/*
* Copyright (c) 2004 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 <algorithm>
#include <map>
#include <memory>
#include <vector>
#include "webrtc/base/arraysize.h"
#include "webrtc/base/gunit.h"
#include "webrtc/base/stringutils.h"
#include "webrtc/media/base/testutils.h"
#include "webrtc/media/base/videoengine_unittest.h"
#include "webrtc/media/engine/fakewebrtccall.h"
#include "webrtc/media/engine/fakewebrtcvideoengine.h"
#include "webrtc/media/engine/simulcast.h"
#include "webrtc/media/engine/webrtcvideochannelfactory.h"
#include "webrtc/media/engine/webrtcvideoengine2.h"
#include "webrtc/media/engine/webrtcvoiceengine.h"
#include "webrtc/test/field_trial.h"
#include "webrtc/video_encoder.h"
using webrtc::RtpExtension;
namespace {
static const int kDefaultQpMax = 56;
static const int kDefaultFramerate = 30;
static const cricket::VideoCodec kVp8Codec720p(100, "VP8", 1280, 720, 30);
static const cricket::VideoCodec kVp8Codec360p(100, "VP8", 640, 360, 30);
static const cricket::VideoCodec kVp8Codec270p(100, "VP8", 480, 270, 30);
static const cricket::VideoCodec kVp8Codec(100, "VP8", 640, 400, 30);
static const cricket::VideoCodec kVp9Codec(101, "VP9", 640, 400, 30);
static const cricket::VideoCodec kH264Codec(102, "H264", 640, 400, 30);
static const cricket::VideoCodec kRedCodec(116, "red", 0, 0, 0);
static const cricket::VideoCodec kUlpfecCodec(117, "ulpfec", 0, 0, 0);
static const uint8_t kRedRtxPayloadType = 125;
static const uint32_t kSsrcs1[] = {1};
static const uint32_t kSsrcs3[] = {1, 2, 3};
static const uint32_t kRtxSsrcs1[] = {4};
static const uint32_t kIncomingUnsignalledSsrc = 0xC0FFEE;
static const char kUnsupportedExtensionName[] =
"urn:ietf:params:rtp-hdrext:unsupported";
void VerifyCodecHasDefaultFeedbackParams(const cricket::VideoCodec& codec) {
EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
cricket::kRtcpFbParamNack, cricket::kParamValueEmpty)));
EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
cricket::kRtcpFbParamNack, cricket::kRtcpFbNackParamPli)));
EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
cricket::kRtcpFbParamRemb, cricket::kParamValueEmpty)));
EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
cricket::kRtcpFbParamTransportCc, cricket::kParamValueEmpty)));
EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
cricket::kRtcpFbParamCcm, cricket::kRtcpFbCcmParamFir)));
}
static void CreateBlackFrame(webrtc::VideoFrame* video_frame,
int width,
int height) {
video_frame->CreateEmptyFrame(
width, height, width, (width + 1) / 2, (width + 1) / 2);
memset(video_frame->video_frame_buffer()->MutableDataY(), 16,
video_frame->allocated_size(webrtc::kYPlane));
memset(video_frame->video_frame_buffer()->MutableDataU(), 128,
video_frame->allocated_size(webrtc::kUPlane));
memset(video_frame->video_frame_buffer()->MutableDataV(), 128,
video_frame->allocated_size(webrtc::kVPlane));
}
void VerifySendStreamHasRtxTypes(const webrtc::VideoSendStream::Config& config,
const std::map<int, int>& rtx_types) {
std::map<int, int>::const_iterator it;
it = rtx_types.find(config.encoder_settings.payload_type);
EXPECT_TRUE(it != rtx_types.end() &&
it->second == config.rtp.rtx.payload_type);
if (config.rtp.fec.red_rtx_payload_type != -1) {
it = rtx_types.find(config.rtp.fec.red_payload_type);
EXPECT_TRUE(it != rtx_types.end() &&
it->second == config.rtp.fec.red_rtx_payload_type);
}
}
} // namespace
namespace cricket {
class WebRtcVideoEngine2Test : public ::testing::Test {
public:
WebRtcVideoEngine2Test() : WebRtcVideoEngine2Test("") {}
explicit WebRtcVideoEngine2Test(const char* field_trials)
: override_field_trials_(field_trials),
call_(webrtc::Call::Create(webrtc::Call::Config())),
engine_() {
std::vector<VideoCodec> engine_codecs = engine_.codecs();
RTC_DCHECK(!engine_codecs.empty());
bool codec_set = false;
for (size_t i = 0; i < engine_codecs.size(); ++i) {
if (engine_codecs[i].name == "red") {
default_red_codec_ = engine_codecs[i];
} else if (engine_codecs[i].name == "ulpfec") {
default_ulpfec_codec_ = engine_codecs[i];
} else if (engine_codecs[i].name == "rtx") {
int associated_payload_type;
if (engine_codecs[i].GetParam(kCodecParamAssociatedPayloadType,
&associated_payload_type)) {
default_apt_rtx_types_[associated_payload_type] = engine_codecs[i].id;
}
} else if (!codec_set) {
default_codec_ = engine_codecs[i];
codec_set = true;
}
}
RTC_DCHECK(codec_set);
}
protected:
VideoMediaChannel* SetUpForExternalEncoderFactory(
cricket::WebRtcVideoEncoderFactory* encoder_factory,
const std::vector<VideoCodec>& codecs);
VideoMediaChannel* SetUpForExternalDecoderFactory(
cricket::WebRtcVideoDecoderFactory* decoder_factory,
const std::vector<VideoCodec>& codecs);
void TestExtendedEncoderOveruse(bool use_external_encoder);
webrtc::test::ScopedFieldTrials override_field_trials_;
// Used in WebRtcVideoEngine2VoiceTest, but defined here so it's properly
// initialized when the constructor is called.
std::unique_ptr<webrtc::Call> call_;
WebRtcVideoEngine2 engine_;
VideoCodec default_codec_;
VideoCodec default_red_codec_;
VideoCodec default_ulpfec_codec_;
std::map<int, int> default_apt_rtx_types_;
};
TEST_F(WebRtcVideoEngine2Test, AnnouncesVp9AccordingToBuildFlags) {
bool claims_vp9_support = false;
for (const cricket::VideoCodec& codec : engine_.codecs()) {
if (codec.name == "VP9") {
claims_vp9_support = true;
break;
}
}
#if defined(RTC_DISABLE_VP9)
EXPECT_FALSE(claims_vp9_support);
#else
EXPECT_TRUE(claims_vp9_support);
#endif // defined(RTC_DISABLE_VP9)
}
TEST_F(WebRtcVideoEngine2Test, DefaultRtxCodecHasAssociatedPayloadTypeSet) {
std::vector<VideoCodec> engine_codecs = engine_.codecs();
for (size_t i = 0; i < engine_codecs.size(); ++i) {
if (engine_codecs[i].name != kRtxCodecName)
continue;
int associated_payload_type;
EXPECT_TRUE(engine_codecs[i].GetParam(kCodecParamAssociatedPayloadType,
&associated_payload_type));
EXPECT_EQ(default_codec_.id, associated_payload_type);
return;
}
FAIL() << "No RTX codec found among default codecs.";
}
TEST_F(WebRtcVideoEngine2Test, SupportsTimestampOffsetHeaderExtension) {
RtpCapabilities capabilities = engine_.GetCapabilities();
ASSERT_FALSE(capabilities.header_extensions.empty());
for (const RtpExtension& extension : capabilities.header_extensions) {
if (extension.uri == RtpExtension::kTimestampOffsetUri) {
EXPECT_EQ(RtpExtension::kTimestampOffsetDefaultId, extension.id);
return;
}
}
FAIL() << "Timestamp offset extension not in header-extension list.";
}
TEST_F(WebRtcVideoEngine2Test, SupportsAbsoluteSenderTimeHeaderExtension) {
RtpCapabilities capabilities = engine_.GetCapabilities();
ASSERT_FALSE(capabilities.header_extensions.empty());
for (const RtpExtension& extension : capabilities.header_extensions) {
if (extension.uri == RtpExtension::kAbsSendTimeUri) {
EXPECT_EQ(RtpExtension::kAbsSendTimeDefaultId, extension.id);
return;
}
}
FAIL() << "Absolute Sender Time extension not in header-extension list.";
}
class WebRtcVideoEngine2WithSendSideBweTest : public WebRtcVideoEngine2Test {
public:
WebRtcVideoEngine2WithSendSideBweTest()
: WebRtcVideoEngine2Test("WebRTC-SendSideBwe/Enabled/") {}
};
TEST_F(WebRtcVideoEngine2WithSendSideBweTest,
SupportsTransportSequenceNumberHeaderExtension) {
RtpCapabilities capabilities = engine_.GetCapabilities();
ASSERT_FALSE(capabilities.header_extensions.empty());
for (const RtpExtension& extension : capabilities.header_extensions) {
if (extension.uri == RtpExtension::kTransportSequenceNumberUri) {
EXPECT_EQ(RtpExtension::kTransportSequenceNumberDefaultId, extension.id);
return;
}
}
FAIL() << "Transport sequence number extension not in header-extension list.";
}
TEST_F(WebRtcVideoEngine2Test, SupportsVideoRotationHeaderExtension) {
RtpCapabilities capabilities = engine_.GetCapabilities();
ASSERT_FALSE(capabilities.header_extensions.empty());
for (const RtpExtension& extension : capabilities.header_extensions) {
if (extension.uri == RtpExtension::kVideoRotationUri) {
EXPECT_EQ(RtpExtension::kVideoRotationDefaultId, extension.id);
return;
}
}
FAIL() << "Video Rotation extension not in header-extension list.";
}
TEST_F(WebRtcVideoEngine2Test, CVOSetHeaderExtensionBeforeCapturer) {
// Allocate the capturer first to prevent early destruction before channel's
// dtor is called.
cricket::FakeVideoCapturer capturer;
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, parameters.codecs));
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(kSsrc)));
// Add CVO extension.
const int id = 1;
parameters.extensions.push_back(
RtpExtension(RtpExtension::kVideoRotationUri, id));
EXPECT_TRUE(channel->SetSendParameters(parameters));
// Set capturer.
EXPECT_TRUE(channel->SetVideoSend(kSsrc, true, nullptr, &capturer));
// Verify capturer has turned off applying rotation.
EXPECT_FALSE(capturer.apply_rotation());
// Verify removing header extension turns on applying rotation.
parameters.extensions.clear();
EXPECT_TRUE(channel->SetSendParameters(parameters));
EXPECT_TRUE(capturer.apply_rotation());
}
TEST_F(WebRtcVideoEngine2Test, CVOSetHeaderExtensionBeforeAddSendStream) {
// Allocate the capturer first to prevent early destruction before channel's
// dtor is called.
cricket::FakeVideoCapturer capturer;
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, parameters.codecs));
// Add CVO extension.
const int id = 1;
parameters.extensions.push_back(
RtpExtension(RtpExtension::kVideoRotationUri, id));
EXPECT_TRUE(channel->SetSendParameters(parameters));
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(kSsrc)));
// Set capturer.
EXPECT_TRUE(channel->SetVideoSend(kSsrc, true, nullptr, &capturer));
// Verify capturer has turned off applying rotation.
EXPECT_FALSE(capturer.apply_rotation());
}
TEST_F(WebRtcVideoEngine2Test, CVOSetHeaderExtensionAfterCapturer) {
cricket::FakeVideoCapturer capturer;
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP9, "VP9");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kVp9Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, parameters.codecs));
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(kSsrc)));
// Set capturer.
EXPECT_TRUE(channel->SetVideoSend(kSsrc, true, nullptr, &capturer));
// Verify capturer has turned on applying rotation.
EXPECT_TRUE(capturer.apply_rotation());
// Add CVO extension.
const int id = 1;
parameters.extensions.push_back(
RtpExtension(RtpExtension::kVideoRotationUri, id));
// Also remove the first codec to trigger a codec change as well.
parameters.codecs.erase(parameters.codecs.begin());
EXPECT_TRUE(channel->SetSendParameters(parameters));
// Verify capturer has turned off applying rotation.
EXPECT_FALSE(capturer.apply_rotation());
// Verify removing header extension turns on applying rotation.
parameters.extensions.clear();
EXPECT_TRUE(channel->SetSendParameters(parameters));
EXPECT_TRUE(capturer.apply_rotation());
}
TEST_F(WebRtcVideoEngine2Test, SetSendFailsBeforeSettingCodecs) {
engine_.Init();
std::unique_ptr<VideoMediaChannel> channel(
engine_.CreateChannel(call_.get(), MediaConfig(), VideoOptions()));
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(123)));
EXPECT_FALSE(channel->SetSend(true))
<< "Channel should not start without codecs.";
EXPECT_TRUE(channel->SetSend(false))
<< "Channel should be stoppable even without set codecs.";
}
TEST_F(WebRtcVideoEngine2Test, GetStatsWithoutSendCodecsSetDoesNotCrash) {
engine_.Init();
std::unique_ptr<VideoMediaChannel> channel(
engine_.CreateChannel(call_.get(), MediaConfig(), VideoOptions()));
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(123)));
VideoMediaInfo info;
channel->GetStats(&info);
}
TEST_F(WebRtcVideoEngine2Test, UseExternalFactoryForVp8WhenSupported) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, parameters.codecs));
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
ASSERT_TRUE(encoder_factory.WaitForCreatedVideoEncoders(1));
ASSERT_EQ(1u, encoder_factory.encoders().size());
EXPECT_TRUE(channel->SetSend(true));
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel->SetVideoSend(kSsrc, true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(capturer.CaptureFrame());
// Sending one frame will have reallocated the encoder since input size
// changes from a small default to the actual frame width/height. Wait for
// that to happen then for the frame to be sent.
ASSERT_TRUE(encoder_factory.WaitForCreatedVideoEncoders(2));
EXPECT_TRUE_WAIT(encoder_factory.encoders()[0]->GetNumEncodedFrames() > 0,
kTimeout);
int num_created_encoders = encoder_factory.GetNumCreatedEncoders();
EXPECT_EQ(num_created_encoders, 2);
// Setting codecs of the same type should not reallocate any encoders
// (expecting a no-op).
EXPECT_TRUE(channel->SetSendParameters(parameters));
EXPECT_EQ(num_created_encoders, encoder_factory.GetNumCreatedEncoders());
// Remove stream previously added to free the external encoder instance.
EXPECT_TRUE(channel->RemoveSendStream(kSsrc));
EXPECT_EQ(0u, encoder_factory.encoders().size());
}
void WebRtcVideoEngine2Test::TestExtendedEncoderOveruse(
bool use_external_encoder) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
std::unique_ptr<VideoMediaChannel> channel;
FakeCall* fake_call = new FakeCall(webrtc::Call::Config());
call_.reset(fake_call);
if (use_external_encoder) {
channel.reset(
SetUpForExternalEncoderFactory(&encoder_factory, parameters.codecs));
} else {
engine_.Init();
channel.reset(
engine_.CreateChannel(call_.get(), MediaConfig(), VideoOptions()));
}
ASSERT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
EXPECT_TRUE(channel->SetSendParameters(parameters));
EXPECT_TRUE(channel->SetSend(true));
FakeVideoSendStream* stream = fake_call->GetVideoSendStreams()[0];
EXPECT_EQ(use_external_encoder,
stream->GetConfig().encoder_settings.full_overuse_time);
// Remove stream previously added to free the external encoder instance.
EXPECT_TRUE(channel->RemoveSendStream(kSsrc));
}
TEST_F(WebRtcVideoEngine2Test, EnablesFullEncoderTimeForExternalEncoders) {
TestExtendedEncoderOveruse(true);
}
TEST_F(WebRtcVideoEngine2Test, DisablesFullEncoderTimeForNonExternalEncoders) {
TestExtendedEncoderOveruse(false);
}
#if !defined(RTC_DISABLE_VP9)
TEST_F(WebRtcVideoEngine2Test, CanConstructDecoderForVp9EncoderFactory) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP9, "VP9");
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kVp9Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, codecs));
EXPECT_TRUE(
channel->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
}
#endif // !defined(RTC_DISABLE_VP9)
TEST_F(WebRtcVideoEngine2Test, PropagatesInputFrameTimestamp) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kVp8Codec);
FakeCall* fake_call = new FakeCall(webrtc::Call::Config());
call_.reset(fake_call);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, codecs));
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
FakeVideoCapturer capturer;
EXPECT_TRUE(channel->SetVideoSend(kSsrc, true, nullptr, &capturer));
capturer.Start(cricket::VideoFormat(1280, 720,
cricket::VideoFormat::FpsToInterval(60),
cricket::FOURCC_I420));
channel->SetSend(true);
FakeVideoSendStream* stream = fake_call->GetVideoSendStreams()[0];
EXPECT_TRUE(capturer.CaptureFrame());
int64_t last_timestamp = stream->GetLastTimestamp();
for (int i = 0; i < 10; i++) {
EXPECT_TRUE(capturer.CaptureFrame());
int64_t timestamp = stream->GetLastTimestamp();
int64_t interval = timestamp - last_timestamp;
// Precision changes from nanosecond to millisecond.
// Allow error to be no more than 1.
EXPECT_NEAR(cricket::VideoFormat::FpsToInterval(60) / 1E6, interval, 1);
last_timestamp = timestamp;
}
capturer.Start(cricket::VideoFormat(1280, 720,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420));
EXPECT_TRUE(capturer.CaptureFrame());
last_timestamp = stream->GetLastTimestamp();
for (int i = 0; i < 10; i++) {
EXPECT_TRUE(capturer.CaptureFrame());
int64_t timestamp = stream->GetLastTimestamp();
int64_t interval = timestamp - last_timestamp;
// Precision changes from nanosecond to millisecond.
// Allow error to be no more than 1.
EXPECT_NEAR(cricket::VideoFormat::FpsToInterval(30) / 1E6, interval, 1);
last_timestamp = timestamp;
}
// Remove stream previously added to free the external encoder instance.
EXPECT_TRUE(channel->RemoveSendStream(kSsrc));
}
TEST_F(WebRtcVideoEngine2Test,
ProducesIncreasingTimestampsWithResetInputSources) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kVp8Codec);
FakeCall* fake_call = new FakeCall(webrtc::Call::Config());
call_.reset(fake_call);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, codecs));
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
channel->SetSend(true);
FakeVideoSendStream* stream = fake_call->GetVideoSendStreams()[0];
FakeVideoCapturer capturer1;
EXPECT_TRUE(channel->SetVideoSend(kSsrc, true, nullptr, &capturer1));
cricket::CapturedFrame frame;
frame.width = 1280;
frame.height = 720;
frame.fourcc = cricket::FOURCC_I420;
frame.data_size = frame.width * frame.height +
2 * ((frame.width + 1) / 2) * ((frame.height + 1) / 2);
std::unique_ptr<char[]> data(new char[frame.data_size]);
frame.data = data.get();
memset(frame.data, 1, frame.data_size);
int64_t initial_timestamp = rtc::TimeNanos();
frame.time_stamp = initial_timestamp;
// Deliver initial frame.
capturer1.SignalCapturedFrame(&frame);
// Deliver next frame 1 second later.
frame.time_stamp += rtc::kNumNanosecsPerSec;
rtc::Thread::Current()->SleepMs(1000);
capturer1.SignalCapturedFrame(&frame);
int64_t capturer1_last_timestamp = stream->GetLastTimestamp();
// Reset input source, should still be continuous even though input-frame
// timestamp is less than before.
FakeVideoCapturer capturer2;
EXPECT_TRUE(channel->SetVideoSend(kSsrc, true, nullptr, &capturer2));
rtc::Thread::Current()->SleepMs(1);
// Deliver with a timestamp (10 seconds) before the previous initial one,
// these should not be related at all anymore and it should still work fine.
frame.time_stamp = initial_timestamp - 10 * rtc::kNumNanosecsPerSec;
capturer2.SignalCapturedFrame(&frame);
// New timestamp should be at least 1ms in the future and not old.
EXPECT_GT(stream->GetLastTimestamp(), capturer1_last_timestamp);
EXPECT_TRUE(channel->RemoveSendStream(kSsrc));
}
VideoMediaChannel* WebRtcVideoEngine2Test::SetUpForExternalEncoderFactory(
cricket::WebRtcVideoEncoderFactory* encoder_factory,
const std::vector<VideoCodec>& codecs) {
engine_.SetExternalEncoderFactory(encoder_factory);
engine_.Init();
VideoMediaChannel* channel =
engine_.CreateChannel(call_.get(), MediaConfig(), VideoOptions());
cricket::VideoSendParameters parameters;
parameters.codecs = codecs;
EXPECT_TRUE(channel->SetSendParameters(parameters));
return channel;
}
VideoMediaChannel* WebRtcVideoEngine2Test::SetUpForExternalDecoderFactory(
cricket::WebRtcVideoDecoderFactory* decoder_factory,
const std::vector<VideoCodec>& codecs) {
engine_.SetExternalDecoderFactory(decoder_factory);
engine_.Init();
VideoMediaChannel* channel =
engine_.CreateChannel(call_.get(), MediaConfig(), VideoOptions());
cricket::VideoRecvParameters parameters;
parameters.codecs = codecs;
EXPECT_TRUE(channel->SetRecvParameters(parameters));
return channel;
}
TEST_F(WebRtcVideoEngine2Test, UsesSimulcastAdapterForVp8Factories) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kVp8Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, codecs));
std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
EXPECT_TRUE(
channel->AddSendStream(CreateSimStreamParams("cname", ssrcs)));
EXPECT_TRUE(channel->SetSend(true));
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel->SetVideoSend(ssrcs.front(), true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_TRUE(encoder_factory.WaitForCreatedVideoEncoders(2));
// Verify that encoders are configured for simulcast through adapter
// (increasing resolution and only configured to send one stream each).
int prev_width = -1;
for (size_t i = 0; i < encoder_factory.encoders().size(); ++i) {
ASSERT_TRUE(encoder_factory.encoders()[i]->WaitForInitEncode());
webrtc::VideoCodec codec_settings =
encoder_factory.encoders()[i]->GetCodecSettings();
EXPECT_EQ(0, codec_settings.numberOfSimulcastStreams);
EXPECT_GT(codec_settings.width, prev_width);
prev_width = codec_settings.width;
}
EXPECT_TRUE(channel->SetVideoSend(ssrcs.front(), true, nullptr, nullptr));
channel.reset();
ASSERT_EQ(0u, encoder_factory.encoders().size());
}
TEST_F(WebRtcVideoEngine2Test, ChannelWithExternalH264CanChangeToInternalVp8) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kH264Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, codecs));
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
ASSERT_EQ(1u, encoder_factory.encoders().size());
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
EXPECT_TRUE(channel->SetSendParameters(parameters));
ASSERT_EQ(0u, encoder_factory.encoders().size());
}
TEST_F(WebRtcVideoEngine2Test,
DontUseExternalEncoderFactoryForUnsupportedCodecs) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kVp8Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, codecs));
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
// Make sure DestroyVideoEncoder was called on the factory.
ASSERT_EQ(0u, encoder_factory.encoders().size());
}
TEST_F(WebRtcVideoEngine2Test,
UsesSimulcastAdapterForVp8WithCombinedVP8AndH264Factory) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kVp8Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, codecs));
std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
EXPECT_TRUE(
channel->AddSendStream(CreateSimStreamParams("cname", ssrcs)));
EXPECT_TRUE(channel->SetSend(true));
// Send a fake frame, or else the media engine will configure the simulcast
// encoder adapter at a low-enough size that it'll only create a single
// encoder layer.
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel->SetVideoSend(ssrcs.front(), true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_TRUE(encoder_factory.WaitForCreatedVideoEncoders(2));
ASSERT_TRUE(encoder_factory.encoders()[0]->WaitForInitEncode());
EXPECT_EQ(webrtc::kVideoCodecVP8,
encoder_factory.encoders()[0]->GetCodecSettings().codecType);
channel.reset();
// Make sure DestroyVideoEncoder was called on the factory.
EXPECT_EQ(0u, encoder_factory.encoders().size());
}
TEST_F(WebRtcVideoEngine2Test,
DestroysNonSimulcastEncoderFromCombinedVP8AndH264Factory) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kH264Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, codecs));
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
ASSERT_EQ(1u, encoder_factory.encoders().size());
ASSERT_TRUE(encoder_factory.encoders()[0]->WaitForInitEncode());
EXPECT_EQ(webrtc::kVideoCodecH264,
encoder_factory.encoders()[0]->GetCodecSettings().codecType);
channel.reset();
// Make sure DestroyVideoEncoder was called on the factory.
ASSERT_EQ(0u, encoder_factory.encoders().size());
}
TEST_F(WebRtcVideoEngine2Test, SimulcastDisabledForH264) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kH264Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalEncoderFactory(&encoder_factory, codecs));
const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
EXPECT_TRUE(
channel->AddSendStream(cricket::CreateSimStreamParams("cname", ssrcs)));
// Send a frame of 720p. This should trigger a "real" encoder initialization.
cricket::VideoFormat format(
1280, 720, cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420);
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel->SetVideoSend(ssrcs[0], true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(format));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_EQ(1u, encoder_factory.encoders().size());
FakeWebRtcVideoEncoder* encoder = encoder_factory.encoders()[0];
ASSERT_TRUE(encoder_factory.encoders()[0]->WaitForInitEncode());
EXPECT_EQ(webrtc::kVideoCodecH264, encoder->GetCodecSettings().codecType);
EXPECT_EQ(1u, encoder->GetCodecSettings().numberOfSimulcastStreams);
EXPECT_TRUE(channel->SetVideoSend(ssrcs[0], true, nullptr, nullptr));
}
// Test that external codecs are added to the end of the supported codec list.
TEST_F(WebRtcVideoEngine2Test, ReportSupportedExternalCodecs) {
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecUnknown,
"FakeExternalCodec");
engine_.SetExternalEncoderFactory(&encoder_factory);
engine_.Init();
std::vector<cricket::VideoCodec> codecs(engine_.codecs());
ASSERT_GE(codecs.size(), 2u);
cricket::VideoCodec internal_codec = codecs.front();
cricket::VideoCodec external_codec = codecs.back();
// The external codec will appear at last.
EXPECT_EQ("VP8", internal_codec.name);
EXPECT_EQ("FakeExternalCodec", external_codec.name);
}
TEST_F(WebRtcVideoEngine2Test, RegisterExternalDecodersIfSupported) {
cricket::FakeWebRtcVideoDecoderFactory decoder_factory;
decoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8);
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalDecoderFactory(&decoder_factory, parameters.codecs));
EXPECT_TRUE(
channel->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
ASSERT_EQ(1u, decoder_factory.decoders().size());
// Setting codecs of the same type should not reallocate the decoder.
EXPECT_TRUE(channel->SetRecvParameters(parameters));
EXPECT_EQ(1, decoder_factory.GetNumCreatedDecoders());
// Remove stream previously added to free the external decoder instance.
EXPECT_TRUE(channel->RemoveRecvStream(kSsrc));
EXPECT_EQ(0u, decoder_factory.decoders().size());
}
// Verifies that we can set up decoders that are not internally supported.
TEST_F(WebRtcVideoEngine2Test, RegisterExternalH264DecoderIfSupported) {
// TODO(pbos): Do not assume that encoder/decoder support is symmetric. We
// can't even query the WebRtcVideoDecoderFactory for supported codecs.
// For now we add a FakeWebRtcVideoEncoderFactory to add H264 to supported
// codecs.
cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
engine_.SetExternalEncoderFactory(&encoder_factory);
cricket::FakeWebRtcVideoDecoderFactory decoder_factory;
decoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264);
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(kH264Codec);
std::unique_ptr<VideoMediaChannel> channel(
SetUpForExternalDecoderFactory(&decoder_factory, codecs));
EXPECT_TRUE(
channel->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
ASSERT_EQ(1u, decoder_factory.decoders().size());
}
class WebRtcVideoChannel2BaseTest
: public VideoMediaChannelTest<WebRtcVideoEngine2, WebRtcVideoChannel2> {
protected:
typedef VideoMediaChannelTest<WebRtcVideoEngine2, WebRtcVideoChannel2> Base;
cricket::VideoCodec DefaultCodec() override { return kVp8Codec; }
};
#define WEBRTC_BASE_TEST(test) \
TEST_F(WebRtcVideoChannel2BaseTest, test) { Base::test(); }
#define WEBRTC_DISABLED_BASE_TEST(test) \
TEST_F(WebRtcVideoChannel2BaseTest, DISABLED_##test) { Base::test(); }
WEBRTC_BASE_TEST(SetSend);
WEBRTC_BASE_TEST(SetSendWithoutCodecs);
WEBRTC_BASE_TEST(SetSendSetsTransportBufferSizes);
WEBRTC_BASE_TEST(GetStats);
WEBRTC_BASE_TEST(GetStatsMultipleRecvStreams);
WEBRTC_BASE_TEST(GetStatsMultipleSendStreams);
WEBRTC_BASE_TEST(SetSendBandwidth);
WEBRTC_BASE_TEST(SetSendSsrc);
WEBRTC_BASE_TEST(SetSendSsrcAfterSetCodecs);
WEBRTC_BASE_TEST(SetSink);
WEBRTC_BASE_TEST(AddRemoveSendStreams);
WEBRTC_BASE_TEST(SimulateConference);
WEBRTC_DISABLED_BASE_TEST(AddRemoveCapturer);
WEBRTC_BASE_TEST(RemoveCapturerWithoutAdd);
WEBRTC_BASE_TEST(AddRemoveCapturerMultipleSources);
// TODO(pbos): Figure out why this fails so often.
WEBRTC_DISABLED_BASE_TEST(HighAspectHighHeightCapturer);
WEBRTC_BASE_TEST(RejectEmptyStreamParams);
WEBRTC_BASE_TEST(AdaptResolution16x10);
WEBRTC_BASE_TEST(AdaptResolution4x3);
// TODO(juberti): Restore this test once we support sending 0 fps.
WEBRTC_DISABLED_BASE_TEST(AdaptDropAllFrames);
// TODO(juberti): Understand why we get decode errors on this test.
WEBRTC_DISABLED_BASE_TEST(AdaptFramerate);
WEBRTC_BASE_TEST(SendsLowerResolutionOnSmallerFrames);
WEBRTC_BASE_TEST(MultipleSendStreams);
TEST_F(WebRtcVideoChannel2BaseTest, SendAndReceiveVp8Vga) {
SendAndReceive(cricket::VideoCodec(100, "VP8", 640, 400, 30));
}
TEST_F(WebRtcVideoChannel2BaseTest, SendAndReceiveVp8Qvga) {
SendAndReceive(cricket::VideoCodec(100, "VP8", 320, 200, 30));
}
TEST_F(WebRtcVideoChannel2BaseTest, SendAndReceiveVp8SvcQqvga) {
SendAndReceive(cricket::VideoCodec(100, "VP8", 160, 100, 30));
}
TEST_F(WebRtcVideoChannel2BaseTest, TwoStreamsSendAndReceive) {
// Set a high bitrate to not be downscaled by VP8 due to low initial start
// bitrates. This currently happens at <250k, and two streams sharing 300k
// initially will use QVGA instead of VGA.
// TODO(pbos): Set up the quality scaler so that both senders reliably start
// at QVGA, then verify that instead.
cricket::VideoCodec codec = kVp8Codec;
codec.params[kCodecParamStartBitrate] = "1000000";
Base::TwoStreamsSendAndReceive(codec);
}
class WebRtcVideoChannel2Test : public WebRtcVideoEngine2Test {
public:
WebRtcVideoChannel2Test() : WebRtcVideoChannel2Test("") {}
explicit WebRtcVideoChannel2Test(const char* field_trials)
: WebRtcVideoEngine2Test(field_trials), last_ssrc_(0) {}
void SetUp() override {
fake_call_.reset(new FakeCall(webrtc::Call::Config()));
engine_.Init();
channel_.reset(
engine_.CreateChannel(fake_call_.get(), MediaConfig(), VideoOptions()));
last_ssrc_ = 123;
send_parameters_.codecs = engine_.codecs();
recv_parameters_.codecs = engine_.codecs();
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
}
protected:
FakeVideoSendStream* AddSendStream() {
return AddSendStream(StreamParams::CreateLegacy(++last_ssrc_));
}
FakeVideoSendStream* AddSendStream(const StreamParams& sp) {
size_t num_streams = fake_call_->GetVideoSendStreams().size();
EXPECT_TRUE(channel_->AddSendStream(sp));
std::vector<FakeVideoSendStream*> streams =
fake_call_->GetVideoSendStreams();
EXPECT_EQ(num_streams + 1, streams.size());
return streams[streams.size() - 1];
}
std::vector<FakeVideoSendStream*> GetFakeSendStreams() {
return fake_call_->GetVideoSendStreams();
}
FakeVideoReceiveStream* AddRecvStream() {
return AddRecvStream(StreamParams::CreateLegacy(++last_ssrc_));
}
FakeVideoReceiveStream* AddRecvStream(const StreamParams& sp) {
size_t num_streams = fake_call_->GetVideoReceiveStreams().size();
EXPECT_TRUE(channel_->AddRecvStream(sp));
std::vector<FakeVideoReceiveStream*> streams =
fake_call_->GetVideoReceiveStreams();
EXPECT_EQ(num_streams + 1, streams.size());
return streams[streams.size() - 1];
}
void SetSendCodecsShouldWorkForBitrates(const char* min_bitrate_kbps,
int expected_min_bitrate_bps,
const char* start_bitrate_kbps,
int expected_start_bitrate_bps,
const char* max_bitrate_kbps,
int expected_max_bitrate_bps) {
auto& codecs = send_parameters_.codecs;
codecs.clear();
codecs.push_back(kVp8Codec);
codecs[0].params[kCodecParamMinBitrate] = min_bitrate_kbps;
codecs[0].params[kCodecParamStartBitrate] = start_bitrate_kbps;
codecs[0].params[kCodecParamMaxBitrate] = max_bitrate_kbps;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(expected_min_bitrate_bps,
fake_call_->GetConfig().bitrate_config.min_bitrate_bps);
EXPECT_EQ(expected_start_bitrate_bps,
fake_call_->GetConfig().bitrate_config.start_bitrate_bps);
EXPECT_EQ(expected_max_bitrate_bps,
fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
}
void TestSetSendRtpHeaderExtensions(const std::string& ext_uri) {
// Enable extension.
const int id = 1;
cricket::VideoSendParameters parameters = send_parameters_;
parameters.extensions.push_back(RtpExtension(ext_uri, id));
EXPECT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* send_stream =
AddSendStream(cricket::StreamParams::CreateLegacy(123));
// Verify the send extension id.
ASSERT_EQ(1u, send_stream->GetConfig().rtp.extensions.size());
EXPECT_EQ(id, send_stream->GetConfig().rtp.extensions[0].id);
EXPECT_EQ(ext_uri, send_stream->GetConfig().rtp.extensions[0].uri);
// Verify call with same set of extensions returns true.
EXPECT_TRUE(channel_->SetSendParameters(parameters));
// Verify that SetSendRtpHeaderExtensions doesn't implicitly add them for
// receivers.
EXPECT_TRUE(AddRecvStream(cricket::StreamParams::CreateLegacy(123))
->GetConfig()
.rtp.extensions.empty());
// Verify that existing RTP header extensions can be removed.
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
send_stream = fake_call_->GetVideoSendStreams()[0];
EXPECT_TRUE(send_stream->GetConfig().rtp.extensions.empty());
// Verify that adding receive RTP header extensions adds them for existing
// streams.
EXPECT_TRUE(channel_->SetSendParameters(parameters));
send_stream = fake_call_->GetVideoSendStreams()[0];
ASSERT_EQ(1u, send_stream->GetConfig().rtp.extensions.size());
EXPECT_EQ(id, send_stream->GetConfig().rtp.extensions[0].id);
EXPECT_EQ(ext_uri, send_stream->GetConfig().rtp.extensions[0].uri);
}
void TestSetRecvRtpHeaderExtensions(const std::string& ext_uri) {
// Enable extension.
const int id = 1;
cricket::VideoRecvParameters parameters = recv_parameters_;
parameters.extensions.push_back(RtpExtension(ext_uri, id));
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
FakeVideoReceiveStream* recv_stream =
AddRecvStream(cricket::StreamParams::CreateLegacy(123));
// Verify the recv extension id.
ASSERT_EQ(1u, recv_stream->GetConfig().rtp.extensions.size());
EXPECT_EQ(id, recv_stream->GetConfig().rtp.extensions[0].id);
EXPECT_EQ(ext_uri, recv_stream->GetConfig().rtp.extensions[0].uri);
// Verify call with same set of extensions returns true.
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
// Verify that SetRecvRtpHeaderExtensions doesn't implicitly add them for
// senders.
EXPECT_TRUE(AddSendStream(cricket::StreamParams::CreateLegacy(123))
->GetConfig()
.rtp.extensions.empty());
// Verify that existing RTP header extensions can be removed.
EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_TRUE(recv_stream->GetConfig().rtp.extensions.empty());
// Verify that adding receive RTP header extensions adds them for existing
// streams.
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
recv_stream = fake_call_->GetVideoReceiveStreams()[0];
ASSERT_EQ(1u, recv_stream->GetConfig().rtp.extensions.size());
EXPECT_EQ(id, recv_stream->GetConfig().rtp.extensions[0].id);
EXPECT_EQ(ext_uri, recv_stream->GetConfig().rtp.extensions[0].uri);
}
void TestExtensionFilter(const std::vector<std::string>& extensions,
const std::string& expected_extension) {
cricket::VideoSendParameters parameters = send_parameters_;
int expected_id = -1;
int id = 1;
for (const std::string& extension : extensions) {
if (extension == expected_extension)
expected_id = id;
parameters.extensions.push_back(RtpExtension(extension, id++));
}
EXPECT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* send_stream =
AddSendStream(cricket::StreamParams::CreateLegacy(123));
// Verify that only one of them has been set, and that it is the one with
// highest priority (transport sequence number).
ASSERT_EQ(1u, send_stream->GetConfig().rtp.extensions.size());
EXPECT_EQ(expected_id, send_stream->GetConfig().rtp.extensions[0].id);
EXPECT_EQ(expected_extension,
send_stream->GetConfig().rtp.extensions[0].uri);
}
void TestCpuAdaptation(bool enable_overuse, bool is_screenshare);
void TestReceiverLocalSsrcConfiguration(bool receiver_first);
void TestReceiveUnsignalledSsrcPacket(uint8_t payload_type,
bool expect_created_receive_stream);
FakeVideoSendStream* SetDenoisingOption(
uint32_t ssrc,
cricket::FakeVideoCapturer* capturer,
bool enabled) {
cricket::VideoOptions options;
options.video_noise_reduction = rtc::Optional<bool>(enabled);
EXPECT_TRUE(channel_->SetVideoSend(ssrc, true, &options, capturer));
// Options only take effect on the next frame.
EXPECT_TRUE(capturer->CaptureFrame());
return fake_call_->GetVideoSendStreams().back();
}
FakeVideoSendStream* SetUpSimulcast(bool enabled, bool with_rtx) {
const int kRtxSsrcOffset = 0xDEADBEEF;
last_ssrc_ += 3;
std::vector<uint32_t> ssrcs;
std::vector<uint32_t> rtx_ssrcs;
uint32_t num_streams = enabled ? 3 : 1;
for (uint32_t i = 0; i < num_streams; ++i) {
uint32_t ssrc = last_ssrc_ + i;
ssrcs.push_back(ssrc);
if (with_rtx) {
rtx_ssrcs.push_back(ssrc + kRtxSsrcOffset);
}
}
if (with_rtx) {
return AddSendStream(
cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs));
}
return AddSendStream(CreateSimStreamParams("cname", ssrcs));
}
int GetMaxEncoderBitrate(cricket::FakeVideoCapturer& capturer) {
EXPECT_TRUE(capturer.CaptureFrame());
std::vector<FakeVideoSendStream*> streams =
fake_call_->GetVideoSendStreams();
EXPECT_TRUE(streams.size() > 0);
FakeVideoSendStream* stream = streams[streams.size() - 1];
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig();
EXPECT_EQ(1, encoder_config.streams.size());
return encoder_config.streams[0].max_bitrate_bps;
}
void SetAndExpectMaxBitrate(cricket::FakeVideoCapturer& capturer,
int global_max,
int stream_max,
int expected_encoder_bitrate) {
VideoSendParameters limited_send_params = send_parameters_;
limited_send_params.max_bandwidth_bps = global_max;
EXPECT_TRUE(channel_->SetSendParameters(limited_send_params));
webrtc::RtpParameters parameters =
channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
parameters.encodings[0].max_bitrate_bps = stream_max;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters));
// Read back the parameteres and verify they have the correct value
parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
EXPECT_EQ(stream_max, parameters.encodings[0].max_bitrate_bps);
// Verify that the new value propagated down to the encoder
EXPECT_EQ(expected_encoder_bitrate, GetMaxEncoderBitrate(capturer));
}
std::unique_ptr<FakeCall> fake_call_;
std::unique_ptr<VideoMediaChannel> channel_;
cricket::VideoSendParameters send_parameters_;
cricket::VideoRecvParameters recv_parameters_;
uint32_t last_ssrc_;
};
TEST_F(WebRtcVideoChannel2Test, SetsSyncGroupFromSyncLabel) {
const uint32_t kVideoSsrc = 123;
const std::string kSyncLabel = "AvSyncLabel";
cricket::StreamParams sp = cricket::StreamParams::CreateLegacy(kVideoSsrc);
sp.sync_label = kSyncLabel;
EXPECT_TRUE(channel_->AddRecvStream(sp));
EXPECT_EQ(1, fake_call_->GetVideoReceiveStreams().size());
EXPECT_EQ(kSyncLabel,
fake_call_->GetVideoReceiveStreams()[0]->GetConfig().sync_group)
<< "SyncGroup should be set based on sync_label";
}
TEST_F(WebRtcVideoChannel2Test, RecvStreamWithSimAndRtx) {
cricket::VideoSendParameters parameters;
parameters.codecs = engine_.codecs();
EXPECT_TRUE(channel_->SetSendParameters(parameters));
EXPECT_TRUE(channel_->SetSend(true));
parameters.conference_mode = true;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
// Send side.
const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
FakeVideoSendStream* send_stream = AddSendStream(
cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs));
ASSERT_EQ(rtx_ssrcs.size(), send_stream->GetConfig().rtp.rtx.ssrcs.size());
for (size_t i = 0; i < rtx_ssrcs.size(); ++i)
EXPECT_EQ(rtx_ssrcs[i], send_stream->GetConfig().rtp.rtx.ssrcs[i]);
// Receiver side.
FakeVideoReceiveStream* recv_stream = AddRecvStream(
cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs));
EXPECT_FALSE(recv_stream->GetConfig().rtp.rtx.empty());
EXPECT_EQ(recv_stream->GetConfig().decoders.size(),
recv_stream->GetConfig().rtp.rtx.size())
<< "RTX should be mapped for all decoders/payload types.";
for (const auto& kv : recv_stream->GetConfig().rtp.rtx) {
EXPECT_EQ(rtx_ssrcs[0], kv.second.ssrc);
}
}
TEST_F(WebRtcVideoChannel2Test, RecvStreamWithRtx) {
// Setup one channel with an associated RTX stream.
cricket::StreamParams params =
cricket::StreamParams::CreateLegacy(kSsrcs1[0]);
params.AddFidSsrc(kSsrcs1[0], kRtxSsrcs1[0]);
FakeVideoReceiveStream* recv_stream = AddRecvStream(params);
EXPECT_EQ(kRtxSsrcs1[0],
recv_stream->GetConfig().rtp.rtx.begin()->second.ssrc);
}
TEST_F(WebRtcVideoChannel2Test, RecvStreamNoRtx) {
// Setup one channel without an associated RTX stream.
cricket::StreamParams params =
cricket::StreamParams::CreateLegacy(kSsrcs1[0]);
FakeVideoReceiveStream* recv_stream = AddRecvStream(params);
ASSERT_TRUE(recv_stream->GetConfig().rtp.rtx.empty());
}
TEST_F(WebRtcVideoChannel2Test, NoHeaderExtesionsByDefault) {
FakeVideoSendStream* send_stream =
AddSendStream(cricket::StreamParams::CreateLegacy(kSsrcs1[0]));
ASSERT_TRUE(send_stream->GetConfig().rtp.extensions.empty());
FakeVideoReceiveStream* recv_stream =
AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrcs1[0]));
ASSERT_TRUE(recv_stream->GetConfig().rtp.extensions.empty());
}
// Test support for RTP timestamp offset header extension.
TEST_F(WebRtcVideoChannel2Test, SendRtpTimestampOffsetHeaderExtensions) {
TestSetSendRtpHeaderExtensions(RtpExtension::kTimestampOffsetUri);
}
TEST_F(WebRtcVideoChannel2Test, RecvRtpTimestampOffsetHeaderExtensions) {
TestSetRecvRtpHeaderExtensions(RtpExtension::kTimestampOffsetUri);
}
// Test support for absolute send time header extension.
TEST_F(WebRtcVideoChannel2Test, SendAbsoluteSendTimeHeaderExtensions) {
TestSetSendRtpHeaderExtensions(RtpExtension::kAbsSendTimeUri);
}
TEST_F(WebRtcVideoChannel2Test, RecvAbsoluteSendTimeHeaderExtensions) {
TestSetRecvRtpHeaderExtensions(RtpExtension::kAbsSendTimeUri);
}
TEST_F(WebRtcVideoChannel2Test, FiltersExtensionsPicksTransportSeqNum) {
// Enable three redundant extensions.
std::vector<std::string> extensions;
extensions.push_back(RtpExtension::kAbsSendTimeUri);
extensions.push_back(RtpExtension::kTimestampOffsetUri);
extensions.push_back(RtpExtension::kTransportSequenceNumberUri);
TestExtensionFilter(extensions, RtpExtension::kTransportSequenceNumberUri);
}
TEST_F(WebRtcVideoChannel2Test, FiltersExtensionsPicksAbsSendTime) {
// Enable two redundant extensions.
std::vector<std::string> extensions;
extensions.push_back(RtpExtension::kAbsSendTimeUri);
extensions.push_back(RtpExtension::kTimestampOffsetUri);
TestExtensionFilter(extensions, RtpExtension::kAbsSendTimeUri);
}
class WebRtcVideoChannel2WithSendSideBweTest : public WebRtcVideoChannel2Test {
public:
WebRtcVideoChannel2WithSendSideBweTest()
: WebRtcVideoChannel2Test("WebRTC-SendSideBwe/Enabled/") {}
};
// Test support for transport sequence number header extension.
TEST_F(WebRtcVideoChannel2WithSendSideBweTest,
SendTransportSequenceNumberHeaderExtensions) {
TestSetSendRtpHeaderExtensions(RtpExtension::kTransportSequenceNumberUri);
}
TEST_F(WebRtcVideoChannel2WithSendSideBweTest,
RecvTransportSequenceNumberHeaderExtensions) {
TestSetRecvRtpHeaderExtensions(RtpExtension::kTransportSequenceNumberUri);
}
// Test support for video rotation header extension.
TEST_F(WebRtcVideoChannel2Test, SendVideoRotationHeaderExtensions) {
TestSetSendRtpHeaderExtensions(RtpExtension::kVideoRotationUri);
}
TEST_F(WebRtcVideoChannel2Test, RecvVideoRotationHeaderExtensions) {
TestSetRecvRtpHeaderExtensions(RtpExtension::kVideoRotationUri);
}
TEST_F(WebRtcVideoChannel2Test, IdenticalSendExtensionsDoesntRecreateStream) {
const int kAbsSendTimeId = 1;
const int kVideoRotationId = 2;
send_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kAbsSendTimeUri, kAbsSendTimeId));
send_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kVideoRotationUri, kVideoRotationId));
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
FakeVideoSendStream* send_stream =
AddSendStream(cricket::StreamParams::CreateLegacy(123));
EXPECT_EQ(1, fake_call_->GetNumCreatedSendStreams());
ASSERT_EQ(2u, send_stream->GetConfig().rtp.extensions.size());
// Setting the same extensions (even if in different order) shouldn't
// reallocate the stream.
std::reverse(send_parameters_.extensions.begin(),
send_parameters_.extensions.end());
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(1, fake_call_->GetNumCreatedSendStreams());
// Setting different extensions should recreate the stream.
send_parameters_.extensions.resize(1);
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(2, fake_call_->GetNumCreatedSendStreams());
}
TEST_F(WebRtcVideoChannel2Test, IdenticalRecvExtensionsDoesntRecreateStream) {
const int kTOffsetId = 1;
const int kAbsSendTimeId = 2;
const int kVideoRotationId = 3;
recv_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kAbsSendTimeUri, kAbsSendTimeId));
recv_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kTimestampOffsetUri, kTOffsetId));
recv_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kVideoRotationUri, kVideoRotationId));
EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
FakeVideoReceiveStream* recv_stream =
AddRecvStream(cricket::StreamParams::CreateLegacy(123));
EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
ASSERT_EQ(3u, recv_stream->GetConfig().rtp.extensions.size());
// Setting the same extensions (even if in different order) shouldn't
// reallocate the stream.
std::reverse(recv_parameters_.extensions.begin(),
recv_parameters_.extensions.end());
EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
// Setting different extensions should recreate the stream.
recv_parameters_.extensions.resize(1);
EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
EXPECT_EQ(2, fake_call_->GetNumCreatedReceiveStreams());
}
TEST_F(WebRtcVideoChannel2Test,
SetSendRtpHeaderExtensionsExcludeUnsupportedExtensions) {
const int kUnsupportedId = 1;
const int kTOffsetId = 2;
send_parameters_.extensions.push_back(
RtpExtension(kUnsupportedExtensionName, kUnsupportedId));
send_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kTimestampOffsetUri, kTOffsetId));
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
FakeVideoSendStream* send_stream =
AddSendStream(cricket::StreamParams::CreateLegacy(123));
// Only timestamp offset extension is set to send stream,
// unsupported rtp extension is ignored.
ASSERT_EQ(1u, send_stream->GetConfig().rtp.extensions.size());
EXPECT_STREQ(RtpExtension::kTimestampOffsetUri,
send_stream->GetConfig().rtp.extensions[0].uri.c_str());
}
TEST_F(WebRtcVideoChannel2Test,
SetRecvRtpHeaderExtensionsExcludeUnsupportedExtensions) {
const int kUnsupportedId = 1;
const int kTOffsetId = 2;
recv_parameters_.extensions.push_back(
RtpExtension(kUnsupportedExtensionName, kUnsupportedId));
recv_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kTimestampOffsetUri, kTOffsetId));
EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
FakeVideoReceiveStream* recv_stream =
AddRecvStream(cricket::StreamParams::CreateLegacy(123));
// Only timestamp offset extension is set to receive stream,
// unsupported rtp extension is ignored.
ASSERT_EQ(1u, recv_stream->GetConfig().rtp.extensions.size());
EXPECT_STREQ(RtpExtension::kTimestampOffsetUri,
recv_stream->GetConfig().rtp.extensions[0].uri.c_str());
}
TEST_F(WebRtcVideoChannel2Test, SetSendRtpHeaderExtensionsRejectsIncorrectIds) {
const int kIncorrectIds[] = {-2, -1, 0, 15, 16};
for (size_t i = 0; i < arraysize(kIncorrectIds); ++i) {
send_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kTimestampOffsetUri, kIncorrectIds[i]));
EXPECT_FALSE(channel_->SetSendParameters(send_parameters_))
<< "Bad extension id '" << kIncorrectIds[i] << "' accepted.";
}
}
TEST_F(WebRtcVideoChannel2Test, SetRecvRtpHeaderExtensionsRejectsIncorrectIds) {
const int kIncorrectIds[] = {-2, -1, 0, 15, 16};
for (size_t i = 0; i < arraysize(kIncorrectIds); ++i) {
recv_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kTimestampOffsetUri, kIncorrectIds[i]));
EXPECT_FALSE(channel_->SetRecvParameters(recv_parameters_))
<< "Bad extension id '" << kIncorrectIds[i] << "' accepted.";
}
}
TEST_F(WebRtcVideoChannel2Test, SetSendRtpHeaderExtensionsRejectsDuplicateIds) {
const int id = 1;
send_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kTimestampOffsetUri, id));
send_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kAbsSendTimeUri, id));
EXPECT_FALSE(channel_->SetSendParameters(send_parameters_));
// Duplicate entries are also not supported.
send_parameters_.extensions.clear();
send_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kTimestampOffsetUri, id));
send_parameters_.extensions.push_back(send_parameters_.extensions.back());
EXPECT_FALSE(channel_->SetSendParameters(send_parameters_));
}
TEST_F(WebRtcVideoChannel2Test, SetRecvRtpHeaderExtensionsRejectsDuplicateIds) {
const int id = 1;
recv_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kTimestampOffsetUri, id));
recv_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kAbsSendTimeUri, id));
EXPECT_FALSE(channel_->SetRecvParameters(recv_parameters_));
// Duplicate entries are also not supported.
recv_parameters_.extensions.clear();
recv_parameters_.extensions.push_back(
RtpExtension(RtpExtension::kTimestampOffsetUri, id));
recv_parameters_.extensions.push_back(recv_parameters_.extensions.back());
EXPECT_FALSE(channel_->SetRecvParameters(recv_parameters_));
}
TEST_F(WebRtcVideoChannel2Test, AddRecvStreamOnlyUsesOneReceiveStream) {
EXPECT_TRUE(channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(1)));
EXPECT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
}
TEST_F(WebRtcVideoChannel2Test, RtcpIsCompoundByDefault) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_EQ(webrtc::RtcpMode::kCompound, stream->GetConfig().rtp.rtcp_mode);
}
TEST_F(WebRtcVideoChannel2Test, RembIsEnabledByDefault) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_TRUE(stream->GetConfig().rtp.remb);
}
TEST_F(WebRtcVideoChannel2Test, TransportCcIsEnabledByDefault) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_TRUE(stream->GetConfig().rtp.transport_cc);
}
TEST_F(WebRtcVideoChannel2Test, RembCanBeEnabledAndDisabled) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_TRUE(stream->GetConfig().rtp.remb);
// Verify that REMB is turned off when send(!) codecs without REMB are set.
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
EXPECT_TRUE(parameters.codecs[0].feedback_params.params().empty());
EXPECT_TRUE(channel_->SetSendParameters(parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_FALSE(stream->GetConfig().rtp.remb);
// Verify that REMB is turned on when setting default codecs since the
// default codecs have REMB enabled.
parameters.codecs = engine_.codecs();
EXPECT_TRUE(channel_->SetSendParameters(parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_TRUE(stream->GetConfig().rtp.remb);
}
TEST_F(WebRtcVideoChannel2Test, TransportCcCanBeEnabledAndDisabled) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_TRUE(stream->GetConfig().rtp.transport_cc);
// Verify that transport cc feedback is turned off when send(!) codecs without
// transport cc feedback are set.
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
EXPECT_TRUE(parameters.codecs[0].feedback_params.params().empty());
EXPECT_TRUE(channel_->SetSendParameters(parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_FALSE(stream->GetConfig().rtp.transport_cc);
// Verify that transport cc feedback is turned on when setting default codecs
// since the default codecs have transport cc feedback enabled.
parameters.codecs = engine_.codecs();
EXPECT_TRUE(channel_->SetSendParameters(parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_TRUE(stream->GetConfig().rtp.transport_cc);
}
TEST_F(WebRtcVideoChannel2Test, NackIsEnabledByDefault) {
VerifyCodecHasDefaultFeedbackParams(default_codec_);
cricket::VideoSendParameters parameters;
parameters.codecs = engine_.codecs();
EXPECT_TRUE(channel_->SetSendParameters(parameters));
EXPECT_TRUE(channel_->SetSend(true));
// Send side.
FakeVideoSendStream* send_stream =
AddSendStream(cricket::StreamParams::CreateLegacy(1));
EXPECT_GT(send_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
// Receiver side.
FakeVideoReceiveStream* recv_stream =
AddRecvStream(cricket::StreamParams::CreateLegacy(1));
EXPECT_GT(recv_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
// Nack history size should match between sender and receiver.
EXPECT_EQ(send_stream->GetConfig().rtp.nack.rtp_history_ms,
recv_stream->GetConfig().rtp.nack.rtp_history_ms);
}
TEST_F(WebRtcVideoChannel2Test, NackCanBeEnabledAndDisabled) {
FakeVideoSendStream* send_stream = AddSendStream();
FakeVideoReceiveStream* recv_stream = AddRecvStream();
EXPECT_GT(recv_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
EXPECT_GT(send_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
// Verify that NACK is turned off when send(!) codecs without NACK are set.
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
EXPECT_TRUE(parameters.codecs[0].feedback_params.params().empty());
EXPECT_TRUE(channel_->SetSendParameters(parameters));
recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(0, recv_stream->GetConfig().rtp.nack.rtp_history_ms);
send_stream = fake_call_->GetVideoSendStreams()[0];
EXPECT_EQ(0, send_stream->GetConfig().rtp.nack.rtp_history_ms);
// Verify that NACK is turned on when setting default codecs since the
// default codecs have NACK enabled.
parameters.codecs = engine_.codecs();
EXPECT_TRUE(channel_->SetSendParameters(parameters));
recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_GT(recv_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
send_stream = fake_call_->GetVideoSendStreams()[0];
EXPECT_GT(send_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
}
// This test verifies that new frame sizes reconfigures encoders even though not
// (yet) sending. The purpose of this is to permit encoding as quickly as
// possible once we start sending. Likely the frames being input are from the
// same source that will be sent later, which just means that we're ready
// earlier.
TEST_F(WebRtcVideoChannel2Test, ReconfiguresEncodersWhenNotSending) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec720p);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
channel_->SetSend(false);
FakeVideoSendStream* stream = AddSendStream();
// No frames entered, using default dimensions.
std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
EXPECT_EQ(176u, streams[0].width);
EXPECT_EQ(144u, streams[0].height);
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(capturer.CaptureFrame());
// Frame entered, should be reconfigured to new dimensions.
streams = stream->GetVideoStreams();
EXPECT_EQ(kVp8Codec720p.width, streams[0].width);
EXPECT_EQ(kVp8Codec720p.height, streams[0].height);
// No frames should have been actually put in there though.
EXPECT_EQ(0, stream->GetNumberOfSwappedFrames());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test, UsesCorrectSettingsForScreencast) {
static const int kScreenshareMinBitrateKbps = 800;
cricket::VideoCodec codec = kVp8Codec360p;
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
cricket::FakeVideoCapturer capturer;
VideoOptions min_bitrate_options;
min_bitrate_options.screencast_min_bitrate_kbps =
rtc::Optional<int>(kScreenshareMinBitrateKbps);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &min_bitrate_options,
&capturer));
cricket::VideoFormat capture_format_hd =
capturer.GetSupportedFormats()->front();
EXPECT_EQ(1280, capture_format_hd.width);
EXPECT_EQ(720, capture_format_hd.height);
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(capture_format_hd));
EXPECT_TRUE(channel_->SetSend(true));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
// Verify non-screencast settings.
webrtc::VideoEncoderConfig encoder_config = send_stream->GetEncoderConfig();
EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kRealtimeVideo,
encoder_config.content_type);
EXPECT_EQ(codec.width, encoder_config.streams.front().width);
EXPECT_EQ(codec.height, encoder_config.streams.front().height);
EXPECT_EQ(0, encoder_config.min_transmit_bitrate_bps)
<< "Non-screenshare shouldn't use min-transmit bitrate.";
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
// Removing a capturer triggers a black frame to be sent.
EXPECT_EQ(2, send_stream->GetNumberOfSwappedFrames());
VideoOptions screencast_options;
screencast_options.is_screencast = rtc::Optional<bool>(true);
EXPECT_TRUE(
channel_->SetVideoSend(last_ssrc_, true, &screencast_options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
// Send stream not recreated after option change.
ASSERT_EQ(send_stream, fake_call_->GetVideoSendStreams().front());
EXPECT_EQ(3, send_stream->GetNumberOfSwappedFrames());
// Verify screencast settings.
encoder_config = send_stream->GetEncoderConfig();
EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kScreen,
encoder_config.content_type);
EXPECT_EQ(kScreenshareMinBitrateKbps * 1000,
encoder_config.min_transmit_bitrate_bps);
EXPECT_EQ(capture_format_hd.width, encoder_config.streams.front().width);
EXPECT_EQ(capture_format_hd.height, encoder_config.streams.front().height);
EXPECT_TRUE(encoder_config.streams[0].temporal_layer_thresholds_bps.empty());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test, NoRecreateStreamForScreencast) {
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
ASSERT_TRUE(
channel_->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
EXPECT_TRUE(channel_->SetSend(true));
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_EQ(1, fake_call_->GetNumCreatedSendStreams());
FakeVideoSendStream* stream = fake_call_->GetVideoSendStreams().front();
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig();
EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kRealtimeVideo,
encoder_config.content_type);
EXPECT_EQ(1, stream->GetNumberOfSwappedFrames());
/* Switch to screencast source. We expect a reconfigure of the
* encoder, but no change of the send stream. */
struct VideoOptions video_options;
video_options.is_screencast = rtc::Optional<bool>(true);
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, &video_options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_EQ(1, fake_call_->GetNumCreatedSendStreams());
ASSERT_EQ(stream, fake_call_->GetVideoSendStreams().front());
EXPECT_EQ(2, stream->GetNumberOfSwappedFrames());
encoder_config = stream->GetEncoderConfig();
EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kScreen,
encoder_config.content_type);
/* Switch back. */
video_options.is_screencast = rtc::Optional<bool>(false);
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, &video_options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_EQ(1, fake_call_->GetNumCreatedSendStreams());
ASSERT_EQ(stream, fake_call_->GetVideoSendStreams().front());
EXPECT_EQ(3, stream->GetNumberOfSwappedFrames());
encoder_config = stream->GetEncoderConfig();
EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kRealtimeVideo,
encoder_config.content_type);
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test,
ConferenceModeScreencastConfiguresTemporalLayer) {
static const int kConferenceScreencastTemporalBitrateBps =
ScreenshareLayerConfig::GetDefault().tl0_bitrate_kbps * 1000;
send_parameters_.conference_mode = true;
channel_->SetSendParameters(send_parameters_);
AddSendStream();
VideoOptions options;
options.is_screencast = rtc::Optional<bool>(true);
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
cricket::VideoFormat capture_format_hd =
capturer.GetSupportedFormats()->front();
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(capture_format_hd));
EXPECT_TRUE(channel_->SetSend(true));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
webrtc::VideoEncoderConfig encoder_config = send_stream->GetEncoderConfig();
// Verify screencast settings.
encoder_config = send_stream->GetEncoderConfig();
EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kScreen,
encoder_config.content_type);
ASSERT_EQ(1u, encoder_config.streams.size());
ASSERT_EQ(1u, encoder_config.streams[0].temporal_layer_thresholds_bps.size());
EXPECT_EQ(kConferenceScreencastTemporalBitrateBps,
encoder_config.streams[0].temporal_layer_thresholds_bps[0]);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test, SuspendBelowMinBitrateDisabledByDefault) {
FakeVideoSendStream* stream = AddSendStream();
EXPECT_FALSE(stream->GetConfig().suspend_below_min_bitrate);
}
TEST_F(WebRtcVideoChannel2Test, SetMediaConfigSuspendBelowMinBitrate) {
MediaConfig media_config = MediaConfig();
media_config.video.suspend_below_min_bitrate = true;
channel_.reset(
engine_.CreateChannel(fake_call_.get(), media_config, VideoOptions()));
channel_->SetSendParameters(send_parameters_);
FakeVideoSendStream* stream = AddSendStream();
EXPECT_TRUE(stream->GetConfig().suspend_below_min_bitrate);
media_config.video.suspend_below_min_bitrate = false;
channel_.reset(
engine_.CreateChannel(fake_call_.get(), media_config, VideoOptions()));
channel_->SetSendParameters(send_parameters_);
stream = AddSendStream();
EXPECT_FALSE(stream->GetConfig().suspend_below_min_bitrate);
}
TEST_F(WebRtcVideoChannel2Test, Vp8DenoisingEnabledByDefault) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoCodecVP8 vp8_settings;
ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
EXPECT_TRUE(vp8_settings.denoisingOn);
}
TEST_F(WebRtcVideoChannel2Test, VerifyVp8SpecificSettings) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec720p);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
// Single-stream settings should apply with RTX as well (verifies that we
// check number of regular SSRCs and not StreamParams::ssrcs which contains
// both RTX and regular SSRCs).
FakeVideoSendStream* stream = SetUpSimulcast(false, true);
cricket::FakeVideoCapturer capturer;
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
webrtc::VideoCodecVP8 vp8_settings;
ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
EXPECT_TRUE(vp8_settings.denoisingOn)
<< "VP8 denoising should be on by default.";
stream = SetDenoisingOption(last_ssrc_, &capturer, false);
ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
EXPECT_FALSE(vp8_settings.denoisingOn);
EXPECT_TRUE(vp8_settings.automaticResizeOn);
EXPECT_TRUE(vp8_settings.frameDroppingOn);
stream = SetDenoisingOption(last_ssrc_, &capturer, true);
ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
EXPECT_TRUE(vp8_settings.denoisingOn);
EXPECT_TRUE(vp8_settings.automaticResizeOn);
EXPECT_TRUE(vp8_settings.frameDroppingOn);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
stream = SetUpSimulcast(true, false);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
EXPECT_EQ(3, stream->GetVideoStreams().size());
ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
// Autmatic resize off when using simulcast.
EXPECT_FALSE(vp8_settings.automaticResizeOn);
EXPECT_TRUE(vp8_settings.frameDroppingOn);
// In screen-share mode, denoising is forced off and simulcast disabled.
VideoOptions options;
options.is_screencast = rtc::Optional<bool>(true);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
stream = SetDenoisingOption(last_ssrc_, &capturer, false);
EXPECT_EQ(1, stream->GetVideoStreams().size());
ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
EXPECT_FALSE(vp8_settings.denoisingOn);
// Resizing and frame dropping always off for screen sharing.
EXPECT_FALSE(vp8_settings.automaticResizeOn);
EXPECT_FALSE(vp8_settings.frameDroppingOn);
stream = SetDenoisingOption(last_ssrc_, &capturer, true);
ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
EXPECT_FALSE(vp8_settings.denoisingOn);
EXPECT_FALSE(vp8_settings.automaticResizeOn);
EXPECT_FALSE(vp8_settings.frameDroppingOn);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
// Test that setting the same options doesn't result in the encoder being
// reconfigured.
TEST_F(WebRtcVideoChannel2Test, SetIdenticalOptionsDoesntReconfigureEncoder) {
VideoOptions options;
cricket::FakeVideoCapturer capturer;
FakeVideoSendStream* send_stream = AddSendStream();
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
// Expect 2 reconfigurations at this point, from the initial configuration
// and from the dimensions of the first frame.
EXPECT_EQ(2, send_stream->num_encoder_reconfigurations());
// Set the options one more time and expect no additional reconfigurations.
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
EXPECT_EQ(2, send_stream->num_encoder_reconfigurations());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
class Vp9SettingsTest : public WebRtcVideoChannel2Test {
public:
Vp9SettingsTest() : Vp9SettingsTest("") {}
explicit Vp9SettingsTest(const char* field_trials)
: WebRtcVideoChannel2Test(field_trials) {
encoder_factory_.AddSupportedVideoCodecType(webrtc::kVideoCodecVP9, "VP9");
}
virtual ~Vp9SettingsTest() {}
protected:
void SetUp() override {
engine_.SetExternalEncoderFactory(&encoder_factory_);
WebRtcVideoChannel2Test::SetUp();
}
void TearDown() override {
// Remove references to encoder_factory_ since this will be destroyed
// before channel_ and engine_.
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
}
cricket::FakeWebRtcVideoEncoderFactory encoder_factory_;
};
TEST_F(Vp9SettingsTest, VerifyVp9SpecificSettings) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp9Codec);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = SetUpSimulcast(false, false);
cricket::FakeVideoCapturer capturer;
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
webrtc::VideoCodecVP9 vp9_settings;
ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
EXPECT_FALSE(vp9_settings.denoisingOn)
<< "VP9 denoising should be off by default.";
stream = SetDenoisingOption(last_ssrc_, &capturer, false);
ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
EXPECT_FALSE(vp9_settings.denoisingOn);
// Frame dropping always on for real time video.
EXPECT_TRUE(vp9_settings.frameDroppingOn);
stream = SetDenoisingOption(last_ssrc_, &capturer, true);
ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
EXPECT_TRUE(vp9_settings.denoisingOn);
EXPECT_TRUE(vp9_settings.frameDroppingOn);
// In screen-share mode, denoising is forced off.
VideoOptions options;
options.is_screencast = rtc::Optional<bool>(true);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
stream = SetDenoisingOption(last_ssrc_, &capturer, false);
ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
EXPECT_FALSE(vp9_settings.denoisingOn);
// Frame dropping always off for screen sharing.
EXPECT_FALSE(vp9_settings.frameDroppingOn);
stream = SetDenoisingOption(last_ssrc_, &capturer, false);
ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
EXPECT_FALSE(vp9_settings.denoisingOn);
EXPECT_FALSE(vp9_settings.frameDroppingOn);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
class Vp9SettingsTestWithFieldTrial : public Vp9SettingsTest {
public:
Vp9SettingsTestWithFieldTrial(const char* field_trials)
: Vp9SettingsTest(field_trials) {}
protected:
void VerifySettings(int num_spatial_layers, int num_temporal_layers) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp9Codec);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = SetUpSimulcast(false, false);
cricket::FakeVideoCapturer capturer;
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
webrtc::VideoCodecVP9 vp9_settings;
ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
EXPECT_EQ(num_spatial_layers, vp9_settings.numberOfSpatialLayers);
EXPECT_EQ(num_temporal_layers, vp9_settings.numberOfTemporalLayers);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
};
class Vp9SettingsTestWithNoFlag : public Vp9SettingsTestWithFieldTrial {
public:
Vp9SettingsTestWithNoFlag() : Vp9SettingsTestWithFieldTrial("") {}
};
TEST_F(Vp9SettingsTestWithNoFlag, VerifySettings) {
const int kNumSpatialLayers = 1;
const int kNumTemporalLayers = 1;
VerifySettings(kNumSpatialLayers, kNumTemporalLayers);
}
class Vp9SettingsTestWithInvalidFlag : public Vp9SettingsTestWithFieldTrial {
public:
Vp9SettingsTestWithInvalidFlag()
: Vp9SettingsTestWithFieldTrial("WebRTC-SupportVP9SVC/Default/") {}
};
TEST_F(Vp9SettingsTestWithInvalidFlag, VerifySettings) {
const int kNumSpatialLayers = 1;
const int kNumTemporalLayers = 1;
VerifySettings(kNumSpatialLayers, kNumTemporalLayers);
}
class Vp9SettingsTestWith2SL3TLFlag : public Vp9SettingsTestWithFieldTrial {
public:
Vp9SettingsTestWith2SL3TLFlag()
: Vp9SettingsTestWithFieldTrial(
"WebRTC-SupportVP9SVC/EnabledByFlag_2SL3TL/") {}
};
TEST_F(Vp9SettingsTestWith2SL3TLFlag, VerifySettings) {
const int kNumSpatialLayers = 2;
const int kNumTemporalLayers = 3;
VerifySettings(kNumSpatialLayers, kNumTemporalLayers);
}
TEST_F(WebRtcVideoChannel2Test, AdaptsOnOveruse) {
TestCpuAdaptation(true, false);
}
TEST_F(WebRtcVideoChannel2Test, DoesNotAdaptOnOveruseWhenDisabled) {
TestCpuAdaptation(false, false);
}
TEST_F(WebRtcVideoChannel2Test, DoesNotAdaptOnOveruseWhenScreensharing) {
TestCpuAdaptation(true, true);
}
TEST_F(WebRtcVideoChannel2Test, AdaptsOnOveruseAndChangeResolution) {
cricket::VideoCodec codec = kVp8Codec720p;
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
MediaConfig media_config = MediaConfig();
channel_.reset(
engine_.CreateChannel(fake_call_.get(), media_config, VideoOptions()));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
cricket::FakeVideoCapturer capturer;
ASSERT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
ASSERT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
ASSERT_TRUE(channel_->SetSend(true));
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
webrtc::LoadObserver* overuse_callback =
send_stream->GetConfig().overuse_callback;
ASSERT_TRUE(overuse_callback != NULL);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720, cricket::FOURCC_I420));
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1280, send_stream->GetLastWidth());
EXPECT_EQ(720, send_stream->GetLastHeight());
// Trigger overuse.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720, cricket::FOURCC_I420));
EXPECT_EQ(2, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1280 * 3 / 4, send_stream->GetLastWidth());
EXPECT_EQ(720 * 3 / 4, send_stream->GetLastHeight());
// Trigger overuse again.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720, cricket::FOURCC_I420));
EXPECT_EQ(3, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1280 * 2 / 4, send_stream->GetLastWidth());
EXPECT_EQ(720 * 2 / 4, send_stream->GetLastHeight());
// Trigger overuse again. This should not decrease the resolution since we
// should only adapt the resolution down max two steps.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720, cricket::FOURCC_I420));
EXPECT_EQ(4, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1280 * 2 / 4, send_stream->GetLastWidth());
EXPECT_EQ(720 * 2 / 4, send_stream->GetLastHeight());
// Change input resolution.
EXPECT_TRUE(capturer.CaptureCustomFrame(1284, 724, cricket::FOURCC_I420));
EXPECT_EQ(5, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1284 / 2, send_stream->GetLastWidth());
EXPECT_EQ(724 / 2, send_stream->GetLastHeight());
// Trigger underuse which should go back up in resolution.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kUnderuse);
EXPECT_TRUE(capturer.CaptureCustomFrame(1284, 724, cricket::FOURCC_I420));
EXPECT_EQ(6, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1284 * 3 / 4, send_stream->GetLastWidth());
EXPECT_EQ(724 * 3 / 4, send_stream->GetLastHeight());
// Trigger underuse which should go back up in resolution.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kUnderuse);
EXPECT_TRUE(capturer.CaptureCustomFrame(1284, 724, cricket::FOURCC_I420));
EXPECT_EQ(7, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1284, send_stream->GetLastWidth());
EXPECT_EQ(724, send_stream->GetLastHeight());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test, PreviousAdaptationDoesNotApplyToScreenshare) {
cricket::VideoCodec codec = kVp8Codec720p;
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
MediaConfig media_config = MediaConfig();
channel_.reset(
engine_.CreateChannel(fake_call_.get(), media_config, VideoOptions()));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
cricket::FakeVideoCapturer capturer;
ASSERT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
ASSERT_TRUE(channel_->SetSend(true));
cricket::VideoOptions camera_options;
channel_->SetVideoSend(last_ssrc_, true /* enable */, &camera_options,
&capturer);
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
webrtc::LoadObserver* overuse_callback =
send_stream->GetConfig().overuse_callback;
ASSERT_TRUE(overuse_callback != NULL);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720, cricket::FOURCC_I420));
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1280, send_stream->GetLastWidth());
EXPECT_EQ(720, send_stream->GetLastHeight());
// Trigger overuse.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720, cricket::FOURCC_I420));
EXPECT_EQ(2, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1280 * 3 / 4, send_stream->GetLastWidth());
EXPECT_EQ(720 * 3 / 4, send_stream->GetLastHeight());
// Switch to screen share. Expect no CPU adaptation.
cricket::FakeVideoCapturer screen_share(true);
ASSERT_EQ(cricket::CS_RUNNING,
screen_share.Start(screen_share.GetSupportedFormats()->front()));
cricket::VideoOptions screenshare_options;
screenshare_options.is_screencast = rtc::Optional<bool>(true);
channel_->SetVideoSend(last_ssrc_, true /* enable */, &screenshare_options,
&screen_share);
EXPECT_TRUE(screen_share.CaptureCustomFrame(1284, 724, cricket::FOURCC_I420));
EXPECT_EQ(3, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1284, send_stream->GetLastWidth());
EXPECT_EQ(724, send_stream->GetLastHeight());
// Switch back to the normal capturer. Expect the frame to be CPU adapted.
channel_->SetVideoSend(last_ssrc_, true /* enable */, &camera_options,
&capturer);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720, cricket::FOURCC_I420));
EXPECT_EQ(4, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1280 * 3 / 4, send_stream->GetLastWidth());
EXPECT_EQ(720 * 3 / 4, send_stream->GetLastHeight());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
void WebRtcVideoChannel2Test::TestCpuAdaptation(bool enable_overuse,
bool is_screenshare) {
cricket::VideoCodec codec = kVp8Codec720p;
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
MediaConfig media_config = MediaConfig();
if (!enable_overuse) {
media_config.video.enable_cpu_overuse_detection = false;
}
channel_.reset(
engine_.CreateChannel(fake_call_.get(), media_config, VideoOptions()));
EXPECT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
cricket::FakeVideoCapturer capturer;
VideoOptions options;
options.is_screencast = rtc::Optional<bool>(is_screenshare);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(channel_->SetSend(true));
// Trigger overuse.
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
webrtc::LoadObserver* overuse_callback =
send_stream->GetConfig().overuse_callback;
if (!enable_overuse) {
ASSERT_TRUE(overuse_callback == NULL);
EXPECT_TRUE(capturer.CaptureFrame());
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(codec.width, send_stream->GetLastWidth());
EXPECT_EQ(codec.height, send_stream->GetLastHeight());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
return;
}
ASSERT_TRUE(overuse_callback != NULL);
EXPECT_TRUE(capturer.CaptureFrame());
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
EXPECT_TRUE(capturer.CaptureFrame());
EXPECT_EQ(2, send_stream->GetNumberOfSwappedFrames());
if (is_screenshare) {
// Do not adapt screen share.
EXPECT_EQ(codec.width, send_stream->GetLastWidth());
EXPECT_EQ(codec.height, send_stream->GetLastHeight());
} else {
EXPECT_LT(send_stream->GetLastWidth(), codec.width);
EXPECT_LT(send_stream->GetLastHeight(), codec.height);
}
// Trigger underuse which should go back to normal resolution.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kUnderuse);
EXPECT_TRUE(capturer.CaptureFrame());
EXPECT_EQ(3, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(codec.width, send_stream->GetLastWidth());
EXPECT_EQ(codec.height, send_stream->GetLastHeight());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test, EstimatesNtpStartTimeCorrectly) {
// Start at last timestamp to verify that wraparounds are estimated correctly.
static const uint32_t kInitialTimestamp = 0xFFFFFFFFu;
static const int64_t kInitialNtpTimeMs = 1247891230;
static const int kFrameOffsetMs = 20;
EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
FakeVideoReceiveStream* stream = AddRecvStream();
cricket::FakeVideoRenderer renderer;
EXPECT_TRUE(channel_->SetSink(last_ssrc_, &renderer));
webrtc::VideoFrame video_frame;
CreateBlackFrame(&video_frame, 4, 4);
video_frame.set_timestamp(kInitialTimestamp);
// Initial NTP time is not available on the first frame, but should still be
// able to be estimated.
stream->InjectFrame(video_frame);
EXPECT_EQ(1, renderer.num_rendered_frames());
// This timestamp is kInitialTimestamp (-1) + kFrameOffsetMs * 90, which
// triggers a constant-overflow warning, hence we're calculating it explicitly
// here.
video_frame.set_timestamp(kFrameOffsetMs * 90 - 1);
video_frame.set_ntp_time_ms(kInitialNtpTimeMs + kFrameOffsetMs);
stream->InjectFrame(video_frame);
EXPECT_EQ(2, renderer.num_rendered_frames());
// Verify that NTP time has been correctly deduced.
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1u, info.receivers.size());
EXPECT_EQ(kInitialNtpTimeMs, info.receivers[0].capture_start_ntp_time_ms);
}
TEST_F(WebRtcVideoChannel2Test, SetDefaultSendCodecs) {
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
VideoCodec codec;
EXPECT_TRUE(channel_->GetSendCodec(&codec));
EXPECT_TRUE(codec.Matches(engine_.codecs()[0]));
// Using a RTX setup to verify that the default RTX payload type is good.
const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
FakeVideoSendStream* stream = AddSendStream(
cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs));
webrtc::VideoSendStream::Config config = stream->GetConfig();
// Make sure NACK and FEC are enabled on the correct payload types.
EXPECT_EQ(1000, config.rtp.nack.rtp_history_ms);
EXPECT_EQ(default_ulpfec_codec_.id, config.rtp.fec.ulpfec_payload_type);
EXPECT_EQ(default_red_codec_.id, config.rtp.fec.red_payload_type);
EXPECT_EQ(1u, config.rtp.rtx.ssrcs.size());
EXPECT_EQ(kRtxSsrcs1[0], config.rtp.rtx.ssrcs[0]);
VerifySendStreamHasRtxTypes(config, default_apt_rtx_types_);
// TODO(juberti): Check RTCP, PLI, TMMBR.
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithoutFec) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Config config = stream->GetConfig();
EXPECT_EQ(-1, config.rtp.fec.ulpfec_payload_type);
EXPECT_EQ(-1, config.rtp.fec.red_payload_type);
}
TEST_F(WebRtcVideoChannel2Test,
SetSendCodecRejectsRtxWithoutAssociatedPayloadType) {
cricket::VideoSendParameters parameters;
cricket::VideoCodec rtx_codec(96, "rtx", 0, 0, 0);
parameters.codecs.push_back(rtx_codec);
EXPECT_FALSE(channel_->SetSendParameters(parameters))
<< "RTX codec without associated payload type should be rejected.";
}
TEST_F(WebRtcVideoChannel2Test,
SetSendCodecRejectsRtxWithoutMatchingVideoCodec) {
cricket::VideoSendParameters parameters;
cricket::VideoCodec rtx_codec =
cricket::VideoCodec::CreateRtxCodec(96, kVp8Codec.id);
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(rtx_codec);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
cricket::VideoCodec rtx_codec2 =
cricket::VideoCodec::CreateRtxCodec(96, kVp8Codec.id + 1);
parameters.codecs.pop_back();
parameters.codecs.push_back(rtx_codec2);
EXPECT_FALSE(channel_->SetSendParameters(parameters))
<< "RTX without matching video codec should be rejected.";
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithoutFecDisablesFec) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kUlpfecCodec);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Config config = stream->GetConfig();
EXPECT_EQ(kUlpfecCodec.id, config.rtp.fec.ulpfec_payload_type);
parameters.codecs.pop_back();
ASSERT_TRUE(channel_->SetSendParameters(parameters));
stream = fake_call_->GetVideoSendStreams()[0];
ASSERT_TRUE(stream != NULL);
config = stream->GetConfig();
EXPECT_EQ(-1, config.rtp.fec.ulpfec_payload_type)
<< "SetSendCodec without FEC should disable current FEC.";
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsChangesExistingStreams) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec720p);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
channel_->SetSend(true);
FakeVideoSendStream* stream = AddSendStream();
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(capturer.CaptureFrame());
std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
EXPECT_EQ(kVp8Codec720p.width, streams[0].width);
EXPECT_EQ(kVp8Codec720p.height, streams[0].height);
parameters.codecs.clear();
parameters.codecs.push_back(kVp8Codec360p);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
streams = fake_call_->GetVideoSendStreams()[0]->GetVideoStreams();
EXPECT_EQ(kVp8Codec360p.width, streams[0].width);
EXPECT_EQ(kVp8Codec360p.height, streams[0].height);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithBitrates) {
SetSendCodecsShouldWorkForBitrates("100", 100000, "150", 150000, "200",
200000);
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithHighMaxBitrate) {
SetSendCodecsShouldWorkForBitrates("", 0, "", -1, "10000", 10000000);
std::vector<webrtc::VideoStream> streams = AddSendStream()->GetVideoStreams();
ASSERT_EQ(1u, streams.size());
EXPECT_EQ(10000000, streams[0].max_bitrate_bps);
}
TEST_F(WebRtcVideoChannel2Test,
SetSendCodecsWithoutBitratesUsesCorrectDefaults) {
SetSendCodecsShouldWorkForBitrates(
"", 0, "", -1, "", -1);
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsCapsMinAndStartBitrate) {
SetSendCodecsShouldWorkForBitrates("-1", 0, "-100", -1, "", -1);
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsRejectsMaxLessThanMinBitrate) {
send_parameters_.codecs[0].params[kCodecParamMinBitrate] = "300";
send_parameters_.codecs[0].params[kCodecParamMaxBitrate] = "200";
EXPECT_FALSE(channel_->SetSendParameters(send_parameters_));
}
// Test that when both the codec-specific bitrate params and max_bandwidth_bps
// are present in the same send parameters, the settings are combined correctly.
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithBitratesAndMaxSendBandwidth) {
send_parameters_.codecs[0].params[kCodecParamMinBitrate] = "100";
send_parameters_.codecs[0].params[kCodecParamStartBitrate] = "200";
send_parameters_.codecs[0].params[kCodecParamMaxBitrate] = "300";
send_parameters_.max_bandwidth_bps = 400000;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(100000, fake_call_->GetConfig().bitrate_config.min_bitrate_bps);
EXPECT_EQ(200000, fake_call_->GetConfig().bitrate_config.start_bitrate_bps);
// We expect max_bandwidth_bps to take priority, if set.
EXPECT_EQ(400000, fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
// Decrease max_bandwidth_bps.
send_parameters_.max_bandwidth_bps = 350000;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(100000, fake_call_->GetConfig().bitrate_config.min_bitrate_bps);
// Since the codec isn't changing, start_bitrate_bps should be -1.
EXPECT_EQ(-1, fake_call_->GetConfig().bitrate_config.start_bitrate_bps);
EXPECT_EQ(350000, fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
// Now try again with the values flipped around.
send_parameters_.codecs[0].params[kCodecParamMaxBitrate] = "400";
send_parameters_.max_bandwidth_bps = 300000;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(100000, fake_call_->GetConfig().bitrate_config.min_bitrate_bps);
EXPECT_EQ(200000, fake_call_->GetConfig().bitrate_config.start_bitrate_bps);
EXPECT_EQ(300000, fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
// If we change the codec max, max_bandwidth_bps should still apply.
send_parameters_.codecs[0].params[kCodecParamMaxBitrate] = "350";
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(100000, fake_call_->GetConfig().bitrate_config.min_bitrate_bps);
EXPECT_EQ(200000, fake_call_->GetConfig().bitrate_config.start_bitrate_bps);
EXPECT_EQ(300000, fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
}
TEST_F(WebRtcVideoChannel2Test,
SetMaxSendBandwidthShouldPreserveOtherBitrates) {
SetSendCodecsShouldWorkForBitrates("100", 100000, "150", 150000, "200",
200000);
send_parameters_.max_bandwidth_bps = 300000;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(100000, fake_call_->GetConfig().bitrate_config.min_bitrate_bps)
<< "Setting max bitrate should keep previous min bitrate.";
EXPECT_EQ(-1, fake_call_->GetConfig().bitrate_config.start_bitrate_bps)
<< "Setting max bitrate should not reset start bitrate.";
EXPECT_EQ(300000, fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
}
TEST_F(WebRtcVideoChannel2Test, SetMaxSendBandwidthShouldBeRemovable) {
send_parameters_.max_bandwidth_bps = 300000;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(300000, fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
// <= 0 means disable (infinite) max bitrate.
send_parameters_.max_bandwidth_bps = 0;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(-1, fake_call_->GetConfig().bitrate_config.max_bitrate_bps)
<< "Setting zero max bitrate did not reset start bitrate.";
}
TEST_F(WebRtcVideoChannel2Test, SetMaxSendBitrateCanIncreaseSenderBitrate) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec720p);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
channel_->SetSend(true);
FakeVideoSendStream* stream = AddSendStream();
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
int initial_max_bitrate_bps = streams[0].max_bitrate_bps;
EXPECT_GT(initial_max_bitrate_bps, 0);
parameters.max_bandwidth_bps = initial_max_bitrate_bps * 2;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
// Insert a frame to update the encoder config.
EXPECT_TRUE(capturer.CaptureFrame());
streams = stream->GetVideoStreams();
EXPECT_EQ(initial_max_bitrate_bps * 2, streams[0].max_bitrate_bps);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test,
SetMaxSendBitrateCanIncreaseSimulcastSenderBitrate) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec720p);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
channel_->SetSend(true);
FakeVideoSendStream* stream = AddSendStream(
cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs3)));
// Send a frame to make sure this scales up to >1 stream (simulcast).
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel_->SetVideoSend(kSsrcs3[0], true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(capturer.CaptureFrame());
std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
ASSERT_GT(streams.size(), 1u)
<< "Without simulcast this test doesn't make sense.";
int initial_max_bitrate_bps = GetTotalMaxBitrateBps(streams);
EXPECT_GT(initial_max_bitrate_bps, 0);
parameters.max_bandwidth_bps = initial_max_bitrate_bps * 2;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
// Insert a frame to update the encoder config.
EXPECT_TRUE(capturer.CaptureFrame());
streams = stream->GetVideoStreams();
int increased_max_bitrate_bps = GetTotalMaxBitrateBps(streams);
EXPECT_EQ(initial_max_bitrate_bps * 2, increased_max_bitrate_bps);
EXPECT_TRUE(channel_->SetVideoSend(kSsrcs3[0], true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithMaxQuantization) {
static const char* kMaxQuantization = "21";
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs[0].params[kCodecParamMaxQuantization] = kMaxQuantization;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
EXPECT_EQ(static_cast<unsigned int>(atoi(kMaxQuantization)),
AddSendStream()->GetVideoStreams().back().max_qp);
VideoCodec codec;
EXPECT_TRUE(channel_->GetSendCodec(&codec));
EXPECT_EQ(kMaxQuantization, codec.params[kCodecParamMaxQuantization]);
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsRejectBadDimensions) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs[0].width = 0;
EXPECT_FALSE(channel_->SetSendParameters(parameters))
<< "Codec set though codec width is zero.";
parameters.codecs[0].width = kVp8Codec.width;
parameters.codecs[0].height = 0;
EXPECT_FALSE(channel_->SetSendParameters(parameters))
<< "Codec set though codec height is zero.";
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsRejectBadPayloadTypes) {
// TODO(pbos): Should we only allow the dynamic range?
static const int kIncorrectPayloads[] = {-2, -1, 128, 129};
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
for (size_t i = 0; i < arraysize(kIncorrectPayloads); ++i) {
parameters.codecs[0].id = kIncorrectPayloads[i];
EXPECT_FALSE(channel_->SetSendParameters(parameters))
<< "Bad payload type '" << kIncorrectPayloads[i] << "' accepted.";
}
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsAcceptAllValidPayloadTypes) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
for (int payload_type = 0; payload_type <= 127; ++payload_type) {
parameters.codecs[0].id = payload_type;
EXPECT_TRUE(channel_->SetSendParameters(parameters))
<< "Payload type '" << payload_type << "' rejected.";
}
}
// Test that setting the a different set of codecs but with an identical front
// codec doesn't result in the stream being recreated.
// This may happen when a subsequent negotiation includes fewer codecs, as a
// result of one of the codecs being rejected.
TEST_F(WebRtcVideoChannel2Test,
SetSendCodecsIdenticalFirstCodecDoesntRecreateStream) {
cricket::VideoSendParameters parameters1;
parameters1.codecs.push_back(kVp8Codec);
parameters1.codecs.push_back(kVp9Codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters1));
AddSendStream();
EXPECT_EQ(1, fake_call_->GetNumCreatedSendStreams());
cricket::VideoSendParameters parameters2;
parameters2.codecs.push_back(kVp8Codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters2));
EXPECT_EQ(1, fake_call_->GetNumCreatedSendStreams());
}
TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsWithOnlyVp8) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
}
// Test that we set our inbound RTX codecs properly.
TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsWithRtx) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
cricket::VideoCodec rtx_codec(96, "rtx", 0, 0, 0);
parameters.codecs.push_back(rtx_codec);
EXPECT_FALSE(channel_->SetRecvParameters(parameters))
<< "RTX codec without associated payload should be rejected.";
parameters.codecs[1].SetParam("apt", kVp8Codec.id + 1);
EXPECT_FALSE(channel_->SetRecvParameters(parameters))
<< "RTX codec with invalid associated payload type should be rejected.";
parameters.codecs[1].SetParam("apt", kVp8Codec.id);
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
cricket::VideoCodec rtx_codec2(97, "rtx", 0, 0, 0);
rtx_codec2.SetParam("apt", rtx_codec.id);
parameters.codecs.push_back(rtx_codec2);
EXPECT_FALSE(channel_->SetRecvParameters(parameters)) <<
"RTX codec with another RTX as associated payload type should be "
"rejected.";
}
TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsDifferentPayloadType) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs[0].id = 99;
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsAcceptDefaultCodecs) {
cricket::VideoRecvParameters parameters;
parameters.codecs = engine_.codecs();
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
FakeVideoReceiveStream* stream = AddRecvStream();
const webrtc::VideoReceiveStream::Config& config = stream->GetConfig();
EXPECT_EQ(engine_.codecs()[0].name, config.decoders[0].payload_name);
EXPECT_EQ(engine_.codecs()[0].id, config.decoders[0].payload_type);
}
TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsRejectUnsupportedCodec) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(VideoCodec(101, "WTF3", 640, 400, 30));
EXPECT_FALSE(channel_->SetRecvParameters(parameters));
}
// TODO(pbos): Enable VP9 through external codec support
TEST_F(WebRtcVideoChannel2Test,
DISABLED_SetRecvCodecsAcceptsMultipleVideoCodecs) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kVp9Codec);
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannel2Test,
DISABLED_SetRecvCodecsSetsFecForAllVideoCodecs) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kVp9Codec);
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
FAIL(); // TODO(pbos): Verify that the FEC parameters are set for all codecs.
}
TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsWithoutFecDisablesFec) {
cricket::VideoSendParameters send_parameters;
send_parameters.codecs.push_back(kVp8Codec);
send_parameters.codecs.push_back(kRedCodec);
send_parameters.codecs.push_back(kUlpfecCodec);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters));
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_EQ(kUlpfecCodec.id, stream->GetConfig().rtp.fec.ulpfec_payload_type);
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(kVp8Codec);
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
ASSERT_TRUE(stream != NULL);
EXPECT_EQ(-1, stream->GetConfig().rtp.fec.ulpfec_payload_type)
<< "SetSendCodec without FEC should disable current FEC.";
}
TEST_F(WebRtcVideoChannel2Test, SetSendParamsWithoutFecDisablesReceivingFec) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_EQ(kUlpfecCodec.id, stream->GetConfig().rtp.fec.ulpfec_payload_type);
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(kVp8Codec);
recv_parameters.codecs.push_back(kRedCodec);
recv_parameters.codecs.push_back(kUlpfecCodec);
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
ASSERT_TRUE(stream != NULL);
EXPECT_EQ(kUlpfecCodec.id, stream->GetConfig().rtp.fec.ulpfec_payload_type)
<< "FEC should be enabled on the recieve stream.";
cricket::VideoSendParameters send_parameters;
send_parameters.codecs.push_back(kVp8Codec);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(-1, stream->GetConfig().rtp.fec.ulpfec_payload_type)
<< "FEC should have been disabled when we know the other side won't do "
"FEC.";
send_parameters.codecs.push_back(kRedCodec);
send_parameters.codecs.push_back(kUlpfecCodec);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(kUlpfecCodec.id, stream->GetConfig().rtp.fec.ulpfec_payload_type)
<< "FEC should be enabled on the recieve stream.";
}
TEST_F(WebRtcVideoChannel2Test, SetSendCodecsRejectDuplicateFecPayloads) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kRedCodec);
parameters.codecs[1].id = parameters.codecs[0].id;
EXPECT_FALSE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsRejectDuplicateCodecPayloads) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kVp9Codec);
parameters.codecs[1].id = parameters.codecs[0].id;
EXPECT_FALSE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannel2Test,
SetRecvCodecsAcceptSameCodecOnMultiplePayloadTypes) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kVp8Codec);
parameters.codecs[1].id += 1;
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
}
// Test that setting the same codecs but with a different order
// doesn't result in the stream being recreated.
TEST_F(WebRtcVideoChannel2Test,
SetRecvCodecsDifferentOrderDoesntRecreateStream) {
cricket::VideoRecvParameters parameters1;
parameters1.codecs.push_back(kVp8Codec);
parameters1.codecs.push_back(kRedCodec);
EXPECT_TRUE(channel_->SetRecvParameters(parameters1));
AddRecvStream(cricket::StreamParams::CreateLegacy(123));
EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
cricket::VideoRecvParameters parameters2;
parameters2.codecs.push_back(kRedCodec);
parameters2.codecs.push_back(kVp8Codec);
EXPECT_TRUE(channel_->SetRecvParameters(parameters2));
EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
}
TEST_F(WebRtcVideoChannel2Test, SendStreamNotSendingByDefault) {
EXPECT_FALSE(AddSendStream()->IsSending());
}
TEST_F(WebRtcVideoChannel2Test, ReceiveStreamReceivingByDefault) {
EXPECT_TRUE(AddRecvStream()->IsReceiving());
}
TEST_F(WebRtcVideoChannel2Test, SetSend) {
FakeVideoSendStream* stream = AddSendStream();
EXPECT_FALSE(stream->IsSending());
// false->true
EXPECT_TRUE(channel_->SetSend(true));
EXPECT_TRUE(stream->IsSending());
// true->true
EXPECT_TRUE(channel_->SetSend(true));
EXPECT_TRUE(stream->IsSending());
// true->false
EXPECT_TRUE(channel_->SetSend(false));
EXPECT_FALSE(stream->IsSending());
// false->false
EXPECT_TRUE(channel_->SetSend(false));
EXPECT_FALSE(stream->IsSending());
EXPECT_TRUE(channel_->SetSend(true));
FakeVideoSendStream* new_stream = AddSendStream();
EXPECT_TRUE(new_stream->IsSending())
<< "Send stream created after SetSend(true) not sending initially.";
}
// This test verifies DSCP settings are properly applied on video media channel.
TEST_F(WebRtcVideoChannel2Test, TestSetDscpOptions) {
std::unique_ptr<cricket::FakeNetworkInterface> network_interface(
new cricket::FakeNetworkInterface);
MediaConfig config;
std::unique_ptr<VideoMediaChannel> channel;
channel.reset(engine_.CreateChannel(call_.get(), config, VideoOptions()));
channel->SetInterface(network_interface.get());
// Default value when DSCP is disabled should be DSCP_DEFAULT.
EXPECT_EQ(rtc::DSCP_DEFAULT, network_interface->dscp());
config.enable_dscp = true;
channel.reset(engine_.CreateChannel(call_.get(), config, VideoOptions()));
channel->SetInterface(network_interface.get());
EXPECT_EQ(rtc::DSCP_AF41, network_interface->dscp());
// Verify that setting the option to false resets the
// DiffServCodePoint.
config.enable_dscp = false;
channel.reset(engine_.CreateChannel(call_.get(), config, VideoOptions()));
channel->SetInterface(network_interface.get());
EXPECT_EQ(rtc::DSCP_DEFAULT, network_interface->dscp());
}
// This test verifies that the RTCP reduced size mode is properly applied to
// send video streams.
TEST_F(WebRtcVideoChannel2Test, TestSetSendRtcpReducedSize) {
// Create stream, expecting that default mode is "compound".
FakeVideoSendStream* stream1 = AddSendStream();
EXPECT_EQ(webrtc::RtcpMode::kCompound, stream1->GetConfig().rtp.rtcp_mode);
// Now enable reduced size mode.
send_parameters_.rtcp.reduced_size = true;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
stream1 = fake_call_->GetVideoSendStreams()[0];
EXPECT_EQ(webrtc::RtcpMode::kReducedSize, stream1->GetConfig().rtp.rtcp_mode);
// Create a new stream and ensure it picks up the reduced size mode.
FakeVideoSendStream* stream2 = AddSendStream();
EXPECT_EQ(webrtc::RtcpMode::kReducedSize, stream2->GetConfig().rtp.rtcp_mode);
}
// This test verifies that the RTCP reduced size mode is properly applied to
// receive video streams.
TEST_F(WebRtcVideoChannel2Test, TestSetRecvRtcpReducedSize) {
// Create stream, expecting that default mode is "compound".
FakeVideoReceiveStream* stream1 = AddRecvStream();
EXPECT_EQ(webrtc::RtcpMode::kCompound, stream1->GetConfig().rtp.rtcp_mode);
// Now enable reduced size mode.
// TODO(deadbeef): Once "recv_parameters" becomes "receiver_parameters",
// the reduced_size flag should come from that.
send_parameters_.rtcp.reduced_size = true;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
stream1 = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(webrtc::RtcpMode::kReducedSize, stream1->GetConfig().rtp.rtcp_mode);
// Create a new stream and ensure it picks up the reduced size mode.
FakeVideoReceiveStream* stream2 = AddRecvStream();
EXPECT_EQ(webrtc::RtcpMode::kReducedSize, stream2->GetConfig().rtp.rtcp_mode);
}
TEST_F(WebRtcVideoChannel2Test, OnReadyToSendSignalsNetworkState) {
EXPECT_EQ(webrtc::kNetworkUp,
fake_call_->GetNetworkState(webrtc::MediaType::VIDEO));
EXPECT_EQ(webrtc::kNetworkUp,
fake_call_->GetNetworkState(webrtc::MediaType::AUDIO));
channel_->OnReadyToSend(false);
EXPECT_EQ(webrtc::kNetworkDown,
fake_call_->GetNetworkState(webrtc::MediaType::VIDEO));
EXPECT_EQ(webrtc::kNetworkUp,
fake_call_->GetNetworkState(webrtc::MediaType::AUDIO));
channel_->OnReadyToSend(true);
EXPECT_EQ(webrtc::kNetworkUp,
fake_call_->GetNetworkState(webrtc::MediaType::VIDEO));
EXPECT_EQ(webrtc::kNetworkUp,
fake_call_->GetNetworkState(webrtc::MediaType::AUDIO));
}
TEST_F(WebRtcVideoChannel2Test, GetStatsReportsSentCodecName) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ(kVp8Codec.name, info.senders[0].codec_name);
}
TEST_F(WebRtcVideoChannel2Test, GetStatsReportsEncoderImplementationName) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.encoder_implementation_name = "encoder_implementation_name";
stream->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ(stats.encoder_implementation_name,
info.senders[0].encoder_implementation_name);
}
TEST_F(WebRtcVideoChannel2Test, GetStatsReportsCpuOveruseMetrics) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.avg_encode_time_ms = 13;
stats.encode_usage_percent = 42;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ(stats.avg_encode_time_ms, info.senders[0].avg_encode_ms);
EXPECT_EQ(stats.encode_usage_percent, info.senders[0].encode_usage_percent);
}
TEST_F(WebRtcVideoChannel2Test, GetStatsReportsUpperResolution) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.substreams[17].width = 123;
stats.substreams[17].height = 40;
stats.substreams[42].width = 80;
stats.substreams[42].height = 31;
stats.substreams[11].width = 20;
stats.substreams[11].height = 90;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1u, info.senders.size());
EXPECT_EQ(123, info.senders[0].send_frame_width);
EXPECT_EQ(90, info.senders[0].send_frame_height);
}
TEST_F(WebRtcVideoChannel2Test, GetStatsTracksAdaptationStats) {
AddSendStream(cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs3)));
// Capture format VGA.
cricket::FakeVideoCapturer video_capturer_vga;
const std::vector<cricket::VideoFormat>* formats =
video_capturer_vga.GetSupportedFormats();
cricket::VideoFormat capture_format_vga = (*formats)[1];
EXPECT_EQ(cricket::CS_RUNNING, video_capturer_vga.Start(capture_format_vga));
EXPECT_TRUE(
channel_->SetVideoSend(kSsrcs3[0], true, nullptr, &video_capturer_vga));
EXPECT_TRUE(video_capturer_vga.CaptureFrame());
cricket::VideoCodec send_codec(100, "VP8", 640, 480, 30);
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(send_codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
EXPECT_TRUE(channel_->SetSend(true));
// Verify that the CpuOveruseObserver is registered and trigger downgrade.
// Trigger overuse.
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
webrtc::LoadObserver* overuse_callback =
fake_call_->GetVideoSendStreams().front()->GetConfig().overuse_callback;
ASSERT_TRUE(overuse_callback != NULL);
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
// Capture format VGA -> adapt (OnCpuResolutionRequest downgrade) -> VGA/2.
EXPECT_TRUE(video_capturer_vga.CaptureFrame());
cricket::VideoMediaInfo info;
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(1, info.senders[0].adapt_changes);
EXPECT_EQ(WebRtcVideoChannel2::ADAPTREASON_CPU, info.senders[0].adapt_reason);
// Trigger upgrade and verify that we adapt back up to VGA.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kUnderuse);
EXPECT_TRUE(video_capturer_vga.CaptureFrame());
info.Clear();
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(2, info.senders[0].adapt_changes);
EXPECT_EQ(WebRtcVideoChannel2::ADAPTREASON_NONE,
info.senders[0].adapt_reason);
// No capturer (no adapter). Adapt changes from old adapter should be kept.
EXPECT_TRUE(channel_->SetVideoSend(kSsrcs3[0], true, nullptr, nullptr));
info.Clear();
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(2, info.senders[0].adapt_changes);
EXPECT_EQ(WebRtcVideoChannel2::ADAPTREASON_NONE,
info.senders[0].adapt_reason);
// Set new capturer, capture format HD.
cricket::FakeVideoCapturer video_capturer_hd;
cricket::VideoFormat capture_format_hd = (*formats)[0];
EXPECT_EQ(cricket::CS_RUNNING, video_capturer_hd.Start(capture_format_hd));
EXPECT_TRUE(
channel_->SetVideoSend(kSsrcs3[0], true, nullptr, &video_capturer_hd));
EXPECT_TRUE(video_capturer_hd.CaptureFrame());
// Trigger overuse, HD -> adapt (OnCpuResolutionRequest downgrade) -> HD/2.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
EXPECT_TRUE(video_capturer_hd.CaptureFrame());
info.Clear();
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(3, info.senders[0].adapt_changes);
EXPECT_EQ(WebRtcVideoChannel2::ADAPTREASON_CPU, info.senders[0].adapt_reason);
EXPECT_TRUE(channel_->SetVideoSend(kSsrcs3[0], true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test, GetStatsTracksAdaptationAndBandwidthStats) {
AddSendStream(cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs3)));
// Capture format VGA.
cricket::FakeVideoCapturer video_capturer_vga;
const std::vector<cricket::VideoFormat>* formats =
video_capturer_vga.GetSupportedFormats();
cricket::VideoFormat capture_format_vga = (*formats)[1];
EXPECT_EQ(cricket::CS_RUNNING, video_capturer_vga.Start(capture_format_vga));
EXPECT_TRUE(
channel_->SetVideoSend(kSsrcs3[0], true, nullptr, &video_capturer_vga));
EXPECT_TRUE(video_capturer_vga.CaptureFrame());
cricket::VideoCodec send_codec(100, "VP8", 640, 480, 30);
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(send_codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
EXPECT_TRUE(channel_->SetSend(true));
// Verify that the CpuOveruseObserver is registered and trigger downgrade.
// Trigger overuse -> adapt CPU.
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
webrtc::LoadObserver* overuse_callback =
fake_call_->GetVideoSendStreams().front()->GetConfig().overuse_callback;
ASSERT_TRUE(overuse_callback != NULL);
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
EXPECT_TRUE(video_capturer_vga.CaptureFrame());
cricket::VideoMediaInfo info;
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(WebRtcVideoChannel2::ADAPTREASON_CPU, info.senders[0].adapt_reason);
// Set bandwidth limitation stats for the stream -> adapt CPU + BW.
webrtc::VideoSendStream::Stats stats;
stats.bw_limited_resolution = true;
fake_call_->GetVideoSendStreams().front()->SetStats(stats);
info.Clear();
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(WebRtcVideoChannel2::ADAPTREASON_CPU |
WebRtcVideoChannel2::ADAPTREASON_BANDWIDTH,
info.senders[0].adapt_reason);
// Trigger upgrade -> adapt BW.
overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kUnderuse);
EXPECT_TRUE(video_capturer_vga.CaptureFrame());
info.Clear();
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(WebRtcVideoChannel2::ADAPTREASON_BANDWIDTH,
info.senders[0].adapt_reason);
// Reset bandwidth limitation state -> adapt NONE.
stats.bw_limited_resolution = false;
fake_call_->GetVideoSendStreams().front()->SetStats(stats);
info.Clear();
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(WebRtcVideoChannel2::ADAPTREASON_NONE,
info.senders[0].adapt_reason);
EXPECT_TRUE(channel_->SetVideoSend(kSsrcs3[0], true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test,
GetStatsTranslatesBandwidthLimitedResolutionCorrectly) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.bw_limited_resolution = true;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(WebRtcVideoChannel2::ADAPTREASON_BANDWIDTH,
info.senders[0].adapt_reason);
}
TEST_F(WebRtcVideoChannel2Test,
GetStatsTranslatesSendRtcpPacketTypesCorrectly) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.substreams[17].rtcp_packet_type_counts.fir_packets = 2;
stats.substreams[17].rtcp_packet_type_counts.nack_packets = 3;
stats.substreams[17].rtcp_packet_type_counts.pli_packets = 4;
stats.substreams[42].rtcp_packet_type_counts.fir_packets = 5;
stats.substreams[42].rtcp_packet_type_counts.nack_packets = 7;
stats.substreams[42].rtcp_packet_type_counts.pli_packets = 9;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ(7, info.senders[0].firs_rcvd);
EXPECT_EQ(10, info.senders[0].nacks_rcvd);
EXPECT_EQ(13, info.senders[0].plis_rcvd);
}
TEST_F(WebRtcVideoChannel2Test,
GetStatsTranslatesReceiveRtcpPacketTypesCorrectly) {
FakeVideoReceiveStream* stream = AddRecvStream();
webrtc::VideoReceiveStream::Stats stats;
stats.rtcp_packet_type_counts.fir_packets = 2;
stats.rtcp_packet_type_counts.nack_packets = 3;
stats.rtcp_packet_type_counts.pli_packets = 4;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ(stats.rtcp_packet_type_counts.fir_packets,
info.receivers[0].firs_sent);
EXPECT_EQ(stats.rtcp_packet_type_counts.nack_packets,
info.receivers[0].nacks_sent);
EXPECT_EQ(stats.rtcp_packet_type_counts.pli_packets,
info.receivers[0].plis_sent);
}
TEST_F(WebRtcVideoChannel2Test, GetStatsTranslatesDecodeStatsCorrectly) {
FakeVideoReceiveStream* stream = AddRecvStream();
webrtc::VideoReceiveStream::Stats stats;
stats.decoder_implementation_name = "decoder_implementation_name";
stats.decode_ms = 2;
stats.max_decode_ms = 3;
stats.current_delay_ms = 4;
stats.target_delay_ms = 5;
stats.jitter_buffer_ms = 6;
stats.min_playout_delay_ms = 7;
stats.render_delay_ms = 8;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ(stats.decoder_implementation_name,
info.receivers[0].decoder_implementation_name);
EXPECT_EQ(stats.decode_ms, info.receivers[0].decode_ms);
EXPECT_EQ(stats.max_decode_ms, info.receivers[0].max_decode_ms);
EXPECT_EQ(stats.current_delay_ms, info.receivers[0].current_delay_ms);
EXPECT_EQ(stats.target_delay_ms, info.receivers[0].target_delay_ms);
EXPECT_EQ(stats.jitter_buffer_ms, info.receivers[0].jitter_buffer_ms);
EXPECT_EQ(stats.min_playout_delay_ms, info.receivers[0].min_playout_delay_ms);
EXPECT_EQ(stats.render_delay_ms, info.receivers[0].render_delay_ms);
}
TEST_F(WebRtcVideoChannel2Test, GetStatsTranslatesReceivePacketStatsCorrectly) {
FakeVideoReceiveStream* stream = AddRecvStream();
webrtc::VideoReceiveStream::Stats stats;
stats.rtp_stats.transmitted.payload_bytes = 2;
stats.rtp_stats.transmitted.header_bytes = 3;
stats.rtp_stats.transmitted.padding_bytes = 4;
stats.rtp_stats.transmitted.packets = 5;
stats.rtcp_stats.cumulative_lost = 6;
stats.rtcp_stats.fraction_lost = 7;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ(stats.rtp_stats.transmitted.payload_bytes +
stats.rtp_stats.transmitted.header_bytes +
stats.rtp_stats.transmitted.padding_bytes,
info.receivers[0].bytes_rcvd);
EXPECT_EQ(stats.rtp_stats.transmitted.packets,
info.receivers[0].packets_rcvd);
EXPECT_EQ(stats.rtcp_stats.cumulative_lost, info.receivers[0].packets_lost);
EXPECT_EQ(static_cast<float>(stats.rtcp_stats.fraction_lost) / (1 << 8),
info.receivers[0].fraction_lost);
}
TEST_F(WebRtcVideoChannel2Test, TranslatesCallStatsCorrectly) {
AddSendStream();
AddSendStream();
webrtc::Call::Stats stats;
stats.rtt_ms = 123;
fake_call_->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(2u, info.senders.size());
EXPECT_EQ(stats.rtt_ms, info.senders[0].rtt_ms);
EXPECT_EQ(stats.rtt_ms, info.senders[1].rtt_ms);
}
TEST_F(WebRtcVideoChannel2Test, TranslatesSenderBitrateStatsCorrectly) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.target_media_bitrate_bps = 156;
stats.media_bitrate_bps = 123;
stats.substreams[17].total_bitrate_bps = 1;
stats.substreams[17].retransmit_bitrate_bps = 2;
stats.substreams[42].total_bitrate_bps = 3;
stats.substreams[42].retransmit_bitrate_bps = 4;
stream->SetStats(stats);
FakeVideoSendStream* stream2 = AddSendStream();
webrtc::VideoSendStream::Stats stats2;
stats2.target_media_bitrate_bps = 200;
stats2.media_bitrate_bps = 321;
stats2.substreams[13].total_bitrate_bps = 5;
stats2.substreams[13].retransmit_bitrate_bps = 6;
stats2.substreams[21].total_bitrate_bps = 7;
stats2.substreams[21].retransmit_bitrate_bps = 8;
stream2->SetStats(stats2);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(2u, info.senders.size());
// Assuming stream and stream2 corresponds to senders[0] and [1] respectively
// is OK as std::maps are sorted and AddSendStream() gives increasing SSRCs.
EXPECT_EQ(stats.media_bitrate_bps, info.senders[0].nominal_bitrate);
EXPECT_EQ(stats2.media_bitrate_bps, info.senders[1].nominal_bitrate);
EXPECT_EQ(stats.target_media_bitrate_bps + stats2.target_media_bitrate_bps,
info.bw_estimations[0].target_enc_bitrate);
EXPECT_EQ(stats.media_bitrate_bps + stats2.media_bitrate_bps,
info.bw_estimations[0].actual_enc_bitrate);
EXPECT_EQ(1 + 3 + 5 + 7, info.bw_estimations[0].transmit_bitrate)
<< "Bandwidth stats should take all streams into account.";
EXPECT_EQ(2 + 4 + 6 + 8, info.bw_estimations[0].retransmit_bitrate)
<< "Bandwidth stats should take all streams into account.";
}
TEST_F(WebRtcVideoChannel2Test, DefaultReceiveStreamReconfiguresToUseRtx) {
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
ASSERT_EQ(0u, fake_call_->GetVideoReceiveStreams().size());
const size_t kDataLength = 12;
uint8_t data[kDataLength];
memset(data, 0, sizeof(data));
rtc::SetBE32(&data[8], ssrcs[0]);
rtc::CopyOnWriteBuffer packet(data, kDataLength);
rtc::PacketTime packet_time;
channel_->OnPacketReceived(&packet, packet_time);
ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size())
<< "No default receive stream created.";
FakeVideoReceiveStream* recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_TRUE(recv_stream->GetConfig().rtp.rtx.empty())
<< "Default receive stream should not have configured RTX";
EXPECT_TRUE(channel_->AddRecvStream(
cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs)));
ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size())
<< "AddRecvStream should've reconfigured, not added a new receiver.";
recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_FALSE(recv_stream->GetConfig().rtp.rtx.empty());
EXPECT_EQ(recv_stream->GetConfig().decoders.size(),
recv_stream->GetConfig().rtp.rtx.size())
<< "RTX should be mapped for all decoders/payload types.";
for (const auto& kv : recv_stream->GetConfig().rtp.rtx) {
EXPECT_EQ(rtx_ssrcs[0], kv.second.ssrc);
}
}
TEST_F(WebRtcVideoChannel2Test, RejectsAddingStreamsWithMissingSsrcsForRtx) {
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
StreamParams sp =
cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs);
sp.ssrcs = ssrcs; // Without RTXs, this is the important part.
EXPECT_FALSE(channel_->AddSendStream(sp));
EXPECT_FALSE(channel_->AddRecvStream(sp));
}
TEST_F(WebRtcVideoChannel2Test, RejectsAddingStreamsWithOverlappingRtxSsrcs) {
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
StreamParams sp =
cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs);
EXPECT_TRUE(channel_->AddSendStream(sp));
EXPECT_TRUE(channel_->AddRecvStream(sp));
// The RTX SSRC is already used in previous streams, using it should fail.
sp = cricket::StreamParams::CreateLegacy(rtx_ssrcs[0]);
EXPECT_FALSE(channel_->AddSendStream(sp));
EXPECT_FALSE(channel_->AddRecvStream(sp));
// After removing the original stream this should be fine to add (makes sure
// that RTX ssrcs are not forever taken).
EXPECT_TRUE(channel_->RemoveSendStream(ssrcs[0]));
EXPECT_TRUE(channel_->RemoveRecvStream(ssrcs[0]));
EXPECT_TRUE(channel_->AddSendStream(sp));
EXPECT_TRUE(channel_->AddRecvStream(sp));
}
TEST_F(WebRtcVideoChannel2Test,
RejectsAddingStreamsWithOverlappingSimulcastSsrcs) {
static const uint32_t kFirstStreamSsrcs[] = {1, 2, 3};
static const uint32_t kOverlappingStreamSsrcs[] = {4, 3, 5};
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
StreamParams sp =
cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kFirstStreamSsrcs));
EXPECT_TRUE(channel_->AddSendStream(sp));
EXPECT_TRUE(channel_->AddRecvStream(sp));
// One of the SSRCs is already used in previous streams, using it should fail.
sp = cricket::CreateSimStreamParams("cname",
MAKE_VECTOR(kOverlappingStreamSsrcs));
EXPECT_FALSE(channel_->AddSendStream(sp));
EXPECT_FALSE(channel_->AddRecvStream(sp));
// After removing the original stream this should be fine to add (makes sure
// that RTX ssrcs are not forever taken).
EXPECT_TRUE(channel_->RemoveSendStream(kFirstStreamSsrcs[0]));
EXPECT_TRUE(channel_->RemoveRecvStream(kFirstStreamSsrcs[0]));
EXPECT_TRUE(channel_->AddSendStream(sp));
EXPECT_TRUE(channel_->AddRecvStream(sp));
}
TEST_F(WebRtcVideoChannel2Test, ReportsSsrcGroupsInStats) {
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
static const uint32_t kSenderSsrcs[] = {4, 7, 10};
static const uint32_t kSenderRtxSsrcs[] = {5, 8, 11};
StreamParams sender_sp = cricket::CreateSimWithRtxStreamParams(
"cname", MAKE_VECTOR(kSenderSsrcs), MAKE_VECTOR(kSenderRtxSsrcs));
EXPECT_TRUE(channel_->AddSendStream(sender_sp));
static const uint32_t kReceiverSsrcs[] = {3};
static const uint32_t kReceiverRtxSsrcs[] = {2};
StreamParams receiver_sp = cricket::CreateSimWithRtxStreamParams(
"cname", MAKE_VECTOR(kReceiverSsrcs), MAKE_VECTOR(kReceiverRtxSsrcs));
EXPECT_TRUE(channel_->AddRecvStream(receiver_sp));
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1u, info.senders.size());
ASSERT_EQ(1u, info.receivers.size());
EXPECT_NE(sender_sp.ssrc_groups, receiver_sp.ssrc_groups);
EXPECT_EQ(sender_sp.ssrc_groups, info.senders[0].ssrc_groups);
EXPECT_EQ(receiver_sp.ssrc_groups, info.receivers[0].ssrc_groups);
}
TEST_F(WebRtcVideoChannel2Test, MapsReceivedPayloadTypeToCodecName) {
FakeVideoReceiveStream* stream = AddRecvStream();
webrtc::VideoReceiveStream::Stats stats;
cricket::VideoMediaInfo info;
// Report no codec name before receiving.
stream->SetStats(stats);
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_STREQ("", info.receivers[0].codec_name.c_str());
// Report VP8 if we're receiving it.
stats.current_payload_type = kDefaultVp8PlType;
stream->SetStats(stats);
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_STREQ(kVp8CodecName, info.receivers[0].codec_name.c_str());
// Report no codec name for unknown playload types.
stats.current_payload_type = 3;
stream->SetStats(stats);
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_STREQ("", info.receivers[0].codec_name.c_str());
}
void WebRtcVideoChannel2Test::TestReceiveUnsignalledSsrcPacket(
uint8_t payload_type,
bool expect_created_receive_stream) {
// Add a RED RTX codec.
VideoCodec red_rtx_codec =
VideoCodec::CreateRtxCodec(kRedRtxPayloadType, kDefaultRedPlType);
recv_parameters_.codecs.push_back(red_rtx_codec);
EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
ASSERT_EQ(0u, fake_call_->GetVideoReceiveStreams().size());
const size_t kDataLength = 12;
uint8_t data[kDataLength];
memset(data, 0, sizeof(data));
rtc::Set8(data, 1, payload_type);
rtc::SetBE32(&data[8], kIncomingUnsignalledSsrc);
rtc::CopyOnWriteBuffer packet(data, kDataLength);
rtc::PacketTime packet_time;
channel_->OnPacketReceived(&packet, packet_time);
if (expect_created_receive_stream) {
EXPECT_EQ(1u, fake_call_->GetVideoReceiveStreams().size())
<< "Should have created a receive stream for payload type: "
<< payload_type;
} else {
EXPECT_EQ(0u, fake_call_->GetVideoReceiveStreams().size())
<< "Shouldn't have created a receive stream for payload type: "
<< payload_type;
}
}
TEST_F(WebRtcVideoChannel2Test, Vp8PacketCreatesUnsignalledStream) {
TestReceiveUnsignalledSsrcPacket(kDefaultVp8PlType, true);
}
TEST_F(WebRtcVideoChannel2Test, Vp9PacketCreatesUnsignalledStream) {
TestReceiveUnsignalledSsrcPacket(kDefaultVp9PlType, true);
}
TEST_F(WebRtcVideoChannel2Test, RtxPacketDoesntCreateUnsignalledStream) {
TestReceiveUnsignalledSsrcPacket(kDefaultRtxVp8PlType, false);
}
TEST_F(WebRtcVideoChannel2Test, UlpfecPacketDoesntCreateUnsignalledStream) {
TestReceiveUnsignalledSsrcPacket(kDefaultUlpfecType, false);
}
TEST_F(WebRtcVideoChannel2Test, RedRtxPacketDoesntCreateUnsignalledStream) {
TestReceiveUnsignalledSsrcPacket(kRedRtxPayloadType, false);
}
TEST_F(WebRtcVideoChannel2Test, CanSentMaxBitrateForExistingStream) {
AddSendStream();
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
cricket::VideoFormat capture_format_hd =
capturer.GetSupportedFormats()->front();
EXPECT_EQ(1280, capture_format_hd.width);
EXPECT_EQ(720, capture_format_hd.height);
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(capture_format_hd));
EXPECT_TRUE(channel_->SetSend(true));
int default_encoder_bitrate = GetMaxEncoderBitrate(capturer);
EXPECT_TRUE(default_encoder_bitrate > 1000);
// TODO(skvlad): Resolve the inconsistency between the interpretation
// of the global bitrate limit for audio and video:
// - Audio: max_bandwidth_bps = 0 - fail the operation,
// max_bandwidth_bps = -1 - remove the bandwidth limit
// - Video: max_bandwidth_bps = 0 - remove the bandwidth limit,
// max_bandwidth_bps = -1 - do not change the previously set
// limit.
SetAndExpectMaxBitrate(capturer, 1000, 0, 1000);
SetAndExpectMaxBitrate(capturer, 1000, 800, 800);
SetAndExpectMaxBitrate(capturer, 600, 800, 600);
SetAndExpectMaxBitrate(capturer, 0, 800, 800);
SetAndExpectMaxBitrate(capturer, 0, 0, default_encoder_bitrate);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannel2Test, CannotSetMaxBitrateForNonexistentStream) {
webrtc::RtpParameters nonexistent_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(0, nonexistent_parameters.encodings.size());
nonexistent_parameters.encodings.push_back(webrtc::RtpEncodingParameters());
EXPECT_FALSE(
channel_->SetRtpSendParameters(last_ssrc_, nonexistent_parameters));
}
TEST_F(WebRtcVideoChannel2Test,
CannotSetRtpSendParametersWithIncorrectNumberOfEncodings) {
// This test verifies that setting RtpParameters succeeds only if
// the structure contains exactly one encoding.
// TODO(skvlad): Update this test when we start supporting setting parameters
// for each encoding individually.
AddSendStream();
// Setting RtpParameters with no encoding is expected to fail.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
parameters.encodings.clear();
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters));
// Setting RtpParameters with exactly one encoding should succeed.
parameters.encodings.push_back(webrtc::RtpEncodingParameters());
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters));
// Two or more encodings should result in failure.
parameters.encodings.push_back(webrtc::RtpEncodingParameters());
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters));
}
// Test that a stream will not be sending if its encoding is made
// inactive through SetRtpSendParameters.
// TODO(deadbeef): Update this test when we start supporting setting parameters
// for each encoding individually.
TEST_F(WebRtcVideoChannel2Test, SetRtpSendParametersEncodingsActive) {
FakeVideoSendStream* stream = AddSendStream();
EXPECT_TRUE(channel_->SetSend(true));
EXPECT_TRUE(stream->IsSending());
// Get current parameters and change "active" to false.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
ASSERT_EQ(1u, parameters.encodings.size());
ASSERT_TRUE(parameters.encodings[0].active);
parameters.encodings[0].active = false;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters));
EXPECT_FALSE(stream->IsSending());
// Now change it back to active and verify we resume sending.
parameters.encodings[0].active = true;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters));
EXPECT_TRUE(stream->IsSending());
}
// Test that GetRtpSendParameters returns the currently configured codecs.
TEST_F(WebRtcVideoChannel2Test, GetRtpSendParametersCodecs) {
AddSendStream();
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kVp9Codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
ASSERT_EQ(2u, rtp_parameters.codecs.size());
EXPECT_EQ(kVp8Codec.ToCodecParameters(), rtp_parameters.codecs[0]);
EXPECT_EQ(kVp9Codec.ToCodecParameters(), rtp_parameters.codecs[1]);
}
// Test that if we set/get parameters multiple times, we get the same results.
TEST_F(WebRtcVideoChannel2Test, SetAndGetRtpSendParameters) {
AddSendStream();
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kVp9Codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
webrtc::RtpParameters initial_params =
channel_->GetRtpSendParameters(last_ssrc_);
// We should be able to set the params we just got.
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, initial_params));
// ... And this shouldn't change the params returned by GetRtpSendParameters.
EXPECT_EQ(initial_params, channel_->GetRtpSendParameters(last_ssrc_));
}
// Test that GetRtpReceiveParameters returns the currently configured codecs.
TEST_F(WebRtcVideoChannel2Test, GetRtpReceiveParametersCodecs) {
AddRecvStream();
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kVp9Codec);
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpReceiveParameters(last_ssrc_);
ASSERT_EQ(2u, rtp_parameters.codecs.size());
EXPECT_EQ(kVp8Codec.ToCodecParameters(), rtp_parameters.codecs[0]);
EXPECT_EQ(kVp9Codec.ToCodecParameters(), rtp_parameters.codecs[1]);
}
// Test that if we set/get parameters multiple times, we get the same results.
TEST_F(WebRtcVideoChannel2Test, SetAndGetRtpReceiveParameters) {
AddRecvStream();
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(kVp8Codec);
parameters.codecs.push_back(kVp9Codec);
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
webrtc::RtpParameters initial_params =
channel_->GetRtpReceiveParameters(last_ssrc_);
// We should be able to set the params we just got.
EXPECT_TRUE(channel_->SetRtpReceiveParameters(last_ssrc_, initial_params));
// ... And this shouldn't change the params returned by
// GetRtpReceiveParameters.
EXPECT_EQ(initial_params, channel_->GetRtpReceiveParameters(last_ssrc_));
}
void WebRtcVideoChannel2Test::TestReceiverLocalSsrcConfiguration(
bool receiver_first) {
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
const uint32_t kSenderSsrc = 0xC0FFEE;
const uint32_t kSecondSenderSsrc = 0xBADCAFE;
const uint32_t kReceiverSsrc = 0x4711;
const uint32_t kExpectedDefaultReceiverSsrc = 1;
if (receiver_first) {
AddRecvStream(StreamParams::CreateLegacy(kReceiverSsrc));
std::vector<FakeVideoReceiveStream*> receive_streams =
fake_call_->GetVideoReceiveStreams();
ASSERT_EQ(1u, receive_streams.size());
// Default local SSRC when we have no sender.
EXPECT_EQ(kExpectedDefaultReceiverSsrc,
receive_streams[0]->GetConfig().rtp.local_ssrc);
}
AddSendStream(StreamParams::CreateLegacy(kSenderSsrc));
if (!receiver_first)
AddRecvStream(StreamParams::CreateLegacy(kReceiverSsrc));
std::vector<FakeVideoReceiveStream*> receive_streams =
fake_call_->GetVideoReceiveStreams();
ASSERT_EQ(1u, receive_streams.size());
EXPECT_EQ(kSenderSsrc, receive_streams[0]->GetConfig().rtp.local_ssrc);
// Removing first sender should fall back to another (in this case the second)
// local send stream's SSRC.
AddSendStream(StreamParams::CreateLegacy(kSecondSenderSsrc));
ASSERT_TRUE(channel_->RemoveSendStream(kSenderSsrc));
receive_streams =
fake_call_->GetVideoReceiveStreams();
ASSERT_EQ(1u, receive_streams.size());
EXPECT_EQ(kSecondSenderSsrc, receive_streams[0]->GetConfig().rtp.local_ssrc);
// Removing the last sender should fall back to default local SSRC.
ASSERT_TRUE(channel_->RemoveSendStream(kSecondSenderSsrc));
receive_streams =
fake_call_->GetVideoReceiveStreams();
ASSERT_EQ(1u, receive_streams.size());
EXPECT_EQ(kExpectedDefaultReceiverSsrc,
receive_streams[0]->GetConfig().rtp.local_ssrc);
}
TEST_F(WebRtcVideoChannel2Test, ConfiguresLocalSsrc) {
TestReceiverLocalSsrcConfiguration(false);
}
TEST_F(WebRtcVideoChannel2Test, ConfiguresLocalSsrcOnExistingReceivers) {
TestReceiverLocalSsrcConfiguration(true);
}
class WebRtcVideoChannel2SimulcastTest : public testing::Test {
public:
WebRtcVideoChannel2SimulcastTest() : fake_call_(webrtc::Call::Config()) {}
void SetUp() override {
engine_.Init();
channel_.reset(
engine_.CreateChannel(&fake_call_, MediaConfig(), VideoOptions()));
last_ssrc_ = 123;
}
protected:
void VerifySimulcastSettings(const VideoCodec& codec,
size_t num_configured_streams,
size_t expected_num_streams) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
RTC_DCHECK(num_configured_streams <= ssrcs.size());
ssrcs.resize(num_configured_streams);
FakeVideoSendStream* stream =
AddSendStream(CreateSimStreamParams("cname", ssrcs));
// Send a full-size frame to trigger a stream reconfiguration to use all
// expected simulcast layers.
cricket::FakeVideoCapturer capturer;
EXPECT_TRUE(
channel_->SetVideoSend(ssrcs.front(), true, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(cricket::VideoFormat(
codec.width, codec.height,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420)));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
std::vector<webrtc::VideoStream> video_streams = stream->GetVideoStreams();
ASSERT_EQ(expected_num_streams, video_streams.size());
std::vector<webrtc::VideoStream> expected_streams = GetSimulcastConfig(
num_configured_streams, codec.width, codec.height, 0, kDefaultQpMax,
codec.framerate != 0 ? codec.framerate : kDefaultFramerate);
ASSERT_EQ(expected_streams.size(), video_streams.size());
size_t num_streams = video_streams.size();
int total_max_bitrate_bps = 0;
for (size_t i = 0; i < num_streams; ++i) {
EXPECT_EQ(expected_streams[i].width, video_streams[i].width);
EXPECT_EQ(expected_streams[i].height, video_streams[i].height);
EXPECT_GT(video_streams[i].max_framerate, 0);
EXPECT_EQ(expected_streams[i].max_framerate,
video_streams[i].max_framerate);
EXPECT_GT(video_streams[i].min_bitrate_bps, 0);
EXPECT_EQ(expected_streams[i].min_bitrate_bps,
video_streams[i].min_bitrate_bps);
EXPECT_GT(video_streams[i].target_bitrate_bps, 0);
EXPECT_EQ(expected_streams[i].target_bitrate_bps,
video_streams[i].target_bitrate_bps);
EXPECT_GT(video_streams[i].max_bitrate_bps, 0);
EXPECT_EQ(expected_streams[i].max_bitrate_bps,
video_streams[i].max_bitrate_bps);
EXPECT_GT(video_streams[i].max_qp, 0);
EXPECT_EQ(expected_streams[i].max_qp, video_streams[i].max_qp);
EXPECT_FALSE(expected_streams[i].temporal_layer_thresholds_bps.empty());
EXPECT_EQ(expected_streams[i].temporal_layer_thresholds_bps,
video_streams[i].temporal_layer_thresholds_bps);
if (i == num_streams - 1) {
total_max_bitrate_bps += video_streams[i].max_bitrate_bps;
} else {
total_max_bitrate_bps += video_streams[i].target_bitrate_bps;
}
}
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1u, info.senders.size());
EXPECT_EQ(total_max_bitrate_bps, info.senders[0].preferred_bitrate);
EXPECT_TRUE(channel_->SetVideoSend(ssrcs.front(), true, nullptr, nullptr));
}
FakeVideoSendStream* AddSendStream() {
return AddSendStream(StreamParams::CreateLegacy(last_ssrc_++));
}
FakeVideoSendStream* AddSendStream(const StreamParams& sp) {
size_t num_streams =
fake_call_.GetVideoSendStreams().size();
EXPECT_TRUE(channel_->AddSendStream(sp));
std::vector<FakeVideoSendStream*> streams =
fake_call_.GetVideoSendStreams();
EXPECT_EQ(num_streams + 1, streams.size());
return streams[streams.size() - 1];
}
std::vector<FakeVideoSendStream*> GetFakeSendStreams() {
return fake_call_.GetVideoSendStreams();
}
FakeVideoReceiveStream* AddRecvStream() {
return AddRecvStream(StreamParams::CreateLegacy(last_ssrc_++));
}
FakeVideoReceiveStream* AddRecvStream(const StreamParams& sp) {
size_t num_streams =
fake_call_.GetVideoReceiveStreams().size();
EXPECT_TRUE(channel_->AddRecvStream(sp));
std::vector<FakeVideoReceiveStream*> streams =
fake_call_.GetVideoReceiveStreams();
EXPECT_EQ(num_streams + 1, streams.size());
return streams[streams.size() - 1];
}
FakeCall fake_call_;
WebRtcVideoEngine2 engine_;
std::unique_ptr<VideoMediaChannel> channel_;
uint32_t last_ssrc_;
};
TEST_F(WebRtcVideoChannel2SimulcastTest, SetSendCodecsWith2SimulcastStreams) {
VerifySimulcastSettings(kVp8Codec, 2, 2);
}
TEST_F(WebRtcVideoChannel2SimulcastTest, SetSendCodecsWith3SimulcastStreams) {
VerifySimulcastSettings(kVp8Codec720p, 3, 3);
}
// Test that we normalize send codec format size in simulcast.
TEST_F(WebRtcVideoChannel2SimulcastTest, SetSendCodecsWithOddSizeInSimulcast) {
cricket::VideoCodec codec(kVp8Codec270p);
codec.width += 1;
codec.height += 1;
VerifySimulcastSettings(codec, 2, 2);
}
} // namespace cricket