mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-23 08:27:30 +00:00
298 lines
9.9 KiB
C++
298 lines
9.9 KiB
C++
/*
|
|
* Copyright (c) 2012 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.
|
|
*/
|
|
|
|
// Unit tests for DelayManager class.
|
|
|
|
#include "webrtc/modules/audio_coding/neteq/delay_manager.h"
|
|
|
|
#include <math.h>
|
|
|
|
#include "gmock/gmock.h"
|
|
#include "gtest/gtest.h"
|
|
#include "webrtc/modules/audio_coding/neteq/mock/mock_delay_peak_detector.h"
|
|
|
|
namespace webrtc {
|
|
|
|
using ::testing::Return;
|
|
using ::testing::_;
|
|
|
|
class DelayManagerTest : public ::testing::Test {
|
|
protected:
|
|
static const int kMaxNumberOfPackets = 240;
|
|
static const int kTimeStepMs = 10;
|
|
static const int kFs = 8000;
|
|
static const int kFrameSizeMs = 20;
|
|
static const int kTsIncrement = kFrameSizeMs * kFs / 1000;
|
|
|
|
DelayManagerTest();
|
|
virtual void SetUp();
|
|
virtual void TearDown();
|
|
void SetPacketAudioLength(int lengt_ms);
|
|
void InsertNextPacket();
|
|
void IncreaseTime(int inc_ms);
|
|
|
|
DelayManager* dm_;
|
|
MockDelayPeakDetector detector_;
|
|
uint16_t seq_no_;
|
|
uint32_t ts_;
|
|
};
|
|
|
|
DelayManagerTest::DelayManagerTest()
|
|
: dm_(NULL),
|
|
seq_no_(0x1234),
|
|
ts_(0x12345678) {
|
|
}
|
|
|
|
void DelayManagerTest::SetUp() {
|
|
EXPECT_CALL(detector_, Reset())
|
|
.Times(1);
|
|
dm_ = new DelayManager(kMaxNumberOfPackets, &detector_);
|
|
}
|
|
|
|
void DelayManagerTest::SetPacketAudioLength(int lengt_ms) {
|
|
EXPECT_CALL(detector_, SetPacketAudioLength(lengt_ms));
|
|
dm_->SetPacketAudioLength(lengt_ms);
|
|
}
|
|
|
|
void DelayManagerTest::InsertNextPacket() {
|
|
EXPECT_EQ(0, dm_->Update(seq_no_, ts_, kFs));
|
|
seq_no_ += 1;
|
|
ts_ += kTsIncrement;
|
|
}
|
|
|
|
void DelayManagerTest::IncreaseTime(int inc_ms) {
|
|
for (int t = 0; t < inc_ms; t += kTimeStepMs) {
|
|
EXPECT_CALL(detector_, IncrementCounter(kTimeStepMs))
|
|
.Times(1);
|
|
dm_->UpdateCounters(kTimeStepMs);
|
|
}
|
|
}
|
|
void DelayManagerTest::TearDown() {
|
|
EXPECT_CALL(detector_, Die());
|
|
delete dm_;
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, CreateAndDestroy) {
|
|
// Nothing to do here. The test fixture creates and destroys the DelayManager
|
|
// object.
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, VectorInitialization) {
|
|
const DelayManager::IATVector& vec = dm_->iat_vector();
|
|
double sum = 0.0;
|
|
for (size_t i = 0; i < vec.size(); i++) {
|
|
EXPECT_NEAR(ldexp(pow(0.5, static_cast<int>(i + 1)), 30), vec[i], 65536);
|
|
// Tolerance 65536 in Q30 corresponds to a delta of approximately 0.00006.
|
|
sum += vec[i];
|
|
}
|
|
EXPECT_EQ(1 << 30, static_cast<int>(sum)); // Should be 1 in Q30.
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, SetPacketAudioLength) {
|
|
const int kLengthMs = 30;
|
|
// Expect DelayManager to pass on the new length to the detector object.
|
|
EXPECT_CALL(detector_, SetPacketAudioLength(kLengthMs))
|
|
.Times(1);
|
|
EXPECT_EQ(0, dm_->SetPacketAudioLength(kLengthMs));
|
|
EXPECT_EQ(-1, dm_->SetPacketAudioLength(-1)); // Illegal parameter value.
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, PeakFound) {
|
|
// Expect DelayManager to pass on the question to the detector.
|
|
// Call twice, and let the detector return true the first time and false the
|
|
// second time.
|
|
EXPECT_CALL(detector_, peak_found())
|
|
.WillOnce(Return(true))
|
|
.WillOnce(Return(false));
|
|
EXPECT_TRUE(dm_->PeakFound());
|
|
EXPECT_FALSE(dm_->PeakFound());
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, UpdateCounters) {
|
|
// Expect DelayManager to pass on the counter update to the detector.
|
|
EXPECT_CALL(detector_, IncrementCounter(kTimeStepMs))
|
|
.Times(1);
|
|
dm_->UpdateCounters(kTimeStepMs);
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, UpdateNormal) {
|
|
SetPacketAudioLength(kFrameSizeMs);
|
|
// First packet arrival.
|
|
InsertNextPacket();
|
|
// Advance time by one frame size.
|
|
IncreaseTime(kFrameSizeMs);
|
|
// Second packet arrival.
|
|
// Expect detector update method to be called once with inter-arrival time
|
|
// equal to 1 packet, and (base) target level equal to 1 as well.
|
|
// Return false to indicate no peaks found.
|
|
EXPECT_CALL(detector_, Update(1, 1))
|
|
.WillOnce(Return(false));
|
|
InsertNextPacket();
|
|
EXPECT_EQ(1 << 8, dm_->TargetLevel()); // In Q8.
|
|
EXPECT_EQ(1, dm_->base_target_level());
|
|
int lower, higher;
|
|
dm_->BufferLimits(&lower, &higher);
|
|
// Expect |lower| to be 75% of target level, and |higher| to be target level,
|
|
// but also at least 20 ms higher than |lower|, which is the limiting case
|
|
// here.
|
|
EXPECT_EQ((1 << 8) * 3 / 4, lower);
|
|
EXPECT_EQ(lower + (20 << 8) / kFrameSizeMs, higher);
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, UpdateLongInterArrivalTime) {
|
|
SetPacketAudioLength(kFrameSizeMs);
|
|
// First packet arrival.
|
|
InsertNextPacket();
|
|
// Advance time by two frame size.
|
|
IncreaseTime(2 * kFrameSizeMs);
|
|
// Second packet arrival.
|
|
// Expect detector update method to be called once with inter-arrival time
|
|
// equal to 1 packet, and (base) target level equal to 1 as well.
|
|
// Return false to indicate no peaks found.
|
|
EXPECT_CALL(detector_, Update(2, 2))
|
|
.WillOnce(Return(false));
|
|
InsertNextPacket();
|
|
EXPECT_EQ(2 << 8, dm_->TargetLevel()); // In Q8.
|
|
EXPECT_EQ(2, dm_->base_target_level());
|
|
int lower, higher;
|
|
dm_->BufferLimits(&lower, &higher);
|
|
// Expect |lower| to be 75% of target level, and |higher| to be target level,
|
|
// but also at least 20 ms higher than |lower|, which is the limiting case
|
|
// here.
|
|
EXPECT_EQ((2 << 8) * 3 / 4, lower);
|
|
EXPECT_EQ(lower + (20 << 8) / kFrameSizeMs, higher);
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, UpdatePeakFound) {
|
|
SetPacketAudioLength(kFrameSizeMs);
|
|
// First packet arrival.
|
|
InsertNextPacket();
|
|
// Advance time by one frame size.
|
|
IncreaseTime(kFrameSizeMs);
|
|
// Second packet arrival.
|
|
// Expect detector update method to be called once with inter-arrival time
|
|
// equal to 1 packet, and (base) target level equal to 1 as well.
|
|
// Return true to indicate that peaks are found. Let the peak height be 5.
|
|
EXPECT_CALL(detector_, Update(1, 1))
|
|
.WillOnce(Return(true));
|
|
EXPECT_CALL(detector_, MaxPeakHeight())
|
|
.WillOnce(Return(5));
|
|
InsertNextPacket();
|
|
EXPECT_EQ(5 << 8, dm_->TargetLevel());
|
|
EXPECT_EQ(1, dm_->base_target_level()); // Base target level is w/o peaks.
|
|
int lower, higher;
|
|
dm_->BufferLimits(&lower, &higher);
|
|
// Expect |lower| to be 75% of target level, and |higher| to be target level.
|
|
EXPECT_EQ((5 << 8) * 3 / 4, lower);
|
|
EXPECT_EQ(5 << 8, higher);
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, TargetDelay) {
|
|
SetPacketAudioLength(kFrameSizeMs);
|
|
// First packet arrival.
|
|
InsertNextPacket();
|
|
// Advance time by one frame size.
|
|
IncreaseTime(kFrameSizeMs);
|
|
// Second packet arrival.
|
|
// Expect detector update method to be called once with inter-arrival time
|
|
// equal to 1 packet, and (base) target level equal to 1 as well.
|
|
// Return false to indicate no peaks found.
|
|
EXPECT_CALL(detector_, Update(1, 1))
|
|
.WillOnce(Return(false));
|
|
InsertNextPacket();
|
|
const int kExpectedTarget = 1;
|
|
EXPECT_EQ(kExpectedTarget << 8, dm_->TargetLevel()); // In Q8.
|
|
EXPECT_EQ(1, dm_->base_target_level());
|
|
int lower, higher;
|
|
dm_->BufferLimits(&lower, &higher);
|
|
// Expect |lower| to be 75% of base target level, and |higher| to be
|
|
// lower + 20 ms headroom.
|
|
EXPECT_EQ((1 << 8) * 3 / 4, lower);
|
|
EXPECT_EQ(lower + (20 << 8) / kFrameSizeMs, higher);
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, MaxAndRequiredDelay) {
|
|
const int kExpectedTarget = 5;
|
|
const int kTimeIncrement = kExpectedTarget * kFrameSizeMs;
|
|
SetPacketAudioLength(kFrameSizeMs);
|
|
// First packet arrival.
|
|
InsertNextPacket();
|
|
// Second packet arrival.
|
|
// Expect detector update method to be called once with inter-arrival time
|
|
// equal to |kExpectedTarget| packet. Return true to indicate peaks found.
|
|
EXPECT_CALL(detector_, Update(kExpectedTarget, _))
|
|
.WillRepeatedly(Return(true));
|
|
EXPECT_CALL(detector_, MaxPeakHeight())
|
|
.WillRepeatedly(Return(kExpectedTarget));
|
|
IncreaseTime(kTimeIncrement);
|
|
InsertNextPacket();
|
|
|
|
// No limit is set.
|
|
EXPECT_EQ(kExpectedTarget << 8, dm_->TargetLevel());
|
|
|
|
int kMaxDelayPackets = kExpectedTarget - 2;
|
|
int kMaxDelayMs = kMaxDelayPackets * kFrameSizeMs;
|
|
EXPECT_TRUE(dm_->SetMaximumDelay(kMaxDelayMs));
|
|
IncreaseTime(kTimeIncrement);
|
|
InsertNextPacket();
|
|
EXPECT_EQ(kExpectedTarget * kFrameSizeMs, dm_->least_required_delay_ms());
|
|
EXPECT_EQ(kMaxDelayPackets << 8, dm_->TargetLevel());
|
|
|
|
// Target level at least should be one packet.
|
|
EXPECT_FALSE(dm_->SetMaximumDelay(kFrameSizeMs - 1));
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, MinAndRequiredDelay) {
|
|
const int kExpectedTarget = 5;
|
|
const int kTimeIncrement = kExpectedTarget * kFrameSizeMs;
|
|
SetPacketAudioLength(kFrameSizeMs);
|
|
// First packet arrival.
|
|
InsertNextPacket();
|
|
// Second packet arrival.
|
|
// Expect detector update method to be called once with inter-arrival time
|
|
// equal to |kExpectedTarget| packet. Return true to indicate peaks found.
|
|
EXPECT_CALL(detector_, Update(kExpectedTarget, _))
|
|
.WillRepeatedly(Return(true));
|
|
EXPECT_CALL(detector_, MaxPeakHeight())
|
|
.WillRepeatedly(Return(kExpectedTarget));
|
|
IncreaseTime(kTimeIncrement);
|
|
InsertNextPacket();
|
|
|
|
// No limit is applied.
|
|
EXPECT_EQ(kExpectedTarget << 8, dm_->TargetLevel());
|
|
|
|
int kMinDelayPackets = kExpectedTarget + 2;
|
|
int kMinDelayMs = kMinDelayPackets * kFrameSizeMs;
|
|
dm_->SetMinimumDelay(kMinDelayMs);
|
|
IncreaseTime(kTimeIncrement);
|
|
InsertNextPacket();
|
|
EXPECT_EQ(kExpectedTarget * kFrameSizeMs, dm_->least_required_delay_ms());
|
|
EXPECT_EQ(kMinDelayPackets << 8, dm_->TargetLevel());
|
|
}
|
|
|
|
TEST_F(DelayManagerTest, Failures) {
|
|
// Wrong sample rate.
|
|
EXPECT_EQ(-1, dm_->Update(0, 0, -1));
|
|
// Wrong packet size.
|
|
EXPECT_EQ(-1, dm_->SetPacketAudioLength(0));
|
|
EXPECT_EQ(-1, dm_->SetPacketAudioLength(-1));
|
|
|
|
// Minimum delay higher than a maximum delay is not accepted.
|
|
EXPECT_TRUE(dm_->SetMaximumDelay(10));
|
|
EXPECT_FALSE(dm_->SetMinimumDelay(20));
|
|
|
|
// Maximum delay less than minimum delay is not accepted.
|
|
EXPECT_TRUE(dm_->SetMaximumDelay(100));
|
|
EXPECT_TRUE(dm_->SetMinimumDelay(80));
|
|
EXPECT_FALSE(dm_->SetMaximumDelay(60));
|
|
}
|
|
|
|
} // namespace webrtc
|