1 files changed, 93 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/metadata/scte35/TimeSignalCommand.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/metadata/scte35/TimeSignalCommand.java
new file mode 100644
index 0000000000..f50a029f1b
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/metadata/scte35/TimeSignalCommand.java
@@ -0,0 +1,93 @@
+/*
+ * 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.metadata.scte35;
+
+import android.os.Parcel;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.util.ParsableByteArray;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.util.TimestampAdjuster;
+
+/**
+ * Represents a time signal command as defined in SCTE35, Section 9.3.4.
+ */
+public final class TimeSignalCommand extends SpliceCommand {
+
+  /**
+   * A PTS value, as defined in SCTE35, Section 9.3.4.
+   */
+  public final long ptsTime;
+  /**
+   * Equivalent to {@link #ptsTime} but in the playback timebase.
+   */
+  public final long playbackPositionUs;
+
+  private TimeSignalCommand(long ptsTime, long playbackPositionUs) {
+    this.ptsTime = ptsTime;
+    this.playbackPositionUs = playbackPositionUs;
+  }
+
+  /* package */ static TimeSignalCommand parseFromSection(ParsableByteArray sectionData,
+      long ptsAdjustment, TimestampAdjuster timestampAdjuster) {
+    long ptsTime = parseSpliceTime(sectionData, ptsAdjustment);
+    long playbackPositionUs = timestampAdjuster.adjustTsTimestamp(ptsTime);
+    return new TimeSignalCommand(ptsTime, playbackPositionUs);
+  }
+
+  /**
+   * Parses pts_time from splice_time(), defined in Section 9.4.1. Returns {@link C#TIME_UNSET}, if
+   * time_specified_flag is false.
+   *
+   * @param sectionData The section data from which the pts_time is parsed.
+   * @param ptsAdjustment The pts adjustment provided by the splice info section header.
+   * @return The pts_time defined by splice_time(), or {@link C#TIME_UNSET}, if time_specified_flag
+   *     is false.
+   */
+  /* package */ static long parseSpliceTime(ParsableByteArray sectionData, long ptsAdjustment) {
+    long firstByte = sectionData.readUnsignedByte();
+    long ptsTime = C.TIME_UNSET;
+    if ((firstByte & 0x80) != 0 /* time_specified_flag */) {
+      // See SCTE35 9.2.1 for more information about pts adjustment.
+      ptsTime = (firstByte & 0x01) << 32 | sectionData.readUnsignedInt();
+      ptsTime += ptsAdjustment;
+      ptsTime &= 0x1FFFFFFFFL;
+    }
+    return ptsTime;
+  }
+
+  // Parcelable implementation.
+
+  @Override
+  public void writeToParcel(Parcel dest, int flags) {
+    dest.writeLong(ptsTime);
+    dest.writeLong(playbackPositionUs);
+  }
+
+  public static final Creator<TimeSignalCommand> CREATOR =
+      new Creator<TimeSignalCommand>() {
+
+    @Override
+    public TimeSignalCommand createFromParcel(Parcel in) {
+      return new TimeSignalCommand(in.readLong(), in.readLong());
+    }
+
+    @Override
+    public TimeSignalCommand[] newArray(int size) {
+      return new TimeSignalCommand[size];
+    }
+
+  };
+
+}