Load a media resource in the MediaPlayer

Load a resource by directly instantiating a MediaResource and loading the video content to be played. This is one way of loading a media resource.

1. Set your MediaPlayer’s playable item with the new resource to be played.

   Replace your existing MediaPlayer’s currently playable item by calling MediaPlayer.replaceCurrentItem and passing an existing MediaResource instance.

2. Register an implementation of the MediaPlayer.PlaybackEventListener interface with the MediaPlayer instance.

   • onPrepared
   • onStateChanged, and check for INITIALIZED and ERROR.

3. When the state of the media player changes to INITIALIZED, you can call MediaPlayer.prepareToPlay

   The INITIALIZED state indicates that the media has been successfully loaded. Calling prepareToPlay starts the advertising resolution and placement process, if any.

4. When TVSDK calls the onPrepared callback, the media stream has successfully loaded and is prepared for playback.

   When the media stream is loaded, a MediaPlayerItem is created.

If a failure occurs, the MediaPlayer switches to the ERROR status. It also notifies your application by calling your PlaybackEventListener.onStateChangedcallback.

This passes several parameters:

• A state parameter of type MediaPlayer.PlayerState with the value of MediaPlayer.PlayerState.ERROR.

• A notification parameter of type MediaPlayerNotification that contains diagnostic information about the error event.

The following simplified sample code illustrates the process of loading a media resource:

// mediaResource is a properly configured MediaResource instance
// mediaPlayer is a MediaPlayer instance
// register a PlaybackEventListener implementation with the MediaPlayer
instancemediaPlayer.addEventListener(
  MediaPlayer.Event.PLAYBACK,
  new MediaPlayer.PlaybackEventListener()) {
    @Overridepublic void onPrepared() {
        // at this point, the resource is successfully loaded and available
        // and the MediaPlayer is ready to start the playback
        // once the resource is loaded, the MediaPlayer is able to
        // provide a reference to the current "playable item"

        MediaPlayerItem playerItem = mediaPlayer.CurrentItem();

        if (playerItem != null) {
            // here we can take a look at the properties of the
            // loaded stream
        }
    } @Overridepublic void onStateChanged(
        MediaPlayer.PlayerState state,
        MediaPlayerNotification notification) {
        if (state == MediaPlayer.PlayerState.ERROR) {
            // something bad happened - the resource cannot be loaded
            // details about the problem are provided via the
            // MediaPlayerNotification instance
        }
        elseif (state == MediaPlayer.PlayerState.INITIALIZED) {
            mediaPlayer.prepareToPlay();
        }
    }
    // implementation of the other methods in the PlaybackEventListener interface...
}

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