Subtitle FCC Fonts¶

To fulfill the FCC requirements for closed captions, you need to allow the user to select from different fonts, including “casual”, “cursive”, “small capitals”, and a “serif monospace” font. These fonts are not available on all Android devices. The PRESTOplay SDK for Android bundles a module that offers a set of fonts to fill the gap. You can add the module to your dependencies:

dependencies{
    ...
    compile 'com.castlabs.player:subtitles-fonts:3.0.5'
    ...
}

This will bundle the missing font types with your Application. You can also add different fonts yourself and use the SubtitleFonts class to configure the fonts.

Subtitle Styles¶

The PRESTOplay SDK for Android contains an example Application subtitle_styles that demonstrates who you can build a settings view to configure subtitles, store that configuration in the shared preferences of the Application and then create a SubtitlesStyle object from these preferences and use it during playback.

Subtitle Preview¶

One of the FCC requirements is that you provide a preview when different caption styles are applied. The PRESTOplay SDK for Android contains a View component, SubtitlesPreviewView, that can be used to render a preview of the subtitles with a given style.

Subtitles View¶

The PRESTOplay SDK for Android uses the SubtitlesView in order to display rendered subtitles.

If you’re using a PlayerView, a SubtitlesView will automatically be created and added to such PlayerView.

If you are not using a PlayerView. You can create a SubtitlesView programmatically just by using its constructor, or by declaring one in a layout xml file for the system to inflate. If you use the latest approach, you must pass your layout View to PlayerController.setComponentView(int, android.view.View) with the corresponding id, defined in SUBTITLES_VIEW_ID, or R.id.presto_castlabs_subtitles_view so the SubtitlesPlugin can properly find the SubtitlesView.

You can get a reference to this underlying View in two different ways.

You can use get it from the PlayerController, with its PlayerController.getComponentView(int) method, again making use of the SUBTITLES_VIEW_ID.

If you’re using a PlayerView there’s also the option of using the SubtitlesViewComponent, and then getting the view from it through the getView() method.

Handling Connectivity Loss for Live Playback¶

In case connectivity loss detection is enabled and you are playing live content, you might need to manually re-start playback if the connection loss was too long and the playback head moved behind the current live Window. In that case the player will raise a TYPE_BEHIND_LIVE_WINDOW error, which can be used as a marker for these situations. A possible re-start might look like this:

@Override
public void onError(@NonNull CastlabsPlayerException error) {
    // restart playback for live streams that fell behind the live
    // window.
    if (error.getType() == CastlabsPlayerException.TYPE_BEHIND_LIVE_WINDOW) {
        // Save the current playback state to a bundle
        Bundle store = new Bundle();
        controller.saveState(store);

        // release the player and re-open it with the bundle
        controller.release();
        try {
            controller.open(store);
        } catch (Exception e) {
            Log.e(TAG, "Error re-opening stream: " + e, e);
        }
    }
}

Customize Connectivity Check¶

The PRESTOplay SDK for Android uses its default DefaultConnectivityCheck to check if the device is currently connected to the internet. The default implementation does used the Android ConnectivityManager to check basic connectivity and then ensures that an internet connection is available by doing a DNS host name lookup to google.com. You can customize the checker implementation using the global PlayerSDK#CONNECTIVITY_CHECKER setting. You can either set this to a custom implementation of the ConnectivityCheck interface, or use a custom instance of the DefaultConnectivityCheck with a customized host lookup name.

Please note that the default implementation does not actually open a connection to google.com (or any other lookup host) but does connect to the DNS service of the device to perform a host lookup for the given name.

Key info¶

You can get Key related info through the KeyStore interface. You can get the currently used KeyStore instance with the static PlayerSDK#DEFAULT_KEY_STORE field.

Providing the offlineId of your content, you can get an instance of DrmKeyStorage with KeyStore ‘s get method.

The DrmKeyStorage object provides DRM-related for a particular key. You can use this for instance to get the expiration date.

Custom ad UI¶

The PRESTOplay SDK for Android allows you to build your own ad UI. For this, you’ll need to hook up to the relevant ad events, and hide the default ad provider UI. Additionally, an AdApi is provided so that ad-related operations can be invoked. Please note for the IMA Ad Provider the SDK requires the following Tag in the VAST response for Custom UI to be useable. Once this is available you may check whether the Default AdProvider UI has been disabled using currentAd.isUiDisabled.

<Extension type="uiSettings">
    <UiHideable>1</UiHideable>
</Extension>

This is how a basic implementation could look:

protected void onCreate() {
    // ...
    customAdUi = new CustomAdUi(playerView.getAdInterface().getAdApi());
    ImaAdRequest adReq = new ImaAdRequest.Builder().tagUrl("<url>")
    // This is a NO-OP in case VAST responses do not have the hideable tag set
                                                            .disableDefaultAdUi(true).get()
                                                            .toAdRequest());
}

protected void onStart() {
    // ...
    playerView.getAdInterface().addAdListener(customAdUi);
}

protected void onStop() {
    // ...
    playerView.getAdInterface().removeAdListener(customAdUi)
}

The CustomAdUi class would implement the AdInterface.Listener interface:

class CustomAdUi implements AdInterface.Listener {
    private AdApi api;
    private Button skipButton;

    CustomAdUi(AdApi adApi) {
        this.api = adApi;
        // Create Views
        // ...
        skipButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                adApi.skipAd();
            }
        });
    }

    @Override
    public void onAdStarted(@NonNull Ad ad) {
        // Show UI
    }

    @Override
    public void onAdCompleted() {
        // Hide UI
    }

    @Override
    public void onAdPlaybackPositionChanged(long playbackPositionMs) {
        // Update UI
    }
}

Manual ad Scheduling¶

The PRESTOplay SDK for Android, when using the IMA Plugin, allows for manual ad scheduling. This enables the user to perform ad requests without the need to inform them on playback start, but rather after playback has already started.

In order to enable this capability, it must be first enabled in the PlayerConfig or in the Bundle used to start playback.

The AdSchedule configuration object should be built using the manual value for the scheduleType. Alternatively, you can use the AD_SCHEDULE_MANUAL constant.

// Example with Bundle
Bundle bundle = new Bundle();
bundle.putString(SdkConsts.INTENT_URL, "http://example.com/manifest.mpd");
bundle.putParcelable(SdkConsts.INTENT_AD_SCHEDULE, SdkConsts.AD_SCHEDULE_MANUAL);
// ...
playerController.open(bundle);

// Example with PlayerConfig
PlayerConfig playerConfig = new PlayerConfig.Builder("http://example.com/manifest.mpd")
    .adSchedule(SdkConsts.AD_SCHEDULE_MANUAL)
    // ...
    .get();
playerController.open(playerConfig);

In order to perform ad requests, you need to get a reference to the AdInterface.

playerController.getAdInterface().scheduleAd(new ImaAdRequest(adTag).toAdRequest());

By default, ads will be scheduled to be played 1.5 seconds after the response has been received. This is in order to provide a smooth transition into the ad and avoid running in a buffer underrun.

The can be configured on a per-request basis as follows:

playerController.getAdInterface().scheduleAd(new ImaAdRequest.Builder()
                                .tagUrl(adTag)
                                .scheduleDelayMs(4000)
                            .get()
                            .toAdRequest());

Note that there are some limitations when it comes to manual ad scheduling:

• No ads can be scheduled while already playing an ad.

• Only VAST ads may be requested. If a VMAP is scheduled, it will be ignored.

• Already scheduled ads, for instance, with a VMAP AdRequest informed on playback start, will be dropped if an another request is performed.

Scoped Storage¶

With the introduction of Android 10 (API 29), the concept of “scoped access” has been introduced by Google (link).

On Android 10 and higher, all apps by default get access to this mode without any additional permissions. Scoped storage allows them to access the Media of the device through the media store API, in addition to an app-specific directories.

There’s is the possibility to keep the old permission behaviour on API 29, if the application sets the requestLegacyExternalStorage flag to true in the manifest. This flag only serves for API 29, and will be ignored if the targetSdk is set to API 30 or higher.

Your app is affected by change if your downloads are not in one of the directories returned by the following methods:

• getFilesDir

• getExternalFilesDir

• getExternalFilesDirs

If you’re using any other path, and you update to targetSdk 30, access to those downloads will be lost.

You can take care of migrating the existing Downloads to a scoped storage path on your own, and updating the reference for those in our SDK. You can do this through the updateDownloadPath method. Note that this method will not migrate the files themselves.

We are also currently working on bringing to the Downloader additional helper methods to ease migration of data. Those will be published on a later release.

Even if you choose not to do the Downloads migration now, it is highly recommended to start using one of the aforementioned methods to retrieve a scoped storage path in order to save the new Downloads into.

For this reason the SDK will, by default, refuse to download anything into a path which is not part of the scoped storage locations. This behaviour can be disabled by setting allowNonScopedStorageDownload to true if needed, but we encourage you not to do so.

Session detaching¶

By default, AnalyticSession are started and stopped automatically by the PlayerController. Sessions start whenever playback starts, and stop whenever content ends or the PlayerController is disposed.

If you want to avoid this, and persist a session beyond the PlayerController lifecycle, you can do the following.

In your teardown code, get the reference to the currently used AnalyticsSession and detach it from the PlayerController before releasing it.

// Keep analytics session, analyticsSession is a class variable
analyticsSession = playerView.getPlayerController().getAnalyticsSession();
if (analyticsSession != null) {
    // Unbind this AnalyticsSession from the PlayerController
    analyticsSession.detachFromController();
}
// Release player
playerView.getPlayerController().release();

While in this state. The AnalyticsSession will be still alive and likely, depending on the analytics provider, sending keep-alive traces.

When you want to re-attach the AnalyticsSession to the PlayerController instance, which can be the same or a completely new instance, you just need to set it before its open() method.

// Restore ongoing AnalyticsSession
playerView.getPlayerController().setAnalyticsSession(analyticsSession);
try {
    playerView.getPlayerController().open(bundle);
} catch (Exception e) {
    Log.e(TAG, "Error while opening player: " + e.getMessage(), e);
}

If a non-null AnalyticsSession is set, it will be used instead of creating a new session.

The detachFromController method returns a boolean indicating if the AnalyticsSession could successfully unbind itself from the PlayerController. Currently only the Youbora and Conviva implementations support session detaching.

You should never use the same AnalyticsSession concurrently in more than one instance of PlayerController. Make sure to always call detachFromController() before setting the AnalyticsSession to a new PlayerController.

Youbora¶

The PRESTOplay SDK for Android bundles an integration for Youbora, the Analytics Service from Nice People At Work.

If you are coming from a PRESTOplay SDK for Android version 4.1.9 or earlier and want to update your integration refer to the Update from PRESTOplay SDK for Android version 4.1.9 or earlier section.

The plugin and all its dependencies are part of the bundle repository and can be added as a dependency to your application build:

dependencies {
    ...
    compile 'com.castlabs.player:youbora-plugin:1.0.0'
    ...
}

You should also add NPAW’s public Maven repository to your gradle file in order to get their binaries:

repositories {
    ...
    maven { url 'http://dl.bintray.com/npaw/youbora' }
    ...
}

This will add the YouboraPlugin to your project.

You can register the plugin with the SDK.

By default, the Youbora plugin will report only fatal errors to the backend. If you wish to also report the SDK warnings as Youbora non-fatal errors, you have to enable it before registering the plugin:

YouboraPlugin youboraPlugin = new YouboraPlugin(accountCode);
// Optional: Report SDK warnings as Youbora non-fatal errors (default: false)
// youboraPlugin.reportWarnings(true);
PlayerSDK.register(youboraPlugin);

Note that you have to pass a valid Youbora accountCode to the constructor in order to initialize the plugin and get access to the backend service.

In addition, you can use the Youbora Options object to customize the plugin configuration.

You should create the Options object and fill it with the desired config. This object will be later passed to the createMetadata method.

Please refer to more details about possible options to the Youbora documentation.

By default, the plugin overrides the following global options upon initialization:

• accountCode is always set to the systemId you pass in the plugin constructor

• username is set to analyticsMetadata.viewerId

• contentIsLive is set to analyticsMetadata.live

Also, the following fields may be filled by the plugin, if they are not informed:

• content_id inside contentMetadata will be filled with analyticsMetadata.assetId

• contentDuration will be filled with analyticsMetadata.durationSeconds

• contentResource will be filled with PlayerController’s getPath return value

The Youbora documentations lists more options you can pass in the global configuration.

Passing Youbora configuration to the player:

// Create Youbora Options object
Options youboraOptions = new Options();

// Set any desired fields
youboraOptions.setContentTitle("Movie");

// Extra properties
Bundle properties = new Bundle();
properties.putString("language", "English");
properties.putString("year", "2018");
properties.putString("price", "Free");

youboraOptions.setContentMetadata(properties);

// Create AnalyticsMetadata
AnalyticsMetaData analyticsMetaData = YouboraPlugin.createMetadata(
        false,              // Live or not, will set analyticsMetadata.live
        prefs.getAssetId(), // Unique asset identifier, will set analyticsMetadata.assetId
        youboraOptions);    // Youbora Options object

// Set a user ID
analyticsMetaData.viewerId = prefs.getUserName();

// Set the analytics meta-data
intent.putExtra(SdkConsts.INTENT_ANALYTICS_DATA, analyticsMetaData);

In this example, we create the meta-data and then pass it to the Intent Bundle that is used to start playback.

With this meta-data configuration in place and passed to the PlayerController either through the Intent Bundle or explicitly trough setAnalyticsMetaData, the session will be automatically started and stopped.

private static final String YOUBORA_CUSTOMER_KEY = "youboracustomerkey";

@Override
public void onCreate() {
    super.onCreate();

    // ...

    Options options = new Options();
    options.setAccountCode(YOUBORA_CUSTOMER_KEY);
    // Set other required options

    // Plugin instance to use for application tracking
    this.youboraSDK = new Plugin(options, this);

    YouboraPlugin youboraPlugin = new YouboraPlugin(YOUBORA_CUSTOMER_KEY, this.youboraSDK);

    // ...

    PlayerSDK.register(youboraPlugin);
}

// (Optional) Set the Youbora plugin to use before opening the PlayerController
// This is not needed if the Youbora's Plugin instance is the same as set on
// the app's onCreate
YouboraAnalyticsSession component = playerController.getComponent(YouboraAnalyticsSession.class);
component.setPlugin(youboraPlugin);

playerController.open(...);

repositories {
    ...
    maven { url 'http://dl.bintray.com/npaw/youbora' }
    ...
}

Nielsen¶

The PRESTOplay SDK for Android is integrated with Nielsen service in the form of a plugin. First, the plugin needs to be added as a dependency in the application gradle:

dependencies {
    ...
    implementation 'com.castlabs.player:nielsen-plugin:1.0.0'
    ...
}

Then the plugin is registered and enabled by the application:

PlayerSDK.register(new NielsenPlugin(appId, appName, appVersion, sfCode));
...
NielsenPlugin nielsen = PlayerSDK.getPlugin(NielsenPlugin.class);
if (nielsen != null) {
    nielsen.setEnabled(true);
}

Or the other constructor could be used to make a new instance of NielsenPlugin:

JSONObject config = new JSONObject();
try {
    config.put(NielsenPlugin.CONFIG_KEY_APPID, appId);
    config.put(NielsenPlugin.CONFIG_KEY_APPNAME, appName);
    config.put(NielsenPlugin.CONFIG_KEY_APPVERSION, appVersion);
    config.put(NielsenPlugin.CONFIG_KEY_SFCODE, sfCode);
} catch (JSONException e) {
    e.printStackTrace();
}

NielsenPlugin nielsenPlugin = new NielsenPlugin(config);

The Nielsen plugin benefits from the PRESTOplay SDK for Android integrated with IMA service and provides two use cases out of the box: content with and without IMA advertisements. See an example above on how to use the PRESTOplay SDK for Android plugin integrated with IMA.

The plugin sends content and ads metadata to the Nielsen backend. The content metadata is taken by the plugin from the AnalyticsMetaData. The advertisements metadata is taken from IMA Ad object.

The plugin uses the following variables to generate the channelInfo:

• channelName will be filled with analyticsMetadata.assetId

• videoUrl will be filled with playerController.getPlayerConfig().contentUrl

And in order to generate the jsonMetadata (in loadMetadata(JSONObject jsonMetadata)):

• assetId will be filled with analyticsMetadata.assetId

• length will be filled with playerController.getDuration()

And finally to generate the advertisement metadata:

• type is one of preroll, midroll and postroll according to ad.position

• length is equal to TimeUtils.ms2s(ad.durationMs)

• assetid is equal to ad.id

• title is equal to ad.title

However, when needed, the advertisement metadata can be enriched by the client application by implementing and registering AdClientInterface.Listener:

PlayerView playerView;
...

AdController adController = playerView.getPlayerController().getAdController();
if (adController != null) {
    adController.setClientListener(new AdClientInterface.Listener() {
        @Nullable
        public Bundle onGetMetadata(@NonNull Ad ad) {
            Bundle bundle = new Bundle();
            bundle.putString("cdn", ".....");
            return bundle;
        }
    });
}

It is also possible that instead of the integrated IMA service the client uses its own implementation of an ads provider. In this case, the client needs to take care of content and ads playback switches and the plugin only forwards the ads metadata to the Nielsen backend:

PlayerView playerView;
...

AdController adController = playerView.getPlayerController().getAdController();
if (adController != null) {
    adController.adStarted(new Ad());
    ...
    adController.adSetPlaybackPosition(1);
    adController.adSetPlaybackPosition(2);
    ...
    adController.adCompleted();
}

Note, that in the latter case the ads metadata enrichment is also possible.

Mux¶

The PRESTOplay SDK for Android is integrated with Mux service in the form of a plugin. First, the plugin needs to be added as a dependency in the application gradle:

dependencies {
    ...
    compile 'com.castlabs.player:mux-plugin:1.0.0'
    ...
}

You also need to add Mux’ Maven repository to your dependencies in gradle:

repositories{
    ...
    maven { url 'https://muxinc.jfrog.io/artifactory/default-maven-release-local/' }
    ...
}

This will add Mux plugin to the project and the plugin can be registered with the PRESTOplay SDK for Android:

MuxPlugin muxPlugin = new MuxPlugin(MUX_ENVIRONMENT_KEY);
PlayerSDK.register(muxPlugin);

Note that you can also omit the Mux ENVIRONMENT KEY in the constructor. If you chose not to inform it, it must be set in Mux’s CustomerPlayerData right before opening the PlayerController. If the Environment Key is informed in the CustomerPlayerData passed to the Player, it will override the one used to create the MuxPlugin.

In addition, you can use the Mux CustomerPlayerData object to add content metadata.

You should create the CustomerPlayerData object and fill it with the desired fields. This object will be later passed to the createMetadata method.

Please refer to more details about this object to the Mux documentation.

The Plugin will automatically map the following values from AnalyticsMetaData.

• videoIsLive is informed with the value from analyticsMetaData.live

• videoId is informed with the value from analyticsMetaData.assetId

In addition, the Plugin will try to fill the following fields if they are uninformed:

• videoDuration is taken from analyticsMetaData.durationSeconds if informed, or from the stream itself otherwise (if available)

• videoSourceUrl filled with PlayerController’s getPath return value

• videoStreamType possible values are DASH, HLS, MP4, SmoothStreaming and Unknown

Passing Mux metadata to the player:

// Create MUX CustomerData, fill in metadata
CustomerVideoData videoData = new CustomerVideoData();
videoData.setVideoTitle("Inception");
videoData.setVideoLanguageCode("en");
videoData.setVideoProducer(...);
videoData.setVideoEncodingVariant(...);

// Create MUX PlayerData
CustomerPlayerData playerData = new CustomerPlayerData();
playerData.setViewerUserId("userId");
playerData.setExperimentName(...);

// This will override the key set when creating the MuxPlugin
// Not needed in most cases
playerData.setEnvironmentKey("MUX_ENVIRONMENT_KEY");

CustomerViewData viewData = new CustomerViewData();
viewData.setViewSessionId("viewSessionId");

// (Optional) Set custom dimensions data
CustomData customData = new CustomData();
customData.setCustomData1("customDimensionValue1");

// (Optional) Custom Options
CustomOptions customOptions = new CustomOptions();
//customOptions.setBeaconDomain("beacon.example.domain.com");

// Create CustomerData and pass all data objects
CustomerData customerData = new CustomerData(playerData, videoData, viewData);
customerData.setCustomData(customData);

// Create AnalyticsMetadata
AnalyticsMetaData analyticsMetaData = MuxPlugin.createMetadata(
        false,              // Live or not, will set analyticsMetadata.live
        prefs.getAssetId(), // Unique asset identifier, will set analyticsMetadata.assetId
        customerData,       // CustomerData
        customOptions,      // CustomOptions, or null
        null);              // Already existing AnalyticsMetaData object, or null

// Set the analytics meta-data
intent.putExtra(SdkConsts.INTENT_ANALYTICS_DATA, analyticsMetaData);

In this example, we create the meta-data and then pass it to the Intent Bundle that is used to start playback.

With this meta-data configuration in place and passed to the PlayerController either through the Intent Bundle or explicitly trough setAnalyticsMetaData, the session will be automatically started and stopped.

Conviva¶

The PRESTOplay SDK for Android is integrated with Conviva analytics service in the form of Conviva plugin. The Conviva plugin is part of the bundle repository and can be added as a dependency in the application gradle:

dependencies {
    ...
    implementation 'com.castlabs.player:conviva-plugin:1.0.0'
    ...
}

This will add Conviva plugin to the project and the plugin can be registered with the PRESTOplay SDK for Android:

ConvivaPlugin convivaPlugin = new ConvivaPlugin(CONVIVA_CUSTOMER_KEY);

if (BuildConfig.DEBUG) {
    HashMap<String, Object> settings = new HashMap<>();
    settings.put(ConvivaSdkConstants.GATEWAY_URL, CONVIVA_TOUCHSTONE_GATEWAY);
    settings.put(ConvivaSdkConstants.LOG_LEVEL, ConvivaSdkConstants.LogLevel.DEBUG);
    convivaPlugin.setSettings(settings);
}

HashMap<String, String> deviceInfo = new HashMap<>();
deviceInfo.put(ConvivaSdkConstants.DEVICEINFO.ANROID_BUILD_MODEL, ".....");
deviceInfo.put(ConvivaSdkConstants.DEVICEINFO.OPERATING_SYSTEM_VERSION, ".....");
deviceInfo.put(ConvivaSdkConstants.DEVICEINFO.DEVICE_BRAND, ".....");
deviceInfo.put(ConvivaSdkConstants.DEVICEINFO.DEVICE_MANUFACTURER, ".....");
deviceInfo.put(ConvivaSdkConstants.DEVICEINFO.DEVICE_MODEL, ".....");
deviceInfo.put(ConvivaSdkConstants.DEVICEINFO.DEVICE_TYPE, ".....");
deviceInfo.put(ConvivaSdkConstants.DEVICEINFO.DEVICE_VERSION, ".....");
convivaPlugin.setDeviceInfo(deviceInfo);

PlayerSDK.register(convivaPlugin);

The Conviva plugin benefits from the PRESTOplay SDK for Android integrated with IMA service and provides with two use cases out of the box: content with and without IMA advertisements. The content metadata is taken by the plugin from the AnalyticsMetaData. The advertisements metadata is taken from IMA Ad object.

The Plugin will automatically map the following values:

• ConvivaSdkConstants.FRAMEWORK_NAME is filled with the value from SdkConsts.PLAYER_NAME

• ConvivaSdkConstants.FRAMEWORK_VERSION is filled with the value from PlayerSDK.getVersion()

• ConvivaSdkConstants.STREAM_URL is filled with the value from playerController.getPath()

• ConvivaSdkConstants.ASSET_NAME is filled with the value from analyticsMetaData.assetId

• ConvivaSdkConstants.IS_LIVE is filled with the value from analyticsMetaData.live

• ConvivaSdkConstants.VIEWER_ID is filled with the value from analyticsMetaData.viewerId

• ConvivaSdkConstants.DURATION is filled with the value from TimeUtils.us2s(playerController.getDuration()) (If the duration was not valid it will filled with analyticsMetaData.durationSeconds)

Also the advertisement metadata will automatically map the following values:

• ConvivaSdkConstants.AdType is determined with the value of ad.streamType (It will be ConvivaSdkConstants.AdType.SERVER_SIDE or ConvivaSdkConstants.AdType.CLIENT_SIDE)

• ConvivaSdkConstants.AdPlayer is determined with the value of ad.playerType (It will be ConvivaSdkConstants.AdPlayer.CONTENT or ConvivaSdkConstants.AdPlayer.SEPARATE)

Passing Conviva metadata to the player:

// Create extra tags
Bundle extra = new Bundle();

// Conviva predefined tags
extra.putString(ConvivaAnalyticsSession.META_KEY_APPLICATION_NAME, "My Application Name");
extra.putString(ConvivaAnalyticsSession.META_KEY_DEFAULT_RESOURCE, "...");

// Optional custom tags
Bundle customTags = new Bundle();
customTags.putString("sampleCustomTag", "sampleCustomValue");

// Create analytics meta-data
AnalyticsMetaData analyticsMetaData = ConvivaPlugin.createMetadata(live, assetId, "viewerID", extra, customTags);

// Set the analytics meta-data
intent.putExtra(SdkConsts.INTENT_ANALYTICS_DATA, analyticsMetaData);

The Conviva plugin also exposes the underlying ConvivaVideoAnalytics and ConvivaAdAnalytics instances. This may be useful for an advanced use cases, such as sending custom playback related events.

To send Conviva custom playback related event:

// Get the Analytics session
ConvivaAnalyticsSession convivaAnalyticsSession = playerView.getPlayerController().getComponent(ConvivaAnalyticsSession.class);

if (convivaAnalyticsSession != null) {
    // Fill custom map
    HashMap<String, Object> customData = new HashMap<>();
    customData.put("now", Long.toString(System.currentTimeMillis()));
    customData.put("fizz", "buzz");

    String eventType = "customEvent";

    // Get the ConvivaVideoAnalytics instance
    ConvivaVideoAnalytics videoAnalytics = convivaAnalyticsSession.getVideoAnalytics();

    // Send event
    if (videoAnalytics != null) {
        videoAnalytics.reportPlaybackEvent(eventType, customData);
    }

    // Get the ConvivaAdAnalytics instance
    ConvivaAdAnalytics adAnalytics = convivaAnalyticsSession.getAdAnalytics();

    // Send event
    if (adAnalytics != null) {
        String errorMessage = "...";
        adAnalytics.reportAdFailed(errorMessage);
    }
}

Broadpeak¶

The PRESTOplay SDK for Android is integrated with Broadpeak analytics service in the form of Broadpeak plugin. The Broadpeak plugin is part of the bundle repository and can be added as a dependency in the application gradle:

dependencies {
    ...
    compile 'com.castlabs.player:broadpeak-plugin:1.0.0'
    ...
}

This will add Broadpeak plugin to the project and the plugin can be registered with the PRESTOplay SDK for Android:

BroadpeakPlugin broadpeakPlugin = new BroadpeakPlugin("analytics_url", "nano_cdn_host", "*")

PlayerSDK.register(broadpeakPlugin);

// ...

PlayerSDK.init(getApplicationContext());

The Broadpeak plugin uses takes care of sending player metrics and managing view lifecycle calls as required by the underlying SmartLib class.

The BroadpeakPlugin intercepts the first manifest request, and replaces it with the return value of SmartLib::getURL. It’s the SmartLib responsibility to perform such Uri redirect. Internally, the SmartLib uses the domains name list in order to decide whether to actually perform a url redirect for the current domain or not. This domain list should be set while creating the BroadpeakPlugin, through its last argument.

If you want to perform any advanced operations and interact directly with the Broadpeak SDK, you can use the SmartLib class.

In case that the BroadpeakPlugin should be disabled for a playback session, this can be achieved as follows, before creating the PlayerController:

BroadpeakPlugin broadpeakPlugin = PlayerSDK.getPlugin(BroadpeakPlugin.class);
broadpeakPlugin.setEnabled(false);

// ...

playerView.getPlayerController().open(...);

This way the BroadpeakPlugin can be enabled or disabled at run-time without needing to re-init the SDK.

The Broadpeak session allows to set custom parameters and options. This is how those can be passed to the player:

// Create Analytics Metadata for Broadpeak
Bundle customParameters = new Bundle();
customParameters.putString("name", "value");
customParameters.putString("pre_startup_time", "in_ms");

// Options
SparseArray<Object> options = new SparseArray<Object>();
options.put(StreamingSessionOptions.GDPR_PREFERENCE, StreamingSessionOptions.GDPR_CLEAR);
options.put(StreamingSessionOptions.USERAGENT_AD_EVENT, "useragent");
options.put(StreamingSessionOptions.SESSION_KEEPALIVE_FREQUENCY, 5000);

AnalyticsMetaData analyticsMetaData = BroadpeakPlugin.createMetadata(live, assetId, customParameters, options);
put(SdkConsts.INTENT_ANALYTICS_DATA, metadata);

// Set the analytics meta-data
intent.putExtra(SdkConsts.INTENT_ANALYTICS_DATA, analyticsMetaData);

In this example, we create the meta-data and then pass it to the Intent Bundle that is used to start playback.

Please check the Broadpeak documentation for a complete list of the available parameters and options.

Vimond¶

The PRESTOplay SDK for Android is integrated with Vimond Player Session API in the form of a plugin.

In addition to providing basic analytics capabilties, the Vimond plugin provides an implementation of concurrent stream limiting.

First, the plugin needs to be added as a dependency in the application gradle:

dependencies {
    ...
    compile 'com.castlabs.player:vimond-plugin:1.0.0'
    ...
}

This will add Vimond plugin to the project and the plugin can be registered with the PRESTOplay SDK for Android:

VimondPlugin vimondPlugin = new VimondPlugin();
PlayerSDK.register(vimondPlugin);

At playback time, a JSONObject must be provided to the plugin, alongside with Vimond’s authentication token.

This object, alongside with the token, will be later passed to the createMetadata method. This object, or “template”, must be retrieved through Vimond’s Play Service API prior to playback session start. Please refer to more details about this object to the Vimond documentation.

In order to retrieve a response from Vimond’s Play Service API, an authentication token is needed, which will be also needed by the Plugin to perform the Player Session API calls.

From the Play Service API response, the template object must be retrieved. The Plugin will automatically fill in most of the fields present in the Vimond template, but you are still required to provide values for the following fields:

• originator

• client.envPlatform

• client.envVersion

• viewingSession

You can get a detailed description of each field on Vimond’s documentation.

Passing Vimond template to the player:

// Extract Vimond template from Vimond's Play Service API response
// ...
vimondObject = new JSONObject(...);

// Fill in required fields
vimondObject.put("originator", ...);
vimondObject.getJSONObject("client").put("envPlatform", ...);
vimondObject.getJSONObject("client").put("envVersion", ...);
vimondObject.put("viewingSession", ...);

// Create AnalyticsMetadata with the template and the Auth token.
AnalyticsMetaData analyticsMetaData = VimondPlugin.createMetadata(vimondObject, "token");

// Set the analytics meta-data
intent.putExtra(SdkConsts.INTENT_ANALYTICS_DATA, analyticsMetaData);

In this example, we create the meta-data and then pass it to the Intent Bundle that is used to start playback.

Alternatively, you can also use a PlayerConfig object and set its analyticsMetaData field:

// ...

// Set the analytics meta-data
playerConfigBuilder.analyticsMetaData(analyticsMetaData);

With this meta-data configuration in place and passed to the PlayerController either through the Intent Bundle or explicitly trough setAnalyticsMetaData, the session will be automatically started and stopped.

The VimondPlugin allows for further customisation via the VimondComponent.

The component allows for registering a callback to receive all Vimond backend response codes and act accordingly. It also allows for setting a new authentication token at runtime, and other configuration flags.

The callback can be used for logging, or to perform a custom action if desired. For instance, if the VimondPlugin is configured not to stop playback on an invalid response code, such action could be performed in the callback: playerController.release().

In order to register a callback, you must retrieve the instance of the VimondComponent as follows:

VimondComponent vimond = playerController.getComponent(VimondComponent.class);

vimond.setCallback(new VimondCallback() {
   @Override
   public void onVimondResponse(int httpStatusCode,
                                @Nullable Map<String, List<String>> headers,
                                @Nullable String responseBody) {
        Log.d(TAG, "Vimond response (" + httpStatusCode + ") " + responseBody);
   }
});

Adobe¶

The PRESTOplay SDK for Android is integrated with Adobe Mobile Services SDK in the form of a plugin.

Adobe’s SDK allows for tracking app navigation events, alongside with video tracking events. This integration takes care of the later of those. The SDK can be used from app code to perform additional operations, such as app navigation tracking.

First, the plugin needs to be added as a dependency in the application gradle:

dependencies {
    ...
    compile 'com.castlabs.player:adobe-plugin:1.0.0'
    ...
}

This will add the Adobe plugin to the project and the plugin can be registered with the PRESTOplay SDK for Android:

AdobePlugin adobePlugin = new AdobePlugin();
PlayerSDK.register(adobePlugin);

To configure Adobe’s SDK, a JSON file with name ADBMobileConfig.json must be included in the application’s assets directory. The file contains the information about your Adobe account. At runtime, the Adobe SDK will read such JSON and use its configuration. For more information on how to obtain the configuration JSON please refer to Adobe’s documentation.

To enable the Adobe plugin, you must create it like any other plugin, and register it in the PlayerSDK:

AdobePlugin adobePlugin = new AdobePlugin(/* optional boolean for debug logging */);
PlayerSDK.register(adobePlugin);
// ...
PlayerSDK.init(getApplicationContext());

At playback time, a MediaSettings instance must be provided to the plugin, in order for it to generate the AnalyticsMetadata instance, which will be later passed to the Player through the Intent or the PlayerConfig when calling one of the PlayerController.open(...) methods.

The plugin will not override any of the fields in the MediaSettings, except for the name in case it is null.

When starting playback, the MediaSettings must be provided to the plugin, via createMetadata, in order to generate the AnalyticsMetaData instance, which is then passed to the open() method:

MediaSettings mediaSettings = new MediaSettings();
// Populate MediaSettings as desired
bundle.putParcelable(SdkConsts.INTENT_ANALYTICS_DATA, AdobePlugin.createMetadata(mediaSettings));
// ...
playerController.open(bundle);

Alternatively, you can also use a PlayerConfig object and set its analyticsMetaData field:

// ...

// Set the analytics meta-data
playerConfigBuilder.analyticsMetaData(analyticsMetaData);

With this meta-data configuration in place and passed to the PlayerController either through the Intent Bundle or explicitly trough setAnalyticsMetaData, the session will be automatically started and stopped.

Crashlytics Integration¶

The SDK package bundles a plugin that can be used to setup and integrate Crashlytics with the SDK’s Crashlog mechanism. To enable the plugin, you will need to add it as a dependency in your project setup:

dependencies {
    ...
    compile 'com.castlabs.player:crashlytics-connector:1.0.0'
    ...
}

With the connector added to your project dependencies, you can load and register the plugin before you initialize the SDK:

Fabric.with(getApplicationContext(), new Crashlytics());
PlayerSDK.register(new CrashlyticsPlugin());
PlayerSDK.init(getApplicationContext());

Please note that the plugin does not initialize Fabric and Crashlytics for you. Before you register an instance of this plugin with the SDK, please make sure that you initialize the Fabric SDK and add at least the Crashlytics Kit.

Intercept Traffic¶

OkHttp can be also used for debugging purposes to intercept and show the network traffic. Please note that you should not deploy this in production when you publish your Application. This is a tool used for development and debugging purposes. You can find more information about Stetho, the library used for this, on their Website.

In order to use the network interceptor, you will need to add additional dependencies to the Stetho library and its OkHttp integration:

dependencies{
     ...
     compile 'com.castlabs.player:okhttp-plugin:1.0.0'
     compile 'com.facebook.stetho:stetho:1.3.1'
     compile 'com.facebook.stetho:stetho-okhttp3:1.3.1'
     ...
}

With these dependencies in place, you can setup the plugin using the network interceptor:

public class MyApp extends Application {
    @Override
    public void onCreate() {
        super.onCreate();

        PlayerSDK.register(new OkHttpPlugin(
             new OkHttpClient.Builder().addNetworkInterceptor(
                 new StethoInterceptor())));
        PlayerSDK.register(new OkHttpPlugin());
        PlayerSDK.init(getApplicationContext());
    }
}

The OkHttp plugin allows you to pass a pre-configured builder in its’ constructor. We use that to pass in a builder configured to interecept network traffic using Stetho.

Using this extended setup allows you to use your local chrome development tools to intercept and show network traffic. For that, run the Application on a device connected via USB, start chrome and open a tab on chrome://inspect/#devices. Enable USB discovery and you will see you Application listed. You can now inspect the network traffic of your application.

Idle connection eviction¶

While usually there’s no need to handle connections at this level, it’s possible to evict all idle connections held by OkHttp. This might be of interest to save server resources if connections are kept alive by it for a very long time:

.. code-block:: java

playerController.release();

// Evict idle connections final OkHttpPlugin okHttpPlugin = PlayerSDK.getPlugin(OkHttpPlugin.class); okHttpPlugin.evictIdleConnections();

Loading strategy¶

In order to improve the user experience. The Thumbnail plugin also allows for smarter preloading approaches. This is achieved through the LoadingStrategy class.

By default, thumbnail load will start whenever the first thumbnail is requested. It is possible to configure this behaviour so that loading starts immediately, or after a delay following playback start. This can be configured by providing a delay: Builder.loadStartDelayMs(long).

A loading strategy defines loading “waves”. These waves only load a subset of all the available thumbnails for an asset. The goal being to spread out the thumbnails and to be able to provide a reasonable thumbnail for any media time in a short time.

A more spaced-out Wave will load fewer thumbnails and finish preloading faster, but will provide less accurate thumbnails. A less spaced Wave will provide more accurate thumbnails but takes longer to complete.

The plugin already uses a Wave-based approach for preloading by default. Such default consists of 3 waves which will preload thumbnails in 1-minute intervals, followed by 15-second intervals followed by all thumbnails.

A custom LoadingStrategy can be defined upon plugin creation. The following example defines four waves:

public class MyApp extends Application {
    @Override
    public void onCreate() {
        super.onCreate();

        final ThumbsPlugin plugin = new ThumbsPlugin(true);
                plugin.setLoadingStrategy(new LoadingStrategy.Builder()
                        .loadStartDelayMs(0) // Start loading immediately
                        .addPercentageWave(0.10f)
                        .addTimeWave(1, TimeUnit.MINUTES)
                        .addTimeWave(20, TimeUnit.SECONDS)
                        .addStepWave(1)
                .get());

        PlayerSDK.register(plugin);
        PlayerSDK.init(getApplicationContext());
    }
}

Note that waves are processed sequentially in addition order, so they should be defined in ascending “density” order, ie. waves which will preload more thumbnails should be added last.

This can also be achieved by setting a different loading strategy at runtime, before opening the Player:

final ThumbnailProvider thumbs = playerController.getComponent(ThumbnailProvider.class);

thumbs.setLoadingStrategy(new LoadingStrategy.Builder()
            .loadStartDelayMs(0) // Start loading immediately
            .addPercentageWave(0.10f)
            .addTimeWave(1, TimeUnit.MINUTES)
            .addTimeWave(20, TimeUnit.SECONDS)
            .addStepWave(1)
        .get());

playerController.open(...);

For more details check the documentation of the LoadingStrategy class.

Network Configuration¶

The NetworkConfiguration can be used to specify the timeouts for the thumbnail downloads.

The following example shows how you can achieve this:

bundle.put(SdkConsts.INTENT_NETWORK_CONFIGURATION, new NetworkConfiguration.Builder()
    // You can specify the timeouts for the thumbnails
    .thumbnailConnectionTimeoutMs(500)
    .thumbnailReadTimeoutMs(500)
    .get());

Embedded¶

For embedded thumbnails, such as in a DASH in-stream thumbnails, there’s no additional action required. The SDK will automatically load the thumbnails defined in AdaptationSets onto the Player Model. You still need to control how those will be rendered, which is detailed in the section Using the built-in thumbnails view.

Side-loaded¶

You can start loading thumbnail data directly if you registered the plugin and you are loading your streams through an Intent Bundle (see Starting Playback from an Intent). You need to create an instance of SideloadedTrack and add it to your intent bundle using the SdkConsts.INTENT_SIDELOADED_TRACKS_ARRAYLIST key. For example:

ArrayList<SideloadedTrack> data = new ArrayList<SideloadedTrack>(){{
    add(new SideloadedTrack.ThumbnailBuilder()
            .url("thumbs/thumbs.vtt")
            .thumbnailType(ThumbnailDataTrack.TYPE_WEBVTT_INDEX)
    .get());
}}
...
intent.putParcelableArrayList(SdkConsts.INTENT_SIDELOADED_TRACKS_ARRAYLIST, data);

The ThumbnailBuilder also provides methods for configuring extra fields necessary for other thumbnail formats, such as gridded JPEG template:

ArrayList<SideloadedTrack> data = new ArrayList<SideloadedTrack>(){{
    add(new SideloadedTrack.ThumbnailBuilder()
            .url("http://example.com/content/thumbs/$index$.jpg")
            .gridHeight(4)
            .gridWidth(5)
            .thumbnailType(ThumbnailDataTrack.TYPE_JPEG_TEMPLATE)
            .intervalMs(10_000)
    .get());
}}
...
intent.putParcelableArrayList(ThumbsPlugin.INTENT_SIDELOADED_TRACKS_ARRAYLIST, data);

This will create a data object and add it to the intent. Note that we are specifying the type explicitly here. This is not strictly necessary and the plugin will try to infer the type from the URL extension, i.e. .vtt vs. .bif vs. .jpg.

With the data object added to the intent, an implementation of ThumbnailProvider will be created automatically and is exposed as a component of the PlayerController. You can access the provider instance using PlayerController.getComponent(). For example:

ThumbnailProvider provider = playerController.getComponent(ThumbnailProvider.class);

The ThumbnailProvider interface is the main interaction point to get access to thumbnails. It provides a getThumbnail method that asynchronously loads a thumbnail for the requested position and provides it back the callback implementation that is passed to the method. It supports performing multiple concurrent getThumbnail calls. Thumbnails can also be requested with a time tolerance. Check the Thumbnail rendering time tolerance section for more details.

At this point a view implementation can use the provider and a callback to get a handle on the Bitmap and show it on screen. The PRESTOplay SDK for Android already bundles a simple view implementation with a relatively flexible way to render and position a thumbnail.

Using the built-in thumbnails view¶

If you registered the thumbnails plugin and enabled the usage of the internal view component, you do not need to create a view or interact with the provider explicitly. Instead, you add your ThumbnailData to the Intent Bundle and once a PlayerView is initialized, you can access the thumbnail view component and show or hide thumbnails on to of your player view.

In order to properly render the thumbnails, you’ll need to register a SeekBarListener to the PlayerControllerView. This listener will be invoked whenever there’s a scrubbing event on the Seekbar, so you can implement your logic regarding thumbnail rendering.

You can also specify a third parameter to fine-tune which Thumbnail should be fetched in relation to the requested time. More info about this parameter is available in the Thumbnail index selection section.

Here you can see a sample implementation.

public void onSeekbarScrubbed(long positionUs, double seekBarProgressPercent) {
    ThumbsPlugin.ThumbnailViewComponent thumbsView = playerView.getComponent(
            ThumbsPlugin.ThumbnailViewComponent.class);
    if (thumbsView != null){
        thumbsView.show(positionUs, new DefaultThumbnailView.Callback() {
            @Override
            public void getThumbnailRect(Rect output, DefaultThumbnailView.ThumbnailInfo info, boolean isSmallScreen) {
                ViewGroup videoView = playerView.getVideoView();
                output.set(
                        videoView.getLeft(),
                        videoView.getTop(),
                        videoView.getRight(),
                        videoView.getBottom());
            }
        }, ThumbsPlugin.THUMBNAIL_INDEX_CURRENT);
    }
}

@Override
public void onSeekbarReleased() {
    final ThumbsPlugin.ThumbnailViewComponent thumbsView = playerView.getComponent(
            ThumbsPlugin.ThumbnailViewComponent.class);
    if (thumbsView != null){
        thumbsView.hide();
    }
}

The example above demonstrates the basic interactions with the ThumbnailViewComponent. Here we assume we have to methods, one that is called when a Seekbar is scrubbed and thumbnails should be shown, and the counterpart that is triggered when scrubbing stops and the thumbnails should be hidden. Hiding is relatively simple and a matter of calling the hide() method. Showing the thumbnails is slightly more complex. We call the show() method and pass two parameters: the time in microseconds for which we would like to receive a thumbnail and a Callback implementation. The callback is triggered once the Bitmap data are loaded. It its called with size information about the thumbnail as well as an output rectangle. The output rectangle needs to be filled with the coordinates and size of the desired thumbnail. The coordinates are relative to the thumbnail view container, but the default view container has the same dimensions as the player view. The example above uses the exposed video view to place the thumbnail image full-screen above the video, but treat this as a simple example. You can use the output rectangle to customize the size and the position of the resulting thumbnail.

The returned Thumbnail might not be the corresponding one for the requested position, as the DefaultThumbnailView uses the getThumbnail API defining some tolerance. It is recommended that this is the behaviour used as it improves the perceived responsibility. Nevertheless, this is a configurable setting on the DefaultThumbnailView and you may change it through DefaultThumbnailView.setThumbnailTolerance(long).

The DefaultThumbnailView will automatically be created if you use a PlayerView.

If you don’t want to use a PlayerView but still decide to use the DefaultThumbnailView available in the PRESTOplay SDK for Android, you can create it yourself, either programmatically or by defining it in an xml layout file. If you use the latest approach, you must pass your layout View to PlayerController.setComponentView(int, android.view.View) with the corresponding id, defined in PRESTO_DEFAULT_THUMBNAIL_VIEW, or R.id.presto_default_thumbnail_view so the ThumbsPlugin can properly find the DefaultThumbnailView.

Thumbnail rendering time tolerance¶

In order to benefit from the several loading Waves approach, the ThumbsPlugin provides an API to return a close neighbour of the desired thumbnail if its data is already available.

This tolerance represents the maximum difference of time time between the position of the requested thumbnail and that of a potentially already-loaded thumbnail in the index. If a matching nearby thumbnail with data within the specified tolerance is found, it will be returned immediately. Otherwise, the exact thumbnail will be scheduled for fetching.

By default, the DefaultThumbnailView performs thumbnail requests with some tolerance, which can be changed through DefaultThumbnailView.setThumbnailTolerance(long).

If you’re performing direct thumbnail requests through a ThumbnailProvider, you can specify a tolerance with the ThumbnailProvider.getThumbnail(long, com.castlabs.sdk.thumbs.ThumbnailProvider$Callback, int, long) method.

Thumbnail index selection¶

When using the ThumbnailViewComponent, it’s possible to pass a third parameter to the show() method in order to determine which Thumbnail should be returned, relative to the requested media time.

There are three possible values:

• ThumbsPlugin.THUMBNAIL_INDEX_CURRENT: This corresponds to the thumbnail with the highest media time that is lower than the requested position.

• ThumbsPlugin.THUMBNAIL_INDEX_NEXT: This corresponds to the thumbnail with the lowest media time that is higher than the requested position.

• ThumbsPlugin.THUMBNAIL_INDEX_CLOSEST: This corresponds to the thumbnail with the lowest difference between its media time and the requested position.

The following scheme can better illustrate the behaviour. The example assumes Thumbnails are available every 10 seconds, starting from the beginning (media time 0). The top marker represents the requested time, that being the first parameter to the ThumbnailViewComponent.show(...) call, and the ones below the timeline, the Thumbnail times for each indexing type:

Requested Thumbnail for position 4

          0   v     10        20        30
Return    |---------|---------|---------|-----
Current:  ^
Closest:  ^
Next:               ^


Requested Thumbnail for position 6

          0     v   10        20        30
Return    |---------|---------|---------|-----
Current:  ^
Closest:            ^
Next:               ^


Requested Thumbnail for position 18

          0         10      v 20        30
Return    |---------|---------|---------|-----
Current:            ^
Closest:                      ^
Next:                         ^

Downloader integration¶

The thumbnails plugin is integrated with the Downloader Plugin, hence there is offline support for thumbnails as well. This is currently limited to BIF and WebVTT thumbnails. Just add the ThumbnailData to the Intent that is used to initiate the download and the thumbnails will be fetched and downloaded as well. When you start the local playback, pass the same ThumbnailData to the local playback intent. The player will translate any remote URLs automatically to the correct local files and relative URLs will still resolve correctly, now relative to the local manifest.

Thumbnail loading details¶

The thumbnail plugin can preload thumbnails in the background in order for them to be ready as much a possible whenever a request comes in.

The background loader is multi-threaded, and the number of threads is configurable through the ThumbsPlugin.setThumbnailLoadThreads(int) static method.

Whenever a specific thumbnail request (either by asking the DefaultThumbnailView to show a thumbnail for a time, or through one of the getThumbnail methods) is issued, it will skip the pending queue of background thumbnail loads in order to be as responsive as possible. Successive specific requests will be queued and executed in a FIFO fashion. To clear this queue of pending specific thumbnail requests, the following method can be used: ThumbnailProvider.cancelPendingRequests().

Standalone Thumbnail providers¶

It is possible to obtain an instance of a ThumbnailProvider without using a PlayerController instance which will allow for fetching thumbnails independently of any ongoing playback, even for completely different content.

In order to obtain a StandaloneThumbnailProvider to fetch embedded DASH thumbnails use StandaloneThumbnailFactory.getProvider:

StandaloneThumbnailProvider provider = StandaloneThumbnailFactory.getProvider(
    new PlayerConfig.Builder("https://example.com/manifest.mpd").get());

// Fetch thumbnails
Future<ThumbnailProvider.ThumbnailResult> thumbnailResultFuture = provider.getThumbnail(30_000_000L, ThumbsPlugin.THUMBNAIL_INDEX_CURRENT);
Bitmap thumbnailBitmap = thumbnailResultFuture.get().thumbnail;

// Free up resources
provider.destroy();

In case the provided DASH manifest is a live stream manifest updates will be performed in the background resulting in the thumbnail index also being updated alongside. To get updates of this process it is possible to register a IndexRefreshListener:

provider.addIndexRefreshListener(new ThumbnailProvider.IndexRefreshListener() {
    @Override
    public void onIndexRefreshed(@NonNull ThumbnailProvider provider) {
        // Index has been refreshed. Fetch thumbnail for a given time
        Future<ThumbnailProvider.ThumbnailResult> thumbRequest = provider.getThumbnail(position, ThumbsPlugin.THUMBNAIL_INDEX_CURRENT);
    }
});

It is also possible to get thumbnails out of a VTT or JPG Template SideloadedTrack:

StandaloneThumbnailProvider provider = StandaloneThumbnailFactory.getProvider(new SideloadedTrack.ThumbnailBuilder()
            .url("https://demo.castlabs.com/media/QA/tos_thumbs/$index$.jpg")
            .gridHeight(1)
            .gridWidth(1)
            .thumbnailType(ThumbnailDataTrack.TYPE_JPEG_TEMPLATE)
            .intervalMs(5_000)
        .get());

Google Cardboard¶

The PlayerView360 is an extension of the default PlayerView. You can add it as a view component to your own activity. The view exposes the underlying GvrView which needs to be passed to the Google VR SDK in your activity.

You can use the PlayerView360 in your own Activity (that usually extends GvrActivity). The PlayerView360 will handle all the transformations required to render the view.

An example of this is the CardboardActivity class in the ‘threesixty_demo’ sample app.