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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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| 63 } | 63 } |
| 64 | 64 |
| 65 void TMMBRSet::ClearEntry(uint32_t idx) { | 65 void TMMBRSet::ClearEntry(uint32_t idx) { |
| 66 SetEntry(idx, 0, 0, 0); | 66 SetEntry(idx, 0, 0, 0); |
| 67 } | 67 } |
| 68 | 68 |
| 69 TMMBRHelp::TMMBRHelp() | 69 TMMBRHelp::TMMBRHelp() |
| 70 : _criticalSection(CriticalSectionWrapper::CreateCriticalSection()), | 70 : _criticalSection(CriticalSectionWrapper::CreateCriticalSection()), |
| 71 _candidateSet(), | 71 _candidateSet(), |
| 72 _boundingSet(), | 72 _boundingSet(), |
| 73 _boundingSetToSend(), | |
| 74 _ptrIntersectionBoundingSet(NULL), | 73 _ptrIntersectionBoundingSet(NULL), |
| 75 _ptrMaxPRBoundingSet(NULL) { | 74 _ptrMaxPRBoundingSet(NULL) { |
| 76 } | 75 } |
| 77 | 76 |
| 78 TMMBRHelp::~TMMBRHelp() { | 77 TMMBRHelp::~TMMBRHelp() { |
| 79 delete [] _ptrIntersectionBoundingSet; | 78 delete [] _ptrIntersectionBoundingSet; |
| 80 delete [] _ptrMaxPRBoundingSet; | 79 delete [] _ptrMaxPRBoundingSet; |
| 81 _ptrIntersectionBoundingSet = 0; | 80 _ptrIntersectionBoundingSet = 0; |
| 82 _ptrMaxPRBoundingSet = 0; | 81 _ptrMaxPRBoundingSet = 0; |
| 83 delete _criticalSection; | 82 delete _criticalSection; |
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| 100 _ptrMaxPRBoundingSet = new float[minimumSize]; | 99 _ptrMaxPRBoundingSet = new float[minimumSize]; |
| 101 } | 100 } |
| 102 _boundingSet.VerifyAndAllocateSet(minimumSize); | 101 _boundingSet.VerifyAndAllocateSet(minimumSize); |
| 103 return &_boundingSet; | 102 return &_boundingSet; |
| 104 } | 103 } |
| 105 | 104 |
| 106 TMMBRSet* TMMBRHelp::BoundingSet() { | 105 TMMBRSet* TMMBRHelp::BoundingSet() { |
| 107 return &_boundingSet; | 106 return &_boundingSet; |
| 108 } | 107 } |
| 109 | 108 |
| 110 int32_t | |
| 111 TMMBRHelp::SetTMMBRBoundingSetToSend(const TMMBRSet* boundingSetToSend) | |
| 112 { | |
| 113 CriticalSectionScoped lock(_criticalSection); | |
| 114 | |
| 115 if (boundingSetToSend == NULL) | |
| 116 { | |
| 117 _boundingSetToSend.clearSet(); | |
| 118 return 0; | |
| 119 } | |
| 120 | |
| 121 VerifyAndAllocateBoundingSetToSend(boundingSetToSend->lengthOfSet()); | |
| 122 _boundingSetToSend.clearSet(); | |
| 123 for (uint32_t i = 0; i < boundingSetToSend->lengthOfSet(); i++) | |
| 124 { | |
| 125 // cap at our configured max bitrate | |
| 126 uint32_t bitrate = boundingSetToSend->Tmmbr(i); | |
| 127 _boundingSetToSend.SetEntry(i, bitrate, | |
| 128 boundingSetToSend->PacketOH(i), | |
| 129 boundingSetToSend->Ssrc(i)); | |
| 130 } | |
| 131 return 0; | |
| 132 } | |
| 133 | |
| 134 int32_t | |
| 135 TMMBRHelp::VerifyAndAllocateBoundingSetToSend(uint32_t minimumSize) | |
| 136 { | |
| 137 CriticalSectionScoped lock(_criticalSection); | |
| 138 | |
| 139 _boundingSetToSend.VerifyAndAllocateSet(minimumSize); | |
| 140 return 0; | |
| 141 } | |
| 142 | |
| 143 TMMBRSet* | 109 TMMBRSet* |
| 144 TMMBRHelp::VerifyAndAllocateCandidateSet(uint32_t minimumSize) | 110 TMMBRHelp::VerifyAndAllocateCandidateSet(uint32_t minimumSize) |
| 145 { | 111 { |
| 146 CriticalSectionScoped lock(_criticalSection); | 112 CriticalSectionScoped lock(_criticalSection); |
| 147 | 113 |
| 148 _candidateSet.VerifyAndAllocateSet(minimumSize); | 114 _candidateSet.VerifyAndAllocateSet(minimumSize); |
| 149 return &_candidateSet; | 115 return &_candidateSet; |
| 150 } | 116 } |
| 151 | 117 |
| 152 TMMBRSet* | 118 TMMBRSet* |
| 153 TMMBRHelp::CandidateSet() | 119 TMMBRHelp::CandidateSet() |
| 154 { | 120 { |
| 155 return &_candidateSet; | 121 return &_candidateSet; |
| 156 } | 122 } |
| 157 | 123 |
| 158 TMMBRSet* | |
| 159 TMMBRHelp::BoundingSetToSend() | |
| 160 { | |
| 161 return &_boundingSetToSend; | |
| 162 } | |
| 163 | |
| 164 int32_t | 124 int32_t |
| 165 TMMBRHelp::FindTMMBRBoundingSet(TMMBRSet*& boundingSet) | 125 TMMBRHelp::FindTMMBRBoundingSet(TMMBRSet*& boundingSet) |
| 166 { | 126 { |
| 167 CriticalSectionScoped lock(_criticalSection); | 127 CriticalSectionScoped lock(_criticalSection); |
| 168 | 128 |
| 169 // Work on local variable, will be modified | 129 // Work on local variable, will be modified |
| 170 TMMBRSet candidateSet; | 130 TMMBRSet candidateSet; |
| 171 candidateSet.VerifyAndAllocateSet(_candidateSet.capacity()); | 131 candidateSet.VerifyAndAllocateSet(_candidateSet.capacity()); |
| 172 | 132 |
| 173 for (uint32_t i = 0; i < _candidateSet.size(); i++) | 133 for (uint32_t i = 0; i < _candidateSet.size(); i++) |
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| 440 uint32_t curNetBitRateKbit = _candidateSet.Tmmbr(i); | 400 uint32_t curNetBitRateKbit = _candidateSet.Tmmbr(i); |
| 441 if (curNetBitRateKbit < MIN_VIDEO_BW_MANAGEMENT_BITRATE) { | 401 if (curNetBitRateKbit < MIN_VIDEO_BW_MANAGEMENT_BITRATE) { |
| 442 curNetBitRateKbit = MIN_VIDEO_BW_MANAGEMENT_BITRATE; | 402 curNetBitRateKbit = MIN_VIDEO_BW_MANAGEMENT_BITRATE; |
| 443 } | 403 } |
| 444 *minBitrateKbit = curNetBitRateKbit < *minBitrateKbit ? | 404 *minBitrateKbit = curNetBitRateKbit < *minBitrateKbit ? |
| 445 curNetBitRateKbit : *minBitrateKbit; | 405 curNetBitRateKbit : *minBitrateKbit; |
| 446 } | 406 } |
| 447 return true; | 407 return true; |
| 448 } | 408 } |
| 449 } // namespace webrtc | 409 } // namespace webrtc |
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