Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 112 insertions, 0 deletions

diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/InitializationChunk.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/InitializationChunk.java
new file mode 100644
index 0000000000..db6e82c2c7
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/InitializationChunk.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.mozilla.thirdparty.com.google.android.exoplayer2.source.chunk;
+
+import androidx.annotation.Nullable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.Format;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.extractor.DefaultExtractorInput;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.extractor.Extractor;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.extractor.ExtractorInput;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.extractor.PositionHolder;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.source.chunk.ChunkExtractorWrapper.TrackOutputProvider;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.DataSource;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.DataSpec;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Assertions;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Util;
+import java.io.IOException;
+import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
+
+/**
+ * A {@link Chunk} that uses an {@link Extractor} to decode initialization data for single track.
+ */
+public final class InitializationChunk extends Chunk {
+
+  private static final PositionHolder DUMMY_POSITION_HOLDER = new PositionHolder();
+
+  private final ChunkExtractorWrapper extractorWrapper;
+
+  @MonotonicNonNull private TrackOutputProvider trackOutputProvider;
+  private long nextLoadPosition;
+  private volatile boolean loadCanceled;
+
+  /**
+   * @param dataSource The source from which the data should be loaded.
+   * @param dataSpec Defines the data to be loaded.
+   * @param trackFormat See {@link #trackFormat}.
+   * @param trackSelectionReason See {@link #trackSelectionReason}.
+   * @param trackSelectionData See {@link #trackSelectionData}.
+   * @param extractorWrapper A wrapped extractor to use for parsing the initialization data.
+   */
+  public InitializationChunk(
+      DataSource dataSource,
+      DataSpec dataSpec,
+      Format trackFormat,
+      int trackSelectionReason,
+      @Nullable Object trackSelectionData,
+      ChunkExtractorWrapper extractorWrapper) {
+    super(dataSource, dataSpec, C.DATA_TYPE_MEDIA_INITIALIZATION, trackFormat, trackSelectionReason,
+        trackSelectionData, C.TIME_UNSET, C.TIME_UNSET);
+    this.extractorWrapper = extractorWrapper;
+  }
+
+  /**
+   * Initializes the chunk for loading, setting a {@link TrackOutputProvider} for track outputs to
+   * which formats will be written as they are loaded.
+   *
+   * @param trackOutputProvider The {@link TrackOutputProvider} for track outputs to which formats
+   *     will be written as they are loaded.
+   */
+  public void init(TrackOutputProvider trackOutputProvider) {
+    this.trackOutputProvider = trackOutputProvider;
+  }
+
+  // Loadable implementation.
+
+  @Override
+  public void cancelLoad() {
+    loadCanceled = true;
+  }
+
+  @SuppressWarnings("NonAtomicVolatileUpdate")
+  @Override
+  public void load() throws IOException, InterruptedException {
+    if (nextLoadPosition == 0) {
+      extractorWrapper.init(
+          trackOutputProvider, /* startTimeUs= */ C.TIME_UNSET, /* endTimeUs= */ C.TIME_UNSET);
+    }
+    try {
+      // Create and open the input.
+      DataSpec loadDataSpec = dataSpec.subrange(nextLoadPosition);
+      ExtractorInput input =
+          new DefaultExtractorInput(
+              dataSource, loadDataSpec.absoluteStreamPosition, dataSource.open(loadDataSpec));
+      // Load and decode the initialization data.
+      try {
+        Extractor extractor = extractorWrapper.extractor;
+        int result = Extractor.RESULT_CONTINUE;
+        while (result == Extractor.RESULT_CONTINUE && !loadCanceled) {
+          result = extractor.read(input, DUMMY_POSITION_HOLDER);
+        }
+        Assertions.checkState(result != Extractor.RESULT_SEEK);
+      } finally {
+        nextLoadPosition = input.getPosition() - dataSpec.absoluteStreamPosition;
+      }
+    } finally {
+      Util.closeQuietly(dataSource);
+    }
+  }
+}