SmoothStreaming

ExoPlayer supports SmoothStreaming with the FMP4 container format. Media streams must be demuxed, meaning that video, audio, and text must be defined in distinct StreamIndex elements in the SmoothStreaming manifest. The contained audio and video sample formats must also be supported (see the sample formats section for details).

Feature	Supported	Comments
Containers
FMP4	YES	Demuxed streams only
Closed captions/subtitles
TTML	YES	Embedded in FMP4
Content protection
PlayReady SL2000	YES	Android TV only
Live playback
Regular live playback	YES
Common Media Client Data (CMCD)	YES	Integration Guide

Using MediaItem

To play a SmoothStreaming stream, you need to depend on the SmoothStreaming module.

Kotlin

implementation("androidx.media3:media3-exoplayer-smoothstreaming:1.4.1")

Groovy

implementation "androidx.media3:media3-exoplayer-smoothstreaming:1.4.1"

You can then create a MediaItem for a SmoothStreaming manifest URI and pass it to the player.

Kotlin

// Create a player instance.
val player = ExoPlayer.Builder(context).build()
// Set the media item to be played.
player.setMediaItem(MediaItem.fromUri(ssUri))
// Prepare the player.
player.prepare()

Java

// Create a player instance.
ExoPlayer player = new ExoPlayer.Builder(context).build();
// Set the media item to be played.
player.setMediaItem(MediaItem.fromUri(ssUri));
// Prepare the player.
player.prepare();

If your URI doesn't end with .ism/Manifest, you can pass MimeTypes.APPLICATION_SS to setMimeType of MediaItem.Builder to explicitly indicate the type of the content.

ExoPlayer will automatically adapt between representations defined in the manifest, taking into account both available bandwidth and device capabilities.

Using SsMediaSource

For more customization options, you can create a SsMediaSource and pass it directly to the player instead of a MediaItem.

Kotlin

// Create a data source factory.
val dataSourceFactory: DataSource.Factory = DefaultHttpDataSource.Factory()
// Create a SmoothStreaming media source pointing to a manifest uri.
val mediaSource: MediaSource =
  SsMediaSource.Factory(dataSourceFactory).createMediaSource(MediaItem.fromUri(ssUri))
// Create a player instance.
val player = ExoPlayer.Builder(context).build()
// Set the media source to be played.
player.setMediaSource(mediaSource)
// Prepare the player.
player.prepare()

Java

// Create a data source factory.
DataSource.Factory dataSourceFactory = new DefaultHttpDataSource.Factory();
// Create a SmoothStreaming media source pointing to a manifest uri.
MediaSource mediaSource =
    new SsMediaSource.Factory(dataSourceFactory).createMediaSource(MediaItem.fromUri(ssUri));
// Create a player instance.
ExoPlayer player = new ExoPlayer.Builder(context).build();
// Set the media source to be played.
player.setMediaSource(mediaSource);
// Prepare the player.
player.prepare();

Accessing the manifest

You can retrieve the current manifest by calling Player.getCurrentManifest. For SmoothStreaming, you should cast the returned object to SsManifest. The onTimelineChanged callback of Player.Listener is also called whenever the manifest is loaded. This will happen once for on-demand content and possibly many times for live content. The following code snippet shows how an app can do something whenever the manifest is loaded.

Kotlin

player.addListener(
  object : Player.Listener {
    override fun onTimelineChanged(timeline: Timeline, @TimelineChangeReason reason: Int) {
      val manifest = player.currentManifest
      if (manifest is SsManifest) {
        // Do something with the manifest.
      }
    }
  }
)

Java

player.addListener(
    new Player.Listener() {
      @Override
      public void onTimelineChanged(
          Timeline timeline, @Player.TimelineChangeReason int reason) {
        Object manifest = player.getCurrentManifest();
        if (manifest != null) {
          SsManifest ssManifest = (SsManifest) manifest;
          // Do something with the manifest.
        }
      }
    });

Customizing playback

ExoPlayer provides multiple ways for you to tailor playback experience to your app's needs. See the Customization page for examples.