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ads_manager.js içinde, akış istekleri gönderen, reklam grubu manifestini alan, IMA akış etkinliklerini dinleyen ve emsg etkinliklerini IMA SDK'sına ileten IMA SDK StreamManager için bir sarmalayıcı sınıf tanımlayın.
ads_manager.js içinde, IMA HbbTV örnek uygulaması aşağıdaki yöntemleri ayarlar:
requestStream()
onStreamEvent()
onEmsgEvent()
loadAdPodManifest()
Reklam yöneticisini başlatma
Reklam yöneticisi sınıfını başlatın ve IMA akış etkinlikleri için işleyiciler ayarlayın. Bu çağrıda, VideoPlayer.setEmsgEventHandler() yöntemiyle emsg etkinlik işleyicisini ayarlayın.
/** * Wraps IMA SDK ad stream manager. * @param {!VideoPlayer} videoPlayer Reference an instance of the wrapper from * video_player.js. */varAdManager=function(videoPlayer){this.streamData=null;this.videoPlayer=videoPlayer;// Ad UI is not supported for HBBTV, so no 'adUiElement' is passed in the// StreamManager constructor.this.streamManager=newgoogle.ima.dai.api.StreamManager(this.videoPlayer.videoElement);this.streamManager.addEventListener([google.ima.dai.api.StreamEvent.Type.STREAM_INITIALIZED,google.ima.dai.api.StreamEvent.Type.ERROR,google.ima.dai.api.StreamEvent.Type.CLICK,google.ima.dai.api.StreamEvent.Type.STARTED,google.ima.dai.api.StreamEvent.Type.FIRST_QUARTILE,google.ima.dai.api.StreamEvent.Type.MIDPOINT,google.ima.dai.api.StreamEvent.Type.THIRD_QUARTILE,google.ima.dai.api.StreamEvent.Type.COMPLETE,google.ima.dai.api.StreamEvent.Type.AD_BREAK_STARTED,google.ima.dai.api.StreamEvent.Type.AD_BREAK_ENDED,google.ima.dai.api.StreamEvent.Type.AD_PROGRESS,google.ima.dai.api.StreamEvent.Type.PAUSED,google.ima.dai.api.StreamEvent.Type.RESUMED],this.onStreamEvent.bind(this),false);this.videoPlayer.setEmsgEventHandler(this.onEmsgEvent,this);};
Google Ad Manager ağ kodunuzu ve akışın özel öğe anahtarını kullanarak PodStreamRequest
nesne oluşturma AdManager.requestStream() yöntemini oluşturun. Aşağıdaki akış parametreleriyle IMA örnek DASH kapsül yayınlama akışını kullanarak HbbTV uygulamanızı test edin:
Ağ kodu: '21775744923'
Özel öğe anahtarı: 'hbbtv-dash'
/** * Makes a pod stream request. * @param {string} networkCode The network code. * @param {string} customAssetKey The custom asset key. */AdManager.prototype.requestStream=function(networkCode,customAssetKey){varstreamRequest=newgoogle.ima.dai.api.PodStreamRequest();streamRequest.networkCode=networkCode;streamRequest.customAssetKey=customAssetKey;streamRequest.format='dash';debugView.log('AdsManager: make PodStreamRequest');this.streamManager.requestStream(streamRequest);};
Uygulamanızın IMA akış etkinliklerine (STREAM_INITIALIZED, AD_BREAK_STARTED ve AD_BREAK_ENDED) verdiği yanıtı işlemek için AdManager.onStreamEvent() yöntemini oluşturun.
/** * Handles IMA playback events. * @param {!Event} event The event object. */AdManager.prototype.onStreamEvent=function(event){switch(event.type){// Once the stream response data is received, generate pod manifest url// for the video stream.casegoogle.ima.dai.api.StreamEvent.Type.STREAM_INITIALIZED:debugView.log('IMA SDK: stream initialized');this.streamData=event.getStreamData();break;casegoogle.ima.dai.api.StreamEvent.Type.ERROR:break;// Hide video controls while ad is playing.casegoogle.ima.dai.api.StreamEvent.Type.AD_BREAK_STARTED:debugView.log('IMA SDK: ad break started');this.adPlaying=true;this.adBreakStarted=true;break;// Show video controls when ad ends.casegoogle.ima.dai.api.StreamEvent.Type.AD_BREAK_ENDED:debugView.log('IMA SDK: ad break ended');this.adPlaying=false;this.adBreakStarted=false;break;// Update ad countdown timers.casegoogle.ima.dai.api.StreamEvent.Type.AD_PROGRESS:break;default:debugView.log('IMA SDK: '+event.type);break;}};
emsg etkinlik bilgilerini IMA'ya iletmek için AdManager.onEmsgEvent() yöntemini StreamManager.processMetadata() yöntemini kullanarak oluşturun. Video oynatıcı sınıfı, VideoPlayer.setEmsgEventHandler() yöntemiyle bu yöntemi çağırır.
/** * Callback on Emsg event. * Instructs IMA SDK to fire back VAST events accordingly. * @param {!Event} event The event object. */AdManager.prototype.onEmsgEvent=function(event){vardata=event.event.messageData;varpts=event.event.calculatedPresentationTime;if((datainstanceofUint8Array) && data.byteLength > 0){this.streamManager.processMetadata('ID3',data,pts);}};
Reklam kapsülü manifestini video oynatıcıyla önceden yüklemek için AdManager.loadAdPodManifest() yöntemini oluşturun. Manifest URL'sini Yöntem: DASH pod manifest bölümündeki yapıyı kullanarak oluşturun.
/** * Creates DAI pod url and instructs video player to load manifest. * @param {string} networkCode The network code. * @param {string} customAssetKey The custom asset key. * @param {number} podDuration The duration of the ad pod. */AdManager.prototype.loadAdPodManifest=function(networkCode,customAssetKey,podDuration){if(!this.streamData){debugView.log('IMA SDK: No DAI pod session registered.');return;}varMANIFEST_BASE_URL='https://dai.google.com/linear/pods/v1/dash/network/';// Method: DASH pod manifest reference docs:// https://developers.google.com/ad-manager/dynamic-ad-insertion/api/pod-serving/reference/live#method_dash_pod_manifestvarmanifestUrl=MANIFEST_BASE_URL+networkCode+'/custom_asset/'+customAssetKey+'/stream/'+this.streamData.streamId+'/pod/'+this.getPodId()+'/manifest.mpd?pd='+podDuration;this.videoPlayer.preload(manifestUrl);};
HbbTV örnek uygulaması, rastgele oluşturulan benzersiz bir podId kullanır. Üretim uygulamalarında podId, birden başlayıp her reklam arası için bir artan bir tam sayıdır. podId değerinin, reklam arası izleyen tüm kullanıcılar için aynı olduğunu doğrulayın. podId almak için Erken reklam arası bildirimleri (EABN) API'sini kullanmanızı öneririz. Üretim ortamında, podId ve podDuration öğelerini HbbTV akış etkinliğine AD_BREAK_ANNOUNCE ekleyin.
Ardından, HbbTV yayınıyla etkileşim kuran HbbTV uygulamanız için ana uygulama sınıfını oluşturun.
[null,null,["Son güncelleme tarihi: 2025-08-31 UTC."],[[["\u003cp\u003eThis guide outlines how to integrate the IMA SDK into an HbbTV app to manage ad streams, including setting up an \u003ccode\u003eAdManager\u003c/code\u003e class to handle stream requests and events.\u003c/p\u003e\n"],["\u003cp\u003eFor HbbTV, it is crucial to omit the \u003ccode\u003eadUiElement\u003c/code\u003e in the \u003ccode\u003eStreamManager\u003c/code\u003e constructor to avoid serving incompatible ads, as the IMA SDK does not support ad UI on this platform.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eAdManager\u003c/code\u003e class defines methods to request ad streams, handle IMA events (like \u003ccode\u003eSTREAM_INITIALIZED\u003c/code\u003e, \u003ccode\u003eAD_BREAK_STARTED\u003c/code\u003e, and \u003ccode\u003eAD_BREAK_ENDED\u003c/code\u003e), and process ad stream metadata using emsg events.\u003c/p\u003e\n"],["\u003cp\u003eAd pod manifests are preloaded by constructing a URL using Google Ad Manager parameters (network code, custom asset key) and stream information (\u003ccode\u003estreamId\u003c/code\u003e, \u003ccode\u003epodId\u003c/code\u003e), ensuring the \u003ccode\u003epodId\u003c/code\u003e remains consistent for viewers of the same ad break.\u003c/p\u003e\n"],["\u003cp\u003eBefore proceeding with these steps, complete the setup outlined in the "Set up the player class" guide to lay the foundation for the HbbTV player.\u003c/p\u003e\n"]]],["The `ads_manager.js` file defines an `AdManager` class to manage IMA SDK stream interactions. This includes `requestStream()` for sending stream requests using a network code and custom asset key, `onStreamEvent()` to handle IMA stream events like `STREAM_INITIALIZED`, `AD_BREAK_STARTED`, and `AD_BREAK_ENDED`. `onEmsgEvent()` passes emsg event data to the IMA SDK, and `loadAdPodManifest()` preloads the ad pod manifest using a constructed URL. The `podId` should be unique for each ad break.\n"],null,["| **Note:** Before moving forward with this guide, you must complete the steps in [Set up the player class](/ad-manager/dynamic-ad-insertion/sdk/html5/hbbtv-player).\n\nIn `ads_manager.js`, define a wrapper class for the IMA SDK StreamManager that\nmakes stream requests, gets the ad pod manifest, listens to IMA stream events,\nand passes emsg events to the IMA SDK.\n\nIn `ads_manager.js`, the IMA HbbTV sample app sets up the following methods:\n\n- `requestStream()`\n- `onStreamEvent()`\n- `onEmsgEvent()`\n- `loadAdPodManifest()`\n\nInitialize ads manager\n\nInitialize the ads manager class and set listeners for the IMA stream events. In\nthis call, set the emsg event handler with the\n`VideoPlayer.setEmsgEventHandler()` method.\n**Key Point:** The IMA SDK does not support ad UI on HbbTV. Don't pass the `adUiElement` parameter in the `StreamManager` constructor. Passing `adUiElement` can lead to Ad Manager serving incompatible ads. \n\n /**\n * Wraps IMA SDK ad stream manager.\n * @param {!VideoPlayer} videoPlayer Reference an instance of the wrapper from\n * video_player.js.\n */\n var AdManager = function(videoPlayer) {\n this.streamData = null;\n this.videoPlayer = videoPlayer;\n // Ad UI is not supported for HBBTV, so no 'adUiElement' is passed in the\n // StreamManager constructor.\n this.streamManager = new google.ima.dai.api.StreamManager(\n this.videoPlayer.videoElement);\n this.streamManager.addEventListener(\n [\n google.ima.dai.api.StreamEvent.Type.STREAM_INITIALIZED,\n google.ima.dai.api.StreamEvent.Type.ERROR,\n google.ima.dai.api.StreamEvent.Type.CLICK,\n google.ima.dai.api.StreamEvent.Type.STARTED,\n google.ima.dai.api.StreamEvent.Type.FIRST_QUARTILE,\n google.ima.dai.api.StreamEvent.Type.MIDPOINT,\n google.ima.dai.api.StreamEvent.Type.THIRD_QUARTILE,\n google.ima.dai.api.StreamEvent.Type.COMPLETE,\n google.ima.dai.api.StreamEvent.Type.AD_BREAK_STARTED,\n google.ima.dai.api.StreamEvent.Type.AD_BREAK_ENDED,\n google.ima.dai.api.StreamEvent.Type.AD_PROGRESS,\n google.ima.dai.api.StreamEvent.Type.PAUSED,\n google.ima.dai.api.StreamEvent.Type.RESUMED\n ],\n this.onStreamEvent.bind(this),\n false);\n\n this.videoPlayer.setEmsgEventHandler(this.onEmsgEvent, this);\n }; \n https://github.com/googleads/googleads-ima-html5-dai/blob/d215db4a053d12c842e899da470684142ff732f6/hbbtv/ads_manager.js#L18-L50\n\nMake a request for an ad pod stream\n\nCreate the `AdManager.requestStream()` method to create a `PodStreamRequest`\nobject using your Google Ad Manager network code and the stream's custom asset\nkey. Test your HbbTV app using the IMA sample DASH pod serving stream with the\nfollowing stream parameters:\n\n- **Network code** : `'21775744923'`\n- **Custom asset key** : `'hbbtv-dash'`\n\n /**\n * Makes a pod stream request.\n * @param {string} networkCode The network code.\n * @param {string} customAssetKey The custom asset key.\n */\n AdManager.prototype.requestStream = function(networkCode, customAssetKey) {\n var streamRequest = new google.ima.dai.api.PodStreamRequest();\n streamRequest.networkCode = networkCode;\n streamRequest.customAssetKey = customAssetKey;\n streamRequest.format = 'dash';\n debugView.log('AdsManager: make PodStreamRequest');\n this.streamManager.requestStream(streamRequest);\n }; \n https://github.com/googleads/googleads-ima-html5-dai/blob/d215db4a053d12c842e899da470684142ff732f6/hbbtv/ads_manager.js#L54-L66\n\nListen to ad stream events\n\nCreate the `AdManager.onStreamEvent()` method to handle your app's response to\nthe IMA stream events, `STREAM_INITIALIZED`, `AD_BREAK_STARTED`, and\n`AD_BREAK_ENDED`. \n\n /**\n * Handles IMA playback events.\n * @param {!Event} event The event object.\n */\n AdManager.prototype.onStreamEvent = function(event) {\n switch (event.type) {\n // Once the stream response data is received, generate pod manifest url\n // for the video stream.\n case google.ima.dai.api.StreamEvent.Type.STREAM_INITIALIZED:\n debugView.log('IMA SDK: stream initialized');\n this.streamData = event.getStreamData();\n break;\n case google.ima.dai.api.StreamEvent.Type.ERROR:\n break;\n // Hide video controls while ad is playing.\n case google.ima.dai.api.StreamEvent.Type.AD_BREAK_STARTED:\n debugView.log('IMA SDK: ad break started');\n this.adPlaying = true;\n this.adBreakStarted = true;\n break;\n // Show video controls when ad ends.\n case google.ima.dai.api.StreamEvent.Type.AD_BREAK_ENDED:\n debugView.log('IMA SDK: ad break ended');\n this.adPlaying = false;\n this.adBreakStarted = false;\n break;\n // Update ad countdown timers.\n case google.ima.dai.api.StreamEvent.Type.AD_PROGRESS:\n break;\n default:\n debugView.log('IMA SDK: ' + event.type);\n break;\n }\n }; \n https://github.com/googleads/googleads-ima-html5-dai/blob/d215db4a053d12c842e899da470684142ff732f6/hbbtv/ads_manager.js#L70-L103\n\nHandle ad stream metadata\n\nTo pass the emsg event info to IMA, create the `AdManager.onEmsgEvent()` method\nusing the `StreamManager.processMetadata()` method. The video player class calls\nthis method with the `VideoPlayer.setEmsgEventHandler()` method. \n\n /**\n * Callback on Emsg event.\n * Instructs IMA SDK to fire back VAST events accordingly.\n * @param {!Event} event The event object.\n */\n AdManager.prototype.onEmsgEvent = function(event) {\n var data = event.event.messageData;\n var pts = event.event.calculatedPresentationTime;\n if ((data instanceof Uint8Array) && data.byteLength \u003e 0) {\n this.streamManager.processMetadata('ID3', data, pts);\n }\n }; \n https://github.com/googleads/googleads-ima-html5-dai/blob/d215db4a053d12c842e899da470684142ff732f6/hbbtv/ads_manager.js#L107-L118\n\nLoad the ad pod manifest\n\nCreate the `AdManager.loadAdPodManifest()` method to preload the ad pod manifest\nwith the video player. Construct the manifest URL using the structure in\n[Method: DASH pod manifest](/ad-manager/dynamic-ad-insertion/api/pod-serving/reference/live#method_dash_pod_manifest). \n\n /**\n * Creates DAI pod url and instructs video player to load manifest.\n * @param {string} networkCode The network code.\n * @param {string} customAssetKey The custom asset key.\n * @param {number} podDuration The duration of the ad pod.\n */\n AdManager.prototype.loadAdPodManifest =\n function(networkCode, customAssetKey, podDuration) {\n if (!this.streamData) {\n debugView.log('IMA SDK: No DAI pod session registered.');\n return;\n }\n\n var MANIFEST_BASE_URL = 'https://dai.google.com/linear/pods/v1/dash/network/';\n // Method: DASH pod manifest reference docs:\n // https://developers.google.com/ad-manager/dynamic-ad-insertion/api/pod-serving/reference/live#method_dash_pod_manifest\n var manifestUrl = MANIFEST_BASE_URL + networkCode + '/custom_asset/' +\n customAssetKey + '/stream/' + this.streamData.streamId + '/pod/' +\n this.getPodId() + '/manifest.mpd?pd=' + podDuration;\n this.videoPlayer.preload(manifestUrl);\n }; \n https://github.com/googleads/googleads-ima-html5-dai/blob/d215db4a053d12c842e899da470684142ff732f6/hbbtv/ads_manager.js#L122-L142\n\nThe\n[HbbTV sample app](//github.com/googleads/googleads-ima-html5-dai/tree/main/hbbtv)\nuses a randomly generated unique `podId`. In production apps, the `podId` is an\ninteger that starts at one, and increments by one for each ad break. Verify the\n`podId` is the same value for all viewers of the ad break. To get a `podId`, we\nrecommend using the\n[Early ad break notifications](/ad-manager/video/Early.ad.break.notification)\n(EABN) API. In a production environment, include the `podId` and `podDuration`\nin the HbbTV stream event `AD_BREAK_ANNOUNCE`.\n\nNext, create the main application class for your HbbTV app that interacts with\nthe HbbTV broadcast."]]
