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Code Issues Projects Releases Packages Wiki Activity Actions

Use ERROR_CODE_BEHIND_LIVE_WINDOW instead of instanceof checks

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PiperOrigin-RevId: 375514509
This commit is contained in:
aquilescanta 2021-05-24 19:09:39 +01:00 committed by Oliver Woodman
parent afe4217c1c
commit 6a8b9557cc
2 changed files with 6 additions and 33 deletions
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18
demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java
View file

@ -34,6 +34,7 @@ import androidx.appcompat.app.AppCompatActivity;
import com.google.android.exoplayer2.C; import com.google.android.exoplayer2.C;
import com.google.android.exoplayer2.ExoPlaybackException; import com.google.android.exoplayer2.ExoPlaybackException;
import com.google.android.exoplayer2.MediaItem; import com.google.android.exoplayer2.MediaItem;
import com.google.android.exoplayer2.PlaybackException;
import com.google.android.exoplayer2.Player; import com.google.android.exoplayer2.Player;
import com.google.android.exoplayer2.RenderersFactory; import com.google.android.exoplayer2.RenderersFactory;
import com.google.android.exoplayer2.SimpleExoPlayer; import com.google.android.exoplayer2.SimpleExoPlayer;
@ -43,7 +44,6 @@ import com.google.android.exoplayer2.ext.ima.ImaAdsLoader;
import com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.DecoderInitializationException; import com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.DecoderInitializationException;
import com.google.android.exoplayer2.mediacodec.MediaCodecUtil.DecoderQueryException; import com.google.android.exoplayer2.mediacodec.MediaCodecUtil.DecoderQueryException;
import com.google.android.exoplayer2.offline.DownloadRequest; import com.google.android.exoplayer2.offline.DownloadRequest;
import com.google.android.exoplayer2.source.BehindLiveWindowException;
import com.google.android.exoplayer2.source.DefaultMediaSourceFactory; import com.google.android.exoplayer2.source.DefaultMediaSourceFactory;
import com.google.android.exoplayer2.source.MediaSourceFactory; import com.google.android.exoplayer2.source.MediaSourceFactory;
import com.google.android.exoplayer2.source.TrackGroupArray; import com.google.android.exoplayer2.source.TrackGroupArray;
@ -413,20 +413,6 @@ public class PlayerActivity extends AppCompatActivity
Toast.makeText(getApplicationContext(), message, Toast.LENGTH_LONG).show(); Toast.makeText(getApplicationContext(), message, Toast.LENGTH_LONG).show();
} }
private static boolean isBehindLiveWindow(ExoPlaybackException e) {
if (e.type != ExoPlaybackException.TYPE_SOURCE) {
return false;
}
Throwable cause = e.getSourceException();
while (cause != null) {
if (cause instanceof BehindLiveWindowException) {
return true;
}
cause = cause.getCause();
}
return false;
}
private class PlayerEventListener implements Player.EventListener { private class PlayerEventListener implements Player.EventListener {
@Override @Override
@ -439,7 +425,7 @@ public class PlayerActivity extends AppCompatActivity
@Override @Override
public void onPlayerError(@NonNull ExoPlaybackException e) { public void onPlayerError(@NonNull ExoPlaybackException e) {
if (isBehindLiveWindow(e)) { if (e.errorCode == PlaybackException.ERROR_CODE_BEHIND_LIVE_WINDOW) {
player.seekToDefaultPosition(); player.seekToDefaultPosition();
player.prepare(); player.prepare();
} else { } else {

21
docs/live-streaming.md
View file

@ -130,11 +130,12 @@ Available configuration values are:
If automatic playback speed adjustment is not desired, it can be disabled by If automatic playback speed adjustment is not desired, it can be disabled by
setting `minPlaybackSpeed` and `maxPlaybackSpeed` to `1.0f`. setting `minPlaybackSpeed` and `maxPlaybackSpeed` to `1.0f`.
## BehindLiveWindowException ## ## BehindLiveWindowException and ERROR_CODE_BEHIND_LIVE_WINDOW ##
The playback position may fall behind the live window, for example if the player The playback position may fall behind the live window, for example if the player
is paused or buffering for a long enough period of time. If this happens then is paused or buffering for a long enough period of time. If this happens then
playback will fail and a `BehindLiveWindowException` will be reported via playback will fail and an exception with error code
`ERROR_CODE_BEHIND_LIVE_WINDOW` will be reported via
`Player.Listener.onPlayerError`. Application code may wish to handle such `Player.Listener.onPlayerError`. Application code may wish to handle such
errors by resuming playback at the default position. The [PlayerActivity][] of errors by resuming playback at the default position. The [PlayerActivity][] of
the demo app exemplifies this approach. the demo app exemplifies this approach.
@ -142,7 +143,7 @@ the demo app exemplifies this approach.
~~~ ~~~
@Override @Override
public void onPlayerError(ExoPlaybackException e) { public void onPlayerError(ExoPlaybackException e) {
if (isBehindLiveWindow(e)) { if (e.errorCode == PlaybackException.ERROR_CODE_BEHIND_LIVE_WINDOW) {
// Re-initialize player at the current live window default position. // Re-initialize player at the current live window default position.
player.seekToDefaultPosition(); player.seekToDefaultPosition();
player.prepare(); player.prepare();
@ -150,20 +151,6 @@ public void onPlayerError(ExoPlaybackException e) {
// Handle other errors. // Handle other errors.
} }
} }
private static boolean isBehindLiveWindow(ExoPlaybackException e) {
if (e.type != ExoPlaybackException.TYPE_SOURCE) {
return false;
}
Throwable cause = e.getSourceException();
while (cause != null) {
if (cause instanceof BehindLiveWindowException) {
return true;
}
cause = cause.getCause();
}
return false;
}
~~~ ~~~
{: .language-java} {: .language-java}