Basic media tracks implementation for media stream parsers

media/base/media_track.h

Index: media/base/media_track.h
diff --git a/media/base/media_track.h b/media/base/media_track.h
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+++ b/media/base/media_track.h
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+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_BASE_MEDIA_TRACK_H_
+#define MEDIA_BASE_MEDIA_TRACK_H_
+
+#include <string>
+
+#include "media/base/media_export.h"
+
+namespace media {
+
+class MEDIA_EXPORT MediaTrack {
+ public:
+  enum Type { Text, Audio, Video };
+  MediaTrack(Type type,
+             const std::string& id,
+             const std::string& kind,
+             const std::string& label,
+             const std::string& lang);
+  ~MediaTrack();
+
+  Type type() const { return type_; }
+
+  const std::string& id() const { return id_; }
+  const std::string& kind() const { return kind_; }
+  const std::string& label() const { return label_; }
+  const std::string& language() const { return language_; }
+
+ private:
+  Type type_;
+  std::string id_;
+  std::string kind_;
+  std::string label_;
+  std::string language_;
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_MEDIA_TRACK_H_