/* * Copyright (c) 2014 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. */ #ifndef WEBRTC_MEDIA_BASE_VIDEOENGINE_UNITTEST_H_ // NOLINT #define WEBRTC_MEDIA_BASE_VIDEOENGINE_UNITTEST_H_ #include #include #include #include "webrtc/base/bytebuffer.h" #include "webrtc/base/gunit.h" #include "webrtc/base/timeutils.h" #include "webrtc/call.h" #include "webrtc/media/base/fakenetworkinterface.h" #include "webrtc/media/base/fakevideocapturer.h" #include "webrtc/media/base/fakevideorenderer.h" #include "webrtc/media/base/mediachannel.h" #include "webrtc/media/base/streamparams.h" #include "webrtc/media/engine/fakewebrtccall.h" #define EXPECT_FRAME_WAIT(c, w, h, t) \ EXPECT_EQ_WAIT((c), renderer_.num_rendered_frames(), (t)); \ EXPECT_EQ((w), renderer_.width()); \ EXPECT_EQ((h), renderer_.height()); \ EXPECT_EQ(0, renderer_.errors()); \ #define EXPECT_FRAME_ON_RENDERER_WAIT(r, c, w, h, t) \ EXPECT_EQ_WAIT((c), (r).num_rendered_frames(), (t)); \ EXPECT_EQ((w), (r).width()); \ EXPECT_EQ((h), (r).height()); \ EXPECT_EQ(0, (r).errors()); \ #define EXPECT_GT_FRAME_ON_RENDERER_WAIT(r, c, w, h, t) \ EXPECT_TRUE_WAIT((r).num_rendered_frames() >= (c) && \ (w) == (r).width() && \ (h) == (r).height(), (t)); \ EXPECT_EQ(0, (r).errors()); static const uint32_t kTimeout = 5000U; static const uint32_t kDefaultReceiveSsrc = 0; static const uint32_t kSsrc = 1234u; static const uint32_t kRtxSsrc = 4321u; static const uint32_t kSsrcs4[] = {1, 2, 3, 4}; inline bool IsEqualRes(const cricket::VideoCodec& a, int w, int h, int fps) { return a.width == w && a.height == h && a.framerate == fps; } inline bool IsEqualCodec(const cricket::VideoCodec& a, const cricket::VideoCodec& b) { return a.id == b.id && a.name == b.name && IsEqualRes(a, b.width, b.height, b.framerate); } namespace std { inline std::ostream& operator<<(std::ostream& s, const cricket::VideoCodec& c) { s << "{" << c.name << "(" << c.id << "), " << c.width << "x" << c.height << "x" << c.framerate << "}"; return s; } } // namespace std inline int TimeBetweenSend(const cricket::VideoCodec& codec) { return static_cast( cricket::VideoFormat::FpsToInterval(codec.framerate) / rtc::kNumNanosecsPerMillisec); } template class VideoMediaChannelTest : public testing::Test, public sigslot::has_slots<> { protected: VideoMediaChannelTest() : call_(webrtc::Call::Create(webrtc::Call::Config())) {} virtual cricket::VideoCodec DefaultCodec() = 0; virtual cricket::StreamParams DefaultSendStreamParams() { return cricket::StreamParams::CreateLegacy(kSsrc); } virtual void SetUp() { engine_.Init(); channel_.reset(engine_.CreateChannel(call_.get(), cricket::MediaConfig(), cricket::VideoOptions())); EXPECT_TRUE(channel_.get() != NULL); network_interface_.SetDestination(channel_.get()); channel_->SetInterface(&network_interface_); media_error_ = cricket::VideoMediaChannel::ERROR_NONE; cricket::VideoRecvParameters parameters; parameters.codecs = engine_.codecs(); channel_->SetRecvParameters(parameters); EXPECT_TRUE(channel_->AddSendStream(DefaultSendStreamParams())); video_capturer_.reset(CreateFakeVideoCapturer()); cricket::VideoFormat format(640, 480, cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420); EXPECT_EQ(cricket::CS_RUNNING, video_capturer_->Start(format)); EXPECT_TRUE( channel_->SetVideoSend(kSsrc, true, nullptr, video_capturer_.get())); } virtual cricket::FakeVideoCapturer* CreateFakeVideoCapturer() { return new cricket::FakeVideoCapturer(); } // Utility method to setup an additional stream to send and receive video. // Used to test send and recv between two streams. void SetUpSecondStream() { SetUpSecondStreamWithNoRecv(); // Setup recv for second stream. EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(kSsrc + 2))); // Make the second renderer available for use by a new stream. EXPECT_TRUE(channel_->SetSink(kSsrc + 2, &renderer2_)); } // Setup an additional stream just to send video. Defer add recv stream. // This is required if you want to test unsignalled recv of video rtp packets. void SetUpSecondStreamWithNoRecv() { // SetUp() already added kSsrc make sure duplicate SSRCs cant be added. EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(kSsrc))); EXPECT_TRUE(channel_->SetSink(kSsrc, &renderer_)); EXPECT_FALSE(channel_->AddSendStream( cricket::StreamParams::CreateLegacy(kSsrc))); EXPECT_TRUE(channel_->AddSendStream( cricket::StreamParams::CreateLegacy(kSsrc + 2))); // We dont add recv for the second stream. // Setup the receive and renderer for second stream after send. video_capturer_2_.reset(CreateFakeVideoCapturer()); cricket::VideoFormat format(640, 480, cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420); EXPECT_EQ(cricket::CS_RUNNING, video_capturer_2_->Start(format)); EXPECT_TRUE(channel_->SetVideoSend(kSsrc + 2, true, nullptr, video_capturer_2_.get())); } virtual void TearDown() { channel_.reset(); } bool SetDefaultCodec() { return SetOneCodec(DefaultCodec()); } bool SetOneCodec(int pt, const char* name, int w, int h, int fr) { return SetOneCodec(cricket::VideoCodec(pt, name, w, h, fr)); } bool SetOneCodec(const cricket::VideoCodec& codec) { cricket::VideoFormat capture_format(codec.width, codec.height, cricket::VideoFormat::FpsToInterval(codec.framerate), cricket::FOURCC_I420); if (video_capturer_) { EXPECT_EQ(cricket::CS_RUNNING, video_capturer_->Start(capture_format)); } if (video_capturer_2_) { EXPECT_EQ(cricket::CS_RUNNING, video_capturer_2_->Start(capture_format)); } bool sending = channel_->sending(); bool success = SetSend(false); if (success) { cricket::VideoSendParameters parameters; parameters.codecs.push_back(codec); success = channel_->SetSendParameters(parameters); } if (success) { success = SetSend(sending); } return success; } bool SetSend(bool send) { return channel_->SetSend(send); } int DrainOutgoingPackets() { int packets = 0; do { packets = NumRtpPackets(); // 100 ms should be long enough. rtc::Thread::Current()->ProcessMessages(100); } while (NumRtpPackets() > packets); return NumRtpPackets(); } bool SendFrame() { if (video_capturer_2_) { video_capturer_2_->CaptureFrame(); } return video_capturer_.get() && video_capturer_->CaptureFrame(); } bool WaitAndSendFrame(int wait_ms) { bool ret = rtc::Thread::Current()->ProcessMessages(wait_ms); ret &= SendFrame(); return ret; } // Sends frames and waits for the decoder to be fully initialized. // Returns the number of frames that were sent. int WaitForDecoder() { #if defined(HAVE_OPENMAX) // Send enough frames for the OpenMAX decoder to continue processing, and // return the number of frames sent. // Send frames for a full kTimeout's worth of 15fps video. int frame_count = 0; while (frame_count < static_cast(kTimeout) / 66) { EXPECT_TRUE(WaitAndSendFrame(66)); ++frame_count; } return frame_count; #else return 0; #endif } bool SendCustomVideoFrame(int w, int h) { if (!video_capturer_.get()) return false; return video_capturer_->CaptureCustomFrame(w, h, cricket::FOURCC_I420); } int NumRtpBytes() { return network_interface_.NumRtpBytes(); } int NumRtpBytes(uint32_t ssrc) { return network_interface_.NumRtpBytes(ssrc); } int NumRtpPackets() { return network_interface_.NumRtpPackets(); } int NumRtpPackets(uint32_t ssrc) { return network_interface_.NumRtpPackets(ssrc); } int NumSentSsrcs() { return network_interface_.NumSentSsrcs(); } const rtc::CopyOnWriteBuffer* GetRtpPacket(int index) { return network_interface_.GetRtpPacket(index); } int NumRtcpPackets() { return network_interface_.NumRtcpPackets(); } const rtc::CopyOnWriteBuffer* GetRtcpPacket(int index) { return network_interface_.GetRtcpPacket(index); } static int GetPayloadType(const rtc::CopyOnWriteBuffer* p) { int pt = -1; ParseRtpPacket(p, NULL, &pt, NULL, NULL, NULL, NULL); return pt; } static bool ParseRtpPacket(const rtc::CopyOnWriteBuffer* p, bool* x, int* pt, int* seqnum, uint32_t* tstamp, uint32_t* ssrc, std::string* payload) { rtc::ByteBufferReader buf(p->data(), p->size()); uint8_t u08 = 0; uint16_t u16 = 0; uint32_t u32 = 0; // Read X and CC fields. if (!buf.ReadUInt8(&u08)) return false; bool extension = ((u08 & 0x10) != 0); uint8_t cc = (u08 & 0x0F); if (x) *x = extension; // Read PT field. if (!buf.ReadUInt8(&u08)) return false; if (pt) *pt = (u08 & 0x7F); // Read Sequence Number field. if (!buf.ReadUInt16(&u16)) return false; if (seqnum) *seqnum = u16; // Read Timestamp field. if (!buf.ReadUInt32(&u32)) return false; if (tstamp) *tstamp = u32; // Read SSRC field. if (!buf.ReadUInt32(&u32)) return false; if (ssrc) *ssrc = u32; // Skip CSRCs. for (uint8_t i = 0; i < cc; ++i) { if (!buf.ReadUInt32(&u32)) return false; } // Skip extension header. if (extension) { // Read Profile-specific extension header ID if (!buf.ReadUInt16(&u16)) return false; // Read Extension header length if (!buf.ReadUInt16(&u16)) return false; uint16_t ext_header_len = u16; // Read Extension header for (uint16_t i = 0; i < ext_header_len; ++i) { if (!buf.ReadUInt32(&u32)) return false; } } if (payload) { return buf.ReadString(payload, buf.Length()); } return true; } // Parse all RTCP packet, from start_index to stop_index, and count how many // FIR (PT=206 and FMT=4 according to RFC 5104). If successful, set the count // and return true. bool CountRtcpFir(int start_index, int stop_index, int* fir_count) { int count = 0; for (int i = start_index; i < stop_index; ++i) { std::unique_ptr p(GetRtcpPacket(i)); rtc::ByteBufferReader buf(p->data(), p->size()); size_t total_len = 0; // The packet may be a compound RTCP packet. while (total_len < p->size()) { // Read FMT, type and length. uint8_t fmt = 0; uint8_t type = 0; uint16_t length = 0; if (!buf.ReadUInt8(&fmt)) return false; fmt &= 0x1F; if (!buf.ReadUInt8(&type)) return false; if (!buf.ReadUInt16(&length)) return false; buf.Consume(length * 4); // Skip RTCP data. total_len += (length + 1) * 4; if ((192 == type) || ((206 == type) && (4 == fmt))) { ++count; } } } if (fir_count) { *fir_count = count; } return true; } void OnVideoChannelError(uint32_t ssrc, cricket::VideoMediaChannel::Error error) { media_error_ = error; } // Test that SetSend works. void SetSend() { EXPECT_FALSE(channel_->sending()); EXPECT_TRUE( channel_->SetVideoSend(kSsrc, true, nullptr, video_capturer_.get())); EXPECT_TRUE(SetOneCodec(DefaultCodec())); EXPECT_FALSE(channel_->sending()); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->sending()); EXPECT_TRUE(SendFrame()); EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout); EXPECT_TRUE(SetSend(false)); EXPECT_FALSE(channel_->sending()); } // Test that SetSend fails without codecs being set. void SetSendWithoutCodecs() { EXPECT_FALSE(channel_->sending()); EXPECT_FALSE(SetSend(true)); EXPECT_FALSE(channel_->sending()); } // Test that we properly set the send and recv buffer sizes by the time // SetSend is called. void SetSendSetsTransportBufferSizes() { EXPECT_TRUE(SetOneCodec(DefaultCodec())); EXPECT_TRUE(SetSend(true)); EXPECT_EQ(64 * 1024, network_interface_.sendbuf_size()); EXPECT_EQ(64 * 1024, network_interface_.recvbuf_size()); } // Tests that we can send frames and the right payload type is used. void Send(const cricket::VideoCodec& codec) { EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(SendFrame()); EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout); std::unique_ptr p(GetRtpPacket(0)); EXPECT_EQ(codec.id, GetPayloadType(p.get())); } // Tests that we can send and receive frames. void SendAndReceive(const cricket::VideoCodec& codec) { EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); EXPECT_EQ(0, renderer_.num_rendered_frames()); EXPECT_TRUE(SendFrame()); EXPECT_FRAME_WAIT(1, codec.width, codec.height, kTimeout); std::unique_ptr p(GetRtpPacket(0)); EXPECT_EQ(codec.id, GetPayloadType(p.get())); } void SendReceiveManyAndGetStats(const cricket::VideoCodec& codec, int duration_sec, int fps) { EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); EXPECT_EQ(0, renderer_.num_rendered_frames()); for (int i = 0; i < duration_sec; ++i) { for (int frame = 1; frame <= fps; ++frame) { EXPECT_TRUE(WaitAndSendFrame(1000 / fps)); EXPECT_FRAME_WAIT(frame + i * fps, codec.width, codec.height, kTimeout); } } std::unique_ptr p(GetRtpPacket(0)); EXPECT_EQ(codec.id, GetPayloadType(p.get())); } // Test that stats work properly for a 1-1 call. void GetStats() { const int kDurationSec = 3; const int kFps = 10; SendReceiveManyAndGetStats(DefaultCodec(), kDurationSec, kFps); cricket::VideoMediaInfo info; EXPECT_TRUE(channel_->GetStats(&info)); ASSERT_EQ(1U, info.senders.size()); // TODO(whyuan): bytes_sent and bytes_rcvd are different. Are both payload? // For webrtc, bytes_sent does not include the RTP header length. EXPECT_GT(info.senders[0].bytes_sent, 0); EXPECT_EQ(NumRtpPackets(), info.senders[0].packets_sent); EXPECT_EQ(0.0, info.senders[0].fraction_lost); EXPECT_EQ(0, info.senders[0].firs_rcvd); EXPECT_EQ(0, info.senders[0].plis_rcvd); EXPECT_EQ(0, info.senders[0].nacks_rcvd); EXPECT_EQ(DefaultCodec().width, info.senders[0].send_frame_width); EXPECT_EQ(DefaultCodec().height, info.senders[0].send_frame_height); EXPECT_GT(info.senders[0].framerate_input, 0); EXPECT_GT(info.senders[0].framerate_sent, 0); ASSERT_EQ(1U, info.receivers.size()); EXPECT_EQ(1U, info.senders[0].ssrcs().size()); EXPECT_EQ(1U, info.receivers[0].ssrcs().size()); EXPECT_EQ(info.senders[0].ssrcs()[0], info.receivers[0].ssrcs()[0]); EXPECT_EQ(NumRtpBytes(), info.receivers[0].bytes_rcvd); EXPECT_EQ(NumRtpPackets(), info.receivers[0].packets_rcvd); EXPECT_EQ(0.0, info.receivers[0].fraction_lost); EXPECT_EQ(0, info.receivers[0].packets_lost); // TODO(asapersson): Not set for webrtc. Handle missing stats. // EXPECT_EQ(0, info.receivers[0].packets_concealed); EXPECT_EQ(0, info.receivers[0].firs_sent); EXPECT_EQ(0, info.receivers[0].plis_sent); EXPECT_EQ(0, info.receivers[0].nacks_sent); EXPECT_EQ(DefaultCodec().width, info.receivers[0].frame_width); EXPECT_EQ(DefaultCodec().height, info.receivers[0].frame_height); EXPECT_GT(info.receivers[0].framerate_rcvd, 0); EXPECT_GT(info.receivers[0].framerate_decoded, 0); EXPECT_GT(info.receivers[0].framerate_output, 0); } cricket::VideoSenderInfo GetSenderStats(size_t i) { cricket::VideoMediaInfo info; EXPECT_TRUE(channel_->GetStats(&info)); return info.senders[i]; } cricket::VideoReceiverInfo GetReceiverStats(size_t i) { cricket::VideoMediaInfo info; EXPECT_TRUE(channel_->GetStats(&info)); return info.receivers[i]; } // Test that stats work properly for a conf call with multiple recv streams. void GetStatsMultipleRecvStreams() { cricket::FakeVideoRenderer renderer1, renderer2; EXPECT_TRUE(SetOneCodec(DefaultCodec())); cricket::VideoSendParameters parameters; parameters.codecs.push_back(DefaultCodec()); parameters.conference_mode = true; EXPECT_TRUE(channel_->SetSendParameters(parameters)); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(1))); EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(2))); EXPECT_TRUE(channel_->SetSink(1, &renderer1)); EXPECT_TRUE(channel_->SetSink(2, &renderer2)); EXPECT_EQ(0, renderer1.num_rendered_frames()); EXPECT_EQ(0, renderer2.num_rendered_frames()); std::vector ssrcs; ssrcs.push_back(1); ssrcs.push_back(2); network_interface_.SetConferenceMode(true, ssrcs); EXPECT_TRUE(SendFrame()); EXPECT_FRAME_ON_RENDERER_WAIT( renderer1, 1, DefaultCodec().width, DefaultCodec().height, kTimeout); EXPECT_FRAME_ON_RENDERER_WAIT( renderer2, 1, DefaultCodec().width, DefaultCodec().height, kTimeout); EXPECT_TRUE(channel_->SetSend(false)); cricket::VideoMediaInfo info; EXPECT_TRUE(channel_->GetStats(&info)); ASSERT_EQ(1U, info.senders.size()); // TODO(whyuan): bytes_sent and bytes_rcvd are different. Are both payload? // For webrtc, bytes_sent does not include the RTP header length. EXPECT_GT(GetSenderStats(0).bytes_sent, 0); EXPECT_EQ_WAIT(NumRtpPackets(), GetSenderStats(0).packets_sent, kTimeout); EXPECT_EQ(DefaultCodec().width, GetSenderStats(0).send_frame_width); EXPECT_EQ(DefaultCodec().height, GetSenderStats(0).send_frame_height); ASSERT_EQ(2U, info.receivers.size()); for (size_t i = 0; i < info.receivers.size(); ++i) { EXPECT_EQ(1U, GetReceiverStats(i).ssrcs().size()); EXPECT_EQ(i + 1, GetReceiverStats(i).ssrcs()[0]); EXPECT_EQ_WAIT(NumRtpBytes(), GetReceiverStats(i).bytes_rcvd, kTimeout); EXPECT_EQ_WAIT(NumRtpPackets(), GetReceiverStats(i).packets_rcvd, kTimeout); EXPECT_EQ(DefaultCodec().width, GetReceiverStats(i).frame_width); EXPECT_EQ(DefaultCodec().height, GetReceiverStats(i).frame_height); } } // Test that stats work properly for a conf call with multiple send streams. void GetStatsMultipleSendStreams() { // Normal setup; note that we set the SSRC explicitly to ensure that // it will come first in the senders map. EXPECT_TRUE(SetOneCodec(DefaultCodec())); cricket::VideoSendParameters parameters; parameters.codecs.push_back(DefaultCodec()); parameters.conference_mode = true; EXPECT_TRUE(channel_->SetSendParameters(parameters)); EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(kSsrc))); EXPECT_TRUE(channel_->SetSink(kSsrc, &renderer_)); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(SendFrame()); EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout); EXPECT_FRAME_WAIT(1, DefaultCodec().width, DefaultCodec().height, kTimeout); // Add an additional capturer, and hook up a renderer to receive it. cricket::FakeVideoRenderer renderer2; std::unique_ptr capturer( CreateFakeVideoCapturer()); const int kTestWidth = 160; const int kTestHeight = 120; cricket::VideoFormat format(kTestWidth, kTestHeight, cricket::VideoFormat::FpsToInterval(5), cricket::FOURCC_I420); EXPECT_EQ(cricket::CS_RUNNING, capturer->Start(format)); EXPECT_TRUE(channel_->AddSendStream( cricket::StreamParams::CreateLegacy(5678))); EXPECT_TRUE(channel_->SetVideoSend(5678, true, nullptr, capturer.get())); EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(5678))); EXPECT_TRUE(channel_->SetSink(5678, &renderer2)); EXPECT_TRUE(capturer->CaptureCustomFrame( kTestWidth, kTestHeight, cricket::FOURCC_I420)); EXPECT_FRAME_ON_RENDERER_WAIT( renderer2, 1, kTestWidth, kTestHeight, kTimeout); // Get stats, and make sure they are correct for two senders. We wait until // the number of expected packets have been sent to avoid races where we // check stats before it has been updated. cricket::VideoMediaInfo info; for (uint32_t i = 0; i < kTimeout; ++i) { rtc::Thread::Current()->ProcessMessages(1); EXPECT_TRUE(channel_->GetStats(&info)); ASSERT_EQ(2U, info.senders.size()); if (info.senders[0].packets_sent + info.senders[1].packets_sent == NumRtpPackets()) { // Stats have been updated for both sent frames, expectations can be // checked now. break; } } EXPECT_EQ(NumRtpPackets(), info.senders[0].packets_sent + info.senders[1].packets_sent) << "Timed out while waiting for packet counts for all sent packets."; EXPECT_EQ(1U, info.senders[0].ssrcs().size()); EXPECT_EQ(1234U, info.senders[0].ssrcs()[0]); EXPECT_EQ(DefaultCodec().width, info.senders[0].send_frame_width); EXPECT_EQ(DefaultCodec().height, info.senders[0].send_frame_height); EXPECT_EQ(1U, info.senders[1].ssrcs().size()); EXPECT_EQ(5678U, info.senders[1].ssrcs()[0]); EXPECT_EQ(kTestWidth, info.senders[1].send_frame_width); EXPECT_EQ(kTestHeight, info.senders[1].send_frame_height); // The capturer must be unregistered here as it runs out of it's scope next. channel_->SetVideoSend(5678, true, nullptr, nullptr); } // Test that we can set the bandwidth. void SetSendBandwidth() { cricket::VideoSendParameters parameters; parameters.codecs.push_back(DefaultCodec()); parameters.max_bandwidth_bps = -1; // <= 0 means unlimited. EXPECT_TRUE(channel_->SetSendParameters(parameters)); parameters.max_bandwidth_bps = 128 * 1024; EXPECT_TRUE(channel_->SetSendParameters(parameters)); } // Test that we can set the SSRC for the default send source. void SetSendSsrc() { EXPECT_TRUE(SetDefaultCodec()); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(SendFrame()); EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout); uint32_t ssrc = 0; std::unique_ptr p(GetRtpPacket(0)); ParseRtpPacket(p.get(), NULL, NULL, NULL, NULL, &ssrc, NULL); EXPECT_EQ(kSsrc, ssrc); // Packets are being paced out, so these can mismatch between the first and // second call to NumRtpPackets until pending packets are paced out. EXPECT_EQ_WAIT(NumRtpPackets(), NumRtpPackets(ssrc), kTimeout); EXPECT_EQ_WAIT(NumRtpBytes(), NumRtpBytes(ssrc), kTimeout); EXPECT_EQ(1, NumSentSsrcs()); EXPECT_EQ(0, NumRtpPackets(kSsrc - 1)); EXPECT_EQ(0, NumRtpBytes(kSsrc - 1)); } // Test that we can set the SSRC even after codecs are set. void SetSendSsrcAfterSetCodecs() { // Remove stream added in Setup. EXPECT_TRUE(channel_->RemoveSendStream(kSsrc)); EXPECT_TRUE(SetDefaultCodec()); EXPECT_TRUE(channel_->AddSendStream( cricket::StreamParams::CreateLegacy(999))); EXPECT_TRUE( channel_->SetVideoSend(999u, true, nullptr, video_capturer_.get())); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(WaitAndSendFrame(0)); EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout); uint32_t ssrc = 0; std::unique_ptr p(GetRtpPacket(0)); ParseRtpPacket(p.get(), NULL, NULL, NULL, NULL, &ssrc, NULL); EXPECT_EQ(999u, ssrc); // Packets are being paced out, so these can mismatch between the first and // second call to NumRtpPackets until pending packets are paced out. EXPECT_EQ_WAIT(NumRtpPackets(), NumRtpPackets(ssrc), kTimeout); EXPECT_EQ_WAIT(NumRtpBytes(), NumRtpBytes(ssrc), kTimeout); EXPECT_EQ(1, NumSentSsrcs()); EXPECT_EQ(0, NumRtpPackets(kSsrc)); EXPECT_EQ(0, NumRtpBytes(kSsrc)); } // Test that we can set the default video renderer before and after // media is received. void SetSink() { uint8_t data1[] = { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; rtc::CopyOnWriteBuffer packet1(data1, sizeof(data1)); rtc::SetBE32(packet1.data() + 8, kSsrc); channel_->SetSink(kDefaultReceiveSsrc, NULL); EXPECT_TRUE(SetDefaultCodec()); EXPECT_TRUE(SetSend(true)); EXPECT_EQ(0, renderer_.num_rendered_frames()); channel_->OnPacketReceived(&packet1, rtc::PacketTime()); EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); EXPECT_TRUE(SendFrame()); EXPECT_FRAME_WAIT(1, DefaultCodec().width, DefaultCodec().height, kTimeout); } // Tests empty StreamParams is rejected. void RejectEmptyStreamParams() { // Remove the send stream that was added during Setup. EXPECT_TRUE(channel_->RemoveSendStream(kSsrc)); cricket::StreamParams empty; EXPECT_FALSE(channel_->AddSendStream(empty)); EXPECT_TRUE(channel_->AddSendStream( cricket::StreamParams::CreateLegacy(789u))); } // Tests setting up and configuring a send stream. void AddRemoveSendStreams() { EXPECT_TRUE(SetOneCodec(DefaultCodec())); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); EXPECT_TRUE(SendFrame()); EXPECT_FRAME_WAIT(1, DefaultCodec().width, DefaultCodec().height, kTimeout); EXPECT_GT(NumRtpPackets(), 0); uint32_t ssrc = 0; size_t last_packet = NumRtpPackets() - 1; std::unique_ptr p(GetRtpPacket(static_cast(last_packet))); ParseRtpPacket(p.get(), NULL, NULL, NULL, NULL, &ssrc, NULL); EXPECT_EQ(kSsrc, ssrc); // Remove the send stream that was added during Setup. EXPECT_TRUE(channel_->RemoveSendStream(kSsrc)); int rtp_packets = NumRtpPackets(); EXPECT_TRUE(channel_->AddSendStream( cricket::StreamParams::CreateLegacy(789u))); EXPECT_TRUE( channel_->SetVideoSend(789u, true, nullptr, video_capturer_.get())); EXPECT_EQ(rtp_packets, NumRtpPackets()); // Wait 30ms to guarantee the engine does not drop the frame. EXPECT_TRUE(WaitAndSendFrame(30)); EXPECT_TRUE_WAIT(NumRtpPackets() > rtp_packets, kTimeout); last_packet = NumRtpPackets() - 1; p.reset(GetRtpPacket(static_cast(last_packet))); ParseRtpPacket(p.get(), NULL, NULL, NULL, NULL, &ssrc, NULL); EXPECT_EQ(789u, ssrc); } // Tests the behavior of incoming streams in a conference scenario. void SimulateConference() { cricket::FakeVideoRenderer renderer1, renderer2; EXPECT_TRUE(SetDefaultCodec()); cricket::VideoSendParameters parameters; parameters.codecs.push_back(DefaultCodec()); parameters.conference_mode = true; EXPECT_TRUE(channel_->SetSendParameters(parameters)); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(1))); EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(2))); EXPECT_TRUE(channel_->SetSink(1, &renderer1)); EXPECT_TRUE(channel_->SetSink(2, &renderer2)); EXPECT_EQ(0, renderer1.num_rendered_frames()); EXPECT_EQ(0, renderer2.num_rendered_frames()); std::vector ssrcs; ssrcs.push_back(1); ssrcs.push_back(2); network_interface_.SetConferenceMode(true, ssrcs); EXPECT_TRUE(SendFrame()); EXPECT_FRAME_ON_RENDERER_WAIT( renderer1, 1, DefaultCodec().width, DefaultCodec().height, kTimeout); EXPECT_FRAME_ON_RENDERER_WAIT( renderer2, 1, DefaultCodec().width, DefaultCodec().height, kTimeout); std::unique_ptr p(GetRtpPacket(0)); EXPECT_EQ(DefaultCodec().id, GetPayloadType(p.get())); EXPECT_EQ(DefaultCodec().width, renderer1.width()); EXPECT_EQ(DefaultCodec().height, renderer1.height()); EXPECT_EQ(DefaultCodec().width, renderer2.width()); EXPECT_EQ(DefaultCodec().height, renderer2.height()); EXPECT_TRUE(channel_->RemoveRecvStream(2)); EXPECT_TRUE(channel_->RemoveRecvStream(1)); } // Tests that we can add and remove capturers and frames are sent out properly void AddRemoveCapturer() { cricket::VideoCodec codec = DefaultCodec(); codec.width = 320; codec.height = 240; const int time_between_send = TimeBetweenSend(codec); EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); EXPECT_EQ(0, renderer_.num_rendered_frames()); EXPECT_TRUE(SendFrame()); EXPECT_FRAME_WAIT(1, codec.width, codec.height, kTimeout); std::unique_ptr capturer( CreateFakeVideoCapturer()); // TODO(nisse): This testcase fails if we don't configure // screencast. It's unclear why, I see nothing obvious in this // test which is related to screencast logic. cricket::VideoOptions video_options; video_options.is_screencast = rtc::Optional(true); channel_->SetVideoSend(kSsrc, true, &video_options, nullptr); cricket::VideoFormat format(480, 360, cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420); EXPECT_EQ(cricket::CS_RUNNING, capturer->Start(format)); // All capturers start generating frames with the same timestamp. ViE does // not allow the same timestamp to be used. Capture one frame before // associating the capturer with the channel. EXPECT_TRUE(capturer->CaptureCustomFrame(format.width, format.height, cricket::FOURCC_I420)); int captured_frames = 1; for (int iterations = 0; iterations < 2; ++iterations) { EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, nullptr, capturer.get())); rtc::Thread::Current()->ProcessMessages(time_between_send); EXPECT_TRUE(capturer->CaptureCustomFrame(format.width, format.height, cricket::FOURCC_I420)); ++captured_frames; // Wait until frame of right size is captured. EXPECT_TRUE_WAIT(renderer_.num_rendered_frames() >= captured_frames && format.width == renderer_.width() && format.height == renderer_.height() && !renderer_.black_frame(), kTimeout); EXPECT_GE(renderer_.num_rendered_frames(), captured_frames); EXPECT_EQ(format.width, renderer_.width()); EXPECT_EQ(format.height, renderer_.height()); captured_frames = renderer_.num_rendered_frames() + 1; EXPECT_FALSE(renderer_.black_frame()); EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, nullptr, nullptr)); // Make sure a black frame is generated within the specified timeout. // The black frame should be the resolution of the previous frame to // prevent expensive encoder reconfigurations. EXPECT_TRUE_WAIT(renderer_.num_rendered_frames() >= captured_frames && format.width == renderer_.width() && format.height == renderer_.height() && renderer_.black_frame(), kTimeout); EXPECT_GE(renderer_.num_rendered_frames(), captured_frames); EXPECT_EQ(format.width, renderer_.width()); EXPECT_EQ(format.height, renderer_.height()); EXPECT_TRUE(renderer_.black_frame()); // The black frame has the same timestamp as the next frame since it's // timestamp is set to the last frame's timestamp + interval. WebRTC will // not render a frame with the same timestamp so capture another frame // with the frame capturer to increment the next frame's timestamp. EXPECT_TRUE(capturer->CaptureCustomFrame(format.width, format.height, cricket::FOURCC_I420)); } } // Tests that if SetVideoSend is called with a NULL capturer after the // capturer was already removed, the application doesn't crash (and no black // frame is sent). void RemoveCapturerWithoutAdd() { EXPECT_TRUE(SetOneCodec(DefaultCodec())); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); EXPECT_EQ(0, renderer_.num_rendered_frames()); EXPECT_TRUE(SendFrame()); EXPECT_FRAME_WAIT(1, 640, 400, kTimeout); // Wait for one frame so they don't get dropped because we send frames too // tightly. rtc::Thread::Current()->ProcessMessages(30); // Remove the capturer. EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, nullptr, nullptr)); // Wait for one black frame for removing the capturer. EXPECT_FRAME_WAIT(2, 640, 400, kTimeout); // No capturer was added, so this SetVideoSend shouldn't do anything. EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, nullptr, nullptr)); rtc::Thread::Current()->ProcessMessages(300); // Verify no more frames were sent. EXPECT_EQ(2, renderer_.num_rendered_frames()); } // Tests that we can add and remove capturer as unique sources. void AddRemoveCapturerMultipleSources() { // WebRTC implementation will drop frames if pushed to quickly. Wait the // interval time to avoid that. // WebRTC implementation will drop frames if pushed to quickly. Wait the // interval time to avoid that. // Set up the stream associated with the engine. EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(kSsrc))); EXPECT_TRUE(channel_->SetSink(kSsrc, &renderer_)); cricket::VideoFormat capture_format; // default format capture_format.interval = cricket::VideoFormat::FpsToInterval(30); // Set up additional stream 1. cricket::FakeVideoRenderer renderer1; EXPECT_FALSE(channel_->SetSink(1, &renderer1)); EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(1))); EXPECT_TRUE(channel_->SetSink(1, &renderer1)); EXPECT_TRUE(channel_->AddSendStream( cricket::StreamParams::CreateLegacy(1))); std::unique_ptr capturer1( CreateFakeVideoCapturer()); EXPECT_EQ(cricket::CS_RUNNING, capturer1->Start(capture_format)); // Set up additional stream 2. cricket::FakeVideoRenderer renderer2; EXPECT_FALSE(channel_->SetSink(2, &renderer2)); EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(2))); EXPECT_TRUE(channel_->SetSink(2, &renderer2)); EXPECT_TRUE(channel_->AddSendStream( cricket::StreamParams::CreateLegacy(2))); std::unique_ptr capturer2( CreateFakeVideoCapturer()); EXPECT_EQ(cricket::CS_RUNNING, capturer2->Start(capture_format)); // State for all the streams. EXPECT_TRUE(SetOneCodec(DefaultCodec())); // A limitation in the lmi implementation requires that SetVideoSend() is // called after SetOneCodec(). // TODO(hellner): this seems like an unnecessary constraint, fix it. EXPECT_TRUE(channel_->SetVideoSend(1, true, nullptr, capturer1.get())); EXPECT_TRUE(channel_->SetVideoSend(2, true, nullptr, capturer2.get())); EXPECT_TRUE(SetSend(true)); // Test capturer associated with engine. const int kTestWidth = 160; const int kTestHeight = 120; EXPECT_TRUE(capturer1->CaptureCustomFrame( kTestWidth, kTestHeight, cricket::FOURCC_I420)); EXPECT_FRAME_ON_RENDERER_WAIT( renderer1, 1, kTestWidth, kTestHeight, kTimeout); // Capture a frame with additional capturer2, frames should be received EXPECT_TRUE(capturer2->CaptureCustomFrame( kTestWidth, kTestHeight, cricket::FOURCC_I420)); EXPECT_FRAME_ON_RENDERER_WAIT( renderer2, 1, kTestWidth, kTestHeight, kTimeout); // Successfully remove the capturer. EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, nullptr, nullptr)); // The capturers must be unregistered here as it runs out of it's scope // next. EXPECT_TRUE(channel_->SetVideoSend(1, true, nullptr, nullptr)); EXPECT_TRUE(channel_->SetVideoSend(2, true, nullptr, nullptr)); } void HighAspectHighHeightCapturer() { const int kWidth = 80; const int kHeight = 10000; const int kScaledWidth = 20; const int kScaledHeight = 2500; cricket::VideoCodec codec(DefaultCodec()); EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(SetSend(true)); cricket::FakeVideoRenderer renderer; EXPECT_TRUE(channel_->AddRecvStream( cricket::StreamParams::CreateLegacy(kSsrc))); EXPECT_TRUE(channel_->SetSink(kSsrc, &renderer)); EXPECT_EQ(0, renderer.num_rendered_frames()); EXPECT_TRUE(SendFrame()); EXPECT_GT_FRAME_ON_RENDERER_WAIT( renderer, 1, codec.width, codec.height, kTimeout); // Registering an external capturer is currently the same as screen casting // (update the test when this changes). std::unique_ptr capturer( CreateFakeVideoCapturer()); const std::vector* formats = capturer->GetSupportedFormats(); cricket::VideoFormat capture_format = (*formats)[0]; EXPECT_EQ(cricket::CS_RUNNING, capturer->Start(capture_format)); // Capture frame to not get same frame timestamps as previous capturer. capturer->CaptureFrame(); EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, nullptr, capturer.get())); EXPECT_TRUE(rtc::Thread::Current()->ProcessMessages(30)); EXPECT_TRUE(capturer->CaptureCustomFrame(kWidth, kHeight, cricket::FOURCC_ARGB)); EXPECT_GT_FRAME_ON_RENDERER_WAIT( renderer, 2, kScaledWidth, kScaledHeight, kTimeout); EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, nullptr, nullptr)); } // Tests that we can adapt video resolution with 16:10 aspect ratio properly. void AdaptResolution16x10() { EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); cricket::VideoCodec codec(DefaultCodec()); codec.width = 640; codec.height = 400; SendAndReceive(codec); codec.width /= 2; codec.height /= 2; // Adapt the resolution. EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(WaitAndSendFrame(30)); EXPECT_FRAME_WAIT(2, codec.width, codec.height, kTimeout); } // Tests that we can adapt video resolution with 4:3 aspect ratio properly. void AdaptResolution4x3() { EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); cricket::VideoCodec codec(DefaultCodec()); codec.width = 640; codec.height = 400; SendAndReceive(codec); codec.width /= 2; codec.height /= 2; // Adapt the resolution. EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(WaitAndSendFrame(30)); EXPECT_FRAME_WAIT(2, codec.width, codec.height, kTimeout); } // Tests that we can drop all frames properly. void AdaptDropAllFrames() { // Set the channel codec's resolution to 0, which will require the adapter // to drop all frames. cricket::VideoCodec codec(DefaultCodec()); codec.width = codec.height = codec.framerate = 0; EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); EXPECT_EQ(0, renderer_.num_rendered_frames()); EXPECT_TRUE(SendFrame()); EXPECT_TRUE(SendFrame()); rtc::Thread::Current()->ProcessMessages(500); EXPECT_EQ(0, renderer_.num_rendered_frames()); } // Tests that we can reduce the frame rate on demand properly. // TODO(fbarchard): This test is flakey on pulse. Fix and re-enable void AdaptFramerate() { cricket::VideoCodec codec(DefaultCodec()); int frame_count = 0; // The capturer runs at 30 fps. The channel requires 30 fps. EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(SetSend(true)); EXPECT_EQ(frame_count, renderer_.num_rendered_frames()); EXPECT_TRUE(WaitAndSendFrame(0)); // Should be rendered. EXPECT_TRUE(WaitAndSendFrame(30)); // Should be rendered. frame_count += 2; EXPECT_FRAME_WAIT(frame_count, codec.width, codec.height, kTimeout); std::unique_ptr p(GetRtpPacket(0)); EXPECT_EQ(codec.id, GetPayloadType(p.get())); // The channel requires 15 fps. codec.framerate = 15; EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(WaitAndSendFrame(0)); // Should be rendered. EXPECT_TRUE(WaitAndSendFrame(30)); // Should be dropped. EXPECT_TRUE(WaitAndSendFrame(30)); // Should be rendered. frame_count += 2; EXPECT_EQ_WAIT(frame_count, renderer_.num_rendered_frames(), kTimeout); // The channel requires 10 fps. codec.framerate = 10; EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(WaitAndSendFrame(0)); // Should be rendered. EXPECT_TRUE(WaitAndSendFrame(30)); // Should be dropped. EXPECT_TRUE(WaitAndSendFrame(30)); // Should be dropped. EXPECT_TRUE(WaitAndSendFrame(30)); // Should be rendered. frame_count += 2; EXPECT_EQ_WAIT(frame_count, renderer_.num_rendered_frames(), kTimeout); // The channel requires 8 fps. The adapter adapts to 10 fps, which is the // closest factor of 30. codec.framerate = 8; EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(WaitAndSendFrame(0)); // Should be rendered. EXPECT_TRUE(WaitAndSendFrame(30)); // Should be dropped. EXPECT_TRUE(WaitAndSendFrame(30)); // Should be dropped. EXPECT_TRUE(WaitAndSendFrame(30)); // Should be rendered. frame_count += 2; EXPECT_EQ_WAIT(frame_count, renderer_.num_rendered_frames(), kTimeout); } // Tests that adapted frames won't be upscaled to a higher resolution. void SendsLowerResolutionOnSmallerFrames() { cricket::VideoCodec codec = DefaultCodec(); codec.width = 320; codec.height = 240; EXPECT_TRUE(SetOneCodec(codec)); EXPECT_TRUE(SetSend(true)); EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_)); EXPECT_EQ(0, renderer_.num_rendered_frames()); EXPECT_TRUE(SendFrame()); EXPECT_FRAME_WAIT(1, codec.width, codec.height, kTimeout); // Check that we send smaller frames at the new resolution. EXPECT_TRUE(rtc::Thread::Current()->ProcessMessages(33)); EXPECT_TRUE(video_capturer_->CaptureCustomFrame( codec.width / 2, codec.height / 2, cricket::FOURCC_I420)); EXPECT_FRAME_WAIT(2, codec.width / 2, codec.height / 2, kTimeout); } // Test that multiple send streams can be created and deleted properly. void MultipleSendStreams() { // Remove stream added in Setup. I.e. remove stream corresponding to default // channel. EXPECT_TRUE(channel_->RemoveSendStream(kSsrc)); const unsigned int kSsrcsSize = sizeof(kSsrcs4)/sizeof(kSsrcs4[0]); for (unsigned int i = 0; i < kSsrcsSize; ++i) { EXPECT_TRUE(channel_->AddSendStream( cricket::StreamParams::CreateLegacy(kSsrcs4[i]))); } // Delete one of the non default channel streams, let the destructor delete // the remaining ones. EXPECT_TRUE(channel_->RemoveSendStream(kSsrcs4[kSsrcsSize - 1])); // Stream should already be deleted. EXPECT_FALSE(channel_->RemoveSendStream(kSsrcs4[kSsrcsSize - 1])); } // Two streams one channel tests. // Tests that we can send and receive frames. void TwoStreamsSendAndReceive(const cricket::VideoCodec& codec) { SetUpSecondStream(); // Test sending and receiving on first stream. SendAndReceive(codec); // Test sending and receiving on second stream. EXPECT_EQ_WAIT(1, renderer2_.num_rendered_frames(), kTimeout); EXPECT_GT(NumRtpPackets(), 0); EXPECT_EQ(1, renderer2_.num_rendered_frames()); } const std::unique_ptr call_; E engine_; std::unique_ptr video_capturer_; std::unique_ptr video_capturer_2_; std::unique_ptr channel_; cricket::FakeNetworkInterface network_interface_; cricket::FakeVideoRenderer renderer_; cricket::VideoMediaChannel::Error media_error_; // Used by test cases where 2 streams are run on the same channel. cricket::FakeVideoRenderer renderer2_; }; #endif // WEBRTC_MEDIA_BASE_VIDEOENGINE_UNITTEST_H_ NOLINT