Relay to CDN

// Publish the local user's stream to a live streaming CDN.
TRTCPublishTarget* target = [[TRTCPublishTarget alloc] init];
target.mode = TRTCPublishBigStreamToCdn;
TRTCPublishCdnUrl* cdnUrl = [[TRTCPublishCdnUrl alloc] init];
cdnUrl.rtmpUrl = @"rtmp://tencent/live/bestnews";
cdnUrl.isInternalLine = YES;
NSMutableArray* cdnUrlList = [NSMutableArray new];
[cdnUrlList addObject:cdnUrl];
target.cdnUrlList = cdnUrlList;
[_trtcCloud startPublishMediaStream:target encoderParam:nil mixingConfig:nil];

// Publish the local user's stream to a live streaming CDN.
TRTCPublishTarget target;
target.mode = TRTCPublishMode::TRTCPublishBigStreamToCdn;
TRTCPublishCdnUrl* cdn_url_list = new TRTCPublishCdnUrl[1];
cdn_url_list[0].rtmpUrl = "rtmp://tencent/live/bestnews";
cdn_url_list[0].isInternalLine = true;
target.cdnUrlList = cdn_url_list;
target.cdnUrlListSize = 1;
trtc->startPublishMediaStream(&target, nullptr, nullptr);
delete[] cdn_url_list;

const options = {
  target: {
    publishMode: PublishMode.PublishMainStreamToCDN
  }
}
try {
  await trtc.startPlugin('CDNStreaming', options);
} catch (error) {
  console.error('CDNStreaming start failed', error);
}

TRTCPublishTarget target = TRTCPublishTarget();
target.mode = TRTCPublishMode.TRTCPublishBigStreamToCdn;
TRTCPublishCdnUrl cdnUrlEntity = new TRTCPublishCdnUrl();
cdnUrlEntity.rtmpUrl = "rtmp://tencent/live/bestnews";
cdnUrlEntity.isInternalLine = true;
target.cdnUrlList.add(cdnUrlEntity);

trtcCloud.startPublishMediaStream(target: target);

// Specify the publishing mode as TRTCPublishMixStreamToCdn.
TRTCPublishTarget* target = [[TRTCPublishTarget alloc] init];
target.mode = TRTCPublishMixStreamToCdn;
// Specify the CDN address for publishing.
TRTCPublishCdnUrl* cdnUrl = [[TRTCPublishCdnUrl alloc] init];
cdnUrl.rtmpUrl = @"rtmp://tencent/live/bestnews";
cdnUrl.isInternalLine = YES;
NSMutableArray* cdnUrlList = [NSMutableArray new];
[cdnUrlList addObject:cdnUrl];
target.cdnUrlList = cdnUrlList;
// Set the secondary encoding parameters for the mixed audio and video streams.
TRTCStreamEncoderParam* encoderParam = [[TRTCStreamEncoderParam alloc] init];
encoderParam.videoEncodedWidth = 1280;
encoderParam.videoEncodedHeight = 720;
encoderParam.videoEncodedFPS = 15;
encoderParam.videoEncodedGOP = 3;
encoderParam.videoEncodedKbps = 1000;
encoderParam.audioEncodedSampleRate = 48000;
encoderParam.audioEncodedChannelNum = 1;
encoderParam.audioEncodedKbps = 50;
encoderParam.audioEncodedCodecType = 0;
// Set the layout parameters for the screen.
TRTCStreamMixingConfig* config = [[TRTCStreamMixingConfig alloc] init];
NSMutableArray* videoLayoutList = [NSMutableArray new];
TRTCVideoLayout* layout1 = [[TRTCVideoLayout alloc] init];
layout1.zOrder = 0;
layout1.rect = CGRectMake(0, 0, 720, 1280);
layout1.fixedVideoStreamType = TRTCVideoStreamTypeSub;
layout1.fixedVideoUser.intRoomId = 1234;
layout1.fixedVideoUser.userId = @"mike";
TRTCVideoLayout* layout2 = [[TRTCVideoLayout alloc] init];
layout2.zOrder = 0;
layout2.rect = CGRectMake(1300, 0, 300, 200);
layout2.fixedVideoStreamType = TRTCVideoStreamTypeBig;
layout2.fixedVideoUser.intRoomId = 1234;
layout2.fixedVideoUser.userId = @"mike";
TRTCVideoLayout* layout3 = [[TRTCVideoLayout alloc] init];
layout3.zOrder = 0;
layout3.rect = CGRectMake(1300, 220, 300, 200);
layout3.fixedVideoStreamType = TRTCVideoStreamTypeSub;
layout3.fixedVideoUser = nil;
[videoLayoutList addObject:layout1];
[videoLayoutList addObject:layout2];
[videoLayoutList addObject:layout3];
config.videoLayoutList = videoLayoutList;
config.audioMixUserList = nil;
// Initiate stream mixing.
[_trtcCloud startPublishMediaStream:target encoderParam:encoderParam mixingConfig:config];

// Specify the publishing mode as TRTCPublishMixStreamToCdn.
TRTCPublishTarget target;
target.mode = TRTCPublishMode::TRTCPublishMixStreamToCdn;
// Specify the CDN address for publishing.
TRTCPublishCdnUrl* cdn_url = new TRTCPublishCdnUrl[1];
cdn_url[0].rtmpUrl = "rtmp://tencent/live/bestnews";
cdn_url[0].isInternalLine = true;
target.cdnUrlList = cdn_url;
target.cdnUrlListSize = 1;
// Set the secondary encoding parameters for the mixed audio and video streams.
TRTCStreamEncoderParam encoder_param;
encoder_param.videoEncodedWidth = 1280;
encoder_param.videoEncodedHeight = 720;
encoder_param.videoEncodedFPS = 15;
encoder_param.videoEncodedGOP = 3;
encoder_param.videoEncodedKbps = 1000;
encoder_param.audioEncodedSampleRate = 48000;
encoder_param.audioEncodedChannelNum = 1;
encoder_param.audioEncodedKbps = 50;
encoder_param.audioEncodedCodecType = 0;
// Set the layout parameters for the screen.
TRTCStreamMixingConfig config;
TRTCVideoLayout* video_layout_list = new TRTCVideoLayout[3];
TRTCUser* fixedVideoUser0 = new TRTCUser();
fixedVideoUser0->intRoomId = 1234;
fixedVideoUser0->userId = "mike"; 
video_layout_list[0].zOrder = 0;
video_layout_list[0].rect.left = 0;
video_layout_list[0].rect.top = 0;
video_layout_list[0].rect.right = 720;
video_layout_list[0].rect.bottom = 1280;
video_layout_list[0].fixedVideoStreamType =
     TRTCVideoStreamType::TRTCVideoStreamTypeSub;
video_layout_list[0].fixedVideoUser = fixedVideoUser0;
TRTCUser* fixedVideoUser1 = new TRTCUser();
fixedVideoUser1->intRoomId = 1234;
fixedVideoUser1->userId = "mike";
video_layout_list[1].zOrder = 0;
video_layout_list[1].rect.left = 1300;
video_layout_list[1].rect.top = 0;
video_layout_list[1].rect.right = 300;
video_layout_list[1].rect.bottom = 200;
video_layout_list[1].fixedVideoStreamType =
     TRTCVideoStreamType::TRTCVideoStreamTypeBig;
video_layout_list[1].fixedVideoUser = fixedVideoUser1;
video_layout_list[2].zOrder = 0;
video_layout_list[2].rect.left = 1300;
video_layout_list[2].rect.top = 220;
video_layout_list[2].rect.right = 300;
video_layout_list[2].rect.bottom = 200;
video_layout_list[2].fixedVideoStreamType =
     TRTCVideoStreamType::TRTCVideoStreamTypeSub;
video_layout_list[2].fixedVideoUser = nullptr;
config.videoLayoutList = video_layout_list;
config.videoLayoutListSize = 3;
config.audioMixUserList = nullptr;
// Initiate stream mixing.
trtc->startPublishMediaStream(&target, &encoder_param, &config);
delete fixedVideoUser0;
delete fixedVideoUser1;
delete[] video_layout_list;

TRTCPublishTarget target = TRTCPublishTarget();
target.mode = TRTCPublishMode.TRTCPublishMixStreamToCdn;
TRTCPublishCdnUrl cdnUrlEntity = new TRTCPublishCdnUrl();
cdnUrlEntity.rtmpUrl = "rtmp://tencent/live/bestnews";
cdnUrlEntity.isInternalLine = true;
target.cdnUrlList.add(cdnUrlEntity);

TRTCStreamMixingConfig config = TRTCStreamMixingConfig();
TRTCUser selfUser = TRTCUser();
selfUser.userId = localUserId;
selfUser.intRoomId = localRoomId;

TRTCVideoLayout selfVideoLayout = TRTCVideoLayout();
selfVideoLayout.fixedVideoStreamType = TRTCVideoStreamType.TRTCVideoStreamTypeBig;
selfVideoLayout.rect = Rect(originX: 0, originY: 0, sizeWidth: 1080, sizeHeight: 1920);
selfVideoLayout.zOrder = 0;
selfVideoLayout.fixedVideoUser = selfUser;
selfVideoLayout.fillMode = TRTCVideoFillMode.TRTCVideoFillMode_Fit;
config.videoLayoutList.add(selfVideoLayout);TRTCUser remoteUser = TRTCUser();

remoteUser.userId = remoteUserId;
remoteUser.intRoomId = remoteRoomId;
TRTCVideoLayout remoteVideoLayout = TRTCVideoLayout();
remoteVideoLayout.fixedVideoStreamType = TRTCVideoStreamType.TRTCVideoStreamTypeBig;
remoteVideoLayout.rect = Rect(originX: 100, originY: 50, sizeWidth: 216, sizeHeight: 384);
remoteVideoLayout.zOrder = 1;
remoteVideoLayout.fixedVideoUser = remoteUser;
remoteVideoLayout.fillMode = TRTCVideoFillMode.TRTCVideoFillMode_Fit;
config.videoLayoutList.add(remoteVideoLayout);

TRTCStreamEncoderParam param = TRTCStreamEncoderParam();
param.videoEncodedWidth = 1080;
param.videoEncodedHeight = 1920;
param.videoEncodedKbps = 5000;
param.videoEncodedFPS = 30;
param.videoEncodedGOP = 3;
param.audioEncodedSampleRate = 48000;
param.audioEncodedChannelNum = 2;
param.audioEncodedKbps = 128;
param.audioEncodedCodecType = 2;

trtcCloud.startPublishMediaStream(target: target, config: config, params: param);