52aa019e98
Review URL: https://webrtc-codereview.appspot.com/1329007 git-svn-id: http://webrtc.googlecode.com/svn/trunk@3899 4adac7df-926f-26a2-2b94-8c16560cd09d
295 lines
12 KiB
C++
295 lines
12 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include "webrtc/modules/pacing/include/paced_sender.h"
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using testing::_;
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namespace webrtc {
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namespace test {
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static const int kTargetBitrate = 800;
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class MockPacedSenderCallback : public PacedSender::Callback {
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public:
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MOCK_METHOD3(TimeToSendPacket,
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void(uint32_t ssrc, uint16_t sequence_number, int64_t capture_time_ms));
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MOCK_METHOD1(TimeToSendPadding,
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void(int bytes));
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};
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class PacedSenderTest : public ::testing::Test {
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protected:
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PacedSenderTest() {
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TickTime::UseFakeClock(123456);
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// Need to initialize PacedSender after we initialize clock.
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send_bucket_.reset(new PacedSender(&callback_, kTargetBitrate));
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send_bucket_->SetStatus(true);
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}
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MockPacedSenderCallback callback_;
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scoped_ptr<PacedSender> send_bucket_;
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};
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TEST_F(PacedSenderTest, QueuePacket) {
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uint32_t ssrc = 12345;
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uint16_t sequence_number = 1234;
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int64_t capture_time_ms = 56789;
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// Due to the multiplicative factor we can send 3 packets not 2 packets.
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number, capture_time_ms, 250));
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
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EXPECT_CALL(callback_,
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TimeToSendPacket(ssrc, sequence_number, capture_time_ms)).Times(0);
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TickTime::AdvanceFakeClock(4);
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EXPECT_EQ(1, send_bucket_->TimeUntilNextProcess());
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EXPECT_CALL(callback_,
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TimeToSendPacket(ssrc, sequence_number, capture_time_ms)).Times(1);
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TickTime::AdvanceFakeClock(1);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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sequence_number++;
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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}
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TEST_F(PacedSenderTest, PaceQueuedPackets) {
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uint32_t ssrc = 12345;
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uint16_t sequence_number = 1234;
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int64_t capture_time_ms = 56789;
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// Due to the multiplicative factor we can send 3 packets not 2 packets.
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for (int i = 0; i < 3; ++i) {
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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}
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for (int j = 0; j < 30; ++j) {
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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}
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EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
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for (int k = 0; k < 10; ++k) {
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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EXPECT_CALL(callback_,
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TimeToSendPacket(ssrc, _, capture_time_ms)).Times(3);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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}
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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}
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TEST_F(PacedSenderTest, PaceQueuedPacketsWithDuplicates) {
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uint32_t ssrc = 12345;
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uint16_t sequence_number = 1234;
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int64_t capture_time_ms = 56789;
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uint16_t queued_sequence_number;
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// Due to the multiplicative factor we can send 3 packets not 2 packets.
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for (int i = 0; i < 3; ++i) {
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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}
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queued_sequence_number = sequence_number;
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for (int j = 0; j < 30; ++j) {
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// Send in duplicate packets.
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number, capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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}
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EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
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for (int k = 0; k < 10; ++k) {
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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for (int i = 0; i < 3; ++i) {
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EXPECT_CALL(callback_, TimeToSendPacket(ssrc, queued_sequence_number++,
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capture_time_ms)).Times(1);
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}
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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}
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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}
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TEST_F(PacedSenderTest, Padding) {
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uint32_t ssrc = 12345;
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uint16_t sequence_number = 1234;
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int64_t capture_time_ms = 56789;
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// Due to the multiplicative factor we can send 3 packets not 2 packets.
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
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sequence_number++, capture_time_ms, 250));
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EXPECT_CALL(callback_, TimeToSendPadding(250)).Times(1);
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EXPECT_CALL(callback_,
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TimeToSendPacket(ssrc, sequence_number, capture_time_ms)).Times(0);
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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EXPECT_CALL(callback_, TimeToSendPadding(500)).Times(1);
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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}
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TEST_F(PacedSenderTest, Priority) {
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uint32_t ssrc_low_priority = 12345;
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uint32_t ssrc = 12346;
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uint16_t sequence_number = 1234;
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int64_t capture_time_ms = 56789;
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int64_t capture_time_ms_low_priority = 1234567;
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// Due to the multiplicative factor we can send 3 packets not 2 packets.
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kLowPriority,
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ssrc_low_priority, sequence_number++, capture_time_ms_low_priority, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
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ssrc, sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
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ssrc, sequence_number++, capture_time_ms, 250));
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// Expect normal and low priority to be queued and high to pass through.
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kLowPriority,
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ssrc_low_priority, sequence_number++, capture_time_ms_low_priority, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
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ssrc, sequence_number++, capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
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ssrc, sequence_number++, capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kHighPriority,
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ssrc, sequence_number++, capture_time_ms, 250));
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// Expect all high and normal priority to be sent out first.
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EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
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EXPECT_CALL(callback_, TimeToSendPacket(ssrc, _, capture_time_ms)).Times(3);
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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EXPECT_CALL(callback_, TimeToSendPacket(
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ssrc_low_priority, _, capture_time_ms_low_priority)).Times(1);
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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}
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TEST_F(PacedSenderTest, Pause) {
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uint32_t ssrc_low_priority = 12345;
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uint32_t ssrc = 12346;
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uint16_t sequence_number = 1234;
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int64_t capture_time_ms = TickTime::MillisecondTimestamp();
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TickTime::AdvanceFakeClock(10000);
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int64_t second_capture_time_ms = TickTime::MillisecondTimestamp();
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EXPECT_EQ(0, send_bucket_->QueueInMs());
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// Due to the multiplicative factor we can send 3 packets not 2 packets.
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kLowPriority,
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ssrc_low_priority, sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
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ssrc, sequence_number++, capture_time_ms, 250));
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EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
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ssrc, sequence_number++, capture_time_ms, 250));
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send_bucket_->Pause();
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// Expect everything to be queued.
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kLowPriority,
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ssrc_low_priority, sequence_number++, capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
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ssrc, sequence_number++, capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
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ssrc, sequence_number++, second_capture_time_ms, 250));
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EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kHighPriority,
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ssrc, sequence_number++, capture_time_ms, 250));
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EXPECT_EQ(TickTime::MillisecondTimestamp() - capture_time_ms,
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send_bucket_->QueueInMs());
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// Expect no packet to come out while paused.
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EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
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EXPECT_CALL(callback_, TimeToSendPacket(_, _, _)).Times(0);
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for (int i = 0; i < 10; ++i) {
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TickTime::AdvanceFakeClock(5);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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}
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// Expect high prio packets to come out first followed by all packets in the
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// way they were added.
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EXPECT_CALL(callback_, TimeToSendPacket(_, _, capture_time_ms)).Times(3);
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send_bucket_->Resume();
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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EXPECT_CALL(callback_,
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TimeToSendPacket(_, _, second_capture_time_ms)).Times(1);
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EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
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TickTime::AdvanceFakeClock(5);
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EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
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EXPECT_EQ(0, send_bucket_->Process());
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EXPECT_EQ(0, send_bucket_->QueueInMs());
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}
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} // namespace test
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} // namespace webrtc
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