
    [self.trtcCloud enterRoom:params appScene:TRTCAppSceneLIVE];
}

// Event callback for the result of entering the room.
- (void)onEnterRoom:(NSInteger)result {
    if (result > 0) {
        // result indicates the time taken (in milliseconds) to join the room.
        NSLog(@"Enter room succeed!");
    } else {
        // result indicates the error code when you fail to enter the room.
        NSLog(@"Enter room failed!");
    }
}

- (void)onUserAudioAvailable:(NSString *)userId available:(BOOL)available {
    // The remote user publishes/unpublishes their audio.
    // Under the automatic subscription mode, you do not need to do anything. The SDK will automatically play the remote user's audio.
}

- (void)onUserVideoAvailable:(NSString *)userId available:(BOOL)available {
    // The remote user publishes/unpublishes the primary video.
    if (available) {
        // Subscribe to the remote user's video stream and bind the video rendering control.
        [self.trtcCloud startRemoteView:userId streamType:TRTCVideoStreamTypeBig view:self.remoteView];
    } else {
        // Unsubscribe to the remote user's video stream and release the rendering control.
        [self.trtcCloud stopRemoteView:userId streamType:TRTCVideoStreamTypeBig];
    }
}

- (void)setupRemoteRenderParams {
    TRTCRenderParams *params = [[TRTCRenderParams alloc] init];
    // Video mirror mode
    params.mirrorType = TRTCVideoMirrorTypeAuto;
    // Video fill mode
    params.fillMode = TRTCVideoFillMode_Fill;
    // Video rotation angle
    params.rotation = TRTCVideoRotation_0;
    // Set the rendering mode for the remote video.
    [self.trtcCloud setRemoteRenderParams:@"userId" streamType:TRTCVideoStreamTypeBig params:params];
}

- (void)switchToAnchor {
    // Switched to the anchor role.
    [self.trtcCloud switchRole:TRTCRoleAnchor];
}

// Event callback for switching the role.
- (void)onSwitchRole:(TXLiteAVError)errCode errMsg:(NSString *)errMsg {
    if (errCode == ERR_NULL) {
        // Role switched successfully.
    }
}

- (void)setupTRTC {
    // Set video encoding parameters to determine the picture quality seen by remote users.
    TRTCVideoEncParam *encParam = [[TRTCVideoEncParam alloc] init];
    encParam.videoResolution = TRTCVideoResolution_480_270;
    encParam.videoFps = 15;
    encParam.videoBitrate = 550;
    encParam.resMode = TRTCVideoResolutionModePortrait;
    [self.trtcCloud setVideoEncoderParam:encParam];
 
    // isFrontCamera can specify the use of front/rear camera for video capture
    [self.trtcCloud startLocalPreview:self.isFrontCamera view:self.audiencePreviewView];
    // Here you can specify the audio quality, from low to high as SPEECH/DEFAULT/MUSIC.
    [self.trtcCloud startLocalAudio:TRTCAudioQualityDefault];
}

- (void)switchToAudience {
    // Switched to the audience role.
    [self.trtcCloud switchRole:TRTCRoleAudience];
}

// Event callback for switching the role.
- (void)onSwitchRole:(TXLiteAVError)errCode errMsg:(NSString *)errMsg {
    if (errCode == ERR_NULL) {
        // Stop camera capture and streaming.
        [self.trtcCloud stopLocalPreview];
        // Stop microphone capture and streaming.
        [self.trtcCloud stopLocalAudio];
    }
}

- (void)exitRoom {
    [self.trtcCloud stopLocalAudio];
    [self.trtcCloud stopLocalPreview];
    [self.trtcCloud exitRoom];
}

// Event callback for exiting the room.
- (void)onExitRoom:(NSInteger)reason {
    if (reason == 0) {
        NSLog(@"Proactively call exitRoom to exit the room");
    } else if (reason == 1) {
        NSLog(@"Removed from the current room by the server");
    } else if (reason == 2) {
        NSLog(@"The current room is dissolved");
    }
}

- (void)connectOtherRoom:(NSString *)roomId {
    NSMutableDictionary *jsonDict = [[NSMutableDictionary alloc] init];
    ? ? // The digit room ID is roomId.
    [jsonDict setObject:roomId forKey:@"strRoomId"];
    [jsonDict setObject:self.userId forKey:@"userId"];
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:jsonDict options:NSJSONWritingPrettyPrinted error:nil];
    NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
    [self.trtcCloud connectOtherRoom:jsonString];
}

// Result callback for requesting cross-room mic-connection.
- (void)onConnectOtherRoom:(NSString *)userId errCode:(TXLiteAVError)errCode errMsg:(NSString *)errMsg {
    // The user ID of the anchor in the other room you want to initiate the cross-room link-up.
    // Error code. ERR_NULL indicates the request is successful.
    // Error message.
}

- (void)onUserAudioAvailable:(NSString *)userId available:(BOOL)available {
    // The remote user publishes/unpublishes their audio.
    // Under the automatic subscription mode, you do not need to do anything. The SDK will automatically play the remote user's audio.
}

- (void)onUserVideoAvailable:(NSString *)userId available:(BOOL)available {
    // The remote user publishes/unpublishes the primary video.
    if (available) {
        // Subscribe to the remote user's video stream and bind the video rendering control.
        [self.trtcCloud startRemoteView:userId streamType:TRTCVideoStreamTypeBig view:self.remoteView];
    } else {
        // Unsubscribe to the remote user's video stream and release the rendering control.
        [self.trtcCloud stopRemoteView:userId streamType:TRTCVideoStreamTypeBig];
    }
}

// Exit the cross-room mic-connection.
[self.trtcCloud disconnectOtherRoom];

// Result callback for exiting cross-room mic-connection.
- (void)onDisconnectOtherRoom:(TXLiteAVError)errCode errMsg:(NSString *)errMsg {
}

NSString *beautyConfigPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
beautyConfigPath = [beautyConfigPath stringByAppendingPathComponent:@"beauty_config.json"];
NSFileManager *localFileManager=[[NSFileManager alloc] init];
BOOL isDir = YES;
NSDictionary * beautyConfigJson = @{};
if ([localFileManager fileExistsAtPath:beautyConfigPath isDirectory:&isDir] && !isDir) {
    NSString *beautyConfigJsonStr = [NSString stringWithContentsOfFile:beautyConfigPath encoding:NSUTF8StringEncoding error:nil];
    NSError *jsonError;
    NSData *objectData = [beautyConfigJsonStr dataUsingEncoding:NSUTF8StringEncoding];
    beautyConfigJson = [NSJSONSerialization JSONObjectWithData:objectData
                                            options:NSJSONReadingMutableContainers
                                            error:&jsonError];
}
NSDictionary *assetsDict = @{@"core_name":@"LightCore.bundle",
                            @"root_path":[[NSBundle mainBundle] bundlePath],
                            @"tnn_"
                            @"beauty_config":beautyConfigJson
};
// Initialize the SDK: Width and height are the width and height of the texture, respectively.
self.xMagicKit = [[XMagic alloc] initWithRenderSize:CGSizeMake(width,height) assetsDict:assetsDict];

// RTC Engine SDK sets video data callback for third-party beauty effects
[self.trtcCloud setLocalVideoProcessDelegete:self pixelFormat:TRTCVideoPixelFormat_Texture_2D bufferType:TRTCVideoBufferType_Texture];

#pragma mark - TRTCVideoFrameDelegate

// Construct the YTProcessInput and pass it into the SDK for rendering processing.
- (uint32_t)onProcessVideoFrame:(TRTCVideoFrame *_Nonnull)srcFrame dstFrame:(TRTCVideoFrame *_Nonnull)dstFrame {
    if (!self.xMagicKit) {
        [self buildBeautySDK:srcFrame.width and:srcFrame.height texture:srcFrame.textureId];// Initialize the XMagic SDK.
        self.heightF = srcFrame.height;
        self.widthF = srcFrame.width;
    }
    if(self.xMagicKit!=nil && (self.heightF!=srcFrame.height || self.widthF!=srcFrame.width)){
       self.heightF = srcFrame.height;
       self.widthF = srcFrame.width;
       [self.xMagicKit setRenderSize:CGSizeMake(srcFrame.width, srcFrame.height)];
    }
    YTProcessInput *input = [[YTProcessInput alloc] init];
    input.textureData = [[YTTextureData alloc] init];
    input.textureData.texture = srcFrame.textureId;
    input.textureData.textureWidth = srcFrame.width;
    input.textureData.textureHeight = srcFrame.height;
    input.dataType = kYTTextureData;
    YTProcessOutput *output = [self.xMagicKit process:input withOrigin:YtLightImageOriginTopLeft withOrientation:YtLightCameraRotation0];
    dstFrame.textureId = output.textureData.texture;
    return 0;
}

- (void)enableDualStreamMode:(BOOL)enable {
    // Video encoding parameters for the small-screen stream (customizable).
    TRTCVideoEncParam *smallVideoEncParam = [[TRTCVideoEncParam alloc] init];
    smallVideoEncParam.videoResolution = TRTCVideoResolution_480_270;
    smallVideoEncParam.videoFps = 15;
    smallVideoEncParam.videoBitrate = 550;
    smallVideoEncParam.resMode = TRTCVideoResolutionModePortrait;
    [self.trtcCloud enableEncSmallVideoStream:enable withQuality:smallVideoEncParam];
}

// Optional video stream types when subscribing to a remote user's video stream.
[self.trtcCloud startRemoteView:userId streamType:TRTCVideoStreamTypeBig view:view];

// You can switch the size of the specified remote user's screen at any time.
[self.trtcCloud setRemoteVideoStreamType:userId type:TRTCVideoStreamTypeSmall];

// Construct the likes message body.
NSDictionary *msgDict = @{
    @"type": @1,        // Like type
    @"likeCount": @10   // Number of likes
};
NSDictionary *dataDict = @{
    @"cmd": @"like_msg",
    @"msg": msgDict
};
NSError *error;
NSData *data = [NSJSONSerialization dataWithJSONObject:dataDict options:0 error:&error];

// Send custom group messages (it is recommended that like messages should be set to low priority).
[[V2TIMManager sharedInstance] sendGroupCustomMessage:data to:groupID priority:V2TIM_PRIORITY_LOW succ:^{
    // Like messages sent successfully.
    // Local rendering of likes effect.
} fail:^(int code, NSString *desc) {
    // Failed to send like messages.
}];

// Custom group messages received.
[[V2TIMManager sharedInstance] addSimpleMsgListener:self];
- (void)onRecvGroupCustomMessage:(NSString *)msgID groupID:(NSString *)groupID sender:(V2TIMGroupMemberInfo *)info customData:(NSData *)data {
    if (data.length > 0) {
        NSError *error;
        NSDictionary *dataDict = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
        if (!error) {
            NSString *command = dataDict[@"cmd"];
            NSDictionary *msgDict = dataDict[@"msg"];
            if ([command isEqualToString:@"like_msg"]) {
                NSNumber *type = msgDict[@"type"];            // Likes type.
                NSNumber *likeCount = msgDict[@"likeCount"];            // Number of likes.
                // Render likes effect based on likes type and count.
            }
        } else {
            NSLog(@"Parsing error: %@", error.localizedDescription);
        }
    }
}