147 lines
5.0 KiB
C++
147 lines
5.0 KiB
C++
/*
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* Copyright (c) 2014 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 "testing/gtest/include/gtest/gtest.h"
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#include "webrtc/video/report_block_stats.h"
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namespace webrtc {
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class ReportBlockStatsTest : public ::testing::Test {
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protected:
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ReportBlockStatsTest() : kSsrc1(0x12345), kSsrc2(0x23456) {}
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void SetUp() override {
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// kSsrc1: block 1-3.
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block1_1_.cumulativeLost = 10;
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block1_1_.fractionLost = 123;
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block1_1_.extendedHighSeqNum = 24000;
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block1_1_.jitter = 777;
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block1_1_.sourceSSRC = kSsrc1;
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block1_2_.cumulativeLost = 15;
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block1_2_.fractionLost = 0;
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block1_2_.extendedHighSeqNum = 24100;
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block1_2_.jitter = 222;
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block1_2_.sourceSSRC = kSsrc1;
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block1_3_.cumulativeLost = 50;
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block1_3_.fractionLost = 0;
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block1_3_.extendedHighSeqNum = 24200;
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block1_3_.jitter = 333;
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block1_3_.sourceSSRC = kSsrc1;
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// kSsrc2: block 1,2.
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block2_1_.cumulativeLost = 111;
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block2_1_.fractionLost = 222;
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block2_1_.extendedHighSeqNum = 8500;
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block2_1_.jitter = 555;
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block2_1_.sourceSSRC = kSsrc2;
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block2_2_.cumulativeLost = 136;
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block2_2_.fractionLost = 0;
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block2_2_.extendedHighSeqNum = 8800;
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block2_2_.jitter = 888;
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block2_2_.sourceSSRC = kSsrc2;
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ssrc1block1_.push_back(block1_1_);
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ssrc1block2_.push_back(block1_2_);
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ssrc12block1_.push_back(block1_1_);
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ssrc12block1_.push_back(block2_1_);
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ssrc12block2_.push_back(block1_2_);
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ssrc12block2_.push_back(block2_2_);
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}
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RtcpStatistics RtcpReportBlockToRtcpStatistics(
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const RTCPReportBlock& stats) {
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RtcpStatistics block;
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block.cumulative_lost = stats.cumulativeLost;
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block.fraction_lost = stats.fractionLost;
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block.extended_max_sequence_number = stats.extendedHighSeqNum;
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block.jitter = stats.jitter;
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return block;
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}
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const uint32_t kSsrc1;
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const uint32_t kSsrc2;
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RTCPReportBlock block1_1_;
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RTCPReportBlock block1_2_;
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RTCPReportBlock block1_3_;
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RTCPReportBlock block2_1_;
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RTCPReportBlock block2_2_;
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std::vector<RTCPReportBlock> ssrc1block1_;
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std::vector<RTCPReportBlock> ssrc1block2_;
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std::vector<RTCPReportBlock> ssrc12block1_;
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std::vector<RTCPReportBlock> ssrc12block2_;
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};
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TEST_F(ReportBlockStatsTest, AggregateAndStore_NoSsrc) {
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ReportBlockStats stats;
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std::vector<RTCPReportBlock> empty;
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RTCPReportBlock aggregated = stats.AggregateAndStore(empty);
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EXPECT_EQ(0U, aggregated.fractionLost);
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EXPECT_EQ(0U, aggregated.cumulativeLost);
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EXPECT_EQ(0U, aggregated.jitter);
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EXPECT_EQ(0U, aggregated.extendedHighSeqNum);
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}
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TEST_F(ReportBlockStatsTest, AggregateAndStore_OneSsrc) {
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ReportBlockStats stats;
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RTCPReportBlock aggregated = stats.AggregateAndStore(ssrc1block1_);
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// One ssrc, no aggregation done.
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EXPECT_EQ(123U, aggregated.fractionLost);
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EXPECT_EQ(10U, aggregated.cumulativeLost);
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EXPECT_EQ(777U, aggregated.jitter);
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EXPECT_EQ(24000U, aggregated.extendedHighSeqNum);
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aggregated = stats.AggregateAndStore(ssrc1block2_);
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EXPECT_EQ(0U, aggregated.fractionLost);
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EXPECT_EQ(15U, aggregated.cumulativeLost);
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EXPECT_EQ(222U, aggregated.jitter);
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EXPECT_EQ(24100U, aggregated.extendedHighSeqNum);
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// fl: 100 * (15-10) / (24100-24000) = 5%
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EXPECT_EQ(5, stats.FractionLostInPercent());
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}
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TEST_F(ReportBlockStatsTest, AggregateAndStore_TwoSsrcs) {
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ReportBlockStats stats;
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RTCPReportBlock aggregated = stats.AggregateAndStore(ssrc12block1_);
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EXPECT_EQ(0U, aggregated.fractionLost);
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EXPECT_EQ(10U + 111U, aggregated.cumulativeLost);
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EXPECT_EQ((777U + 555U) / 2, aggregated.jitter);
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EXPECT_EQ(0U, aggregated.extendedHighSeqNum);
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aggregated = stats.AggregateAndStore(ssrc12block2_);
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// fl: 255 * ((15-10) + (136-111)) / ((24100-24000) + (8800-8500)) = 19
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EXPECT_EQ(19U, aggregated.fractionLost);
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EXPECT_EQ(15U + 136U, aggregated.cumulativeLost);
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EXPECT_EQ((222U + 888U) / 2, aggregated.jitter);
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EXPECT_EQ(0U, aggregated.extendedHighSeqNum);
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// fl: 100 * ((15-10) + (136-111)) / ((24100-24000) + (8800-8500)) = 7%
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EXPECT_EQ(7, stats.FractionLostInPercent());
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}
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TEST_F(ReportBlockStatsTest, StoreAndGetFractionLost) {
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const uint32_t kRemoteSsrc = 1;
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ReportBlockStats stats;
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EXPECT_EQ(-1, stats.FractionLostInPercent());
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// First block.
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stats.Store(RtcpReportBlockToRtcpStatistics(block1_1_), kRemoteSsrc, kSsrc1);
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EXPECT_EQ(-1, stats.FractionLostInPercent());
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// fl: 100 * (15-10) / (24100-24000) = 5%
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stats.Store(RtcpReportBlockToRtcpStatistics(block1_2_), kRemoteSsrc, kSsrc1);
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EXPECT_EQ(5, stats.FractionLostInPercent());
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// fl: 100 * (50-10) / (24200-24000) = 20%
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stats.Store(RtcpReportBlockToRtcpStatistics(block1_3_), kRemoteSsrc, kSsrc1);
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EXPECT_EQ(20, stats.FractionLostInPercent());
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}
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} // namespace webrtc
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