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/*
* Copyright (c) 2012 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 "video_engine/vie_channel_group.h"
#include "modules/bitrate_controller/include/bitrate_controller.h"
#include "modules/remote_bitrate_estimator/include/remote_bitrate_estimator.h"
#include "modules/rtp_rtcp/interface/rtp_rtcp.h"
#include "modules/utility/interface/process_thread.h"
#include "video_engine/call_stats.h"
#include "video_engine/encoder_state_feedback.h"
#include "video_engine/vie_channel.h"
#include "video_engine/vie_encoder.h"
#include "video_engine/vie_remb.h"
namespace webrtc {
ChannelGroup::ChannelGroup(ProcessThread* process_thread,
const OverUseDetectorOptions& options,
RemoteBitrateEstimator::EstimationMode mode)
: remb_(new VieRemb()),
bitrate_controller_(BitrateController::CreateBitrateController()),
call_stats_(new CallStats()),
remote_bitrate_estimator_(RemoteBitrateEstimator::Create(
options, mode, remb_.get(), Clock::GetRealTimeClock())),
encoder_state_feedback_(new EncoderStateFeedback()),
process_thread_(process_thread) {
call_stats_->RegisterStatsObserver(remote_bitrate_estimator_.get());
process_thread->RegisterModule(call_stats_.get());
process_thread->RegisterModule(remote_bitrate_estimator_.get());
}
ChannelGroup::~ChannelGroup() {
call_stats_->DeregisterStatsObserver(remote_bitrate_estimator_.get());
process_thread_->DeRegisterModule(call_stats_.get());
process_thread_->DeRegisterModule(remote_bitrate_estimator_.get());
assert(channels_.empty());
assert(!remb_->InUse());
}
void ChannelGroup::AddChannel(int channel_id) {
channels_.insert(channel_id);
}
void ChannelGroup::RemoveChannel(int channel_id, unsigned int ssrc) {
channels_.erase(channel_id);
remote_bitrate_estimator_->RemoveStream(ssrc);
}
bool ChannelGroup::HasChannel(int channel_id) {
return channels_.find(channel_id) != channels_.end();
}
bool ChannelGroup::Empty() {
return channels_.empty();
}
BitrateController* ChannelGroup::GetBitrateController() {
return bitrate_controller_.get();
}
RemoteBitrateEstimator* ChannelGroup::GetRemoteBitrateEstimator() {
return remote_bitrate_estimator_.get();
}
CallStats* ChannelGroup::GetCallStats() {
return call_stats_.get();
}
EncoderStateFeedback* ChannelGroup::GetEncoderStateFeedback() {
return encoder_state_feedback_.get();
}
bool ChannelGroup::SetChannelRembStatus(int channel_id,
bool sender,
bool receiver,
ViEChannel* channel,
ViEEncoder* encoder) {
// Update the channel state.
if (sender || receiver) {
if (!channel->EnableRemb(true)) {
return false;
}
} else if (channel) {
channel->EnableRemb(false);
}
// Update the REMB instance with necessary RTP modules.
RtpRtcp* rtp_module = channel->rtp_rtcp();
if (sender) {
remb_->AddRembSender(rtp_module);
} else {
remb_->RemoveRembSender(rtp_module);
}
if (receiver) {
remb_->AddReceiveChannel(rtp_module);
} else {
remb_->RemoveReceiveChannel(rtp_module);
}
return true;
}
} // namespace webrtc
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