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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/task_queue_frame_decode_scheduler.h"
#include <stddef.h>
#include <memory>
#include <utility>
#include "absl/types/optional.h"
#include "api/units/time_delta.h"
#include "api/units/timestamp.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/time_controller/simulated_time_controller.h"
namespace webrtc {
using ::testing::_;
using ::testing::Eq;
using ::testing::MockFunction;
using ::testing::Optional;
TEST(TaskQueueFrameDecodeSchedulerTest, FrameYieldedAfterSpecifiedPeriod) {
GlobalSimulatedTimeController time_controller_(Timestamp::Seconds(2000));
TaskQueueFrameDecodeScheduler scheduler(time_controller_.GetClock(),
time_controller_.GetMainThread());
constexpr TimeDelta decode_delay = TimeDelta::Millis(5);
const Timestamp now = time_controller_.GetClock()->CurrentTime();
const uint32_t rtp = 90000;
const Timestamp render_time = now + TimeDelta::Millis(15);
FrameDecodeTiming::FrameSchedule schedule = {
.latest_decode_time = now + decode_delay, .render_time = render_time};
MockFunction<void(uint32_t, Timestamp)> ready_cb;
scheduler.ScheduleFrame(rtp, schedule, ready_cb.AsStdFunction());
EXPECT_CALL(ready_cb, Call(_, _)).Times(0);
EXPECT_THAT(scheduler.ScheduledRtpTimestamp(), Optional(rtp));
time_controller_.AdvanceTime(TimeDelta::Zero());
// Check that `ready_cb` has not been invoked yet.
::testing::Mock::VerifyAndClearExpectations(&ready_cb);
EXPECT_CALL(ready_cb, Call(rtp, render_time)).Times(1);
time_controller_.AdvanceTime(decode_delay);
scheduler.Stop();
}
TEST(TaskQueueFrameDecodeSchedulerTest, NegativeDecodeDelayIsRoundedToZero) {
GlobalSimulatedTimeController time_controller_(Timestamp::Seconds(2000));
TaskQueueFrameDecodeScheduler scheduler(time_controller_.GetClock(),
time_controller_.GetMainThread());
constexpr TimeDelta decode_delay = TimeDelta::Millis(-5);
const Timestamp now = time_controller_.GetClock()->CurrentTime();
const uint32_t rtp = 90000;
const Timestamp render_time = now + TimeDelta::Millis(15);
FrameDecodeTiming::FrameSchedule schedule = {
.latest_decode_time = now + decode_delay, .render_time = render_time};
MockFunction<void(uint32_t, Timestamp)> ready_cb;
EXPECT_CALL(ready_cb, Call(rtp, render_time)).Times(1);
scheduler.ScheduleFrame(rtp, schedule, ready_cb.AsStdFunction());
EXPECT_THAT(scheduler.ScheduledRtpTimestamp(), Optional(rtp));
time_controller_.AdvanceTime(TimeDelta::Zero());
scheduler.Stop();
}
TEST(TaskQueueFrameDecodeSchedulerTest, CancelOutstanding) {
GlobalSimulatedTimeController time_controller_(Timestamp::Seconds(2000));
TaskQueueFrameDecodeScheduler scheduler(time_controller_.GetClock(),
time_controller_.GetMainThread());
constexpr TimeDelta decode_delay = TimeDelta::Millis(50);
const Timestamp now = time_controller_.GetClock()->CurrentTime();
const uint32_t rtp = 90000;
FrameDecodeTiming::FrameSchedule schedule = {
.latest_decode_time = now + decode_delay,
.render_time = now + TimeDelta::Millis(75)};
MockFunction<void(uint32_t, Timestamp)> ready_cb;
EXPECT_CALL(ready_cb, Call).Times(0);
scheduler.ScheduleFrame(rtp, schedule, ready_cb.AsStdFunction());
EXPECT_THAT(scheduler.ScheduledRtpTimestamp(), Optional(rtp));
time_controller_.AdvanceTime(decode_delay / 2);
EXPECT_THAT(scheduler.ScheduledRtpTimestamp(), Optional(rtp));
scheduler.CancelOutstanding();
EXPECT_THAT(scheduler.ScheduledRtpTimestamp(), Eq(absl::nullopt));
time_controller_.AdvanceTime(decode_delay / 2);
scheduler.Stop();
}
} // namespace webrtc
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