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1 /* | |
2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #ifndef WEBRTC_COMMON_VIDEO_INCLUDE_I420_BUFFER_POOL_H_ | |
12 #define WEBRTC_COMMON_VIDEO_INCLUDE_I420_BUFFER_POOL_H_ | |
13 | |
14 #pragma message("WARNING: common_video/include is DEPRECATED; use common_video/i
nclude") | |
15 | |
16 #include <list> | |
17 | |
18 #include "webrtc/base/thread_checker.h" | |
19 #include "webrtc/common_video/include/video_frame_buffer.h" | |
20 | |
21 namespace webrtc { | |
22 | |
23 // Simple buffer pool to avoid unnecessary allocations of I420Buffer objects. | |
24 // The pool manages the memory of the I420Buffer returned from CreateBuffer. | |
25 // When the I420Buffer is destructed, the memory is returned to the pool for use | |
26 // by subsequent calls to CreateBuffer. If the resolution passed to CreateBuffer | |
27 // changes, old buffers will be purged from the pool. | |
28 class I420BufferPool { | |
29 public: | |
30 I420BufferPool(); | |
31 // Returns a buffer from the pool, or creates a new buffer if no suitable | |
32 // buffer exists in the pool. | |
33 rtc::scoped_refptr<VideoFrameBuffer> CreateBuffer(int width, int height); | |
34 // Clears buffers_ and detaches the thread checker so that it can be reused | |
35 // later from another thread. | |
36 void Release(); | |
37 | |
38 private: | |
39 rtc::ThreadChecker thread_checker_; | |
40 std::list<rtc::scoped_refptr<I420Buffer>> buffers_; | |
41 }; | |
42 | |
43 } // namespace webrtc | |
44 | |
45 #endif // WEBRTC_COMMON_VIDEO_INCLUDE_I420_BUFFER_POOL_H_ | |
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