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/*
* Copyright (c) 2015 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 MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_BITRATE_ESTIMATOR_SINGLE_STREAM_H_
#define MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_BITRATE_ESTIMATOR_SINGLE_STREAM_H_
#include <stddef.h>
#include <stdint.h>
#include <map>
#include <memory>
#include <vector>
#include "api/transport/field_trial_based_config.h"
#include "api/units/data_rate.h"
#include "api/units/time_delta.h"
#include "api/units/timestamp.h"
#include "modules/remote_bitrate_estimator/aimd_rate_control.h"
#include "modules/remote_bitrate_estimator/include/remote_bitrate_estimator.h"
#include "rtc_base/rate_statistics.h"
#include "rtc_base/synchronization/mutex.h"
#include "rtc_base/thread_annotations.h"
namespace webrtc {
class Clock;
struct RTPHeader;
class RemoteBitrateEstimatorSingleStream : public RemoteBitrateEstimator {
public:
RemoteBitrateEstimatorSingleStream(RemoteBitrateObserver* observer,
Clock* clock);
RemoteBitrateEstimatorSingleStream() = delete;
RemoteBitrateEstimatorSingleStream(
const RemoteBitrateEstimatorSingleStream&) = delete;
RemoteBitrateEstimatorSingleStream& operator=(
const RemoteBitrateEstimatorSingleStream&) = delete;
~RemoteBitrateEstimatorSingleStream() override;
void IncomingPacket(int64_t arrival_time_ms,
size_t payload_size,
const RTPHeader& header) override;
TimeDelta Process() override;
void OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) override;
void RemoveStream(uint32_t ssrc) override;
DataRate LatestEstimate() const override;
private:
struct Detector;
typedef std::map<uint32_t, Detector*> SsrcOveruseEstimatorMap;
// Triggers a new estimate calculation.
void UpdateEstimate(int64_t time_now) RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
void GetSsrcs(std::vector<uint32_t>* ssrcs) const
RTC_SHARED_LOCKS_REQUIRED(mutex_);
// Returns `remote_rate_` if the pointed to object exists,
// otherwise creates it.
AimdRateControl* GetRemoteRate() RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
Clock* const clock_;
const FieldTrialBasedConfig field_trials_;
SsrcOveruseEstimatorMap overuse_detectors_ RTC_GUARDED_BY(mutex_);
RateStatistics incoming_bitrate_ RTC_GUARDED_BY(mutex_);
uint32_t last_valid_incoming_bitrate_ RTC_GUARDED_BY(mutex_);
std::unique_ptr<AimdRateControl> remote_rate_ RTC_GUARDED_BY(mutex_);
RemoteBitrateObserver* const observer_ RTC_GUARDED_BY(mutex_);
mutable Mutex mutex_;
int64_t last_process_time_;
int64_t process_interval_ms_ RTC_GUARDED_BY(mutex_);
bool uma_recorded_;
};
} // namespace webrtc
#endif // MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_BITRATE_ESTIMATOR_SINGLE_STREAM_H_