| /* |
| * Copyright 2019 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 <stdint.h> |
| |
| #include "absl/types/optional.h" |
| #include "api/scoped_refptr.h" |
| #include "pc/playout_latency.h" |
| #include "pc/test/mock_delayable.h" |
| #include "rtc_base/ref_counted_object.h" |
| #include "rtc_base/thread.h" |
| #include "test/gmock.h" |
| #include "test/gtest.h" |
| |
| using ::testing::Return; |
| |
| namespace { |
| constexpr int kSsrc = 1234; |
| } // namespace |
| |
| namespace webrtc { |
| |
| class PlayoutLatencyTest : public ::testing::Test { |
| public: |
| PlayoutLatencyTest() |
| : latency_( |
| new rtc::RefCountedObject<PlayoutLatency>(rtc::Thread::Current())) { |
| } |
| |
| protected: |
| rtc::scoped_refptr<PlayoutLatencyInterface> latency_; |
| MockDelayable delayable_; |
| }; |
| |
| TEST_F(PlayoutLatencyTest, DefaultValue) { |
| EXPECT_DOUBLE_EQ(0.0, latency_->GetLatency()); |
| } |
| |
| TEST_F(PlayoutLatencyTest, GetLatency) { |
| latency_->OnStart(&delayable_, kSsrc); |
| |
| EXPECT_CALL(delayable_, GetBaseMinimumPlayoutDelayMs(kSsrc)) |
| .WillOnce(Return(2000)); |
| // Latency in seconds. |
| EXPECT_DOUBLE_EQ(2.0, latency_->GetLatency()); |
| |
| EXPECT_CALL(delayable_, GetBaseMinimumPlayoutDelayMs(kSsrc)) |
| .WillOnce(Return(absl::nullopt)); |
| // When no value is returned by GetBaseMinimumPlayoutDelayMs, and there are |
| // no caching, then return default value. |
| EXPECT_DOUBLE_EQ(0.0, latency_->GetLatency()); |
| } |
| |
| TEST_F(PlayoutLatencyTest, SetLatency) { |
| latency_->OnStart(&delayable_, kSsrc); |
| |
| EXPECT_CALL(delayable_, SetBaseMinimumPlayoutDelayMs(kSsrc, 3000)) |
| .WillOnce(Return(true)); |
| |
| // Latency in seconds. |
| latency_->SetLatency(3.0); |
| } |
| |
| TEST_F(PlayoutLatencyTest, Caching) { |
| // Check that value is cached before start. |
| latency_->SetLatency(4.0); |
| // Latency in seconds. |
| EXPECT_DOUBLE_EQ(4.0, latency_->GetLatency()); |
| |
| // Check that cached value applied on the start. |
| EXPECT_CALL(delayable_, SetBaseMinimumPlayoutDelayMs(kSsrc, 4000)) |
| .WillOnce(Return(true)); |
| latency_->OnStart(&delayable_, kSsrc); |
| |
| EXPECT_CALL(delayable_, GetBaseMinimumPlayoutDelayMs(kSsrc)) |
| .WillOnce(Return(absl::nullopt)); |
| // On false the latest cached value is returned. |
| EXPECT_DOUBLE_EQ(4.0, latency_->GetLatency()); |
| |
| latency_->OnStop(); |
| |
| // Check that after stop it returns last cached value. |
| EXPECT_DOUBLE_EQ(4.0, latency_->GetLatency()); |
| } |
| |
| TEST_F(PlayoutLatencyTest, Clamping) { |
| latency_->OnStart(&delayable_, kSsrc); |
| |
| // In current Jitter Buffer implementation (Audio or Video) maximum supported |
| // value is 10000 milliseconds. |
| EXPECT_CALL(delayable_, SetBaseMinimumPlayoutDelayMs(kSsrc, 10000)) |
| .WillOnce(Return(true)); |
| latency_->SetLatency(10.5); |
| |
| // Boundary value in seconds to milliseconds conversion. |
| EXPECT_CALL(delayable_, SetBaseMinimumPlayoutDelayMs(kSsrc, 0)) |
| .WillOnce(Return(true)); |
| latency_->SetLatency(0.0009); |
| |
| EXPECT_CALL(delayable_, SetBaseMinimumPlayoutDelayMs(kSsrc, 0)) |
| .WillOnce(Return(true)); |
| |
| latency_->SetLatency(-2.0); |
| } |
| |
| } // namespace webrtc |