1 files changed, 120 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/SingleSampleMediaChunk.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/SingleSampleMediaChunk.java
new file mode 100644
index 0000000000..b3d30408ee
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/SingleSampleMediaChunk.java
@@ -0,0 +1,120 @@
+/*
+ * 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 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.ExtractorInput;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.extractor.TrackOutput;
+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.Util;
+import java.io.IOException;
+
+/**
+ * A {@link BaseMediaChunk} for chunks consisting of a single raw sample.
+ */
+public final class SingleSampleMediaChunk extends BaseMediaChunk {
+
+  private final int trackType;
+  private final Format sampleFormat;
+
+  private long nextLoadPosition;
+  private boolean loadCompleted;
+
+  /**
+   * @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 startTimeUs The start time of the media contained by the chunk, in microseconds.
+   * @param endTimeUs The end time of the media contained by the chunk, in microseconds.
+   * @param chunkIndex The index of the chunk, or {@link C#INDEX_UNSET} if it is not known.
+   * @param trackType The type of the chunk. Typically one of the {@link C} {@code TRACK_TYPE_*}
+   *     constants.
+   * @param sampleFormat The {@link Format} of the sample in the chunk.
+   */
+  public SingleSampleMediaChunk(
+      DataSource dataSource,
+      DataSpec dataSpec,
+      Format trackFormat,
+      int trackSelectionReason,
+      Object trackSelectionData,
+      long startTimeUs,
+      long endTimeUs,
+      long chunkIndex,
+      int trackType,
+      Format sampleFormat) {
+    super(
+        dataSource,
+        dataSpec,
+        trackFormat,
+        trackSelectionReason,
+        trackSelectionData,
+        startTimeUs,
+        endTimeUs,
+        /* clippedStartTimeUs= */ C.TIME_UNSET,
+        /* clippedEndTimeUs= */ C.TIME_UNSET,
+        chunkIndex);
+    this.trackType = trackType;
+    this.sampleFormat = sampleFormat;
+  }
+
+
+  @Override
+  public boolean isLoadCompleted() {
+    return loadCompleted;
+  }
+
+  // Loadable implementation.
+
+  @Override
+  public void cancelLoad() {
+    // Do nothing.
+  }
+
+  @SuppressWarnings("NonAtomicVolatileUpdate")
+  @Override
+  public void load() throws IOException, InterruptedException {
+    BaseMediaChunkOutput output = getOutput();
+    output.setSampleOffsetUs(0);
+    TrackOutput trackOutput = output.track(0, trackType);
+    trackOutput.format(sampleFormat);
+    try {
+      // Create and open the input.
+      DataSpec loadDataSpec = dataSpec.subrange(nextLoadPosition);
+      long length = dataSource.open(loadDataSpec);
+      if (length != C.LENGTH_UNSET) {
+        length += nextLoadPosition;
+      }
+      ExtractorInput extractorInput =
+          new DefaultExtractorInput(dataSource, nextLoadPosition, length);
+      // Load the sample data.
+      int result = 0;
+      while (result != C.RESULT_END_OF_INPUT) {
+        nextLoadPosition += result;
+        result = trackOutput.sampleData(extractorInput, Integer.MAX_VALUE, true);
+      }
+      int sampleSize = (int) nextLoadPosition;
+      trackOutput.sampleMetadata(startTimeUs, C.BUFFER_FLAG_KEY_FRAME, sampleSize, 0, null);
+    } finally {
+      Util.closeQuietly(dataSource);
+    }
+    loadCompleted = true;
+  }
+}