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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #include "media/video/capture/screen/screen_capture_frame_queue.h" | 5 #include "media/video/capture/screen/screen_capture_frame_queue.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
10 #include "media/video/capture/screen/screen_capture_frame.h" | 10 #include "base/logging.h" |
| 11 #include "base/threading/non_thread_safe.h" |
| 12 #include "media/video/capture/screen/shared_desktop_frame.h" |
| 13 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h" |
11 | 14 |
12 namespace media { | 15 namespace media { |
13 | 16 |
14 ScreenCaptureFrameQueue::ScreenCaptureFrameQueue() | 17 ScreenCaptureFrameQueue::ScreenCaptureFrameQueue() : current_(0) {} |
15 : current_(0), | |
16 previous_(NULL) { | |
17 SetAllFramesNeedUpdate(); | |
18 } | |
19 | 18 |
20 ScreenCaptureFrameQueue::~ScreenCaptureFrameQueue() { | 19 ScreenCaptureFrameQueue::~ScreenCaptureFrameQueue() {} |
21 } | |
22 | 20 |
23 void ScreenCaptureFrameQueue::DoneWithCurrentFrame() { | 21 void ScreenCaptureFrameQueue::MoveToNextFrame() { |
24 previous_ = current_frame(); | |
25 current_ = (current_ + 1) % kQueueLength; | 22 current_ = (current_ + 1) % kQueueLength; |
| 23 |
| 24 // Verify that the frame is not shared, i.e. that consumer has released it |
| 25 // before attempting to capture again. |
| 26 DCHECK(!frames_[current_] || !frames_[current_]->IsShared()); |
26 } | 27 } |
27 | 28 |
28 void ScreenCaptureFrameQueue::ReplaceCurrentFrame( | 29 void ScreenCaptureFrameQueue::ReplaceCurrentFrame( |
29 scoped_ptr<ScreenCaptureFrame> frame) { | 30 scoped_ptr<webrtc::DesktopFrame> frame) { |
30 frames_[current_] = frame.Pass(); | 31 frames_[current_].reset(SharedDesktopFrame::Wrap(frame.release())); |
31 needs_update_[current_] = false; | |
32 } | 32 } |
33 | 33 |
34 void ScreenCaptureFrameQueue::SetAllFramesNeedUpdate() { | 34 void ScreenCaptureFrameQueue::Reset() { |
35 std::fill(needs_update_, needs_update_ + arraysize(needs_update_), true); | 35 for (int i = 0; i < kQueueLength; ++i) |
36 previous_ = NULL; | 36 frames_[i].reset(); |
37 } | 37 } |
38 | 38 |
39 } // namespace media | 39 } // namespace media |
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