Must be called once per {@linkplain #onTrackCount(int) declared} track. * *
Must be called from the thread that will be used to call the returned {@link - * SampleConsumer}'s methods. This thread is generally different from the one used to access the - * {@link AssetLoader} methods. + * SampleConsumer}'s methods. This thread must be the same for all the tracks added, and is + * generally different from the one used to access the {@link AssetLoader} methods. * * @param format The {@link Format} of the input media (prior to video slow motion flattening or * to decoding). diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/CompositeAssetLoader.java b/libraries/transformer/src/main/java/androidx/media3/transformer/CompositeAssetLoader.java index 900b20188b..430f640a6e 100644 --- a/libraries/transformer/src/main/java/androidx/media3/transformer/CompositeAssetLoader.java +++ b/libraries/transformer/src/main/java/androidx/media3/transformer/CompositeAssetLoader.java @@ -146,7 +146,7 @@ import java.util.concurrent.atomic.AtomicInteger; * *
There can't be more than one {@link OnMediaItemChangedListener} for the same track type. * - *
Can be called from any thread. + *
Must always be called from the same thread. This thread can be any thread. * * @param onMediaItemChangedListener The {@link OnMediaItemChangedListener}. * @param trackType The {@link C.TrackType} for which to listen to {@link MediaItem} change