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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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_FRAME_PUMP_H_ | 5 #ifndef REMOTING_HOST_VIDEO_FRAME_PUMP_H_ |
6 #define REMOTING_HOST_VIDEO_FRAME_PUMP_H_ | 6 #define REMOTING_HOST_VIDEO_FRAME_PUMP_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
11 #include "base/threading/non_thread_safe.h" | 11 #include "base/threading/non_thread_safe.h" |
12 #include "base/time/time.h" | 12 #include "base/time/time.h" |
13 #include "base/timer/timer.h" | 13 #include "base/timer/timer.h" |
14 #include "remoting/codec/video_encoder.h" | 14 #include "remoting/codec/video_encoder.h" |
15 #include "remoting/host/capture_scheduler.h" | 15 #include "remoting/host/capture_scheduler.h" |
16 #include "remoting/proto/video.pb.h" | 16 #include "remoting/proto/video.pb.h" |
17 | 17 |
18 namespace base { | 18 namespace base { |
19 class SingleThreadTaskRunner; | 19 class SingleThreadTaskRunner; |
20 } // namespace base | 20 } // namespace base |
21 | 21 |
22 namespace remoting { | 22 namespace remoting { |
23 | 23 |
24 class ScreenCapturerProxy; | 24 class ScreenCapturerProxy; |
25 | 25 |
26 namespace protocol { | 26 namespace protocol { |
| 27 class VideoFeedbackStub; |
27 class VideoStub; | 28 class VideoStub; |
28 } // namespace protocol | 29 } // namespace protocol |
29 | 30 |
30 // Class responsible for scheduling frame captures from a screen capturer., | 31 // Class responsible for scheduling frame captures from a screen capturer., |
31 // delivering them to a VideoEncoder to encode, and | 32 // delivering them to a VideoEncoder to encode, and |
32 // finally passing the encoded video packets to the specified VideoStub to send | 33 // finally passing the encoded video packets to the specified VideoStub to send |
33 // on the network. | 34 // on the network. |
34 // | 35 // |
35 // THREADING | 36 // THREADING |
36 // | 37 // |
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85 | 86 |
86 // Updates event timestamp from the last event received from the client. This | 87 // Updates event timestamp from the last event received from the client. This |
87 // value is sent back to the client for roundtrip latency estimates. | 88 // value is sent back to the client for roundtrip latency estimates. |
88 void SetLatestEventTimestamp(int64 latest_event_timestamp); | 89 void SetLatestEventTimestamp(int64 latest_event_timestamp); |
89 | 90 |
90 // Sets whether the video encoder should be requested to encode losslessly, | 91 // Sets whether the video encoder should be requested to encode losslessly, |
91 // or to use a lossless color space (typically requiring higher bandwidth). | 92 // or to use a lossless color space (typically requiring higher bandwidth). |
92 void SetLosslessEncode(bool want_lossless); | 93 void SetLosslessEncode(bool want_lossless); |
93 void SetLosslessColor(bool want_lossless); | 94 void SetLosslessColor(bool want_lossless); |
94 | 95 |
| 96 protocol::VideoFeedbackStub* video_feedback_stub() { |
| 97 return &capture_scheduler_; |
| 98 } |
| 99 |
95 private: | 100 private: |
96 // Encodes and sends |frame|. | 101 // Encodes and sends |frame|. |
97 void EncodeAndSendFrame(scoped_ptr<webrtc::DesktopFrame> frame); | 102 void EncodeAndSendFrame(scoped_ptr<webrtc::DesktopFrame> frame); |
98 | 103 |
99 // Sends encoded frame | 104 // Sends encoded frame |
100 void SendEncodedFrame(int64 latest_event_timestamp, | 105 void SendEncodedFrame(int64 latest_event_timestamp, |
101 base::TimeTicks timestamp, | 106 base::TimeTicks timestamp, |
102 scoped_ptr<VideoPacket> packet); | 107 scoped_ptr<VideoPacket> packet); |
103 | 108 |
104 // Callback passed to |video_stub_| for the last packet in each frame, to | 109 // Callback passed to |video_stub_|. |
105 // rate-limit frame captures to network throughput. | |
106 void OnVideoPacketSent(); | 110 void OnVideoPacketSent(); |
107 | 111 |
108 // Called by |keep_alive_timer_|. | 112 // Called by |keep_alive_timer_|. |
109 void SendKeepAlivePacket(); | 113 void SendKeepAlivePacket(); |
110 | 114 |
111 // Callback for |video_stub_| called after a keep-alive packet is sent. | 115 // Callback for |video_stub_| called after a keep-alive packet is sent. |
112 void OnKeepAlivePacketSent(); | 116 void OnKeepAlivePacketSent(); |
113 | 117 |
114 // Task runners used to run |encoder_|. | 118 // Task runners used to run |encoder_|. |
115 scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner_; | 119 scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner_; |
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132 int64 latest_event_timestamp_; | 136 int64 latest_event_timestamp_; |
133 | 137 |
134 base::WeakPtrFactory<VideoFramePump> weak_factory_; | 138 base::WeakPtrFactory<VideoFramePump> weak_factory_; |
135 | 139 |
136 DISALLOW_COPY_AND_ASSIGN(VideoFramePump); | 140 DISALLOW_COPY_AND_ASSIGN(VideoFramePump); |
137 }; | 141 }; |
138 | 142 |
139 } // namespace remoting | 143 } // namespace remoting |
140 | 144 |
141 #endif // REMOTING_HOST_VIDEO_FRAME_PUMP_H_ | 145 #endif // REMOTING_HOST_VIDEO_FRAME_PUMP_H_ |
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