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1 /* | 1 /* |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2016 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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47 int max_bitrate_bps) { | 47 int max_bitrate_bps) { |
48 rtc::CritScope cs(&critsect_); | 48 rtc::CritScope cs(&critsect_); |
49 if (state_ == State::kInit) { | 49 if (state_ == State::kInit) { |
50 // When probing at 1.8 Mbps ( 6x 300), this represents a threshold of | 50 // When probing at 1.8 Mbps ( 6x 300), this represents a threshold of |
51 // 1.2 Mbps to continue probing. | 51 // 1.2 Mbps to continue probing. |
52 InitiateProbing({3 * start_bitrate_bps, 6 * start_bitrate_bps}, | 52 InitiateProbing({3 * start_bitrate_bps, 6 * start_bitrate_bps}, |
53 4 * start_bitrate_bps); | 53 4 * start_bitrate_bps); |
54 } | 54 } |
55 | 55 |
56 // Only do probing if: | 56 // Only do probing if: |
57 // - we are mid-call, which we consider to be if | 57 // we are mid-call, which we consider to be if |
58 // |estimated_bitrate_bps_| != 0, and | 58 // exponential probing is not active and |
59 // - the current bitrate is lower than the new |max_bitrate_bps|, and | 59 // |estimated_bitrate_bps_| is valid (> 0) and |
60 // - we actually want to increase the |max_bitrate_bps_|. | 60 // the current bitrate is lower than the new |max_bitrate_bps|, and |
61 if (estimated_bitrate_bps_ != 0 && estimated_bitrate_bps_ < max_bitrate_bps && | 61 // we actually want to increase the |max_bitrate_bps_|. |
| 62 if (state_ != State::kWaitingForProbingResult && |
| 63 estimated_bitrate_bps_ != 0 && |
| 64 estimated_bitrate_bps_ < max_bitrate_bps && |
62 max_bitrate_bps > max_bitrate_bps_) { | 65 max_bitrate_bps > max_bitrate_bps_) { |
63 InitiateProbing({max_bitrate_bps}, kExponentialProbingDisabled); | 66 InitiateProbing({max_bitrate_bps}, kExponentialProbingDisabled); |
64 } | 67 } |
65 max_bitrate_bps_ = max_bitrate_bps; | 68 max_bitrate_bps_ = max_bitrate_bps; |
66 } | 69 } |
67 | 70 |
68 void ProbeController::SetEstimatedBitrate(int bitrate_bps) { | 71 void ProbeController::SetEstimatedBitrate(int bitrate_bps) { |
69 rtc::CritScope cs(&critsect_); | 72 rtc::CritScope cs(&critsect_); |
70 if (state_ == State::kWaitingForProbingResult) { | 73 if (state_ == State::kWaitingForProbingResult) { |
71 if ((clock_->TimeInMilliseconds() - time_last_probing_initiated_ms_) > | 74 if ((clock_->TimeInMilliseconds() - time_last_probing_initiated_ms_) > |
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104 } | 107 } |
105 min_bitrate_to_probe_further_bps_ = min_bitrate_to_probe_further_bps; | 108 min_bitrate_to_probe_further_bps_ = min_bitrate_to_probe_further_bps; |
106 time_last_probing_initiated_ms_ = clock_->TimeInMilliseconds(); | 109 time_last_probing_initiated_ms_ = clock_->TimeInMilliseconds(); |
107 if (min_bitrate_to_probe_further_bps == kExponentialProbingDisabled) | 110 if (min_bitrate_to_probe_further_bps == kExponentialProbingDisabled) |
108 state_ = State::kProbingComplete; | 111 state_ = State::kProbingComplete; |
109 else | 112 else |
110 state_ = State::kWaitingForProbingResult; | 113 state_ = State::kWaitingForProbingResult; |
111 } | 114 } |
112 | 115 |
113 } // namespace webrtc | 116 } // namespace webrtc |
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