updated to ExoPlayer 2.4.0, added support for playback rate change (#605)

android-exoplayer/build.gradle

@@ -12,8 +12,8 @@ android {
 
 dependencies {
     provided 'com.facebook.react:react-native:+'
-    compile 'com.google.android.exoplayer:exoplayer:r2.2.0'
+    compile 'com.google.android.exoplayer:exoplayer:r2.4.0'
-    compile('com.google.android.exoplayer:extension-okhttp:r2.2.0') {
+    compile('com.google.android.exoplayer:extension-okhttp:r2.4.0') {
         exclude group: 'com.squareup.okhttp3', module: 'okhttp'
     }
     compile 'com.squareup.okhttp3:okhttp:3.4.2'

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

@@ -15,6 +15,7 @@ import android.widget.FrameLayout;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
+import com.google.android.exoplayer2.PlaybackParameters;
 import com.google.android.exoplayer2.SimpleExoPlayer;
 import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.metadata.Metadata;
@@ -225,6 +226,11 @@ public final class ExoPlayerView extends FrameLayout {
             updateForCurrentTrackSelections();
         }
 
+        @Override
+        public void onPlaybackParametersChanged(PlaybackParameters params) {
+            // Do nothing
+        }
+
         @Override
         public void onMetadata(Metadata metadata) {
             Log.d("onMetadata", "onMetadata");
@@ -232,4 +238,3 @@ public final class ExoPlayerView extends FrameLayout {
     }
 
 }
-

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

@@ -21,6 +21,7 @@ import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.ExoPlayerFactory;
 import com.google.android.exoplayer2.Format;
+import com.google.android.exoplayer2.PlaybackParameters;
 import com.google.android.exoplayer2.SimpleExoPlayer;
 import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.extractor.DefaultExtractorsFactory;
@@ -38,7 +39,7 @@ import com.google.android.exoplayer2.source.dash.DefaultDashChunkSource;
 import com.google.android.exoplayer2.source.hls.HlsMediaSource;
 import com.google.android.exoplayer2.source.smoothstreaming.DefaultSsChunkSource;
 import com.google.android.exoplayer2.source.smoothstreaming.SsMediaSource;
-import com.google.android.exoplayer2.trackselection.AdaptiveVideoTrackSelection;
+import com.google.android.exoplayer2.trackselection.AdaptiveTrackSelection;
 import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
 import com.google.android.exoplayer2.trackselection.MappingTrackSelector;
 import com.google.android.exoplayer2.trackselection.TrackSelection;
@@ -86,6 +87,7 @@ class ReactExoplayerView extends FrameLayout implements
     private boolean loadVideoStarted;
     private boolean isPaused = true;
     private boolean isBuffering;
+    private float rate = 1f;
 
     // Props from React
     private Uri srcUri;
@@ -200,7 +202,7 @@ class ReactExoplayerView extends FrameLayout implements
 
     private void initializePlayer() {
         if (player == null) {
-            TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveVideoTrackSelection.Factory(BANDWIDTH_METER);
+            TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveTrackSelection.Factory(BANDWIDTH_METER);
             trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);
             player = ExoPlayerFactory.newSimpleInstance(getContext(), trackSelector, new DefaultLoadControl());
             player.addListener(this);
@@ -209,6 +211,9 @@ class ReactExoplayerView extends FrameLayout implements
             audioBecomingNoisyReceiver.setListener(this);
             setPlayWhenReady(!isPaused);
             playerNeedsSource = true;
+
+            PlaybackParameters params = new PlaybackParameters(rate, 1f);
+            player.setPlaybackParameters(params);
         }
         if (playerNeedsSource && srcUri != null) {
             MediaSource mediaSource = buildMediaSource(srcUri, extension);
@@ -469,6 +474,11 @@ class ReactExoplayerView extends FrameLayout implements
         // Do Nothing.
     }
 
+    @Override
+    public void onPlaybackParametersChanged(PlaybackParameters params) {
+        eventEmitter.playbackRateChange(params.speed);
+    }
+
     @Override
     public void onPlayerError(ExoPlaybackException e) {
         String errorString = null;
@@ -605,9 +615,13 @@ class ReactExoplayerView extends FrameLayout implements
         }
     }
 
-    public void setRateModifier(float rate) {
+    public void setRateModifier(float newRate) {
-        // TODO: waiting on ExoPlayer implementation
+      rate = newRate;
-        // https://github.com/google/ExoPlayer/issues/26
+
+      if (player != null) {
+          PlaybackParameters params = new PlaybackParameters(rate, 1f);
+          player.setPlaybackParameters(params);
+      }
     }
 
 

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

@@ -39,6 +39,7 @@ class VideoEventEmitter {
     private static final String EVENT_TIMED_METADATA = "onTimedMetadata";
     private static final String EVENT_AUDIO_BECOMING_NOISY = "onAudioBecomingNoisy";
     private static final String EVENT_AUDIO_FOCUS_CHANGE = "onAudioFocusChanged";
+    private static final String EVENT_PLAYBACK_RATE_CHANGE = "onPlaybackRateChange";
 
     static final String[] Events = {
             EVENT_LOAD_START,
@@ -55,6 +56,7 @@ class VideoEventEmitter {
             EVENT_TIMED_METADATA,
             EVENT_AUDIO_BECOMING_NOISY,
             EVENT_AUDIO_FOCUS_CHANGE,
+            EVENT_PLAYBACK_RATE_CHANGE,
     };
 
     @Retention(RetentionPolicy.SOURCE)
@@ -73,6 +75,7 @@ class VideoEventEmitter {
             EVENT_TIMED_METADATA,
             EVENT_AUDIO_BECOMING_NOISY,
             EVENT_AUDIO_FOCUS_CHANGE,
+            EVENT_PLAYBACK_RATE_CHANGE,
     })
     @interface VideoEvents {
     }
@@ -94,6 +97,7 @@ class VideoEventEmitter {
     private static final String EVENT_PROP_ORIENTATION = "orientation";
     private static final String EVENT_PROP_HAS_AUDIO_FOCUS = "hasAudioFocus";
     private static final String EVENT_PROP_IS_BUFFERING = "isBuffering";
+    private static final String EVENT_PROP_PLAYBACK_RATE = "playbackRate";
 
     private static final String EVENT_PROP_ERROR = "error";
     private static final String EVENT_PROP_ERROR_STRING = "errorString";
@@ -178,6 +182,12 @@ class VideoEventEmitter {
         receiveEvent(EVENT_ERROR, event);
     }
 
+    void playbackRateChange(float rate) {
+        WritableMap map = Arguments.createMap();
+        map.putDouble(EVENT_PROP_PLAYBACK_RATE, (double)rate);
+        receiveEvent(EVENT_PLAYBACK_RATE_CHANGE, map);
+    }
+
     void timedMetadata(Metadata metadata) {
         WritableArray metadataArray = Arguments.createArray();