Render inband text tracks in the media pipeline

media/base/text_cue.h

+// Copyright 2013 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_TEXT_CUE_H_
+#define MEDIA_BASE_TEXT_CUE_H_
+
+#include <string>
+
+#include "base/memory/ref_counted.h"
+#include "base/time/time.h"
+#include "media/base/media_export.h"
+
+namespace media {
+
+// A text buffer to carry the components of a text track cue.
+class MEDIA_EXPORT TextCue
+    : public base::RefCountedThreadSafe<TextCue> {
+ public:
+  TextCue(const base::TimeDelta& timestamp,
+          const base::TimeDelta& duration,
+          const std::string& id,
+          const std::string& settings,
+          const std::string& text);
+
+  // Access to constructor parameters.
+  base::TimeDelta timestamp() const { return timestamp_; }
+  base::TimeDelta duration() const { return duration_; }
+  const std::string& id() const { return id_; }
+  const std::string& settings() const { return settings_; }
+  const std::string& text() const { return text_; }
+
+ private:
+  friend class base::RefCountedThreadSafe<TextCue>;
+  ~TextCue();
+
+  base::TimeDelta timestamp_;
+  base::TimeDelta duration_;
+  std::string id_;
+  std::string settings_;
+  std::string text_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(TextCue);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_TEXT_CUE_H_