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webrtc/media/engine/webrtcvideoengine_unittest.cc
Erik Språng 72e52ee619 Make simulcast screenshare default-on 
Bug: chromium:690537
Change-Id: I7380f5e7b3faa20ba60bebee8b8b4d74db885faf
Reviewed-on: https://webrtc-review.googlesource.com/c/112381
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25840}
2018-11-29 14:17:41 +00:00

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/*
* 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 <utility>
#include <vector>
#include "absl/strings/match.h"
#include "api/rtpparameters.h"
#include "api/test/mock_video_bitrate_allocator.h"
#include "api/test/mock_video_bitrate_allocator_factory.h"
#include "api/test/mock_video_decoder_factory.h"
#include "api/test/mock_video_encoder_factory.h"
#include "api/units/time_delta.h"
#include "api/video/builtin_video_bitrate_allocator_factory.h"
#include "api/video/video_bitrate_allocation.h"
#include "api/video_codecs/builtin_video_decoder_factory.h"
#include "api/video_codecs/builtin_video_encoder_factory.h"
#include "api/video_codecs/sdp_video_format.h"
#include "api/video_codecs/video_decoder_factory.h"
#include "api/video_codecs/video_encoder.h"
#include "api/video_codecs/video_encoder_factory.h"
#include "call/flexfec_receive_stream.h"
#include "common_video/h264/profile_level_id.h"
#include "logging/rtc_event_log/rtc_event_log.h"
#include "media/base/fakenetworkinterface.h"
#include "media/base/fakevideocapturer.h"
#include "media/base/fakevideorenderer.h"
#include "media/base/mediaconstants.h"
#include "media/base/rtputils.h"
#include "media/base/testutils.h"
#include "media/engine/constants.h"
#include "media/engine/fakewebrtccall.h"
#include "media/engine/fakewebrtcvideoengine.h"
#include "media/engine/simulcast.h"
#include "media/engine/webrtcvideoengine.h"
#include "media/engine/webrtcvoiceengine.h"
#include "modules/rtp_rtcp/include/rtp_header_parser.h"
#include "rtc_base/arraysize.h"
#include "rtc_base/fakeclock.h"
#include "rtc_base/gunit.h"
#include "rtc_base/numerics/safe_conversions.h"
#include "rtc_base/stringutils.h"
#include "test/field_trial.h"
#include "test/gmock.h"
using cricket::FakeVideoCapturerWithTaskQueue;
using webrtc::BitrateConstraints;
using webrtc::RtpExtension;
using testing::Field;
namespace {
static const int kDefaultQpMax = 56;
static const uint8_t kRedRtxPayloadType = 125;
static const uint32_t kTimeout = 5000U;
static const uint32_t kDefaultReceiveSsrc = 0;
static const uint32_t kSsrc = 1234u;
static const uint32_t kSsrcs4[] = {1, 2, 3, 4};
static const int kVideoWidth = 640;
static const int kVideoHeight = 360;
static const int kFramerate = 30;
static const uint32_t kSsrcs1[] = {1};
static const uint32_t kSsrcs3[] = {1, 2, 3};
static const uint32_t kRtxSsrcs1[] = {4};
static const uint32_t kFlexfecSsrc = 5;
static const uint32_t kIncomingUnsignalledSsrc = 0xC0FFEE;
static const uint32_t kDefaultRecvSsrc = 0;
static const char kUnsupportedExtensionName[] =
"urn:ietf:params:rtp-hdrext:unsupported";
cricket::VideoCodec RemoveFeedbackParams(cricket::VideoCodec&& codec) {
codec.feedback_params = cricket::FeedbackParams();
return std::move(codec);
}
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)));
}
// Return true if any codec in |codecs| is an RTX codec with associated payload
// type |payload_type|.
bool HasRtxCodec(const std::vector<cricket::VideoCodec>& codecs,
int payload_type) {
for (const cricket::VideoCodec& codec : codecs) {
int associated_payload_type;
if (absl::EqualsIgnoreCase(codec.name.c_str(), "rtx") &&
codec.GetParam(cricket::kCodecParamAssociatedPayloadType,
&associated_payload_type) &&
associated_payload_type == payload_type) {
return true;
}
}
return false;
}
// TODO(nisse): Duplicated in call.cc.
const int* FindKeyByValue(const std::map<int, int>& m, int v) {
for (const auto& kv : m) {
if (kv.second == v)
return &kv.first;
}
return nullptr;
}
bool HasRtxReceiveAssociation(const webrtc::VideoReceiveStream::Config& config,
int payload_type) {
return FindKeyByValue(config.rtp.rtx_associated_payload_types,
payload_type) != nullptr;
}
// Check that there's an Rtx payload type for each decoder.
bool VerifyRtxReceiveAssociations(
const webrtc::VideoReceiveStream::Config& config) {
for (const auto& decoder : config.decoders) {
if (!HasRtxReceiveAssociation(config, decoder.payload_type))
return false;
}
return true;
}
rtc::scoped_refptr<webrtc::VideoFrameBuffer> CreateBlackFrameBuffer(
int width,
int height) {
rtc::scoped_refptr<webrtc::I420Buffer> buffer =
webrtc::I420Buffer::Create(width, height);
webrtc::I420Buffer::SetBlack(buffer);
return buffer;
}
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.rtp.payload_type);
EXPECT_TRUE(it != rtx_types.end() &&
it->second == config.rtp.rtx.payload_type);
if (config.rtp.ulpfec.red_rtx_payload_type != -1) {
it = rtx_types.find(config.rtp.ulpfec.red_payload_type);
EXPECT_TRUE(it != rtx_types.end() &&
it->second == config.rtp.ulpfec.red_rtx_payload_type);
}
}
cricket::MediaConfig GetMediaConfig() {
cricket::MediaConfig media_config;
media_config.video.enable_cpu_adaptation = false;
return media_config;
}
// Values from GetMaxDefaultVideoBitrateKbps in webrtcvideoengine.cc.
int GetMaxDefaultBitrateBps(size_t width, size_t height) {
if (width * height <= 320 * 240) {
return 600000;
} else if (width * height <= 640 * 480) {
return 1700000;
} else if (width * height <= 960 * 540) {
return 2000000;
} else {
return 2500000;
}
}
class MockVideoSource : public rtc::VideoSourceInterface<webrtc::VideoFrame> {
public:
MOCK_METHOD2(AddOrUpdateSink,
void(rtc::VideoSinkInterface<webrtc::VideoFrame>* sink,
const rtc::VideoSinkWants& wants));
MOCK_METHOD1(RemoveSink,
void(rtc::VideoSinkInterface<webrtc::VideoFrame>* sink));
};
} // namespace
#define EXPECT_FRAME_WAIT(c, w, h, t) \
EXPECT_EQ_WAIT((c), renderer_.num_rendered_frames(), (t)); \
EXPECT_EQ((w), renderer_.width()); \
EXPECT_EQ((h), renderer_.height()); \
EXPECT_EQ(0, renderer_.errors());
#define EXPECT_FRAME_ON_RENDERER_WAIT(r, c, w, h, t) \
EXPECT_EQ_WAIT((c), (r).num_rendered_frames(), (t)); \
EXPECT_EQ((w), (r).width()); \
EXPECT_EQ((h), (r).height()); \
EXPECT_EQ(0, (r).errors());
namespace cricket {
class WebRtcVideoEngineTest : public ::testing::Test {
public:
WebRtcVideoEngineTest() : WebRtcVideoEngineTest("") {}
explicit WebRtcVideoEngineTest(const char* field_trials)
: override_field_trials_(field_trials),
call_(webrtc::Call::Create(webrtc::Call::Config(&event_log_))),
encoder_factory_(new cricket::FakeWebRtcVideoEncoderFactory),
decoder_factory_(new cricket::FakeWebRtcVideoDecoderFactory),
engine_(std::unique_ptr<cricket::FakeWebRtcVideoEncoderFactory>(
encoder_factory_),
std::unique_ptr<cricket::FakeWebRtcVideoDecoderFactory>(
decoder_factory_),
webrtc::CreateBuiltinVideoBitrateAllocatorFactory()) {
// Ensure fake clock doesn't return 0, which will cause some initializations
// fail inside RTP senders.
fake_clock_.AdvanceTimeMicros(1);
}
protected:
void AssignDefaultAptRtxTypes();
void AssignDefaultCodec();
// Find the index of the codec in the engine with the given name. The codec
// must be present.
size_t GetEngineCodecIndex(const std::string& name) const;
// Find the codec in the engine with the given name. The codec must be
// present.
cricket::VideoCodec GetEngineCodec(const std::string& name) const;
VideoMediaChannel* SetSendParamsWithAllSupportedCodecs();
VideoMediaChannel* SetRecvParamsWithSupportedCodecs(
const std::vector<VideoCodec>& codecs);
void TestExtendedEncoderOveruse(bool use_external_encoder);
// Has to be the first one, so it is initialized before the call or there is a
// race condition in the clock access.
rtc::ScopedFakeClock fake_clock_;
webrtc::test::ScopedFieldTrials override_field_trials_;
webrtc::RtcEventLogNullImpl event_log_;
// Used in WebRtcVideoEngineVoiceTest, but defined here so it's properly
// initialized when the constructor is called.
std::unique_ptr<webrtc::Call> call_;
cricket::FakeWebRtcVideoEncoderFactory* encoder_factory_;
cricket::FakeWebRtcVideoDecoderFactory* decoder_factory_;
WebRtcVideoEngine engine_;
VideoCodec default_codec_;
std::map<int, int> default_apt_rtx_types_;
};
TEST_F(WebRtcVideoEngineTest, DefaultRtxCodecHasAssociatedPayloadTypeSet) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
AssignDefaultCodec();
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(WebRtcVideoEngineTest, 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(WebRtcVideoEngineTest, 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.";
}
TEST_F(WebRtcVideoEngineTest, 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(WebRtcVideoEngineTest, 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.";
}
class WebRtcVideoEngineTestWithGenericDescriptor
: public WebRtcVideoEngineTest {
public:
WebRtcVideoEngineTestWithGenericDescriptor()
: WebRtcVideoEngineTest("WebRTC-GenericDescriptorAdvertised/Enabled/") {}
};
TEST_F(WebRtcVideoEngineTestWithGenericDescriptor, AdvertiseGenericDescriptor) {
RtpCapabilities capabilities = engine_.GetCapabilities();
ASSERT_FALSE(capabilities.header_extensions.empty());
for (const RtpExtension& extension : capabilities.header_extensions) {
if (extension.uri == RtpExtension::kGenericFrameDescriptorUri) {
EXPECT_EQ(RtpExtension::kGenericFrameDescriptorDefaultId, extension.id);
return;
}
}
FAIL() << "Generic descriptor extension not in header-extension list.";
}
TEST_F(WebRtcVideoEngineTest, CVOSetHeaderExtensionBeforeCapturer) {
// Allocate the source first to prevent early destruction before channel's
// dtor is called.
testing::NiceMock<MockVideoSource> video_source;
encoder_factory_->AddSupportedVideoCodecType("VP8");
std::unique_ptr<VideoMediaChannel> channel(
SetSendParamsWithAllSupportedCodecs());
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(kSsrc)));
// Add CVO extension.
const int id = 1;
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.extensions.push_back(
RtpExtension(RtpExtension::kVideoRotationUri, id));
EXPECT_TRUE(channel->SetSendParameters(parameters));
EXPECT_CALL(
video_source,
AddOrUpdateSink(testing::_,
Field(&rtc::VideoSinkWants::rotation_applied, false)));
// Set capturer.
EXPECT_TRUE(channel->SetVideoSend(kSsrc, nullptr, &video_source));
// Verify capturer has turned off applying rotation.
testing::Mock::VerifyAndClear(&video_source);
// Verify removing header extension turns on applying rotation.
parameters.extensions.clear();
EXPECT_CALL(
video_source,
AddOrUpdateSink(testing::_,
Field(&rtc::VideoSinkWants::rotation_applied, true)));
EXPECT_TRUE(channel->SetSendParameters(parameters));
}
TEST_F(WebRtcVideoEngineTest, CVOSetHeaderExtensionBeforeAddSendStream) {
// Allocate the source first to prevent early destruction before channel's
// dtor is called.
testing::NiceMock<MockVideoSource> video_source;
encoder_factory_->AddSupportedVideoCodecType("VP8");
std::unique_ptr<VideoMediaChannel> channel(
SetSendParamsWithAllSupportedCodecs());
// Add CVO extension.
const int id = 1;
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.extensions.push_back(
RtpExtension(RtpExtension::kVideoRotationUri, id));
EXPECT_TRUE(channel->SetSendParameters(parameters));
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(kSsrc)));
// Set source.
EXPECT_CALL(
video_source,
AddOrUpdateSink(testing::_,
Field(&rtc::VideoSinkWants::rotation_applied, false)));
EXPECT_TRUE(channel->SetVideoSend(kSsrc, nullptr, &video_source));
}
TEST_F(WebRtcVideoEngineTest, CVOSetHeaderExtensionAfterCapturer) {
testing::NiceMock<MockVideoSource> video_source;
encoder_factory_->AddSupportedVideoCodecType("VP8");
encoder_factory_->AddSupportedVideoCodecType("VP9");
std::unique_ptr<VideoMediaChannel> channel(
SetSendParamsWithAllSupportedCodecs());
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(kSsrc)));
// Set capturer.
EXPECT_CALL(
video_source,
AddOrUpdateSink(testing::_,
Field(&rtc::VideoSinkWants::rotation_applied, true)));
EXPECT_TRUE(channel->SetVideoSend(kSsrc, nullptr, &video_source));
// Verify capturer has turned on applying rotation.
testing::Mock::VerifyAndClear(&video_source);
// Add CVO extension.
const int id = 1;
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP9"));
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_CALL(
video_source,
AddOrUpdateSink(testing::_,
Field(&rtc::VideoSinkWants::rotation_applied, false)));
EXPECT_TRUE(channel->SetSendParameters(parameters));
// Verify capturer has turned off applying rotation.
testing::Mock::VerifyAndClear(&video_source);
// Verify removing header extension turns on applying rotation.
parameters.extensions.clear();
EXPECT_CALL(
video_source,
AddOrUpdateSink(testing::_,
Field(&rtc::VideoSinkWants::rotation_applied, true)));
EXPECT_TRUE(channel->SetSendParameters(parameters));
}
TEST_F(WebRtcVideoEngineTest, SetSendFailsBeforeSettingCodecs) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions()));
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(WebRtcVideoEngineTest, GetStatsWithoutSendCodecsSetDoesNotCrash) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions()));
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(123)));
VideoMediaInfo info;
channel->GetStats(&info);
}
TEST_F(WebRtcVideoEngineTest, UseFactoryForVp8WhenSupported) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
std::unique_ptr<VideoMediaChannel> channel(
SetSendParamsWithAllSupportedCodecs());
channel->OnReadyToSend(true);
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
EXPECT_EQ(0, encoder_factory_->GetNumCreatedEncoders());
EXPECT_TRUE(channel->SetSend(true));
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel->SetVideoSend(kSsrc, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(capturer.CaptureFrame());
// Sending one frame will have allocate the encoder.
ASSERT_TRUE(encoder_factory_->WaitForCreatedVideoEncoders(1));
EXPECT_TRUE_WAIT(encoder_factory_->encoders()[0]->GetNumEncodedFrames() > 0,
kTimeout);
int num_created_encoders = encoder_factory_->GetNumCreatedEncoders();
EXPECT_EQ(num_created_encoders, 1);
// Setting codecs of the same type should not reallocate any encoders
// (expecting a no-op).
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
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());
}
// Test that when an encoder factory supports H264, we add an RTX
// codec for it.
// TODO(deadbeef): This test should be updated if/when we start
// adding RTX codecs for unrecognized codec names.
TEST_F(WebRtcVideoEngineTest, RtxCodecAddedForH264Codec) {
using webrtc::H264::ProfileLevelIdToString;
using webrtc::H264::ProfileLevelId;
using webrtc::H264::kLevel1;
webrtc::SdpVideoFormat h264_constrained_baseline("H264");
h264_constrained_baseline.parameters[kH264FmtpProfileLevelId] =
*ProfileLevelIdToString(
ProfileLevelId(webrtc::H264::kProfileConstrainedBaseline, kLevel1));
webrtc::SdpVideoFormat h264_constrained_high("H264");
h264_constrained_high.parameters[kH264FmtpProfileLevelId] =
*ProfileLevelIdToString(
ProfileLevelId(webrtc::H264::kProfileConstrainedHigh, kLevel1));
webrtc::SdpVideoFormat h264_high("H264");
h264_high.parameters[kH264FmtpProfileLevelId] = *ProfileLevelIdToString(
ProfileLevelId(webrtc::H264::kProfileHigh, kLevel1));
encoder_factory_->AddSupportedVideoCodec(h264_constrained_baseline);
encoder_factory_->AddSupportedVideoCodec(h264_constrained_high);
encoder_factory_->AddSupportedVideoCodec(h264_high);
// First figure out what payload types the test codecs got assigned.
const std::vector<cricket::VideoCodec> codecs = engine_.codecs();
// Now search for RTX codecs for them. Expect that they all have associated
// RTX codecs.
EXPECT_TRUE(HasRtxCodec(
codecs,
FindMatchingCodec(codecs, cricket::VideoCodec(h264_constrained_baseline))
->id));
EXPECT_TRUE(HasRtxCodec(
codecs,
FindMatchingCodec(codecs, cricket::VideoCodec(h264_constrained_high))
->id));
EXPECT_TRUE(HasRtxCodec(
codecs, FindMatchingCodec(codecs, cricket::VideoCodec(h264_high))->id));
}
#if defined(RTC_ENABLE_VP9)
TEST_F(WebRtcVideoEngineTest, CanConstructDecoderForVp9EncoderFactory) {
encoder_factory_->AddSupportedVideoCodecType("VP9");
std::unique_ptr<VideoMediaChannel> channel(
SetSendParamsWithAllSupportedCodecs());
EXPECT_TRUE(
channel->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
}
#endif // defined(RTC_ENABLE_VP9)
TEST_F(WebRtcVideoEngineTest, PropagatesInputFrameTimestamp) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
FakeCall* fake_call = new FakeCall();
call_.reset(fake_call);
std::unique_ptr<VideoMediaChannel> channel(
SetSendParamsWithAllSupportedCodecs());
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel->SetVideoSend(kSsrc, 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));
}
void WebRtcVideoEngineTest::AssignDefaultAptRtxTypes() {
std::vector<VideoCodec> engine_codecs = engine_.codecs();
RTC_DCHECK(!engine_codecs.empty());
for (const cricket::VideoCodec& codec : engine_codecs) {
if (codec.name == "rtx") {
int associated_payload_type;
if (codec.GetParam(kCodecParamAssociatedPayloadType,
&associated_payload_type)) {
default_apt_rtx_types_[associated_payload_type] = codec.id;
}
}
}
}
void WebRtcVideoEngineTest::AssignDefaultCodec() {
std::vector<VideoCodec> engine_codecs = engine_.codecs();
RTC_DCHECK(!engine_codecs.empty());
bool codec_set = false;
for (const cricket::VideoCodec& codec : engine_codecs) {
if (!codec_set && codec.name != "rtx" && codec.name != "red" &&
codec.name != "ulpfec") {
default_codec_ = codec;
codec_set = true;
}
}
RTC_DCHECK(codec_set);
}
size_t WebRtcVideoEngineTest::GetEngineCodecIndex(
const std::string& name) const {
const std::vector<cricket::VideoCodec> codecs = engine_.codecs();
for (size_t i = 0; i < codecs.size(); ++i) {
const cricket::VideoCodec engine_codec = codecs[i];
if (!absl::EqualsIgnoreCase(name, engine_codec.name))
continue;
// The tests only use H264 Constrained Baseline. Make sure we don't return
// an internal H264 codec from the engine with a different H264 profile.
if (absl::EqualsIgnoreCase(name.c_str(), kH264CodecName)) {
const absl::optional<webrtc::H264::ProfileLevelId> profile_level_id =
webrtc::H264::ParseSdpProfileLevelId(engine_codec.params);
if (profile_level_id->profile !=
webrtc::H264::kProfileConstrainedBaseline) {
continue;
}
}
return i;
}
// This point should never be reached.
ADD_FAILURE() << "Unrecognized codec name: " << name;
return -1;
}
cricket::VideoCodec WebRtcVideoEngineTest::GetEngineCodec(
const std::string& name) const {
return engine_.codecs()[GetEngineCodecIndex(name)];
}
VideoMediaChannel*
WebRtcVideoEngineTest::SetSendParamsWithAllSupportedCodecs() {
VideoMediaChannel* channel = engine_.CreateMediaChannel(
call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions());
cricket::VideoSendParameters parameters;
// We need to look up the codec in the engine to get the correct payload type.
for (const webrtc::SdpVideoFormat& format :
encoder_factory_->GetSupportedFormats()) {
cricket::VideoCodec engine_codec = GetEngineCodec(format.name);
if (std::find(parameters.codecs.begin(), parameters.codecs.end(),
engine_codec) == parameters.codecs.end()) {
parameters.codecs.push_back(engine_codec);
}
}
EXPECT_TRUE(channel->SetSendParameters(parameters));
return channel;
}
VideoMediaChannel* WebRtcVideoEngineTest::SetRecvParamsWithSupportedCodecs(
const std::vector<VideoCodec>& codecs) {
VideoMediaChannel* channel = engine_.CreateMediaChannel(
call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions());
cricket::VideoRecvParameters parameters;
parameters.codecs = codecs;
EXPECT_TRUE(channel->SetRecvParameters(parameters));
return channel;
}
TEST_F(WebRtcVideoEngineTest, UsesSimulcastAdapterForVp8Factories) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
std::unique_ptr<VideoMediaChannel> channel(
SetSendParamsWithAllSupportedCodecs());
std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
EXPECT_TRUE(channel->AddSendStream(CreateSimStreamParams("cname", ssrcs)));
EXPECT_TRUE(channel->SetSend(true));
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel->SetVideoSend(ssrcs.front(), 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(), nullptr, nullptr));
channel.reset();
ASSERT_EQ(0u, encoder_factory_->encoders().size());
}
TEST_F(WebRtcVideoEngineTest, ChannelWithH264CanChangeToVp8) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
encoder_factory_->AddSupportedVideoCodecType("H264");
// Set capturer.
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions()));
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("H264"));
EXPECT_TRUE(channel->SetSendParameters(parameters));
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
EXPECT_TRUE(channel->SetVideoSend(kSsrc, nullptr, &capturer));
// Sending one frame will have allocate the encoder.
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_EQ_WAIT(1u, encoder_factory_->encoders().size(), kTimeout);
cricket::VideoSendParameters new_parameters;
new_parameters.codecs.push_back(GetEngineCodec("VP8"));
EXPECT_TRUE(channel->SetSendParameters(new_parameters));
// Sending one frame will switch encoder.
EXPECT_TRUE(capturer.CaptureFrame());
EXPECT_EQ_WAIT(1u, encoder_factory_->encoders().size(), kTimeout);
}
TEST_F(WebRtcVideoEngineTest,
UsesSimulcastAdapterForVp8WithCombinedVP8AndH264Factory) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
encoder_factory_->AddSupportedVideoCodecType("H264");
std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions()));
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
EXPECT_TRUE(channel->SetSendParameters(parameters));
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.
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel->SetVideoSend(ssrcs.front(), 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(WebRtcVideoEngineTest,
DestroysNonSimulcastEncoderFromCombinedVP8AndH264Factory) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
encoder_factory_->AddSupportedVideoCodecType("H264");
std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions()));
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("H264"));
EXPECT_TRUE(channel->SetSendParameters(parameters));
EXPECT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
// Send a frame of 720p. This should trigger a "real" encoder initialization.
cricket::VideoFormat format(
1280, 720, cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420);
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel->SetVideoSend(kSsrc, nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(format));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_TRUE(encoder_factory_->WaitForCreatedVideoEncoders(1));
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(WebRtcVideoEngineTest, SimulcastEnabledForH264BehindFieldTrial) {
webrtc::test::ScopedFieldTrials override_field_trials_(
"WebRTC-H264Simulcast/Enabled/");
encoder_factory_->AddSupportedVideoCodecType("H264");
std::unique_ptr<VideoMediaChannel> channel(engine_.CreateMediaChannel(
call_.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions()));
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("H264"));
EXPECT_TRUE(channel->SetSendParameters(parameters));
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);
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel->SetVideoSend(ssrcs[0], nullptr, &capturer));
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(format));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_TRUE(encoder_factory_->WaitForCreatedVideoEncoders(1));
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_LT(1u, encoder->GetCodecSettings().numberOfSimulcastStreams);
EXPECT_TRUE(channel->SetVideoSend(ssrcs[0], nullptr, nullptr));
}
// Test that the FlexFEC field trial properly alters the output of
// WebRtcVideoEngine::codecs(), for an existing |engine_| object.
//
// TODO(brandtr): Remove this test, when the FlexFEC field trial is gone.
TEST_F(WebRtcVideoEngineTest,
Flexfec03SupportedAsInternalCodecBehindFieldTrial) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
auto is_flexfec = [](const VideoCodec& codec) {
if (codec.name == "flexfec-03")
return true;
return false;
};
// FlexFEC is not active without field trial.
const std::vector<VideoCodec> codecs_before = engine_.codecs();
EXPECT_EQ(codecs_before.end(), std::find_if(codecs_before.begin(),
codecs_before.end(), is_flexfec));
// FlexFEC is active with field trial.
webrtc::test::ScopedFieldTrials override_field_trials_(
"WebRTC-FlexFEC-03-Advertised/Enabled/");
const std::vector<VideoCodec> codecs_after = engine_.codecs();
EXPECT_NE(codecs_after.end(),
std::find_if(codecs_after.begin(), codecs_after.end(), is_flexfec));
}
// Test that codecs are added in the order they are reported from the factory.
TEST_F(WebRtcVideoEngineTest, ReportSupportedCodecs) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
const char* kFakeCodecName = "FakeCodec";
encoder_factory_->AddSupportedVideoCodecType(kFakeCodecName);
// The last reported codec should appear after the first codec in the vector.
const size_t vp8_index = GetEngineCodecIndex("VP8");
const size_t fake_codec_index = GetEngineCodecIndex(kFakeCodecName);
EXPECT_LT(vp8_index, fake_codec_index);
}
// Test that a codec that was added after the engine was initialized
// does show up in the codec list after it was added.
TEST_F(WebRtcVideoEngineTest, ReportSupportedAddedCodec) {
const char* kFakeExternalCodecName1 = "FakeExternalCodec1";
const char* kFakeExternalCodecName2 = "FakeExternalCodec2";
// Set up external encoder factory with first codec, and initialize engine.
encoder_factory_->AddSupportedVideoCodecType(kFakeExternalCodecName1);
std::vector<cricket::VideoCodec> codecs_before(engine_.codecs());
// Add second codec.
encoder_factory_->AddSupportedVideoCodecType(kFakeExternalCodecName2);
std::vector<cricket::VideoCodec> codecs_after(engine_.codecs());
// The codec itself and RTX should have been added.
EXPECT_EQ(codecs_before.size() + 2, codecs_after.size());
// Check that both fake codecs are present and that the second fake codec
// appears after the first fake codec.
const size_t fake_codec_index1 = GetEngineCodecIndex(kFakeExternalCodecName1);
const size_t fake_codec_index2 = GetEngineCodecIndex(kFakeExternalCodecName2);
EXPECT_LT(fake_codec_index1, fake_codec_index2);
}
TEST_F(WebRtcVideoEngineTest, ReportRtxForExternalCodec) {
const char* kFakeCodecName = "FakeCodec";
encoder_factory_->AddSupportedVideoCodecType(kFakeCodecName);
const size_t fake_codec_index = GetEngineCodecIndex(kFakeCodecName);
EXPECT_EQ("rtx", engine_.codecs().at(fake_codec_index + 1).name);
}
TEST_F(WebRtcVideoEngineTest, RegisterDecodersIfSupported) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
decoder_factory_->AddSupportedVideoCodecType(webrtc::SdpVideoFormat("VP8"));
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
std::unique_ptr<VideoMediaChannel> channel(
SetRecvParamsWithSupportedCodecs(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.
TEST_F(WebRtcVideoEngineTest, RegisterH264DecoderIfSupported) {
// 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.
encoder_factory_->AddSupportedVideoCodecType("H264");
decoder_factory_->AddSupportedVideoCodecType(webrtc::SdpVideoFormat("H264"));
std::vector<cricket::VideoCodec> codecs;
codecs.push_back(GetEngineCodec("H264"));
std::unique_ptr<VideoMediaChannel> channel(
SetRecvParamsWithSupportedCodecs(codecs));
EXPECT_TRUE(
channel->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
ASSERT_EQ(1u, decoder_factory_->decoders().size());
}
// Tests when GetSources is called with non-existing ssrc, it will return an
// empty list of RtpSource without crashing.
TEST_F(WebRtcVideoEngineTest, GetSourcesWithNonExistingSsrc) {
// Setup an recv stream with |kSsrc|.
encoder_factory_->AddSupportedVideoCodecType("VP8");
decoder_factory_->AddSupportedVideoCodecType(webrtc::SdpVideoFormat("VP8"));
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
std::unique_ptr<VideoMediaChannel> channel(
SetRecvParamsWithSupportedCodecs(parameters.codecs));
EXPECT_TRUE(
channel->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
// Call GetSources with |kSsrc + 1| which doesn't exist.
std::vector<webrtc::RtpSource> sources = channel->GetSources(kSsrc + 1);
EXPECT_EQ(0u, sources.size());
}
TEST(WebRtcVideoEngineNewVideoCodecFactoryTest, NullFactories) {
std::unique_ptr<webrtc::VideoEncoderFactory> encoder_factory;
std::unique_ptr<webrtc::VideoDecoderFactory> decoder_factory;
std::unique_ptr<webrtc::VideoBitrateAllocatorFactory> rate_allocator_factory;
WebRtcVideoEngine engine(std::move(encoder_factory),
std::move(decoder_factory),
std::move(rate_allocator_factory));
EXPECT_EQ(0u, engine.codecs().size());
}
TEST(WebRtcVideoEngineNewVideoCodecFactoryTest, EmptyFactories) {
// |engine| take ownership of the factories.
webrtc::MockVideoEncoderFactory* encoder_factory =
new webrtc::MockVideoEncoderFactory();
webrtc::MockVideoDecoderFactory* decoder_factory =
new webrtc::MockVideoDecoderFactory();
webrtc::MockVideoBitrateAllocatorFactory* rate_allocator_factory =
new webrtc::MockVideoBitrateAllocatorFactory();
WebRtcVideoEngine engine(
(std::unique_ptr<webrtc::VideoEncoderFactory>(encoder_factory)),
(std::unique_ptr<webrtc::VideoDecoderFactory>(decoder_factory)),
(std::unique_ptr<webrtc::VideoBitrateAllocatorFactory>(
rate_allocator_factory)));
EXPECT_CALL(*encoder_factory, GetSupportedFormats());
EXPECT_EQ(0u, engine.codecs().size());
EXPECT_CALL(*encoder_factory, Die());
EXPECT_CALL(*decoder_factory, Die());
EXPECT_CALL(*rate_allocator_factory, Die());
}
// Test full behavior in the video engine when video codec factories of the new
// type are injected supporting the single codec Vp8. Check the returned codecs
// from the engine and that we will create a Vp8 encoder and decoder using the
// new factories.
TEST(WebRtcVideoEngineNewVideoCodecFactoryTest, Vp8) {
// |engine| take ownership of the factories.
webrtc::MockVideoEncoderFactory* encoder_factory =
new webrtc::MockVideoEncoderFactory();
webrtc::MockVideoDecoderFactory* decoder_factory =
new webrtc::MockVideoDecoderFactory();
webrtc::MockVideoBitrateAllocatorFactory* rate_allocator_factory =
new webrtc::MockVideoBitrateAllocatorFactory();
EXPECT_CALL(*rate_allocator_factory,
CreateVideoBitrateAllocatorProxy(Field(
&webrtc::VideoCodec::codecType, webrtc::kVideoCodecVP8)))
.WillOnce(testing::Return(new webrtc::MockVideoBitrateAllocator()));
WebRtcVideoEngine engine(
(std::unique_ptr<webrtc::VideoEncoderFactory>(encoder_factory)),
(std::unique_ptr<webrtc::VideoDecoderFactory>(decoder_factory)),
(std::unique_ptr<webrtc::VideoBitrateAllocatorFactory>(
rate_allocator_factory)));
const webrtc::SdpVideoFormat vp8_format("VP8");
const std::vector<webrtc::SdpVideoFormat> supported_formats = {vp8_format};
EXPECT_CALL(*encoder_factory, GetSupportedFormats())
.WillRepeatedly(testing::Return(supported_formats));
// Verify the codecs from the engine.
const std::vector<VideoCodec> engine_codecs = engine.codecs();
// Verify default codecs has been added correctly.
EXPECT_EQ(5u, engine_codecs.size());
EXPECT_EQ("VP8", engine_codecs.at(0).name);
// RTX codec for VP8.
EXPECT_EQ("rtx", engine_codecs.at(1).name);
int vp8_associated_payload;
EXPECT_TRUE(engine_codecs.at(1).GetParam(kCodecParamAssociatedPayloadType,
&vp8_associated_payload));
EXPECT_EQ(vp8_associated_payload, engine_codecs.at(0).id);
EXPECT_EQ(kRedCodecName, engine_codecs.at(2).name);
// RTX codec for RED.
EXPECT_EQ("rtx", engine_codecs.at(3).name);
int red_associated_payload;
EXPECT_TRUE(engine_codecs.at(3).GetParam(kCodecParamAssociatedPayloadType,
&red_associated_payload));
EXPECT_EQ(red_associated_payload, engine_codecs.at(2).id);
EXPECT_EQ(kUlpfecCodecName, engine_codecs.at(4).name);
int associated_payload_type;
EXPECT_TRUE(engine_codecs.at(1).GetParam(
cricket::kCodecParamAssociatedPayloadType, &associated_payload_type));
EXPECT_EQ(engine_codecs.at(0).id, associated_payload_type);
// Verify default parameters has been added to the VP8 codec.
VerifyCodecHasDefaultFeedbackParams(engine_codecs.at(0));
// Mock encoder creation. |engine| take ownership of the encoder.
webrtc::VideoEncoderFactory::CodecInfo codec_info;
codec_info.is_hardware_accelerated = false;
codec_info.has_internal_source = false;
const webrtc::SdpVideoFormat format("VP8");
EXPECT_CALL(*encoder_factory, QueryVideoEncoder(format))
.WillRepeatedly(testing::Return(codec_info));
FakeWebRtcVideoEncoder* const encoder = new FakeWebRtcVideoEncoder(nullptr);
rtc::Event encoder_created;
EXPECT_CALL(*encoder_factory, CreateVideoEncoderProxy(format))
.WillOnce(
::testing::DoAll(::testing::InvokeWithoutArgs(
[&encoder_created]() { encoder_created.Set(); }),
::testing::Return(encoder)));
// Mock decoder creation. |engine| take ownership of the decoder.
FakeWebRtcVideoDecoder* const decoder = new FakeWebRtcVideoDecoder(nullptr);
EXPECT_CALL(*decoder_factory, CreateVideoDecoderProxy(format))
.WillOnce(testing::Return(decoder));
// Create a call.
webrtc::RtcEventLogNullImpl event_log;
std::unique_ptr<webrtc::Call> call(
webrtc::Call::Create(webrtc::Call::Config(&event_log)));
// Create send channel.
const int send_ssrc = 123;
std::unique_ptr<VideoMediaChannel> send_channel(engine.CreateMediaChannel(
call.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions()));
cricket::VideoSendParameters send_parameters;
send_parameters.codecs.push_back(engine_codecs.at(0));
EXPECT_TRUE(send_channel->SetSendParameters(send_parameters));
send_channel->OnReadyToSend(true);
EXPECT_TRUE(
send_channel->AddSendStream(StreamParams::CreateLegacy(send_ssrc)));
EXPECT_TRUE(send_channel->SetSend(true));
// Set capturer.
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(send_channel->SetVideoSend(send_ssrc, nullptr, &capturer));
// Sending one frame will allocate the encoder.
EXPECT_TRUE(capturer.CaptureFrame());
encoder_created.Wait(kTimeout);
// Create recv channel.
const int recv_ssrc = 321;
std::unique_ptr<VideoMediaChannel> recv_channel(engine.CreateMediaChannel(
call.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions()));
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(engine_codecs.at(0));
EXPECT_TRUE(recv_channel->SetRecvParameters(recv_parameters));
EXPECT_TRUE(recv_channel->AddRecvStream(
cricket::StreamParams::CreateLegacy(recv_ssrc)));
// Remove streams previously added to free the encoder and decoder instance.
EXPECT_CALL(*encoder_factory, Die());
EXPECT_CALL(*decoder_factory, Die());
EXPECT_CALL(*rate_allocator_factory, Die());
EXPECT_TRUE(send_channel->RemoveSendStream(send_ssrc));
EXPECT_TRUE(recv_channel->RemoveRecvStream(recv_ssrc));
}
// Test behavior when decoder factory fails to create a decoder (returns null).
TEST(WebRtcVideoEngineNewVideoCodecFactoryTest, NullDecoder) {
// |engine| take ownership of the factories.
webrtc::MockVideoEncoderFactory* encoder_factory =
new webrtc::MockVideoEncoderFactory();
webrtc::MockVideoDecoderFactory* decoder_factory =
new webrtc::MockVideoDecoderFactory();
webrtc::MockVideoBitrateAllocatorFactory* rate_allocator_factory =
new webrtc::MockVideoBitrateAllocatorFactory();
WebRtcVideoEngine engine(
(std::unique_ptr<webrtc::VideoEncoderFactory>(encoder_factory)),
(std::unique_ptr<webrtc::VideoDecoderFactory>(decoder_factory)),
(std::unique_ptr<webrtc::VideoBitrateAllocatorFactory>(
rate_allocator_factory)));
const webrtc::SdpVideoFormat vp8_format("VP8");
const std::vector<webrtc::SdpVideoFormat> supported_formats = {vp8_format};
EXPECT_CALL(*encoder_factory, GetSupportedFormats())
.WillRepeatedly(testing::Return(supported_formats));
// Decoder creation fails.
EXPECT_CALL(*decoder_factory, CreateVideoDecoderProxy(testing::_))
.WillOnce(testing::Return(nullptr));
// Create a call.
webrtc::RtcEventLogNullImpl event_log;
std::unique_ptr<webrtc::Call> call(
webrtc::Call::Create(webrtc::Call::Config(&event_log)));
// Create recv channel.
const int recv_ssrc = 321;
std::unique_ptr<VideoMediaChannel> recv_channel(engine.CreateMediaChannel(
call.get(), GetMediaConfig(), VideoOptions(), webrtc::CryptoOptions()));
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(engine.codecs().front());
EXPECT_TRUE(recv_channel->SetRecvParameters(recv_parameters));
EXPECT_TRUE(recv_channel->AddRecvStream(
cricket::StreamParams::CreateLegacy(recv_ssrc)));
// Remove streams previously added to free the encoder and decoder instance.
EXPECT_TRUE(recv_channel->RemoveRecvStream(recv_ssrc));
}
TEST_F(WebRtcVideoEngineTest, DISABLED_RecreatesEncoderOnContentTypeChange) {
encoder_factory_->AddSupportedVideoCodecType("VP8");
std::unique_ptr<FakeCall> fake_call(new FakeCall());
std::unique_ptr<VideoMediaChannel> channel(
SetSendParamsWithAllSupportedCodecs());
ASSERT_TRUE(
channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
cricket::VideoCodec codec = GetEngineCodec("VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
channel->OnReadyToSend(true);
channel->SetSend(true);
ASSERT_TRUE(channel->SetSendParameters(parameters));
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel->SetVideoSend(kSsrc, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_TRUE(encoder_factory_->WaitForCreatedVideoEncoders(1));
EXPECT_EQ(webrtc::VideoCodecMode::kRealtimeVideo,
encoder_factory_->encoders().back()->GetCodecSettings().mode);
EXPECT_TRUE(channel->SetVideoSend(kSsrc, &options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
// No change in content type, keep current encoder.
EXPECT_EQ(1, encoder_factory_->GetNumCreatedEncoders());
options.is_screencast.emplace(true);
EXPECT_TRUE(channel->SetVideoSend(kSsrc, &options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
// Change to screen content, recreate encoder. For the simulcast encoder
// adapter case, this will result in two calls since InitEncode triggers a
// a new instance.
ASSERT_TRUE(encoder_factory_->WaitForCreatedVideoEncoders(2));
EXPECT_EQ(webrtc::VideoCodecMode::kScreensharing,
encoder_factory_->encoders().back()->GetCodecSettings().mode);
EXPECT_TRUE(channel->SetVideoSend(kSsrc, &options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
// Still screen content, no need to update encoder.
EXPECT_EQ(2, encoder_factory_->GetNumCreatedEncoders());
options.is_screencast.emplace(false);
options.video_noise_reduction.emplace(false);
EXPECT_TRUE(channel->SetVideoSend(kSsrc, &options, &capturer));
// Change back to regular video content, update encoder. Also change
// a non |is_screencast| option just to verify it doesn't affect recreation.
EXPECT_TRUE(capturer.CaptureFrame());
ASSERT_TRUE(encoder_factory_->WaitForCreatedVideoEncoders(3));
EXPECT_EQ(webrtc::VideoCodecMode::kRealtimeVideo,
encoder_factory_->encoders().back()->GetCodecSettings().mode);
// Remove stream previously added to free the external encoder instance.
EXPECT_TRUE(channel->RemoveSendStream(kSsrc));
EXPECT_EQ(0u, encoder_factory_->encoders().size());
}
class WebRtcVideoChannelBaseTest : public testing::Test {
protected:
WebRtcVideoChannelBaseTest()
: engine_(webrtc::CreateBuiltinVideoEncoderFactory(),
webrtc::CreateBuiltinVideoDecoderFactory(),
webrtc::CreateBuiltinVideoBitrateAllocatorFactory()) {}
virtual void SetUp() {
// One testcase calls SetUp in a loop, only create call_ once.
if (!call_) {
call_.reset(webrtc::Call::Create(webrtc::Call::Config(&event_log_)));
}
cricket::MediaConfig media_config;
// Disabling cpu overuse detection actually disables quality scaling too; it
// implies DegradationPreference kMaintainResolution. Automatic scaling
// needs to be disabled, otherwise, tests which check the size of received
// frames become flaky.
media_config.video.enable_cpu_adaptation = false;
channel_.reset(
static_cast<cricket::WebRtcVideoChannel*>(engine_.CreateMediaChannel(
call_.get(), media_config, cricket::VideoOptions(),
webrtc::CryptoOptions())));
channel_->OnReadyToSend(true);
EXPECT_TRUE(channel_.get() != NULL);
network_interface_.SetDestination(channel_.get());
channel_->SetInterface(&network_interface_, /*media_transport=*/nullptr);
cricket::VideoRecvParameters parameters;
parameters.codecs = engine_.codecs();
channel_->SetRecvParameters(parameters);
EXPECT_TRUE(channel_->AddSendStream(DefaultSendStreamParams()));
video_capturer_.reset(CreateFakeVideoCapturer());
cricket::VideoFormat format(640, 480,
cricket::VideoFormat::FpsToInterval(kFramerate),
cricket::FOURCC_I420);
EXPECT_EQ(cricket::CS_RUNNING, video_capturer_->Start(format));
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, nullptr, video_capturer_.get()));
}
virtual cricket::FakeVideoCapturerWithTaskQueue* CreateFakeVideoCapturer() {
return new cricket::FakeVideoCapturerWithTaskQueue();
}
// Utility method to setup an additional stream to send and receive video.
// Used to test send and recv between two streams.
void SetUpSecondStream() {
SetUpSecondStreamWithNoRecv();
// Setup recv for second stream.
EXPECT_TRUE(channel_->AddRecvStream(
cricket::StreamParams::CreateLegacy(kSsrc + 2)));
// Make the second renderer available for use by a new stream.
EXPECT_TRUE(channel_->SetSink(kSsrc + 2, &renderer2_));
}
// Setup an additional stream just to send video. Defer add recv stream.
// This is required if you want to test unsignalled recv of video rtp packets.
void SetUpSecondStreamWithNoRecv() {
// SetUp() already added kSsrc make sure duplicate SSRCs cant be added.
EXPECT_TRUE(
channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
EXPECT_TRUE(channel_->SetSink(kSsrc, &renderer_));
EXPECT_FALSE(
channel_->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
EXPECT_TRUE(channel_->AddSendStream(
cricket::StreamParams::CreateLegacy(kSsrc + 2)));
// We dont add recv for the second stream.
// Setup the receive and renderer for second stream after send.
video_capturer_2_.reset(CreateFakeVideoCapturer());
cricket::VideoFormat format(640, 480,
cricket::VideoFormat::FpsToInterval(kFramerate),
cricket::FOURCC_I420);
EXPECT_EQ(cricket::CS_RUNNING, video_capturer_2_->Start(format));
EXPECT_TRUE(
channel_->SetVideoSend(kSsrc + 2, nullptr, video_capturer_2_.get()));
}
virtual void TearDown() { channel_.reset(); }
bool SetDefaultCodec() { return SetOneCodec(DefaultCodec()); }
bool SetOneCodec(const cricket::VideoCodec& codec) {
cricket::VideoFormat capture_format(
kVideoWidth, kVideoHeight,
cricket::VideoFormat::FpsToInterval(kFramerate), cricket::FOURCC_I420);
if (video_capturer_) {
EXPECT_EQ(cricket::CS_RUNNING, video_capturer_->Start(capture_format));
}
if (video_capturer_2_) {
EXPECT_EQ(cricket::CS_RUNNING, video_capturer_2_->Start(capture_format));
}
bool sending = channel_->sending();
bool success = SetSend(false);
if (success) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
success = channel_->SetSendParameters(parameters);
}
if (success) {
success = SetSend(sending);
}
return success;
}
bool SetSend(bool send) { return channel_->SetSend(send); }
bool SendFrame() {
if (video_capturer_2_) {
video_capturer_2_->CaptureFrame();
}
return video_capturer_.get() && video_capturer_->CaptureFrame();
}
bool WaitAndSendFrame(int wait_ms) {
bool ret = rtc::Thread::Current()->ProcessMessages(wait_ms);
ret &= SendFrame();
return ret;
}
int NumRtpBytes() { return network_interface_.NumRtpBytes(); }
int NumRtpBytes(uint32_t ssrc) {
return network_interface_.NumRtpBytes(ssrc);
}
int NumRtpPackets() { return network_interface_.NumRtpPackets(); }
int NumRtpPackets(uint32_t ssrc) {
return network_interface_.NumRtpPackets(ssrc);
}
int NumSentSsrcs() { return network_interface_.NumSentSsrcs(); }
const rtc::CopyOnWriteBuffer* GetRtpPacket(int index) {
return network_interface_.GetRtpPacket(index);
}
static int GetPayloadType(const rtc::CopyOnWriteBuffer* p) {
webrtc::RTPHeader header;
EXPECT_TRUE(ParseRtpPacket(p, &header));
return header.payloadType;
}
static bool ParseRtpPacket(const rtc::CopyOnWriteBuffer* p,
webrtc::RTPHeader* header) {
std::unique_ptr<webrtc::RtpHeaderParser> parser(
webrtc::RtpHeaderParser::Create());
return parser->Parse(p->cdata(), p->size(), header);
}
// Tests that we can send and receive frames.
void SendAndReceive(const cricket::VideoCodec& codec) {
EXPECT_TRUE(SetOneCodec(codec));
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_));
EXPECT_EQ(0, renderer_.num_rendered_frames());
EXPECT_TRUE(SendFrame());
EXPECT_FRAME_WAIT(1, kVideoWidth, kVideoHeight, kTimeout);
std::unique_ptr<const rtc::CopyOnWriteBuffer> p(GetRtpPacket(0));
EXPECT_EQ(codec.id, GetPayloadType(p.get()));
}
void SendReceiveManyAndGetStats(const cricket::VideoCodec& codec,
int duration_sec,
int fps) {
EXPECT_TRUE(SetOneCodec(codec));
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_));
EXPECT_EQ(0, renderer_.num_rendered_frames());
for (int i = 0; i < duration_sec; ++i) {
for (int frame = 1; frame <= fps; ++frame) {
EXPECT_TRUE(WaitAndSendFrame(1000 / fps));
EXPECT_FRAME_WAIT(frame + i * fps, kVideoWidth, kVideoHeight, kTimeout);
}
}
std::unique_ptr<const rtc::CopyOnWriteBuffer> p(GetRtpPacket(0));
EXPECT_EQ(codec.id, GetPayloadType(p.get()));
}
cricket::VideoSenderInfo GetSenderStats(size_t i) {
cricket::VideoMediaInfo info;
EXPECT_TRUE(channel_->GetStats(&info));
return info.senders[i];
}
cricket::VideoReceiverInfo GetReceiverStats(size_t i) {
cricket::VideoMediaInfo info;
EXPECT_TRUE(channel_->GetStats(&info));
return info.receivers[i];
}
// Two streams one channel tests.
// Tests that we can send and receive frames.
void TwoStreamsSendAndReceive(const cricket::VideoCodec& codec) {
SetUpSecondStream();
// Test sending and receiving on first stream.
SendAndReceive(codec);
// Test sending and receiving on second stream.
EXPECT_EQ_WAIT(1, renderer2_.num_rendered_frames(), kTimeout);
EXPECT_GT(NumRtpPackets(), 0);
EXPECT_EQ(1, renderer2_.num_rendered_frames());
}
cricket::VideoCodec GetEngineCodec(const std::string& name) {
for (const cricket::VideoCodec& engine_codec : engine_.codecs()) {
if (absl::EqualsIgnoreCase(name, engine_codec.name))
return engine_codec;
}
// This point should never be reached.
ADD_FAILURE() << "Unrecognized codec name: " << name;
return cricket::VideoCodec();
}
cricket::VideoCodec DefaultCodec() { return GetEngineCodec("VP8"); }
cricket::StreamParams DefaultSendStreamParams() {
return cricket::StreamParams::CreateLegacy(kSsrc);
}
webrtc::RtcEventLogNullImpl event_log_;
std::unique_ptr<webrtc::Call> call_;
WebRtcVideoEngine engine_;
std::unique_ptr<cricket::FakeVideoCapturerWithTaskQueue> video_capturer_;
std::unique_ptr<cricket::FakeVideoCapturerWithTaskQueue> video_capturer_2_;
std::unique_ptr<WebRtcVideoChannel> channel_;
cricket::FakeNetworkInterface network_interface_;
cricket::FakeVideoRenderer renderer_;
// Used by test cases where 2 streams are run on the same channel.
cricket::FakeVideoRenderer renderer2_;
};
// Test that SetSend works.
TEST_F(WebRtcVideoChannelBaseTest, SetSend) {
EXPECT_FALSE(channel_->sending());
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, nullptr, video_capturer_.get()));
EXPECT_TRUE(SetOneCodec(DefaultCodec()));
EXPECT_FALSE(channel_->sending());
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(channel_->sending());
EXPECT_TRUE(SendFrame());
EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout);
EXPECT_TRUE(SetSend(false));
EXPECT_FALSE(channel_->sending());
}
// Test that SetSend fails without codecs being set.
TEST_F(WebRtcVideoChannelBaseTest, SetSendWithoutCodecs) {
EXPECT_FALSE(channel_->sending());
EXPECT_FALSE(SetSend(true));
EXPECT_FALSE(channel_->sending());
}
// Test that we properly set the send and recv buffer sizes by the time
// SetSend is called.
TEST_F(WebRtcVideoChannelBaseTest, SetSendSetsTransportBufferSizes) {
EXPECT_TRUE(SetOneCodec(DefaultCodec()));
EXPECT_TRUE(SetSend(true));
EXPECT_EQ(64 * 1024, network_interface_.sendbuf_size());
EXPECT_EQ(256 * 1024, network_interface_.recvbuf_size());
}
// Test that stats work properly for a 1-1 call.
TEST_F(WebRtcVideoChannelBaseTest, GetStats) {
const int kDurationSec = 3;
const int kFps = 10;
SendReceiveManyAndGetStats(DefaultCodec(), kDurationSec, kFps);
cricket::VideoMediaInfo info;
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
// TODO(whyuan): bytes_sent and bytes_rcvd are different. Are both payload?
// For webrtc, bytes_sent does not include the RTP header length.
EXPECT_GT(info.senders[0].bytes_sent, 0);
EXPECT_EQ(NumRtpPackets(), info.senders[0].packets_sent);
EXPECT_EQ(0.0, info.senders[0].fraction_lost);
ASSERT_TRUE(info.senders[0].codec_payload_type);
EXPECT_EQ(DefaultCodec().id, *info.senders[0].codec_payload_type);
EXPECT_EQ(0, info.senders[0].firs_rcvd);
EXPECT_EQ(0, info.senders[0].plis_rcvd);
EXPECT_EQ(0, info.senders[0].nacks_rcvd);
EXPECT_EQ(kVideoWidth, info.senders[0].send_frame_width);
EXPECT_EQ(kVideoHeight, info.senders[0].send_frame_height);
EXPECT_GT(info.senders[0].framerate_input, 0);
EXPECT_GT(info.senders[0].framerate_sent, 0);
EXPECT_EQ(1U, info.send_codecs.count(DefaultCodec().id));
EXPECT_EQ(DefaultCodec().ToCodecParameters(),
info.send_codecs[DefaultCodec().id]);
ASSERT_EQ(1U, info.receivers.size());
EXPECT_EQ(1U, info.senders[0].ssrcs().size());
EXPECT_EQ(1U, info.receivers[0].ssrcs().size());
EXPECT_EQ(info.senders[0].ssrcs()[0], info.receivers[0].ssrcs()[0]);
ASSERT_TRUE(info.receivers[0].codec_payload_type);
EXPECT_EQ(DefaultCodec().id, *info.receivers[0].codec_payload_type);
EXPECT_EQ(NumRtpBytes(), info.receivers[0].bytes_rcvd);
EXPECT_EQ(NumRtpPackets(), info.receivers[0].packets_rcvd);
EXPECT_EQ(0.0, info.receivers[0].fraction_lost);
EXPECT_EQ(0, info.receivers[0].packets_lost);
// TODO(asapersson): Not set for webrtc. Handle missing stats.
// EXPECT_EQ(0, info.receivers[0].packets_concealed);
EXPECT_EQ(0, info.receivers[0].firs_sent);
EXPECT_EQ(0, info.receivers[0].plis_sent);
EXPECT_EQ(0, info.receivers[0].nacks_sent);
EXPECT_EQ(kVideoWidth, info.receivers[0].frame_width);
EXPECT_EQ(kVideoHeight, info.receivers[0].frame_height);
EXPECT_GT(info.receivers[0].framerate_rcvd, 0);
EXPECT_GT(info.receivers[0].framerate_decoded, 0);
EXPECT_GT(info.receivers[0].framerate_output, 0);
EXPECT_EQ(1U, info.receive_codecs.count(DefaultCodec().id));
EXPECT_EQ(DefaultCodec().ToCodecParameters(),
info.receive_codecs[DefaultCodec().id]);
}
// Test that stats work properly for a conf call with multiple recv streams.
TEST_F(WebRtcVideoChannelBaseTest, GetStatsMultipleRecvStreams) {
cricket::FakeVideoRenderer renderer1, renderer2;
EXPECT_TRUE(SetOneCodec(DefaultCodec()));
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(DefaultCodec());
parameters.conference_mode = true;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(1)));
EXPECT_TRUE(channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(2)));
EXPECT_TRUE(channel_->SetSink(1, &renderer1));
EXPECT_TRUE(channel_->SetSink(2, &renderer2));
EXPECT_EQ(0, renderer1.num_rendered_frames());
EXPECT_EQ(0, renderer2.num_rendered_frames());
std::vector<uint32_t> ssrcs;
ssrcs.push_back(1);
ssrcs.push_back(2);
network_interface_.SetConferenceMode(true, ssrcs);
EXPECT_TRUE(SendFrame());
EXPECT_FRAME_ON_RENDERER_WAIT(renderer1, 1, kVideoWidth, kVideoHeight,
kTimeout);
EXPECT_FRAME_ON_RENDERER_WAIT(renderer2, 1, kVideoWidth, kVideoHeight,
kTimeout);
EXPECT_TRUE(channel_->SetSend(false));
cricket::VideoMediaInfo info;
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
// TODO(whyuan): bytes_sent and bytes_rcvd are different. Are both payload?
// For webrtc, bytes_sent does not include the RTP header length.
EXPECT_GT(GetSenderStats(0).bytes_sent, 0);
EXPECT_EQ_WAIT(NumRtpPackets(), GetSenderStats(0).packets_sent, kTimeout);
EXPECT_EQ(kVideoWidth, GetSenderStats(0).send_frame_width);
EXPECT_EQ(kVideoHeight, GetSenderStats(0).send_frame_height);
ASSERT_EQ(2U, info.receivers.size());
for (size_t i = 0; i < info.receivers.size(); ++i) {
EXPECT_EQ(1U, GetReceiverStats(i).ssrcs().size());
EXPECT_EQ(i + 1, GetReceiverStats(i).ssrcs()[0]);
EXPECT_EQ_WAIT(NumRtpBytes(), GetReceiverStats(i).bytes_rcvd, kTimeout);
EXPECT_EQ_WAIT(NumRtpPackets(), GetReceiverStats(i).packets_rcvd, kTimeout);
EXPECT_EQ_WAIT(kVideoWidth, GetReceiverStats(i).frame_width, kTimeout);
EXPECT_EQ_WAIT(kVideoHeight, GetReceiverStats(i).frame_height, kTimeout);
}
}
// Test that stats work properly for a conf call with multiple send streams.
TEST_F(WebRtcVideoChannelBaseTest, GetStatsMultipleSendStreams) {
// Normal setup; note that we set the SSRC explicitly to ensure that
// it will come first in the senders map.
EXPECT_TRUE(SetOneCodec(DefaultCodec()));
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(DefaultCodec());
parameters.conference_mode = true;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
EXPECT_TRUE(
channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
EXPECT_TRUE(channel_->SetSink(kSsrc, &renderer_));
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(SendFrame());
EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout);
EXPECT_FRAME_WAIT(1, kVideoWidth, kVideoHeight, kTimeout);
// Add an additional capturer, and hook up a renderer to receive it.
cricket::FakeVideoRenderer renderer2;
std::unique_ptr<cricket::FakeVideoCapturerWithTaskQueue> capturer(
CreateFakeVideoCapturer());
const int kTestWidth = 160;
const int kTestHeight = 120;
cricket::VideoFormat format(kTestWidth, kTestHeight,
cricket::VideoFormat::FpsToInterval(5),
cricket::FOURCC_I420);
EXPECT_EQ(cricket::CS_RUNNING, capturer->Start(format));
EXPECT_TRUE(
channel_->AddSendStream(cricket::StreamParams::CreateLegacy(5678)));
EXPECT_TRUE(channel_->SetVideoSend(5678, nullptr, capturer.get()));
EXPECT_TRUE(
channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(5678)));
EXPECT_TRUE(channel_->SetSink(5678, &renderer2));
EXPECT_TRUE(capturer->CaptureCustomFrame(kTestWidth, kTestHeight));
EXPECT_FRAME_ON_RENDERER_WAIT(renderer2, 1, kTestWidth, kTestHeight,
kTimeout);
// Get stats, and make sure they are correct for two senders. We wait until
// the number of expected packets have been sent to avoid races where we
// check stats before it has been updated.
cricket::VideoMediaInfo info;
for (uint32_t i = 0; i < kTimeout; ++i) {
rtc::Thread::Current()->ProcessMessages(1);
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(2U, info.senders.size());
if (info.senders[0].packets_sent + info.senders[1].packets_sent ==
NumRtpPackets()) {
// Stats have been updated for both sent frames, expectations can be
// checked now.
break;
}
}
EXPECT_EQ(NumRtpPackets(),
info.senders[0].packets_sent + info.senders[1].packets_sent)
<< "Timed out while waiting for packet counts for all sent packets.";
EXPECT_EQ(1U, info.senders[0].ssrcs().size());
EXPECT_EQ(1234U, info.senders[0].ssrcs()[0]);
EXPECT_EQ(kVideoWidth, info.senders[0].send_frame_width);
EXPECT_EQ(kVideoHeight, info.senders[0].send_frame_height);
EXPECT_EQ(1U, info.senders[1].ssrcs().size());
EXPECT_EQ(5678U, info.senders[1].ssrcs()[0]);
EXPECT_EQ(kTestWidth, info.senders[1].send_frame_width);
EXPECT_EQ(kTestHeight, info.senders[1].send_frame_height);
// The capturer must be unregistered here as it runs out of it's scope next.
channel_->SetVideoSend(5678, nullptr, nullptr);
}
// Test that we can set the bandwidth.
TEST_F(WebRtcVideoChannelBaseTest, SetSendBandwidth) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(DefaultCodec());
parameters.max_bandwidth_bps = -1; // <= 0 means unlimited.
EXPECT_TRUE(channel_->SetSendParameters(parameters));
parameters.max_bandwidth_bps = 128 * 1024;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
}
// Test that we can set the SSRC for the default send source.
TEST_F(WebRtcVideoChannelBaseTest, SetSendSsrc) {
EXPECT_TRUE(SetDefaultCodec());
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(SendFrame());
EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout);
webrtc::RTPHeader header;
std::unique_ptr<const rtc::CopyOnWriteBuffer> p(GetRtpPacket(0));
EXPECT_TRUE(ParseRtpPacket(p.get(), &header));
EXPECT_EQ(kSsrc, header.ssrc);
// Packets are being paced out, so these can mismatch between the first and
// second call to NumRtpPackets until pending packets are paced out.
EXPECT_EQ_WAIT(NumRtpPackets(), NumRtpPackets(header.ssrc), kTimeout);
EXPECT_EQ_WAIT(NumRtpBytes(), NumRtpBytes(header.ssrc), kTimeout);
EXPECT_EQ(1, NumSentSsrcs());
EXPECT_EQ(0, NumRtpPackets(kSsrc - 1));
EXPECT_EQ(0, NumRtpBytes(kSsrc - 1));
}
// Test that we can set the SSRC even after codecs are set.
TEST_F(WebRtcVideoChannelBaseTest, SetSendSsrcAfterSetCodecs) {
// Remove stream added in Setup.
EXPECT_TRUE(channel_->RemoveSendStream(kSsrc));
EXPECT_TRUE(SetDefaultCodec());
EXPECT_TRUE(
channel_->AddSendStream(cricket::StreamParams::CreateLegacy(999)));
EXPECT_TRUE(channel_->SetVideoSend(999u, nullptr, video_capturer_.get()));
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(WaitAndSendFrame(0));
EXPECT_TRUE_WAIT(NumRtpPackets() > 0, kTimeout);
webrtc::RTPHeader header;
std::unique_ptr<const rtc::CopyOnWriteBuffer> p(GetRtpPacket(0));
EXPECT_TRUE(ParseRtpPacket(p.get(), &header));
EXPECT_EQ(999u, header.ssrc);
// Packets are being paced out, so these can mismatch between the first and
// second call to NumRtpPackets until pending packets are paced out.
EXPECT_EQ_WAIT(NumRtpPackets(), NumRtpPackets(header.ssrc), kTimeout);
EXPECT_EQ_WAIT(NumRtpBytes(), NumRtpBytes(header.ssrc), kTimeout);
EXPECT_EQ(1, NumSentSsrcs());
EXPECT_EQ(0, NumRtpPackets(kSsrc));
EXPECT_EQ(0, NumRtpBytes(kSsrc));
}
// Test that we can set the default video renderer before and after
// media is received.
TEST_F(WebRtcVideoChannelBaseTest, SetSink) {
uint8_t data1[] = {0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
rtc::CopyOnWriteBuffer packet1(data1, sizeof(data1));
rtc::SetBE32(packet1.data() + 8, kSsrc);
channel_->SetSink(kDefaultReceiveSsrc, NULL);
EXPECT_TRUE(SetDefaultCodec());
EXPECT_TRUE(SetSend(true));
EXPECT_EQ(0, renderer_.num_rendered_frames());
channel_->OnPacketReceived(&packet1, /* packet_time_us */ -1);
EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_));
EXPECT_TRUE(SendFrame());
EXPECT_FRAME_WAIT(1, kVideoWidth, kVideoHeight, kTimeout);
}
// Tests setting up and configuring a send stream.
TEST_F(WebRtcVideoChannelBaseTest, AddRemoveSendStreams) {
EXPECT_TRUE(SetOneCodec(DefaultCodec()));
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_));
EXPECT_TRUE(SendFrame());
EXPECT_FRAME_WAIT(1, kVideoWidth, kVideoHeight, kTimeout);
EXPECT_GT(NumRtpPackets(), 0);
webrtc::RTPHeader header;
size_t last_packet = NumRtpPackets() - 1;
std::unique_ptr<const rtc::CopyOnWriteBuffer> p(
GetRtpPacket(static_cast<int>(last_packet)));
EXPECT_TRUE(ParseRtpPacket(p.get(), &header));
EXPECT_EQ(kSsrc, header.ssrc);
// Remove the send stream that was added during Setup.
EXPECT_TRUE(channel_->RemoveSendStream(kSsrc));
int rtp_packets = NumRtpPackets();
EXPECT_TRUE(
channel_->AddSendStream(cricket::StreamParams::CreateLegacy(789u)));
EXPECT_TRUE(channel_->SetVideoSend(789u, nullptr, video_capturer_.get()));
EXPECT_EQ(rtp_packets, NumRtpPackets());
// Wait 30ms to guarantee the engine does not drop the frame.
EXPECT_TRUE(WaitAndSendFrame(30));
EXPECT_TRUE_WAIT(NumRtpPackets() > rtp_packets, kTimeout);
last_packet = NumRtpPackets() - 1;
p.reset(GetRtpPacket(static_cast<int>(last_packet)));
EXPECT_TRUE(ParseRtpPacket(p.get(), &header));
EXPECT_EQ(789u, header.ssrc);
}
// Tests the behavior of incoming streams in a conference scenario.
TEST_F(WebRtcVideoChannelBaseTest, SimulateConference) {
cricket::FakeVideoRenderer renderer1, renderer2;
EXPECT_TRUE(SetDefaultCodec());
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(DefaultCodec());
parameters.conference_mode = true;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(1)));
EXPECT_TRUE(channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(2)));
EXPECT_TRUE(channel_->SetSink(1, &renderer1));
EXPECT_TRUE(channel_->SetSink(2, &renderer2));
EXPECT_EQ(0, renderer1.num_rendered_frames());
EXPECT_EQ(0, renderer2.num_rendered_frames());
std::vector<uint32_t> ssrcs;
ssrcs.push_back(1);
ssrcs.push_back(2);
network_interface_.SetConferenceMode(true, ssrcs);
EXPECT_TRUE(SendFrame());
EXPECT_FRAME_ON_RENDERER_WAIT(renderer1, 1, kVideoWidth, kVideoHeight,
kTimeout);
EXPECT_FRAME_ON_RENDERER_WAIT(renderer2, 1, kVideoWidth, kVideoHeight,
kTimeout);
std::unique_ptr<const rtc::CopyOnWriteBuffer> p(GetRtpPacket(0));
EXPECT_EQ(DefaultCodec().id, GetPayloadType(p.get()));
EXPECT_EQ(kVideoWidth, renderer1.width());
EXPECT_EQ(kVideoHeight, renderer1.height());
EXPECT_EQ(kVideoWidth, renderer2.width());
EXPECT_EQ(kVideoHeight, renderer2.height());
EXPECT_TRUE(channel_->RemoveRecvStream(2));
EXPECT_TRUE(channel_->RemoveRecvStream(1));
}
// Tests that we can add and remove capturers and frames are sent out properly
TEST_F(WebRtcVideoChannelBaseTest, DISABLED_AddRemoveCapturer) {
using cricket::VideoCodec;
using cricket::VideoOptions;
using cricket::VideoFormat;
using cricket::FOURCC_I420;
VideoCodec codec = DefaultCodec();
const int time_between_send_ms = VideoFormat::FpsToInterval(kFramerate);
EXPECT_TRUE(SetOneCodec(codec));
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_));
EXPECT_EQ(0, renderer_.num_rendered_frames());
EXPECT_TRUE(SendFrame());
EXPECT_FRAME_WAIT(1, kVideoWidth, kVideoHeight, kTimeout);
std::unique_ptr<cricket::FakeVideoCapturerWithTaskQueue> capturer(
CreateFakeVideoCapturer());
// TODO(nisse): This testcase fails if we don't configure
// screencast. It's unclear why, I see nothing obvious in this
// test which is related to screencast logic.
VideoOptions video_options;
video_options.is_screencast = true;
channel_->SetVideoSend(kSsrc, &video_options, nullptr);
VideoFormat format(480, 360, VideoFormat::FpsToInterval(30), FOURCC_I420);
EXPECT_EQ(cricket::CS_RUNNING, capturer->Start(format));
// All capturers start generating frames with the same timestamp. ViE does
// not allow the same timestamp to be used. Capture one frame before
// associating the capturer with the channel.
EXPECT_TRUE(capturer->CaptureCustomFrame(format.width, format.height));
int captured_frames = 1;
for (int iterations = 0; iterations < 2; ++iterations) {
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, nullptr, capturer.get()));
rtc::Thread::Current()->ProcessMessages(time_between_send_ms);
EXPECT_TRUE(capturer->CaptureCustomFrame(format.width, format.height));
++captured_frames;
// Wait until frame of right size is captured.
EXPECT_TRUE_WAIT(renderer_.num_rendered_frames() >= captured_frames &&
format.width == renderer_.width() &&
format.height == renderer_.height() &&
!renderer_.black_frame(),
kTimeout);
EXPECT_GE(renderer_.num_rendered_frames(), captured_frames);
EXPECT_EQ(format.width, renderer_.width());
EXPECT_EQ(format.height, renderer_.height());
captured_frames = renderer_.num_rendered_frames() + 1;
EXPECT_FALSE(renderer_.black_frame());
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, nullptr, nullptr));
// Make sure a black frame is generated within the specified timeout.
// The black frame should be the resolution of the previous frame to
// prevent expensive encoder reconfigurations.
EXPECT_TRUE_WAIT(renderer_.num_rendered_frames() >= captured_frames &&
format.width == renderer_.width() &&
format.height == renderer_.height() &&
renderer_.black_frame(),
kTimeout);
EXPECT_GE(renderer_.num_rendered_frames(), captured_frames);
EXPECT_EQ(format.width, renderer_.width());
EXPECT_EQ(format.height, renderer_.height());
EXPECT_TRUE(renderer_.black_frame());
// The black frame has the same timestamp as the next frame since it's
// timestamp is set to the last frame's timestamp + interval. WebRTC will
// not render a frame with the same timestamp so capture another frame
// with the frame capturer to increment the next frame's timestamp.
EXPECT_TRUE(capturer->CaptureCustomFrame(format.width, format.height));
}
}
// Tests that if SetVideoSend is called with a NULL capturer after the
// capturer was already removed, the application doesn't crash (and no black
// frame is sent).
TEST_F(WebRtcVideoChannelBaseTest, RemoveCapturerWithoutAdd) {
EXPECT_TRUE(SetOneCodec(DefaultCodec()));
EXPECT_TRUE(SetSend(true));
EXPECT_TRUE(channel_->SetSink(kDefaultReceiveSsrc, &renderer_));
EXPECT_EQ(0, renderer_.num_rendered_frames());
EXPECT_TRUE(SendFrame());
EXPECT_FRAME_WAIT(1, kVideoWidth, kVideoHeight, kTimeout);
// Wait for one frame so they don't get dropped because we send frames too
// tightly.
rtc::Thread::Current()->ProcessMessages(30);
// Remove the capturer.
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, nullptr, nullptr));
// No capturer was added, so this SetVideoSend shouldn't do anything.
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, nullptr, nullptr));
rtc::Thread::Current()->ProcessMessages(300);
// Verify no more frames were sent.
EXPECT_EQ(1, renderer_.num_rendered_frames());
}
// Tests that we can add and remove capturer as unique sources.
TEST_F(WebRtcVideoChannelBaseTest, AddRemoveCapturerMultipleSources) {
// WebRTC implementation will drop frames if pushed to quickly. Wait the
// interval time to avoid that.
// WebRTC implementation will drop frames if pushed to quickly. Wait the
// interval time to avoid that.
// Set up the stream associated with the engine.
EXPECT_TRUE(
channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
EXPECT_TRUE(channel_->SetSink(kSsrc, &renderer_));
cricket::VideoFormat capture_format(
kVideoWidth, kVideoHeight,
cricket::VideoFormat::FpsToInterval(kFramerate), cricket::FOURCC_I420);
// Set up additional stream 1.
cricket::FakeVideoRenderer renderer1;
EXPECT_FALSE(channel_->SetSink(1, &renderer1));
EXPECT_TRUE(channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(1)));
EXPECT_TRUE(channel_->SetSink(1, &renderer1));
EXPECT_TRUE(channel_->AddSendStream(cricket::StreamParams::CreateLegacy(1)));
std::unique_ptr<cricket::FakeVideoCapturerWithTaskQueue> capturer1(
CreateFakeVideoCapturer());
EXPECT_EQ(cricket::CS_RUNNING, capturer1->Start(capture_format));
// Set up additional stream 2.
cricket::FakeVideoRenderer renderer2;
EXPECT_FALSE(channel_->SetSink(2, &renderer2));
EXPECT_TRUE(channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(2)));
EXPECT_TRUE(channel_->SetSink(2, &renderer2));
EXPECT_TRUE(channel_->AddSendStream(cricket::StreamParams::CreateLegacy(2)));
std::unique_ptr<cricket::FakeVideoCapturerWithTaskQueue> capturer2(
CreateFakeVideoCapturer());
EXPECT_EQ(cricket::CS_RUNNING, capturer2->Start(capture_format));
// State for all the streams.
EXPECT_TRUE(SetOneCodec(DefaultCodec()));
// A limitation in the lmi implementation requires that SetVideoSend() is
// called after SetOneCodec().
// TODO(hellner): this seems like an unnecessary constraint, fix it.
EXPECT_TRUE(channel_->SetVideoSend(1, nullptr, capturer1.get()));
EXPECT_TRUE(channel_->SetVideoSend(2, nullptr, capturer2.get()));
EXPECT_TRUE(SetSend(true));
// Test capturer associated with engine.
const int kTestWidth = 160;
const int kTestHeight = 120;
EXPECT_TRUE(capturer1->CaptureCustomFrame(kTestWidth, kTestHeight));
EXPECT_FRAME_ON_RENDERER_WAIT(renderer1, 1, kTestWidth, kTestHeight,
kTimeout);
// Capture a frame with additional capturer2, frames should be received
EXPECT_TRUE(capturer2->CaptureCustomFrame(kTestWidth, kTestHeight));
EXPECT_FRAME_ON_RENDERER_WAIT(renderer2, 1, kTestWidth, kTestHeight,
kTimeout);
// Successfully remove the capturer.
EXPECT_TRUE(channel_->SetVideoSend(kSsrc, nullptr, nullptr));
// The capturers must be unregistered here as it runs out of it's scope
// next.
EXPECT_TRUE(channel_->SetVideoSend(1, nullptr, nullptr));
EXPECT_TRUE(channel_->SetVideoSend(2, nullptr, nullptr));
}
// Tests empty StreamParams is rejected.
TEST_F(WebRtcVideoChannelBaseTest, RejectEmptyStreamParams) {
// Remove the send stream that was added during Setup.
EXPECT_TRUE(channel_->RemoveSendStream(kSsrc));
cricket::StreamParams empty;
EXPECT_FALSE(channel_->AddSendStream(empty));
EXPECT_TRUE(
channel_->AddSendStream(cricket::StreamParams::CreateLegacy(789u)));
}
// Test that multiple send streams can be created and deleted properly.
TEST_F(WebRtcVideoChannelBaseTest, MultipleSendStreams) {
// Remove stream added in Setup. I.e. remove stream corresponding to default
// channel.
EXPECT_TRUE(channel_->RemoveSendStream(kSsrc));
const unsigned int kSsrcsSize = sizeof(kSsrcs4) / sizeof(kSsrcs4[0]);
for (unsigned int i = 0; i < kSsrcsSize; ++i) {
EXPECT_TRUE(channel_->AddSendStream(
cricket::StreamParams::CreateLegacy(kSsrcs4[i])));
}
// Delete one of the non default channel streams, let the destructor delete
// the remaining ones.
EXPECT_TRUE(channel_->RemoveSendStream(kSsrcs4[kSsrcsSize - 1]));
// Stream should already be deleted.
EXPECT_FALSE(channel_->RemoveSendStream(kSsrcs4[kSsrcsSize - 1]));
}
TEST_F(WebRtcVideoChannelBaseTest, SendAndReceiveVp8Vga) {
SendAndReceive(GetEngineCodec("VP8"));
}
TEST_F(WebRtcVideoChannelBaseTest, SendAndReceiveVp8Qvga) {
SendAndReceive(GetEngineCodec("VP8"));
}
TEST_F(WebRtcVideoChannelBaseTest, SendAndReceiveVp8SvcQqvga) {
SendAndReceive(GetEngineCodec("VP8"));
}
TEST_F(WebRtcVideoChannelBaseTest, 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 = GetEngineCodec("VP8");
codec.params[kCodecParamStartBitrate] = "1000000";
TwoStreamsSendAndReceive(codec);
}
class WebRtcVideoChannelTest : public WebRtcVideoEngineTest {
public:
WebRtcVideoChannelTest() : WebRtcVideoChannelTest("") {}
explicit WebRtcVideoChannelTest(const char* field_trials)
: WebRtcVideoEngineTest(field_trials), last_ssrc_(0) {}
void SetUp() override {
encoder_factory_->AddSupportedVideoCodecType("VP8");
encoder_factory_->AddSupportedVideoCodecType("VP9");
#if defined(WEBRTC_USE_H264)
encoder_factory_->AddSupportedVideoCodecType("H264");
#endif
fake_call_.reset(new FakeCall());
channel_.reset(engine_.CreateMediaChannel(fake_call_.get(),
GetMediaConfig(), VideoOptions(),
webrtc::CryptoOptions()));
channel_->OnReadyToSend(true);
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) {
ExpectSetBitrateParameters(expected_min_bitrate_bps,
expected_start_bitrate_bps,
expected_max_bitrate_bps);
auto& codecs = send_parameters_.codecs;
codecs.clear();
codecs.push_back(GetEngineCodec("VP8"));
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_));
}
void ExpectSetBitrateParameters(int min_bitrate_bps,
int start_bitrate_bps,
int max_bitrate_bps) {
EXPECT_CALL(
*fake_call_->GetMockTransportControllerSend(),
SetSdpBitrateParameters(AllOf(
Field(&BitrateConstraints::min_bitrate_bps, min_bitrate_bps),
Field(&BitrateConstraints::start_bitrate_bps, start_bitrate_bps),
Field(&BitrateConstraints::max_bitrate_bps, max_bitrate_bps))));
}
void ExpectSetMaxBitrate(int max_bitrate_bps) {
EXPECT_CALL(*fake_call_->GetMockTransportControllerSend(),
SetSdpBitrateParameters(Field(
&BitrateConstraints::max_bitrate_bps, max_bitrate_bps)));
}
void TestExtmapAllowMixedCaller(bool extmap_allow_mixed) {
// For a caller, the answer will be applied in set remote description
// where SetSendParameters() is called.
EXPECT_TRUE(
channel_->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
send_parameters_.extmap_allow_mixed = extmap_allow_mixed;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
const webrtc::VideoSendStream::Config& config =
fake_call_->GetVideoSendStreams()[0]->GetConfig();
EXPECT_EQ(extmap_allow_mixed, config.rtp.extmap_allow_mixed);
}
void TestExtmapAllowMixedCallee(bool extmap_allow_mixed) {
// For a callee, the answer will be applied in set local description
// where SetExtmapAllowMixed() and AddSendStream() are called.
channel_->SetExtmapAllowMixed(extmap_allow_mixed);
EXPECT_TRUE(
channel_->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
const webrtc::VideoSendStream::Config& config =
fake_call_->GetVideoSendStreams()[0]->GetConfig();
EXPECT_EQ(extmap_allow_mixed, config.rtp.extmap_allow_mixed);
}
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 TestDegradationPreference(bool resolution_scaling_enabled,
bool fps_scaling_enabled);
void TestCpuAdaptation(bool enable_overuse, bool is_screenshare);
void TestReceiverLocalSsrcConfiguration(bool receiver_first);
void TestReceiveUnsignaledSsrcPacket(uint8_t payload_type,
bool expect_created_receive_stream);
FakeVideoSendStream* SetDenoisingOption(
uint32_t ssrc,
FakeVideoCapturerWithTaskQueue* capturer,
bool enabled) {
cricket::VideoOptions options;
options.video_noise_reduction = enabled;
EXPECT_TRUE(channel_->SetVideoSend(ssrc, &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() {
std::vector<FakeVideoSendStream*> streams =
fake_call_->GetVideoSendStreams();
EXPECT_EQ(1u, streams.size());
FakeVideoSendStream* stream = streams[streams.size() - 1];
EXPECT_EQ(1u, stream->GetEncoderConfig().number_of_streams);
return stream->GetVideoStreams()[0].max_bitrate_bps;
}
void SetAndExpectMaxBitrate(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).ok());
// 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());
}
// Values from kSimulcastConfigs in simulcast.cc.
const std::vector<webrtc::VideoStream> GetSimulcastBitrates720p() const {
std::vector<webrtc::VideoStream> layers(3);
layers[0].min_bitrate_bps = 30000;
layers[0].target_bitrate_bps = 150000;
layers[0].max_bitrate_bps = 200000;
layers[1].min_bitrate_bps = 150000;
layers[1].target_bitrate_bps = 500000;
layers[1].max_bitrate_bps = 700000;
layers[2].min_bitrate_bps = 600000;
layers[2].target_bitrate_bps = 2500000;
layers[2].max_bitrate_bps = 2500000;
return layers;
}
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(WebRtcVideoChannelTest, SetsSyncGroupFromSyncLabel) {
const uint32_t kVideoSsrc = 123;
const std::string kSyncLabel = "AvSyncLabel";
cricket::StreamParams sp = cricket::StreamParams::CreateLegacy(kVideoSsrc);
sp.set_stream_ids({kSyncLabel});
EXPECT_TRUE(channel_->AddRecvStream(sp));
EXPECT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
EXPECT_EQ(kSyncLabel,
fake_call_->GetVideoReceiveStreams()[0]->GetConfig().sync_group)
<< "SyncGroup should be set based on sync_label";
}
TEST_F(WebRtcVideoChannelTest, 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_associated_payload_types.empty());
EXPECT_TRUE(VerifyRtxReceiveAssociations(recv_stream->GetConfig()))
<< "RTX should be mapped for all decoders/payload types.";
EXPECT_TRUE(HasRtxReceiveAssociation(recv_stream->GetConfig(),
GetEngineCodec("red").id))
<< "RTX should be mapped for the RED payload type";
EXPECT_EQ(rtx_ssrcs[0], recv_stream->GetConfig().rtp.rtx_ssrc);
}
TEST_F(WebRtcVideoChannelTest, 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_ssrc);
EXPECT_TRUE(VerifyRtxReceiveAssociations(recv_stream->GetConfig()))
<< "RTX should be mapped for all decoders/payload types.";
EXPECT_TRUE(HasRtxReceiveAssociation(recv_stream->GetConfig(),
GetEngineCodec("red").id))
<< "RTX should be mapped for the RED payload type";
}
TEST_F(WebRtcVideoChannelTest, RecvStreamNoRtx) {
// Setup one channel without an associated RTX stream.
cricket::StreamParams params =
cricket::StreamParams::CreateLegacy(kSsrcs1[0]);
FakeVideoReceiveStream* recv_stream = AddRecvStream(params);
ASSERT_EQ(0U, recv_stream->GetConfig().rtp.rtx_ssrc);
}
// Test propagation of extmap allow mixed setting.
TEST_F(WebRtcVideoChannelTest, SetExtmapAllowMixedAsCaller) {
TestExtmapAllowMixedCaller(/*extmap_allow_mixed=*/true);
}
TEST_F(WebRtcVideoChannelTest, SetExtmapAllowMixedDisabledAsCaller) {
TestExtmapAllowMixedCaller(/*extmap_allow_mixed=*/false);
}
TEST_F(WebRtcVideoChannelTest, SetExtmapAllowMixedAsCallee) {
TestExtmapAllowMixedCallee(/*extmap_allow_mixed=*/true);
}
TEST_F(WebRtcVideoChannelTest, SetExtmapAllowMixedDisabledAsCallee) {
TestExtmapAllowMixedCallee(/*extmap_allow_mixed=*/false);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, SendRtpTimestampOffsetHeaderExtensions) {
TestSetSendRtpHeaderExtensions(RtpExtension::kTimestampOffsetUri);
}
TEST_F(WebRtcVideoChannelTest, RecvRtpTimestampOffsetHeaderExtensions) {
TestSetRecvRtpHeaderExtensions(RtpExtension::kTimestampOffsetUri);
}
// Test support for absolute send time header extension.
TEST_F(WebRtcVideoChannelTest, SendAbsoluteSendTimeHeaderExtensions) {
TestSetSendRtpHeaderExtensions(RtpExtension::kAbsSendTimeUri);
}
TEST_F(WebRtcVideoChannelTest, RecvAbsoluteSendTimeHeaderExtensions) {
TestSetRecvRtpHeaderExtensions(RtpExtension::kAbsSendTimeUri);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, FiltersExtensionsPicksAbsSendTime) {
// Enable two redundant extensions.
std::vector<std::string> extensions;
extensions.push_back(RtpExtension::kAbsSendTimeUri);
extensions.push_back(RtpExtension::kTimestampOffsetUri);
TestExtensionFilter(extensions, RtpExtension::kAbsSendTimeUri);
}
// Test support for transport sequence number header extension.
TEST_F(WebRtcVideoChannelTest, SendTransportSequenceNumberHeaderExtensions) {
TestSetSendRtpHeaderExtensions(RtpExtension::kTransportSequenceNumberUri);
}
TEST_F(WebRtcVideoChannelTest, RecvTransportSequenceNumberHeaderExtensions) {
TestSetRecvRtpHeaderExtensions(RtpExtension::kTransportSequenceNumberUri);
}
// Test support for video rotation header extension.
TEST_F(WebRtcVideoChannelTest, SendVideoRotationHeaderExtensions) {
TestSetSendRtpHeaderExtensions(RtpExtension::kVideoRotationUri);
}
TEST_F(WebRtcVideoChannelTest, RecvVideoRotationHeaderExtensions) {
TestSetRecvRtpHeaderExtensions(RtpExtension::kVideoRotationUri);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest,
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(WebRtcVideoChannelTest,
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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, AddRecvStreamOnlyUsesOneReceiveStream) {
EXPECT_TRUE(channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(1)));
EXPECT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
}
TEST_F(WebRtcVideoChannelTest, RtcpIsCompoundByDefault) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_EQ(webrtc::RtcpMode::kCompound, stream->GetConfig().rtp.rtcp_mode);
}
TEST_F(WebRtcVideoChannelTest, RembIsEnabledByDefault) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_TRUE(stream->GetConfig().rtp.remb);
}
TEST_F(WebRtcVideoChannelTest, TransportCcIsEnabledByDefault) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_TRUE(stream->GetConfig().rtp.transport_cc);
}
TEST_F(WebRtcVideoChannelTest, 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(RemoveFeedbackParams(GetEngineCodec("VP8")));
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(WebRtcVideoChannelTest, 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(RemoveFeedbackParams(GetEngineCodec("VP8")));
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(WebRtcVideoChannelTest, NackIsEnabledByDefault) {
AssignDefaultCodec();
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(WebRtcVideoChannelTest, 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(RemoveFeedbackParams(GetEngineCodec("VP8")));
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(WebRtcVideoChannelTest, ReconfiguresEncodersWhenNotSending) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
channel_->SetSend(false);
FakeVideoSendStream* stream = AddSendStream();
// No frames entered.
std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
EXPECT_EQ(0u, streams[0].width);
EXPECT_EQ(0u, streams[0].height);
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, &capturer));
VideoFormat capture_format = capturer.GetSupportedFormats()->front();
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(capture_format));
EXPECT_TRUE(capturer.CaptureFrame());
// Frame entered, should be reconfigured to new dimensions.
streams = stream->GetVideoStreams();
EXPECT_EQ(rtc::checked_cast<size_t>(capture_format.width), streams[0].width);
EXPECT_EQ(rtc::checked_cast<size_t>(capture_format.height),
streams[0].height);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, UsesCorrectSettingsForScreencast) {
static const int kScreenshareMinBitrateKbps = 800;
cricket::VideoCodec codec = GetEngineCodec("VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions min_bitrate_options;
min_bitrate_options.screencast_min_bitrate_kbps = kScreenshareMinBitrateKbps;
EXPECT_TRUE(
channel_->SetVideoSend(last_ssrc_, &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().Copy();
EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kRealtimeVideo,
encoder_config.content_type);
std::vector<webrtc::VideoStream> streams = send_stream->GetVideoStreams();
EXPECT_EQ(rtc::checked_cast<size_t>(capture_format_hd.width),
streams.front().width);
EXPECT_EQ(rtc::checked_cast<size_t>(capture_format_hd.height),
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_, nullptr, nullptr));
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
VideoOptions screencast_options;
screencast_options.is_screencast = true;
EXPECT_TRUE(
channel_->SetVideoSend(last_ssrc_, &screencast_options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
// Send stream recreated after option change.
ASSERT_EQ(2, fake_call_->GetNumCreatedSendStreams());
send_stream = fake_call_->GetVideoSendStreams().front();
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
// Verify screencast settings.
encoder_config = send_stream->GetEncoderConfig().Copy();
EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kScreen,
encoder_config.content_type);
EXPECT_EQ(kScreenshareMinBitrateKbps * 1000,
encoder_config.min_transmit_bitrate_bps);
streams = send_stream->GetVideoStreams();
EXPECT_EQ(rtc::checked_cast<size_t>(capture_format_hd.width),
streams.front().width);
EXPECT_EQ(rtc::checked_cast<size_t>(capture_format_hd.height),
streams.front().height);
EXPECT_FALSE(streams[0].num_temporal_layers.has_value());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest,
ConferenceModeScreencastConfiguresTemporalLayer) {
static const int kConferenceScreencastTemporalBitrateBps = 200 * 1000;
send_parameters_.conference_mode = true;
channel_->SetSendParameters(send_parameters_);
AddSendStream();
VideoOptions options;
options.is_screencast = true;
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &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().Copy();
// Verify screencast settings.
encoder_config = send_stream->GetEncoderConfig().Copy();
EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kScreen,
encoder_config.content_type);
std::vector<webrtc::VideoStream> streams = send_stream->GetVideoStreams();
ASSERT_EQ(1u, streams.size());
ASSERT_EQ(2u, streams[0].num_temporal_layers);
EXPECT_EQ(kConferenceScreencastTemporalBitrateBps,
streams[0].target_bitrate_bps);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, SuspendBelowMinBitrateDisabledByDefault) {
FakeVideoSendStream* stream = AddSendStream();
EXPECT_FALSE(stream->GetConfig().suspend_below_min_bitrate);
}
TEST_F(WebRtcVideoChannelTest, SetMediaConfigSuspendBelowMinBitrate) {
MediaConfig media_config = GetMediaConfig();
media_config.video.suspend_below_min_bitrate = true;
channel_.reset(engine_.CreateMediaChannel(
fake_call_.get(), media_config, VideoOptions(), webrtc::CryptoOptions()));
channel_->OnReadyToSend(true);
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_.CreateMediaChannel(
fake_call_.get(), media_config, VideoOptions(), webrtc::CryptoOptions()));
channel_->OnReadyToSend(true);
channel_->SetSendParameters(send_parameters_);
stream = AddSendStream();
EXPECT_FALSE(stream->GetConfig().suspend_below_min_bitrate);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, VerifyVp8SpecificSettings) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
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);
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, 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_, nullptr, nullptr));
stream = SetUpSimulcast(true, false);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, &capturer));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
EXPECT_EQ(3u, 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 = true;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
stream = SetDenoisingOption(last_ssrc_, &capturer, false);
EXPECT_EQ(1u, 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_, nullptr, nullptr));
}
// Test that setting the same options doesn't result in the encoder being
// reconfigured.
TEST_F(WebRtcVideoChannelTest, SetIdenticalOptionsDoesntReconfigureEncoder) {
VideoOptions options;
FakeVideoCapturerWithTaskQueue capturer;
AddSendStream();
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_TRUE(capturer.CaptureFrame());
// Expect 1 reconfigurations at this point from the initial configuration.
EXPECT_EQ(1, send_stream->num_encoder_reconfigurations());
// Set the options one more time and expect no additional reconfigurations.
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(1, send_stream->num_encoder_reconfigurations());
// Change |options| and expect 2 reconfigurations.
options.video_noise_reduction = true;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(2, send_stream->num_encoder_reconfigurations());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
class Vp9SettingsTest : public WebRtcVideoChannelTest {
public:
Vp9SettingsTest() : Vp9SettingsTest("") {}
explicit Vp9SettingsTest(const char* field_trials)
: WebRtcVideoChannelTest(field_trials) {
encoder_factory_->AddSupportedVideoCodecType("VP9");
}
virtual ~Vp9SettingsTest() {}
protected:
void TearDown() override {
// Remove references to encoder_factory_ since this will be destroyed
// before channel_ and engine_.
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
}
};
TEST_F(Vp9SettingsTest, VerifyVp9SpecificSettings) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP9"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = SetUpSimulcast(false, false);
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, &capturer));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
webrtc::VideoCodecVP9 vp9_settings;
ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
EXPECT_TRUE(vp9_settings.denoisingOn)
<< "VP9 denoising should be on 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 = true;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &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 on for screen sharing.
EXPECT_TRUE(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_TRUE(vp9_settings.frameDroppingOn);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(Vp9SettingsTest, MultipleSsrcsEnablesSvc) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP9"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
FakeVideoSendStream* stream =
AddSendStream(CreateSimStreamParams("cname", ssrcs));
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(ssrcs.size(), config.rtp.ssrcs.size());
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(channel_->SetVideoSend(ssrcs[0], nullptr, &capturer));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
webrtc::VideoCodecVP9 vp9_settings;
ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
const size_t kNumSpatialLayers = ssrcs.size();
const size_t kNumTemporalLayers = 3;
EXPECT_EQ(vp9_settings.numberOfSpatialLayers, kNumSpatialLayers);
EXPECT_EQ(vp9_settings.numberOfTemporalLayers, kNumTemporalLayers);
EXPECT_TRUE(channel_->SetVideoSend(ssrcs[0], nullptr, nullptr));
}
class Vp9SettingsTestWithFieldTrial : public Vp9SettingsTest {
public:
explicit 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(GetEngineCodec("VP9"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = SetUpSimulcast(false, false);
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, 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_, 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(WebRtcVideoChannelTest, VerifyMinBitrate) {
std::vector<webrtc::VideoStream> streams = AddSendStream()->GetVideoStreams();
ASSERT_EQ(1u, streams.size());
EXPECT_EQ(cricket::kMinVideoBitrateBps, streams[0].min_bitrate_bps);
}
TEST_F(WebRtcVideoChannelTest, VerifyMinBitrateWithForcedFallbackFieldTrial) {
webrtc::test::ScopedFieldTrials override_field_trials_(
"WebRTC-VP8-Forced-Fallback-Encoder-v2/Enabled-1,2,34567/");
std::vector<webrtc::VideoStream> streams = AddSendStream()->GetVideoStreams();
ASSERT_EQ(1u, streams.size());
EXPECT_EQ(34567, streams[0].min_bitrate_bps);
}
TEST_F(WebRtcVideoChannelTest,
BalancedDegradationPreferenceNotSupportedWithoutFieldtrial) {
webrtc::test::ScopedFieldTrials override_field_trials_(
"WebRTC-Video-BalancedDegradation/Disabled/");
const bool kResolutionScalingEnabled = true;
const bool kFpsScalingEnabled = false;
TestDegradationPreference(kResolutionScalingEnabled, kFpsScalingEnabled);
}
TEST_F(WebRtcVideoChannelTest,
BalancedDegradationPreferenceSupportedBehindFieldtrial) {
webrtc::test::ScopedFieldTrials override_field_trials_(
"WebRTC-Video-BalancedDegradation/Enabled/");
const bool kResolutionScalingEnabled = true;
const bool kFpsScalingEnabled = true;
TestDegradationPreference(kResolutionScalingEnabled, kFpsScalingEnabled);
}
TEST_F(WebRtcVideoChannelTest, AdaptsOnOveruse) {
TestCpuAdaptation(true, false);
}
TEST_F(WebRtcVideoChannelTest, DoesNotAdaptOnOveruseWhenDisabled) {
TestCpuAdaptation(false, false);
}
TEST_F(WebRtcVideoChannelTest, DoesNotAdaptOnOveruseWhenScreensharing) {
TestCpuAdaptation(true, true);
}
TEST_F(WebRtcVideoChannelTest, AdaptsOnOveruseAndChangeResolution) {
cricket::VideoCodec codec = GetEngineCodec("VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
MediaConfig media_config = GetMediaConfig();
channel_.reset(engine_.CreateMediaChannel(
fake_call_.get(), media_config, VideoOptions(), webrtc::CryptoOptions()));
channel_->OnReadyToSend(true);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
FakeVideoCapturerWithTaskQueue capturer;
ASSERT_TRUE(channel_->SetVideoSend(last_ssrc_, 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();
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720));
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1280, send_stream->GetLastWidth());
EXPECT_EQ(720, send_stream->GetLastHeight());
// Trigger overuse.
rtc::VideoSinkWants wants;
wants.max_pixel_count =
send_stream->GetLastWidth() * send_stream->GetLastHeight() - 1;
send_stream->InjectVideoSinkWants(wants);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720));
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.
wants.max_pixel_count =
send_stream->GetLastWidth() * send_stream->GetLastHeight() - 1;
send_stream->InjectVideoSinkWants(wants);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720));
EXPECT_EQ(3, 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));
EXPECT_EQ(4, 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.
int current_pixel_count =
send_stream->GetLastWidth() * send_stream->GetLastHeight();
// Cap the max to 4x the pixel count (assuming max 1/2 x 1/2 scale downs)
// of the current stream, so we don't take too large steps.
wants.max_pixel_count = current_pixel_count * 4;
// Default step down is 3/5 pixel count, so go up by 5/3.
wants.target_pixel_count = (current_pixel_count * 5 / 3);
send_stream->InjectVideoSinkWants(wants);
EXPECT_TRUE(capturer.CaptureCustomFrame(1284, 724));
EXPECT_EQ(5, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1284 * 3 / 4, send_stream->GetLastWidth());
EXPECT_EQ(724 * 3 / 4, send_stream->GetLastHeight());
// Trigger underuse again, should go back up to full resolution.
current_pixel_count =
send_stream->GetLastWidth() * send_stream->GetLastHeight();
wants.max_pixel_count = current_pixel_count * 4;
wants.target_pixel_count = (current_pixel_count * 5 / 3);
send_stream->InjectVideoSinkWants(wants);
EXPECT_TRUE(capturer.CaptureCustomFrame(1284, 724));
EXPECT_EQ(6, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1284, send_stream->GetLastWidth());
EXPECT_EQ(724, send_stream->GetLastHeight());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, PreviousAdaptationDoesNotApplyToScreenshare) {
cricket::VideoCodec codec = GetEngineCodec("VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
MediaConfig media_config = GetMediaConfig();
media_config.video.enable_cpu_adaptation = true;
channel_.reset(engine_.CreateMediaChannel(
fake_call_.get(), media_config, VideoOptions(), webrtc::CryptoOptions()));
channel_->OnReadyToSend(true);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
FakeVideoCapturerWithTaskQueue capturer;
ASSERT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
ASSERT_TRUE(channel_->SetSend(true));
cricket::VideoOptions camera_options;
camera_options.is_screencast = false;
channel_->SetVideoSend(last_ssrc_, &camera_options, &capturer);
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720));
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(1280, send_stream->GetLastWidth());
EXPECT_EQ(720, send_stream->GetLastHeight());
// Trigger overuse.
rtc::VideoSinkWants wants;
wants.max_pixel_count =
send_stream->GetLastWidth() * send_stream->GetLastHeight() - 1;
send_stream->InjectVideoSinkWants(wants);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720));
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.
FakeVideoCapturerWithTaskQueue screen_share(true);
ASSERT_EQ(cricket::CS_RUNNING,
screen_share.Start(screen_share.GetSupportedFormats()->front()));
cricket::VideoOptions screenshare_options;
screenshare_options.is_screencast = true;
channel_->SetVideoSend(last_ssrc_, &screenshare_options, &screen_share);
EXPECT_TRUE(screen_share.CaptureCustomFrame(1284, 724));
ASSERT_EQ(2, fake_call_->GetNumCreatedSendStreams());
send_stream = fake_call_->GetVideoSendStreams().front();
EXPECT_EQ(1, 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_, &camera_options, &capturer);
send_stream = fake_call_->GetVideoSendStreams().front();
// We have a new fake send stream, so it doesn't remember the old sink wants.
// In practice, it will be populated from
// VideoStreamEncoder::VideoSourceProxy::SetSource(), so simulate that here.
send_stream->InjectVideoSinkWants(wants);
EXPECT_TRUE(capturer.CaptureCustomFrame(1280, 720));
ASSERT_EQ(3, fake_call_->GetNumCreatedSendStreams());
send_stream = fake_call_->GetVideoSendStreams().front();
EXPECT_EQ(1, 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_, nullptr, nullptr));
}
// TODO(asapersson): Remove this test when the balanced field trial is removed.
void WebRtcVideoChannelTest::TestDegradationPreference(
bool resolution_scaling_enabled,
bool fps_scaling_enabled) {
cricket::VideoCodec codec = GetEngineCodec("VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
MediaConfig media_config = GetMediaConfig();
media_config.video.enable_cpu_adaptation = true;
channel_.reset(engine_.CreateMediaChannel(
fake_call_.get(), media_config, VideoOptions(), webrtc::CryptoOptions()));
channel_->OnReadyToSend(true);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
cricket::VideoFormat capture_format = capturer.GetSupportedFormats()->front();
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(capture_format));
EXPECT_TRUE(channel_->SetSend(true));
FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
EXPECT_EQ(resolution_scaling_enabled,
send_stream->resolution_scaling_enabled());
EXPECT_EQ(fps_scaling_enabled, send_stream->framerate_scaling_enabled());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
void WebRtcVideoChannelTest::TestCpuAdaptation(bool enable_overuse,
bool is_screenshare) {
const int kDefaultFps = 30;
cricket::VideoCodec codec = GetEngineCodec("VP8");
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
MediaConfig media_config = GetMediaConfig();
if (enable_overuse) {
media_config.video.enable_cpu_adaptation = true;
}
channel_.reset(engine_.CreateMediaChannel(
fake_call_.get(), media_config, VideoOptions(), webrtc::CryptoOptions()));
channel_->OnReadyToSend(true);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
options.is_screencast = is_screenshare;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
cricket::VideoFormat capture_format = capturer.GetSupportedFormats()->front();
capture_format.interval = rtc::kNumNanosecsPerSec / kDefaultFps;
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(capture_format));
EXPECT_TRUE(channel_->SetSend(true));
FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
if (!enable_overuse) {
EXPECT_FALSE(send_stream->resolution_scaling_enabled());
EXPECT_FALSE(send_stream->framerate_scaling_enabled());
EXPECT_EQ(is_screenshare, send_stream->framerate_scaling_enabled());
EXPECT_TRUE(capturer.CaptureFrame());
EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(capture_format.width, send_stream->GetLastWidth());
EXPECT_EQ(capture_format.height, send_stream->GetLastHeight());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
return;
}
if (is_screenshare) {
EXPECT_FALSE(send_stream->resolution_scaling_enabled());
EXPECT_TRUE(send_stream->framerate_scaling_enabled());
} else {
EXPECT_TRUE(send_stream->resolution_scaling_enabled());
EXPECT_FALSE(send_stream->framerate_scaling_enabled());
}
// Trigger overuse.
ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
rtc::VideoSinkWants wants;
if (is_screenshare) {
wants.max_framerate_fps = (kDefaultFps * 2) / 3;
} else {
wants.max_pixel_count = capture_format.width * capture_format.height - 1;
}
send_stream->InjectVideoSinkWants(wants);
for (int i = 0; i < kDefaultFps; ++i)
EXPECT_TRUE(capturer.CaptureFrame());
if (is_screenshare) {
// Drops every third frame.
EXPECT_EQ(kDefaultFps * 2 / 3, send_stream->GetNumberOfSwappedFrames());
EXPECT_EQ(send_stream->GetLastWidth(), capture_format.width);
EXPECT_EQ(send_stream->GetLastHeight(), capture_format.height);
} else {
EXPECT_EQ(kDefaultFps, send_stream->GetNumberOfSwappedFrames());
EXPECT_LT(send_stream->GetLastWidth(), capture_format.width);
EXPECT_LT(send_stream->GetLastHeight(), capture_format.height);
}
// Trigger underuse which should go back to normal resolution.
int last_pixel_count =
send_stream->GetLastWidth() * send_stream->GetLastHeight();
if (is_screenshare) {
wants.max_framerate_fps = kDefaultFps;
} else {
wants.max_pixel_count = last_pixel_count * 4;
wants.target_pixel_count.emplace((last_pixel_count * 5) / 3);
}
send_stream->InjectVideoSinkWants(wants);
for (int i = 0; i < kDefaultFps; ++i)
EXPECT_TRUE(capturer.CaptureFrame());
if (is_screenshare) {
EXPECT_EQ(kDefaultFps + (kDefaultFps * 2 / 3),
send_stream->GetNumberOfSwappedFrames());
} else {
EXPECT_EQ(kDefaultFps * 2, send_stream->GetNumberOfSwappedFrames());
}
EXPECT_EQ(capture_format.width, send_stream->GetLastWidth());
EXPECT_EQ(capture_format.height, send_stream->GetLastHeight());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, 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(CreateBlackFrameBuffer(4, 4),
kInitialTimestamp, 0,
webrtc::kVideoRotation_0);
// 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.
fake_clock_.AdvanceTimeMicros(kFrameOffsetMs * rtc::kNumMicrosecsPerMillisec);
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(WebRtcVideoChannelTest, SetDefaultSendCodecs) {
AssignDefaultAptRtxTypes();
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().Copy();
// Make sure NACK and FEC are enabled on the correct payload types.
EXPECT_EQ(1000, config.rtp.nack.rtp_history_ms);
EXPECT_EQ(GetEngineCodec("ulpfec").id, config.rtp.ulpfec.ulpfec_payload_type);
EXPECT_EQ(GetEngineCodec("red").id, config.rtp.ulpfec.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.
}
// The following four tests ensures that FlexFEC is not activated by default
// when the field trials are not enabled.
// TODO(brandtr): Remove or update these tests when FlexFEC _is_ enabled by
// default.
TEST_F(WebRtcVideoChannelTest, FlexfecSendCodecWithoutSsrcNotExposedByDefault) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(-1, config.rtp.flexfec.payload_type);
EXPECT_EQ(0U, config.rtp.flexfec.ssrc);
EXPECT_TRUE(config.rtp.flexfec.protected_media_ssrcs.empty());
}
TEST_F(WebRtcVideoChannelTest, FlexfecSendCodecWithSsrcNotExposedByDefault) {
FakeVideoSendStream* stream = AddSendStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(-1, config.rtp.flexfec.payload_type);
EXPECT_EQ(0U, config.rtp.flexfec.ssrc);
EXPECT_TRUE(config.rtp.flexfec.protected_media_ssrcs.empty());
}
TEST_F(WebRtcVideoChannelTest, FlexfecRecvCodecWithoutSsrcNotExposedByDefault) {
AddRecvStream();
const std::vector<FakeFlexfecReceiveStream*>& streams =
fake_call_->GetFlexfecReceiveStreams();
EXPECT_TRUE(streams.empty());
}
TEST_F(WebRtcVideoChannelTest, FlexfecRecvCodecWithSsrcNotExposedByDefault) {
AddRecvStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
const std::vector<FakeFlexfecReceiveStream*>& streams =
fake_call_->GetFlexfecReceiveStreams();
EXPECT_TRUE(streams.empty());
}
// TODO(brandtr): When FlexFEC is no longer behind a field trial, merge all
// tests that use this test fixture into the corresponding "non-field trial"
// tests.
class WebRtcVideoChannelFlexfecRecvTest : public WebRtcVideoChannelTest {
public:
WebRtcVideoChannelFlexfecRecvTest()
: WebRtcVideoChannelTest("WebRTC-FlexFEC-03-Advertised/Enabled/") {}
};
TEST_F(WebRtcVideoChannelFlexfecRecvTest,
DefaultFlexfecCodecHasTransportCcAndRembFeedbackParam) {
EXPECT_TRUE(cricket::HasTransportCc(GetEngineCodec("flexfec-03")));
EXPECT_TRUE(cricket::HasRemb(GetEngineCodec("flexfec-03")));
}
TEST_F(WebRtcVideoChannelFlexfecRecvTest, SetDefaultRecvCodecsWithoutSsrc) {
AddRecvStream();
const std::vector<FakeFlexfecReceiveStream*>& streams =
fake_call_->GetFlexfecReceiveStreams();
EXPECT_TRUE(streams.empty());
const std::vector<FakeVideoReceiveStream*>& video_streams =
fake_call_->GetVideoReceiveStreams();
ASSERT_EQ(1U, video_streams.size());
const FakeVideoReceiveStream& video_stream = *video_streams.front();
EXPECT_EQ(0, video_stream.GetNumAddedSecondarySinks());
EXPECT_EQ(0, video_stream.GetNumRemovedSecondarySinks());
}
TEST_F(WebRtcVideoChannelFlexfecRecvTest, SetDefaultRecvCodecsWithSsrc) {
AddRecvStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
const std::vector<FakeFlexfecReceiveStream*>& streams =
fake_call_->GetFlexfecReceiveStreams();
ASSERT_EQ(1U, streams.size());
const FakeFlexfecReceiveStream* stream = streams.front();
const webrtc::FlexfecReceiveStream::Config& config = stream->GetConfig();
EXPECT_EQ(GetEngineCodec("flexfec-03").id, config.payload_type);
EXPECT_EQ(kFlexfecSsrc, config.remote_ssrc);
ASSERT_EQ(1U, config.protected_media_ssrcs.size());
EXPECT_EQ(kSsrcs1[0], config.protected_media_ssrcs[0]);
const std::vector<FakeVideoReceiveStream*>& video_streams =
fake_call_->GetVideoReceiveStreams();
ASSERT_EQ(1U, video_streams.size());
const FakeVideoReceiveStream& video_stream = *video_streams.front();
EXPECT_EQ(1, video_stream.GetNumAddedSecondarySinks());
const webrtc::VideoReceiveStream::Config& video_config =
video_stream.GetConfig();
EXPECT_TRUE(video_config.rtp.protected_by_flexfec);
}
TEST_F(WebRtcVideoChannelFlexfecRecvTest,
EnablingFlexfecDoesNotRecreateVideoReceiveStream) {
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
AddRecvStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
const std::vector<FakeVideoReceiveStream*>& video_streams =
fake_call_->GetVideoReceiveStreams();
ASSERT_EQ(1U, video_streams.size());
const FakeVideoReceiveStream& video_stream = *video_streams.front();
EXPECT_EQ(0, video_stream.GetNumAddedSecondarySinks());
EXPECT_EQ(0, video_stream.GetNumRemovedSecondarySinks());
// Enable FlexFEC.
recv_parameters.codecs.push_back(GetEngineCodec("flexfec-03"));
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
EXPECT_EQ(2, fake_call_->GetNumCreatedReceiveStreams())
<< "Enabling FlexFEC should create FlexfecReceiveStream.";
EXPECT_EQ(1U, fake_call_->GetVideoReceiveStreams().size())
<< "Enabling FlexFEC should not create VideoReceiveStream.";
EXPECT_EQ(1U, fake_call_->GetFlexfecReceiveStreams().size())
<< "Enabling FlexFEC should create a single FlexfecReceiveStream.";
EXPECT_EQ(1, video_stream.GetNumAddedSecondarySinks());
EXPECT_EQ(0, video_stream.GetNumRemovedSecondarySinks());
}
TEST_F(WebRtcVideoChannelFlexfecRecvTest,
DisablingFlexfecDoesNotRecreateVideoReceiveStream) {
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(GetEngineCodec("VP8"));
recv_parameters.codecs.push_back(GetEngineCodec("flexfec-03"));
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
AddRecvStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
EXPECT_EQ(2, fake_call_->GetNumCreatedReceiveStreams());
EXPECT_EQ(1U, fake_call_->GetFlexfecReceiveStreams().size());
const std::vector<FakeVideoReceiveStream*>& video_streams =
fake_call_->GetVideoReceiveStreams();
ASSERT_EQ(1U, video_streams.size());
const FakeVideoReceiveStream& video_stream = *video_streams.front();
EXPECT_EQ(1, video_stream.GetNumAddedSecondarySinks());
EXPECT_EQ(0, video_stream.GetNumRemovedSecondarySinks());
// Disable FlexFEC.
recv_parameters.codecs.clear();
recv_parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
EXPECT_EQ(2, fake_call_->GetNumCreatedReceiveStreams())
<< "Disabling FlexFEC should not recreate VideoReceiveStream.";
EXPECT_EQ(1U, fake_call_->GetVideoReceiveStreams().size())
<< "Disabling FlexFEC should not destroy VideoReceiveStream.";
EXPECT_TRUE(fake_call_->GetFlexfecReceiveStreams().empty())
<< "Disabling FlexFEC should destroy FlexfecReceiveStream.";
EXPECT_EQ(1, video_stream.GetNumAddedSecondarySinks());
EXPECT_EQ(1, video_stream.GetNumRemovedSecondarySinks());
}
// TODO(brandtr): When FlexFEC is no longer behind a field trial, merge all
// tests that use this test fixture into the corresponding "non-field trial"
// tests.
class WebRtcVideoChannelFlexfecSendRecvTest : public WebRtcVideoChannelTest {
public:
WebRtcVideoChannelFlexfecSendRecvTest()
: WebRtcVideoChannelTest(
"WebRTC-FlexFEC-03-Advertised/Enabled/WebRTC-FlexFEC-03/Enabled/") {
}
};
TEST_F(WebRtcVideoChannelFlexfecSendRecvTest, SetDefaultSendCodecsWithoutSsrc) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(GetEngineCodec("flexfec-03").id, config.rtp.flexfec.payload_type);
EXPECT_EQ(0U, config.rtp.flexfec.ssrc);
EXPECT_TRUE(config.rtp.flexfec.protected_media_ssrcs.empty());
}
TEST_F(WebRtcVideoChannelFlexfecSendRecvTest, SetDefaultSendCodecsWithSsrc) {
FakeVideoSendStream* stream = AddSendStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(GetEngineCodec("flexfec-03").id, config.rtp.flexfec.payload_type);
EXPECT_EQ(kFlexfecSsrc, config.rtp.flexfec.ssrc);
ASSERT_EQ(1U, config.rtp.flexfec.protected_media_ssrcs.size());
EXPECT_EQ(kSsrcs1[0], config.rtp.flexfec.protected_media_ssrcs[0]);
}
TEST_F(WebRtcVideoChannelTest, SetSendCodecsWithoutFec) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(-1, config.rtp.ulpfec.ulpfec_payload_type);
EXPECT_EQ(-1, config.rtp.ulpfec.red_payload_type);
}
TEST_F(WebRtcVideoChannelFlexfecSendRecvTest, SetSendCodecsWithoutFec) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(-1, config.rtp.flexfec.payload_type);
}
TEST_F(WebRtcVideoChannelFlexfecRecvTest, SetRecvCodecsWithFec) {
AddRecvStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(GetEngineCodec("VP8"));
recv_parameters.codecs.push_back(GetEngineCodec("flexfec-03"));
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
const std::vector<FakeFlexfecReceiveStream*>& flexfec_streams =
fake_call_->GetFlexfecReceiveStreams();
ASSERT_EQ(1U, flexfec_streams.size());
const FakeFlexfecReceiveStream* flexfec_stream = flexfec_streams.front();
const webrtc::FlexfecReceiveStream::Config& flexfec_stream_config =
flexfec_stream->GetConfig();
EXPECT_EQ(GetEngineCodec("flexfec-03").id,
flexfec_stream_config.payload_type);
EXPECT_EQ(kFlexfecSsrc, flexfec_stream_config.remote_ssrc);
ASSERT_EQ(1U, flexfec_stream_config.protected_media_ssrcs.size());
EXPECT_EQ(kSsrcs1[0], flexfec_stream_config.protected_media_ssrcs[0]);
const std::vector<FakeVideoReceiveStream*>& video_streams =
fake_call_->GetVideoReceiveStreams();
const FakeVideoReceiveStream* video_stream = video_streams.front();
const webrtc::VideoReceiveStream::Config& video_stream_config =
video_stream->GetConfig();
EXPECT_EQ(video_stream_config.rtp.local_ssrc,
flexfec_stream_config.local_ssrc);
EXPECT_EQ(video_stream_config.rtp.rtcp_mode, flexfec_stream_config.rtcp_mode);
EXPECT_EQ(video_stream_config.rtcp_send_transport,
flexfec_stream_config.rtcp_send_transport);
// TODO(brandtr): Update this EXPECT when we set |transport_cc| in a
// spec-compliant way.
EXPECT_EQ(video_stream_config.rtp.transport_cc,
flexfec_stream_config.transport_cc);
EXPECT_EQ(video_stream_config.rtp.rtcp_mode, flexfec_stream_config.rtcp_mode);
EXPECT_EQ(video_stream_config.rtp.extensions,
flexfec_stream_config.rtp_header_extensions);
}
// We should not send FlexFEC, even if we advertise it, unless the right
// field trial is set.
// TODO(brandtr): Remove when FlexFEC is enabled by default.
TEST_F(WebRtcVideoChannelFlexfecRecvTest,
SetSendCodecsWithoutSsrcWithFecDoesNotEnableFec) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("flexfec-03"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(-1, config.rtp.flexfec.payload_type);
EXPECT_EQ(0u, config.rtp.flexfec.ssrc);
EXPECT_TRUE(config.rtp.flexfec.protected_media_ssrcs.empty());
}
TEST_F(WebRtcVideoChannelFlexfecRecvTest,
SetSendCodecsWithSsrcWithFecDoesNotEnableFec) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("flexfec-03"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = AddSendStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(-1, config.rtp.flexfec.payload_type);
EXPECT_EQ(0u, config.rtp.flexfec.ssrc);
EXPECT_TRUE(config.rtp.flexfec.protected_media_ssrcs.empty());
}
TEST_F(WebRtcVideoChannelTest,
SetSendCodecRejectsRtxWithoutAssociatedPayloadType) {
const int kUnusedPayloadType = 127;
EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType));
cricket::VideoSendParameters parameters;
cricket::VideoCodec rtx_codec(kUnusedPayloadType, "rtx");
parameters.codecs.push_back(rtx_codec);
EXPECT_FALSE(channel_->SetSendParameters(parameters))
<< "RTX codec without associated payload type should be rejected.";
}
TEST_F(WebRtcVideoChannelTest,
SetSendCodecRejectsRtxWithoutMatchingVideoCodec) {
const int kUnusedPayloadType1 = 126;
const int kUnusedPayloadType2 = 127;
EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType1));
EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType2));
{
cricket::VideoCodec rtx_codec = cricket::VideoCodec::CreateRtxCodec(
kUnusedPayloadType1, GetEngineCodec("VP8").id);
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(rtx_codec);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
}
{
cricket::VideoCodec rtx_codec = cricket::VideoCodec::CreateRtxCodec(
kUnusedPayloadType1, kUnusedPayloadType2);
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(rtx_codec);
EXPECT_FALSE(channel_->SetSendParameters(parameters))
<< "RTX without matching video codec should be rejected.";
}
}
TEST_F(WebRtcVideoChannelTest, SetSendCodecsWithChangedRtxPayloadType) {
const int kUnusedPayloadType1 = 126;
const int kUnusedPayloadType2 = 127;
EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType1));
EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType2));
// SSRCs for RTX.
cricket::StreamParams params =
cricket::StreamParams::CreateLegacy(kSsrcs1[0]);
params.AddFidSsrc(kSsrcs1[0], kRtxSsrcs1[0]);
AddSendStream(params);
// Original payload type for RTX.
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
cricket::VideoCodec rtx_codec(kUnusedPayloadType1, "rtx");
rtx_codec.SetParam("apt", GetEngineCodec("VP8").id);
parameters.codecs.push_back(rtx_codec);
EXPECT_TRUE(channel_->SetSendParameters(parameters));
ASSERT_EQ(1U, fake_call_->GetVideoSendStreams().size());
const webrtc::VideoSendStream::Config& config_before =
fake_call_->GetVideoSendStreams()[0]->GetConfig();
EXPECT_EQ(kUnusedPayloadType1, config_before.rtp.rtx.payload_type);
ASSERT_EQ(1U, config_before.rtp.rtx.ssrcs.size());
EXPECT_EQ(kRtxSsrcs1[0], config_before.rtp.rtx.ssrcs[0]);
// Change payload type for RTX.
parameters.codecs[1].id = kUnusedPayloadType2;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
ASSERT_EQ(1U, fake_call_->GetVideoSendStreams().size());
const webrtc::VideoSendStream::Config& config_after =
fake_call_->GetVideoSendStreams()[0]->GetConfig();
EXPECT_EQ(kUnusedPayloadType2, config_after.rtp.rtx.payload_type);
ASSERT_EQ(1U, config_after.rtp.rtx.ssrcs.size());
EXPECT_EQ(kRtxSsrcs1[0], config_after.rtp.rtx.ssrcs[0]);
}
TEST_F(WebRtcVideoChannelTest, SetSendCodecsWithoutFecDisablesFec) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("ulpfec"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(GetEngineCodec("ulpfec").id, config.rtp.ulpfec.ulpfec_payload_type);
parameters.codecs.pop_back();
ASSERT_TRUE(channel_->SetSendParameters(parameters));
stream = fake_call_->GetVideoSendStreams()[0];
ASSERT_TRUE(stream != nullptr);
config = stream->GetConfig().Copy();
EXPECT_EQ(-1, config.rtp.ulpfec.ulpfec_payload_type)
<< "SetSendCodec without ULPFEC should disable current ULPFEC.";
}
TEST_F(WebRtcVideoChannelFlexfecSendRecvTest,
SetSendCodecsWithoutFecDisablesFec) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("flexfec-03"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
FakeVideoSendStream* stream = AddSendStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
webrtc::VideoSendStream::Config config = stream->GetConfig().Copy();
EXPECT_EQ(GetEngineCodec("flexfec-03").id, config.rtp.flexfec.payload_type);
EXPECT_EQ(kFlexfecSsrc, config.rtp.flexfec.ssrc);
ASSERT_EQ(1U, config.rtp.flexfec.protected_media_ssrcs.size());
EXPECT_EQ(kSsrcs1[0], config.rtp.flexfec.protected_media_ssrcs[0]);
parameters.codecs.pop_back();
ASSERT_TRUE(channel_->SetSendParameters(parameters));
stream = fake_call_->GetVideoSendStreams()[0];
ASSERT_TRUE(stream != nullptr);
config = stream->GetConfig().Copy();
EXPECT_EQ(-1, config.rtp.flexfec.payload_type)
<< "SetSendCodec without FlexFEC should disable current FlexFEC.";
}
TEST_F(WebRtcVideoChannelTest, SetSendCodecsChangesExistingStreams) {
cricket::VideoSendParameters parameters;
cricket::VideoCodec codec(100, "VP8");
codec.SetParam(kCodecParamMaxQuantization, kDefaultQpMax);
parameters.codecs.push_back(codec);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
channel_->SetSend(true);
FakeVideoSendStream* stream = AddSendStream();
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, &capturer));
std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
EXPECT_EQ(kDefaultQpMax, streams[0].max_qp);
parameters.codecs.clear();
codec.SetParam(kCodecParamMaxQuantization, kDefaultQpMax + 1);
parameters.codecs.push_back(codec);
ASSERT_TRUE(channel_->SetSendParameters(parameters));
streams = fake_call_->GetVideoSendStreams()[0]->GetVideoStreams();
EXPECT_EQ(kDefaultQpMax + 1, streams[0].max_qp);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, SetSendCodecsWithBitrates) {
SetSendCodecsShouldWorkForBitrates("100", 100000, "150", 150000, "200",
200000);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest,
SetSendCodecsWithoutBitratesUsesCorrectDefaults) {
SetSendCodecsShouldWorkForBitrates("", 0, "", -1, "", -1);
}
TEST_F(WebRtcVideoChannelTest, SetSendCodecsCapsMinAndStartBitrate) {
SetSendCodecsShouldWorkForBitrates("-1", 0, "-100", -1, "", -1);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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;
// We expect max_bandwidth_bps to take priority, if set.
ExpectSetBitrateParameters(100000, 200000, 400000);
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
// Since the codec isn't changing, start_bitrate_bps should be -1.
ExpectSetBitrateParameters(100000, -1, 350000);
// Decrease max_bandwidth_bps.
send_parameters_.max_bandwidth_bps = 350000;
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
// Now try again with the values flipped around.
send_parameters_.codecs[0].params[kCodecParamMaxBitrate] = "400";
send_parameters_.max_bandwidth_bps = 300000;
ExpectSetBitrateParameters(100000, 200000, 300000);
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
// If we change the codec max, max_bandwidth_bps should still apply.
send_parameters_.codecs[0].params[kCodecParamMaxBitrate] = "350";
ExpectSetBitrateParameters(100000, 200000, 300000);
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
}
TEST_F(WebRtcVideoChannelTest, SetMaxSendBandwidthShouldPreserveOtherBitrates) {
SetSendCodecsShouldWorkForBitrates("100", 100000, "150", 150000, "200",
200000);
send_parameters_.max_bandwidth_bps = 300000;
// Setting max bitrate should keep previous min bitrate.
// Setting max bitrate should not reset start bitrate.
ExpectSetBitrateParameters(100000, -1, 300000);
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
}
TEST_F(WebRtcVideoChannelTest, SetMaxSendBandwidthShouldBeRemovable) {
send_parameters_.max_bandwidth_bps = 300000;
ExpectSetMaxBitrate(300000);
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
// -1 means to disable max bitrate (set infinite).
send_parameters_.max_bandwidth_bps = -1;
ExpectSetMaxBitrate(-1);
EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
}
TEST_F(WebRtcVideoChannelTest, SetMaxSendBandwidthAndAddSendStream) {
send_parameters_.max_bandwidth_bps = 99999;
FakeVideoSendStream* stream = AddSendStream();
ExpectSetMaxBitrate(send_parameters_.max_bandwidth_bps);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
ASSERT_EQ(1u, stream->GetVideoStreams().size());
EXPECT_EQ(send_parameters_.max_bandwidth_bps,
stream->GetVideoStreams()[0].max_bitrate_bps);
send_parameters_.max_bandwidth_bps = 77777;
ExpectSetMaxBitrate(send_parameters_.max_bandwidth_bps);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
EXPECT_EQ(send_parameters_.max_bandwidth_bps,
stream->GetVideoStreams()[0].max_bitrate_bps);
}
// Tests that when the codec specific max bitrate and VideoSendParameters
// max_bandwidth_bps are used, that it sets the VideoStream's max bitrate
// appropriately.
TEST_F(WebRtcVideoChannelTest,
MaxBitratePrioritizesVideoSendParametersOverCodecMaxBitrate) {
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 = -1;
AddSendStream();
ExpectSetMaxBitrate(300000);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
std::vector<FakeVideoSendStream*> video_send_streams = GetFakeSendStreams();
ASSERT_EQ(1u, video_send_streams.size());
FakeVideoSendStream* video_send_stream = video_send_streams[0];
ASSERT_EQ(1u, video_send_streams[0]->GetVideoStreams().size());
// First the max bitrate is set based upon the codec param.
EXPECT_EQ(300000,
video_send_streams[0]->GetVideoStreams()[0].max_bitrate_bps);
// The VideoSendParameters max bitrate overrides the codec's.
send_parameters_.max_bandwidth_bps = 500000;
ExpectSetMaxBitrate(send_parameters_.max_bandwidth_bps);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
ASSERT_EQ(1u, video_send_stream->GetVideoStreams().size());
EXPECT_EQ(500000, video_send_stream->GetVideoStreams()[0].max_bitrate_bps);
}
// Tests that when the codec specific max bitrate and RtpParameters
// max_bitrate_bps are used, that it sets the VideoStream's max bitrate
// appropriately.
TEST_F(WebRtcVideoChannelTest,
MaxBitratePrioritizesRtpParametersOverCodecMaxBitrate) {
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 = -1;
AddSendStream();
ExpectSetMaxBitrate(300000);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
std::vector<FakeVideoSendStream*> video_send_streams = GetFakeSendStreams();
ASSERT_EQ(1u, video_send_streams.size());
FakeVideoSendStream* video_send_stream = video_send_streams[0];
ASSERT_EQ(1u, video_send_stream->GetVideoStreams().size());
// First the max bitrate is set based upon the codec param.
EXPECT_EQ(300000, video_send_stream->GetVideoStreams()[0].max_bitrate_bps);
// The RtpParameter max bitrate overrides the codec's.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
ASSERT_EQ(1u, parameters.encodings.size());
parameters.encodings[0].max_bitrate_bps = 500000;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
ASSERT_EQ(1u, video_send_stream->GetVideoStreams().size());
EXPECT_EQ(parameters.encodings[0].max_bitrate_bps,
video_send_stream->GetVideoStreams()[0].max_bitrate_bps);
}
TEST_F(WebRtcVideoChannelTest,
MaxBitrateIsMinimumOfMaxSendBandwidthAndMaxEncodingBitrate) {
send_parameters_.max_bandwidth_bps = 99999;
FakeVideoSendStream* stream = AddSendStream();
ExpectSetMaxBitrate(send_parameters_.max_bandwidth_bps);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
ASSERT_EQ(1u, stream->GetVideoStreams().size());
EXPECT_EQ(send_parameters_.max_bandwidth_bps,
stream->GetVideoStreams()[0].max_bitrate_bps);
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1u, parameters.encodings.size());
parameters.encodings[0].max_bitrate_bps = 99999 - 1;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
EXPECT_EQ(parameters.encodings[0].max_bitrate_bps,
stream->GetVideoStreams()[0].max_bitrate_bps);
parameters.encodings[0].max_bitrate_bps = 99999 + 1;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
EXPECT_EQ(send_parameters_.max_bandwidth_bps,
stream->GetVideoStreams()[0].max_bitrate_bps);
}
TEST_F(WebRtcVideoChannelTest, SetMaxSendBitrateCanIncreaseSenderBitrate) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetSendParameters(parameters));
channel_->SetSend(true);
FakeVideoSendStream* stream = AddSendStream();
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, 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_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest,
SetMaxSendBitrateCanIncreaseSimulcastSenderBitrate) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
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).
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel_->SetVideoSend(kSsrcs3[0], 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], nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, SetSendCodecsWithMaxQuantization) {
static const char* kMaxQuantization = "21";
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs[0].params[kCodecParamMaxQuantization] = kMaxQuantization;
EXPECT_TRUE(channel_->SetSendParameters(parameters));
EXPECT_EQ(atoi(kMaxQuantization),
AddSendStream()->GetVideoStreams().back().max_qp);
VideoCodec codec;
EXPECT_TRUE(channel_->GetSendCodec(&codec));
EXPECT_EQ(kMaxQuantization, codec.params[kCodecParamMaxQuantization]);
}
TEST_F(WebRtcVideoChannelTest, 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(GetEngineCodec("VP8"));
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(WebRtcVideoChannelTest, SetSendCodecsAcceptAllValidPayloadTypes) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
for (int payload_type = 96; 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(WebRtcVideoChannelTest,
SetSendCodecsIdenticalFirstCodecDoesntRecreateStream) {
cricket::VideoSendParameters parameters1;
parameters1.codecs.push_back(GetEngineCodec("VP8"));
parameters1.codecs.push_back(GetEngineCodec("VP9"));
EXPECT_TRUE(channel_->SetSendParameters(parameters1));
AddSendStream();
EXPECT_EQ(1, fake_call_->GetNumCreatedSendStreams());
cricket::VideoSendParameters parameters2;
parameters2.codecs.push_back(GetEngineCodec("VP8"));
EXPECT_TRUE(channel_->SetSendParameters(parameters2));
EXPECT_EQ(1, fake_call_->GetNumCreatedSendStreams());
}
TEST_F(WebRtcVideoChannelTest, SetRecvCodecsWithOnlyVp8) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
}
// Test that we set our inbound RTX codecs properly.
TEST_F(WebRtcVideoChannelTest, SetRecvCodecsWithRtx) {
const int kUnusedPayloadType1 = 126;
const int kUnusedPayloadType2 = 127;
EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType1));
EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType2));
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
cricket::VideoCodec rtx_codec(kUnusedPayloadType1, "rtx");
parameters.codecs.push_back(rtx_codec);
EXPECT_FALSE(channel_->SetRecvParameters(parameters))
<< "RTX codec without associated payload should be rejected.";
parameters.codecs[1].SetParam("apt", kUnusedPayloadType2);
EXPECT_FALSE(channel_->SetRecvParameters(parameters))
<< "RTX codec with invalid associated payload type should be rejected.";
parameters.codecs[1].SetParam("apt", GetEngineCodec("VP8").id);
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
cricket::VideoCodec rtx_codec2(kUnusedPayloadType2, "rtx");
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(WebRtcVideoChannelTest, SetRecvCodecsWithChangedRtxPayloadType) {
const int kUnusedPayloadType1 = 126;
const int kUnusedPayloadType2 = 127;
EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType1));
EXPECT_FALSE(FindCodecById(engine_.codecs(), kUnusedPayloadType2));
// SSRCs for RTX.
cricket::StreamParams params =
cricket::StreamParams::CreateLegacy(kSsrcs1[0]);
params.AddFidSsrc(kSsrcs1[0], kRtxSsrcs1[0]);
AddRecvStream(params);
// Original payload type for RTX.
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
cricket::VideoCodec rtx_codec(kUnusedPayloadType1, "rtx");
rtx_codec.SetParam("apt", GetEngineCodec("VP8").id);
parameters.codecs.push_back(rtx_codec);
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
ASSERT_EQ(1U, fake_call_->GetVideoReceiveStreams().size());
const webrtc::VideoReceiveStream::Config& config_before =
fake_call_->GetVideoReceiveStreams()[0]->GetConfig();
EXPECT_EQ(1U, config_before.rtp.rtx_associated_payload_types.size());
const int* payload_type_before = FindKeyByValue(
config_before.rtp.rtx_associated_payload_types, GetEngineCodec("VP8").id);
ASSERT_NE(payload_type_before, nullptr);
EXPECT_EQ(kUnusedPayloadType1, *payload_type_before);
EXPECT_EQ(kRtxSsrcs1[0], config_before.rtp.rtx_ssrc);
// Change payload type for RTX.
parameters.codecs[1].id = kUnusedPayloadType2;
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
ASSERT_EQ(1U, fake_call_->GetVideoReceiveStreams().size());
const webrtc::VideoReceiveStream::Config& config_after =
fake_call_->GetVideoReceiveStreams()[0]->GetConfig();
EXPECT_EQ(1U, config_after.rtp.rtx_associated_payload_types.size());
const int* payload_type_after = FindKeyByValue(
config_after.rtp.rtx_associated_payload_types, GetEngineCodec("VP8").id);
ASSERT_NE(payload_type_after, nullptr);
EXPECT_EQ(kUnusedPayloadType2, *payload_type_after);
EXPECT_EQ(kRtxSsrcs1[0], config_after.rtp.rtx_ssrc);
}
TEST_F(WebRtcVideoChannelTest, SetRecvCodecsDifferentPayloadType) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs[0].id = 99;
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannelTest, 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].video_format.name);
EXPECT_EQ(engine_.codecs()[0].id, config.decoders[0].payload_type);
}
TEST_F(WebRtcVideoChannelTest, SetRecvCodecsRejectUnsupportedCodec) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(VideoCodec(101, "WTF3"));
EXPECT_FALSE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannelTest, SetRecvCodecsAcceptsMultipleVideoCodecs) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP9"));
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannelTest, SetRecvCodecsWithoutFecDisablesFec) {
cricket::VideoSendParameters send_parameters;
send_parameters.codecs.push_back(GetEngineCodec("VP8"));
send_parameters.codecs.push_back(GetEngineCodec("red"));
send_parameters.codecs.push_back(GetEngineCodec("ulpfec"));
ASSERT_TRUE(channel_->SetSendParameters(send_parameters));
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_EQ(GetEngineCodec("ulpfec").id,
stream->GetConfig().rtp.ulpfec_payload_type);
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
ASSERT_TRUE(stream != nullptr);
EXPECT_EQ(-1, stream->GetConfig().rtp.ulpfec_payload_type)
<< "SetSendCodec without ULPFEC should disable current ULPFEC.";
}
TEST_F(WebRtcVideoChannelFlexfecRecvTest, SetRecvParamsWithoutFecDisablesFec) {
AddRecvStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
const std::vector<FakeFlexfecReceiveStream*>& streams =
fake_call_->GetFlexfecReceiveStreams();
ASSERT_EQ(1U, streams.size());
const FakeFlexfecReceiveStream* stream = streams.front();
EXPECT_EQ(GetEngineCodec("flexfec-03").id, stream->GetConfig().payload_type);
EXPECT_EQ(kFlexfecSsrc, stream->GetConfig().remote_ssrc);
ASSERT_EQ(1U, stream->GetConfig().protected_media_ssrcs.size());
EXPECT_EQ(kSsrcs1[0], stream->GetConfig().protected_media_ssrcs[0]);
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
EXPECT_TRUE(streams.empty())
<< "SetSendCodec without FlexFEC should disable current FlexFEC.";
}
TEST_F(WebRtcVideoChannelTest, SetSendParamsWithFecEnablesFec) {
FakeVideoReceiveStream* stream = AddRecvStream();
EXPECT_EQ(GetEngineCodec("ulpfec").id,
stream->GetConfig().rtp.ulpfec_payload_type);
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(GetEngineCodec("VP8"));
recv_parameters.codecs.push_back(GetEngineCodec("red"));
recv_parameters.codecs.push_back(GetEngineCodec("ulpfec"));
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
ASSERT_TRUE(stream != nullptr);
EXPECT_EQ(GetEngineCodec("ulpfec").id,
stream->GetConfig().rtp.ulpfec_payload_type)
<< "ULPFEC should be enabled on the receive stream.";
cricket::VideoSendParameters send_parameters;
send_parameters.codecs.push_back(GetEngineCodec("VP8"));
send_parameters.codecs.push_back(GetEngineCodec("red"));
send_parameters.codecs.push_back(GetEngineCodec("ulpfec"));
ASSERT_TRUE(channel_->SetSendParameters(send_parameters));
stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(GetEngineCodec("ulpfec").id,
stream->GetConfig().rtp.ulpfec_payload_type)
<< "ULPFEC should be enabled on the receive stream.";
}
TEST_F(WebRtcVideoChannelFlexfecSendRecvTest,
SetSendRecvParamsWithFecEnablesFec) {
AddRecvStream(
CreatePrimaryWithFecFrStreamParams("cname", kSsrcs1[0], kFlexfecSsrc));
const std::vector<FakeFlexfecReceiveStream*>& streams =
fake_call_->GetFlexfecReceiveStreams();
cricket::VideoRecvParameters recv_parameters;
recv_parameters.codecs.push_back(GetEngineCodec("VP8"));
recv_parameters.codecs.push_back(GetEngineCodec("flexfec-03"));
ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
ASSERT_EQ(1U, streams.size());
const FakeFlexfecReceiveStream* stream_with_recv_params = streams.front();
EXPECT_EQ(GetEngineCodec("flexfec-03").id,
stream_with_recv_params->GetConfig().payload_type);
EXPECT_EQ(kFlexfecSsrc, stream_with_recv_params->GetConfig().remote_ssrc);
EXPECT_EQ(1U,
stream_with_recv_params->GetConfig().protected_media_ssrcs.size());
EXPECT_EQ(kSsrcs1[0],
stream_with_recv_params->GetConfig().protected_media_ssrcs[0]);
cricket::VideoSendParameters send_parameters;
send_parameters.codecs.push_back(GetEngineCodec("VP8"));
send_parameters.codecs.push_back(GetEngineCodec("flexfec-03"));
ASSERT_TRUE(channel_->SetSendParameters(send_parameters));
ASSERT_EQ(1U, streams.size());
const FakeFlexfecReceiveStream* stream_with_send_params = streams.front();
EXPECT_EQ(GetEngineCodec("flexfec-03").id,
stream_with_send_params->GetConfig().payload_type);
EXPECT_EQ(kFlexfecSsrc, stream_with_send_params->GetConfig().remote_ssrc);
EXPECT_EQ(1U,
stream_with_send_params->GetConfig().protected_media_ssrcs.size());
EXPECT_EQ(kSsrcs1[0],
stream_with_send_params->GetConfig().protected_media_ssrcs[0]);
}
TEST_F(WebRtcVideoChannelTest, SetRecvCodecsRejectDuplicateFecPayloads) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("red"));
parameters.codecs[1].id = parameters.codecs[0].id;
EXPECT_FALSE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannelFlexfecRecvTest,
SetRecvCodecsRejectDuplicateFecPayloads) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("flexfec-03"));
parameters.codecs[1].id = parameters.codecs[0].id;
EXPECT_FALSE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannelTest, SetRecvCodecsRejectDuplicateCodecPayloads) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP9"));
parameters.codecs[1].id = parameters.codecs[0].id;
EXPECT_FALSE(channel_->SetRecvParameters(parameters));
}
TEST_F(WebRtcVideoChannelTest,
SetRecvCodecsAcceptSameCodecOnMultiplePayloadTypes) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP8"));
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(WebRtcVideoChannelTest,
SetRecvCodecsDifferentOrderDoesntRecreateStream) {
cricket::VideoRecvParameters parameters1;
parameters1.codecs.push_back(GetEngineCodec("VP8"));
parameters1.codecs.push_back(GetEngineCodec("red"));
EXPECT_TRUE(channel_->SetRecvParameters(parameters1));
AddRecvStream(cricket::StreamParams::CreateLegacy(123));
EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
cricket::VideoRecvParameters parameters2;
parameters2.codecs.push_back(GetEngineCodec("red"));
parameters2.codecs.push_back(GetEngineCodec("VP8"));
EXPECT_TRUE(channel_->SetRecvParameters(parameters2));
EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
}
TEST_F(WebRtcVideoChannelTest, SendStreamNotSendingByDefault) {
EXPECT_FALSE(AddSendStream()->IsSending());
}
TEST_F(WebRtcVideoChannelTest, ReceiveStreamReceivingByDefault) {
EXPECT_TRUE(AddRecvStream()->IsReceiving());
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, TestSetDscpOptions) {
std::unique_ptr<cricket::FakeNetworkInterface> network_interface(
new cricket::FakeNetworkInterface);
MediaConfig config;
std::unique_ptr<cricket::WebRtcVideoChannel> channel;
webrtc::RtpParameters parameters;
channel.reset(
static_cast<cricket::WebRtcVideoChannel*>(engine_.CreateMediaChannel(
call_.get(), config, VideoOptions(), webrtc::CryptoOptions())));
channel->SetInterface(network_interface.get(), /*media_transport=*/nullptr);
// Default value when DSCP is disabled should be DSCP_DEFAULT.
EXPECT_EQ(rtc::DSCP_DEFAULT, network_interface->dscp());
// Default value when DSCP is enabled is also DSCP_DEFAULT, until it is set
// through rtp parameters.
config.enable_dscp = true;
channel.reset(
static_cast<cricket::WebRtcVideoChannel*>(engine_.CreateMediaChannel(
call_.get(), config, VideoOptions(), webrtc::CryptoOptions())));
channel->SetInterface(network_interface.get(), /*media_transport=*/nullptr);
EXPECT_EQ(rtc::DSCP_DEFAULT, network_interface->dscp());
// Create a send stream to configure
EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(kSsrc)));
parameters = channel->GetRtpSendParameters(kSsrc);
ASSERT_FALSE(parameters.encodings.empty());
// Various priorities map to various dscp values.
parameters.encodings[0].network_priority = 4.0;
ASSERT_TRUE(channel->SetRtpSendParameters(kSsrc, parameters).ok());
EXPECT_EQ(rtc::DSCP_AF41, network_interface->dscp());
parameters.encodings[0].network_priority = 0.5;
ASSERT_TRUE(channel->SetRtpSendParameters(kSsrc, parameters).ok());
EXPECT_EQ(rtc::DSCP_CS1, network_interface->dscp());
// A bad priority does not change the dscp value.
parameters.encodings[0].network_priority = 0.0;
ASSERT_FALSE(channel->SetRtpSendParameters(kSsrc, parameters).ok());
EXPECT_EQ(rtc::DSCP_CS1, network_interface->dscp());
// Packets should also self-identify their dscp in PacketOptions.
const uint8_t kData[10] = {0};
EXPECT_TRUE(static_cast<webrtc::Transport*>(channel.get())
->SendRtcp(kData, sizeof(kData)));
EXPECT_EQ(rtc::DSCP_CS1, network_interface->options().dscp);
// Verify that setting the option to false resets the
// DiffServCodePoint.
config.enable_dscp = false;
channel.reset(
static_cast<cricket::WebRtcVideoChannel*>(engine_.CreateMediaChannel(
call_.get(), config, VideoOptions(), webrtc::CryptoOptions())));
channel->SetInterface(network_interface.get(), /*media_transport=*/nullptr);
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(WebRtcVideoChannelTest, TestSetSendRtcpReducedSize) {
// Create stream, expecting that default mode is "compound".
FakeVideoSendStream* stream1 = AddSendStream();
EXPECT_EQ(webrtc::RtcpMode::kCompound, stream1->GetConfig().rtp.rtcp_mode);
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_FALSE(rtp_parameters.rtcp.reduced_size);
// 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);
rtp_parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_TRUE(rtp_parameters.rtcp.reduced_size);
// 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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, GetStatsReportsSentCodecName) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
EXPECT_TRUE(channel_->SetSendParameters(parameters));
AddSendStream();
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ("VP8", info.senders[0].codec_name);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, GetStatsReportsFramesEncoded) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.frames_encoded = 13;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ(stats.frames_encoded, info.senders[0].frames_encoded);
}
TEST_F(WebRtcVideoChannelTest, GetStatsReportsQpSum) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.qp_sum = 13;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
ASSERT_TRUE(channel_->GetStats(&info));
EXPECT_EQ(stats.qp_sum, info.senders[0].qp_sum);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, GetStatsReportsCpuAdaptationStats) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.number_of_cpu_adapt_changes = 2;
stats.cpu_limited_resolution = true;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(WebRtcVideoChannel::ADAPTREASON_CPU, info.senders[0].adapt_reason);
EXPECT_EQ(stats.number_of_cpu_adapt_changes, info.senders[0].adapt_changes);
}
TEST_F(WebRtcVideoChannelTest, GetStatsReportsAdaptationAndBandwidthStats) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::VideoSendStream::Stats stats;
stats.number_of_cpu_adapt_changes = 2;
stats.cpu_limited_resolution = true;
stats.bw_limited_resolution = true;
stream->SetStats(stats);
cricket::VideoMediaInfo info;
EXPECT_TRUE(channel_->GetStats(&info));
ASSERT_EQ(1U, info.senders.size());
EXPECT_EQ(WebRtcVideoChannel::ADAPTREASON_CPU |
WebRtcVideoChannel::ADAPTREASON_BANDWIDTH,
info.senders[0].adapt_reason);
EXPECT_EQ(stats.number_of_cpu_adapt_changes, info.senders[0].adapt_changes);
}
TEST_F(WebRtcVideoChannelTest,
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(WebRtcVideoChannel::ADAPTREASON_BANDWIDTH,
info.senders[0].adapt_reason);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest,
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,
rtc::checked_cast<unsigned int>(info.receivers[0].firs_sent));
EXPECT_EQ(stats.rtcp_packet_type_counts.nack_packets,
rtc::checked_cast<unsigned int>(info.receivers[0].nacks_sent));
EXPECT_EQ(stats.rtcp_packet_type_counts.pli_packets,
rtc::checked_cast<unsigned int>(info.receivers[0].plis_sent));
}
TEST_F(WebRtcVideoChannelTest, 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;
stats.width = 9;
stats.height = 10;
stats.frame_counts.key_frames = 11;
stats.frame_counts.delta_frames = 12;
stats.frames_rendered = 13;
stats.frames_decoded = 14;
stats.qp_sum = 15;
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);
EXPECT_EQ(stats.width, info.receivers[0].frame_width);
EXPECT_EQ(stats.height, info.receivers[0].frame_height);
EXPECT_EQ(rtc::checked_cast<unsigned int>(stats.frame_counts.key_frames +
stats.frame_counts.delta_frames),
info.receivers[0].frames_received);
EXPECT_EQ(stats.frames_rendered, info.receivers[0].frames_rendered);
EXPECT_EQ(stats.frames_decoded, info.receivers[0].frames_decoded);
EXPECT_EQ(stats.qp_sum, info.receivers[0].qp_sum);
}
TEST_F(WebRtcVideoChannelTest, 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.packets_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,
rtc::checked_cast<size_t>(info.receivers[0].bytes_rcvd));
EXPECT_EQ(stats.rtp_stats.transmitted.packets,
rtc::checked_cast<unsigned int>(info.receivers[0].packets_rcvd));
EXPECT_EQ(stats.rtcp_stats.packets_lost, info.receivers[0].packets_lost);
EXPECT_EQ(rtc::checked_cast<float>(stats.rtcp_stats.fraction_lost) / (1 << 8),
info.receivers[0].fraction_lost);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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());
BandwidthEstimationInfo bwe_info;
channel_->FillBitrateInfo(&bwe_info);
// 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,
bwe_info.target_enc_bitrate);
EXPECT_EQ(stats.media_bitrate_bps + stats2.media_bitrate_bps,
bwe_info.actual_enc_bitrate);
EXPECT_EQ(1 + 3 + 5 + 7, bwe_info.transmit_bitrate)
<< "Bandwidth stats should take all streams into account.";
EXPECT_EQ(2 + 4 + 6 + 8, bwe_info.retransmit_bitrate)
<< "Bandwidth stats should take all streams into account.";
}
TEST_F(WebRtcVideoChannelTest, 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);
channel_->OnPacketReceived(&packet, /* packet_time_us */ -1);
ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size())
<< "No default receive stream created.";
FakeVideoReceiveStream* recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(0u, recv_stream->GetConfig().rtp.rtx_ssrc)
<< "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 have reconfigured, not added a new receiver.";
recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_FALSE(
recv_stream->GetConfig().rtp.rtx_associated_payload_types.empty());
EXPECT_TRUE(VerifyRtxReceiveAssociations(recv_stream->GetConfig()))
<< "RTX should be mapped for all decoders/payload types.";
EXPECT_TRUE(HasRtxReceiveAssociation(recv_stream->GetConfig(),
GetEngineCodec("red").id))
<< "RTX should be mapped also for the RED payload type";
EXPECT_EQ(rtx_ssrcs[0], recv_stream->GetConfig().rtp.rtx_ssrc);
}
TEST_F(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest,
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(WebRtcVideoChannelTest, 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(WebRtcVideoChannelTest, 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 = GetEngineCodec("VP8").id;
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());
}
// Tests that when we add a stream without SSRCs, but contains a stream_id
// that it is stored and its stream id is later used when the first packet
// arrives to properly create a receive stream with a sync label.
TEST_F(WebRtcVideoChannelTest, RecvUnsignaledSsrcWithSignaledStreamId) {
const char kSyncLabel[] = "sync_label";
cricket::StreamParams unsignaled_stream;
unsignaled_stream.set_stream_ids({kSyncLabel});
ASSERT_TRUE(channel_->AddRecvStream(unsignaled_stream));
// The stream shouldn't have been created at this point because it doesn't
// have any SSRCs.
EXPECT_EQ(0u, fake_call_->GetVideoReceiveStreams().size());
// Create and deliver packet.
const size_t kDataLength = 12;
uint8_t data[kDataLength];
memset(data, 0, sizeof(data));
rtc::SetBE32(&data[8], kIncomingUnsignalledSsrc);
rtc::CopyOnWriteBuffer packet(data, kDataLength);
channel_->OnPacketReceived(&packet, /* packet_time_us */ -1);
// The stream should now be created with the appropriate sync label.
EXPECT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
EXPECT_EQ(kSyncLabel,
fake_call_->GetVideoReceiveStreams()[0]->GetConfig().sync_group);
// Removing the unsignaled stream should clear the cache. This time when
// a default video receive stream is created it won't have a sync_group.
ASSERT_TRUE(channel_->RemoveRecvStream(0));
ASSERT_TRUE(channel_->RemoveRecvStream(kIncomingUnsignalledSsrc));
EXPECT_EQ(0u, fake_call_->GetVideoReceiveStreams().size());
channel_->OnPacketReceived(&packet, /* packet_time_us */ -1);
EXPECT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
EXPECT_TRUE(
fake_call_->GetVideoReceiveStreams()[0]->GetConfig().sync_group.empty());
}
void WebRtcVideoChannelTest::TestReceiveUnsignaledSsrcPacket(
uint8_t payload_type,
bool expect_created_receive_stream) {
// kRedRtxPayloadType must currently be unused.
EXPECT_FALSE(FindCodecById(engine_.codecs(), kRedRtxPayloadType));
// Add a RED RTX codec.
VideoCodec red_rtx_codec =
VideoCodec::CreateRtxCodec(kRedRtxPayloadType, GetEngineCodec("red").id);
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);
channel_->OnPacketReceived(&packet, /* packet_time_us */ -1);
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;
}
}
class WebRtcVideoChannelDiscardUnknownSsrcTest : public WebRtcVideoChannelTest {
public:
WebRtcVideoChannelDiscardUnknownSsrcTest()
: WebRtcVideoChannelTest(
"WebRTC-Video-DiscardPacketsWithUnknownSsrc/Enabled/") {}
};
TEST_F(WebRtcVideoChannelDiscardUnknownSsrcTest, NoUnsignalledStreamCreated) {
TestReceiveUnsignaledSsrcPacket(GetEngineCodec("VP8").id,
false /* expect_created_receive_stream */);
}
TEST_F(WebRtcVideoChannelTest, Vp8PacketCreatesUnsignalledStream) {
TestReceiveUnsignaledSsrcPacket(GetEngineCodec("VP8").id,
true /* expect_created_receive_stream */);
}
TEST_F(WebRtcVideoChannelTest, Vp9PacketCreatesUnsignalledStream) {
TestReceiveUnsignaledSsrcPacket(GetEngineCodec("VP9").id,
true /* expect_created_receive_stream */);
}
TEST_F(WebRtcVideoChannelTest, RtxPacketDoesntCreateUnsignalledStream) {
AssignDefaultAptRtxTypes();
const cricket::VideoCodec vp8 = GetEngineCodec("VP8");
const int rtx_vp8_payload_type = default_apt_rtx_types_[vp8.id];
TestReceiveUnsignaledSsrcPacket(rtx_vp8_payload_type,
false /* expect_created_receive_stream */);
}
TEST_F(WebRtcVideoChannelTest, UlpfecPacketDoesntCreateUnsignalledStream) {
TestReceiveUnsignaledSsrcPacket(GetEngineCodec("ulpfec").id,
false /* expect_created_receive_stream */);
}
TEST_F(WebRtcVideoChannelFlexfecRecvTest,
FlexfecPacketDoesntCreateUnsignalledStream) {
TestReceiveUnsignaledSsrcPacket(GetEngineCodec("flexfec-03").id,
false /* expect_created_receive_stream */);
}
TEST_F(WebRtcVideoChannelTest, RedRtxPacketDoesntCreateUnsignalledStream) {
TestReceiveUnsignaledSsrcPacket(kRedRtxPayloadType,
false /* expect_created_receive_stream */);
}
// Test that receiving any unsignalled SSRC works even if it changes.
// The first unsignalled SSRC received will create a default receive stream.
// Any different unsignalled SSRC received will replace the default.
TEST_F(WebRtcVideoChannelTest, ReceiveDifferentUnsignaledSsrc) {
// Allow receiving VP8, VP9, H264 (if enabled).
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP9"));
#if defined(WEBRTC_USE_H264)
cricket::VideoCodec H264codec(126, "H264");
parameters.codecs.push_back(H264codec);
#endif
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
// No receive streams yet.
ASSERT_EQ(0u, fake_call_->GetVideoReceiveStreams().size());
cricket::FakeVideoRenderer renderer;
EXPECT_TRUE(channel_->SetSink(kDefaultRecvSsrc, &renderer));
// Receive VP8 packet on first SSRC.
uint8_t data[kMinRtpPacketLen];
cricket::RtpHeader rtpHeader;
rtpHeader.payload_type = GetEngineCodec("VP8").id;
rtpHeader.seq_num = rtpHeader.timestamp = 0;
rtpHeader.ssrc = kIncomingUnsignalledSsrc + 1;
cricket::SetRtpHeader(data, sizeof(data), rtpHeader);
rtc::CopyOnWriteBuffer packet(data, sizeof(data));
channel_->OnPacketReceived(&packet, /* packet_time_us */ -1);
// VP8 packet should create default receive stream.
ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
FakeVideoReceiveStream* recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(rtpHeader.ssrc, recv_stream->GetConfig().rtp.remote_ssrc);
// Verify that the receive stream sinks to a renderer.
webrtc::VideoFrame video_frame(CreateBlackFrameBuffer(4, 4), 100, 0,
webrtc::kVideoRotation_0);
recv_stream->InjectFrame(video_frame);
EXPECT_EQ(1, renderer.num_rendered_frames());
// Receive VP9 packet on second SSRC.
rtpHeader.payload_type = GetEngineCodec("VP9").id;
rtpHeader.ssrc = kIncomingUnsignalledSsrc + 2;
cricket::SetRtpHeader(data, sizeof(data), rtpHeader);
rtc::CopyOnWriteBuffer packet2(data, sizeof(data));
channel_->OnPacketReceived(&packet2, /* packet_time_us */ -1);
// VP9 packet should replace the default receive SSRC.
ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(rtpHeader.ssrc, recv_stream->GetConfig().rtp.remote_ssrc);
// Verify that the receive stream sinks to a renderer.
webrtc::VideoFrame video_frame2(CreateBlackFrameBuffer(4, 4), 200, 0,
webrtc::kVideoRotation_0);
recv_stream->InjectFrame(video_frame2);
EXPECT_EQ(2, renderer.num_rendered_frames());
#if defined(WEBRTC_USE_H264)
// Receive H264 packet on third SSRC.
rtpHeader.payload_type = 126;
rtpHeader.ssrc = kIncomingUnsignalledSsrc + 3;
cricket::SetRtpHeader(data, sizeof(data), rtpHeader);
rtc::CopyOnWriteBuffer packet3(data, sizeof(data));
channel_->OnPacketReceived(&packet3, /* packet_time_us */ -1);
// H264 packet should replace the default receive SSRC.
ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
recv_stream = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(rtpHeader.ssrc, recv_stream->GetConfig().rtp.remote_ssrc);
// Verify that the receive stream sinks to a renderer.
webrtc::VideoFrame video_frame3(CreateBlackFrameBuffer(4, 4), 300, 0,
webrtc::kVideoRotation_0);
recv_stream->InjectFrame(video_frame3);
EXPECT_EQ(3, renderer.num_rendered_frames());
#endif
}
// This test verifies that when a new default stream is created for a new
// unsignaled SSRC, the new stream does not overwrite any old stream that had
// been the default receive stream before being properly signaled.
TEST_F(WebRtcVideoChannelTest,
NewUnsignaledStreamDoesNotDestroyPreviouslyUnsignaledStream) {
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
ASSERT_TRUE(channel_->SetRecvParameters(parameters));
// No streams signaled and no packets received, so we should not have any
// stream objects created yet.
EXPECT_EQ(0u, fake_call_->GetVideoReceiveStreams().size());
// Receive packet on an unsignaled SSRC.
uint8_t data[kMinRtpPacketLen];
cricket::RtpHeader rtp_header;
rtp_header.payload_type = GetEngineCodec("VP8").id;
rtp_header.seq_num = rtp_header.timestamp = 0;
rtp_header.ssrc = kSsrcs3[0];
cricket::SetRtpHeader(data, sizeof(data), rtp_header);
rtc::CopyOnWriteBuffer packet(data, sizeof(data));
channel_->OnPacketReceived(&packet, /* packet_time_us */ -1);
// Default receive stream should be created.
ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
FakeVideoReceiveStream* recv_stream0 =
fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(kSsrcs3[0], recv_stream0->GetConfig().rtp.remote_ssrc);
// Signal the SSRC.
EXPECT_TRUE(
channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrcs3[0])));
ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
recv_stream0 = fake_call_->GetVideoReceiveStreams()[0];
EXPECT_EQ(kSsrcs3[0], recv_stream0->GetConfig().rtp.remote_ssrc);
// Receive packet on a different unsignaled SSRC.
rtp_header.ssrc = kSsrcs3[1];
cricket::SetRtpHeader(data, sizeof(data), rtp_header);
packet.SetData(data, sizeof(data));
channel_->OnPacketReceived(&packet, /* packet_time_us */ -1);
// New default receive stream should be created, but old stream should remain.
ASSERT_EQ(2u, fake_call_->GetVideoReceiveStreams().size());
EXPECT_EQ(recv_stream0, fake_call_->GetVideoReceiveStreams()[0]);
FakeVideoReceiveStream* recv_stream1 =
fake_call_->GetVideoReceiveStreams()[1];
EXPECT_EQ(kSsrcs3[1], recv_stream1->GetConfig().rtp.remote_ssrc);
}
TEST_F(WebRtcVideoChannelTest, CanSetMaxBitrateForExistingStream) {
AddSendStream();
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, 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));
capturer.CaptureFrame();
int default_encoder_bitrate = GetMaxEncoderBitrate();
EXPECT_GT(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 - remove the bandwidth limit
SetAndExpectMaxBitrate(1000, 0, 1000);
SetAndExpectMaxBitrate(1000, 800, 800);
SetAndExpectMaxBitrate(600, 800, 600);
SetAndExpectMaxBitrate(0, 800, 800);
SetAndExpectMaxBitrate(0, 0, default_encoder_bitrate);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, CannotSetMaxBitrateForNonexistentStream) {
webrtc::RtpParameters nonexistent_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(0u, nonexistent_parameters.encodings.size());
nonexistent_parameters.encodings.push_back(webrtc::RtpEncodingParameters());
EXPECT_FALSE(
channel_->SetRtpSendParameters(last_ssrc_, nonexistent_parameters).ok());
}
TEST_F(WebRtcVideoChannelTest,
SetLowMaxBitrateOverwritesVideoStreamMinBitrate) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
EXPECT_FALSE(parameters.encodings[0].max_bitrate_bps.has_value());
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Note that this is testing the behavior of the FakeVideoSendStream, which
// also calls to CreateEncoderStreams to get the VideoStreams, so essentially
// we are just testing the behavior of
// EncoderStreamFactory::CreateEncoderStreams.
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
EXPECT_EQ(kMinVideoBitrateBps, stream->GetVideoStreams()[0].min_bitrate_bps);
// Set a low max bitrate & check that VideoStream.min_bitrate_bps is limited
// by this amount.
parameters = channel_->GetRtpSendParameters(last_ssrc_);
int low_max_bitrate_bps = kMinVideoBitrateBps - 1000;
parameters.encodings[0].max_bitrate_bps = low_max_bitrate_bps;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
EXPECT_EQ(low_max_bitrate_bps, stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_EQ(low_max_bitrate_bps, stream->GetVideoStreams()[0].max_bitrate_bps);
}
TEST_F(WebRtcVideoChannelTest,
SetHighMinBitrateOverwritesVideoStreamMaxBitrate) {
FakeVideoSendStream* stream = AddSendStream();
// Note that this is testing the behavior of the FakeVideoSendStream, which
// also calls to CreateEncoderStreams to get the VideoStreams, so essentially
// we are just testing the behavior of
// EncoderStreamFactory::CreateEncoderStreams.
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
int high_min_bitrate_bps = stream->GetVideoStreams()[0].max_bitrate_bps + 1;
// Set a high min bitrate and check that max_bitrate_bps is adjusted up.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
parameters.encodings[0].min_bitrate_bps = high_min_bitrate_bps;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
EXPECT_EQ(high_min_bitrate_bps, stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_EQ(high_min_bitrate_bps, stream->GetVideoStreams()[0].max_bitrate_bps);
}
TEST_F(WebRtcVideoChannelTest,
SetMinBitrateAboveMaxBitrateLimitAdjustsMinBitrateDown) {
send_parameters_.max_bandwidth_bps = 99999;
FakeVideoSendStream* stream = AddSendStream();
ExpectSetMaxBitrate(send_parameters_.max_bandwidth_bps);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
EXPECT_EQ(kMinVideoBitrateBps, stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_EQ(send_parameters_.max_bandwidth_bps,
stream->GetVideoStreams()[0].max_bitrate_bps);
// Set min bitrate above global max bitrate and check that min_bitrate_bps is
// adjusted down.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
parameters.encodings[0].min_bitrate_bps = 99999 + 1;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
EXPECT_EQ(send_parameters_.max_bandwidth_bps,
stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_EQ(send_parameters_.max_bandwidth_bps,
stream->GetVideoStreams()[0].max_bitrate_bps);
}
TEST_F(WebRtcVideoChannelTest, SetMaxFramerateOneStream) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
EXPECT_FALSE(parameters.encodings[0].max_framerate.has_value());
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Note that this is testing the behavior of the FakeVideoSendStream, which
// also calls to CreateEncoderStreams to get the VideoStreams, so essentially
// we are just testing the behavior of
// EncoderStreamFactory::CreateEncoderStreams.
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
EXPECT_EQ(kDefaultVideoMaxFramerate,
stream->GetVideoStreams()[0].max_framerate);
// Set max framerate and check that VideoStream.max_framerate is set.
const int kNewMaxFramerate = kDefaultVideoMaxFramerate - 1;
parameters = channel_->GetRtpSendParameters(last_ssrc_);
parameters.encodings[0].max_framerate = kNewMaxFramerate;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
EXPECT_EQ(kNewMaxFramerate, stream->GetVideoStreams()[0].max_framerate);
}
TEST_F(WebRtcVideoChannelTest, SetNumTemporalLayersForSingleStream) {
FakeVideoSendStream* stream = AddSendStream();
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
EXPECT_FALSE(parameters.encodings[0].num_temporal_layers.has_value());
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Note that this is testing the behavior of the FakeVideoSendStream, which
// also calls to CreateEncoderStreams to get the VideoStreams, so essentially
// we are just testing the behavior of
// EncoderStreamFactory::CreateEncoderStreams.
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
EXPECT_FALSE(stream->GetVideoStreams()[0].num_temporal_layers.has_value());
// Set temporal layers and check that VideoStream.num_temporal_layers is set.
parameters = channel_->GetRtpSendParameters(last_ssrc_);
parameters.encodings[0].num_temporal_layers = 2;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
ASSERT_EQ(1UL, stream->GetVideoStreams().size());
EXPECT_EQ(2UL, stream->GetVideoStreams()[0].num_temporal_layers);
}
TEST_F(WebRtcVideoChannelTest,
CannotSetRtpSendParametersWithIncorrectNumberOfEncodings) {
AddSendStream();
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
// Two or more encodings should result in failure.
parameters.encodings.push_back(webrtc::RtpEncodingParameters());
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Zero encodings should also fail.
parameters.encodings.clear();
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
}
TEST_F(WebRtcVideoChannelTest,
CannotSetSimulcastRtpSendParametersWithIncorrectNumberOfEncodings) {
std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
StreamParams sp = CreateSimStreamParams("cname", ssrcs);
AddSendStream(sp);
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
// Additional encodings should result in failure.
parameters.encodings.push_back(webrtc::RtpEncodingParameters());
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Zero encodings should also fail.
parameters.encodings.clear();
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
}
// Changing the SSRC through RtpParameters is not allowed.
TEST_F(WebRtcVideoChannelTest, CannotSetSsrcInRtpSendParameters) {
AddSendStream();
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
parameters.encodings[0].ssrc = 0xdeadbeef;
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
}
// Tests that when RTCRtpEncodingParameters.bitrate_priority gets set to
// a value <= 0, setting the parameters returns false.
TEST_F(WebRtcVideoChannelTest, SetRtpSendParametersInvalidBitratePriority) {
AddSendStream();
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
EXPECT_EQ(webrtc::kDefaultBitratePriority,
parameters.encodings[0].bitrate_priority);
parameters.encodings[0].bitrate_priority = 0;
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
parameters.encodings[0].bitrate_priority = -2;
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
}
// Tests when the the RTCRtpEncodingParameters.bitrate_priority gets set
// properly on the VideoChannel and propogates down to the video encoder.
TEST_F(WebRtcVideoChannelTest, SetRtpSendParametersPriorityOneStream) {
AddSendStream();
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
EXPECT_EQ(webrtc::kDefaultBitratePriority,
parameters.encodings[0].bitrate_priority);
// Change the value and set it on the VideoChannel.
double new_bitrate_priority = 2.0;
parameters.encodings[0].bitrate_priority = new_bitrate_priority;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the encoding parameters bitrate_priority is set for the
// VideoChannel.
parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
EXPECT_EQ(new_bitrate_priority, parameters.encodings[0].bitrate_priority);
// Verify that the new value propagated down to the encoder.
std::vector<FakeVideoSendStream*> video_send_streams =
fake_call_->GetVideoSendStreams();
EXPECT_EQ(1UL, video_send_streams.size());
FakeVideoSendStream* video_send_stream = video_send_streams.front();
// Check that the WebRtcVideoSendStream updated the VideoEncoderConfig
// appropriately.
EXPECT_EQ(new_bitrate_priority,
video_send_stream->GetEncoderConfig().bitrate_priority);
// Check that the vector of VideoStreams also was propagated correctly. Note
// that this is testing the behavior of the FakeVideoSendStream, which mimics
// the calls to CreateEncoderStreams to get the VideoStreams.
EXPECT_EQ(absl::optional<double>(new_bitrate_priority),
video_send_stream->GetVideoStreams()[0].bitrate_priority);
}
// Tests that the RTCRtpEncodingParameters.bitrate_priority is set for the
// VideoChannel and the value propogates to the video encoder with all simulcast
// streams.
TEST_F(WebRtcVideoChannelTest, SetRtpSendParametersPrioritySimulcastStreams) {
// Create the stream params with multiple ssrcs for simulcast.
const size_t kNumSimulcastStreams = 3;
std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
StreamParams stream_params = CreateSimStreamParams("cname", ssrcs);
AddSendStream(stream_params);
uint32_t primary_ssrc = stream_params.first_ssrc();
// Using the FakeVideoCapturerWithTaskQueue, we manually send a full size
// frame. This creates multiple VideoStreams for all simulcast layers when
// reconfiguring, and allows us to test this behavior.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(primary_ssrc, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(cricket::VideoFormat(
1920, 1080, cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420)));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters =
channel_->GetRtpSendParameters(primary_ssrc);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
EXPECT_EQ(webrtc::kDefaultBitratePriority,
parameters.encodings[0].bitrate_priority);
// Change the value and set it on the VideoChannel.
double new_bitrate_priority = 2.0;
parameters.encodings[0].bitrate_priority = new_bitrate_priority;
EXPECT_TRUE(channel_->SetRtpSendParameters(primary_ssrc, parameters).ok());
// Verify that the encoding parameters priority is set on the VideoChannel.
parameters = channel_->GetRtpSendParameters(primary_ssrc);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
EXPECT_EQ(new_bitrate_priority, parameters.encodings[0].bitrate_priority);
// Verify that the new value propagated down to the encoder.
std::vector<FakeVideoSendStream*> video_send_streams =
fake_call_->GetVideoSendStreams();
EXPECT_EQ(1UL, video_send_streams.size());
FakeVideoSendStream* video_send_stream = video_send_streams.front();
// Check that the WebRtcVideoSendStream updated the VideoEncoderConfig
// appropriately.
EXPECT_EQ(kNumSimulcastStreams,
video_send_stream->GetEncoderConfig().number_of_streams);
EXPECT_EQ(new_bitrate_priority,
video_send_stream->GetEncoderConfig().bitrate_priority);
// Check that the vector of VideoStreams also propagated correctly. The
// FakeVideoSendStream calls CreateEncoderStreams, and we are testing that
// these are created appropriately for the simulcast case.
EXPECT_EQ(kNumSimulcastStreams, video_send_stream->GetVideoStreams().size());
EXPECT_EQ(absl::optional<double>(new_bitrate_priority),
video_send_stream->GetVideoStreams()[0].bitrate_priority);
// Since we are only setting bitrate priority per-sender, the other
// VideoStreams should have a bitrate priority of 0.
EXPECT_EQ(absl::nullopt,
video_send_stream->GetVideoStreams()[1].bitrate_priority);
EXPECT_EQ(absl::nullopt,
video_send_stream->GetVideoStreams()[2].bitrate_priority);
EXPECT_TRUE(channel_->SetVideoSend(primary_ssrc, nullptr, nullptr));
}
// RTCRtpEncodingParameters.network_priority must be one of a few values
// derived from the default priority, corresponding to very-low, low, medium,
// or high.
TEST_F(WebRtcVideoChannelTest, SetRtpSendParametersInvalidNetworkPriority) {
AddSendStream();
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1UL, parameters.encodings.size());
EXPECT_EQ(webrtc::kDefaultBitratePriority,
parameters.encodings[0].network_priority);
double good_values[] = {0.5, 1.0, 2.0, 4.0};
double bad_values[] = {-1.0, 0.0, 0.49, 0.51, 1.1, 3.99, 4.1, 5.0};
for (auto it : good_values) {
parameters.encodings[0].network_priority = it;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
}
for (auto it : bad_values) {
parameters.encodings[0].network_priority = it;
EXPECT_FALSE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
}
}
TEST_F(WebRtcVideoChannelTest, GetAndSetRtpSendParametersMaxFramerate) {
const size_t kNumSimulcastStreams = 3;
SetUpSimulcast(true, false);
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
for (const auto& encoding : parameters.encodings) {
EXPECT_FALSE(encoding.max_framerate);
}
// Change the value and set it on the VideoChannel.
parameters.encodings[0].max_framerate = 10;
parameters.encodings[1].max_framerate = 20;
parameters.encodings[2].max_framerate = 25;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the bitrates are set on the VideoChannel.
parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
EXPECT_EQ(10, parameters.encodings[0].max_framerate);
EXPECT_EQ(20, parameters.encodings[1].max_framerate);
EXPECT_EQ(25, parameters.encodings[2].max_framerate);
}
TEST_F(WebRtcVideoChannelTest,
SetRtpSendParametersNumTemporalLayersFailsForInvalidRange) {
const size_t kNumSimulcastStreams = 3;
SetUpSimulcast(true, false);
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
// Num temporal layers should be in the range [1, kMaxTemporalStreams].
parameters.encodings[0].num_temporal_layers = 0;
EXPECT_EQ(webrtc::RTCErrorType::INVALID_RANGE,
channel_->SetRtpSendParameters(last_ssrc_, parameters).type());
parameters.encodings[0].num_temporal_layers = webrtc::kMaxTemporalStreams + 1;
EXPECT_EQ(webrtc::RTCErrorType::INVALID_RANGE,
channel_->SetRtpSendParameters(last_ssrc_, parameters).type());
}
TEST_F(WebRtcVideoChannelTest,
SetRtpSendParametersNumTemporalLayersFailsForInvalidModification) {
const size_t kNumSimulcastStreams = 3;
SetUpSimulcast(true, false);
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
// No/all layers should be set.
parameters.encodings[0].num_temporal_layers = 1;
EXPECT_EQ(webrtc::RTCErrorType::INVALID_MODIFICATION,
channel_->SetRtpSendParameters(last_ssrc_, parameters).type());
// Different values not supported.
parameters.encodings[0].num_temporal_layers = 1;
parameters.encodings[1].num_temporal_layers = 2;
parameters.encodings[2].num_temporal_layers = 2;
EXPECT_EQ(webrtc::RTCErrorType::INVALID_MODIFICATION,
channel_->SetRtpSendParameters(last_ssrc_, parameters).type());
}
TEST_F(WebRtcVideoChannelTest, GetAndSetRtpSendParametersNumTemporalLayers) {
const size_t kNumSimulcastStreams = 3;
SetUpSimulcast(true, false);
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
for (const auto& encoding : parameters.encodings)
EXPECT_FALSE(encoding.num_temporal_layers);
// Change the value and set it on the VideoChannel.
parameters.encodings[0].num_temporal_layers = 3;
parameters.encodings[1].num_temporal_layers = 3;
parameters.encodings[2].num_temporal_layers = 3;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the number of temporal layers are set on the VideoChannel.
parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
EXPECT_EQ(3, parameters.encodings[0].num_temporal_layers);
EXPECT_EQ(3, parameters.encodings[1].num_temporal_layers);
EXPECT_EQ(3, parameters.encodings[2].num_temporal_layers);
}
TEST_F(WebRtcVideoChannelTest, NumTemporalLayersPropagatedToEncoder) {
const size_t kNumSimulcastStreams = 3;
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
// Send a full size frame so all simulcast layers are used when reconfiguring.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Get and set the rtp encoding parameters.
// Change the value and set it on the VideoChannel.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
parameters.encodings[0].num_temporal_layers = 2;
parameters.encodings[1].num_temporal_layers = 2;
parameters.encodings[2].num_temporal_layers = 2;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the new value is propagated down to the encoder.
// Check that WebRtcVideoSendStream updates VideoEncoderConfig correctly.
EXPECT_EQ(2, stream->num_encoder_reconfigurations());
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig().Copy();
EXPECT_EQ(kNumSimulcastStreams, encoder_config.number_of_streams);
EXPECT_EQ(kNumSimulcastStreams, encoder_config.simulcast_layers.size());
EXPECT_EQ(2UL, encoder_config.simulcast_layers[0].num_temporal_layers);
EXPECT_EQ(2UL, encoder_config.simulcast_layers[1].num_temporal_layers);
EXPECT_EQ(2UL, encoder_config.simulcast_layers[2].num_temporal_layers);
// FakeVideoSendStream calls CreateEncoderStreams, test that the vector of
// VideoStreams are created appropriately for the simulcast case.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
EXPECT_EQ(2UL, stream->GetVideoStreams()[0].num_temporal_layers);
EXPECT_EQ(2UL, stream->GetVideoStreams()[1].num_temporal_layers);
EXPECT_EQ(2UL, stream->GetVideoStreams()[2].num_temporal_layers);
// No parameter changed, encoder should not be reconfigured.
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
EXPECT_EQ(2, stream->num_encoder_reconfigurations());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest,
DefaultValuePropagatedToEncoderForUnsetNumTemporalLayers) {
const size_t kDefaultNumTemporalLayers = 3;
const size_t kNumSimulcastStreams = 3;
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
// Send a full size frame so all simulcast layers are used when reconfiguring.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Change rtp encoding parameters, num_temporal_layers not changed.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
parameters.encodings[0].min_bitrate_bps = 33000;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that no value is propagated down to the encoder.
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig().Copy();
EXPECT_EQ(kNumSimulcastStreams, encoder_config.number_of_streams);
EXPECT_EQ(kNumSimulcastStreams, encoder_config.simulcast_layers.size());
EXPECT_FALSE(encoder_config.simulcast_layers[0].num_temporal_layers);
EXPECT_FALSE(encoder_config.simulcast_layers[1].num_temporal_layers);
EXPECT_FALSE(encoder_config.simulcast_layers[2].num_temporal_layers);
// FakeVideoSendStream calls CreateEncoderStreams, test that the vector of
// VideoStreams are created appropriately for the simulcast case.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
EXPECT_EQ(kDefaultNumTemporalLayers,
stream->GetVideoStreams()[0].num_temporal_layers);
EXPECT_EQ(kDefaultNumTemporalLayers,
stream->GetVideoStreams()[1].num_temporal_layers);
EXPECT_EQ(kDefaultNumTemporalLayers,
stream->GetVideoStreams()[2].num_temporal_layers);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, MaxSimulcastFrameratePropagatedToEncoder) {
const size_t kNumSimulcastStreams = 3;
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
// Send a full size frame so all simulcast layers are used when reconfiguring.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Get and set the rtp encoding parameters.
// Change the value and set it on the VideoChannel.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
parameters.encodings[0].max_framerate = 15;
parameters.encodings[1].max_framerate = 25;
parameters.encodings[2].max_framerate = 20;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the new value propagated down to the encoder.
// Check that WebRtcVideoSendStream updates VideoEncoderConfig correctly.
EXPECT_EQ(2, stream->num_encoder_reconfigurations());
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig().Copy();
EXPECT_EQ(kNumSimulcastStreams, encoder_config.number_of_streams);
EXPECT_EQ(kNumSimulcastStreams, encoder_config.simulcast_layers.size());
EXPECT_EQ(15, encoder_config.simulcast_layers[0].max_framerate);
EXPECT_EQ(25, encoder_config.simulcast_layers[1].max_framerate);
EXPECT_EQ(20, encoder_config.simulcast_layers[2].max_framerate);
// FakeVideoSendStream calls CreateEncoderStreams, test that the vector of
// VideoStreams are created appropriately for the simulcast case.
// Currently the maximum |max_framerate| is used.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
EXPECT_EQ(25, stream->GetVideoStreams()[0].max_framerate);
EXPECT_EQ(25, stream->GetVideoStreams()[1].max_framerate);
EXPECT_EQ(25, stream->GetVideoStreams()[2].max_framerate);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest,
DefaultValuePropagatedToEncoderForUnsetFramerate) {
const size_t kNumSimulcastStreams = 3;
const std::vector<webrtc::VideoStream> kDefault = GetSimulcastBitrates720p();
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
// Send a full size frame so all simulcast layers are used when reconfiguring.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Get and set the rtp encoding parameters.
// Change the value and set it on the VideoChannel.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
parameters.encodings[0].max_framerate = 15;
parameters.encodings[2].max_framerate = 20;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the new value propagated down to the encoder.
// Check that WebRtcVideoSendStream updates VideoEncoderConfig correctly.
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig().Copy();
EXPECT_EQ(kNumSimulcastStreams, encoder_config.number_of_streams);
EXPECT_EQ(kNumSimulcastStreams, encoder_config.simulcast_layers.size());
EXPECT_EQ(15, encoder_config.simulcast_layers[0].max_framerate);
EXPECT_EQ(-1, encoder_config.simulcast_layers[1].max_framerate);
EXPECT_EQ(20, encoder_config.simulcast_layers[2].max_framerate);
// FakeVideoSendStream calls CreateEncoderStreams, test that the vector of
// VideoStreams are created appropriately for the simulcast case.
// The maximum |max_framerate| is used, kDefaultVideoMaxFramerate: 60.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
EXPECT_EQ(kDefaultVideoMaxFramerate,
stream->GetVideoStreams()[0].max_framerate);
EXPECT_EQ(kDefaultVideoMaxFramerate,
stream->GetVideoStreams()[1].max_framerate);
EXPECT_EQ(kDefaultVideoMaxFramerate,
stream->GetVideoStreams()[2].max_framerate);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, GetAndSetRtpSendParametersMinAndMaxBitrate) {
const size_t kNumSimulcastStreams = 3;
SetUpSimulcast(true, false);
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
for (const auto& encoding : parameters.encodings) {
EXPECT_FALSE(encoding.min_bitrate_bps);
EXPECT_FALSE(encoding.max_bitrate_bps);
}
// Change the value and set it on the VideoChannel.
parameters.encodings[0].min_bitrate_bps = 100000;
parameters.encodings[0].max_bitrate_bps = 200000;
parameters.encodings[1].min_bitrate_bps = 300000;
parameters.encodings[1].max_bitrate_bps = 400000;
parameters.encodings[2].min_bitrate_bps = 500000;
parameters.encodings[2].max_bitrate_bps = 600000;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the bitrates are set on the VideoChannel.
parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
EXPECT_EQ(100000, parameters.encodings[0].min_bitrate_bps);
EXPECT_EQ(200000, parameters.encodings[0].max_bitrate_bps);
EXPECT_EQ(300000, parameters.encodings[1].min_bitrate_bps);
EXPECT_EQ(400000, parameters.encodings[1].max_bitrate_bps);
EXPECT_EQ(500000, parameters.encodings[2].min_bitrate_bps);
EXPECT_EQ(600000, parameters.encodings[2].max_bitrate_bps);
}
TEST_F(WebRtcVideoChannelTest, SetRtpSendParametersFailsWithIncorrectBitrate) {
const size_t kNumSimulcastStreams = 3;
SetUpSimulcast(true, false);
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
// Max bitrate lower than min bitrate should fail.
parameters.encodings[2].min_bitrate_bps = 100000;
parameters.encodings[2].max_bitrate_bps = 100000 - 1;
EXPECT_EQ(webrtc::RTCErrorType::INVALID_RANGE,
channel_->SetRtpSendParameters(last_ssrc_, parameters).type());
}
// Test that min and max bitrate values set via RtpParameters are correctly
// propagated to the underlying encoder, and that the target is set to 3/4 of
// the maximum (3/4 was chosen because it's similar to the simulcast defaults
// that are used if no min/max are specified).
TEST_F(WebRtcVideoChannelTest, MinAndMaxSimulcastBitratePropagatedToEncoder) {
const size_t kNumSimulcastStreams = 3;
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
// Send a full size frame so all simulcast layers are used when reconfiguring.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Get and set the rtp encoding parameters.
// Change the value and set it on the VideoChannel.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
parameters.encodings[0].min_bitrate_bps = 100000;
parameters.encodings[0].max_bitrate_bps = 200000;
parameters.encodings[1].min_bitrate_bps = 300000;
parameters.encodings[1].max_bitrate_bps = 400000;
parameters.encodings[2].min_bitrate_bps = 500000;
parameters.encodings[2].max_bitrate_bps = 600000;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the new value propagated down to the encoder.
// Check that WebRtcVideoSendStream updates VideoEncoderConfig correctly.
EXPECT_EQ(2, stream->num_encoder_reconfigurations());
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig().Copy();
EXPECT_EQ(kNumSimulcastStreams, encoder_config.number_of_streams);
EXPECT_EQ(kNumSimulcastStreams, encoder_config.simulcast_layers.size());
EXPECT_EQ(100000, encoder_config.simulcast_layers[0].min_bitrate_bps);
EXPECT_EQ(200000, encoder_config.simulcast_layers[0].max_bitrate_bps);
EXPECT_EQ(300000, encoder_config.simulcast_layers[1].min_bitrate_bps);
EXPECT_EQ(400000, encoder_config.simulcast_layers[1].max_bitrate_bps);
EXPECT_EQ(500000, encoder_config.simulcast_layers[2].min_bitrate_bps);
EXPECT_EQ(600000, encoder_config.simulcast_layers[2].max_bitrate_bps);
// FakeVideoSendStream calls CreateEncoderStreams, test that the vector of
// VideoStreams are created appropriately for the simulcast case.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
// Target bitrate: 200000 * 3 / 4 = 150000.
EXPECT_EQ(100000, stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_EQ(150000, stream->GetVideoStreams()[0].target_bitrate_bps);
EXPECT_EQ(200000, stream->GetVideoStreams()[0].max_bitrate_bps);
// Target bitrate: 400000 * 3 / 4 = 300000.
EXPECT_EQ(300000, stream->GetVideoStreams()[1].min_bitrate_bps);
EXPECT_EQ(300000, stream->GetVideoStreams()[1].target_bitrate_bps);
EXPECT_EQ(400000, stream->GetVideoStreams()[1].max_bitrate_bps);
// Target bitrate: 600000 * 3 / 4 = 450000, less than min -> max.
EXPECT_EQ(500000, stream->GetVideoStreams()[2].min_bitrate_bps);
EXPECT_EQ(600000, stream->GetVideoStreams()[2].target_bitrate_bps);
EXPECT_EQ(600000, stream->GetVideoStreams()[2].max_bitrate_bps);
// No parameter changed, encoder should not be reconfigured.
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
EXPECT_EQ(2, stream->num_encoder_reconfigurations());
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
// Test to only specify the min or max bitrate value for a layer via
// RtpParameters. The unspecified min/max and target value should be set to the
// simulcast default that is used if no min/max are specified.
TEST_F(WebRtcVideoChannelTest, MinOrMaxSimulcastBitratePropagatedToEncoder) {
const size_t kNumSimulcastStreams = 3;
const std::vector<webrtc::VideoStream> kDefault = GetSimulcastBitrates720p();
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
// Send a full size frame so all simulcast layers are used when reconfiguring.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
// Change the value and set it on the VideoChannel.
// Layer 0: only configure min bitrate.
const int kMinBpsLayer0 = kDefault[0].min_bitrate_bps + 1;
parameters.encodings[0].min_bitrate_bps = kMinBpsLayer0;
// Layer 1: only configure max bitrate.
const int kMaxBpsLayer1 = kDefault[1].max_bitrate_bps - 1;
parameters.encodings[1].max_bitrate_bps = kMaxBpsLayer1;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the new value propagated down to the encoder.
// Check that WebRtcVideoSendStream updates VideoEncoderConfig correctly.
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig().Copy();
EXPECT_EQ(kNumSimulcastStreams, encoder_config.number_of_streams);
EXPECT_EQ(kNumSimulcastStreams, encoder_config.simulcast_layers.size());
EXPECT_EQ(kMinBpsLayer0, encoder_config.simulcast_layers[0].min_bitrate_bps);
EXPECT_EQ(-1, encoder_config.simulcast_layers[0].max_bitrate_bps);
EXPECT_EQ(-1, encoder_config.simulcast_layers[1].min_bitrate_bps);
EXPECT_EQ(kMaxBpsLayer1, encoder_config.simulcast_layers[1].max_bitrate_bps);
EXPECT_EQ(-1, encoder_config.simulcast_layers[2].min_bitrate_bps);
EXPECT_EQ(-1, encoder_config.simulcast_layers[2].max_bitrate_bps);
// FakeVideoSendStream calls CreateEncoderStreams, test that the vector of
// VideoStreams are created appropriately for the simulcast case.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
// Layer 0: min configured bitrate should overwrite min default.
EXPECT_EQ(kMinBpsLayer0, stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_EQ(kDefault[0].target_bitrate_bps,
stream->GetVideoStreams()[0].target_bitrate_bps);
EXPECT_EQ(kDefault[0].max_bitrate_bps,
stream->GetVideoStreams()[0].max_bitrate_bps);
// Layer 1: max configured bitrate should overwrite max default.
EXPECT_EQ(kDefault[1].min_bitrate_bps,
stream->GetVideoStreams()[1].min_bitrate_bps);
EXPECT_EQ(kDefault[1].target_bitrate_bps,
stream->GetVideoStreams()[1].target_bitrate_bps);
EXPECT_EQ(kMaxBpsLayer1, stream->GetVideoStreams()[1].max_bitrate_bps);
// Layer 2: min and max bitrate not configured, default expected.
EXPECT_EQ(kDefault[2].min_bitrate_bps,
stream->GetVideoStreams()[2].min_bitrate_bps);
EXPECT_EQ(kDefault[2].target_bitrate_bps,
stream->GetVideoStreams()[2].target_bitrate_bps);
EXPECT_EQ(kDefault[2].max_bitrate_bps,
stream->GetVideoStreams()[2].max_bitrate_bps);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
// Test that specifying the min (or max) bitrate value for a layer via
// RtpParameters above (or below) the simulcast default max (or min) adjusts the
// unspecified values accordingly.
TEST_F(WebRtcVideoChannelTest, SetMinAndMaxSimulcastBitrateAboveBelowDefault) {
const size_t kNumSimulcastStreams = 3;
const std::vector<webrtc::VideoStream> kDefault = GetSimulcastBitrates720p();
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
// Send a full size frame so all simulcast layers are used when reconfiguring.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Get and set the rtp encoding parameters.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
// Change the value and set it on the VideoChannel.
// For layer 0, set the min bitrate above the default max.
const int kMinBpsLayer0 = kDefault[0].max_bitrate_bps + 1;
parameters.encodings[0].min_bitrate_bps = kMinBpsLayer0;
// For layer 1, set the max bitrate below the default min.
const int kMaxBpsLayer1 = kDefault[1].min_bitrate_bps - 1;
parameters.encodings[1].max_bitrate_bps = kMaxBpsLayer1;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Verify that the new value propagated down to the encoder.
// FakeVideoSendStream calls CreateEncoderStreams, test that the vector of
// VideoStreams are created appropriately for the simulcast case.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
// Layer 0: Min bitrate above default max (target/max should be adjusted).
EXPECT_EQ(kMinBpsLayer0, stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_EQ(kMinBpsLayer0, stream->GetVideoStreams()[0].target_bitrate_bps);
EXPECT_EQ(kMinBpsLayer0, stream->GetVideoStreams()[0].max_bitrate_bps);
// Layer 1: Max bitrate below default min (min/target should be adjusted).
EXPECT_EQ(kMaxBpsLayer1, stream->GetVideoStreams()[1].min_bitrate_bps);
EXPECT_EQ(kMaxBpsLayer1, stream->GetVideoStreams()[1].target_bitrate_bps);
EXPECT_EQ(kMaxBpsLayer1, stream->GetVideoStreams()[1].max_bitrate_bps);
// Layer 2: min and max bitrate not configured, default expected.
EXPECT_EQ(kDefault[2].min_bitrate_bps,
stream->GetVideoStreams()[2].min_bitrate_bps);
EXPECT_EQ(kDefault[2].target_bitrate_bps,
stream->GetVideoStreams()[2].target_bitrate_bps);
EXPECT_EQ(kDefault[2].max_bitrate_bps,
stream->GetVideoStreams()[2].max_bitrate_bps);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest, BandwidthAboveTotalMaxBitrateGivenToMaxLayer) {
const size_t kNumSimulcastStreams = 3;
const std::vector<webrtc::VideoStream> kDefault = GetSimulcastBitrates720p();
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
// Send a full size frame so all simulcast layers are used when reconfiguring.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Set max bitrate for all but the highest layer.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
parameters.encodings[0].max_bitrate_bps = kDefault[0].max_bitrate_bps;
parameters.encodings[1].max_bitrate_bps = kDefault[1].max_bitrate_bps;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Set max bandwidth equal to total max bitrate.
send_parameters_.max_bandwidth_bps =
GetTotalMaxBitrateBps(stream->GetVideoStreams());
ExpectSetMaxBitrate(send_parameters_.max_bandwidth_bps);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
// No bitrate above the total max to give to the highest layer.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
EXPECT_EQ(kDefault[2].max_bitrate_bps,
stream->GetVideoStreams()[2].max_bitrate_bps);
// Set max bandwidth above the total max bitrate.
send_parameters_.max_bandwidth_bps =
GetTotalMaxBitrateBps(stream->GetVideoStreams()) + 1;
ExpectSetMaxBitrate(send_parameters_.max_bandwidth_bps);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
// The highest layer has no max bitrate set -> the bitrate above the total
// max should be given to the highest layer.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
EXPECT_EQ(send_parameters_.max_bandwidth_bps,
GetTotalMaxBitrateBps(stream->GetVideoStreams()));
EXPECT_EQ(kDefault[2].max_bitrate_bps + 1,
stream->GetVideoStreams()[2].max_bitrate_bps);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
TEST_F(WebRtcVideoChannelTest,
BandwidthAboveTotalMaxBitrateNotGivenToMaxLayerIfMaxBitrateSet) {
const size_t kNumSimulcastStreams = 3;
const std::vector<webrtc::VideoStream> kDefault = GetSimulcastBitrates720p();
EXPECT_EQ(kNumSimulcastStreams, kDefault.size());
FakeVideoSendStream* stream = SetUpSimulcast(true, false);
// Send a full size frame so all simulcast layers are used when reconfiguring.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(capturer.GetSupportedFormats()->front()));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Set max bitrate for the highest layer.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
parameters.encodings[2].max_bitrate_bps = kDefault[2].max_bitrate_bps;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Set max bandwidth above the total max bitrate.
send_parameters_.max_bandwidth_bps =
GetTotalMaxBitrateBps(stream->GetVideoStreams()) + 1;
ExpectSetMaxBitrate(send_parameters_.max_bandwidth_bps);
ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
// The highest layer has the max bitrate set -> the bitrate above the total
// max should not be given to the highest layer.
EXPECT_EQ(kNumSimulcastStreams, stream->GetVideoStreams().size());
EXPECT_EQ(*parameters.encodings[2].max_bitrate_bps,
stream->GetVideoStreams()[2].max_bitrate_bps);
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
// Test that min and max bitrate values set via RtpParameters are correctly
// propagated to the underlying encoder for a single stream.
TEST_F(WebRtcVideoChannelTest, MinAndMaxBitratePropagatedToEncoder) {
FakeVideoSendStream* stream = AddSendStream();
EXPECT_TRUE(channel_->SetSend(true));
EXPECT_TRUE(stream->IsSending());
// Set min and max bitrate.
webrtc::RtpParameters parameters = channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(1u, parameters.encodings.size());
parameters.encodings[0].min_bitrate_bps = 80000;
parameters.encodings[0].max_bitrate_bps = 150000;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
// Check that WebRtcVideoSendStream updates VideoEncoderConfig correctly.
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig().Copy();
EXPECT_EQ(1u, encoder_config.number_of_streams);
EXPECT_EQ(1u, encoder_config.simulcast_layers.size());
EXPECT_EQ(80000, encoder_config.simulcast_layers[0].min_bitrate_bps);
EXPECT_EQ(150000, encoder_config.simulcast_layers[0].max_bitrate_bps);
// FakeVideoSendStream calls CreateEncoderStreams, test that the vector of
// VideoStreams are created appropriately.
EXPECT_EQ(1u, stream->GetVideoStreams().size());
EXPECT_EQ(80000, stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_EQ(150000, stream->GetVideoStreams()[0].target_bitrate_bps);
EXPECT_EQ(150000, stream->GetVideoStreams()[0].max_bitrate_bps);
}
// Test the default min and max bitrate value are correctly propagated to the
// underlying encoder for a single stream (when the values are not set via
// RtpParameters).
TEST_F(WebRtcVideoChannelTest, DefaultMinAndMaxBitratePropagatedToEncoder) {
FakeVideoSendStream* stream = AddSendStream();
EXPECT_TRUE(channel_->SetSend(true));
EXPECT_TRUE(stream->IsSending());
// Check that WebRtcVideoSendStream updates VideoEncoderConfig correctly.
webrtc::VideoEncoderConfig encoder_config = stream->GetEncoderConfig().Copy();
EXPECT_EQ(1u, encoder_config.number_of_streams);
EXPECT_EQ(1u, encoder_config.simulcast_layers.size());
EXPECT_EQ(-1, encoder_config.simulcast_layers[0].min_bitrate_bps);
EXPECT_EQ(-1, encoder_config.simulcast_layers[0].max_bitrate_bps);
// FakeVideoSendStream calls CreateEncoderStreams, test that the vector of
// VideoStreams are created appropriately.
EXPECT_EQ(1u, stream->GetVideoStreams().size());
EXPECT_EQ(cricket::kMinVideoBitrateBps,
stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_GT(stream->GetVideoStreams()[0].max_bitrate_bps,
stream->GetVideoStreams()[0].min_bitrate_bps);
EXPECT_EQ(stream->GetVideoStreams()[0].max_bitrate_bps,
stream->GetVideoStreams()[0].target_bitrate_bps);
}
// Test that a stream will not be sending if its encoding is made inactive
// through SetRtpSendParameters.
TEST_F(WebRtcVideoChannelTest, SetRtpSendParametersOneEncodingActive) {
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).ok());
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).ok());
EXPECT_TRUE(stream->IsSending());
}
// Tests that when active is updated for any simulcast layer then the send
// stream's sending state will be updated and it will be reconfigured with the
// new appropriate active simulcast streams.
TEST_F(WebRtcVideoChannelTest, SetRtpSendParametersMultipleEncodingsActive) {
// Create the stream params with multiple ssrcs for simulcast.
const size_t kNumSimulcastStreams = 3;
std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
StreamParams stream_params = CreateSimStreamParams("cname", ssrcs);
FakeVideoSendStream* fake_video_send_stream = AddSendStream(stream_params);
uint32_t primary_ssrc = stream_params.first_ssrc();
// Using the FakeVideoCapturerWithTaskQueue, we manually send a full size
// frame. This allows us to test that ReconfigureEncoder is called
// appropriately.
cricket::FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
EXPECT_TRUE(channel_->SetVideoSend(primary_ssrc, &options, &capturer));
EXPECT_EQ(cricket::CS_RUNNING,
capturer.Start(cricket::VideoFormat(
1920, 1080, cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420)));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
// Check that all encodings are initially active.
webrtc::RtpParameters parameters =
channel_->GetRtpSendParameters(primary_ssrc);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
EXPECT_TRUE(parameters.encodings[0].active);
EXPECT_TRUE(parameters.encodings[1].active);
EXPECT_TRUE(parameters.encodings[2].active);
EXPECT_TRUE(fake_video_send_stream->IsSending());
// Only turn on only the middle stream.
parameters.encodings[0].active = false;
parameters.encodings[1].active = true;
parameters.encodings[2].active = false;
EXPECT_TRUE(channel_->SetRtpSendParameters(primary_ssrc, parameters).ok());
// Verify that the active fields are set on the VideoChannel.
parameters = channel_->GetRtpSendParameters(primary_ssrc);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
EXPECT_FALSE(parameters.encodings[0].active);
EXPECT_TRUE(parameters.encodings[1].active);
EXPECT_FALSE(parameters.encodings[2].active);
// Check that the VideoSendStream is updated appropriately. This means its
// send state was updated and it was reconfigured.
EXPECT_TRUE(fake_video_send_stream->IsSending());
std::vector<webrtc::VideoStream> simulcast_streams =
fake_video_send_stream->GetVideoStreams();
EXPECT_EQ(kNumSimulcastStreams, simulcast_streams.size());
EXPECT_FALSE(simulcast_streams[0].active);
EXPECT_TRUE(simulcast_streams[1].active);
EXPECT_FALSE(simulcast_streams[2].active);
// Turn off all streams.
parameters.encodings[0].active = false;
parameters.encodings[1].active = false;
parameters.encodings[2].active = false;
EXPECT_TRUE(channel_->SetRtpSendParameters(primary_ssrc, parameters).ok());
// Verify that the active fields are set on the VideoChannel.
parameters = channel_->GetRtpSendParameters(primary_ssrc);
EXPECT_EQ(kNumSimulcastStreams, parameters.encodings.size());
EXPECT_FALSE(parameters.encodings[0].active);
EXPECT_FALSE(parameters.encodings[1].active);
EXPECT_FALSE(parameters.encodings[2].active);
// Check that the VideoSendStream is off.
EXPECT_FALSE(fake_video_send_stream->IsSending());
simulcast_streams = fake_video_send_stream->GetVideoStreams();
EXPECT_EQ(kNumSimulcastStreams, simulcast_streams.size());
EXPECT_FALSE(simulcast_streams[0].active);
EXPECT_FALSE(simulcast_streams[1].active);
EXPECT_FALSE(simulcast_streams[2].active);
EXPECT_TRUE(channel_->SetVideoSend(primary_ssrc, nullptr, nullptr));
}
// Test that if a stream is reconfigured (due to a codec change or other
// change) while its encoding is still inactive, it doesn't start sending.
TEST_F(WebRtcVideoChannelTest,
InactiveStreamDoesntStartSendingWhenReconfigured) {
// Set an initial codec list, which will be modified later.
cricket::VideoSendParameters parameters1;
parameters1.codecs.push_back(GetEngineCodec("VP8"));
parameters1.codecs.push_back(GetEngineCodec("VP9"));
EXPECT_TRUE(channel_->SetSendParameters(parameters1));
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_EQ(1u, GetFakeSendStreams().size());
EXPECT_EQ(1, fake_call_->GetNumCreatedSendStreams());
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, parameters).ok());
EXPECT_FALSE(stream->IsSending());
// Reorder the codec list, causing the stream to be reconfigured.
cricket::VideoSendParameters parameters2;
parameters2.codecs.push_back(GetEngineCodec("VP9"));
parameters2.codecs.push_back(GetEngineCodec("VP8"));
EXPECT_TRUE(channel_->SetSendParameters(parameters2));
auto new_streams = GetFakeSendStreams();
// Assert that a new underlying stream was created due to the codec change.
// Otherwise, this test isn't testing what it set out to test.
EXPECT_EQ(1u, GetFakeSendStreams().size());
EXPECT_EQ(2, fake_call_->GetNumCreatedSendStreams());
// Verify that we still are not sending anything, due to the inactive
// encoding.
EXPECT_FALSE(new_streams[0]->IsSending());
}
// Test that GetRtpSendParameters returns the currently configured codecs.
TEST_F(WebRtcVideoChannelTest, GetRtpSendParametersCodecs) {
AddSendStream();
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP9"));
EXPECT_TRUE(channel_->SetSendParameters(parameters));
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
ASSERT_EQ(2u, rtp_parameters.codecs.size());
EXPECT_EQ(GetEngineCodec("VP8").ToCodecParameters(),
rtp_parameters.codecs[0]);
EXPECT_EQ(GetEngineCodec("VP9").ToCodecParameters(),
rtp_parameters.codecs[1]);
}
// Test that GetRtpSendParameters returns the currently configured RTCP CNAME.
TEST_F(WebRtcVideoChannelTest, GetRtpSendParametersRtcpCname) {
StreamParams params = StreamParams::CreateLegacy(kSsrc);
params.cname = "rtcpcname";
AddSendStream(params);
webrtc::RtpParameters rtp_parameters = channel_->GetRtpSendParameters(kSsrc);
EXPECT_STREQ("rtcpcname", rtp_parameters.rtcp.cname.c_str());
}
// Test that RtpParameters for send stream has one encoding and it has
// the correct SSRC.
TEST_F(WebRtcVideoChannelTest, GetRtpSendParametersSsrc) {
AddSendStream();
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
ASSERT_EQ(1u, rtp_parameters.encodings.size());
EXPECT_EQ(last_ssrc_, rtp_parameters.encodings[0].ssrc);
}
TEST_F(WebRtcVideoChannelTest, DetectRtpSendParameterHeaderExtensionsChange) {
AddSendStream();
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
rtp_parameters.header_extensions.emplace_back();
EXPECT_NE(0u, rtp_parameters.header_extensions.size());
webrtc::RTCError result =
channel_->SetRtpSendParameters(last_ssrc_, rtp_parameters);
EXPECT_EQ(webrtc::RTCErrorType::INVALID_MODIFICATION, result.type());
}
TEST_F(WebRtcVideoChannelTest, GetRtpSendParametersDegradationPreference) {
AddSendStream();
FakeVideoCapturerWithTaskQueue capturer;
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, &capturer));
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(rtp_parameters.degradation_preference,
webrtc::DegradationPreference::BALANCED);
rtp_parameters.degradation_preference =
webrtc::DegradationPreference::MAINTAIN_FRAMERATE;
EXPECT_TRUE(channel_->SetRtpSendParameters(last_ssrc_, rtp_parameters).ok());
webrtc::RtpParameters updated_rtp_parameters =
channel_->GetRtpSendParameters(last_ssrc_);
EXPECT_EQ(updated_rtp_parameters.degradation_preference,
webrtc::DegradationPreference::MAINTAIN_FRAMERATE);
// Remove the source since it will be destroyed before the channel
EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, nullptr, nullptr));
}
// Test that if we set/get parameters multiple times, we get the same results.
TEST_F(WebRtcVideoChannelTest, SetAndGetRtpSendParameters) {
AddSendStream();
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP9"));
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).ok());
// ... 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(WebRtcVideoChannelTest, GetRtpReceiveParametersCodecs) {
AddRecvStream();
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP9"));
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpReceiveParameters(last_ssrc_);
ASSERT_EQ(2u, rtp_parameters.codecs.size());
EXPECT_EQ(GetEngineCodec("VP8").ToCodecParameters(),
rtp_parameters.codecs[0]);
EXPECT_EQ(GetEngineCodec("VP9").ToCodecParameters(),
rtp_parameters.codecs[1]);
}
#if defined(WEBRTC_USE_H264)
TEST_F(WebRtcVideoChannelTest, GetRtpReceiveFmtpSprop) {
#else
TEST_F(WebRtcVideoChannelTest, DISABLED_GetRtpReceiveFmtpSprop) {
#endif
cricket::VideoRecvParameters parameters;
cricket::VideoCodec kH264sprop1(101, "H264");
kH264sprop1.SetParam(kH264FmtpSpropParameterSets, "uvw");
parameters.codecs.push_back(kH264sprop1);
cricket::VideoCodec kH264sprop2(102, "H264");
kH264sprop2.SetParam(kH264FmtpSpropParameterSets, "xyz");
parameters.codecs.push_back(kH264sprop2);
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
FakeVideoReceiveStream* recv_stream = AddRecvStream();
const webrtc::VideoReceiveStream::Config& cfg = recv_stream->GetConfig();
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpReceiveParameters(last_ssrc_);
ASSERT_EQ(2u, rtp_parameters.codecs.size());
EXPECT_EQ(kH264sprop1.ToCodecParameters(), rtp_parameters.codecs[0]);
ASSERT_EQ(2u, cfg.decoders.size());
EXPECT_EQ(101, cfg.decoders[0].payload_type);
EXPECT_EQ("H264", cfg.decoders[0].video_format.name);
const auto it0 =
cfg.decoders[0].video_format.parameters.find(kH264FmtpSpropParameterSets);
ASSERT_TRUE(it0 != cfg.decoders[0].video_format.parameters.end());
EXPECT_EQ("uvw", it0->second);
EXPECT_EQ(102, cfg.decoders[1].payload_type);
EXPECT_EQ("H264", cfg.decoders[1].video_format.name);
const auto it1 =
cfg.decoders[1].video_format.parameters.find(kH264FmtpSpropParameterSets);
ASSERT_TRUE(it1 != cfg.decoders[1].video_format.parameters.end());
EXPECT_EQ("xyz", it1->second);
}
// Test that RtpParameters for receive stream has one encoding and it has
// the correct SSRC.
TEST_F(WebRtcVideoChannelTest, GetRtpReceiveParametersSsrc) {
AddRecvStream();
webrtc::RtpParameters rtp_parameters =
channel_->GetRtpReceiveParameters(last_ssrc_);
ASSERT_EQ(1u, rtp_parameters.encodings.size());
EXPECT_EQ(last_ssrc_, rtp_parameters.encodings[0].ssrc);
}
// Test that if we set/get parameters multiple times, we get the same results.
TEST_F(WebRtcVideoChannelTest, SetAndGetRtpReceiveParameters) {
AddRecvStream();
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP9"));
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_));
}
// Test that GetRtpReceiveParameters returns parameters correctly when SSRCs
// aren't signaled. It should always return an empty "RtpEncodingParameters",
// even after a packet is received and the unsignaled SSRC is known.
TEST_F(WebRtcVideoChannelTest, GetRtpReceiveParametersWithUnsignaledSsrc) {
// Call necessary methods to configure receiving a default stream as
// soon as it arrives.
cricket::VideoRecvParameters parameters;
parameters.codecs.push_back(GetEngineCodec("VP8"));
parameters.codecs.push_back(GetEngineCodec("VP9"));
EXPECT_TRUE(channel_->SetRecvParameters(parameters));
// Call GetRtpReceiveParameters before configured to receive an unsignaled
// stream. Should return nothing.
EXPECT_EQ(webrtc::RtpParameters(), channel_->GetRtpReceiveParameters(0));
// Set a sink for an unsignaled stream.
cricket::FakeVideoRenderer renderer;
// Value of "0" means "unsignaled stream".
EXPECT_TRUE(channel_->SetSink(0, &renderer));
// Call GetRtpReceiveParameters before the SSRC is known. Value of "0"
// in this method means "unsignaled stream".
webrtc::RtpParameters rtp_parameters = channel_->GetRtpReceiveParameters(0);
ASSERT_EQ(1u, rtp_parameters.encodings.size());
EXPECT_FALSE(rtp_parameters.encodings[0].ssrc);
// Receive VP8 packet.
uint8_t data[kMinRtpPacketLen];
cricket::RtpHeader rtpHeader;
rtpHeader.payload_type = GetEngineCodec("VP8").id;
rtpHeader.seq_num = rtpHeader.timestamp = 0;
rtpHeader.ssrc = kIncomingUnsignalledSsrc;
cricket::SetRtpHeader(data, sizeof(data), rtpHeader);
rtc::CopyOnWriteBuffer packet(data, sizeof(data));
channel_->OnPacketReceived(&packet, /* packet_time_us */ -1);
// The |ssrc| member should still be unset.
rtp_parameters = channel_->GetRtpReceiveParameters(0);
ASSERT_EQ(1u, rtp_parameters.encodings.size());
EXPECT_FALSE(rtp_parameters.encodings[0].ssrc);
}
void WebRtcVideoChannelTest::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(WebRtcVideoChannelTest, ConfiguresLocalSsrc) {
TestReceiverLocalSsrcConfiguration(false);
}
TEST_F(WebRtcVideoChannelTest, ConfiguresLocalSsrcOnExistingReceivers) {
TestReceiverLocalSsrcConfiguration(true);
}
class WebRtcVideoChannelSimulcastTest : public testing::Test {
public:
WebRtcVideoChannelSimulcastTest()
: fake_call_(),
encoder_factory_(new cricket::FakeWebRtcVideoEncoderFactory),
decoder_factory_(new cricket::FakeWebRtcVideoDecoderFactory),
mock_rate_allocator_factory_(
new webrtc::MockVideoBitrateAllocatorFactory),
engine_(std::unique_ptr<cricket::FakeWebRtcVideoEncoderFactory>(
encoder_factory_),
std::unique_ptr<cricket::FakeWebRtcVideoDecoderFactory>(
decoder_factory_),
std::unique_ptr<webrtc::VideoBitrateAllocatorFactory>(
mock_rate_allocator_factory_)),
last_ssrc_(0) {}
void SetUp() override {
encoder_factory_->AddSupportedVideoCodecType("VP8");
channel_.reset(engine_.CreateMediaChannel(&fake_call_, GetMediaConfig(),
VideoOptions(),
webrtc::CryptoOptions()));
channel_->OnReadyToSend(true);
last_ssrc_ = 123;
}
protected:
void VerifySimulcastSettings(const VideoCodec& codec,
int capture_width,
int capture_height,
size_t num_configured_streams,
size_t expected_num_streams,
bool screenshare,
bool conference_mode) {
cricket::VideoSendParameters parameters;
parameters.codecs.push_back(codec);
parameters.conference_mode = conference_mode;
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);
AddSendStream(CreateSimStreamParams("cname", ssrcs));
// Send a full-size frame to trigger a stream reconfiguration to use all
// expected simulcast layers.
FakeVideoCapturerWithTaskQueue capturer;
VideoOptions options;
if (screenshare)
options.is_screencast = screenshare;
EXPECT_TRUE(channel_->SetVideoSend(ssrcs.front(), &options, &capturer));
// Fetch the latest stream since SetVideoSend() may recreate it if the
// screen content setting is changed.
FakeVideoSendStream* stream = fake_call_.GetVideoSendStreams().front();
EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(cricket::VideoFormat(
capture_width, capture_height,
cricket::VideoFormat::FpsToInterval(30),
cricket::FOURCC_I420)));
channel_->SetSend(true);
EXPECT_TRUE(capturer.CaptureFrame());
auto rtp_parameters = channel_->GetRtpSendParameters(kSsrcs3[0]);
EXPECT_EQ(num_configured_streams, rtp_parameters.encodings.size());
std::vector<webrtc::VideoStream> video_streams = stream->GetVideoStreams();
ASSERT_EQ(expected_num_streams, video_streams.size());
std::vector<webrtc::VideoStream> expected_streams;
if (conference_mode) {
expected_streams = GetSimulcastConfig(
num_configured_streams, capture_width, capture_height, 0,
webrtc::kDefaultBitratePriority, kDefaultQpMax,
kDefaultVideoMaxFramerate, screenshare, true);
if (screenshare) {
for (const webrtc::VideoStream& stream : expected_streams) {
// Never scale screen content.
EXPECT_EQ(stream.width, rtc::checked_cast<size_t>(capture_width));
EXPECT_EQ(stream.height, rtc::checked_cast<size_t>(capture_height));
}
}
} else {
webrtc::VideoStream stream;
stream.width = capture_width;
stream.height = capture_height;
stream.max_framerate = kDefaultVideoMaxFramerate;
stream.min_bitrate_bps = cricket::kMinVideoBitrateBps;
stream.target_bitrate_bps = stream.max_bitrate_bps =
GetMaxDefaultBitrateBps(capture_width, capture_height);
stream.max_qp = kDefaultQpMax;
expected_streams.push_back(stream);
}
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_EQ(conference_mode,
expected_streams[i].num_temporal_layers.has_value());
if (conference_mode) {
EXPECT_EQ(expected_streams[i].num_temporal_layers,
video_streams[i].num_temporal_layers);
}
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;
}
}
EXPECT_TRUE(channel_->SetVideoSend(ssrcs.front(), 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];
}
webrtc::RtcEventLogNullImpl event_log_;
FakeCall fake_call_;
cricket::FakeWebRtcVideoEncoderFactory* encoder_factory_;
cricket::FakeWebRtcVideoDecoderFactory* decoder_factory_;
webrtc::MockVideoBitrateAllocatorFactory* mock_rate_allocator_factory_;
WebRtcVideoEngine engine_;
std::unique_ptr<VideoMediaChannel> channel_;
uint32_t last_ssrc_;
};
TEST_F(WebRtcVideoChannelSimulcastTest, SetSendCodecsWith2SimulcastStreams) {
VerifySimulcastSettings(cricket::VideoCodec("VP8"), 640, 360, 2, 2, false,
true);
}
TEST_F(WebRtcVideoChannelSimulcastTest, SetSendCodecsWith3SimulcastStreams) {
VerifySimulcastSettings(cricket::VideoCodec("VP8"), 1280, 720, 3, 3, false,
true);
}
// Test that we normalize send codec format size in simulcast.
TEST_F(WebRtcVideoChannelSimulcastTest, SetSendCodecsWithOddSizeInSimulcast) {
VerifySimulcastSettings(cricket::VideoCodec("VP8"), 541, 271, 2, 2, false,
true);
}
TEST_F(WebRtcVideoChannelSimulcastTest, SetSendCodecsForScreenshare) {
VerifySimulcastSettings(cricket::VideoCodec("VP8"), 1280, 720, 3, 1, true,
false);
}
TEST_F(WebRtcVideoChannelSimulcastTest,
SetSendCodecsForConferenceModeScreenshare) {
webrtc::test::ScopedFieldTrials field_trials(
"WebRTC-SimulcastScreenshare/Disabled/");
VerifySimulcastSettings(cricket::VideoCodec("VP8"), 1280, 720, 3, 1, true,
true);
}
TEST_F(WebRtcVideoChannelSimulcastTest, SetSendCodecsForSimulcastScreenshare) {
VerifySimulcastSettings(cricket::VideoCodec("VP8"), 1280, 720, 3, 2, true,
true);
}
TEST_F(WebRtcVideoChannelSimulcastTest,
NoSimulcastScreenshareWithoutConference) {
VerifySimulcastSettings(cricket::VideoCodec("VP8"), 1280, 720, 3, 1, true,
false);
}
class WebRtcVideoFakeClock {
public:
WebRtcVideoFakeClock() {
fake_clock_.AdvanceTime(webrtc::TimeDelta::ms(1)); // avoid time=0
}
rtc::ScopedFakeClock fake_clock_;
};
// The fake clock needs to be initialized before the call, and not
// destroyed until after all threads spawned by the test have been stopped.
// This mixin ensures that.
class WebRtcVideoChannelTestWithClock : public WebRtcVideoFakeClock,
public WebRtcVideoChannelBaseTest {};
TEST_F(WebRtcVideoChannelTestWithClock, GetSources) {
uint8_t data1[] = {0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
EXPECT_EQ(0u, channel_->GetSources(kSsrc).size());
rtc::CopyOnWriteBuffer packet1(data1, sizeof(data1));
rtc::SetBE32(packet1.data() + 8, kSsrc);
channel_->SetSink(kDefaultReceiveSsrc, NULL);
EXPECT_TRUE(SetDefaultCodec());
EXPECT_TRUE(SetSend(true));
EXPECT_EQ(0, renderer_.num_rendered_frames());
channel_->OnPacketReceived(&packet1, rtc::PacketTime());
std::vector<webrtc::RtpSource> sources = channel_->GetSources(kSsrc);
EXPECT_EQ(1u, sources.size());
EXPECT_EQ(webrtc::RtpSourceType::SSRC, sources[0].source_type());
int64_t timestamp1 = sources[0].timestamp_ms();
// a new packet.
int64_t timeDeltaMs = 1;
fake_clock_.AdvanceTime(webrtc::TimeDelta::ms(timeDeltaMs));
channel_->OnPacketReceived(&packet1, rtc::PacketTime());
int64_t timestamp2 = channel_->GetSources(kSsrc)[0].timestamp_ms();
EXPECT_EQ(timestamp2, timestamp1 + timeDeltaMs);
// It only keeps 10s of history.
fake_clock_.AdvanceTime(webrtc::TimeDelta::seconds(10));
fake_clock_.AdvanceTime(webrtc::TimeDelta::ms(1));
EXPECT_EQ(0u, channel_->GetSources(kSsrc).size());
}
TEST_F(WebRtcVideoChannelTestWithClock, GetContributingSources) {
uint8_t data1[] = {0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
uint32_t kCsrc = 4321u;
EXPECT_EQ(0u, channel_->GetSources(kSsrc).size());
EXPECT_EQ(0u, channel_->GetSources(kCsrc).size());
rtc::CopyOnWriteBuffer packet1(data1, sizeof(data1));
rtc::SetBE32(packet1.data() + 8, kSsrc);
rtc::SetBE32(packet1.data() + 12, kCsrc);
channel_->SetSink(kDefaultReceiveSsrc, NULL);
EXPECT_TRUE(SetDefaultCodec());
EXPECT_TRUE(SetSend(true));
EXPECT_EQ(0, renderer_.num_rendered_frames());
channel_->OnPacketReceived(&packet1, rtc::PacketTime());
{
ASSERT_EQ(2u, channel_->GetSources(kSsrc).size());
EXPECT_EQ(0u, channel_->GetSources(kCsrc).size());
std::vector<webrtc::RtpSource> sources = channel_->GetSources(kSsrc);
EXPECT_EQ(sources[0].timestamp_ms(), sources[1].timestamp_ms());
// 1 SSRC and 1 CSRC.
EXPECT_EQ(1, std::count_if(sources.begin(), sources.end(),
[](const webrtc::RtpSource& source) {
return source.source_type() ==
webrtc::RtpSourceType::SSRC;
}));
EXPECT_EQ(1, std::count_if(sources.begin(), sources.end(),
[](const webrtc::RtpSource& source) {
return source.source_type() ==
webrtc::RtpSourceType::CSRC;
}));
}
int64_t timestamp1 = channel_->GetSources(kSsrc)[0].timestamp_ms();
// a new packet with only ssrc (i.e no csrc).
uint8_t data2[] = {0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
rtc::CopyOnWriteBuffer packet2(data2, sizeof(data2));
rtc::SetBE32(packet2.data() + 8, kSsrc);
int64_t timeDeltaMs = 1;
fake_clock_.AdvanceTime(webrtc::TimeDelta::ms(timeDeltaMs));
channel_->OnPacketReceived(&packet2, rtc::PacketTime());
{
ASSERT_EQ(2u, channel_->GetSources(kSsrc).size());
EXPECT_EQ(0u, channel_->GetSources(kCsrc).size());
std::vector<webrtc::RtpSource> sources = channel_->GetSources(kSsrc);
EXPECT_NE(sources[0].timestamp_ms(), sources[1].timestamp_ms());
// 1 SSRC and 1 CSRC.
EXPECT_EQ(1, std::count_if(sources.begin(), sources.end(),
[](const webrtc::RtpSource& source) {
return source.source_type() ==
webrtc::RtpSourceType::SSRC;
}));
EXPECT_EQ(1, std::count_if(sources.begin(), sources.end(),
[](const webrtc::RtpSource& source) {
return source.source_type() ==
webrtc::RtpSourceType::CSRC;
}));
auto ssrcSource = std::find_if(
sources.begin(), sources.end(), [](const webrtc::RtpSource& source) {
return source.source_type() == webrtc::RtpSourceType::SSRC;
});
auto csrcSource = std::find_if(
sources.begin(), sources.end(), [](const webrtc::RtpSource& source) {
return source.source_type() == webrtc::RtpSourceType::CSRC;
});
EXPECT_EQ(ssrcSource->timestamp_ms(), timestamp1 + timeDeltaMs);
EXPECT_EQ(csrcSource->timestamp_ms(), timestamp1);
}
// It only keeps 10s of history.
fake_clock_.AdvanceTime(webrtc::TimeDelta::seconds(10));
{
ASSERT_EQ(1u, channel_->GetSources(kSsrc).size());
EXPECT_EQ(0u, channel_->GetSources(kCsrc).size());
std::vector<webrtc::RtpSource> sources = channel_->GetSources(kSsrc);
EXPECT_EQ(1, std::count_if(sources.begin(), sources.end(),
[](const webrtc::RtpSource& source) {
return source.source_type() ==
webrtc::RtpSourceType::SSRC;
}));
EXPECT_EQ(0, std::count_if(sources.begin(), sources.end(),
[](const webrtc::RtpSource& source) {
return source.source_type() ==
webrtc::RtpSourceType::CSRC;
}));
}
fake_clock_.AdvanceTime(webrtc::TimeDelta::ms(1));
EXPECT_EQ(0u, channel_->GetSources(kSsrc).size());
EXPECT_EQ(0u, channel_->GetSources(kCsrc).size());
}
} // namespace cricket
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