#include "testing/gtest/include/gtest/gtest.h"
#include "webrtc/call.h"
-#include "webrtc/modules/remote_bitrate_estimator/include/rtp_to_ntp.h"
+#include "webrtc/modules/audio_coding/main/interface/audio_coding_module.h"
#include "webrtc/modules/rtp_rtcp/interface/rtp_header_parser.h"
#include "webrtc/modules/rtp_rtcp/source/rtcp_utility.h"
#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
+#include "webrtc/system_wrappers/interface/rtp_to_ntp.h"
#include "webrtc/system_wrappers/interface/scoped_ptr.h"
+#include "webrtc/system_wrappers/interface/thread_annotations.h"
+#include "webrtc/test/call_test.h"
#include "webrtc/test/direct_transport.h"
+#include "webrtc/test/encoder_settings.h"
#include "webrtc/test/fake_audio_device.h"
#include "webrtc/test/fake_decoder.h"
#include "webrtc/test/fake_encoder.h"
namespace webrtc {
-static unsigned int kLongTimeoutMs = 120 * 1000;
-static const uint32_t kSendSsrc = 0x654321;
-static const uint32_t kReceiverLocalSsrc = 0x123456;
-static const uint8_t kSendPayloadType = 125;
+class CallPerfTest : public test::CallTest {
+ protected:
+ void TestMinTransmitBitrate(bool pad_to_min_bitrate);
-class CallPerfTest : public ::testing::Test {
+ void TestCaptureNtpTime(const FakeNetworkPipe::Config& net_config,
+ int threshold_ms,
+ int start_time_ms,
+ int run_time_ms);
};
class SyncRtcpObserver : public test::RtpRtcpObserver {
public:
explicit SyncRtcpObserver(const FakeNetworkPipe::Config& config)
- : test::RtpRtcpObserver(kLongTimeoutMs, config),
- critical_section_(CriticalSectionWrapper::CreateCriticalSection()) {}
+ : test::RtpRtcpObserver(CallPerfTest::kLongTimeoutMs, config),
+ crit_(CriticalSectionWrapper::CreateCriticalSection()) {}
virtual Action OnSendRtcp(const uint8_t* packet, size_t length) OVERRIDE {
RTCPUtility::RTCPParserV2 parser(packet, length, true);
packet_type = parser.Iterate()) {
if (packet_type == RTCPUtility::kRtcpSrCode) {
const RTCPUtility::RTCPPacket& packet = parser.Packet();
- synchronization::RtcpMeasurement ntp_rtp_pair(
+ RtcpMeasurement ntp_rtp_pair(
packet.SR.NTPMostSignificant,
packet.SR.NTPLeastSignificant,
packet.SR.RTPTimestamp);
}
int64_t RtpTimestampToNtp(uint32_t timestamp) const {
- CriticalSectionScoped cs(critical_section_.get());
+ CriticalSectionScoped lock(crit_.get());
int64_t timestamp_in_ms = -1;
if (ntp_rtp_pairs_.size() == 2) {
// TODO(stefan): We can't EXPECT_TRUE on this call due to a bug in the
// RTCP sender where it sends RTCP SR before any RTP packets, which leads
// to a bogus NTP/RTP mapping.
- synchronization::RtpToNtpMs(timestamp, ntp_rtp_pairs_, ×tamp_in_ms);
+ RtpToNtpMs(timestamp, ntp_rtp_pairs_, ×tamp_in_ms);
return timestamp_in_ms;
}
return -1;
}
private:
- void StoreNtpRtpPair(synchronization::RtcpMeasurement ntp_rtp_pair) {
- CriticalSectionScoped cs(critical_section_.get());
- for (synchronization::RtcpList::iterator it = ntp_rtp_pairs_.begin();
+ void StoreNtpRtpPair(RtcpMeasurement ntp_rtp_pair) {
+ CriticalSectionScoped lock(crit_.get());
+ for (RtcpList::iterator it = ntp_rtp_pairs_.begin();
it != ntp_rtp_pairs_.end();
++it) {
if (ntp_rtp_pair.ntp_secs == it->ntp_secs &&
ntp_rtp_pairs_.push_front(ntp_rtp_pair);
}
- scoped_ptr<CriticalSectionWrapper> critical_section_;
- synchronization::RtcpList ntp_rtp_pairs_;
+ const scoped_ptr<CriticalSectionWrapper> crit_;
+ RtcpList ntp_rtp_pairs_ GUARDED_BY(crit_);
};
class VideoRtcpAndSyncObserver : public SyncRtcpObserver, public VideoRenderer {
int64_t stream_offset = latest_audio_ntp - latest_video_ntp;
std::stringstream ss;
ss << stream_offset;
- webrtc::test::PrintResult(
- "stream_offset", "", "synchronization", ss.str(), "ms", false);
+ webrtc::test::PrintResult("stream_offset",
+ "",
+ "synchronization",
+ ss.str(),
+ "ms",
+ false);
int64_t time_since_creation = now_ms - creation_time_ms_;
// During the first couple of seconds audio and video can falsely be
// estimated as being synchronized. We don't want to trigger on those.
if (time_since_creation < kStartupTimeMs)
return;
- if (abs(latest_audio_ntp - latest_video_ntp) < kInSyncThresholdMs) {
+ if (std::abs(latest_audio_ntp - latest_video_ntp) < kInSyncThresholdMs) {
if (first_time_in_sync_ == -1) {
first_time_in_sync_ = now_ms;
webrtc::test::PrintResult("sync_convergence_time",
}
private:
- Clock* clock_;
+ Clock* const clock_;
int voe_channel_;
VoEVideoSync* voe_sync_;
SyncRtcpObserver* audio_observer_;
};
TEST_F(CallPerfTest, PlaysOutAudioAndVideoInSync) {
+ class AudioPacketReceiver : public PacketReceiver {
+ public:
+ AudioPacketReceiver(int channel, VoENetwork* voe_network)
+ : channel_(channel),
+ voe_network_(voe_network),
+ parser_(RtpHeaderParser::Create()) {}
+ virtual DeliveryStatus DeliverPacket(const uint8_t* packet,
+ size_t length) OVERRIDE {
+ int ret;
+ if (parser_->IsRtcp(packet, static_cast<int>(length))) {
+ ret = voe_network_->ReceivedRTCPPacket(
+ channel_, packet, static_cast<unsigned int>(length));
+ } else {
+ ret = voe_network_->ReceivedRTPPacket(
+ channel_, packet, static_cast<unsigned int>(length), PacketTime());
+ }
+ return ret == 0 ? DELIVERY_OK : DELIVERY_PACKET_ERROR;
+ }
+
+ private:
+ int channel_;
+ VoENetwork* voe_network_;
+ scoped_ptr<RtpHeaderParser> parser_;
+ };
+
VoiceEngine* voice_engine = VoiceEngine::Create();
VoEBase* voe_base = VoEBase::GetInterface(voice_engine);
VoECodec* voe_codec = VoECodec::GetInterface(voice_engine);
FakeNetworkPipe::Config net_config;
net_config.queue_delay_ms = 500;
SyncRtcpObserver audio_observer(net_config);
- VideoRtcpAndSyncObserver observer(
- Clock::GetRealTimeClock(), channel, voe_sync, &audio_observer);
+ VideoRtcpAndSyncObserver observer(Clock::GetRealTimeClock(),
+ channel,
+ voe_sync,
+ &audio_observer);
Call::Config receiver_config(observer.ReceiveTransport());
receiver_config.voice_engine = voice_engine;
- scoped_ptr<Call> sender_call(
- Call::Create(Call::Config(observer.SendTransport())));
- scoped_ptr<Call> receiver_call(Call::Create(receiver_config));
+ CreateCalls(Call::Config(observer.SendTransport()), receiver_config);
+
CodecInst isac = {103, "ISAC", 16000, 480, 1, 32000};
EXPECT_EQ(0, voe_codec->SetSendCodec(channel, isac));
- class VoicePacketReceiver : public PacketReceiver {
- public:
- VoicePacketReceiver(int channel, VoENetwork* voe_network)
- : channel_(channel),
- voe_network_(voe_network),
- parser_(RtpHeaderParser::Create()) {}
- virtual bool DeliverPacket(const uint8_t* packet, size_t length) {
- int ret;
- if (parser_->IsRtcp(packet, static_cast<int>(length))) {
- ret = voe_network_->ReceivedRTCPPacket(
- channel_, packet, static_cast<unsigned int>(length));
- } else {
- ret = voe_network_->ReceivedRTPPacket(
- channel_, packet, static_cast<unsigned int>(length));
- }
- return ret == 0;
- }
-
- private:
- int channel_;
- VoENetwork* voe_network_;
- scoped_ptr<RtpHeaderParser> parser_;
- } voe_packet_receiver(channel, voe_network);
-
+ AudioPacketReceiver voe_packet_receiver(channel, voe_network);
audio_observer.SetReceivers(&voe_packet_receiver, &voe_packet_receiver);
internal::TransportAdapter transport_adapter(audio_observer.SendTransport());
+ transport_adapter.Enable();
EXPECT_EQ(0,
voe_network->RegisterExternalTransport(channel, transport_adapter));
- observer.SetReceivers(receiver_call->Receiver(), sender_call->Receiver());
+ observer.SetReceivers(receiver_call_->Receiver(), sender_call_->Receiver());
- test::FakeEncoder fake_encoder(Clock::GetRealTimeClock());
test::FakeDecoder fake_decoder;
- VideoSendStream::Config send_config = sender_call->GetDefaultSendConfig();
- send_config.rtp.ssrcs.push_back(kSendSsrc);
- send_config.encoder = &fake_encoder;
- send_config.internal_source = false;
- test::FakeEncoder::SetCodecSettings(&send_config.codec, 1);
- send_config.codec.plType = kSendPayloadType;
-
- VideoReceiveStream::Config receive_config =
- receiver_call->GetDefaultReceiveConfig();
- receive_config.codecs.clear();
- receive_config.codecs.push_back(send_config.codec);
- ExternalVideoDecoder decoder;
- decoder.decoder = &fake_decoder;
- decoder.payload_type = send_config.codec.plType;
- receive_config.external_decoders.push_back(decoder);
- receive_config.rtp.remote_ssrc = send_config.rtp.ssrcs[0];
- receive_config.rtp.local_ssrc = kReceiverLocalSsrc;
- receive_config.renderer = &observer;
- receive_config.audio_channel_id = channel;
-
- VideoSendStream* send_stream =
- sender_call->CreateVideoSendStream(send_config);
- VideoReceiveStream* receive_stream =
- receiver_call->CreateVideoReceiveStream(receive_config);
- scoped_ptr<test::FrameGeneratorCapturer> capturer(
- test::FrameGeneratorCapturer::Create(send_stream->Input(),
- send_config.codec.width,
- send_config.codec.height,
- 30,
- Clock::GetRealTimeClock()));
- receive_stream->StartReceiving();
- send_stream->StartSending();
- capturer->Start();
+ CreateSendConfig(1);
+ CreateMatchingReceiveConfigs();
+
+ receive_configs_[0].renderer = &observer;
+ receive_configs_[0].audio_channel_id = channel;
+
+ CreateStreams();
+
+ CreateFrameGeneratorCapturer();
+
+ Start();
fake_audio_device.Start();
EXPECT_EQ(0, voe_base->StartPlayout(channel));
EXPECT_EQ(0, voe_base->StopPlayout(channel));
fake_audio_device.Stop();
- capturer->Stop();
- send_stream->StopSending();
- receive_stream->StopReceiving();
+ Stop();
observer.StopSending();
audio_observer.StopSending();
voe_codec->Release();
voe_network->Release();
voe_sync->Release();
- sender_call->DestroyVideoSendStream(send_stream);
- receiver_call->DestroyVideoReceiveStream(receive_stream);
+
+ DestroyStreams();
+
VoiceEngine::Delete(voice_engine);
}
+
+void CallPerfTest::TestCaptureNtpTime(const FakeNetworkPipe::Config& net_config,
+ int threshold_ms,
+ int start_time_ms,
+ int run_time_ms) {
+ class CaptureNtpTimeObserver : public test::EndToEndTest,
+ public VideoRenderer {
+ public:
+ CaptureNtpTimeObserver(const FakeNetworkPipe::Config& config,
+ int threshold_ms,
+ int start_time_ms,
+ int run_time_ms)
+ : EndToEndTest(kLongTimeoutMs, config),
+ clock_(Clock::GetRealTimeClock()),
+ threshold_ms_(threshold_ms),
+ start_time_ms_(start_time_ms),
+ run_time_ms_(run_time_ms),
+ creation_time_ms_(clock_->TimeInMilliseconds()),
+ capturer_(NULL),
+ rtp_start_timestamp_set_(false),
+ rtp_start_timestamp_(0) {}
+
+ private:
+ virtual void RenderFrame(const I420VideoFrame& video_frame,
+ int time_to_render_ms) OVERRIDE {
+ if (video_frame.ntp_time_ms() <= 0) {
+ // Haven't got enough RTCP SR in order to calculate the capture ntp
+ // time.
+ return;
+ }
+
+ int64_t now_ms = clock_->TimeInMilliseconds();
+ int64_t time_since_creation = now_ms - creation_time_ms_;
+ if (time_since_creation < start_time_ms_) {
+ // Wait for |start_time_ms_| before start measuring.
+ return;
+ }
+
+ if (time_since_creation > run_time_ms_) {
+ observation_complete_->Set();
+ }
+
+ FrameCaptureTimeList::iterator iter =
+ capture_time_list_.find(video_frame.timestamp());
+ EXPECT_TRUE(iter != capture_time_list_.end());
+
+ // The real capture time has been wrapped to uint32_t before converted
+ // to rtp timestamp in the sender side. So here we convert the estimated
+ // capture time to a uint32_t 90k timestamp also for comparing.
+ uint32_t estimated_capture_timestamp =
+ 90 * static_cast<uint32_t>(video_frame.ntp_time_ms());
+ uint32_t real_capture_timestamp = iter->second;
+ int time_offset_ms = real_capture_timestamp - estimated_capture_timestamp;
+ time_offset_ms = time_offset_ms / 90;
+ std::stringstream ss;
+ ss << time_offset_ms;
+
+ webrtc::test::PrintResult(
+ "capture_ntp_time", "", "real - estimated", ss.str(), "ms", true);
+ EXPECT_TRUE(std::abs(time_offset_ms) < threshold_ms_);
+ }
+
+ virtual Action OnSendRtp(const uint8_t* packet, size_t length) {
+ RTPHeader header;
+ EXPECT_TRUE(parser_->Parse(packet, length, &header));
+
+ if (!rtp_start_timestamp_set_) {
+ // Calculate the rtp timestamp offset in order to calculate the real
+ // capture time.
+ uint32_t first_capture_timestamp =
+ 90 * static_cast<uint32_t>(capturer_->first_frame_capture_time());
+ rtp_start_timestamp_ = header.timestamp - first_capture_timestamp;
+ rtp_start_timestamp_set_ = true;
+ }
+
+ uint32_t capture_timestamp = header.timestamp - rtp_start_timestamp_;
+ capture_time_list_.insert(
+ capture_time_list_.end(),
+ std::make_pair(header.timestamp, capture_timestamp));
+ return SEND_PACKET;
+ }
+
+ virtual void OnFrameGeneratorCapturerCreated(
+ test::FrameGeneratorCapturer* frame_generator_capturer) OVERRIDE {
+ capturer_ = frame_generator_capturer;
+ }
+
+ virtual void ModifyConfigs(
+ VideoSendStream::Config* send_config,
+ std::vector<VideoReceiveStream::Config>* receive_configs,
+ std::vector<VideoStream>* video_streams) OVERRIDE {
+ (*receive_configs)[0].renderer = this;
+ // Enable the receiver side rtt calculation.
+ (*receive_configs)[0].rtp.rtcp_xr.receiver_reference_time_report = true;
+ }
+
+ virtual void PerformTest() OVERRIDE {
+ EXPECT_EQ(kEventSignaled, Wait()) << "Timed out while waiting for "
+ "estimated capture NTP time to be "
+ "within bounds.";
+ }
+
+ Clock* clock_;
+ int threshold_ms_;
+ int start_time_ms_;
+ int run_time_ms_;
+ int64_t creation_time_ms_;
+ test::FrameGeneratorCapturer* capturer_;
+ bool rtp_start_timestamp_set_;
+ uint32_t rtp_start_timestamp_;
+ typedef std::map<uint32_t, uint32_t> FrameCaptureTimeList;
+ FrameCaptureTimeList capture_time_list_;
+ } test(net_config, threshold_ms, start_time_ms, run_time_ms);
+
+ RunBaseTest(&test);
+}
+
+TEST_F(CallPerfTest, CaptureNtpTimeWithNetworkDelay) {
+ FakeNetworkPipe::Config net_config;
+ net_config.queue_delay_ms = 100;
+ // TODO(wu): lower the threshold as the calculation/estimatation becomes more
+ // accurate.
+ const int kThresholdMs = 100;
+ const int kStartTimeMs = 10000;
+ const int kRunTimeMs = 20000;
+ TestCaptureNtpTime(net_config, kThresholdMs, kStartTimeMs, kRunTimeMs);
+}
+
+TEST_F(CallPerfTest, CaptureNtpTimeWithNetworkJitter) {
+ FakeNetworkPipe::Config net_config;
+ net_config.queue_delay_ms = 100;
+ net_config.delay_standard_deviation_ms = 10;
+ // TODO(wu): lower the threshold as the calculation/estimatation becomes more
+ // accurate.
+ const int kThresholdMs = 100;
+ const int kStartTimeMs = 10000;
+ const int kRunTimeMs = 20000;
+ TestCaptureNtpTime(net_config, kThresholdMs, kStartTimeMs, kRunTimeMs);
+}
+
+TEST_F(CallPerfTest, RegisterCpuOveruseObserver) {
+ // Verifies that either a normal or overuse callback is triggered.
+ class OveruseCallbackObserver : public test::SendTest,
+ public webrtc::OveruseCallback {
+ public:
+ OveruseCallbackObserver() : SendTest(kLongTimeoutMs) {}
+
+ virtual void OnOveruse() OVERRIDE {
+ observation_complete_->Set();
+ }
+
+ virtual void OnNormalUse() OVERRIDE {
+ observation_complete_->Set();
+ }
+
+ virtual Call::Config GetSenderCallConfig() OVERRIDE {
+ Call::Config config(SendTransport());
+ config.overuse_callback = this;
+ return config;
+ }
+
+ virtual void PerformTest() OVERRIDE {
+ EXPECT_EQ(kEventSignaled, Wait())
+ << "Timed out before receiving an overuse callback.";
+ }
+ } test;
+
+ RunBaseTest(&test);
+}
+
+void CallPerfTest::TestMinTransmitBitrate(bool pad_to_min_bitrate) {
+ static const int kMaxEncodeBitrateKbps = 30;
+ static const int kMinTransmitBitrateBps = 150000;
+ static const int kMinAcceptableTransmitBitrate = 130;
+ static const int kMaxAcceptableTransmitBitrate = 170;
+ static const int kNumBitrateObservationsInRange = 100;
+ class BitrateObserver : public test::EndToEndTest, public PacketReceiver {
+ public:
+ explicit BitrateObserver(bool using_min_transmit_bitrate)
+ : EndToEndTest(kLongTimeoutMs),
+ send_stream_(NULL),
+ send_transport_receiver_(NULL),
+ pad_to_min_bitrate_(using_min_transmit_bitrate),
+ num_bitrate_observations_in_range_(0) {}
+
+ private:
+ virtual void SetReceivers(PacketReceiver* send_transport_receiver,
+ PacketReceiver* receive_transport_receiver)
+ OVERRIDE {
+ send_transport_receiver_ = send_transport_receiver;
+ test::RtpRtcpObserver::SetReceivers(this, receive_transport_receiver);
+ }
+
+ virtual DeliveryStatus DeliverPacket(const uint8_t* packet,
+ size_t length) OVERRIDE {
+ VideoSendStream::Stats stats = send_stream_->GetStats();
+ if (stats.substreams.size() > 0) {
+ assert(stats.substreams.size() == 1);
+ int bitrate_kbps = stats.substreams.begin()->second.bitrate_bps / 1000;
+ if (bitrate_kbps > 0) {
+ test::PrintResult(
+ "bitrate_stats_",
+ (pad_to_min_bitrate_ ? "min_transmit_bitrate"
+ : "without_min_transmit_bitrate"),
+ "bitrate_kbps",
+ static_cast<size_t>(bitrate_kbps),
+ "kbps",
+ false);
+ if (pad_to_min_bitrate_) {
+ if (bitrate_kbps > kMinAcceptableTransmitBitrate &&
+ bitrate_kbps < kMaxAcceptableTransmitBitrate) {
+ ++num_bitrate_observations_in_range_;
+ }
+ } else {
+ // Expect bitrate stats to roughly match the max encode bitrate.
+ if (bitrate_kbps > kMaxEncodeBitrateKbps - 5 &&
+ bitrate_kbps < kMaxEncodeBitrateKbps + 5) {
+ ++num_bitrate_observations_in_range_;
+ }
+ }
+ if (num_bitrate_observations_in_range_ ==
+ kNumBitrateObservationsInRange)
+ observation_complete_->Set();
+ }
+ }
+ return send_transport_receiver_->DeliverPacket(packet, length);
+ }
+
+ virtual void OnStreamsCreated(
+ VideoSendStream* send_stream,
+ const std::vector<VideoReceiveStream*>& receive_streams) OVERRIDE {
+ send_stream_ = send_stream;
+ }
+
+ virtual void ModifyConfigs(
+ VideoSendStream::Config* send_config,
+ std::vector<VideoReceiveStream::Config>* receive_configs,
+ std::vector<VideoStream>* video_streams) OVERRIDE {
+ if (pad_to_min_bitrate_) {
+ send_config->rtp.min_transmit_bitrate_bps = kMinTransmitBitrateBps;
+ } else {
+ assert(send_config->rtp.min_transmit_bitrate_bps == 0);
+ }
+ }
+
+ virtual void PerformTest() OVERRIDE {
+ EXPECT_EQ(kEventSignaled, Wait())
+ << "Timeout while waiting for send-bitrate stats.";
+ }
+
+ VideoSendStream* send_stream_;
+ PacketReceiver* send_transport_receiver_;
+ const bool pad_to_min_bitrate_;
+ int num_bitrate_observations_in_range_;
+ } test(pad_to_min_bitrate);
+
+ fake_encoder_.SetMaxBitrate(kMaxEncodeBitrateKbps);
+ RunBaseTest(&test);
+}
+
+TEST_F(CallPerfTest, PadsToMinTransmitBitrate) { TestMinTransmitBitrate(true); }
+
+TEST_F(CallPerfTest, NoPadWithoutMinTransmitBitrate) {
+ TestMinTransmitBitrate(false);
+}
+
} // namespace webrtc