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1 /* | 1 /* |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2013 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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944 | 944 |
945 std::vector<int> BweTest::GetFileSizesBytes(int num_files) { | 945 std::vector<int> BweTest::GetFileSizesBytes(int num_files) { |
946 // File size chosen from uniform distribution between [100,1000] kB. | 946 // File size chosen from uniform distribution between [100,1000] kB. |
947 const int kMinKbytes = 100; | 947 const int kMinKbytes = 100; |
948 const int kMaxKbytes = 1000; | 948 const int kMaxKbytes = 1000; |
949 | 949 |
950 test::Random random(0x12345678); | 950 test::Random random(0x12345678); |
951 std::vector<int> tcp_file_sizes_bytes; | 951 std::vector<int> tcp_file_sizes_bytes; |
952 | 952 |
953 while (num_files-- > 0) { | 953 while (num_files-- > 0) { |
954 tcp_file_sizes_bytes.push_back(random.Rand(kMinKbytes, kMaxKbytes) * 1000); | 954 tcp_file_sizes_bytes.push_back(random.Uniform(kMinKbytes, kMaxKbytes) * |
| 955 1000); |
955 } | 956 } |
956 | 957 |
957 return tcp_file_sizes_bytes; | 958 return tcp_file_sizes_bytes; |
958 } | 959 } |
959 | 960 |
960 std::vector<int64_t> BweTest::GetStartingTimesMs(int num_files) { | 961 std::vector<int64_t> BweTest::GetStartingTimesMs(int num_files) { |
961 // OFF state behaves as an exp. distribution with mean = 10 seconds. | 962 // OFF state behaves as an exp. distribution with mean = 10 seconds. |
962 const float kMeanMs = 10000.0f; | 963 const float kMeanMs = 10000.0f; |
963 test::Random random(0x12345678); | 964 test::Random random(0x12345678); |
964 | 965 |
965 std::vector<int64_t> tcp_starting_times_ms; | 966 std::vector<int64_t> tcp_starting_times_ms; |
966 | 967 |
967 // Two TCP Flows are initialized simultaneosly at t=0 seconds. | 968 // Two TCP Flows are initialized simultaneosly at t=0 seconds. |
968 for (int i = 0; i < 2; ++i, --num_files) { | 969 for (int i = 0; i < 2; ++i, --num_files) { |
969 tcp_starting_times_ms.push_back(0); | 970 tcp_starting_times_ms.push_back(0); |
970 } | 971 } |
971 | 972 |
972 // Other TCP Flows are initialized in an OFF state. | 973 // Other TCP Flows are initialized in an OFF state. |
973 while (num_files-- > 0) { | 974 while (num_files-- > 0) { |
974 tcp_starting_times_ms.push_back( | 975 tcp_starting_times_ms.push_back( |
975 static_cast<int64_t>(random.Exponential(1.0f / kMeanMs))); | 976 static_cast<int64_t>(random.Exponential(1.0f / kMeanMs))); |
976 } | 977 } |
977 | 978 |
978 return tcp_starting_times_ms; | 979 return tcp_starting_times_ms; |
979 } | 980 } |
980 | 981 |
981 } // namespace bwe | 982 } // namespace bwe |
982 } // namespace testing | 983 } // namespace testing |
983 } // namespace webrtc | 984 } // namespace webrtc |
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