1 files changed, 97 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/hls/HlsSampleStream.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/hls/HlsSampleStream.java
new file mode 100644
index 0000000000..5f44810af5
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/hls/HlsSampleStream.java
@@ -0,0 +1,97 @@
+/*
+ * 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.hls;
+
+import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.FormatHolder;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.decoder.DecoderInputBuffer;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.source.SampleStream;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Assertions;
+import java.io.IOException;
+
+/**
+ * {@link SampleStream} for a particular sample queue in HLS.
+ */
+/* package */ final class HlsSampleStream implements SampleStream {
+
+  private final int trackGroupIndex;
+  private final HlsSampleStreamWrapper sampleStreamWrapper;
+  private int sampleQueueIndex;
+
+  public HlsSampleStream(HlsSampleStreamWrapper sampleStreamWrapper, int trackGroupIndex) {
+    this.sampleStreamWrapper = sampleStreamWrapper;
+    this.trackGroupIndex = trackGroupIndex;
+    sampleQueueIndex = HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_PENDING;
+  }
+
+  public void bindSampleQueue() {
+    Assertions.checkArgument(sampleQueueIndex == HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_PENDING);
+    sampleQueueIndex = sampleStreamWrapper.bindSampleQueueToSampleStream(trackGroupIndex);
+  }
+
+  public void unbindSampleQueue() {
+    if (sampleQueueIndex != HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_PENDING) {
+      sampleStreamWrapper.unbindSampleQueue(trackGroupIndex);
+      sampleQueueIndex = HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_PENDING;
+    }
+  }
+
+  // SampleStream implementation.
+
+  @Override
+  public boolean isReady() {
+    return sampleQueueIndex == HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_NO_MAPPING_NON_FATAL
+        || (hasValidSampleQueueIndex() && sampleStreamWrapper.isReady(sampleQueueIndex));
+  }
+
+  @Override
+  public void maybeThrowError() throws IOException {
+    if (sampleQueueIndex == HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_NO_MAPPING_FATAL) {
+      throw new SampleQueueMappingException(
+          sampleStreamWrapper.getTrackGroups().get(trackGroupIndex).getFormat(0).sampleMimeType);
+    } else if (sampleQueueIndex == HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_PENDING) {
+      sampleStreamWrapper.maybeThrowError();
+    } else if (sampleQueueIndex != HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_NO_MAPPING_NON_FATAL) {
+      sampleStreamWrapper.maybeThrowError(sampleQueueIndex);
+    }
+  }
+
+  @Override
+  public int readData(FormatHolder formatHolder, DecoderInputBuffer buffer, boolean requireFormat) {
+    if (sampleQueueIndex == HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_NO_MAPPING_NON_FATAL) {
+      buffer.addFlag(C.BUFFER_FLAG_END_OF_STREAM);
+      return C.RESULT_BUFFER_READ;
+    }
+    return hasValidSampleQueueIndex()
+        ? sampleStreamWrapper.readData(sampleQueueIndex, formatHolder, buffer, requireFormat)
+        : C.RESULT_NOTHING_READ;
+  }
+
+  @Override
+  public int skipData(long positionUs) {
+    return hasValidSampleQueueIndex()
+        ? sampleStreamWrapper.skipData(sampleQueueIndex, positionUs)
+        : 0;
+  }
+
+  // Internal methods.
+
+  private boolean hasValidSampleQueueIndex() {
+    return sampleQueueIndex != HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_PENDING
+        && sampleQueueIndex != HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_NO_MAPPING_NON_FATAL
+        && sampleQueueIndex != HlsSampleStreamWrapper.SAMPLE_QUEUE_INDEX_NO_MAPPING_FATAL;
+  }
+}