use of com.google.android.exoplayer2.upstream.DefaultDataSourceFactory 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();
}
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