| /* |
| * Copyright (c) 2021 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 "modules/audio_coding/neteq/underrun_optimizer.h" |
| |
| #include "test/gtest.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| |
| constexpr int kDefaultHistogramQuantile = 1020054733; // 0.95 in Q30. |
| constexpr int kForgetFactor = 32745; // 0.9993 in Q15. |
| |
| } // namespace |
| |
| TEST(UnderrunOptimizerTest, ResamplePacketDelays) { |
| TickTimer tick_timer; |
| constexpr int kResampleIntervalMs = 500; |
| UnderrunOptimizer underrun_optimizer(&tick_timer, kDefaultHistogramQuantile, |
| kForgetFactor, std::nullopt, |
| kResampleIntervalMs); |
| |
| // The histogram should be updated once with the maximum delay observed for |
| // the following sequence of updates. |
| for (int i = 0; i < 500; i += 20) { |
| underrun_optimizer.Update(i); |
| EXPECT_FALSE(underrun_optimizer.GetOptimalDelayMs()); |
| } |
| tick_timer.Increment(kResampleIntervalMs / tick_timer.ms_per_tick() + 1); |
| underrun_optimizer.Update(0); |
| EXPECT_EQ(underrun_optimizer.GetOptimalDelayMs(), 500); |
| } |
| |
| } // namespace webrtc |
