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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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