/*
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* Copyright (c) 2015 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 <string>
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#include "testing/gtest/include/gtest/gtest.h"
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#include "webrtc/audio/audio_receive_stream.h"
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#include "webrtc/audio/conversion.h"
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#include "webrtc/call/mock/mock_congestion_controller.h"
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#include "webrtc/modules/bitrate_controller/include/mock/mock_bitrate_controller.h"
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#include "webrtc/modules/pacing/packet_router.h"
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#include "webrtc/modules/remote_bitrate_estimator/include/mock/mock_remote_bitrate_estimator.h"
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#include "webrtc/modules/rtp_rtcp/source/byte_io.h"
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#include "webrtc/modules/utility/include/mock/mock_process_thread.h"
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#include "webrtc/system_wrappers/include/clock.h"
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#include "webrtc/test/mock_voe_channel_proxy.h"
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#include "webrtc/test/mock_voice_engine.h"
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#include "webrtc/video/call_stats.h"
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namespace webrtc {
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namespace test {
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namespace {
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using testing::_;
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using testing::Return;
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AudioDecodingCallStats MakeAudioDecodeStatsForTest() {
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AudioDecodingCallStats audio_decode_stats;
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audio_decode_stats.calls_to_silence_generator = 234;
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audio_decode_stats.calls_to_neteq = 567;
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audio_decode_stats.decoded_normal = 890;
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audio_decode_stats.decoded_plc = 123;
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audio_decode_stats.decoded_cng = 456;
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audio_decode_stats.decoded_plc_cng = 789;
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return audio_decode_stats;
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}
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const int kChannelId = 2;
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const uint32_t kRemoteSsrc = 1234;
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const uint32_t kLocalSsrc = 5678;
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const size_t kOneByteExtensionHeaderLength = 4;
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const size_t kOneByteExtensionLength = 4;
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const int kAbsSendTimeId = 2;
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const int kAudioLevelId = 3;
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const int kTransportSequenceNumberId = 4;
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const int kJitterBufferDelay = -7;
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const int kPlayoutBufferDelay = 302;
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const unsigned int kSpeechOutputLevel = 99;
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const CallStatistics kCallStats = {
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345, 678, 901, 234, -12, 3456, 7890, 567, 890, 123};
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const CodecInst kCodecInst = {
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123, "codec_name_recv", 96000, -187, 0, -103};
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const NetworkStatistics kNetworkStats = {
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123, 456, false, 0, 0, 789, 12, 345, 678, 901, -1, -1, -1, -1, -1, 0};
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const AudioDecodingCallStats kAudioDecodeStats = MakeAudioDecodeStatsForTest();
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struct ConfigHelper {
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ConfigHelper()
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: simulated_clock_(123456),
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call_stats_(&simulated_clock_),
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congestion_controller_(&process_thread_,
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&call_stats_,
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&bitrate_observer_) {
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using testing::Invoke;
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EXPECT_CALL(voice_engine_,
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RegisterVoiceEngineObserver(_)).WillOnce(Return(0));
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EXPECT_CALL(voice_engine_,
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DeRegisterVoiceEngineObserver()).WillOnce(Return(0));
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AudioState::Config config;
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config.voice_engine = &voice_engine_;
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audio_state_ = AudioState::Create(config);
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EXPECT_CALL(voice_engine_, ChannelProxyFactory(kChannelId))
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.WillOnce(Invoke([this](int channel_id) {
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EXPECT_FALSE(channel_proxy_);
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channel_proxy_ = new testing::StrictMock<MockVoEChannelProxy>();
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EXPECT_CALL(*channel_proxy_, SetLocalSSRC(kLocalSsrc)).Times(1);
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EXPECT_CALL(*channel_proxy_,
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SetReceiveAbsoluteSenderTimeStatus(true, kAbsSendTimeId))
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.Times(1);
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EXPECT_CALL(*channel_proxy_,
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SetReceiveAudioLevelIndicationStatus(true, kAudioLevelId))
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.Times(1);
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EXPECT_CALL(*channel_proxy_, SetCongestionControlObjects(
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nullptr, nullptr, &packet_router_))
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.Times(1);
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EXPECT_CALL(congestion_controller_, packet_router())
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.WillOnce(Return(&packet_router_));
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EXPECT_CALL(*channel_proxy_,
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SetCongestionControlObjects(nullptr, nullptr, nullptr))
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.Times(1);
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return channel_proxy_;
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}));
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stream_config_.voe_channel_id = kChannelId;
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stream_config_.rtp.local_ssrc = kLocalSsrc;
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stream_config_.rtp.remote_ssrc = kRemoteSsrc;
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stream_config_.rtp.extensions.push_back(
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RtpExtension(RtpExtension::kAbsSendTime, kAbsSendTimeId));
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stream_config_.rtp.extensions.push_back(
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RtpExtension(RtpExtension::kAudioLevel, kAudioLevelId));
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}
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MockCongestionController* congestion_controller() {
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return &congestion_controller_;
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}
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MockRemoteBitrateEstimator* remote_bitrate_estimator() {
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return &remote_bitrate_estimator_;
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}
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AudioReceiveStream::Config& config() { return stream_config_; }
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rtc::scoped_refptr<AudioState> audio_state() { return audio_state_; }
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MockVoiceEngine& voice_engine() { return voice_engine_; }
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void SetupMockForBweFeedback(bool send_side_bwe) {
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EXPECT_CALL(congestion_controller_,
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GetRemoteBitrateEstimator(send_side_bwe))
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.WillOnce(Return(&remote_bitrate_estimator_));
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EXPECT_CALL(remote_bitrate_estimator_,
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RemoveStream(stream_config_.rtp.remote_ssrc));
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}
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void SetupMockForGetStats() {
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using testing::DoAll;
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using testing::SetArgReferee;
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ASSERT_TRUE(channel_proxy_);
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EXPECT_CALL(*channel_proxy_, GetRTCPStatistics())
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.WillOnce(Return(kCallStats));
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EXPECT_CALL(*channel_proxy_, GetDelayEstimate())
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.WillOnce(Return(kJitterBufferDelay + kPlayoutBufferDelay));
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EXPECT_CALL(*channel_proxy_, GetSpeechOutputLevelFullRange())
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.WillOnce(Return(kSpeechOutputLevel));
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EXPECT_CALL(*channel_proxy_, GetNetworkStatistics())
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.WillOnce(Return(kNetworkStats));
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EXPECT_CALL(*channel_proxy_, GetDecodingCallStatistics())
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.WillOnce(Return(kAudioDecodeStats));
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EXPECT_CALL(voice_engine_, GetRecCodec(kChannelId, _))
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.WillOnce(DoAll(SetArgReferee<1>(kCodecInst), Return(0)));
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}
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private:
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SimulatedClock simulated_clock_;
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CallStats call_stats_;
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PacketRouter packet_router_;
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testing::NiceMock<MockBitrateObserver> bitrate_observer_;
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testing::NiceMock<MockProcessThread> process_thread_;
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MockCongestionController congestion_controller_;
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MockRemoteBitrateEstimator remote_bitrate_estimator_;
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testing::StrictMock<MockVoiceEngine> voice_engine_;
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rtc::scoped_refptr<AudioState> audio_state_;
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AudioReceiveStream::Config stream_config_;
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testing::StrictMock<MockVoEChannelProxy>* channel_proxy_ = nullptr;
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};
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void BuildOneByteExtension(std::vector<uint8_t>::iterator it,
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int id,
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uint32_t extension_value,
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size_t value_length) {
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const uint16_t kRtpOneByteHeaderExtensionId = 0xBEDE;
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ByteWriter<uint16_t>::WriteBigEndian(&(*it), kRtpOneByteHeaderExtensionId);
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it += 2;
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ByteWriter<uint16_t>::WriteBigEndian(&(*it), kOneByteExtensionLength / 4);
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it += 2;
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const size_t kExtensionDataLength = kOneByteExtensionLength - 1;
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uint32_t shifted_value = extension_value
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<< (8 * (kExtensionDataLength - value_length));
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*it = (id << 4) + (value_length - 1);
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++it;
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ByteWriter<uint32_t, kExtensionDataLength>::WriteBigEndian(&(*it),
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shifted_value);
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}
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std::vector<uint8_t> CreateRtpHeaderWithOneByteExtension(
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int extension_id,
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uint32_t extension_value,
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size_t value_length) {
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std::vector<uint8_t> header;
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header.resize(webrtc::kRtpHeaderSize + kOneByteExtensionHeaderLength +
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kOneByteExtensionLength);
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header[0] = 0x80; // Version 2.
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header[0] |= 0x10; // Set extension bit.
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header[1] = 100; // Payload type.
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header[1] |= 0x80; // Marker bit is set.
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ByteWriter<uint16_t>::WriteBigEndian(&header[2], 0x1234); // Sequence number.
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ByteWriter<uint32_t>::WriteBigEndian(&header[4], 0x5678); // Timestamp.
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ByteWriter<uint32_t>::WriteBigEndian(&header[8], 0x4321); // SSRC.
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BuildOneByteExtension(header.begin() + webrtc::kRtpHeaderSize, extension_id,
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extension_value, value_length);
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return header;
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}
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} // namespace
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TEST(AudioReceiveStreamTest, ConfigToString) {
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AudioReceiveStream::Config config;
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config.rtp.remote_ssrc = kRemoteSsrc;
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config.rtp.local_ssrc = kLocalSsrc;
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config.rtp.extensions.push_back(
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RtpExtension(RtpExtension::kAbsSendTime, kAbsSendTimeId));
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config.voe_channel_id = kChannelId;
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config.combined_audio_video_bwe = true;
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EXPECT_EQ(
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"{rtp: {remote_ssrc: 1234, local_ssrc: 5678, extensions: [{name: "
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"http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time, id: 2}]}, "
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"receive_transport: nullptr, rtcp_send_transport: nullptr, "
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"voe_channel_id: 2, combined_audio_video_bwe: true}",
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config.ToString());
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}
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TEST(AudioReceiveStreamTest, ConstructDestruct) {
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ConfigHelper helper;
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internal::AudioReceiveStream recv_stream(
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helper.congestion_controller(), helper.config(), helper.audio_state());
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}
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MATCHER_P(VerifyHeaderExtension, expected_extension, "") {
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return arg.extension.hasAbsoluteSendTime ==
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expected_extension.hasAbsoluteSendTime &&
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arg.extension.absoluteSendTime ==
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expected_extension.absoluteSendTime &&
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arg.extension.hasTransportSequenceNumber ==
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expected_extension.hasTransportSequenceNumber &&
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arg.extension.transportSequenceNumber ==
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expected_extension.transportSequenceNumber;
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}
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TEST(AudioReceiveStreamTest, AudioPacketUpdatesBweWithTimestamp) {
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ConfigHelper helper;
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helper.config().combined_audio_video_bwe = true;
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helper.SetupMockForBweFeedback(false);
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internal::AudioReceiveStream recv_stream(
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helper.congestion_controller(), helper.config(), helper.audio_state());
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const int kAbsSendTimeValue = 1234;
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std::vector<uint8_t> rtp_packet =
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CreateRtpHeaderWithOneByteExtension(kAbsSendTimeId, kAbsSendTimeValue, 3);
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PacketTime packet_time(5678000, 0);
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const size_t kExpectedHeaderLength = 20;
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RTPHeaderExtension expected_extension;
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expected_extension.hasAbsoluteSendTime = true;
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expected_extension.absoluteSendTime = kAbsSendTimeValue;
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EXPECT_CALL(*helper.remote_bitrate_estimator(),
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IncomingPacket(packet_time.timestamp / 1000,
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rtp_packet.size() - kExpectedHeaderLength,
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VerifyHeaderExtension(expected_extension), false))
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.Times(1);
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EXPECT_TRUE(
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recv_stream.DeliverRtp(&rtp_packet[0], rtp_packet.size(), packet_time));
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}
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TEST(AudioReceiveStreamTest, AudioPacketUpdatesBweFeedback) {
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ConfigHelper helper;
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helper.config().combined_audio_video_bwe = true;
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helper.config().rtp.transport_cc = true;
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helper.config().rtp.extensions.push_back(RtpExtension(
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RtpExtension::kTransportSequenceNumber, kTransportSequenceNumberId));
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helper.SetupMockForBweFeedback(true);
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internal::AudioReceiveStream recv_stream(
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helper.congestion_controller(), helper.config(), helper.audio_state());
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const int kTransportSequenceNumberValue = 1234;
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std::vector<uint8_t> rtp_packet = CreateRtpHeaderWithOneByteExtension(
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kTransportSequenceNumberId, kTransportSequenceNumberValue, 2);
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PacketTime packet_time(5678000, 0);
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const size_t kExpectedHeaderLength = 20;
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RTPHeaderExtension expected_extension;
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expected_extension.hasTransportSequenceNumber = true;
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expected_extension.transportSequenceNumber = kTransportSequenceNumberValue;
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EXPECT_CALL(*helper.remote_bitrate_estimator(),
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IncomingPacket(packet_time.timestamp / 1000,
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rtp_packet.size() - kExpectedHeaderLength,
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VerifyHeaderExtension(expected_extension), false))
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.Times(1);
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EXPECT_TRUE(
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recv_stream.DeliverRtp(&rtp_packet[0], rtp_packet.size(), packet_time));
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}
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TEST(AudioReceiveStreamTest, GetStats) {
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ConfigHelper helper;
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internal::AudioReceiveStream recv_stream(
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helper.congestion_controller(), helper.config(), helper.audio_state());
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helper.SetupMockForGetStats();
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AudioReceiveStream::Stats stats = recv_stream.GetStats();
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EXPECT_EQ(kRemoteSsrc, stats.remote_ssrc);
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EXPECT_EQ(static_cast<int64_t>(kCallStats.bytesReceived), stats.bytes_rcvd);
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EXPECT_EQ(static_cast<uint32_t>(kCallStats.packetsReceived),
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stats.packets_rcvd);
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EXPECT_EQ(kCallStats.cumulativeLost, stats.packets_lost);
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EXPECT_EQ(Q8ToFloat(kCallStats.fractionLost), stats.fraction_lost);
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EXPECT_EQ(std::string(kCodecInst.plname), stats.codec_name);
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EXPECT_EQ(kCallStats.extendedMax, stats.ext_seqnum);
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EXPECT_EQ(kCallStats.jitterSamples / (kCodecInst.plfreq / 1000),
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stats.jitter_ms);
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EXPECT_EQ(kNetworkStats.currentBufferSize, stats.jitter_buffer_ms);
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EXPECT_EQ(kNetworkStats.preferredBufferSize,
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stats.jitter_buffer_preferred_ms);
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EXPECT_EQ(static_cast<uint32_t>(kJitterBufferDelay + kPlayoutBufferDelay),
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stats.delay_estimate_ms);
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EXPECT_EQ(static_cast<int32_t>(kSpeechOutputLevel), stats.audio_level);
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EXPECT_EQ(Q14ToFloat(kNetworkStats.currentExpandRate), stats.expand_rate);
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EXPECT_EQ(Q14ToFloat(kNetworkStats.currentSpeechExpandRate),
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stats.speech_expand_rate);
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EXPECT_EQ(Q14ToFloat(kNetworkStats.currentSecondaryDecodedRate),
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stats.secondary_decoded_rate);
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EXPECT_EQ(Q14ToFloat(kNetworkStats.currentAccelerateRate),
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stats.accelerate_rate);
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EXPECT_EQ(Q14ToFloat(kNetworkStats.currentPreemptiveRate),
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stats.preemptive_expand_rate);
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EXPECT_EQ(kAudioDecodeStats.calls_to_silence_generator,
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stats.decoding_calls_to_silence_generator);
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EXPECT_EQ(kAudioDecodeStats.calls_to_neteq, stats.decoding_calls_to_neteq);
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EXPECT_EQ(kAudioDecodeStats.decoded_normal, stats.decoding_normal);
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EXPECT_EQ(kAudioDecodeStats.decoded_plc, stats.decoding_plc);
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EXPECT_EQ(kAudioDecodeStats.decoded_cng, stats.decoding_cng);
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EXPECT_EQ(kAudioDecodeStats.decoded_plc_cng, stats.decoding_plc_cng);
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EXPECT_EQ(kCallStats.capture_start_ntp_time_ms_,
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stats.capture_start_ntp_time_ms);
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}
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} // namespace test
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} // namespace webrtc
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