How can I play media with delay ?

I want to give delay ms to media source when creating it.
Is it possible ?
I need to define the delay when setting up the player.

```kotlin
val audioSource = mediaSource.createMediaSource(MediaItem.fromUri(audioUri))
audioPlayer.setMediaSource(audioSource) // -> Can I add delay to here ?
```

Or is there an empty media source that I can define the duration of?

For this:

```kotlin
ConcatenatingMediaSource(1SecondEmptySource(), MySource())
```