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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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_PROTOCOL_WEBRTC_FRAME_SCHEDULER_SIMPLE_H_ | 5 #ifndef REMOTING_PROTOCOL_WEBRTC_FRAME_SCHEDULER_SIMPLE_H_ |
6 #define REMOTING_PROTOCOL_WEBRTC_FRAME_SCHEDULER_SIMPLE_H_ | 6 #define REMOTING_PROTOCOL_WEBRTC_FRAME_SCHEDULER_SIMPLE_H_ |
7 | 7 |
8 #include "remoting/protocol/webrtc_frame_scheduler.h" | 8 #include "remoting/protocol/webrtc_frame_scheduler.h" |
9 | 9 |
10 #include <queue> | 10 #include <queue> |
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30 | 30 |
31 // VideoChannelStateObserver implementation. | 31 // VideoChannelStateObserver implementation. |
32 void OnKeyFrameRequested() override; | 32 void OnKeyFrameRequested() override; |
33 void OnChannelParameters(int packet_loss, base::TimeDelta rtt) override; | 33 void OnChannelParameters(int packet_loss, base::TimeDelta rtt) override; |
34 void OnTargetBitrateChanged(int bitrate_kbps) override; | 34 void OnTargetBitrateChanged(int bitrate_kbps) override; |
35 | 35 |
36 // WebrtcFrameScheduler implementation. | 36 // WebrtcFrameScheduler implementation. |
37 void Start(WebrtcDummyVideoEncoderFactory* video_encoder_factory, | 37 void Start(WebrtcDummyVideoEncoderFactory* video_encoder_factory, |
38 const base::Closure& capture_callback) override; | 38 const base::Closure& capture_callback) override; |
39 void Pause(bool pause) override; | 39 void Pause(bool pause) override; |
40 bool GetEncoderFrameParams( | 40 bool OnFrameCaptured(const webrtc::DesktopFrame* frame, |
41 const webrtc::DesktopFrame& frame, | 41 WebrtcVideoEncoder::FrameParams* params_out) override; |
42 WebrtcVideoEncoder::FrameParams* params_out) override; | 42 void OnFrameEncoded(const WebrtcVideoEncoder::EncodedFrame* encoded_frame, |
43 void OnFrameEncoded(const WebrtcVideoEncoder::EncodedFrame& encoded_frame, | |
44 const webrtc::EncodedImageCallback::Result& send_result, | |
45 HostFrameStats* frame_stats) override; | 43 HostFrameStats* frame_stats) override; |
46 | 44 |
47 private: | 45 private: |
48 // Helper class used to calculate target encoder bitrate. | 46 // Helper class used to calculate target encoder bitrate. |
49 class EncoderBitrateFilter { | 47 class EncoderBitrateFilter { |
50 public: | 48 public: |
51 EncoderBitrateFilter(); | 49 EncoderBitrateFilter(); |
52 ~EncoderBitrateFilter(); | 50 ~EncoderBitrateFilter(); |
53 | 51 |
54 void SetBandwidthEstimate(int bandwidth_kbps, base::TimeTicks now); | 52 void SetBandwidthEstimate(int bandwidth_kbps, base::TimeTicks now); |
55 int GetTargetBitrateKbps(webrtc::DesktopSize size, base::TimeTicks now); | 53 void SetFrameSize(webrtc::DesktopSize size); |
| 54 int GetTargetBitrateKbps() const; |
56 | 55 |
57 private: | 56 private: |
| 57 void UpdateTargetBitrate(); |
| 58 |
58 std::queue<std::pair<base::TimeTicks, int>> bandwidth_samples_; | 59 std::queue<std::pair<base::TimeTicks, int>> bandwidth_samples_; |
59 int bandwidth_samples_sum_ = 0; | 60 int bandwidth_samples_sum_ = 0; |
60 | 61 |
61 int current_target_bitrate_; | 62 int minimum_bitrate_ = 0; |
| 63 int current_target_bitrate_ = 0; |
62 }; | 64 }; |
63 | 65 |
64 void ScheduleNextFrame(base::TimeTicks now); | 66 void ScheduleNextFrame(base::TimeTicks now); |
65 void CaptureNextFrame(); | 67 void CaptureNextFrame(); |
66 | 68 |
67 base::Closure capture_callback_; | 69 base::Closure capture_callback_; |
68 bool paused_ = false; | 70 bool paused_ = false; |
69 bool key_frame_request_ = false; | 71 bool key_frame_request_ = false; |
70 | 72 |
71 base::TimeTicks last_capture_started_time_; | 73 base::TimeTicks last_capture_started_time_; |
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91 base::OneShotTimer capture_timer_; | 93 base::OneShotTimer capture_timer_; |
92 | 94 |
93 base::ThreadChecker thread_checker_; | 95 base::ThreadChecker thread_checker_; |
94 base::WeakPtrFactory<WebrtcFrameSchedulerSimple> weak_factory_; | 96 base::WeakPtrFactory<WebrtcFrameSchedulerSimple> weak_factory_; |
95 }; | 97 }; |
96 | 98 |
97 } // namespace protocol | 99 } // namespace protocol |
98 } // namespace remoting | 100 } // namespace remoting |
99 | 101 |
100 #endif // REMOTING_PROTOCOL_WEBRTC_FRAME_SCHEDULER_SIMPLE_H_ | 102 #endif // REMOTING_PROTOCOL_WEBRTC_FRAME_SCHEDULER_SIMPLE_H_ |
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