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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 |
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25 namespace webrtc { | 25 namespace webrtc { |
26 | 26 |
27 class Clock; | 27 class Clock; |
28 | 28 |
29 // RemoteBitrateObserver is used to signal changes in bitrate estimates for | 29 // RemoteBitrateObserver is used to signal changes in bitrate estimates for |
30 // the incoming streams. | 30 // the incoming streams. |
31 class RemoteBitrateObserver { | 31 class RemoteBitrateObserver { |
32 public: | 32 public: |
33 // Called when a receive channel group has a new bitrate estimate for the | 33 // Called when a receive channel group has a new bitrate estimate for the |
34 // incoming streams. | 34 // incoming streams. |
35 virtual void OnReceiveBitrateChanged(const std::vector<unsigned int>& ssrcs, | 35 virtual void OnReceiveBitrateChanged(const std::vector<uint32_t>& ssrcs, |
36 unsigned int bitrate) = 0; | 36 uint32_t bitrate) = 0; |
37 | 37 |
38 virtual ~RemoteBitrateObserver() {} | 38 virtual ~RemoteBitrateObserver() {} |
39 }; | 39 }; |
40 | 40 |
41 struct ReceiveBandwidthEstimatorStats { | 41 struct ReceiveBandwidthEstimatorStats { |
42 ReceiveBandwidthEstimatorStats() : total_propagation_time_delta_ms(0) {} | 42 ReceiveBandwidthEstimatorStats() : total_propagation_time_delta_ms(0) {} |
43 | 43 |
44 // The "propagation_time_delta" of a frame is defined as (d_arrival - d_sent), | 44 // The "propagation_time_delta" of a frame is defined as (d_arrival - d_sent), |
45 // where d_arrival is the delta of the arrival times of the frame and the | 45 // where d_arrival is the delta of the arrival times of the frame and the |
46 // previous frame, d_sent is the delta of the sent times of the frame and | 46 // previous frame, d_sent is the delta of the sent times of the frame and |
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73 // 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 |
74 // 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 |
75 // packet size excluding headers. | 75 // packet size excluding headers. |
76 // Note that |arrival_time_ms| can be of an arbitrary time base. | 76 // Note that |arrival_time_ms| can be of an arbitrary time base. |
77 virtual void IncomingPacket(int64_t arrival_time_ms, | 77 virtual void IncomingPacket(int64_t arrival_time_ms, |
78 size_t payload_size, | 78 size_t payload_size, |
79 const RTPHeader& header, | 79 const RTPHeader& header, |
80 bool was_paced) = 0; | 80 bool was_paced) = 0; |
81 | 81 |
82 // Removes all data for |ssrc|. | 82 // Removes all data for |ssrc|. |
83 virtual void RemoveStream(unsigned int ssrc) = 0; | 83 virtual void RemoveStream(uint32_t ssrc) = 0; |
84 | 84 |
85 // Returns true if a valid estimate exists and sets |bitrate_bps| to the | 85 // Returns true if a valid estimate exists and sets |bitrate_bps| to the |
86 // estimated payload bitrate in bits per second. |ssrcs| is the list of ssrcs | 86 // estimated payload bitrate in bits per second. |ssrcs| is the list of ssrcs |
87 // currently being received and of which the bitrate estimate is based upon. | 87 // currently being received and of which the bitrate estimate is based upon. |
88 virtual bool LatestEstimate(std::vector<unsigned int>* ssrcs, | 88 virtual bool LatestEstimate(std::vector<uint32_t>* ssrcs, |
89 unsigned int* bitrate_bps) const = 0; | 89 uint32_t* bitrate_bps) const = 0; |
90 | 90 |
91 // Returns true if the statistics are available. | 91 // Returns true if the statistics are available. |
92 virtual bool GetStats(ReceiveBandwidthEstimatorStats* output) const = 0; | 92 virtual bool GetStats(ReceiveBandwidthEstimatorStats* output) const = 0; |
93 | 93 |
94 virtual void SetMinBitrate(int min_bitrate_bps) = 0; | 94 virtual void SetMinBitrate(int min_bitrate_bps) = 0; |
95 | 95 |
96 protected: | 96 protected: |
97 static const int64_t kProcessIntervalMs = 500; | 97 static const int64_t kProcessIntervalMs = 500; |
98 static const int64_t kStreamTimeOutMs = 2000; | 98 static const int64_t kStreamTimeOutMs = 2000; |
99 }; | 99 }; |
100 | 100 |
101 } // namespace webrtc | 101 } // namespace webrtc |
102 | 102 |
103 #endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMA
TOR_H_ | 103 #endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMA
TOR_H_ |
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