Examples with AudioAttributes com.google.android.exoplayer2.audio.AudioAttributes used on opensource projects

Example 1 with AudioAttributes

use of com.google.android.exoplayer2.audio.AudioAttributes in project android-UniversalMusicPlayer by googlesamples.

the class LocalPlayback method play.

@Override
public void play(QueueItem item) {
    mPlayOnFocusGain = true;
    tryToGetAudioFocus();
    registerAudioNoisyReceiver();
    String mediaId = item.getDescription().getMediaId();
    boolean mediaHasChanged = !TextUtils.equals(mediaId, mCurrentMediaId);
    if (mediaHasChanged) {
        mCurrentMediaId = mediaId;
    }
    if (mediaHasChanged || mExoPlayer == null) {
        // release everything except the player
        releaseResources(false);
        MediaMetadataCompat track = mMusicProvider.getMusic(MediaIDHelper.extractMusicIDFromMediaID(item.getDescription().getMediaId()));
        String source = track.getString(MusicProviderSource.CUSTOM_METADATA_TRACK_SOURCE);
        if (source != null) {
            // Escape spaces for URLs
            source = source.replaceAll(" ", "%20");
        }
        if (mExoPlayer == null) {
            mExoPlayer = ExoPlayerFactory.newSimpleInstance(mContext, new DefaultTrackSelector(), new DefaultLoadControl());
            mExoPlayer.addListener(mEventListener);
        }
        // Android "O" makes much greater use of AudioAttributes, especially
        // with regards to AudioFocus. All of UAMP's tracks are music, but
        // if your content includes spoken word such as audiobooks or podcasts
        // then the content type should be set to CONTENT_TYPE_SPEECH for those
        // tracks.
        final AudioAttributes audioAttributes = new AudioAttributes.Builder().setContentType(CONTENT_TYPE_MUSIC).setUsage(USAGE_MEDIA).build();
        mExoPlayer.setAudioAttributes(audioAttributes);
        // Produces DataSource instances through which media data is loaded.
        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(mContext, Util.getUserAgent(mContext, "uamp"), null);
        // Produces Extractor instances for parsing the media data.
        ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
        // The MediaSource represents the media to be played.
        MediaSource mediaSource = new ExtractorMediaSource(Uri.parse(source), dataSourceFactory, extractorsFactory, null, null);
        // Prepares media to play (happens on background thread) and triggers
        // {@code onPlayerStateChanged} callback when the stream is ready to play.
        mExoPlayer.prepare(mediaSource);
        // If we are streaming from the internet, we want to hold a
        // Wifi lock, which prevents the Wifi radio from going to
        // sleep while the song is playing.
        mWifiLock.acquire();
    }
    configurePlayerState();
}