Expose currentPlaybackTime when live stream video (#1944)

* added trackId to exoplayer onLoad callback

* added trackInfo to bandwidth callback

* syntax fix

* syntax fix

* version update

* sending complete logcat for media playback exception ExoPlaybackException

* version bump

* package publish changes

* Live playback fix

* Version bump

* import fix

* version bump

* configurable preferredForwardBufferDuration

* configurable preferredForwardBufferDuration

* version update

* Exposing time

* exo player window current tsp

* return type

* Current window timestamp in epoch

* iOS changes

* version update

* Updated package.json

* updated version

* CurrentTime bug fix

* Updated package.json

* Updated currentPlaybackTime

* Updated currentPlayback logic

* Updated package.json

* Bug fix

* Added semicolon

* updated package.json

* Updated ReactVideoView

* updated verison

* Revert package.json changes

* Update ReactVideoView.java

* Use standard log

* Document preferredForwardBufferDuration (iOS)

* Document currentPlaybackTime

* Document trackId

* Update CHANGELOG.md

* Update CHANGELOG.md

* Update README.md

* Update CHANGELOG.md

Co-authored-by: anubansal <anu.bansal@curefit.com>
Co-authored-by: Sivakumar J <sivakumar@curefit.com>
Co-authored-by: parikshit <parikshit@curefit.com>
Co-authored-by: anubansal92 <40559524+anubansal92@users.noreply.github.com>
Co-authored-by: Rishu Agrawal <rishu.agrawal@v.curefit.com>
Co-authored-by: rishu-curefit <54575330+rishu-curefit@users.noreply.github.com>

CHANGELOG.md

@@ -6,6 +6,9 @@
 - Fix video dimensions being undefined when playing HLS in ios. [#1992](https://github.com/react-native-community/react-native-video/pull/1992)
 - Add support for audio mix with other apps for iOS. [#1978](https://github.com/react-native-community/react-native-video/pull/1978)
 - Properly implement pending seek for iOS. [#1994](https://github.com/react-native-community/react-native-video/pull/1994)
+- Added `preferredForwardBufferDuration` (iOS) - the duration the player should buffer media from the network ahead of the playhead to guard against playback disruption. (#1944)
+- Added `currentPlaybackTime` (Android ExoPlayer, iOS) - when playing an HLS live stream with a `EXT-X-PROGRAM-DATE-TIME` tag configured, then this property will contain the epoch value in msec. (#1944)
+- Added `trackId` (Android ExoPlayer) - Configure an identifier for the video stream to link the playback context to the events emitted. (#1944)
 
 ### Version 5.1.0-alpha5
 

README.md

@@ -277,6 +277,7 @@ var styles = StyleSheet.create({
 * [automaticallyWaitsToMinimizeStalling](#automaticallyWaitsToMinimizeStalling)
 * [bufferConfig](#bufferconfig)
 * [controls](#controls)
+* [currentPlaybackTime](#currentPlaybackTime)
 * [disableFocus](#disableFocus)
 * [filter](#filter)
 * [filterEnabled](#filterEnabled)
@@ -297,6 +298,7 @@ var styles = StyleSheet.create({
 * [playWhenInactive](#playwheninactive)
 * [poster](#poster)
 * [posterResizeMode](#posterresizemode)
+* [preferredForwardBufferDuration](#preferredForwardBufferDuration)
 * [progressUpdateInterval](#progressupdateinterval)
 * [rate](#rate)
 * [repeat](#repeat)
@@ -308,6 +310,7 @@ var styles = StyleSheet.create({
 * [source](#source)
 * [stereoPan](#stereopan)
 * [textTracks](#texttracks)
+* [trackId](#trackId)
 * [useTextureView](#usetextureview)
 * [volume](#volume)
 
@@ -386,6 +389,11 @@ bufferConfig={{
 
 Platforms: Android ExoPlayer
 
+#### currentPlaybackTime
+When playing an HLS live stream with a `EXT-X-PROGRAM-DATE-TIME` tag configured, then this property will contain the epoch value in msec.
+
+Platforms: Android ExoPlayer, iOS
+
 #### controls
 Determines whether to show player controls.
 * ** false (default)** - Don't show player controls
@@ -596,6 +604,13 @@ Determines how to resize the poster image when the frame doesn't match the raw v
 
 Platforms: all
 
+#### preferredForwardBufferDuration
+The duration the player should buffer media from the network ahead of the playhead to guard against playback disruption. Sets the [preferredForwardBufferDuration](https://developer.apple.com/documentation/avfoundation/avplayeritem/1643630-preferredforwardbufferduration) instance property on AVPlayerItem.
+
+Default: 0
+
+Platforms: iOS
+
 #### progressUpdateInterval
 Delay in milliseconds between onProgress events in milliseconds.
 
@@ -831,6 +846,11 @@ textTracks={[
 
 Platforms: Android ExoPlayer, iOS
 
+#### trackId
+Configure an identifier for the video stream to link the playback context to the events emitted.
+
+Platforms: Android ExoPlayer
+
 #### useTextureView
 Controls whether to output to a TextureView or SurfaceView.
 

Video.js

@@ -479,6 +479,7 @@ Video.propTypes = {
   rate: PropTypes.number,
   pictureInPicture: PropTypes.bool,
   playInBackground: PropTypes.bool,
+  preferredForwardBufferDuration: PropTypes.number,
   playWhenInactive: PropTypes.bool,
   ignoreSilentSwitch: PropTypes.oneOf(['ignore', 'obey']),
   reportBandwidth: PropTypes.bool,

android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java

@@ -64,6 +64,7 @@ import com.google.android.exoplayer2.upstream.BandwidthMeter;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DefaultAllocator;
 import com.google.android.exoplayer2.upstream.DefaultBandwidthMeter;
+import com.google.android.exoplayer2.upstream.HttpDataSource;
 import com.google.android.exoplayer2.util.Util;
 
 import java.net.CookieHandler;
@@ -161,7 +162,7 @@ class ReactExoplayerView extends FrameLayout implements
                             ) {
                         long pos = player.getCurrentPosition();
                         long bufferedDuration = player.getBufferedPercentage() * player.getDuration() / 100;
-                        eventEmitter.progressChanged(pos, bufferedDuration, player.getDuration());
+                        eventEmitter.progressChanged(pos, bufferedDuration, player.getDuration(), getPositionInFirstPeriodMsForCurrentWindow(pos));
                         msg = obtainMessage(SHOW_PROGRESS);
                         sendMessageDelayed(msg, Math.round(mProgressUpdateInterval));
                     }
@@ -169,6 +170,14 @@ class ReactExoplayerView extends FrameLayout implements
             }
         }
     };
+    
+    public double getPositionInFirstPeriodMsForCurrentWindow(long currentPosition) {
+        Timeline.Window window = new Timeline.Window();
+        if(!player.getCurrentTimeline().isEmpty()) {    
+            player.getCurrentTimeline().getWindow(player.getCurrentWindowIndex(), window);
+        }
+        return window.windowStartTimeMs + currentPosition;
+    }
 
     public ReactExoplayerView(ThemedReactContext context, ReactExoplayerConfig config) {
         super(context);
@@ -257,7 +266,15 @@ class ReactExoplayerView extends FrameLayout implements
     @Override
     public void onBandwidthSample(int elapsedMs, long bytes, long bitrate) {
         if (mReportBandwidth) {
-            eventEmitter.bandwidthReport(bitrate);
+            if (player == null) {
+                eventEmitter.bandwidthReport(bitrate, 0, 0, "-1");
+            } else {
+                Format videoFormat = player.getVideoFormat();
+                int width = videoFormat != null ? videoFormat.width : 0;
+                int height = videoFormat != null ? videoFormat.height : 0;
+                String trackId = videoFormat != null ? videoFormat.id : "-1";
+                eventEmitter.bandwidthReport(bitrate, height, width, trackId);
+            }
         }
     }
 
@@ -749,8 +766,9 @@ class ReactExoplayerView extends FrameLayout implements
             Format videoFormat = player.getVideoFormat();
             int width = videoFormat != null ? videoFormat.width : 0;
             int height = videoFormat != null ? videoFormat.height : 0;
+            String trackId = videoFormat != null ? videoFormat.id : "-1";
             eventEmitter.load(player.getDuration(), player.getCurrentPosition(), width, height,
-                    getAudioTrackInfo(), getTextTrackInfo(), getVideoTrackInfo());
+                    getAudioTrackInfo(), getTextTrackInfo(), getVideoTrackInfo(), trackId);
         }
     }
 
@@ -889,7 +907,7 @@ class ReactExoplayerView extends FrameLayout implements
 
     @Override
     public void onPlayerError(ExoPlaybackException e) {
-        String errorString = null;
+        String errorString = "ExoPlaybackException type : " + e.type;
         Exception ex = e;
         if (e.type == ExoPlaybackException.TYPE_RENDERER) {
             Exception cause = e.getRendererException();
@@ -914,12 +932,9 @@ class ReactExoplayerView extends FrameLayout implements
             }
         }
         else if (e.type == ExoPlaybackException.TYPE_SOURCE) {
-            ex = e.getSourceException();
             errorString = getResources().getString(R.string.unrecognized_media_format);
         }
-        if (errorString != null) {
+        eventEmitter.error(errorString, ex);
-            eventEmitter.error(errorString, ex);
-        }
         playerNeedsSource = true;
         if (isBehindLiveWindow(e)) {
             clearResumePosition();
@@ -930,12 +945,14 @@ class ReactExoplayerView extends FrameLayout implements
     }
 
     private static boolean isBehindLiveWindow(ExoPlaybackException e) {
+        Log.e("ExoPlayer Exception", e.toString());
         if (e.type != ExoPlaybackException.TYPE_SOURCE) {
             return false;
         }
         Throwable cause = e.getSourceException();
         while (cause != null) {
-            if (cause instanceof BehindLiveWindowException) {
+            if (cause instanceof BehindLiveWindowException ||
+                    cause instanceof HttpDataSource.HttpDataSourceException) {
                 return true;
             }
             cause = cause.getCause();

android-exoplayer/src/main/java/com/brentvatne/exoplayer/VideoEventEmitter.java

@@ -107,8 +107,10 @@ class VideoEventEmitter {
     private static final String EVENT_PROP_PLAYABLE_DURATION = "playableDuration";
     private static final String EVENT_PROP_SEEKABLE_DURATION = "seekableDuration";
     private static final String EVENT_PROP_CURRENT_TIME = "currentTime";
+    private static final String EVENT_PROP_CURRENT_PLAYBACK_TIME = "currentPlaybackTime";
     private static final String EVENT_PROP_SEEK_TIME = "seekTime";
     private static final String EVENT_PROP_NATURAL_SIZE = "naturalSize";
+    private static final String EVENT_PROP_TRACK_ID = "trackId";
     private static final String EVENT_PROP_WIDTH = "width";
     private static final String EVENT_PROP_HEIGHT = "height";
     private static final String EVENT_PROP_ORIENTATION = "orientation";
@@ -137,7 +139,7 @@ class VideoEventEmitter {
     }
 
     void load(double duration, double currentPosition, int videoWidth, int videoHeight,
-              WritableArray audioTracks, WritableArray textTracks, WritableArray videoTracks) {
+              WritableArray audioTracks, WritableArray textTracks, WritableArray videoTracks, String trackId) {
         WritableMap event = Arguments.createMap();
         event.putDouble(EVENT_PROP_DURATION, duration / 1000D);
         event.putDouble(EVENT_PROP_CURRENT_TIME, currentPosition / 1000D);
@@ -151,7 +153,7 @@ class VideoEventEmitter {
             naturalSize.putString(EVENT_PROP_ORIENTATION, "portrait");
         }
         event.putMap(EVENT_PROP_NATURAL_SIZE, naturalSize);
-
+        event.putString(EVENT_PROP_TRACK_ID, trackId);
         event.putArray(EVENT_PROP_VIDEO_TRACKS, videoTracks);
         event.putArray(EVENT_PROP_AUDIO_TRACKS, audioTracks);
         event.putArray(EVENT_PROP_TEXT_TRACKS, textTracks);
@@ -168,17 +170,21 @@ class VideoEventEmitter {
         receiveEvent(EVENT_LOAD, event);
     }
 
-    void progressChanged(double currentPosition, double bufferedDuration, double seekableDuration) {
+    void progressChanged(double currentPosition, double bufferedDuration, double seekableDuration, double currentPlaybackTime) {
         WritableMap event = Arguments.createMap();
         event.putDouble(EVENT_PROP_CURRENT_TIME, currentPosition / 1000D);
         event.putDouble(EVENT_PROP_PLAYABLE_DURATION, bufferedDuration / 1000D);
         event.putDouble(EVENT_PROP_SEEKABLE_DURATION, seekableDuration / 1000D);
+        event.putDouble(EVENT_PROP_CURRENT_PLAYBACK_TIME, currentPlaybackTime);
         receiveEvent(EVENT_PROGRESS, event);
     }
 
-    void bandwidthReport(double bitRateEstimate) {
+    void bandwidthReport(double bitRateEstimate, int height, int width, String id) {
         WritableMap event = Arguments.createMap();
         event.putDouble(EVENT_PROP_BITRATE, bitRateEstimate);
+        event.putInt(EVENT_PROP_WIDTH, width);
+        event.putInt(EVENT_PROP_HEIGHT, height);
+        event.putString(EVENT_PROP_TRACK_ID, id);
         receiveEvent(EVENT_BANDWIDTH, event);
     }    
 
@@ -226,7 +232,7 @@ class VideoEventEmitter {
     void error(String errorString, Exception exception) {
         WritableMap error = Arguments.createMap();
         error.putString(EVENT_PROP_ERROR_STRING, errorString);
-        error.putString(EVENT_PROP_ERROR_EXCEPTION, exception.getMessage());
+        error.putString(EVENT_PROP_ERROR_EXCEPTION, exception.toString());
         WritableMap event = Arguments.createMap();
         event.putMap(EVENT_PROP_ERROR, error);
         receiveEvent(EVENT_ERROR, event);

ios/Video/RCTVideo.m

@@ -64,6 +64,7 @@ static int const RCTVideoUnset = -1;
   NSDictionary * _selectedAudioTrack;
   BOOL _playbackStalled;
   BOOL _playInBackground;
+  float _preferredForwardBufferDuration;
   BOOL _playWhenInactive;
   BOOL _pictureInPicture;
   NSString * _ignoreSilentSwitch;
@@ -105,6 +106,7 @@ static int const RCTVideoUnset = -1;
     _controls = NO;
     _playerBufferEmpty = YES;
     _playInBackground = false;
+    _preferredForwardBufferDuration = 0.0f;
     _allowsExternalPlayback = YES;
     _playWhenInactive = false;
     _pictureInPicture = false;
@@ -265,6 +267,7 @@ static int const RCTVideoUnset = -1;
   }
   
   CMTime currentTime = _player.currentTime;
+  NSDate *currentPlaybackTime = _player.currentItem.currentDate;
   const Float64 duration = CMTimeGetSeconds(playerDuration);
   const Float64 currentTimeSecs = CMTimeGetSeconds(currentTime);
   
@@ -276,6 +279,7 @@ static int const RCTVideoUnset = -1;
                            @"playableDuration": [self calculatePlayableDuration],
                            @"atValue": [NSNumber numberWithLongLong:currentTime.value],
                            @"atTimescale": [NSNumber numberWithInt:currentTime.timescale],
+                           @"currentPlaybackTime": [NSNumber numberWithLongLong:[@(floor([currentPlaybackTime timeIntervalSince1970] * 1000)) longLongValue]],
                            @"target": self.reactTag,
                            @"seekableDuration": [self calculateSeekableDuration],
                            });
@@ -354,6 +358,7 @@ static int const RCTVideoUnset = -1;
     // perform on next run loop, otherwise other passed react-props may not be set
     [self playerItemForSource:source withCallback:^(AVPlayerItem * playerItem) {
       _playerItem = playerItem;
+      [self setPreferredForwardBufferDuration:_preferredForwardBufferDuration];
       [self addPlayerItemObservers];
       [self setFilter:_filterName];
       [self setMaxBitRate:_maxBitRate];
@@ -995,6 +1000,12 @@ static int const RCTVideoUnset = -1;
   _playerItem.preferredPeakBitRate = maxBitRate;
 }
 
+- (void)setPreferredForwardBufferDuration:(float) preferredForwardBufferDuration
+{
+  _preferredForwardBufferDuration = preferredForwardBufferDuration;
+  _playerItem.preferredForwardBufferDuration = preferredForwardBufferDuration;
+}
+
 - (void)setAutomaticallyWaitsToMinimizeStalling:(BOOL)waits
 {
 	_automaticallyWaitsToMinimizeStalling = waits;

ios/Video/RCTVideoManager.m

@@ -32,6 +32,7 @@ RCT_EXPORT_VIEW_PROPERTY(muted, BOOL);
 RCT_EXPORT_VIEW_PROPERTY(controls, BOOL);
 RCT_EXPORT_VIEW_PROPERTY(volume, float);
 RCT_EXPORT_VIEW_PROPERTY(playInBackground, BOOL);
+RCT_EXPORT_VIEW_PROPERTY(preferredForwardBufferDuration, float);
 RCT_EXPORT_VIEW_PROPERTY(playWhenInactive, BOOL);
 RCT_EXPORT_VIEW_PROPERTY(pictureInPicture, BOOL);
 RCT_EXPORT_VIEW_PROPERTY(ignoreSilentSwitch, NSString);