ExoPlayer supports DASH with multiple container formats. Media streams must be demuxed, meaning that video, audio, and text must be defined in distinct`AdaptationSet`elements in the DASH manifest (CEA-608 is an exception as described in the table below). The contained audio and video sample formats must also be supported (see the[sample formats](https://developer.android.com/media/media3/exoplayer/supported-formats#sample-formats)section for details).

|                 Feature                 | Supported |                                        Comments                                         |
|-----------------------------------------|-----------|-----------------------------------------------------------------------------------------|
| **Containers**                          |           |                                                                                         |
| FMP4                                    | YES       | Demuxed streams only                                                                    |
| WebM                                    | YES       | Demuxed streams only                                                                    |
| Matroska                                | YES       | Demuxed streams only                                                                    |
| MPEG-TS                                 | NO        | No support planned                                                                      |
| **Closed captions /** **subtitles**     |           |                                                                                         |
| TTML                                    | YES       | Raw, or embedded in FMP4 according to ISO/IEC 14496-30                                  |
| WebVTT                                  | YES       | Raw, or embedded in FMP4 according to ISO/IEC 14496-30                                  |
| CEA-608                                 | YES       | Embedded in FMP4 when signalled using SCTE Accessibility descriptors                    |
| CEA-708                                 | YES       | Embedded in FMP4 when signalled using SCTE Accessibility descriptors                    |
| **Metadata**                            |           |                                                                                         |
| EMSG metadata                           | YES       | Embedded in FMP4                                                                        |
| **Content protection**                  |           |                                                                                         |
| Widevine                                | YES       | "cenc" scheme: API 19+; "cbcs" scheme: API 25+                                          |
| PlayReady SL2000                        | YES       | Android TV, "cenc" scheme only                                                          |
| ClearKey                                | YES       | API 21+, "cenc" scheme only                                                             |
| **Ad insertion**                        |           |                                                                                         |
| Multi-period playback                   | YES       |                                                                                         |
| Server-guided ad insertion (xlinks)     | NO        |                                                                                         |
| IMA server-side and client-side ads     | YES       | [Ad insertion guide](https://developer.android.com/media/media3/exoplayer/ad-insertion) |
| **Live playback**                       |           |                                                                                         |
| Regular live playback                   | YES       |                                                                                         |
| Ultra low-latency CMAF live playback    | YES       |                                                                                         |
| **Common Media Client Data** **(CMCD)** | YES       | [CMCD integration guide](https://developer.android.com/media/media3/exoplayer/cmcd)     |

## Using MediaItem

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

### Kotlin

```kotlin
implementation("androidx.media3:media3-exoplayer-dash:1.8.0")
```

### Groovy

```groovy
implementation "androidx.media3:media3-exoplayer-dash:1.8.0"
```

You can then create a`MediaItem`for a DASH MPD URI and pass it to the player.  

### Kotlin

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

### Java

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

<br />

If your URI doesn't end with`.mpd`, you can pass`MimeTypes.APPLICATION_MPD`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 DashMediaSource

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

### Kotlin

```kotlin
val dataSourceFactory: DataSource.Factory = DefaultHttpDataSource.Factory()
// Create a dash media source pointing to a dash manifest uri.
val mediaSource: MediaSource =
  DashMediaSource.Factory(dataSourceFactory).createMediaSource(MediaItem.fromUri(dashUri))
// Create a player instance which gets an adaptive track selector by default.
val player = ExoPlayer.Builder(context).build()
// Set the media source to be played.
player.setMediaSource(mediaSource)
// Prepare the player.
player.prepare()
```

### Java

```java
DataSource.Factory dataSourceFactory = new DefaultHttpDataSource.Factory();
// Create a dash media source pointing to a dash manifest uri.
MediaSource mediaSource =
    new DashMediaSource.Factory(dataSourceFactory)
        .createMediaSource(MediaItem.fromUri(dashUri));
// Create a player instance which gets an adaptive track selector by default.
ExoPlayer player = new ExoPlayer.Builder(context).build();
// Set the media source to be played.
player.setMediaSource(mediaSource);
// Prepare the player.
player.prepare();
```

<br />

## Accessing the manifest

You can retrieve the current manifest by calling`Player.getCurrentManifest`. For DASH you should cast the returned object to`DashManifest`. The`onTimelineChanged`callback of`Player.Listener`is also called whenever the manifest is loaded. This will happen once for a 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

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

### Java

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

<br />

## Customizing playback

ExoPlayer provides multiple ways for you to tailor playback experience to your app's needs. See the[Customization page](https://developer.android.com/guide/topics/media/exoplayer/customization)for examples.