
On receiving a fetch error for an ad that would otherwise play based on an initial/seek position, the pending content position wasn't cleared which meant that position reporting was broken after a fetch error. Fix this by always clearing the pending position (if there was a pending position that will have triggered the fetch error). Also deduplicate the code for handling empty ad groups (fetch errors) and ad group load errors. Issue: #7956 PiperOrigin-RevId: 334113131
ExoPlayer IMA extension
The IMA extension is an AdsLoader implementation wrapping the Interactive Media Ads SDK for Android. You can use it to insert ads alongside content.
Getting the extension
The easiest way to use the extension is to add it as a gradle dependency:
implementation 'com.google.android.exoplayer:extension-ima:2.X.X'
where 2.X.X
is the version, which must match the version of the ExoPlayer
library being used.
Alternatively, you can clone the ExoPlayer repository and depend on the module locally. Instructions for doing this can be found in ExoPlayer's top level README.
Using the extension
To use the extension, follow the instructions on the
Ad insertion page
of the developer guide. The AdsLoaderProvider
passed to the player's
DefaultMediaSourceFactory
should return an ImaAdsLoader
. Note that the IMA
extension only supports players which are accessed on the application's main
thread.
Resuming the player after entering the background requires some special handling
when playing ads. The player and its media source are released on entering the
background, and are recreated when returning to the foreground. When playing ads
it is necessary to persist ad playback state while in the background by keeping
a reference to the ImaAdsLoader
. When re-entering the foreground, pass the
same instance back when AdsLoaderProvider.getAdsLoader(Uri adTagUri)
is called
to restore the state. It is also important to persist the player position when
entering the background by storing the value of player.getContentPosition()
.
On returning to the foreground, seek to that position before preparing the new
player instance. Finally, it is important to call ImaAdsLoader.release()
when
playback has finished and will not be resumed.
You can try the IMA extension in the ExoPlayer demo app, which has test content
in the "IMA sample ad tags" section of the sample chooser. The demo app's
PlayerActivity
also shows how to persist the ImaAdsLoader
instance and the
player position when backgrounded during ad playback.
Links
- ExoPlayer documentation on ad insertion
- Javadoc: Classes matching
com.google.android.exoplayer2.ext.ima.*
belong to this module.