webrtc/call/call_factory.cc
Vojin Ilic 504fc192d0 Add ability to pass factory for RtpTransportControllerSend to PeerConnectionFactoryDependencies.
This way we can have custom implementation of RtpTransportControllerSendInterface and pass it properly to Call.
Call relies on RtpTransportControllerSendInterface already so this is natural way to customize RTP related classes.

If there is custom factory present in dependencies it will be used, otherwise default factory will be used.

Intention behind this change is to have ability to have custom QoS with custom parameters.

Bug: webrtc:12778
Change-Id: I5b88957025621ef4bcd63eaa98c218ad213da9c8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/217769
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@nvidia.com>
Cr-Commit-Position: refs/heads/master@{#34181}
2021-06-01 06:57:31 +00:00

119 lines
4 KiB
C++

/*
* 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.
*/
#include "call/call_factory.h"
#include <stdio.h>
#include <memory>
#include <string>
#include <utility>
#include "absl/types/optional.h"
#include "api/test/simulated_network.h"
#include "call/call.h"
#include "call/degraded_call.h"
#include "call/rtp_transport_config.h"
#include "rtc_base/checks.h"
#include "system_wrappers/include/field_trial.h"
namespace webrtc {
namespace {
bool ParseConfigParam(std::string exp_name, int* field) {
std::string group = field_trial::FindFullName(exp_name);
if (group.empty())
return false;
return (sscanf(group.c_str(), "%d", field) == 1);
}
absl::optional<webrtc::BuiltInNetworkBehaviorConfig> ParseDegradationConfig(
bool send) {
std::string exp_prefix = "WebRTCFakeNetwork";
if (send) {
exp_prefix += "Send";
} else {
exp_prefix += "Receive";
}
webrtc::BuiltInNetworkBehaviorConfig config;
bool configured = false;
configured |=
ParseConfigParam(exp_prefix + "DelayMs", &config.queue_delay_ms);
configured |= ParseConfigParam(exp_prefix + "DelayStdDevMs",
&config.delay_standard_deviation_ms);
int queue_length = 0;
if (ParseConfigParam(exp_prefix + "QueueLength", &queue_length)) {
RTC_CHECK_GE(queue_length, 0);
config.queue_length_packets = queue_length;
configured = true;
}
configured |=
ParseConfigParam(exp_prefix + "CapacityKbps", &config.link_capacity_kbps);
configured |=
ParseConfigParam(exp_prefix + "LossPercent", &config.loss_percent);
int allow_reordering = 0;
if (ParseConfigParam(exp_prefix + "AllowReordering", &allow_reordering)) {
config.allow_reordering = true;
configured = true;
}
configured |= ParseConfigParam(exp_prefix + "AvgBurstLossLength",
&config.avg_burst_loss_length);
return configured
? absl::optional<webrtc::BuiltInNetworkBehaviorConfig>(config)
: absl::nullopt;
}
} // namespace
CallFactory::CallFactory() {
call_thread_.Detach();
}
Call* CallFactory::CreateCall(const Call::Config& config) {
RTC_DCHECK_RUN_ON(&call_thread_);
absl::optional<webrtc::BuiltInNetworkBehaviorConfig> send_degradation_config =
ParseDegradationConfig(true);
absl::optional<webrtc::BuiltInNetworkBehaviorConfig>
receive_degradation_config = ParseDegradationConfig(false);
RtpTransportConfig transportConfig = config.ExtractTransportConfig();
if (send_degradation_config || receive_degradation_config) {
return new DegradedCall(
std::unique_ptr<Call>(Call::Create(
config, Clock::GetRealTimeClock(),
SharedModuleThread::Create(
ProcessThread::Create("ModuleProcessThread"), nullptr),
config.rtp_transport_controller_send_factory->Create(
transportConfig, Clock::GetRealTimeClock(),
ProcessThread::Create("PacerThread")))),
send_degradation_config, receive_degradation_config,
config.task_queue_factory);
}
if (!module_thread_) {
module_thread_ = SharedModuleThread::Create(
ProcessThread::Create("SharedModThread"), [this]() {
RTC_DCHECK_RUN_ON(&call_thread_);
module_thread_ = nullptr;
});
}
return Call::Create(config, Clock::GetRealTimeClock(), module_thread_,
config.rtp_transport_controller_send_factory->Create(
transportConfig, Clock::GetRealTimeClock(),
ProcessThread::Create("PacerThread")));
}
std::unique_ptr<CallFactoryInterface> CreateCallFactory() {
return std::unique_ptr<CallFactoryInterface>(new CallFactory());
}
} // namespace webrtc