Checking in media::DataBuffer, a simple implementation of WritableBufferInterface.

media/base/data_buffer.h

+// Copyright (c) 2006-2008 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.
+
+// A simple implementation of WritableBufferInterface that takes ownership of
+// the given data pointer.
+//
+// DataBuffer assumes that memory was allocated with new char[].
+
+#ifndef MEDIA_BASE_DATA_BUFFER_H_
+#define MEDIA_BASE_DATA_BUFFER_H_
+
+#include "media/base/buffers.h"
+
+namespace media {
+
+class DataBuffer : public WritableBufferInterface {
+ public:
+  DataBuffer(char* data, size_t buffer_size, size_t data_size,
+             int64 timestamp, int64 duration);
+
+  // StreamSampleInterface
+  virtual int64 GetTimestamp() const;
+  virtual void SetTimestamp(int64 timestamp);
+  virtual int64 GetDuration() const;
+  virtual void SetDuration(int64 duration);
+
+  // BufferInterface
+  virtual const char* GetData() const;
+  virtual size_t GetDataSize() const;
+
+  // WritableBufferInterface
+  virtual char* GetWritableData();
+  virtual size_t GetBufferSize() const;
+  virtual void SetDataSize(size_t data_size);
+
+ protected:
+  virtual ~DataBuffer();
+
+ private:
+  char* data_;
+  size_t buffer_size_;
+  size_t data_size_;
+  int64 timestamp_;
+  int64 duration_;
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_DATA_BUFFER_H_