OLD | NEW |
1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_BASE_BYTE_QUEUE_H_ | 5 #ifndef MEDIA_BASE_BYTE_QUEUE_H_ |
6 #define MEDIA_BASE_BYTE_QUEUE_H_ | 6 #define MEDIA_BASE_BYTE_QUEUE_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
| 10 #include "media/base/media_export.h" |
10 | 11 |
11 namespace media { | 12 namespace media { |
12 | 13 |
13 // Represents a queue of bytes. | 14 // Represents a queue of bytes. |
14 // Data is added to the end of the queue via an Push() call and removed via | 15 // Data is added to the end of the queue via an Push() call and removed via |
15 // Pop(). The contents of the queue can be observed via the Peek() method. | 16 // Pop(). The contents of the queue can be observed via the Peek() method. |
16 // This class manages the underlying storage of the queue and tries to minimize | 17 // This class manages the underlying storage of the queue and tries to minimize |
17 // the number of buffer copies when data is appended and removed. | 18 // the number of buffer copies when data is appended and removed. |
18 class ByteQueue { | 19 class MEDIA_EXPORT ByteQueue { |
19 public: | 20 public: |
20 ByteQueue(); | 21 ByteQueue(); |
21 ~ByteQueue(); | 22 ~ByteQueue(); |
22 | 23 |
23 // Reset the queue to the empty state. | 24 // Reset the queue to the empty state. |
24 void Reset(); | 25 void Reset(); |
25 | 26 |
26 // Appends new bytes onto the end of the queue. | 27 // Appends new bytes onto the end of the queue. |
27 void Push(const uint8* data, int size); | 28 void Push(const uint8* data, int size); |
28 | 29 |
(...skipping 19 matching lines...) Expand all Loading... |
48 | 49 |
49 // Number of bytes stored in the queue. | 50 // Number of bytes stored in the queue. |
50 int used_; | 51 int used_; |
51 | 52 |
52 DISALLOW_COPY_AND_ASSIGN(ByteQueue); | 53 DISALLOW_COPY_AND_ASSIGN(ByteQueue); |
53 }; | 54 }; |
54 | 55 |
55 } // namespace media | 56 } // namespace media |
56 | 57 |
57 #endif // MEDIA_BASE_BYTE_QUEUE_H_ | 58 #endif // MEDIA_BASE_BYTE_QUEUE_H_ |
OLD | NEW |