media/cdm/cdm_buffer_impl.h

// Copyright 2015 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_CDM_CDM_BUFFER_IMPL_H_
#define MEDIA_CDM_CDM_BUFFER_IMPL_H_

#include <stdint.h>

#include <vector>

#include "base/macros.h"
#include "media/cdm/api/content_decryption_module.h"

namespace media {

// cdm::Buffer implementation that provides access to memory. This is a simple
// implementation that stores the data in a std::vector<uint8_t>.
class CdmBuffer : public cdm::Buffer {
 public:
  static CdmBuffer* Create(uint32_t capacity);

  // cdm::Buffer implementation.
  void Destroy() final;
  uint32_t Capacity() const final;
  uint8_t* Data() final;
  void SetSize(uint32_t size) final;
  uint32_t Size() const final;

 private:
  CdmBuffer(uint32_t capacity);
  ~CdmBuffer() final;

  std::vector<uint8_t> buffer_;
  uint32_t size_;

  DISALLOW_COPY_AND_ASSIGN(CdmBuffer);
};

}  // namespace media

#endif