Remove DegradedCall - To be submitted after 2024-07-01

Bug: webrtc:343801362
Change-Id: Icae19ab2f4c87521483d25ae8d44c849c5f8ed2e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353140
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42892}
This commit is contained in:
Per K 2024-08-29 14:59:23 +00:00 committed by WebRTC LUCI CQ
parent a49abbb3b6
commit b4c1f2f6fc
8 changed files with 1 additions and 743 deletions

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@ -37,7 +37,6 @@ rtc_source_set("enable_media") {
":scoped_refptr",
"../call",
"../call:call_interfaces",
"../call:call_interfaces",
"../media:media_engine",
"../media:rtc_audio_video",
"../pc:media_factory",

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@ -18,7 +18,6 @@
#include "api/scoped_refptr.h"
#include "call/call.h"
#include "call/call_config.h"
#include "call/create_call.h"
#include "media/base/media_engine.h"
#include "media/engine/webrtc_video_engine.h"
#include "media/engine/webrtc_voice_engine.h"
@ -40,7 +39,7 @@ class MediaFactoryImpl : public MediaFactory {
~MediaFactoryImpl() override = default;
std::unique_ptr<Call> CreateCall(CallConfig config) override {
return webrtc::CreateCall(std::move(config));
return webrtc::Call::Create(std::move(config));
}
std::unique_ptr<MediaEngineInterface> CreateMediaEngine(

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@ -269,10 +269,6 @@ rtc_library("bitrate_allocator") {
rtc_library("call") {
sources = [
"call.cc",
"create_call.cc",
"create_call.h",
"degraded_call.cc",
"degraded_call.h",
"flexfec_receive_stream_impl.cc",
"flexfec_receive_stream_impl.h",
"receive_time_calculator.cc",

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@ -10,72 +10,11 @@
#include "call/create_call.h"
#include <stdio.h>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/types/optional.h"
#include "api/test/simulated_network.h"
#include "api/units/time_delta.h"
#include "call/call.h"
#include "call/degraded_call.h"
#include "rtc_base/checks.h"
#include "rtc_base/experiments/field_trial_list.h"
#include "rtc_base/experiments/field_trial_parser.h"
namespace webrtc {
namespace {
using TimeScopedNetworkConfig = DegradedCall::TimeScopedNetworkConfig;
std::vector<TimeScopedNetworkConfig> GetNetworkConfigs(
const FieldTrialsView& trials,
bool send) {
FieldTrialStructList<TimeScopedNetworkConfig> trials_list(
{FieldTrialStructMember("queue_length_packets",
[](TimeScopedNetworkConfig* p) {
// FieldTrialParser does not natively support
// size_t type, so use this ugly cast as
// workaround.
return reinterpret_cast<unsigned*>(
&p->queue_length_packets);
}),
FieldTrialStructMember(
"queue_delay_ms",
[](TimeScopedNetworkConfig* p) { return &p->queue_delay_ms; }),
FieldTrialStructMember("delay_standard_deviation_ms",
[](TimeScopedNetworkConfig* p) {
return &p->delay_standard_deviation_ms;
}),
FieldTrialStructMember(
"link_capacity_kbps",
[](TimeScopedNetworkConfig* p) { return &p->link_capacity_kbps; }),
FieldTrialStructMember(
"loss_percent",
[](TimeScopedNetworkConfig* p) { return &p->loss_percent; }),
FieldTrialStructMember(
"allow_reordering",
[](TimeScopedNetworkConfig* p) { return &p->allow_reordering; }),
FieldTrialStructMember("avg_burst_loss_length",
[](TimeScopedNetworkConfig* p) {
return &p->avg_burst_loss_length;
}),
FieldTrialStructMember(
"packet_overhead",
[](TimeScopedNetworkConfig* p) { return &p->packet_overhead; }),
FieldTrialStructMember(
"duration",
[](TimeScopedNetworkConfig* p) { return &p->duration; })},
{});
ParseFieldTrial({&trials_list},
trials.Lookup(send ? "WebRTC-FakeNetworkSendConfig"
: "WebRTC-FakeNetworkReceiveConfig"));
return trials_list.Get();
}
} // namespace
std::unique_ptr<Call> CreateCall(CallConfig config) {
std::vector<DegradedCall::TimeScopedNetworkConfig> send_degradation_configs =

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@ -1,25 +0,0 @@
/*
* Copyright 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef CALL_CREATE_CALL_H_
#define CALL_CREATE_CALL_H_
#include <memory>
#include "call/call.h"
#include "call/call_config.h"
namespace webrtc {
std::unique_ptr<Call> CreateCall(CallConfig config);
} // namespace webrtc
#endif // CALL_CREATE_CALL_H_

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@ -1,380 +0,0 @@
/*
* Copyright (c) 2018 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 "call/degraded_call.h"
#include <memory>
#include <utility>
#include "absl/strings/string_view.h"
#include "api/sequence_checker.h"
#include "modules/rtp_rtcp/source/rtp_util.h"
#include "rtc_base/thread.h"
namespace webrtc {
DegradedCall::FakeNetworkPipeOnTaskQueue::FakeNetworkPipeOnTaskQueue(
TaskQueueBase* task_queue,
rtc::scoped_refptr<PendingTaskSafetyFlag> call_alive,
Clock* clock,
std::unique_ptr<NetworkBehaviorInterface> network_behavior)
: clock_(clock),
task_queue_(task_queue),
call_alive_(std::move(call_alive)),
pipe_(clock, std::move(network_behavior)) {}
void DegradedCall::FakeNetworkPipeOnTaskQueue::SendRtp(
rtc::ArrayView<const uint8_t> packet,
const PacketOptions& options,
Transport* transport) {
pipe_.SendRtp(packet, options, transport);
Process();
}
void DegradedCall::FakeNetworkPipeOnTaskQueue::SendRtcp(
rtc::ArrayView<const uint8_t> packet,
Transport* transport) {
pipe_.SendRtcp(packet, transport);
Process();
}
void DegradedCall::FakeNetworkPipeOnTaskQueue::AddActiveTransport(
Transport* transport) {
pipe_.AddActiveTransport(transport);
}
void DegradedCall::FakeNetworkPipeOnTaskQueue::RemoveActiveTransport(
Transport* transport) {
pipe_.RemoveActiveTransport(transport);
}
bool DegradedCall::FakeNetworkPipeOnTaskQueue::Process() {
pipe_.Process();
auto time_to_next = pipe_.TimeUntilNextProcess();
if (!time_to_next) {
// Packet was probably sent immediately.
return false;
}
task_queue_->PostTask(SafeTask(call_alive_, [this, time_to_next] {
RTC_DCHECK_RUN_ON(task_queue_);
int64_t next_process_time = *time_to_next + clock_->TimeInMilliseconds();
if (!next_process_ms_ || next_process_time < *next_process_ms_) {
next_process_ms_ = next_process_time;
task_queue_->PostDelayedHighPrecisionTask(
SafeTask(call_alive_,
[this] {
RTC_DCHECK_RUN_ON(task_queue_);
if (!Process()) {
next_process_ms_.reset();
}
}),
TimeDelta::Millis(*time_to_next));
}
}));
return true;
}
DegradedCall::FakeNetworkPipeTransportAdapter::FakeNetworkPipeTransportAdapter(
FakeNetworkPipeOnTaskQueue* fake_network,
Call* call,
Clock* clock,
Transport* real_transport)
: network_pipe_(fake_network),
call_(call),
clock_(clock),
real_transport_(real_transport) {
network_pipe_->AddActiveTransport(real_transport);
}
DegradedCall::FakeNetworkPipeTransportAdapter::
~FakeNetworkPipeTransportAdapter() {
network_pipe_->RemoveActiveTransport(real_transport_);
}
bool DegradedCall::FakeNetworkPipeTransportAdapter::SendRtp(
rtc::ArrayView<const uint8_t> packet,
const PacketOptions& options) {
// A call here comes from the RTP stack (probably pacer). We intercept it and
// put it in the fake network pipe instead, but report to Call that is has
// been sent, so that the bandwidth estimator sees the delay we add.
network_pipe_->SendRtp(packet, options, real_transport_);
if (options.packet_id != -1) {
rtc::SentPacket sent_packet;
sent_packet.packet_id = options.packet_id;
sent_packet.send_time_ms = clock_->TimeInMilliseconds();
sent_packet.info.included_in_feedback = options.included_in_feedback;
sent_packet.info.included_in_allocation = options.included_in_allocation;
sent_packet.info.packet_size_bytes = packet.size();
sent_packet.info.packet_type = rtc::PacketType::kData;
call_->OnSentPacket(sent_packet);
}
return true;
}
bool DegradedCall::FakeNetworkPipeTransportAdapter::SendRtcp(
rtc::ArrayView<const uint8_t> packet) {
network_pipe_->SendRtcp(packet, real_transport_);
return true;
}
DegradedCall::DegradedCall(
std::unique_ptr<Call> call,
const std::vector<TimeScopedNetworkConfig>& send_configs,
const std::vector<TimeScopedNetworkConfig>& receive_configs)
: clock_(Clock::GetRealTimeClock()),
call_(std::move(call)),
call_alive_(PendingTaskSafetyFlag::CreateDetached()),
send_config_index_(0),
send_configs_(send_configs),
send_simulated_network_(nullptr),
receive_config_index_(0),
receive_configs_(receive_configs) {
if (!receive_configs_.empty()) {
auto network = std::make_unique<SimulatedNetwork>(receive_configs_[0]);
receive_simulated_network_ = network.get();
receive_pipe_ =
std::make_unique<webrtc::FakeNetworkPipe>(clock_, std::move(network));
receive_pipe_->SetReceiver(call_->Receiver());
if (receive_configs_.size() > 1) {
call_->network_thread()->PostDelayedTask(
SafeTask(call_alive_, [this] { UpdateReceiveNetworkConfig(); }),
receive_configs_[0].duration);
}
}
if (!send_configs_.empty()) {
auto network = std::make_unique<SimulatedNetwork>(send_configs_[0]);
send_simulated_network_ = network.get();
send_pipe_ = std::make_unique<FakeNetworkPipeOnTaskQueue>(
call_->network_thread(), call_alive_, clock_, std::move(network));
if (send_configs_.size() > 1) {
call_->network_thread()->PostDelayedTask(
SafeTask(call_alive_, [this] { UpdateSendNetworkConfig(); }),
send_configs_[0].duration);
}
}
}
DegradedCall::~DegradedCall() {
RTC_DCHECK_RUN_ON(call_->worker_thread());
// Thread synchronization is required to call `SetNotAlive`.
// Otherwise, when the `DegradedCall` object is destroyed but
// `SetNotAlive` has not yet been called,
// another Closure guarded by `call_alive_` may be called.
// TODO(https://crbug.com/webrtc/12649): Remove this block-invoke.
static_cast<rtc::Thread*>(call_->network_thread())
->BlockingCall(
[flag = std::move(call_alive_)]() mutable { flag->SetNotAlive(); });
}
AudioSendStream* DegradedCall::CreateAudioSendStream(
const AudioSendStream::Config& config) {
if (!send_configs_.empty()) {
auto transport_adapter = std::make_unique<FakeNetworkPipeTransportAdapter>(
send_pipe_.get(), call_.get(), clock_, config.send_transport);
AudioSendStream::Config degrade_config = config;
degrade_config.send_transport = transport_adapter.get();
AudioSendStream* send_stream = call_->CreateAudioSendStream(degrade_config);
if (send_stream) {
audio_send_transport_adapters_[send_stream] =
std::move(transport_adapter);
}
return send_stream;
}
return call_->CreateAudioSendStream(config);
}
void DegradedCall::DestroyAudioSendStream(AudioSendStream* send_stream) {
call_->DestroyAudioSendStream(send_stream);
audio_send_transport_adapters_.erase(send_stream);
}
AudioReceiveStreamInterface* DegradedCall::CreateAudioReceiveStream(
const AudioReceiveStreamInterface::Config& config) {
return call_->CreateAudioReceiveStream(config);
}
void DegradedCall::DestroyAudioReceiveStream(
AudioReceiveStreamInterface* receive_stream) {
call_->DestroyAudioReceiveStream(receive_stream);
}
VideoSendStream* DegradedCall::CreateVideoSendStream(
VideoSendStream::Config config,
VideoEncoderConfig encoder_config) {
std::unique_ptr<FakeNetworkPipeTransportAdapter> transport_adapter;
if (!send_configs_.empty()) {
transport_adapter = std::make_unique<FakeNetworkPipeTransportAdapter>(
send_pipe_.get(), call_.get(), clock_, config.send_transport);
config.send_transport = transport_adapter.get();
}
VideoSendStream* send_stream = call_->CreateVideoSendStream(
std::move(config), std::move(encoder_config));
if (send_stream && transport_adapter) {
video_send_transport_adapters_[send_stream] = std::move(transport_adapter);
}
return send_stream;
}
VideoSendStream* DegradedCall::CreateVideoSendStream(
VideoSendStream::Config config,
VideoEncoderConfig encoder_config,
std::unique_ptr<FecController> fec_controller) {
std::unique_ptr<FakeNetworkPipeTransportAdapter> transport_adapter;
if (!send_configs_.empty()) {
transport_adapter = std::make_unique<FakeNetworkPipeTransportAdapter>(
send_pipe_.get(), call_.get(), clock_, config.send_transport);
config.send_transport = transport_adapter.get();
}
VideoSendStream* send_stream = call_->CreateVideoSendStream(
std::move(config), std::move(encoder_config), std::move(fec_controller));
if (send_stream && transport_adapter) {
video_send_transport_adapters_[send_stream] = std::move(transport_adapter);
}
return send_stream;
}
void DegradedCall::DestroyVideoSendStream(VideoSendStream* send_stream) {
call_->DestroyVideoSendStream(send_stream);
video_send_transport_adapters_.erase(send_stream);
}
VideoReceiveStreamInterface* DegradedCall::CreateVideoReceiveStream(
VideoReceiveStreamInterface::Config configuration) {
return call_->CreateVideoReceiveStream(std::move(configuration));
}
void DegradedCall::DestroyVideoReceiveStream(
VideoReceiveStreamInterface* receive_stream) {
call_->DestroyVideoReceiveStream(receive_stream);
}
FlexfecReceiveStream* DegradedCall::CreateFlexfecReceiveStream(
const FlexfecReceiveStream::Config config) {
return call_->CreateFlexfecReceiveStream(std::move(config));
}
void DegradedCall::DestroyFlexfecReceiveStream(
FlexfecReceiveStream* receive_stream) {
call_->DestroyFlexfecReceiveStream(receive_stream);
}
void DegradedCall::AddAdaptationResource(
rtc::scoped_refptr<Resource> resource) {
call_->AddAdaptationResource(std::move(resource));
}
PacketReceiver* DegradedCall::Receiver() {
if (!receive_configs_.empty()) {
return this;
}
return call_->Receiver();
}
RtpTransportControllerSendInterface*
DegradedCall::GetTransportControllerSend() {
return call_->GetTransportControllerSend();
}
Call::Stats DegradedCall::GetStats() const {
return call_->GetStats();
}
const FieldTrialsView& DegradedCall::trials() const {
return call_->trials();
}
TaskQueueBase* DegradedCall::network_thread() const {
return call_->network_thread();
}
TaskQueueBase* DegradedCall::worker_thread() const {
return call_->worker_thread();
}
void DegradedCall::SignalChannelNetworkState(MediaType media,
NetworkState state) {
call_->SignalChannelNetworkState(media, state);
}
void DegradedCall::OnAudioTransportOverheadChanged(
int transport_overhead_per_packet) {
call_->OnAudioTransportOverheadChanged(transport_overhead_per_packet);
}
void DegradedCall::OnLocalSsrcUpdated(AudioReceiveStreamInterface& stream,
uint32_t local_ssrc) {
call_->OnLocalSsrcUpdated(stream, local_ssrc);
}
void DegradedCall::OnLocalSsrcUpdated(VideoReceiveStreamInterface& stream,
uint32_t local_ssrc) {
call_->OnLocalSsrcUpdated(stream, local_ssrc);
}
void DegradedCall::OnLocalSsrcUpdated(FlexfecReceiveStream& stream,
uint32_t local_ssrc) {
call_->OnLocalSsrcUpdated(stream, local_ssrc);
}
void DegradedCall::OnUpdateSyncGroup(AudioReceiveStreamInterface& stream,
absl::string_view sync_group) {
call_->OnUpdateSyncGroup(stream, sync_group);
}
void DegradedCall::OnSentPacket(const rtc::SentPacket& sent_packet) {
if (!send_configs_.empty()) {
// If we have a degraded send-transport, we have already notified call
// about the supposed network send time. Discard the actual network send
// time in order to properly fool the BWE.
return;
}
call_->OnSentPacket(sent_packet);
}
void DegradedCall::DeliverRtpPacket(
MediaType media_type,
RtpPacketReceived packet,
OnUndemuxablePacketHandler undemuxable_packet_handler) {
RTC_DCHECK_RUN_ON(&received_packet_sequence_checker_);
receive_pipe_->DeliverRtpPacket(media_type, std::move(packet),
std::move(undemuxable_packet_handler));
receive_pipe_->Process();
}
void DegradedCall::DeliverRtcpPacket(rtc::CopyOnWriteBuffer packet) {
RTC_DCHECK_RUN_ON(&received_packet_sequence_checker_);
receive_pipe_->DeliverRtcpPacket(std::move(packet));
receive_pipe_->Process();
}
void DegradedCall::SetClientBitratePreferences(
const webrtc::BitrateSettings& preferences) {
call_->SetClientBitratePreferences(preferences);
}
void DegradedCall::UpdateSendNetworkConfig() {
send_config_index_ = (send_config_index_ + 1) % send_configs_.size();
send_simulated_network_->SetConfig(send_configs_[send_config_index_]);
call_->network_thread()->PostDelayedTask(
SafeTask(call_alive_, [this] { UpdateSendNetworkConfig(); }),
send_configs_[send_config_index_].duration);
}
void DegradedCall::UpdateReceiveNetworkConfig() {
receive_config_index_ = (receive_config_index_ + 1) % receive_configs_.size();
receive_simulated_network_->SetConfig(
receive_configs_[receive_config_index_]);
call_->network_thread()->PostDelayedTask(
SafeTask(call_alive_, [this] { UpdateReceiveNetworkConfig(); }),
receive_configs_[receive_config_index_].duration);
}
} // namespace webrtc

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@ -1,201 +0,0 @@
/*
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef CALL_DEGRADED_CALL_H_
#define CALL_DEGRADED_CALL_H_
#include <stddef.h>
#include <stdint.h>
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "absl/strings/string_view.h"
#include "absl/types/optional.h"
#include "api/call/transport.h"
#include "api/fec_controller.h"
#include "api/media_types.h"
#include "api/rtp_headers.h"
#include "api/task_queue/pending_task_safety_flag.h"
#include "api/test/simulated_network.h"
#include "call/audio_receive_stream.h"
#include "call/audio_send_stream.h"
#include "call/call.h"
#include "call/fake_network_pipe.h"
#include "call/flexfec_receive_stream.h"
#include "call/packet_receiver.h"
#include "call/rtp_transport_controller_send_interface.h"
#include "call/video_receive_stream.h"
#include "call/video_send_stream.h"
#include "rtc_base/copy_on_write_buffer.h"
#include "rtc_base/network/sent_packet.h"
#include "system_wrappers/include/clock.h"
#include "test/network/simulated_network.h"
#include "video/config/video_encoder_config.h"
namespace webrtc {
class DegradedCall : public Call, private PacketReceiver {
public:
struct TimeScopedNetworkConfig : public BuiltInNetworkBehaviorConfig {
TimeDelta duration = TimeDelta::PlusInfinity();
};
explicit DegradedCall(
std::unique_ptr<Call> call,
const std::vector<TimeScopedNetworkConfig>& send_configs,
const std::vector<TimeScopedNetworkConfig>& receive_configs);
~DegradedCall() override;
// Implements Call.
AudioSendStream* CreateAudioSendStream(
const AudioSendStream::Config& config) override;
void DestroyAudioSendStream(AudioSendStream* send_stream) override;
AudioReceiveStreamInterface* CreateAudioReceiveStream(
const AudioReceiveStreamInterface::Config& config) override;
void DestroyAudioReceiveStream(
AudioReceiveStreamInterface* receive_stream) override;
VideoSendStream* CreateVideoSendStream(
VideoSendStream::Config config,
VideoEncoderConfig encoder_config) override;
VideoSendStream* CreateVideoSendStream(
VideoSendStream::Config config,
VideoEncoderConfig encoder_config,
std::unique_ptr<FecController> fec_controller) override;
void DestroyVideoSendStream(VideoSendStream* send_stream) override;
VideoReceiveStreamInterface* CreateVideoReceiveStream(
VideoReceiveStreamInterface::Config configuration) override;
void DestroyVideoReceiveStream(
VideoReceiveStreamInterface* receive_stream) override;
FlexfecReceiveStream* CreateFlexfecReceiveStream(
const FlexfecReceiveStream::Config config) override;
void DestroyFlexfecReceiveStream(
FlexfecReceiveStream* receive_stream) override;
void AddAdaptationResource(rtc::scoped_refptr<Resource> resource) override;
PacketReceiver* Receiver() override;
RtpTransportControllerSendInterface* GetTransportControllerSend() override;
Stats GetStats() const override;
const FieldTrialsView& trials() const override;
TaskQueueBase* network_thread() const override;
TaskQueueBase* worker_thread() const override;
void SignalChannelNetworkState(MediaType media, NetworkState state) override;
void OnAudioTransportOverheadChanged(
int transport_overhead_per_packet) override;
void OnLocalSsrcUpdated(AudioReceiveStreamInterface& stream,
uint32_t local_ssrc) override;
void OnLocalSsrcUpdated(VideoReceiveStreamInterface& stream,
uint32_t local_ssrc) override;
void OnLocalSsrcUpdated(FlexfecReceiveStream& stream,
uint32_t local_ssrc) override;
void OnUpdateSyncGroup(AudioReceiveStreamInterface& stream,
absl::string_view sync_group) override;
void OnSentPacket(const rtc::SentPacket& sent_packet) override;
protected:
// Implements PacketReceiver.
void DeliverRtpPacket(
MediaType media_type,
RtpPacketReceived packet,
OnUndemuxablePacketHandler undemuxable_packet_handler) override;
void DeliverRtcpPacket(rtc::CopyOnWriteBuffer packet) override;
private:
class FakeNetworkPipeOnTaskQueue {
public:
FakeNetworkPipeOnTaskQueue(
TaskQueueBase* task_queue,
rtc::scoped_refptr<PendingTaskSafetyFlag> call_alive,
Clock* clock,
std::unique_ptr<NetworkBehaviorInterface> network_behavior);
void SendRtp(rtc::ArrayView<const uint8_t> packet,
const PacketOptions& options,
Transport* transport);
void SendRtcp(rtc::ArrayView<const uint8_t> packet, Transport* transport);
void AddActiveTransport(Transport* transport);
void RemoveActiveTransport(Transport* transport);
private:
// Try to process packets on the fake network queue.
// Returns true if call resulted in a delayed process, false if queue empty.
bool Process();
Clock* const clock_;
TaskQueueBase* const task_queue_;
rtc::scoped_refptr<PendingTaskSafetyFlag> call_alive_;
FakeNetworkPipe pipe_;
absl::optional<int64_t> next_process_ms_ RTC_GUARDED_BY(&task_queue_);
};
// For audio/video send stream, a TransportAdapter instance is used to
// intercept packets to be sent, and put them into a common FakeNetworkPipe
// in such as way that they will eventually (unless dropped) be forwarded to
// the correct Transport for that stream.
class FakeNetworkPipeTransportAdapter : public Transport {
public:
FakeNetworkPipeTransportAdapter(FakeNetworkPipeOnTaskQueue* fake_network,
Call* call,
Clock* clock,
Transport* real_transport);
~FakeNetworkPipeTransportAdapter();
bool SendRtp(rtc::ArrayView<const uint8_t> packet,
const PacketOptions& options) override;
bool SendRtcp(rtc::ArrayView<const uint8_t> packet) override;
private:
FakeNetworkPipeOnTaskQueue* const network_pipe_;
Call* const call_;
Clock* const clock_;
Transport* const real_transport_;
};
void SetClientBitratePreferences(
const webrtc::BitrateSettings& preferences) override;
void UpdateSendNetworkConfig();
void UpdateReceiveNetworkConfig();
Clock* const clock_;
const std::unique_ptr<Call> call_;
// For cancelling tasks on the network thread when DegradedCall is destroyed
rtc::scoped_refptr<PendingTaskSafetyFlag> call_alive_;
size_t send_config_index_;
const std::vector<TimeScopedNetworkConfig> send_configs_;
SimulatedNetwork* send_simulated_network_;
std::unique_ptr<FakeNetworkPipeOnTaskQueue> send_pipe_;
std::map<AudioSendStream*, std::unique_ptr<FakeNetworkPipeTransportAdapter>>
audio_send_transport_adapters_;
std::map<VideoSendStream*, std::unique_ptr<FakeNetworkPipeTransportAdapter>>
video_send_transport_adapters_;
size_t receive_config_index_;
const std::vector<TimeScopedNetworkConfig> receive_configs_;
SimulatedNetwork* receive_simulated_network_;
SequenceChecker received_packet_sequence_checker_;
std::unique_ptr<FakeNetworkPipe> receive_pipe_
RTC_GUARDED_BY(received_packet_sequence_checker_);
};
} // namespace webrtc
#endif // CALL_DEGRADED_CALL_H_

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@ -41,20 +41,6 @@
namespace webrtc {
namespace {
static const int kDefaultTimeoutMs = 5000;
bool AddIceCandidates(PeerConnectionWrapper* peer,
std::vector<const IceCandidateInterface*> candidates) {
for (const auto candidate : candidates) {
if (!peer->pc()->AddIceCandidate(candidate)) {
return false;
}
}
return true;
}
} // namespace
using RTCConfiguration = PeerConnectionInterface::RTCConfiguration;
class PeerConnectionFieldTrialTest : public ::testing::Test {
@ -220,59 +206,4 @@ TEST_F(PeerConnectionFieldTrialTest, MAYBE_InjectDependencyDescriptor) {
EXPECT_TRUE(found2);
}
// Test that the ability to emulate degraded networks works without crashing.
TEST_F(PeerConnectionFieldTrialTest, ApplyFakeNetworkConfig) {
std::unique_ptr<test::ScopedKeyValueConfig> field_trials =
std::make_unique<test::ScopedKeyValueConfig>(
"WebRTC-FakeNetworkSendConfig/link_capacity_kbps:500/"
"WebRTC-FakeNetworkReceiveConfig/loss_percent:1/");
CreatePCFactory(std::move(field_trials));
WrapperPtr caller = CreatePeerConnection();
BitrateSettings bitrate_settings;
bitrate_settings.start_bitrate_bps = 1'000'000;
bitrate_settings.max_bitrate_bps = 1'000'000;
caller->pc()->SetBitrate(bitrate_settings);
FrameGeneratorCapturerVideoTrackSource::Config config;
auto video_track_source =
rtc::make_ref_counted<FrameGeneratorCapturerVideoTrackSource>(
config, clock_, /*is_screencast=*/false);
video_track_source->Start();
caller->AddTrack(pc_factory_->CreateVideoTrack(video_track_source, "v"));
WrapperPtr callee = CreatePeerConnection();
ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));
ASSERT_TRUE(
caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));
// Do the SDP negotiation, and also exchange ice candidates.
ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));
ASSERT_TRUE_WAIT(
caller->signaling_state() == PeerConnectionInterface::kStable,
kDefaultTimeoutMs);
ASSERT_TRUE_WAIT(caller->IsIceGatheringDone(), kDefaultTimeoutMs);
ASSERT_TRUE_WAIT(callee->IsIceGatheringDone(), kDefaultTimeoutMs);
// Connect an ICE candidate pairs.
ASSERT_TRUE(
AddIceCandidates(callee.get(), caller->observer()->GetAllCandidates()));
ASSERT_TRUE(
AddIceCandidates(caller.get(), callee->observer()->GetAllCandidates()));
// This means that ICE and DTLS are connected.
ASSERT_TRUE_WAIT(callee->IsIceConnected(), kDefaultTimeoutMs);
ASSERT_TRUE_WAIT(caller->IsIceConnected(), kDefaultTimeoutMs);
// Send packets for kDefaultTimeoutMs
WAIT(false, kDefaultTimeoutMs);
std::vector<const RTCOutboundRtpStreamStats*> outbound_rtp_stats =
caller->GetStats()->GetStatsOfType<RTCOutboundRtpStreamStats>();
ASSERT_GE(outbound_rtp_stats.size(), 1u);
ASSERT_TRUE(outbound_rtp_stats[0]->target_bitrate.has_value());
// Link capacity is limited to 500k, so BWE is expected to be close to 500k.
ASSERT_LE(*outbound_rtp_stats[0]->target_bitrate, 500'000 * 1.1);
}
} // namespace webrtc