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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 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 // This class estimates the incoming available bandwidth. | 11 // This class estimates the incoming available bandwidth. |
12 | 12 |
13 #ifndef WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR
_H_ | 13 #ifndef WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR
_H_ |
14 #define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR
_H_ | 14 #define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR
_H_ |
15 | 15 |
16 #include <map> | 16 #include <map> |
17 #include <vector> | 17 #include <vector> |
18 | 18 |
19 #include "webrtc/common_types.h" | 19 #include "webrtc/common_types.h" |
20 #include "webrtc/modules/interface/module.h" | 20 #include "webrtc/modules/interface/module.h" |
21 #include "webrtc/modules/interface/module_common_types.h" | 21 #include "webrtc/modules/interface/module_common_types.h" |
| 22 #include "webrtc/modules/rtp_rtcp/interface/rtp_rtcp_defines.h" |
22 #include "webrtc/typedefs.h" | 23 #include "webrtc/typedefs.h" |
23 | 24 |
24 namespace webrtc { | 25 namespace webrtc { |
25 | 26 |
26 class Clock; | 27 class Clock; |
27 | 28 |
28 // RemoteBitrateObserver is used to signal changes in bitrate estimates for | 29 // RemoteBitrateObserver is used to signal changes in bitrate estimates for |
29 // the incoming streams. | 30 // the incoming streams. |
30 class RemoteBitrateObserver { | 31 class RemoteBitrateObserver { |
31 public: | 32 public: |
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51 int total_propagation_time_delta_ms; | 52 int total_propagation_time_delta_ms; |
52 // The propagation_time_deltas for the frames arrived in the last | 53 // The propagation_time_deltas for the frames arrived in the last |
53 // kProcessIntervalMs using the clock passed to | 54 // kProcessIntervalMs using the clock passed to |
54 // RemoteBitrateEstimatorFactory::Create. | 55 // RemoteBitrateEstimatorFactory::Create. |
55 std::vector<int> recent_propagation_time_delta_ms; | 56 std::vector<int> recent_propagation_time_delta_ms; |
56 // The arrival times for the frames arrived in the last kProcessIntervalMs | 57 // The arrival times for the frames arrived in the last kProcessIntervalMs |
57 // using the clock passed to RemoteBitrateEstimatorFactory::Create. | 58 // using the clock passed to RemoteBitrateEstimatorFactory::Create. |
58 std::vector<int64_t> recent_arrival_time_ms; | 59 std::vector<int64_t> recent_arrival_time_ms; |
59 }; | 60 }; |
60 | 61 |
61 struct PacketInfo { | |
62 PacketInfo(int64_t arrival_time_ms, | |
63 int64_t send_time_ms, | |
64 uint16_t sequence_number, | |
65 size_t payload_size, | |
66 bool was_paced) | |
67 : arrival_time_ms(arrival_time_ms), | |
68 send_time_ms(send_time_ms), | |
69 sequence_number(sequence_number), | |
70 payload_size(payload_size), | |
71 was_paced(was_paced) {} | |
72 // Time corresponding to when the packet was received. Timestamped with the | |
73 // receiver's clock. | |
74 int64_t arrival_time_ms; | |
75 // Time corresponding to when the packet was sent, timestamped with the | |
76 // sender's clock. | |
77 int64_t send_time_ms; | |
78 // Packet identifier, incremented with 1 for every packet generated by the | |
79 // sender. | |
80 uint16_t sequence_number; | |
81 // Size of the packet excluding RTP headers. | |
82 size_t payload_size; | |
83 // True if the packet was paced out by the pacer. | |
84 bool was_paced; | |
85 }; | |
86 | |
87 class RemoteBitrateEstimator : public CallStatsObserver, public Module { | 62 class RemoteBitrateEstimator : public CallStatsObserver, public Module { |
88 public: | 63 public: |
| 64 static const int kDefaultMinBitrateBps = 30000; |
89 virtual ~RemoteBitrateEstimator() {} | 65 virtual ~RemoteBitrateEstimator() {} |
90 | 66 |
91 virtual void IncomingPacketFeedbackVector( | 67 virtual void IncomingPacketFeedbackVector( |
92 const std::vector<PacketInfo>& packet_feedback_vector) { | 68 const std::vector<PacketInfo>& packet_feedback_vector) { |
93 assert(false); | 69 assert(false); |
94 } | 70 } |
95 | 71 |
96 // Called for each incoming packet. Updates the incoming payload bitrate | 72 // Called for each incoming packet. Updates the incoming payload bitrate |
97 // estimate and the over-use detector. If an over-use is detected the | 73 // estimate and the over-use detector. If an over-use is detected the |
98 // remote bitrate estimate will be updated. Note that |payload_size| is the | 74 // remote bitrate estimate will be updated. Note that |payload_size| is the |
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116 virtual bool GetStats(ReceiveBandwidthEstimatorStats* output) const = 0; | 92 virtual bool GetStats(ReceiveBandwidthEstimatorStats* output) const = 0; |
117 | 93 |
118 protected: | 94 protected: |
119 static const int64_t kProcessIntervalMs = 500; | 95 static const int64_t kProcessIntervalMs = 500; |
120 static const int64_t kStreamTimeOutMs = 2000; | 96 static const int64_t kStreamTimeOutMs = 2000; |
121 }; | 97 }; |
122 | 98 |
123 } // namespace webrtc | 99 } // namespace webrtc |
124 | 100 |
125 #endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMA
TOR_H_ | 101 #endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMA
TOR_H_ |
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