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/*
* Copyright (c) 2022 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 "video/video_receive_stream_timeout_tracker.h"
#include <utility>
#include <vector>
#include "api/task_queue/task_queue_base.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/time_controller/simulated_time_controller.h"
namespace webrtc {
namespace {
constexpr auto kMaxWaitForKeyframe = TimeDelta::Millis(500);
constexpr auto kMaxWaitForFrame = TimeDelta::Millis(1500);
constexpr VideoReceiveStreamTimeoutTracker::Timeouts config = {
kMaxWaitForKeyframe, kMaxWaitForFrame};
} // namespace
class VideoReceiveStreamTimeoutTrackerTest : public ::testing::Test {
public:
VideoReceiveStreamTimeoutTrackerTest()
: time_controller_(Timestamp::Millis(2000)),
timeout_tracker_(time_controller_.GetClock(),
time_controller_.GetMainThread(),
config,
[this](TimeDelta delay) { OnTimeout(delay); }) {}
protected:
GlobalSimulatedTimeController time_controller_;
VideoReceiveStreamTimeoutTracker timeout_tracker_;
std::vector<TimeDelta> timeouts_;
private:
void OnTimeout(TimeDelta delay) { timeouts_.push_back(delay); }
};
TEST_F(VideoReceiveStreamTimeoutTrackerTest, TimeoutAfterInitialPeriod) {
timeout_tracker_.Start(true);
time_controller_.AdvanceTime(kMaxWaitForKeyframe);
EXPECT_THAT(timeouts_, testing::ElementsAre(kMaxWaitForKeyframe));
timeout_tracker_.Stop();
}
TEST_F(VideoReceiveStreamTimeoutTrackerTest, NoTimeoutAfterStop) {
timeout_tracker_.Start(true);
time_controller_.AdvanceTime(kMaxWaitForKeyframe / 2);
timeout_tracker_.Stop();
time_controller_.AdvanceTime(kMaxWaitForKeyframe);
EXPECT_THAT(timeouts_, testing::IsEmpty());
}
TEST_F(VideoReceiveStreamTimeoutTrackerTest, TimeoutForDeltaFrame) {
timeout_tracker_.Start(true);
time_controller_.AdvanceTime(TimeDelta::Millis(5));
timeout_tracker_.OnEncodedFrameReleased();
time_controller_.AdvanceTime(kMaxWaitForFrame);
EXPECT_THAT(timeouts_, testing::ElementsAre(kMaxWaitForFrame));
timeout_tracker_.Stop();
}
TEST_F(VideoReceiveStreamTimeoutTrackerTest, TimeoutForKeyframeWhenForced) {
timeout_tracker_.Start(true);
time_controller_.AdvanceTime(TimeDelta::Millis(5));
timeout_tracker_.OnEncodedFrameReleased();
timeout_tracker_.SetWaitingForKeyframe();
time_controller_.AdvanceTime(kMaxWaitForKeyframe);
EXPECT_THAT(timeouts_, testing::ElementsAre(kMaxWaitForKeyframe));
timeout_tracker_.Stop();
}
TEST_F(VideoReceiveStreamTimeoutTrackerTest, TotalTimeoutUsedInCallback) {
timeout_tracker_.Start(true);
time_controller_.AdvanceTime(kMaxWaitForKeyframe * 2);
timeout_tracker_.OnEncodedFrameReleased();
time_controller_.AdvanceTime(kMaxWaitForFrame * 2);
EXPECT_THAT(timeouts_,
testing::ElementsAre(kMaxWaitForKeyframe, kMaxWaitForKeyframe * 2,
kMaxWaitForFrame, kMaxWaitForFrame * 2));
timeout_tracker_.Stop();
}
} // namespace webrtc