# ExoPlayer Media2 extension #

The Media2 extension provides builders for [SessionPlayer][] and [MediaSession.SessionCallback][] in
the [Media2 library][].

Compared to [MediaSessionConnector][] that uses [MediaSessionCompat][], this provides finer grained
control for incoming calls, so you can selectively allow/reject commands per controller.

## Getting the extension ##

The easiest way to use the extension is to add it as a gradle dependency:

```gradle
implementation 'com.google.android.exoplayer:extension-media2:2.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][].

[top level README]: https://github.com/google/ExoPlayer/blob/release-v2/README.md

## Using the extension ##

### Using `SessionPlayerConnector` ###

`SessionPlayerConnector` is a [SessionPlayer][] implementation wrapping a given `Player`.
You can use a [SessionPlayer][] instance to build a [MediaSession][], or to set the player
associated with a [VideoView][] or [MediaControlView][]

### Using `SessionCallbackBuilder` ###

`SessionCallbackBuilder` lets you build a [MediaSession.SessionCallback][] instance given its
collaborators. You can use a [MediaSession.SessionCallback][] to build a [MediaSession][].

## Links ##

* [Javadoc][]: Classes matching
  `com.google.android.exoplayer2.ext.media2.*` belong to this module.

[Javadoc]: https://exoplayer.dev/doc/reference/index.html

[SessionPlayer]: https://developer.android.com/reference/androidx/media2/common/SessionPlayer
[MediaSession]: https://developer.android.com/reference/androidx/media2/session/MediaSession
[MediaSession.SessionCallback]: https://developer.android.com/reference/androidx/media2/session/MediaSession.SessionCallback
[Media2 library]: https://developer.android.com/jetpack/androidx/releases/media2
[MediaSessionCompat]: https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat
[MediaSessionConnector]: https://exoplayer.dev/doc/reference/com/google/android/exoplayer2/ext/mediasession/MediaSessionConnector.html
[VideoView]: https://developer.android.com/reference/androidx/media2/widget/VideoView
[MediaControlView]: https://developer.android.com/reference/androidx/media2/widget/MediaControlView