Develop Reference

Exoplayer - How to prevent rebuffering when it's on Repeat mode?

I'm using exoplayer 2, and have Repeat mode on, meaning it will keep playing the video once it reaches the end. However, after the video ends and plays again, it keeps rebuffering (reloading the video). How do I prevent this from happening?
player = new SimpleExoPlayer.Builder(mContext).build();
player.setPlayWhenReady(false);
player.setRepeatMode(Player.REPEAT_MODE_ONE);
Edit1:
Have tried using LoopingMediaSource, not sure if I am doing it correctly though?
Because it still rebuffers when it automatically replays the video.
DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(mContext,
Util.getUserAgent(mContext, "yourApplicationName"));
Uri uri = Uri.parse(mUrl);
MediaSource videoSource =
new ProgressiveMediaSource.Factory(dataSourceFactory)
.createMediaSource(uri);
LoopingMediaSource loopingMediaSource = new LoopingMediaSource(videoSource);
player.prepare(loopingMediaSource);

When it comes to video buffering this is inevitable, as only a portion of the video is kept in memory.
What you can try is to adjust the buffering duration by setting a custom load control. Tune the setBufferDurationsMs parameters to achieve your expected results.
final DefaultTrackSelector trackSelector = new DefaultTrackSelector(context);
final DefaultLoadControl loadControl = new DefaultLoadControl
.Builder()
.setBufferDurationsMs(25000, 50000, 1500, 2000)
.build();
player = new SimpleExoPlayer
.Builder(context)
.setTrackSelector(trackSelector)
.setLoadControl(loadControl)
.build();
If by adjusting the parameters in setBufferDurationMs you can't still get the desired results, then you may need to implement the drip-feeding technique to improve rebuffering. Next a tutorial about how to implement such technique, targeted at ExoPlayer:
https://medium.com/#filipluch/how-to-improve-buffering-by-4-times-with-drip-feeding-technique-in-exoplayer-on-android-b59eb0c4d9cc

You need cache data in ExoPlayer
Create a custom cache data source factory
public class CacheDataSourceFactory implements DataSource.Factory {
private final Context context;
private final DefaultDataSourceFactory defaultDatasourceFactory;
private final long maxFileSize, maxCacheSize;
public CacheDataSourceFactory(Context context, long maxCacheSize, long maxFileSize) {
super();
this.context = context;
this.maxCacheSize = maxCacheSize;
this.maxFileSize = maxFileSize;
String userAgent = Util.getUserAgent(context, context.getString(R.string.app_name));
DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
defaultDatasourceFactory = new DefaultDataSourceFactory(this.context,
bandwidthMeter,
new DefaultHttpDataSourceFactory(userAgent, bandwidthMeter));
}
#Override
public DataSource createDataSource() {
LeastRecentlyUsedCacheEvictor evictor = new LeastRecentlyUsedCacheEvictor(maxCacheSize);
SimpleCache simpleCache = new SimpleCache(new File(context.getCacheDir(), "media"), evictor);
return new CacheDataSource(simpleCache, defaultDatasourceFactory.createDataSource(),
new FileDataSource(), new CacheDataSink(simpleCache, maxFileSize),
CacheDataSource.FLAG_BLOCK_ON_CACHE | CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR, null);
}
}
And the player
BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
TrackSelection.Factory videoTrackSelectionFactory =
new AdaptiveTrackSelection.Factory(bandwidthMeter);
TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);
SimpleExoPlayer exoPlayer = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
MediaSource audioSource = new ExtractorMediaSource(Uri.parse(url),
new CacheDataSourceFactory(context, 100 * 1024 * 1024, 5 * 1024 * 1024), new DefaultExtractorsFactory(), null, null);
exoPlayer.setPlayWhenReady(true);
exoPlayer.prepare(audioSource);

Try to use LoopingMediaSource and put it to player by:
player.prepare(loopingMediaSource)

My ExoPlayer is keeps on buffering even with good data connectivity

I am using ExoPlayer to play videos from URL. For some reason, my video keeps on buffering even it is low size video also. Please find the code snippet below which I have used to build ExoPlayer.
private MediaSource buildMediaStore(String mediaUrl) {
Uri videoUri = Uri.parse(mediaUrl);
DataSource.Factory dataSourceFactory = new DefaultHttpDataSourceFactory(Util.getUserAgent(this, getApplicationInfo().packageName), defaultBandwidthMeter);
DefaultExtractorsFactory extractorFactory = new DefaultExtractorsFactory();
return new ExtractorMediaSource(videoUri, dataSourceFactory, extractorFactory, null, null);
}
defaultBandwidthMeter = new DefaultBandwidthMeter();
TrackSelection.Factory trackSelectionFactory = new AdaptiveTrackSelection.Factory(defaultBandwidthMeter);
exoPlayer = ExoPlayerFactory.newSimpleInstance(new DefaultRenderersFactory(ViewVideoNewPotriateFullScreen.this),
new DefaultTrackSelector(trackSelectionFactory), new DefaultLoadControl());
MediaSource datasource = buildMediaStore(url);
exoPlayer.prepare(datasource, true, true);
simpleExoPlayer.setPlayer(exoPlayer);
simpleExoPlayer.setResizeMode(AspectRatioFrameLayout.RESIZE_MODE_ZOOM);
exoPlayer.setRepeatMode(Player.REPEAT_MODE_OFF);
exoPlayer.setPlayWhenReady(true);
exoPlayer.seekTo(getIntent().getLongExtra("position", 0));
//updateTimers();
exoPlayer.addListener(this);

How to create a dialog with available qualities of DASH content in ExoPlayer?

I am using Exoplayer in my application and I want to show DashMediaSource.
I did it and the video will play this Code:
DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this, Util.getUserAgent(this, "ExoPlayer"));
Uri uri = Uri.parse(videoUrl);
DashMediaSource dashMediaSource = new DashMediaSource(uri, dataSourceFactory,
new DefaultDashChunkSource.Factory(dataSourceFactory), null, null);
BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
TrackSelector trackSelector = new DefaultTrackSelector(new AdaptiveTrackSelection.Factory(bandwidthMeter));
player = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
simpleExoPlayerView.setPlayer(player);
player.prepare(dashMediaSource);
But I need to show the user a selector for the quality of this vide0.
I just want to get all available qualities from my dash file and show it to the use.
In ExoPlayer 1.5.8, I used getTrackCount() to get all available qualities but in ExoPlayer 2.5.3 it is not available anymore.
How can I do that?
I really appreciate your help.

Have you tried using AnalyticsListener?
player.addAnalyticsListener(new AnalyticsListener() {
#Override
public void onBandwidthEstimate(EventTime eventTime, int totalLoadTimeMs, long totalBytesLoaded, long bitrateEstimate) {
}
});

How to re-add a mediasource after the exoplayer has been prepared?

I'm creating a playlist video player in exoplayer in android studio. I'm adding the first video extracted from a server and it is being played by the exoplayer perfectly. But when I add the second part, the exoplayer does not play that video. I want to add the second video after the exoplayer has been prepared. I want to know how to do that. Please Help me.
My MainActivity.java:
public class MainActivity extends AppCompatActivity
{
SimpleExoPlayer video_player;
PlayerView player_screen;
DefaultTrackSelector track_selector;
DefaultBandwidthMeter band_width_meter = new DefaultBandwidthMeter();
ArrayList<MediaSource> mediaSources_contents = new ArrayList<>();
ConcatenatingMediaSource concatenating_mediaSource_contents;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
player_screen = (PlayerView) findViewById(R.id.player_screen);
player_screen.requestFocus();
TrackSelection.Factory video_track_selection_factory = new AdaptiveTrackSelection.Factory(band_width_meter);
track_selector = new DefaultTrackSelector(video_track_selection_factory);
video_player = ExoPlayerFactory.newSimpleInstance(this, track_selector);
player_screen.setPlayer(video_player);
video_player.setPlayWhenReady(true);
Uri url1 = Uri.parse("THE - URL - OF - FIRST - VIDEO");
DataSource.Factory data_source_factory = new DefaultDataSourceFactory(this, Util.getUserAgent(this, "Application Name"), band_width_meter);
MediaSource source1 = new ExtractorMediaSource.Factory(data_source_factory).createMediaSource(url1);
mediaSources_contents.add(source1);
concatenating_mediaSource_contents = new ConcatenatingMediaSource(mediaSources_contents.toArray(new MediaSource[mediaSources_contents.size()]));
video_player.prepare(concatenating_mediaSource_contents);
// The lines below this point adds the second video to the media source. But it is not being played by the exoplayer.
Uri url2 = Uri.parse("THE - URL - OF - SECOND - VIDEO");
MediaSource source2 = new ExtractorMediaSource.Factory(data_source_factory).createMediaSource(url2);
mediaSources_contents.add(source2);
}
}

At Prepared Time
Initialize ConcatenatingMediaSource
ConcatenatingMediaSource mediaSource = new ConcatenatingMediaSource();
MediaSource firstSource = new ProgressiveMediaSource.Factory(new FileDataSourceFactory()).createMediaSource(Uri.parse(uri.get(0)));
MediaSource secondSource= new ProgressiveMediaSource.Factory(new FileDataSourceFactory()).createMediaSource(Uri.parse(uri.get(1)));
mediaSource.addMediaSources(firstSource);
mediaSource.addMediaSources(secondSource);
player.prepare(mediaSource, true, false);
After Prepare Add mediasource
MediaSource thirdSource= new ProgressiveMediaSource.Factory(new FileDataSourceFactory()).createMediaSource(Uri.parse(uri.get(3)));
mediaSource.addMediaSources(thirdSource);// mediaSource is refrance of ConcatenatingMediaSource

Try add this concatenating_mediaSource_contents.addMediaSource(source2); instead mediaSources_contents.add(source2);and for first media source also (not necessary, for better readability)

Android Exoplayer 2 UDP Decoding issue

I'm new on ExoPlayer , i'm currently heading to use it to play Native Udp Stream ( From french digital Television : 1080p 5-10 mbps in Variable bitrate )
I manage to play some udp stream with some tests videos from http://jell.yfish.us/ on different devices .
I have make some different video decoding test with HLS and Udp Streaming with this code for UDP :
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.myactivity);
sufaceview = (SurfaceView) findViewById(R.id.surfaceView2);
BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
TrackSelection.Factory videoTrackSelectionFactory =
new AdaptiveTrackSelection.Factory(bandwidthMeter);
TrackSelector trackSelector =
new DefaultTrackSelector(videoTrackSelectionFactory);
LoadControl loadControl = new DefaultLoadControl(
new DefaultAllocator(true, C.DEFAULT_BUFFER_SEGMENT_SIZE),
15000, 60000, 2500, 6000);
player = ExoPlayerFactory.newSimpleInstance(this, trackSelector, loadControl);
Uri uri =
Uri.parse
("udp://#239.192.2.2:1234");
final DefaultBandwidthMeter bandwidthMeterA = new DefaultBandwidthMeter();
DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this,
Util.getUserAgent(this, "teveolauncher"), bandwidthMeterA);
extractorsFactory = new DefaultExtractorsFactory();
DataSource.Factory udsf = new UdpDataSource.Factory() {
#Override
public DataSource createDataSource() {
return new UdpDataSource(null, 3000, 100000);
}
};
ExtractorsFactory tsExtractorFactory = new ExtractorsFactory() {
#Override
public Extractor[] createExtractors() {
return new TsExtractor[]{new TsExtractor(MODE_SINGLE_PMT,
new TimestampAdjuster(0), new DefaultTsPayloadReaderFactory())};
}
};
MediaSource videoSource = new ExtractorMediaSource
(uri, udsf, tsExtractorFactory, null, null);
player.setVideoSurfaceView(sufaceview);
player.prepare(videoSource);
player.setPlayWhenReady(true);
}
For HLS I just Change the MediaSource and the datasourceFactory :
DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this,
Util.getUserAgent(this, "teveolauncher"), bandwidthMeterA);
MediaSource videoSource = new HlsMediaSource
(uri, dataSourceFactory, null, null);
I Know Udpstreaming is not officialy supported by ExoPlayer but the UdpDataSource class seems to work well.
After all the test , i noticed video with a variable biterate like french DTT can't be decoded correctly but with Constatnt biterate video like Jell yfish the decoding process is perfect .
There is some coding improvement to make VBR video decoded correctly ?
Thank you by advance :)
Sorry for my bad english :)

Uri uri = Uri.parse("udp://#239.192.2.2:1234");
I think UDP is not a protocol - it's a transport, (like TCP). You can't use a tcp://host:port/ URL either.
Or does it work?