1 files changed, 64 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/video/DolbyVisionConfig.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/video/DolbyVisionConfig.java
new file mode 100644
index 0000000000..bfc1f814d2
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/video/DolbyVisionConfig.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2019 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.video;
+
+import androidx.annotation.Nullable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.util.ParsableByteArray;
+
+/** Dolby Vision configuration data. */
+public final class DolbyVisionConfig {
+
+  /**
+   * Parses Dolby Vision configuration data.
+   *
+   * @param data A {@link ParsableByteArray}, whose position is set to the start of the Dolby Vision
+   *     configuration data to parse.
+   * @return The {@link DolbyVisionConfig} corresponding to the configuration, or {@code null} if
+   *     the configuration isn't supported.
+   */
+  @Nullable
+  public static DolbyVisionConfig parse(ParsableByteArray data) {
+    data.skipBytes(2); // dv_version_major, dv_version_minor
+    int profileData = data.readUnsignedByte();
+    int dvProfile = (profileData >> 1);
+    int dvLevel = ((profileData & 0x1) << 5) | ((data.readUnsignedByte() >> 3) & 0x1F);
+    String codecsPrefix;
+    if (dvProfile == 4 || dvProfile == 5 || dvProfile == 7) {
+      codecsPrefix = "dvhe";
+    } else if (dvProfile == 8) {
+      codecsPrefix = "hev1";
+    } else if (dvProfile == 9) {
+      codecsPrefix = "avc3";
+    } else {
+      return null;
+    }
+    String codecs = codecsPrefix + ".0" + dvProfile + ".0" + dvLevel;
+    return new DolbyVisionConfig(dvProfile, dvLevel, codecs);
+  }
+
+  /** The profile number. */
+  public final int profile;
+  /** The level number. */
+  public final int level;
+  /** The RFC 6381 codecs string. */
+  public final String codecs;
+
+  private DolbyVisionConfig(int profile, int level, String codecs) {
+    this.profile = profile;
+    this.level = level;
+    this.codecs = codecs;
+  }
+}