Java Code Examples for com.google.android.exoplayer2.util.Util#createHandler()

/**
 * @param output The output.
 * @param outputLooper The looper associated with the thread on which the output should be called.
 *     If the output makes use of standard Android UI components, then this should normally be the
 *     looper associated with the application's main thread, which can be obtained using {@link
 *     android.app.Activity#getMainLooper()}. Null may be passed if the output should be called
 *     directly on the player's internal rendering thread.
 * @param decoderFactory A factory from which to obtain {@link SubtitleDecoder} instances.
 */
public TextRenderer(
    TextOutput output, @Nullable Looper outputLooper, SubtitleDecoderFactory decoderFactory) {
  super(C.TRACK_TYPE_TEXT);
  this.output = Assertions.checkNotNull(output);
  this.outputHandler =
      outputLooper == null ? null : Util.createHandler(outputLooper, /* callback= */ this);
  this.decoderFactory = decoderFactory;
  formatHolder = new FormatHolder();
}
 

private VSyncSampler() {
  sampledVsyncTimeNs = C.TIME_UNSET;
  choreographerOwnerThread = new HandlerThread("ChoreographerOwner:Handler");
  choreographerOwnerThread.start();
  handler = Util.createHandler(choreographerOwnerThread.getLooper(), /* callback= */ this);
  handler.sendEmptyMessage(CREATE_CHOREOGRAPHER);
}
 

/**
 * Constructs a {@link DownloadManager}.
 *
 * @param context Any context.
 * @param downloadIndex The download index used to hold the download information.
 * @param downloaderFactory A factory for creating {@link Downloader}s.
 */
public DownloadManager(
    Context context, WritableDownloadIndex downloadIndex, DownloaderFactory downloaderFactory) {
  this.context = context.getApplicationContext();
  this.downloadIndex = downloadIndex;

  maxParallelDownloads = DEFAULT_MAX_PARALLEL_DOWNLOADS;
  minRetryCount = DEFAULT_MIN_RETRY_COUNT;
  downloadsPaused = true;
  downloads = Collections.emptyList();
  listeners = new CopyOnWriteArraySet<>();

  @SuppressWarnings("methodref.receiver.bound.invalid")
  Handler mainHandler = Util.createHandler(this::handleMainMessage);
  this.mainHandler = mainHandler;
  HandlerThread internalThread = new HandlerThread("DownloadManager file i/o");
  internalThread.start();
  internalHandler =
      new InternalHandler(
          internalThread,
          downloadIndex,
          downloaderFactory,
          mainHandler,
          maxParallelDownloads,
          minRetryCount,
          downloadsPaused);

  @SuppressWarnings("methodref.receiver.bound.invalid")
  RequirementsWatcher.Listener requirementsListener = this::onRequirementsStateChanged;
  this.requirementsListener = requirementsListener;
  requirementsWatcher =
      new RequirementsWatcher(context, requirementsListener, DEFAULT_REQUIREMENTS);
  notMetRequirements = requirementsWatcher.start();

  pendingMessages = 1;
  internalHandler
      .obtainMessage(MSG_INITIALIZE, notMetRequirements, /* unused */ 0)
      .sendToTarget();
}
 

public MediaPreparer(MediaSource mediaSource, DownloadHelper downloadHelper) {
  this.mediaSource = mediaSource;
  this.downloadHelper = downloadHelper;
  allocator = new DefaultAllocator(true, C.DEFAULT_BUFFER_SEGMENT_SIZE);
  pendingMediaPeriods = new ArrayList<>();
  @SuppressWarnings("methodref.receiver.bound.invalid")
  Handler downloadThreadHandler = Util.createHandler(this::handleDownloadHelperCallbackMessage);
  this.downloadHelperHandler = downloadThreadHandler;
  mediaSourceThread = new HandlerThread("DownloadHelper");
  mediaSourceThread.start();
  mediaSourceHandler = Util.createHandler(mediaSourceThread.getLooper(), /* callback= */ this);
  mediaSourceHandler.sendEmptyMessage(MESSAGE_PREPARE_SOURCE);
}
 

/**
 * Constructs a {@link DownloadManager}.
 *
 * @param context Any context.
 * @param downloadIndex The download index used to hold the download information.
 * @param downloaderFactory A factory for creating {@link Downloader}s.
 */
public DownloadManager(
    Context context, WritableDownloadIndex downloadIndex, DownloaderFactory downloaderFactory) {
  this.context = context.getApplicationContext();
  this.downloadIndex = downloadIndex;

  maxParallelDownloads = DEFAULT_MAX_PARALLEL_DOWNLOADS;
  minRetryCount = DEFAULT_MIN_RETRY_COUNT;
  downloadsPaused = true;
  downloads = Collections.emptyList();
  listeners = new CopyOnWriteArraySet<>();

  @SuppressWarnings("methodref.receiver.bound.invalid")
  Handler mainHandler = Util.createHandler(this::handleMainMessage);
  this.mainHandler = mainHandler;
  HandlerThread internalThread = new HandlerThread("DownloadManager file i/o");
  internalThread.start();
  internalHandler =
      new InternalHandler(
          internalThread,
          downloadIndex,
          downloaderFactory,
          mainHandler,
          maxParallelDownloads,
          minRetryCount,
          downloadsPaused);

  @SuppressWarnings("methodref.receiver.bound.invalid")
  RequirementsWatcher.Listener requirementsListener = this::onRequirementsStateChanged;
  this.requirementsListener = requirementsListener;
  requirementsWatcher =
      new RequirementsWatcher(context, requirementsListener, DEFAULT_REQUIREMENTS);
  notMetRequirements = requirementsWatcher.start();

  pendingMessages = 1;
  internalHandler
      .obtainMessage(MSG_INITIALIZE, notMetRequirements, /* unused */ 0)
      .sendToTarget();
}
 

/**
 * @param output The output.
 * @param outputLooper The looper associated with the thread on which the output should be called.
 *     If the output makes use of standard Android UI components, then this should normally be the
 *     looper associated with the application's main thread, which can be obtained using {@link
 *     android.app.Activity#getMainLooper()}. Null may be passed if the output should be called
 *     directly on the player's internal rendering thread.
 * @param decoderFactory A factory from which to obtain {@link MetadataDecoder} instances.
 */
public MetadataRenderer(
    MetadataOutput output, @Nullable Looper outputLooper, MetadataDecoderFactory decoderFactory) {
  super(C.TRACK_TYPE_METADATA);
  this.output = Assertions.checkNotNull(output);
  this.outputHandler =
      outputLooper == null ? null : Util.createHandler(outputLooper, /* callback= */ this);
  this.decoderFactory = Assertions.checkNotNull(decoderFactory);
  formatHolder = new FormatHolder();
  buffer = new MetadataInputBuffer();
  pendingMetadata = new Metadata[MAX_PENDING_METADATA_COUNT];
  pendingMetadataTimestamps = new long[MAX_PENDING_METADATA_COUNT];
}
 

/**
 * @param output The output.
 * @param outputLooper The looper associated with the thread on which the output should be called.
 *     If the output makes use of standard Android UI components, then this should normally be the
 *     looper associated with the application's main thread, which can be obtained using {@link
 *     android.app.Activity#getMainLooper()}. Null may be passed if the output should be called
 *     directly on the player's internal rendering thread.
 * @param decoderFactory A factory from which to obtain {@link SubtitleDecoder} instances.
 */
public TextRenderer(
    TextOutput output, @Nullable Looper outputLooper, SubtitleDecoderFactory decoderFactory) {
  super(C.TRACK_TYPE_TEXT);
  this.output = Assertions.checkNotNull(output);
  this.outputHandler =
      outputLooper == null ? null : Util.createHandler(outputLooper, /* callback= */ this);
  this.decoderFactory = decoderFactory;
  formatHolder = new FormatHolder();
}
 

private VSyncSampler() {
  sampledVsyncTimeNs = C.TIME_UNSET;
  choreographerOwnerThread = new HandlerThread("ChoreographerOwner:Handler");
  choreographerOwnerThread.start();
  handler = Util.createHandler(choreographerOwnerThread.getLooper(), /* callback= */ this);
  handler.sendEmptyMessage(CREATE_CHOREOGRAPHER);
}
 

/**
 * @param manifest The initial manifest.
 * @param playerEmsgCallback The callback that this event handler can invoke when handling emsg
 *     messages that generate DASH media source events.
 * @param allocator An {@link Allocator} from which allocations can be obtained.
 */
public PlayerEmsgHandler(
    DashManifest manifest, PlayerEmsgCallback playerEmsgCallback, Allocator allocator) {
  this.manifest = manifest;
  this.playerEmsgCallback = playerEmsgCallback;
  this.allocator = allocator;

  manifestPublishTimeToExpiryTimeUs = new TreeMap<>();
  handler = Util.createHandler(/* callback= */ this);
  decoder = new EventMessageDecoder();
  lastLoadedChunkEndTimeUs = C.TIME_UNSET;
  lastLoadedChunkEndTimeBeforeRefreshUs = C.TIME_UNSET;
}
 

/**
 * @param output The output.
 * @param outputLooper The looper associated with the thread on which the output should be called.
 *     If the output makes use of standard Android UI components, then this should normally be the
 *     looper associated with the application's main thread, which can be obtained using {@link
 *     android.app.Activity#getMainLooper()}. Null may be passed if the output should be called
 *     directly on the player's internal rendering thread.
 * @param decoderFactory A factory from which to obtain {@link MetadataDecoder} instances.
 */
public MetadataRenderer(
    MetadataOutput output, @Nullable Looper outputLooper, MetadataDecoderFactory decoderFactory) {
  super(C.TRACK_TYPE_METADATA);
  this.output = Assertions.checkNotNull(output);
  this.outputHandler =
      outputLooper == null ? null : Util.createHandler(outputLooper, /* callback= */ this);
  this.decoderFactory = Assertions.checkNotNull(decoderFactory);
  formatHolder = new FormatHolder();
  buffer = new MetadataInputBuffer();
  pendingMetadata = new Metadata[MAX_PENDING_METADATA_COUNT];
  pendingMetadataTimestamps = new long[MAX_PENDING_METADATA_COUNT];
}
 

/**
 * @param output The output.
 * @param outputLooper The looper associated with the thread on which the output should be called.
 *     If the output makes use of standard Android UI components, then this should normally be the
 *     looper associated with the application's main thread, which can be obtained using {@link
 *     android.app.Activity#getMainLooper()}. Null may be passed if the output should be called
 *     directly on the player's internal rendering thread.
 * @param decoderFactory A factory from which to obtain {@link MetadataDecoder} instances.
 */
public MetadataRenderer(
    MetadataOutput output, @Nullable Looper outputLooper, MetadataDecoderFactory decoderFactory) {
  super(C.TRACK_TYPE_METADATA);
  this.output = Assertions.checkNotNull(output);
  this.outputHandler =
      outputLooper == null ? null : Util.createHandler(outputLooper, /* callback= */ this);
  this.decoderFactory = Assertions.checkNotNull(decoderFactory);
  formatHolder = new FormatHolder();
  buffer = new MetadataInputBuffer();
  pendingMetadata = new Metadata[MAX_PENDING_METADATA_COUNT];
  pendingMetadataTimestamps = new long[MAX_PENDING_METADATA_COUNT];
}
 

/**
 * @param manifest The initial manifest.
 * @param playerEmsgCallback The callback that this event handler can invoke when handling emsg
 *     messages that generate DASH media source events.
 * @param allocator An {@link Allocator} from which allocations can be obtained.
 */
public PlayerEmsgHandler(
    DashManifest manifest, PlayerEmsgCallback playerEmsgCallback, Allocator allocator) {
  this.manifest = manifest;
  this.playerEmsgCallback = playerEmsgCallback;
  this.allocator = allocator;

  manifestPublishTimeToExpiryTimeUs = new TreeMap<>();
  handler = Util.createHandler(/* callback= */ this);
  decoder = new EventMessageDecoder();
  lastLoadedChunkEndTimeUs = C.TIME_UNSET;
  lastLoadedChunkEndTimeBeforeRefreshUs = C.TIME_UNSET;
}
 

/**
 * @param manifest The initial manifest.
 * @param playerEmsgCallback The callback that this event handler can invoke when handling emsg
 *     messages that generate DASH media source events.
 * @param allocator An {@link Allocator} from which allocations can be obtained.
 */
public PlayerEmsgHandler(
    DashManifest manifest, PlayerEmsgCallback playerEmsgCallback, Allocator allocator) {
  this.manifest = manifest;
  this.playerEmsgCallback = playerEmsgCallback;
  this.allocator = allocator;

  manifestPublishTimeToExpiryTimeUs = new TreeMap<>();
  handler = Util.createHandler(/* callback= */ this);
  decoder = new EventMessageDecoder();
  lastLoadedChunkEndTimeUs = C.TIME_UNSET;
  lastLoadedChunkEndTimeBeforeRefreshUs = C.TIME_UNSET;
}
 

/**
 * @param output The output.
 * @param outputLooper The looper associated with the thread on which the output should be called.
 *     If the output makes use of standard Android UI components, then this should normally be the
 *     looper associated with the application's main thread, which can be obtained using {@link
 *     android.app.Activity#getMainLooper()}. Null may be passed if the output should be called
 *     directly on the player's internal rendering thread.
 * @param decoderFactory A factory from which to obtain {@link MetadataDecoder} instances.
 */
public MetadataRenderer(
    MetadataOutput output, @Nullable Looper outputLooper, MetadataDecoderFactory decoderFactory) {
  super(C.TRACK_TYPE_METADATA);
  this.output = Assertions.checkNotNull(output);
  this.outputHandler =
      outputLooper == null ? null : Util.createHandler(outputLooper, /* callback= */ this);
  this.decoderFactory = Assertions.checkNotNull(decoderFactory);
  formatHolder = new FormatHolder();
  buffer = new MetadataInputBuffer();
  pendingMetadata = new Metadata[MAX_PENDING_METADATA_COUNT];
  pendingMetadataTimestamps = new long[MAX_PENDING_METADATA_COUNT];
}
 

/**
 * @param output The output.
 * @param outputLooper The looper associated with the thread on which the output should be called.
 *     If the output makes use of standard Android UI components, then this should normally be the
 *     looper associated with the application's main thread, which can be obtained using {@link
 *     android.app.Activity#getMainLooper()}. Null may be passed if the output should be called
 *     directly on the player's internal rendering thread.
 * @param decoderFactory A factory from which to obtain {@link SubtitleDecoder} instances.
 */
public TextRenderer(
    TextOutput output, @Nullable Looper outputLooper, SubtitleDecoderFactory decoderFactory) {
  super(C.TRACK_TYPE_TEXT);
  this.output = Assertions.checkNotNull(output);
  this.outputHandler =
      outputLooper == null ? null : Util.createHandler(outputLooper, /* callback= */ this);
  this.decoderFactory = decoderFactory;
  formatHolder = new FormatHolder();
}
 

private VSyncSampler() {
  sampledVsyncTimeNs = C.TIME_UNSET;
  choreographerOwnerThread = new HandlerThread("ChoreographerOwner:Handler");
  choreographerOwnerThread.start();
  handler = Util.createHandler(choreographerOwnerThread.getLooper(), /* callback= */ this);
  handler.sendEmptyMessage(CREATE_CHOREOGRAPHER);
}
 

/**
 * @param output The output.
 * @param outputLooper The looper associated with the thread on which the output should be called.
 *     If the output makes use of standard Android UI components, then this should normally be the
 *     looper associated with the application's main thread, which can be obtained using {@link
 *     android.app.Activity#getMainLooper()}. Null may be passed if the output should be called
 *     directly on the player's internal rendering thread.
 * @param decoderFactory A factory from which to obtain {@link SubtitleDecoder} instances.
 */
public TextRenderer(
    TextOutput output, @Nullable Looper outputLooper, SubtitleDecoderFactory decoderFactory) {
  super(C.TRACK_TYPE_TEXT);
  this.output = Assertions.checkNotNull(output);
  this.outputHandler =
      outputLooper == null ? null : Util.createHandler(outputLooper, /* callback= */ this);
  this.decoderFactory = decoderFactory;
  formatHolder = new FormatHolder();
}
 

public MediaPreparer(MediaSource mediaSource, DownloadHelper downloadHelper) {
  this.mediaSource = mediaSource;
  this.downloadHelper = downloadHelper;
  allocator = new DefaultAllocator(true, C.DEFAULT_BUFFER_SEGMENT_SIZE);
  pendingMediaPeriods = new ArrayList<>();
  @SuppressWarnings("methodref.receiver.bound.invalid")
  Handler downloadThreadHandler = Util.createHandler(this::handleDownloadHelperCallbackMessage);
  this.downloadHelperHandler = downloadThreadHandler;
  mediaSourceThread = new HandlerThread("DownloadHelper");
  mediaSourceThread.start();
  mediaSourceHandler = Util.createHandler(mediaSourceThread.getLooper(), /* callback= */ this);
  mediaSourceHandler.sendEmptyMessage(MESSAGE_PREPARE_SOURCE);
}
 

/**
 * @param manifest The initial manifest.
 * @param playerEmsgCallback The callback that this event handler can invoke when handling emsg
 *     messages that generate DASH media source events.
 * @param allocator An {@link Allocator} from which allocations can be obtained.
 */
public PlayerEmsgHandler(
    DashManifest manifest, PlayerEmsgCallback playerEmsgCallback, Allocator allocator) {
  this.manifest = manifest;
  this.playerEmsgCallback = playerEmsgCallback;
  this.allocator = allocator;

  manifestPublishTimeToExpiryTimeUs = new TreeMap<>();
  handler = Util.createHandler(/* callback= */ this);
  decoder = new EventMessageDecoder();
  lastLoadedChunkEndTimeUs = C.TIME_UNSET;
  lastLoadedChunkEndTimeBeforeRefreshUs = C.TIME_UNSET;
}
 

public MediaPreparer(MediaSource mediaSource, DownloadHelper downloadHelper) {
  this.mediaSource = mediaSource;
  this.downloadHelper = downloadHelper;
  allocator = new DefaultAllocator(true, C.DEFAULT_BUFFER_SEGMENT_SIZE);
  pendingMediaPeriods = new ArrayList<>();
  @SuppressWarnings("methodref.receiver.bound.invalid")
  Handler downloadThreadHandler = Util.createHandler(this::handleDownloadHelperCallbackMessage);
  this.downloadHelperHandler = downloadThreadHandler;
  mediaSourceThread = new HandlerThread("DownloadHelper");
  mediaSourceThread.start();
  mediaSourceHandler = Util.createHandler(mediaSourceThread.getLooper(), /* callback= */ this);
  mediaSourceHandler.sendEmptyMessage(MESSAGE_PREPARE_SOURCE);
}