byte_queue.h

// Copyright (c) 2012 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 PACKAGER_MEDIA_BASE_BYTE_QUEUE_H_
#define PACKAGER_MEDIA_BASE_BYTE_QUEUE_H_
 
#include <cstddef>
#include <cstdint>
#include <memory>
 
#include <packager/macros/classes.h>
 
namespace shaka {
namespace media {
 
class ByteQueue {
 public:
  ByteQueue();
  ~ByteQueue();
 
  void Reset();
 
  void Push(const uint8_t* data, int size);
 
  void Peek(const uint8_t** data, int* size) const;
 
  void Pop(int count);
 
 private:
  // Returns a pointer to the front of the queue.
  uint8_t* front() const;
 
  std::unique_ptr<uint8_t[]> buffer_;
 
  // Size of |buffer_|.
  size_t size_;
 
  // Offset from the start of |buffer_| that marks the front of the queue.
  size_t offset_;
 
  // Number of bytes stored in the queue.
  int used_;
 
  DISALLOW_COPY_AND_ASSIGN(ByteQueue);
};
 
}  // namespace media
}  // namespace shaka
 
#endif  // PACKAGER_MEDIA_BASE_BYTE_QUEUE_H_