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Side by Side Diff: webrtc/modules/video_coding/utility/frame_dropper.h

Issue 1440873005: modules/video_coding/utility: Remove include (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Fix after rebase mistake Created 5 years, 1 month ago
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1 /* 1 /*
2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 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 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 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
11 #ifndef WEBRTC_MODULES_VIDEO_CODING_UTILITY_INCLUDE_FRAME_DROPPER_H_ 11 #ifndef WEBRTC_MODULES_VIDEO_CODING_UTILITY_FRAME_DROPPER_H_
12 #define WEBRTC_MODULES_VIDEO_CODING_UTILITY_INCLUDE_FRAME_DROPPER_H_ 12 #define WEBRTC_MODULES_VIDEO_CODING_UTILITY_FRAME_DROPPER_H_
13 13
14 #include <cstddef> 14 #include <cstddef>
15 15
16 #include "webrtc/base/exp_filter.h" 16 #include "webrtc/base/exp_filter.h"
17 #include "webrtc/typedefs.h" 17 #include "webrtc/typedefs.h"
18 18
19 namespace webrtc 19 namespace webrtc {
20 {
21 20
22 // The Frame Dropper implements a variant of the leaky bucket algorithm 21 // The Frame Dropper implements a variant of the leaky bucket algorithm
23 // for keeping track of when to drop frames to avoid bit rate 22 // for keeping track of when to drop frames to avoid bit rate
24 // over use when the encoder can't keep its bit rate. 23 // over use when the encoder can't keep its bit rate.
25 class FrameDropper 24 class FrameDropper {
26 { 25 public:
27 public:
28 FrameDropper(); 26 FrameDropper();
29 explicit FrameDropper(float max_time_drops); 27 explicit FrameDropper(float max_time_drops);
30 virtual ~FrameDropper() {} 28 virtual ~FrameDropper() {}
31 29
32 // Resets the FrameDropper to its initial state. 30 // Resets the FrameDropper to its initial state.
33 // This means that the frameRateWeight is set to its 31 // This means that the frameRateWeight is set to its
34 // default value as well. 32 // default value as well.
35 virtual void Reset(); 33 virtual void Reset();
36 34
37 virtual void Enable(bool enable); 35 virtual void Enable(bool enable);
(...skipping 24 matching lines...) Expand all
62 // 60 //
63 // Input: 61 // Input:
64 // - bitRate : The target bit rate 62 // - bitRate : The target bit rate
65 virtual void SetRates(float bitRate, float incoming_frame_rate); 63 virtual void SetRates(float bitRate, float incoming_frame_rate);
66 64
67 // Return value : The current average frame rate produced 65 // Return value : The current average frame rate produced
68 // if the DropFrame() function is used as 66 // if the DropFrame() function is used as
69 // instruction of when to drop frames. 67 // instruction of when to drop frames.
70 virtual float ActualFrameRate(uint32_t inputFrameRate) const; 68 virtual float ActualFrameRate(uint32_t inputFrameRate) const;
71 69
72 private: 70 private:
73 void FillBucket(float inKbits, float outKbits); 71 void FillBucket(float inKbits, float outKbits);
74 void UpdateRatio(); 72 void UpdateRatio();
75 void CapAccumulator(); 73 void CapAccumulator();
76 74
77 rtc::ExpFilter _keyFrameSizeAvgKbits; 75 rtc::ExpFilter _keyFrameSizeAvgKbits;
78 rtc::ExpFilter _keyFrameRatio; 76 rtc::ExpFilter _keyFrameRatio;
79 float _keyFrameSpreadFrames; 77 float _keyFrameSpreadFrames;
80 int32_t _keyFrameCount; 78 int32_t _keyFrameCount;
81 float _accumulator; 79 float _accumulator;
82 float _accumulatorMax; 80 float _accumulatorMax;
83 float _targetBitRate; 81 float _targetBitRate;
84 bool _dropNext; 82 bool _dropNext;
85 rtc::ExpFilter _dropRatio; 83 rtc::ExpFilter _dropRatio;
86 int32_t _dropCount; 84 int32_t _dropCount;
87 float _windowSize; 85 float _windowSize;
88 float _incoming_frame_rate; 86 float _incoming_frame_rate;
89 bool _wasBelowMax; 87 bool _wasBelowMax;
90 bool _enabled; 88 bool _enabled;
91 bool _fastMode; 89 bool _fastMode;
92 float _cap_buffer_size; 90 float _cap_buffer_size;
93 float _max_time_drops; 91 float _max_time_drops;
94 }; // end of VCMFrameDropper class 92 }; // end of VCMFrameDropper class
95 93
96 } // namespace webrtc 94 } // namespace webrtc
97 95
98 #endif // WEBRTC_MODULES_VIDEO_CODING_UTILITY_INCLUDE_FRAME_DROPPER_H_ 96 #endif // WEBRTC_MODULES_VIDEO_CODING_UTILITY_FRAME_DROPPER_H_
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