Exoplayer v2.11

This guide is for integrating MediaMelon SDK with Exoplayer v2.11.0 - v2.11.8

This guide uses Exoplayer 2.11.4 as a reference. Please replace with the correct version of v2.11 player

Prerequisites

1. ExoPlayer-r2.11.4 https://github.com/google/ExoPlayer

2. MediaMelon SmartSight SDK smartstreaming.aar

Step 1: Set up the build environment

Note $EXOPROJECT = {ExoPlayer-r2.11.4}

The SDK files are added to the build environment and the required network permissions are enabled.

1. Copy smartstreaming-release.aar provided with the release package to the exoplayer project, Example $EXOPROJECT/demos/main/smartstreaming-release.aar

2. Add the following library to $EXOPROJECT/demos/main/build.gradle :-

dependencies {
  .
  .
  .
   //<!-- <MMSmartStreaming 1b> -->
    api files ('smartstreaming-release.aar')
  //<!-- </MMSmartStreaming 1b> -->
  
}

Add network permissions to $EXOPROJECT/demos/main/src/main/AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

<!-- <MMSmartStreaming 1c> -->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<!-- </MMSmartStreaming 1c> -->

Step 2: Register SDK

The player application must register the SDK and provide player information once when the application launches. Please note that values provided in this integration step persist across video sessions. This is typically done when the player itself is initialized.

You can check SDK registration status with getRegistrationStatus(). If the registration is not complete, use the registerMMSmartStreaming() to complete the registration.

Step 2a: Import packages

$EXOPROJECT/demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java

// <MMSmartStreaming 2a>
import com.google.android.exoplayer2.ExoPlayerLibraryInfo;
import com.mediamelon.smartstreaming.MMQBRMode;
import com.mediamelon.smartstreaming.MMSmartStreaming;
import com.mediamelon.smartstreaming.MMSmartStreamingExo2;
import com.mediamelon.smartstreaming.MMSmartStreamingInitializationStatus;
import com.mediamelon.smartstreaming.MMSmartStreamingObserver;
import java.util.ArrayList;
import android.util.Log;
// </MMSmartStreaming 2a>

Step 2b: Registration

Perform registration tasks by modifying the onCreate() method in $EXOPROJECT/demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java

The enableLogTrace() feature should be enabled for testing during the integration process. Set this to False before releasing the player to production

public void onCreate(Bundle savedInstanceState) {
  ...
  }else {
    trackSelectorParameters = new DefaultTrackSelector.ParametersBuilder().build();
    clearStartPosition();
  }

  //<MMSmartStreaming 2b>
  Log.d("SmartStreamingIntgr", MMSmartStreamingExo2.getVersion());
  MMSmartStreamingExo2.enableLogTrace(true); //set to "false" before releasing player to production
  if (MMSmartStreamingExo2.getRegistrationStatus() == false)

{ //Check if it is the first time Registration process is done

    MMSmartStreamingExo2.registerMMSmartStreaming($PLAYERNAME, $CUSTOMERID, $SUBSCRIBERID, $DOMAINNAME, $SUBSCRIBERTYPE, $SUBSCRIBERTAG);
    MMSmartStreamingExo2.reportPlayerInfo("CustomPlayerName", ExoPlayerLibraryInfo.VERSION, "1.0");
    MMSmartStreamingExo2.getInstance().setContext(getApplicationContext()); //Please make sure to provide the application's context here, and not the activity's context
  }
  // </MMSmartStreaming 2b> 
}

Step 3: Initialize Session & Report User Intent to Playback

The SDK must be initialized at the start of each video session. Initialization includes setting the application context, initializing the playback session, and indicating the intent for playback with the SDK.

Provide application context to SDK by modifying the createTopLevelMediaSource() method in $EXOPROJECT/demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java

@Nullable
  private MediaSource createTopLevelMediaSource(Intent intent) {
    String action = intent.getAction();
    boolean actionIsListView = ACTION_VIEW_LIST.equals(action);
    if (!actionIsListView && !ACTION_VIEW.equals(action)) {
      showToast(getString(R.string.unexpected_intent_action, action));
      finish();
      return null;
    }

    Sample intentAsSample = Sample.createFromIntent(intent);
    UriSample[] samples =
        intentAsSample instanceof Sample.PlaylistSample
            ? ((Sample.PlaylistSample) intentAsSample).children
            : new UriSample[] {(UriSample) intentAsSample};

    boolean seenAdsTagUri = false;
    for (UriSample sample : samples) {
      seenAdsTagUri |= sample.adTagUri != null;
      if (!Util.checkCleartextTrafficPermitted(sample.uri)) {
        showToast(R.string.error_cleartext_not_permitted);
        return null;
      }
      if (Util.maybeRequestReadExternalStoragePermission(/* activity= */ this, sample.uri)) {
        // The player will be reinitialized if the permission is granted.
        return null;
      }
    }

    MediaSource[] mediaSources = new MediaSource[samples.length];
    for (int i = 0; i < samples.length; i++) {
      mediaSources[i] = createLeafMediaSource(samples[i]);
      Sample.SubtitleInfo subtitleInfo = samples[i].subtitleInfo;
      if (subtitleInfo != null) {
        if (Util.maybeRequestReadExternalStoragePermission(
            /* activity= */ this, subtitleInfo.uri)) {
          // The player will be reinitialized if the permission is granted.
          return null;
        }
        Format subtitleFormat =
            Format.createTextSampleFormat(
                /* id= */ null,
                subtitleInfo.mimeType,
                C.SELECTION_FLAG_DEFAULT,
                subtitleInfo.language);
        MediaSource subtitleMediaSource =
            new SingleSampleMediaSource.Factory(dataSourceFactory)
                .createMediaSource(subtitleInfo.uri, subtitleFormat, C.TIME_UNSET);
        mediaSources[i] = new MergingMediaSource(mediaSources[i], subtitleMediaSource);
      }
    }
    MediaSource mediaSource =
        mediaSources.length == 1 ? mediaSources[0] : new ConcatenatingMediaSource(mediaSources);
        
    // //<MMSmartStreaming 3> Integration start ------
    if(mediaSources.length > 0 ){
      String mediaUrl = samples[0].uri.toString();
      MMSmartStreamingExo2.getInstance().initializeSession(player, $QBRREQUESTEDMODE, mediaUrl, $ASSETMETAURL, "ASSETID", "ASSETNAME", "VIDEOID", null);
    }
    // //</MMSmartStreaming 3> Integration end -------

    if (seenAdsTagUri) {
      Uri adTagUri = samples[0].adTagUri;
      if (actionIsListView) {
        showToast(R.string.unsupported_ads_in_concatenation);
      } else {
        if (!adTagUri.equals(loadedAdTagUri)) {
          releaseAdsLoader();
          loadedAdTagUri = adTagUri;
        }
        MediaSource adsMediaSource = createAdsMediaSource(mediaSource, adTagUri);
        if (adsMediaSource != null) {
          mediaSource = adsMediaSource;
        } else {
          showToast(R.string.ima_not_loaded);
        }
      }
    } else {
      releaseAdsLoader();
    }

    return mediaSource;
  }

Please note line number 55-60 is where MediaMelon code is added

Step 4: Report User Intent to Playback

When the user presses the play button for the first time to start the playback, or in autoplay mode when a player is fed with a content URL to load the session, reportUserInitiatedPlayback() should be called. In the demo application, autoplay is “on”, so let's call this API just before player.prepare()

In $EXOPROJECT/demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java

// Internal methods

  private void initializePlayer() {
    if (player == null) {
      Intent intent = getIntent();
      // <MMSmartStreaming 4> Integration start Comment below lines 
      //mediaSource = createTopLevelMediaSource(intent);
      //if (mediaSource == null) {
      //  return;
      //}
      // </MMSmartStreaming 4> Integration end
      
      TrackSelection.Factory trackSelectionFactory;
      String abrAlgorithm = intent.getStringExtra(ABR_ALGORITHM_EXTRA);
      if (abrAlgorithm == null || ABR_ALGORITHM_DEFAULT.equals(abrAlgorithm)) {
        trackSelectionFactory = new AdaptiveTrackSelection.Factory();
      } else if (ABR_ALGORITHM_RANDOM.equals(abrAlgorithm)) {
        trackSelectionFactory = new RandomTrackSelection.Factory();
      } else {
        showToast(R.string.error_unrecognized_abr_algorithm);
        finish();
        return;
      }

      boolean preferExtensionDecoders =
          intent.getBooleanExtra(PREFER_EXTENSION_DECODERS_EXTRA, false);
      RenderersFactory renderersFactory =
          ((DemoApplication) getApplication()).buildRenderersFactory(preferExtensionDecoders);

      trackSelector = new DefaultTrackSelector(/* context= */ this, trackSelectionFactory);
      trackSelector.setParameters(trackSelectorParameters);
      lastSeenTrackGroupArray = null;

      player =
          new SimpleExoPlayer.Builder(/* context= */ this, renderersFactory)
              .setTrackSelector(trackSelector)
              .build();
      player.addListener(new PlayerEventListener());
      player.setAudioAttributes(AudioAttributes.DEFAULT, /* handleAudioFocus= */ true);
      player.setPlayWhenReady(startAutoPlay);
      player.addAnalyticsListener(new EventLogger(trackSelector));
      playerView.setPlayer(player);
      playerView.setPlaybackPreparer(this);
      debugViewHelper = new DebugTextViewHelper(player, debugTextView);
      debugViewHelper.start();
      if (adsLoader != null) {
        adsLoader.setPlayer(player);
      }
      // <MMSmartStreaming 4> Integration start Add below lines
      mediaSource = createTopLevelMediaSource(intent);
      if (mediaSource == null) {
        return;
      }
      // </MMSmartStreaming 4> Integration end
    }
    boolean haveStartPosition = startWindow != C.INDEX_UNSET;
    if (haveStartPosition) {
      player.seekTo(startWindow, startPosition);
    }
    // <MMSmartStreaming 4> Integration Start (User playback Loaded)
    MMSmartStreamingExo2.getInstance().reportUserInitiatedPlayback();
    // </MMSmartStreaming 4> Integration end
    player.prepare(mediaSource, !haveStartPosition, false);
    updateButtonVisibility();
  }

Step 5: Report ended state when the player instance is released

In $EXOPROJECT/demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java

private void releasePlayer() {
    if (player != null) {
      updateTrackSelectorParameters();
      updateStartPosition();
      debugViewHelper.stop();
      debugViewHelper = null;
      player.release();
      player = null;
      mediaSource = null;
      trackSelector = null;
       // <MMSmartStreaming 5> Start
	  MMSmartStreamingExo2.getInstance().reportPlayerState(false, Player.STATE_ENDED);
	  // </MMSmartStreaming 5> End
    }
    if (adsLoader != null) {
      adsLoader.setPlayer(null);
    }
  }