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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 #ifndef REMOTING_HOST_VIDEO_SCHEDULER_H_ | 5 #ifndef REMOTING_HOST_VIDEO_SCHEDULER_H_ |
6 #define REMOTING_HOST_VIDEO_SCHEDULER_H_ | 6 #define REMOTING_HOST_VIDEO_SCHEDULER_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
12 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
13 #include "base/time/time.h" | 13 #include "base/time/time.h" |
14 #include "base/timer/timer.h" | 14 #include "base/timer/timer.h" |
15 #include "remoting/codec/video_encoder.h" | 15 #include "remoting/codec/video_encoder.h" |
16 #include "remoting/host/capture_scheduler.h" | 16 #include "remoting/host/capture_scheduler.h" |
17 #include "remoting/proto/video.pb.h" | 17 #include "remoting/proto/video.pb.h" |
18 #include "third_party/skia/include/core/SkSize.h" | 18 #include "third_party/skia/include/core/SkSize.h" |
| 19 #include "third_party/webrtc/modules/desktop_capture/mouse_cursor_monitor.h" |
19 #include "third_party/webrtc/modules/desktop_capture/screen_capturer.h" | 20 #include "third_party/webrtc/modules/desktop_capture/screen_capturer.h" |
20 | 21 |
21 namespace base { | 22 namespace base { |
22 class SingleThreadTaskRunner; | 23 class SingleThreadTaskRunner; |
23 } // namespace base | 24 } // namespace base |
24 | 25 |
25 namespace media { | 26 namespace media { |
26 class ScreenCapturer; | 27 class ScreenCapturer; |
27 } // namespace media | 28 } // namespace media |
28 | 29 |
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68 // | Time | 69 // | Time |
69 // v | 70 // v |
70 // | 71 // |
71 // VideoScheduler would ideally schedule captures so as to saturate the slowest | 72 // VideoScheduler would ideally schedule captures so as to saturate the slowest |
72 // of the capture, encode and network processes. However, it also needs to | 73 // of the capture, encode and network processes. However, it also needs to |
73 // rate-limit captures to avoid overloading the host system, either by consuming | 74 // rate-limit captures to avoid overloading the host system, either by consuming |
74 // too much CPU, or hogging the host's graphics subsystem. | 75 // too much CPU, or hogging the host's graphics subsystem. |
75 | 76 |
76 class VideoScheduler : public base::RefCountedThreadSafe<VideoScheduler>, | 77 class VideoScheduler : public base::RefCountedThreadSafe<VideoScheduler>, |
77 public webrtc::DesktopCapturer::Callback, | 78 public webrtc::DesktopCapturer::Callback, |
78 public webrtc::ScreenCapturer::MouseShapeObserver { | 79 public webrtc::MouseCursorMonitor::Callback { |
79 public: | 80 public: |
80 // Creates a VideoScheduler running capture, encode and network tasks on the | 81 // Creates a VideoScheduler running capture, encode and network tasks on the |
81 // supplied TaskRunners. Video and cursor shape updates will be pumped to | 82 // supplied TaskRunners. Video and cursor shape updates will be pumped to |
82 // |video_stub| and |client_stub|, which must remain valid until Stop() is | 83 // |video_stub| and |client_stub|, which must remain valid until Stop() is |
83 // called. |capturer| is used to capture frames. | 84 // called. |capturer| is used to capture frames. |
84 VideoScheduler( | 85 VideoScheduler( |
85 scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner, | 86 scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner, |
86 scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner, | 87 scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner, |
87 scoped_refptr<base::SingleThreadTaskRunner> network_task_runner, | 88 scoped_refptr<base::SingleThreadTaskRunner> network_task_runner, |
88 scoped_ptr<webrtc::ScreenCapturer> capturer, | 89 scoped_ptr<webrtc::ScreenCapturer> capturer, |
| 90 scoped_ptr<webrtc::MouseCursorMonitor> mouse_cursor_monitor, |
89 scoped_ptr<VideoEncoder> encoder, | 91 scoped_ptr<VideoEncoder> encoder, |
90 protocol::CursorShapeStub* cursor_stub, | 92 protocol::CursorShapeStub* cursor_stub, |
91 protocol::VideoStub* video_stub); | 93 protocol::VideoStub* video_stub); |
92 | 94 |
93 // webrtc::DesktopCapturer::Callback implementation. | 95 // webrtc::DesktopCapturer::Callback implementation. |
94 virtual webrtc::SharedMemory* CreateSharedMemory(size_t size) OVERRIDE; | 96 virtual webrtc::SharedMemory* CreateSharedMemory(size_t size) OVERRIDE; |
95 virtual void OnCaptureCompleted(webrtc::DesktopFrame* frame) OVERRIDE; | 97 virtual void OnCaptureCompleted(webrtc::DesktopFrame* frame) OVERRIDE; |
96 | 98 |
97 // webrtc::ScreenCapturer::MouseShapeObserver implementation. | 99 // webrtc::MouseCursorMonitor::Callback implementation. |
98 virtual void OnCursorShapeChanged( | 100 virtual void OnMouseCursor( |
99 webrtc::MouseCursorShape* cursor_shape) OVERRIDE; | 101 webrtc::MouseCursor* mouse_cursor) OVERRIDE; |
| 102 virtual void OnMouseCursorPosition( |
| 103 webrtc::MouseCursorMonitor::CursorState state, |
| 104 const webrtc::DesktopVector& position) OVERRIDE; |
100 | 105 |
101 // Starts scheduling frame captures. | 106 // Starts scheduling frame captures. |
102 void Start(); | 107 void Start(); |
103 | 108 |
104 // Stop scheduling frame captures. This object cannot be re-used once | 109 // Stop scheduling frame captures. This object cannot be re-used once |
105 // it has been stopped. | 110 // it has been stopped. |
106 void Stop(); | 111 void Stop(); |
107 | 112 |
108 // Pauses or resumes scheduling of frame captures. Pausing/resuming captures | 113 // Pauses or resumes scheduling of frame captures. Pausing/resuming captures |
109 // only affects capture scheduling and does not stop/start the capturer. | 114 // only affects capture scheduling and does not stop/start the capturer. |
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156 scoped_ptr<VideoPacket> packet); | 161 scoped_ptr<VideoPacket> packet); |
157 | 162 |
158 // Task runners used by this class. | 163 // Task runners used by this class. |
159 scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner_; | 164 scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner_; |
160 scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner_; | 165 scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner_; |
161 scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_; | 166 scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_; |
162 | 167 |
163 // Used to capture frames. Always accessed on the capture thread. | 168 // Used to capture frames. Always accessed on the capture thread. |
164 scoped_ptr<webrtc::ScreenCapturer> capturer_; | 169 scoped_ptr<webrtc::ScreenCapturer> capturer_; |
165 | 170 |
| 171 // Used to capture mouse cursor shapes. Always accessed on the capture thread. |
| 172 scoped_ptr<webrtc::MouseCursorMonitor> mouse_cursor_monitor_; |
| 173 |
166 // Used to encode captured frames. Always accessed on the encode thread. | 174 // Used to encode captured frames. Always accessed on the encode thread. |
167 scoped_ptr<VideoEncoder> encoder_; | 175 scoped_ptr<VideoEncoder> encoder_; |
168 | 176 |
169 // Interfaces through which video frames and cursor shapes are passed to the | 177 // Interfaces through which video frames and cursor shapes are passed to the |
170 // client. These members are always accessed on the network thread. | 178 // client. These members are always accessed on the network thread. |
171 protocol::CursorShapeStub* cursor_stub_; | 179 protocol::CursorShapeStub* cursor_stub_; |
172 protocol::VideoStub* video_stub_; | 180 protocol::VideoStub* video_stub_; |
173 | 181 |
174 // Timer used to schedule CaptureNextFrame(). | 182 // Timer used to schedule CaptureNextFrame(). |
175 scoped_ptr<base::OneShotTimer<VideoScheduler> > capture_timer_; | 183 scoped_ptr<base::OneShotTimer<VideoScheduler> > capture_timer_; |
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193 | 201 |
194 // An object to schedule capturing. | 202 // An object to schedule capturing. |
195 CaptureScheduler scheduler_; | 203 CaptureScheduler scheduler_; |
196 | 204 |
197 DISALLOW_COPY_AND_ASSIGN(VideoScheduler); | 205 DISALLOW_COPY_AND_ASSIGN(VideoScheduler); |
198 }; | 206 }; |
199 | 207 |
200 } // namespace remoting | 208 } // namespace remoting |
201 | 209 |
202 #endif // REMOTING_HOST_VIDEO_SCHEDULER_H_ | 210 #endif // REMOTING_HOST_VIDEO_SCHEDULER_H_ |
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