Carga anuncios previos al video para transmisiones en vivo
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el SDK de anuncios multimedia interactivos (IMA) de Google para iOS.
El SDK de IMA se puede usar para monetizar transmisiones en vivo y videos on demand.
En el caso de las transmisiones en vivo, debes realizar una nueva solicitud de anuncio para cada pausa publicitaria.
Escalona estas solicitudes para garantizar que todos tus usuarios no soliciten anuncios al mismo tiempo y ralenticen los servidores de anuncios.
Para ayudarte con esto, el SDK de IMA tiene la propiedad AdsRequest.liveStreamPrefetchSeconds
. Esta propiedad especifica la cantidad máxima de segundos que el SDK debe esperar antes de comunicarse con el servidor de anuncios después de que llames a AdsLoader.requestAds()
. La hora real de la solicitud se aleatorizará. Por ejemplo, si configuras AdsRequest.liveStreamPrefetchSeconds
en 30, el SDK espera entre 0 y 30 segundos después de que llamas a AdsLoader.requestAds()
para realizar la solicitud al servidor.
Prefetch de transmisiones en vivo en la práctica
Te recomendamos que realices una recuperación previa de tu próxima pausa publicitaria en cuanto finalice una.
Esto garantiza que la ventana de recuperación previa tenga la duración máxima posible.
Supongamos que tienes 5 minutos entre pausas publicitarias. Cuando finaliza una pausa publicitaria, puedes solicitar la siguiente con una ventana de carga previa de 290 segundos (5 minutos menos 10 segundos, para asegurarte de que las solicitudes enviadas al final de la ventana de carga previa tengan tiempo suficiente para resolverse):
Objective-C
- (void)adsManager:(IMAAdsManager *)adsManager didReceiveAdEvent:(IMAAdEvent *)event {
...
switch (event.type) {
...
case kIMAAdEvent_ALL_ADS_COMPLETED:
IMAAdsRequest *request = [[IMAAdsRequest alloc]
initWithAdTagUrl: self.adTagUrl
adDisplayContainer: self.adDisplayContainer
avPlayerVideoDisplay: self.avPlayerVideoDisplay
pictureInPictureProxy: self.pictureInPictureProxy
userContext: nil];
// set a delay between the end of the last ad
// in the last request, and the first ad from
// the new request
Float64 adGap = 30;
// make sure the request occurs at least five
// seconds before starting the new set of ads
request.liveStreamPrefetchSeconds = adGap - 5;
[self.adsLoader requestAdsWithRequest:request];
// start new ads after adGap seconds have elapsed
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, adGap * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
[adsManager start];
});
break;
...
}
...
}
Swift
func adsManager(_ adsManager: IMAAdsManager!, didReceive event: IMAAdEvent!) {
switch event.type {
...
case IMAAdEventType.ALL_ADS_COMPLETED:
let request = IMAAdsRequest(
adTagUrl: AdTagUrl,
adDisplayContainer: adDisplayContainer,
contentPlayhead: contentPlayhead,
userContext: nil)
// set a delay between the end of the last ad
// in the last request, and the first ad from
// the new request
let adGap = 30
// make sure the request occurs at least five
// seconds before starting the new set of ads
request.liveStreamPrefetchSeconds = adGap - 5
adsLoader.requestAds(with: request)
// start new ads after adGap seconds have elapsed
DispatchQueue.main.asyncAfter(deadline: .now() + adGap) {
adsManager.start()
}
break
...
}
}
Salvo que se indique lo contrario, el contenido de esta página está sujeto a la licencia Atribución 4.0 de Creative Commons, y los ejemplos de código están sujetos a la licencia Apache 2.0. Para obtener más información, consulta las políticas del sitio de Google Developers. Java es una marca registrada de Oracle o sus afiliados.
Última actualización: 2025-08-01 (UTC)
[null,null,["Última actualización: 2025-08-01 (UTC)"],[[["\u003cp\u003eThe IMA SDK allows for monetization of both live streams and video-on-demand content through ad integration.\u003c/p\u003e\n"],["\u003cp\u003eFor live streams, stagger ad requests using the \u003ccode\u003eAdsRequest.liveStreamPrefetchSeconds\u003c/code\u003e property to prevent ad server overload.\u003c/p\u003e\n"],["\u003cp\u003eSetting \u003ccode\u003eAdsRequest.liveStreamPrefetchSeconds\u003c/code\u003e introduces a randomized delay (within the specified range) before the SDK requests ads, helping distribute the load.\u003c/p\u003e\n"],["\u003cp\u003eIt's recommended to pre-fetch the next ad break immediately after the current one finishes, maximizing the available pre-fetch window and ensuring smooth transitions.\u003c/p\u003e\n"],["\u003cp\u003eThe provided code examples demonstrate how to implement live stream ad pre-fetching in Objective-C and Swift, including setting an appropriate pre-fetch window to avoid delays.\u003c/p\u003e\n"]]],[],null,["# Load pre-roll ads for livestream\n\nthe Google Interactive Media Ads (IMA) SDK for iOS.\n\nThe IMA SDK can be used to monetize live streams as well as video-on-demand.\nFor live streams, you need to make a new ad request for each ad break.\nStagger these requests to ensure that all of your viewers aren't requesting\nads at the same time and bogging down the ad server(s).\n\nTo help with this, the IMA SDK has the `AdsRequest.liveStreamPrefetchSeconds`\nproperty. This property specifies the maximum number of seconds the SDK\nshould wait before reaching out to the ad server after you call\n`AdsLoader.requestAds()`. The actual request time will be randomized. For\nexample, if you set `AdsRequest.liveStreamPrefetchSeconds` to 30, the SDK\nwaits 0 to 30 seconds after you call `AdsLoader.requestAds()` to actually\nmake the request to the server.\n\nLive stream pre-fetch in practice\n---------------------------------\n\nWe recommend pre-fetching your next ad break as soon as an ad break completes.\nThis ensures the maximum length of time is available for your pre-fetch window.\nSuppose you have 5 minutes between ad breaks. When an ad break completes,\nyou can request your next ad break with a pre-fetch window of 290 seconds\n(5 minutes minus 10 seconds, to make sure the requests sent at the end of\nthe pre-fetch window have enough time to resolve): \n\n### Objective-C\n\n\n - (void)adsManager:(IMAAdsManager *)adsManager didReceiveAdEvent:(IMAAdEvent *)event {\n\n ...\n\n switch (event.type) {\n\n ...\n\n case kIMAAdEvent_ALL_ADS_COMPLETED:\n\n IMAAdsRequest *request = [[IMAAdsRequest alloc]\n initWithAdTagUrl: self.adTagUrl\n adDisplayContainer: self.adDisplayContainer\n avPlayerVideoDisplay: self.avPlayerVideoDisplay\n pictureInPictureProxy: self.pictureInPictureProxy\n userContext: nil];\n\n // set a delay between the end of the last ad\n // in the last request, and the first ad from\n // the new request\n Float64 adGap = 30;\n // make sure the request occurs at least five\n // seconds before starting the new set of ads\n request.liveStreamPrefetchSeconds = adGap - 5;\n [self.adsLoader requestAdsWithRequest:request];\n // start new ads after adGap seconds have elapsed\n dispatch_after(dispatch_time(DISPATCH_TIME_NOW, adGap * NSEC_PER_SEC), dispatch_get_main_queue(), ^{\n [adsManager start];\n });\n\n break;\n\n ...\n\n }\n\n ...\n\n }\n\n### Swift\n\n func adsManager(_ adsManager: IMAAdsManager!, didReceive event: IMAAdEvent!) {\n switch event.type {\n\n ...\n\n case IMAAdEventType.ALL_ADS_COMPLETED:\n\n let request = IMAAdsRequest(\n adTagUrl: AdTagUrl,\n adDisplayContainer: adDisplayContainer,\n contentPlayhead: contentPlayhead,\n userContext: nil)\n\n // set a delay between the end of the last ad\n // in the last request, and the first ad from\n // the new request\n let adGap = 30\n // make sure the request occurs at least five\n // seconds before starting the new set of ads\n request.liveStreamPrefetchSeconds = adGap - 5\n adsLoader.requestAds(with: request)\n // start new ads after adGap seconds have elapsed\n DispatchQueue.main.asyncAfter(deadline: .now() + adGap) {\n adsManager.start()\n }\n\n break\n\n ...\n }\n }"]]