| /* |
| * 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 <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "webrtc/call/call.h" |
| #include "webrtc/logging/rtc_event_log/rtc_event_log.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" |
| #include "webrtc/rtc_base/bytebuffer.h" |
| #include "webrtc/rtc_base/gunit.h" |
| #include "webrtc/rtc_base/timeutils.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}; |
| static const int kVideoWidth = 640; |
| static const int kVideoHeight = 360; |
| static const int kFramerate = 30; |
| |
| inline bool IsEqualCodec(const cricket::VideoCodec& a, |
| const cricket::VideoCodec& b) { |
| return a.id == b.id && a.name == b.name; |
| } |
| |
| template<class E, class C> |
| class VideoMediaChannelTest : public testing::Test, |
| public sigslot::has_slots<> { |
| protected: |
| VideoMediaChannelTest<E, C>() |
| : call_(webrtc::Call::Create(webrtc::Call::Config(&event_log_))) {} |
| |
| virtual cricket::VideoCodec DefaultCodec() = 0; |
| |
| virtual cricket::StreamParams DefaultSendStreamParams() { |
| return cricket::StreamParams::CreateLegacy(kSsrc); |
| } |
| |
| virtual void SetUp() { |
| engine_.Init(); |
| cricket::MediaConfig media_config; |
| // Disabling cpu overuse detection actually disables quality scaling too; it |
| // implies DegradationPreference kMaintainResolution. Automatic scaling |
| // needs to be disabled, otherwise, tests which check the size of received |
| // frames become flaky. |
| media_config.video.enable_cpu_overuse_detection = false; |
| channel_.reset(engine_.CreateChannel(call_.get(), media_config, |
| cricket::VideoOptions())); |
| channel_->OnReadyToSend(true); |
| 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(kFramerate), |
| 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(kFramerate), |
| 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) { |
| return SetOneCodec(cricket::VideoCodec(pt, name)); |
| } |
| bool SetOneCodec(const cricket::VideoCodec& codec) { |
| cricket::VideoFormat capture_format( |
| kVideoWidth, kVideoHeight, |
| cricket::VideoFormat::FpsToInterval(kFramerate), 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<int>(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<char>(), 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<const rtc::CopyOnWriteBuffer> p(GetRtcpPacket(i)); |
| rtc::ByteBufferReader buf(p->data<char>(), 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<const rtc::CopyOnWriteBuffer> 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, kVideoWidth, kVideoHeight, kTimeout); |
| std::unique_ptr<const rtc::CopyOnWriteBuffer> 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, kVideoWidth, kVideoHeight, kTimeout); |
| } |
| } |
| std::unique_ptr<const rtc::CopyOnWriteBuffer> 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); |
| ASSERT_TRUE(info.senders[0].codec_payload_type); |
| EXPECT_EQ(DefaultCodec().id, *info.senders[0].codec_payload_type); |
| 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(kVideoWidth, info.senders[0].send_frame_width); |
| EXPECT_EQ(kVideoHeight, info.senders[0].send_frame_height); |
| EXPECT_GT(info.senders[0].framerate_input, 0); |
| EXPECT_GT(info.senders[0].framerate_sent, 0); |
| |
| EXPECT_EQ(1U, info.send_codecs.count(DefaultCodec().id)); |
| EXPECT_EQ(DefaultCodec().ToCodecParameters(), |
| info.send_codecs[DefaultCodec().id]); |
| |
| 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]); |
| ASSERT_TRUE(info.receivers[0].codec_payload_type); |
| EXPECT_EQ(DefaultCodec().id, *info.receivers[0].codec_payload_type); |
| 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(kVideoWidth, info.receivers[0].frame_width); |
| EXPECT_EQ(kVideoHeight, 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); |
| |
| EXPECT_EQ(1U, info.receive_codecs.count(DefaultCodec().id)); |
| EXPECT_EQ(DefaultCodec().ToCodecParameters(), |
| info.receive_codecs[DefaultCodec().id]); |
| } |
| |
| 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<uint32_t> ssrcs; |
| ssrcs.push_back(1); |
| ssrcs.push_back(2); |
| network_interface_.SetConferenceMode(true, ssrcs); |
| EXPECT_TRUE(SendFrame()); |
| EXPECT_FRAME_ON_RENDERER_WAIT(renderer1, 1, kVideoWidth, kVideoHeight, |
| kTimeout); |
| EXPECT_FRAME_ON_RENDERER_WAIT(renderer2, 1, kVideoWidth, kVideoHeight, |
| 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(kVideoWidth, GetSenderStats(0).send_frame_width); |
| EXPECT_EQ(kVideoHeight, 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_WAIT(kVideoWidth, GetReceiverStats(i).frame_width, kTimeout); |
| EXPECT_EQ_WAIT(kVideoHeight, GetReceiverStats(i).frame_height, kTimeout); |
| } |
| } |
| // 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, kVideoWidth, kVideoHeight, kTimeout); |
| |
| // Add an additional capturer, and hook up a renderer to receive it. |
| cricket::FakeVideoRenderer renderer2; |
| std::unique_ptr<cricket::FakeVideoCapturer> 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(kVideoWidth, info.senders[0].send_frame_width); |
| EXPECT_EQ(kVideoHeight, 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<const rtc::CopyOnWriteBuffer> 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<const rtc::CopyOnWriteBuffer> 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, kVideoWidth, kVideoHeight, 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, kVideoWidth, kVideoHeight, kTimeout); |
| EXPECT_GT(NumRtpPackets(), 0); |
| uint32_t ssrc = 0; |
| size_t last_packet = NumRtpPackets() - 1; |
| std::unique_ptr<const rtc::CopyOnWriteBuffer> |
| p(GetRtpPacket(static_cast<int>(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<int>(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<uint32_t> ssrcs; |
| ssrcs.push_back(1); |
| ssrcs.push_back(2); |
| network_interface_.SetConferenceMode(true, ssrcs); |
| EXPECT_TRUE(SendFrame()); |
| EXPECT_FRAME_ON_RENDERER_WAIT(renderer1, 1, kVideoWidth, kVideoHeight, |
| kTimeout); |
| EXPECT_FRAME_ON_RENDERER_WAIT(renderer2, 1, kVideoWidth, kVideoHeight, |
| kTimeout); |
| |
| std::unique_ptr<const rtc::CopyOnWriteBuffer> p(GetRtpPacket(0)); |
| EXPECT_EQ(DefaultCodec().id, GetPayloadType(p.get())); |
| EXPECT_EQ(kVideoWidth, renderer1.width()); |
| EXPECT_EQ(kVideoHeight, renderer1.height()); |
| EXPECT_EQ(kVideoWidth, renderer2.width()); |
| EXPECT_EQ(kVideoHeight, 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(); |
| const int time_between_send_ms = |
| cricket::VideoFormat::FpsToInterval(kFramerate); |
| 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, kVideoWidth, kVideoHeight, kTimeout); |
| std::unique_ptr<cricket::FakeVideoCapturer> 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<bool>(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_ms); |
| 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, kVideoWidth, kVideoHeight, 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)); |
| |
| // 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(1, 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(kFramerate); |
| // 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<cricket::FakeVideoCapturer> 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<cricket::FakeVideoCapturer> 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)); |
| } |
| |
| // 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()); |
| } |
| |
| webrtc::RtcEventLogNullImpl event_log_; |
| const std::unique_ptr<webrtc::Call> call_; |
| E engine_; |
| std::unique_ptr<cricket::FakeVideoCapturer> video_capturer_; |
| std::unique_ptr<cricket::FakeVideoCapturer> video_capturer_2_; |
| std::unique_ptr<C> 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 |
