| /* |
| * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <algorithm> |
| #include <vector> |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.h" |
| |
| namespace webrtc { |
| |
| TEST(SendSideBweTest, InitialRembWithProbing) { |
| SendSideBandwidthEstimation bwe; |
| bwe.SetMinMaxBitrate(100000, 1500000); |
| bwe.SetSendBitrate(200000); |
| |
| const int kRembBps = 1000000; |
| const int kSecondRembBps = kRembBps + 500000; |
| int64_t now_ms = 0; |
| |
| bwe.UpdateReceiverBlock(0, 50, 1, now_ms); |
| |
| // Initial REMB applies immediately. |
| bwe.UpdateReceiverEstimate(now_ms, kRembBps); |
| bwe.UpdateEstimate(now_ms); |
| int bitrate; |
| uint8_t fraction_loss; |
| int64_t rtt; |
| bwe.CurrentEstimate(&bitrate, &fraction_loss, &rtt); |
| EXPECT_EQ(kRembBps, bitrate); |
| |
| // Second REMB doesn't apply immediately. |
| now_ms += 2001; |
| bwe.UpdateReceiverEstimate(now_ms, kSecondRembBps); |
| bwe.UpdateEstimate(now_ms); |
| bitrate = 0; |
| bwe.CurrentEstimate(&bitrate, &fraction_loss, &rtt); |
| EXPECT_EQ(kRembBps, bitrate); |
| } |
| } // namespace webrtc |