| /* |
| * Copyright 2017 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. |
| */ |
| |
| #include "video/video_receive_stream2.h" |
| |
| #include <algorithm> |
| #include <cstddef> |
| #include <deque> |
| #include <limits> |
| #include <memory> |
| #include <ostream> |
| #include <queue> |
| #include <tuple> |
| #include <utility> |
| #include <vector> |
| |
| #include "absl/memory/memory.h" |
| #include "absl/types/optional.h" |
| #include "api/environment/environment.h" |
| #include "api/environment/environment_factory.h" |
| #include "api/metronome/test/fake_metronome.h" |
| #include "api/test/mock_video_decoder.h" |
| #include "api/test/mock_video_decoder_factory.h" |
| #include "api/test/time_controller.h" |
| #include "api/units/frequency.h" |
| #include "api/units/time_delta.h" |
| #include "api/video/encoded_image.h" |
| #include "api/video/recordable_encoded_frame.h" |
| #include "api/video/test/video_frame_matchers.h" |
| #include "api/video/video_frame.h" |
| #include "api/video_codecs/sdp_video_format.h" |
| #include "api/video_codecs/video_decoder.h" |
| #include "call/rtp_stream_receiver_controller.h" |
| #include "call/video_receive_stream.h" |
| #include "common_video/test/utilities.h" |
| #include "media/engine/fake_webrtc_call.h" |
| #include "modules/pacing/packet_router.h" |
| #include "modules/rtp_rtcp/source/rtp_packet_to_send.h" |
| #include "modules/video_coding/encoded_frame.h" |
| #include "rtc_base/logging.h" |
| #include "system_wrappers/include/clock.h" |
| #include "test/fake_decoder.h" |
| #include "test/fake_encoded_frame.h" |
| #include "test/gmock.h" |
| #include "test/gtest.h" |
| #include "test/mock_transport.h" |
| #include "test/rtcp_packet_parser.h" |
| #include "test/time_controller/simulated_time_controller.h" |
| #include "test/video_decoder_proxy_factory.h" |
| #include "video/call_stats2.h" |
| |
| namespace webrtc { |
| |
| // Printing SdpVideoFormat for gmock argument matchers. |
| void PrintTo(const SdpVideoFormat& value, std::ostream* os) { |
| *os << value.ToString(); |
| } |
| |
| void PrintTo(const RecordableEncodedFrame::EncodedResolution& value, |
| std::ostream* os) { |
| *os << value.width << "x" << value.height; |
| } |
| |
| void PrintTo(const RecordableEncodedFrame& value, std::ostream* os) { |
| *os << "RecordableEncodedFrame(render_time=" << value.render_time() |
| << " resolution=" << ::testing::PrintToString(value.resolution()) << ")"; |
| } |
| |
| } // namespace webrtc |
| |
| namespace webrtc { |
| |
| namespace { |
| |
| using test::video_frame_matchers::NtpTimestamp; |
| using test::video_frame_matchers::PacketInfos; |
| using test::video_frame_matchers::Rotation; |
| using ::testing::_; |
| using ::testing::AllOf; |
| using ::testing::AnyNumber; |
| using ::testing::ElementsAreArray; |
| using ::testing::Eq; |
| using ::testing::Field; |
| using ::testing::InSequence; |
| using ::testing::Invoke; |
| using ::testing::IsEmpty; |
| using ::testing::Optional; |
| using ::testing::Pointee; |
| using ::testing::Property; |
| using ::testing::Return; |
| using ::testing::SizeIs; |
| using ::testing::WithoutArgs; |
| |
| auto RenderedFrameWith(::testing::Matcher<VideoFrame> m) { |
| return Optional(m); |
| } |
| auto RenderedFrame() { |
| return RenderedFrameWith(_); |
| } |
| testing::Matcher<absl::optional<VideoFrame>> DidNotReceiveFrame() { |
| return Eq(absl::nullopt); |
| } |
| |
| constexpr TimeDelta kDefaultTimeOut = TimeDelta::Millis(50); |
| constexpr int kDefaultNumCpuCores = 2; |
| |
| constexpr Timestamp kStartTime = Timestamp::Millis(1'337'000); |
| constexpr Frequency k30Fps = Frequency::Hertz(30); |
| constexpr TimeDelta k30FpsDelay = 1 / k30Fps; |
| constexpr Frequency kRtpTimestampHz = Frequency::KiloHertz(90); |
| constexpr uint32_t k30FpsRtpTimestampDelta = kRtpTimestampHz / k30Fps; |
| constexpr uint32_t kFirstRtpTimestamp = 90000; |
| |
| class FakeVideoRenderer : public rtc::VideoSinkInterface<VideoFrame> { |
| public: |
| explicit FakeVideoRenderer(TimeController* time_controller) |
| : time_controller_(time_controller) {} |
| ~FakeVideoRenderer() override = default; |
| |
| void OnFrame(const VideoFrame& frame) override { |
| RTC_LOG(LS_VERBOSE) << "Received frame with timestamp=" |
| << frame.rtp_timestamp(); |
| if (!last_frame_.empty()) { |
| RTC_LOG(LS_INFO) << "Already had frame queue with timestamp=" |
| << last_frame_.back().rtp_timestamp(); |
| } |
| last_frame_.push_back(frame); |
| } |
| |
| // If `advance_time`, then the clock will always advance by `timeout`. |
| absl::optional<VideoFrame> WaitForFrame(TimeDelta timeout, |
| bool advance_time = false) { |
| auto start = time_controller_->GetClock()->CurrentTime(); |
| if (last_frame_.empty()) { |
| time_controller_->AdvanceTime(TimeDelta::Zero()); |
| time_controller_->Wait([this] { return !last_frame_.empty(); }, timeout); |
| } |
| absl::optional<VideoFrame> ret; |
| if (!last_frame_.empty()) { |
| ret = last_frame_.front(); |
| last_frame_.pop_front(); |
| } |
| if (advance_time) { |
| time_controller_->AdvanceTime( |
| timeout - (time_controller_->GetClock()->CurrentTime() - start)); |
| } |
| return ret; |
| } |
| |
| private: |
| std::deque<VideoFrame> last_frame_; |
| TimeController* const time_controller_; |
| }; |
| |
| MATCHER_P2(MatchResolution, w, h, "") { |
| return arg.resolution().width == w && arg.resolution().height == h; |
| } |
| |
| MATCHER_P(RtpTimestamp, timestamp, "") { |
| if (arg.rtp_timestamp() != timestamp) { |
| *result_listener->stream() |
| << "rtp timestamp was " << arg.rtp_timestamp() << " != " << timestamp; |
| return false; |
| } |
| return true; |
| } |
| |
| // Rtp timestamp for in order frame at 30fps. |
| uint32_t RtpTimestampForFrame(int id) { |
| return kFirstRtpTimestamp + id * k30FpsRtpTimestampDelta; |
| } |
| |
| // Receive time for in order frame at 30fps. |
| Timestamp ReceiveTimeForFrame(int id) { |
| return kStartTime + id * k30FpsDelay; |
| } |
| |
| } // namespace |
| |
| class VideoReceiveStream2Test : public ::testing::TestWithParam<bool> { |
| public: |
| auto DefaultDecodeAction() { |
| return Invoke(&fake_decoder_, &test::FakeDecoder::Decode); |
| } |
| |
| bool UseMetronome() const { return GetParam(); } |
| |
| VideoReceiveStream2Test() |
| : time_controller_(kStartTime), |
| env_(CreateEnvironment(time_controller_.CreateTaskQueueFactory(), |
| time_controller_.GetClock())), |
| config_(&mock_transport_, &mock_h264_decoder_factory_), |
| call_stats_(&env_.clock(), time_controller_.GetMainThread()), |
| fake_renderer_(&time_controller_), |
| fake_metronome_(TimeDelta::Millis(16)), |
| decode_sync_(&env_.clock(), |
| &fake_metronome_, |
| time_controller_.GetMainThread()), |
| h264_decoder_factory_(&mock_decoder_) { |
| // By default, mock decoder factory is backed by VideoDecoderProxyFactory. |
| ON_CALL(mock_h264_decoder_factory_, Create) |
| .WillByDefault(Invoke(&h264_decoder_factory_, |
| &test::VideoDecoderProxyFactory::Create)); |
| |
| // By default, mock decode will wrap the fake decoder. |
| ON_CALL(mock_decoder_, Configure) |
| .WillByDefault(Invoke(&fake_decoder_, &test::FakeDecoder::Configure)); |
| ON_CALL(mock_decoder_, Decode(_, _)).WillByDefault(DefaultDecodeAction()); |
| ON_CALL(mock_decoder_, RegisterDecodeCompleteCallback) |
| .WillByDefault( |
| Invoke(&fake_decoder_, |
| &test::FakeDecoder::RegisterDecodeCompleteCallback)); |
| ON_CALL(mock_decoder_, Release) |
| .WillByDefault(Invoke(&fake_decoder_, &test::FakeDecoder::Release)); |
| ON_CALL(mock_transport_, SendRtcp) |
| .WillByDefault( |
| Invoke(&rtcp_packet_parser_, &test::RtcpPacketParser::Parse)); |
| } |
| |
| ~VideoReceiveStream2Test() override { |
| if (video_receive_stream_) { |
| video_receive_stream_->Stop(); |
| video_receive_stream_->UnregisterFromTransport(); |
| } |
| time_controller_.AdvanceTime(TimeDelta::Zero()); |
| } |
| |
| void SetUp() override { |
| config_.rtp.remote_ssrc = 1111; |
| config_.rtp.local_ssrc = 2222; |
| config_.renderer = &fake_renderer_; |
| VideoReceiveStreamInterface::Decoder h264_decoder; |
| h264_decoder.payload_type = 99; |
| h264_decoder.video_format = SdpVideoFormat::H264(); |
| h264_decoder.video_format.parameters.insert( |
| {"sprop-parameter-sets", "Z0IACpZTBYmI,aMljiA=="}); |
| VideoReceiveStreamInterface::Decoder h265_decoder; |
| h265_decoder.payload_type = 100; |
| h265_decoder.video_format = SdpVideoFormat("H265"); |
| |
| config_.decoders = {h265_decoder, h264_decoder}; |
| |
| RecreateReceiveStream(); |
| } |
| |
| void RecreateReceiveStream( |
| absl::optional<VideoReceiveStreamInterface::RecordingState> state = |
| absl::nullopt) { |
| if (video_receive_stream_) { |
| video_receive_stream_->UnregisterFromTransport(); |
| video_receive_stream_ = nullptr; |
| } |
| timing_ = new VCMTiming(&env_.clock(), env_.field_trials()); |
| video_receive_stream_ = |
| std::make_unique<webrtc::internal::VideoReceiveStream2>( |
| env_, &fake_call_, kDefaultNumCpuCores, &packet_router_, |
| config_.Copy(), &call_stats_, absl::WrapUnique(timing_), |
| &nack_periodic_processor_, |
| UseMetronome() ? &decode_sync_ : nullptr); |
| video_receive_stream_->RegisterWithTransport( |
| &rtp_stream_receiver_controller_); |
| if (state) |
| video_receive_stream_->SetAndGetRecordingState(std::move(*state), false); |
| } |
| |
| protected: |
| GlobalSimulatedTimeController time_controller_; |
| Environment env_; |
| NackPeriodicProcessor nack_periodic_processor_; |
| testing::NiceMock<MockVideoDecoderFactory> mock_h264_decoder_factory_; |
| VideoReceiveStreamInterface::Config config_; |
| internal::CallStats call_stats_; |
| testing::NiceMock<MockVideoDecoder> mock_decoder_; |
| FakeVideoRenderer fake_renderer_; |
| cricket::FakeCall fake_call_; |
| MockTransport mock_transport_; |
| test::RtcpPacketParser rtcp_packet_parser_; |
| PacketRouter packet_router_; |
| RtpStreamReceiverController rtp_stream_receiver_controller_; |
| std::unique_ptr<webrtc::internal::VideoReceiveStream2> video_receive_stream_; |
| VCMTiming* timing_; |
| test::FakeMetronome fake_metronome_; |
| DecodeSynchronizer decode_sync_; |
| |
| private: |
| test::VideoDecoderProxyFactory h264_decoder_factory_; |
| test::FakeDecoder fake_decoder_; |
| }; |
| |
| TEST_P(VideoReceiveStream2Test, CreateFrameFromH264FmtpSpropAndIdr) { |
| constexpr uint8_t idr_nalu[] = {0x05, 0xFF, 0xFF, 0xFF}; |
| RtpPacketToSend rtppacket(nullptr); |
| uint8_t* payload = rtppacket.AllocatePayload(sizeof(idr_nalu)); |
| memcpy(payload, idr_nalu, sizeof(idr_nalu)); |
| rtppacket.SetMarker(true); |
| rtppacket.SetSsrc(1111); |
| rtppacket.SetPayloadType(99); |
| rtppacket.SetSequenceNumber(1); |
| rtppacket.SetTimestamp(0); |
| EXPECT_CALL(mock_decoder_, RegisterDecodeCompleteCallback(_)); |
| video_receive_stream_->Start(); |
| EXPECT_CALL(mock_decoder_, Decode(_, _)); |
| RtpPacketReceived parsed_packet; |
| ASSERT_TRUE(parsed_packet.Parse(rtppacket.data(), rtppacket.size())); |
| rtp_stream_receiver_controller_.OnRtpPacket(parsed_packet); |
| EXPECT_CALL(mock_decoder_, Release()); |
| |
| time_controller_.AdvanceTime(TimeDelta::Zero()); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, PlayoutDelay) { |
| const VideoPlayoutDelay kPlayoutDelay(TimeDelta::Millis(123), |
| TimeDelta::Millis(321)); |
| std::unique_ptr<test::FakeEncodedFrame> test_frame = |
| test::FakeFrameBuilder() |
| .Id(0) |
| .PlayoutDelay(kPlayoutDelay) |
| .AsLast() |
| .Build(); |
| |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame)); |
| auto timings = timing_->GetTimings(); |
| EXPECT_EQ(kPlayoutDelay.min(), timings.min_playout_delay); |
| EXPECT_EQ(kPlayoutDelay.max(), timings.max_playout_delay); |
| |
| // Check that the biggest minimum delay is chosen. |
| video_receive_stream_->SetMinimumPlayoutDelay(400); |
| timings = timing_->GetTimings(); |
| EXPECT_EQ(400, timings.min_playout_delay.ms()); |
| |
| // Check base minimum delay validation. |
| EXPECT_FALSE(video_receive_stream_->SetBaseMinimumPlayoutDelayMs(12345)); |
| EXPECT_FALSE(video_receive_stream_->SetBaseMinimumPlayoutDelayMs(-1)); |
| EXPECT_TRUE(video_receive_stream_->SetBaseMinimumPlayoutDelayMs(500)); |
| timings = timing_->GetTimings(); |
| EXPECT_EQ(500, timings.min_playout_delay.ms()); |
| |
| // Check that intermidiate values are remembered and the biggest remembered |
| // is chosen. |
| video_receive_stream_->SetBaseMinimumPlayoutDelayMs(0); |
| timings = timing_->GetTimings(); |
| EXPECT_EQ(400, timings.min_playout_delay.ms()); |
| |
| video_receive_stream_->SetMinimumPlayoutDelay(0); |
| timings = timing_->GetTimings(); |
| EXPECT_EQ(123, timings.min_playout_delay.ms()); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, RenderParametersSetToDefaultValues) { |
| // Default render parameters. |
| const VideoFrame::RenderParameters kDefaultRenderParameters; |
| // Default with no playout delay set. |
| std::unique_ptr<test::FakeEncodedFrame> test_frame0 = |
| test::FakeFrameBuilder().Id(0).AsLast().Build(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame0)); |
| EXPECT_EQ(timing_->RenderParameters(), kDefaultRenderParameters); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, UseLowLatencyRenderingSetFromPlayoutDelay) { |
| std::unique_ptr<test::FakeEncodedFrame> test_frame0 = |
| test::FakeFrameBuilder() |
| .Id(0) |
| .PlayoutDelay(VideoPlayoutDelay::Minimal()) |
| .AsLast() |
| .Build(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame0)); |
| EXPECT_TRUE(timing_->RenderParameters().use_low_latency_rendering); |
| |
| std::unique_ptr<test::FakeEncodedFrame> test_frame1 = |
| test::FakeFrameBuilder() |
| .Id(1) |
| .PlayoutDelay({TimeDelta::Zero(), TimeDelta::Millis(500)}) |
| .AsLast() |
| .Build(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame1)); |
| EXPECT_TRUE(timing_->RenderParameters().use_low_latency_rendering); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, MaxCompositionDelaySetFromMaxPlayoutDelay) { |
| // The max composition delay is dependent on the number of frames in the |
| // pre-decode queue. It's therefore important to advance the time as the test |
| // runs to get the correct expectations of max_composition_delay_in_frames. |
| video_receive_stream_->Start(); |
| // Max composition delay not set if no playout delay is set. |
| std::unique_ptr<test::FakeEncodedFrame> test_frame0 = |
| test::FakeFrameBuilder() |
| .Id(0) |
| .Time(RtpTimestampForFrame(0)) |
| .ReceivedTime(ReceiveTimeForFrame(0)) |
| .AsLast() |
| .Build(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame0)); |
| EXPECT_THAT(timing_->RenderParameters().max_composition_delay_in_frames, |
| Eq(absl::nullopt)); |
| time_controller_.AdvanceTime(k30FpsDelay); |
| |
| // Max composition delay not set for playout delay 0,0. |
| std::unique_ptr<test::FakeEncodedFrame> test_frame1 = |
| test::FakeFrameBuilder() |
| .Id(1) |
| .Time(RtpTimestampForFrame(1)) |
| .ReceivedTime(ReceiveTimeForFrame(1)) |
| .PlayoutDelay(VideoPlayoutDelay::Minimal()) |
| .AsLast() |
| .Build(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame1)); |
| EXPECT_THAT(timing_->RenderParameters().max_composition_delay_in_frames, |
| Eq(absl::nullopt)); |
| time_controller_.AdvanceTime(k30FpsDelay); |
| |
| // Max composition delay not set for playout delay X,Y, where X,Y>0. |
| std::unique_ptr<test::FakeEncodedFrame> test_frame2 = |
| test::FakeFrameBuilder() |
| .Id(2) |
| .Time(RtpTimestampForFrame(2)) |
| .ReceivedTime(ReceiveTimeForFrame(2)) |
| .PlayoutDelay({TimeDelta::Millis(10), TimeDelta::Millis(30)}) |
| .AsLast() |
| .Build(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame2)); |
| EXPECT_THAT(timing_->RenderParameters().max_composition_delay_in_frames, |
| Eq(absl::nullopt)); |
| |
| time_controller_.AdvanceTime(k30FpsDelay); |
| |
| // Max composition delay set if playout delay X,Y, where X=0,Y>0. |
| const int kExpectedMaxCompositionDelayInFrames = 3; // ~50 ms at 60 fps. |
| std::unique_ptr<test::FakeEncodedFrame> test_frame3 = |
| test::FakeFrameBuilder() |
| .Id(3) |
| .Time(RtpTimestampForFrame(3)) |
| .ReceivedTime(ReceiveTimeForFrame(3)) |
| .PlayoutDelay({TimeDelta::Zero(), TimeDelta::Millis(50)}) |
| .AsLast() |
| .Build(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame3)); |
| EXPECT_THAT(timing_->RenderParameters().max_composition_delay_in_frames, |
| Optional(kExpectedMaxCompositionDelayInFrames)); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, LazyDecoderCreation) { |
| constexpr uint8_t idr_nalu[] = {0x05, 0xFF, 0xFF, 0xFF}; |
| RtpPacketToSend rtppacket(nullptr); |
| uint8_t* payload = rtppacket.AllocatePayload(sizeof(idr_nalu)); |
| memcpy(payload, idr_nalu, sizeof(idr_nalu)); |
| rtppacket.SetMarker(true); |
| rtppacket.SetSsrc(1111); |
| // H265 payload type. |
| rtppacket.SetPayloadType(99); |
| rtppacket.SetSequenceNumber(1); |
| rtppacket.SetTimestamp(0); |
| |
| // No decoders are created by default. |
| EXPECT_CALL(mock_h264_decoder_factory_, Create).Times(0); |
| video_receive_stream_->Start(); |
| time_controller_.AdvanceTime(TimeDelta::Zero()); |
| |
| EXPECT_TRUE( |
| testing::Mock::VerifyAndClearExpectations(&mock_h264_decoder_factory_)); |
| // Verify that the decoder is created when we receive payload data and tries |
| // to decode a frame. |
| EXPECT_CALL(mock_h264_decoder_factory_, |
| Create(_, Field(&SdpVideoFormat::name, Eq("H264")))); |
| EXPECT_CALL(mock_decoder_, Configure); |
| EXPECT_CALL(mock_decoder_, RegisterDecodeCompleteCallback); |
| EXPECT_CALL(mock_decoder_, Decode(_, _)); |
| RtpPacketReceived parsed_packet; |
| ASSERT_TRUE(parsed_packet.Parse(rtppacket.data(), rtppacket.size())); |
| rtp_stream_receiver_controller_.OnRtpPacket(parsed_packet); |
| EXPECT_CALL(mock_decoder_, Release); |
| |
| // Make sure the decoder thread had a chance to run. |
| time_controller_.AdvanceTime(TimeDelta::Zero()); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, PassesNtpTime) { |
| const Timestamp kNtpTimestamp = Timestamp::Millis(12345); |
| std::unique_ptr<test::FakeEncodedFrame> test_frame = |
| test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .NtpTime(kNtpTimestamp) |
| .AsLast() |
| .Build(); |
| |
| video_receive_stream_->Start(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), |
| RenderedFrameWith(NtpTimestamp(kNtpTimestamp))); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, PassesRotation) { |
| const webrtc::VideoRotation kRotation = webrtc::kVideoRotation_180; |
| std::unique_ptr<test::FakeEncodedFrame> test_frame = test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .Rotation(kRotation) |
| .AsLast() |
| .Build(); |
| |
| video_receive_stream_->Start(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), |
| RenderedFrameWith(Rotation(kRotation))); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, PassesPacketInfos) { |
| RtpPacketInfos packet_infos = CreatePacketInfos(3); |
| auto test_frame = test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .PacketInfos(packet_infos) |
| .AsLast() |
| .Build(); |
| |
| video_receive_stream_->Start(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), |
| RenderedFrameWith(PacketInfos(ElementsAreArray(packet_infos)))); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, RenderedFrameUpdatesGetSources) { |
| constexpr uint32_t kSsrc = 1111; |
| constexpr uint32_t kCsrc = 9001; |
| constexpr uint32_t kRtpTimestamp = 12345; |
| |
| // Prepare one video frame with per-packet information. |
| auto test_frame = |
| test::FakeFrameBuilder().Id(0).PayloadType(99).AsLast().Build(); |
| RtpPacketInfos packet_infos; |
| { |
| RtpPacketInfos::vector_type infos; |
| |
| RtpPacketInfo info; |
| info.set_ssrc(kSsrc); |
| info.set_csrcs({kCsrc}); |
| info.set_rtp_timestamp(kRtpTimestamp); |
| |
| info.set_receive_time(env_.clock().CurrentTime() - TimeDelta::Millis(5000)); |
| infos.push_back(info); |
| |
| info.set_receive_time(env_.clock().CurrentTime() - TimeDelta::Millis(3000)); |
| infos.push_back(info); |
| |
| info.set_receive_time(env_.clock().CurrentTime() - TimeDelta::Millis(2000)); |
| infos.push_back(info); |
| |
| info.set_receive_time(env_.clock().CurrentTime() - TimeDelta::Millis(1000)); |
| infos.push_back(info); |
| |
| packet_infos = RtpPacketInfos(std::move(infos)); |
| } |
| test_frame->SetPacketInfos(packet_infos); |
| |
| // Start receive stream. |
| video_receive_stream_->Start(); |
| EXPECT_THAT(video_receive_stream_->GetSources(), IsEmpty()); |
| |
| // Render one video frame. |
| Timestamp timestamp_min = env_.clock().CurrentTime(); |
| video_receive_stream_->OnCompleteFrame(std::move(test_frame)); |
| // Verify that the per-packet information is passed to the renderer. |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), |
| RenderedFrameWith(PacketInfos(ElementsAreArray(packet_infos)))); |
| Timestamp timestamp_max = env_.clock().CurrentTime(); |
| |
| // Verify that the per-packet information also updates `GetSources()`. |
| std::vector<RtpSource> sources = video_receive_stream_->GetSources(); |
| ASSERT_THAT(sources, SizeIs(2)); |
| { |
| auto it = std::find_if(sources.begin(), sources.end(), |
| [](const RtpSource& source) { |
| return source.source_type() == RtpSourceType::SSRC; |
| }); |
| ASSERT_NE(it, sources.end()); |
| |
| EXPECT_EQ(it->source_id(), kSsrc); |
| EXPECT_EQ(it->source_type(), RtpSourceType::SSRC); |
| EXPECT_EQ(it->rtp_timestamp(), kRtpTimestamp); |
| EXPECT_GE(it->timestamp(), timestamp_min); |
| EXPECT_LE(it->timestamp(), timestamp_max); |
| } |
| { |
| auto it = std::find_if(sources.begin(), sources.end(), |
| [](const RtpSource& source) { |
| return source.source_type() == RtpSourceType::CSRC; |
| }); |
| ASSERT_NE(it, sources.end()); |
| |
| EXPECT_EQ(it->source_id(), kCsrc); |
| EXPECT_EQ(it->source_type(), RtpSourceType::CSRC); |
| EXPECT_EQ(it->rtp_timestamp(), kRtpTimestamp); |
| EXPECT_GE(it->timestamp(), timestamp_min); |
| EXPECT_LE(it->timestamp(), timestamp_max); |
| } |
| } |
| |
| std::unique_ptr<test::FakeEncodedFrame> MakeFrameWithResolution( |
| VideoFrameType frame_type, |
| int picture_id, |
| int width, |
| int height) { |
| auto frame = |
| test::FakeFrameBuilder().Id(picture_id).PayloadType(99).AsLast().Build(); |
| frame->SetFrameType(frame_type); |
| frame->_encodedWidth = width; |
| frame->_encodedHeight = height; |
| return frame; |
| } |
| |
| std::unique_ptr<test::FakeEncodedFrame> MakeFrame(VideoFrameType frame_type, |
| int picture_id) { |
| return MakeFrameWithResolution(frame_type, picture_id, 320, 240); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, PassesFrameWhenEncodedFramesCallbackSet) { |
| testing::MockFunction<void(const RecordableEncodedFrame&)> callback; |
| video_receive_stream_->Start(); |
| EXPECT_CALL(callback, Call); |
| video_receive_stream_->SetAndGetRecordingState( |
| VideoReceiveStreamInterface::RecordingState(callback.AsStdFunction()), |
| true); |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrame(VideoFrameType::kVideoFrameKey, 0)); |
| EXPECT_TRUE(fake_renderer_.WaitForFrame(kDefaultTimeOut)); |
| |
| EXPECT_THAT(rtcp_packet_parser_.pli()->num_packets(), Eq(1)); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, MovesEncodedFrameDispatchStateWhenReCreating) { |
| testing::MockFunction<void(const RecordableEncodedFrame&)> callback; |
| video_receive_stream_->Start(); |
| // Expect a key frame request over RTCP. |
| video_receive_stream_->SetAndGetRecordingState( |
| VideoReceiveStreamInterface::RecordingState(callback.AsStdFunction()), |
| true); |
| video_receive_stream_->Stop(); |
| VideoReceiveStreamInterface::RecordingState old_state = |
| video_receive_stream_->SetAndGetRecordingState( |
| VideoReceiveStreamInterface::RecordingState(), false); |
| RecreateReceiveStream(std::move(old_state)); |
| |
| EXPECT_THAT(rtcp_packet_parser_.pli()->num_packets(), Eq(1)); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, RequestsKeyFramesUntilKeyFrameReceived) { |
| // Recreate receive stream with shorter delay to test rtx. |
| TimeDelta rtx_delay = TimeDelta::Millis(50); |
| config_.rtp.nack.rtp_history_ms = rtx_delay.ms(); |
| auto tick = rtx_delay / 2; |
| RecreateReceiveStream(); |
| video_receive_stream_->Start(); |
| |
| video_receive_stream_->GenerateKeyFrame(); |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrame(VideoFrameType::kVideoFrameDelta, 0)); |
| fake_renderer_.WaitForFrame(kDefaultTimeOut); |
| time_controller_.AdvanceTime(tick); |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrame(VideoFrameType::kVideoFrameDelta, 1)); |
| fake_renderer_.WaitForFrame(kDefaultTimeOut); |
| time_controller_.AdvanceTime(TimeDelta::Zero()); |
| testing::Mock::VerifyAndClearExpectations(&mock_transport_); |
| |
| EXPECT_THAT(rtcp_packet_parser_.pli()->num_packets(), Eq(1)); |
| |
| // T+keyframetimeout: still no key frame received, expect key frame request |
| // sent again. |
| time_controller_.AdvanceTime(tick); |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrame(VideoFrameType::kVideoFrameDelta, 2)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), RenderedFrame()); |
| testing::Mock::VerifyAndClearExpectations(&mock_transport_); |
| |
| EXPECT_THAT(rtcp_packet_parser_.pli()->num_packets(), Eq(2)); |
| |
| // T+keyframetimeout: now send a key frame - we should not observe new key |
| // frame requests after this. |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrame(VideoFrameType::kVideoFrameKey, 3)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), RenderedFrame()); |
| time_controller_.AdvanceTime(2 * tick); |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrame(VideoFrameType::kVideoFrameDelta, 4)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), RenderedFrame()); |
| |
| EXPECT_THAT(rtcp_packet_parser_.pli()->num_packets(), Eq(2)); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, |
| DispatchesEncodedFrameSequenceStartingWithKeyframeWithoutResolution) { |
| video_receive_stream_->Start(); |
| testing::MockFunction<void(const RecordableEncodedFrame&)> callback; |
| video_receive_stream_->SetAndGetRecordingState( |
| VideoReceiveStreamInterface::RecordingState(callback.AsStdFunction()), |
| /*generate_key_frame=*/false); |
| |
| InSequence s; |
| EXPECT_CALL(callback, |
| Call(MatchResolution(test::FakeDecoder::kDefaultWidth, |
| test::FakeDecoder::kDefaultHeight))); |
| EXPECT_CALL(callback, Call); |
| |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrameWithResolution(VideoFrameType::kVideoFrameKey, 0, 0, 0)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), RenderedFrame()); |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrameWithResolution(VideoFrameType::kVideoFrameDelta, 1, 0, 0)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), RenderedFrame()); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, |
| DispatchesEncodedFrameSequenceStartingWithKeyframeWithResolution) { |
| video_receive_stream_->Start(); |
| testing::MockFunction<void(const RecordableEncodedFrame&)> callback; |
| video_receive_stream_->SetAndGetRecordingState( |
| VideoReceiveStreamInterface::RecordingState(callback.AsStdFunction()), |
| /*generate_key_frame=*/false); |
| |
| InSequence s; |
| EXPECT_CALL(callback, Call(MatchResolution(1080u, 720u))); |
| EXPECT_CALL(callback, Call); |
| |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrameWithResolution(VideoFrameType::kVideoFrameKey, 0, 1080, 720)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), RenderedFrame()); |
| video_receive_stream_->OnCompleteFrame( |
| MakeFrameWithResolution(VideoFrameType::kVideoFrameDelta, 1, 0, 0)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(kDefaultTimeOut), RenderedFrame()); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, DependantFramesAreScheduled) { |
| video_receive_stream_->Start(); |
| |
| auto key_frame = test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .Time(kFirstRtpTimestamp) |
| .ReceivedTime(kStartTime) |
| .AsLast() |
| .Build(); |
| auto delta_frame = test::FakeFrameBuilder() |
| .Id(1) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(1)) |
| .ReceivedTime(ReceiveTimeForFrame(1)) |
| .Refs({0}) |
| .AsLast() |
| .Build(); |
| |
| // Expect frames are decoded in order. |
| InSequence seq; |
| EXPECT_CALL(mock_decoder_, Decode(test::RtpTimestamp(kFirstRtpTimestamp), _)); |
| EXPECT_CALL(mock_decoder_, Decode(test::RtpTimestamp(kFirstRtpTimestamp + |
| k30FpsRtpTimestampDelta), |
| _)) |
| .Times(1); |
| video_receive_stream_->OnCompleteFrame(std::move(key_frame)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), RenderedFrame()); |
| |
| time_controller_.AdvanceTime(k30FpsDelay); |
| video_receive_stream_->OnCompleteFrame(std::move(delta_frame)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay), RenderedFrame()); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, FramesScheduledInOrder) { |
| video_receive_stream_->Start(); |
| |
| auto key_frame = test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .Time(kFirstRtpTimestamp) |
| .AsLast() |
| .Build(); |
| auto delta_frame1 = test::FakeFrameBuilder() |
| .Id(1) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(1)) |
| .Refs({0}) |
| .AsLast() |
| .Build(); |
| auto delta_frame2 = test::FakeFrameBuilder() |
| .Id(2) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(2)) |
| .Refs({1}) |
| .AsLast() |
| .Build(); |
| |
| // Expect frames are decoded in order despite delta_frame1 arriving first. |
| InSequence seq; |
| EXPECT_CALL(mock_decoder_, Decode(test::RtpTimestamp(kFirstRtpTimestamp), _)) |
| .Times(1); |
| EXPECT_CALL(mock_decoder_, |
| Decode(test::RtpTimestamp(RtpTimestampForFrame(1)), _)) |
| .Times(1); |
| EXPECT_CALL(mock_decoder_, |
| Decode(test::RtpTimestamp(RtpTimestampForFrame(2)), _)) |
| .Times(1); |
| key_frame->SetReceivedTime(env_.clock().CurrentTime().ms()); |
| video_receive_stream_->OnCompleteFrame(std::move(key_frame)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), RenderedFrame()); |
| |
| delta_frame2->SetReceivedTime(env_.clock().CurrentTime().ms()); |
| video_receive_stream_->OnCompleteFrame(std::move(delta_frame2)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay), DidNotReceiveFrame()); |
| // `delta_frame1` arrives late. |
| delta_frame1->SetReceivedTime(env_.clock().CurrentTime().ms()); |
| video_receive_stream_->OnCompleteFrame(std::move(delta_frame1)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay), RenderedFrame()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay * 2), RenderedFrame()); |
| video_receive_stream_->Stop(); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, WaitsforAllSpatialLayers) { |
| video_receive_stream_->Start(); |
| auto sl0 = test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .Time(kFirstRtpTimestamp) |
| .ReceivedTime(kStartTime) |
| .Build(); |
| auto sl1 = test::FakeFrameBuilder() |
| .Id(1) |
| .PayloadType(99) |
| .ReceivedTime(kStartTime) |
| .Time(kFirstRtpTimestamp) |
| .Refs({0}) |
| .Build(); |
| auto sl2 = test::FakeFrameBuilder() |
| .Id(2) |
| .PayloadType(99) |
| .ReceivedTime(kStartTime) |
| .Time(kFirstRtpTimestamp) |
| .Refs({0, 1}) |
| .AsLast() |
| .Build(); |
| |
| // No decodes should be called until `sl2` is received. |
| EXPECT_CALL(mock_decoder_, Decode(_, _)).Times(0); |
| sl0->SetReceivedTime(env_.clock().CurrentTime().ms()); |
| video_receive_stream_->OnCompleteFrame(std::move(sl0)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), |
| DidNotReceiveFrame()); |
| video_receive_stream_->OnCompleteFrame(std::move(sl1)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), |
| DidNotReceiveFrame()); |
| // When `sl2` arrives decode should happen. |
| EXPECT_CALL(mock_decoder_, Decode(test::RtpTimestamp(kFirstRtpTimestamp), _)) |
| .Times(1); |
| video_receive_stream_->OnCompleteFrame(std::move(sl2)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), RenderedFrame()); |
| video_receive_stream_->Stop(); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, FramesFastForwardOnSystemHalt) { |
| video_receive_stream_->Start(); |
| |
| // The frame structure looks like this, |
| // F1 |
| // / |
| // F0 --> F2 |
| // |
| // In this case we will have a system halt simulated. By the time the system |
| // resumes, F1 will be old and so F2 should be decoded. |
| auto key_frame = test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .Time(kFirstRtpTimestamp) |
| .AsLast() |
| .Build(); |
| auto ffwd_frame = test::FakeFrameBuilder() |
| .Id(1) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(1)) |
| .Refs({0}) |
| .AsLast() |
| .Build(); |
| auto rendered_frame = test::FakeFrameBuilder() |
| .Id(2) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(2)) |
| .Refs({0}) |
| .AsLast() |
| .Build(); |
| InSequence seq; |
| EXPECT_CALL(mock_decoder_, Decode(test::RtpTimestamp(kFirstRtpTimestamp), _)) |
| .WillOnce(testing::DoAll(Invoke([&] { |
| // System halt will be simulated in the decode. |
| time_controller_.AdvanceTime(k30FpsDelay * 2); |
| }), |
| DefaultDecodeAction())); |
| EXPECT_CALL(mock_decoder_, |
| Decode(test::RtpTimestamp(RtpTimestampForFrame(2)), _)); |
| video_receive_stream_->OnCompleteFrame(std::move(key_frame)); |
| video_receive_stream_->OnCompleteFrame(std::move(ffwd_frame)); |
| video_receive_stream_->OnCompleteFrame(std::move(rendered_frame)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), |
| RenderedFrameWith(RtpTimestamp(RtpTimestampForFrame(0)))); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), |
| RenderedFrameWith(RtpTimestamp(RtpTimestampForFrame(2)))); |
| |
| // Check stats show correct dropped frames. |
| auto stats = video_receive_stream_->GetStats(); |
| EXPECT_EQ(stats.frames_dropped, 1u); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, BetterFrameInsertedWhileWaitingToDecodeFrame) { |
| video_receive_stream_->Start(); |
| |
| auto key_frame = test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .Time(kFirstRtpTimestamp) |
| .ReceivedTime(ReceiveTimeForFrame(0)) |
| .AsLast() |
| .Build(); |
| auto f1 = test::FakeFrameBuilder() |
| .Id(1) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(1)) |
| .ReceivedTime(ReceiveTimeForFrame(1)) |
| .Refs({0}) |
| .AsLast() |
| .Build(); |
| auto f2 = test::FakeFrameBuilder() |
| .Id(2) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(2)) |
| .ReceivedTime(ReceiveTimeForFrame(2)) |
| .Refs({0}) |
| .AsLast() |
| .Build(); |
| |
| video_receive_stream_->OnCompleteFrame(std::move(key_frame)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), RenderedFrame()); |
| |
| InSequence seq; |
| EXPECT_CALL(mock_decoder_, |
| Decode(test::RtpTimestamp(RtpTimestampForFrame(1)), _)) |
| .Times(1); |
| EXPECT_CALL(mock_decoder_, |
| Decode(test::RtpTimestamp(RtpTimestampForFrame(2)), _)) |
| .Times(1); |
| // Simulate f1 arriving after f2 but before f2 is decoded. |
| video_receive_stream_->OnCompleteFrame(std::move(f2)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay), DidNotReceiveFrame()); |
| video_receive_stream_->OnCompleteFrame(std::move(f1)); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay), RenderedFrame()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay), RenderedFrame()); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| // Note: This test takes a long time (~10s) to run if the fake metronome is |
| // active. Since the test needs to wait for the timestamp to rollover, it has a |
| // fake delay of around 6.5 hours. Even though time is simulated, this will be |
| // around 1,500,000 metronome tick invocations. |
| TEST_P(VideoReceiveStream2Test, RtpTimestampWrapAround) { |
| EXPECT_CALL(mock_transport_, SendRtcp).Times(AnyNumber()); |
| video_receive_stream_->Start(); |
| |
| constexpr uint32_t kBaseRtp = std::numeric_limits<uint32_t>::max() / 2; |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .Time(kBaseRtp) |
| .ReceivedTime(env_.clock().CurrentTime()) |
| .AsLast() |
| .Build()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Zero()), RenderedFrame()); |
| time_controller_.AdvanceTime(k30FpsDelay); |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(1) |
| .PayloadType(99) |
| .Time(kBaseRtp + k30FpsRtpTimestampDelta) |
| .ReceivedTime(env_.clock().CurrentTime()) |
| .AsLast() |
| .Build()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay), RenderedFrame()); |
| |
| // Pause stream so that RTP timestamp wraps around. |
| constexpr uint32_t kLastRtp = kBaseRtp + k30FpsRtpTimestampDelta; |
| constexpr uint32_t kWrapAroundRtp = |
| kLastRtp + std::numeric_limits<uint32_t>::max() / 2 + 1; |
| // Pause for corresponding delay such that RTP timestamp would increase this |
| // much at 30fps. |
| constexpr TimeDelta kWrapAroundDelay = |
| (std::numeric_limits<uint32_t>::max() / 2 + 1) / kRtpTimestampHz; |
| |
| time_controller_.AdvanceTime(kWrapAroundDelay); |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(2) |
| .PayloadType(99) |
| .Time(kWrapAroundRtp) |
| .ReceivedTime(env_.clock().CurrentTime()) |
| .AsLast() |
| .Build()); |
| EXPECT_CALL(mock_decoder_, Decode(test::RtpTimestamp(kWrapAroundRtp), _)) |
| .Times(1); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Seconds(1)), |
| RenderedFrame()); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| // If a frame was lost causing the stream to become temporarily non-decodable |
| // and the sender reduces their framerate during this time, the video stream |
| // should start decoding at the new framerate. However, if the connection is |
| // poor, a keyframe will take a long time to send. If the timing of the incoming |
| // frames was not kept up to date with the new framerate while the stream was |
| // decodable, this late frame will have a large delay as the rtp timestamp of |
| // this keyframe will look like the frame arrived early if the frame-rate was |
| // not updated. |
| TEST_P(VideoReceiveStream2Test, PoorConnectionWithFpsChangeDuringLostFrame) { |
| video_receive_stream_->Start(); |
| |
| constexpr Frequency k15Fps = Frequency::Hertz(15); |
| constexpr TimeDelta k15FpsDelay = 1 / k15Fps; |
| constexpr uint32_t k15FpsRtpTimestampDelta = kRtpTimestampHz / k15Fps; |
| |
| // Initial keyframe and frames at 30fps. |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(0)) |
| .ReceivedTime(ReceiveTimeForFrame(0)) |
| .AsLast() |
| .Build()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay, /*advance_time=*/true), |
| RenderedFrameWith(RtpTimestamp(RtpTimestampForFrame(0)))); |
| |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(1) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(1)) |
| .ReceivedTime(ReceiveTimeForFrame(1)) |
| .Refs({0}) |
| .AsLast() |
| .Build()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay, /*advance_time=*/true), |
| RenderedFrameWith(RtpTimestamp(RtpTimestampForFrame(1)))); |
| |
| // Simulate lost frame 2, followed by 2 second of frames at 30fps, followed by |
| // 2 second of frames at 15 fps, and then a keyframe. |
| time_controller_.AdvanceTime(k30FpsDelay); |
| |
| Timestamp send_30fps_end_time = |
| env_.clock().CurrentTime() + TimeDelta::Seconds(2); |
| int id = 3; |
| EXPECT_CALL(mock_transport_, SendRtcp).Times(AnyNumber()); |
| while (env_.clock().CurrentTime() < send_30fps_end_time) { |
| ++id; |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(id) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(id)) |
| .ReceivedTime(ReceiveTimeForFrame(id)) |
| .Refs({id - 1}) |
| .AsLast() |
| .Build()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay, /*advance_time=*/true), |
| Eq(absl::nullopt)); |
| } |
| uint32_t current_rtp = RtpTimestampForFrame(id); |
| Timestamp send_15fps_end_time = |
| env_.clock().CurrentTime() + TimeDelta::Seconds(2); |
| while (env_.clock().CurrentTime() < send_15fps_end_time) { |
| ++id; |
| current_rtp += k15FpsRtpTimestampDelta; |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(id) |
| .PayloadType(99) |
| .Time(current_rtp) |
| .ReceivedTime(env_.clock().CurrentTime()) |
| .Refs({id - 1}) |
| .AsLast() |
| .Build()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k15FpsDelay, /*advance_time=*/true), |
| Eq(absl::nullopt)); |
| } |
| |
| ++id; |
| current_rtp += k15FpsRtpTimestampDelta; |
| // Insert keyframe which will recover the stream. However, on a poor |
| // connection the keyframe will take significant time to send. |
| constexpr TimeDelta kKeyframeDelay = TimeDelta::Millis(200); |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(id) |
| .PayloadType(99) |
| .Time(current_rtp) |
| .ReceivedTime(env_.clock().CurrentTime() + kKeyframeDelay) |
| .AsLast() |
| .Build()); |
| // If the framerate was not updated to be 15fps from the frames that arrived |
| // previously, this will fail, as the delay will be longer. |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k15FpsDelay, /*advance_time=*/true), |
| RenderedFrameWith(RtpTimestamp(current_rtp))); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| TEST_P(VideoReceiveStream2Test, StreamShouldNotTimeoutWhileWaitingForFrame) { |
| // Disable smoothing since this makes it hard to test frame timing. |
| config_.enable_prerenderer_smoothing = false; |
| RecreateReceiveStream(); |
| |
| video_receive_stream_->Start(); |
| EXPECT_CALL(mock_transport_, SendRtcp).Times(AnyNumber()); |
| |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(0) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(0)) |
| .ReceivedTime(ReceiveTimeForFrame(0)) |
| .AsLast() |
| .Build()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay, /*advance_time=*/true), |
| RenderedFrameWith(RtpTimestamp(RtpTimestampForFrame(0)))); |
| |
| for (int id = 1; id < 30; ++id) { |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(id) |
| .PayloadType(99) |
| .Time(RtpTimestampForFrame(id)) |
| .ReceivedTime(ReceiveTimeForFrame(id)) |
| .Refs({0}) |
| .AsLast() |
| .Build()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(k30FpsDelay, /*advance_time=*/true), |
| RenderedFrameWith(RtpTimestamp(RtpTimestampForFrame(id)))); |
| } |
| |
| // Simulate a pause in the stream, followed by a decodable frame that is ready |
| // long in the future. The stream should not timeout in this case, but rather |
| // decode the frame just before the timeout. |
| time_controller_.AdvanceTime(TimeDelta::Millis(2900)); |
| uint32_t late_decode_rtp = kFirstRtpTimestamp + 200 * k30FpsRtpTimestampDelta; |
| video_receive_stream_->OnCompleteFrame( |
| test::FakeFrameBuilder() |
| .Id(121) |
| .PayloadType(99) |
| .Time(late_decode_rtp) |
| .ReceivedTime(env_.clock().CurrentTime()) |
| .AsLast() |
| .Build()); |
| EXPECT_THAT(fake_renderer_.WaitForFrame(TimeDelta::Millis(100), |
| /*advance_time=*/true), |
| RenderedFrameWith(RtpTimestamp(late_decode_rtp))); |
| |
| video_receive_stream_->Stop(); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(VideoReceiveStream2Test, |
| VideoReceiveStream2Test, |
| testing::Bool(), |
| [](const auto& test_param_info) { |
| return (test_param_info.param |
| ? "ScheduleDecodesWithMetronome" |
| : "ScheduleDecodesWithPostTask"); |
| }); |
| |
| } // namespace webrtc |
