blob: 114e1a678981d8bb640027d6ec57d76d3491a1c1 [file] [log] [blame]
* 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.
* Usage: this class will register multiple RtcpBitrateObserver's one at each
* RTCP module. It will aggregate the results and run one bandwidth estimation
* and push the result to the encoder via VideoEncoderCallback.
#include "webrtc/modules/bitrate_controller/include/bitrate_controller.h"
#include <list>
#include <utility>
#include "webrtc/base/constructormagic.h"
#include "webrtc/base/criticalsection.h"
#include "webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.h"
namespace webrtc {
class BitrateControllerImpl : public BitrateController {
// TODO(perkj): BitrateObserver has been deprecated and is not used in WebRTC.
// |observer| is left for project that is not yet updated.
BitrateControllerImpl(Clock* clock,
BitrateObserver* observer,
RtcEventLog* event_log);
virtual ~BitrateControllerImpl() {}
bool AvailableBandwidth(uint32_t* bandwidth) const override;
RtcpBandwidthObserver* CreateRtcpBandwidthObserver() override;
// Deprecated
void SetStartBitrate(int start_bitrate_bps) override;
// Deprecated
void SetMinMaxBitrate(int min_bitrate_bps, int max_bitrate_bps) override;
void SetBitrates(int start_bitrate_bps,
int min_bitrate_bps,
int max_bitrate_bps) override;
void ResetBitrates(int bitrate_bps,
int min_bitrate_bps,
int max_bitrate_bps) override;
void UpdateDelayBasedEstimate(uint32_t bitrate_bps) override;
void SetReservedBitrate(uint32_t reserved_bitrate_bps) override;
// Returns true if the parameters have changed since the last call.
bool GetNetworkParameters(uint32_t* bitrate,
uint8_t* fraction_loss,
int64_t* rtt) override;
int64_t TimeUntilNextProcess() override;
void Process() override;
class RtcpBandwidthObserverImpl;
// Called by BitrateObserver's direct from the RTCP module.
void OnReceivedEstimatedBitrate(uint32_t bitrate);
void OnReceivedRtcpReceiverReport(uint8_t fraction_loss,
int64_t rtt,
int number_of_packets,
int64_t now_ms);
// Deprecated
void MaybeTriggerOnNetworkChanged();
void OnNetworkChanged(uint32_t bitrate,
uint8_t fraction_loss, // 0 - 255.
int64_t rtt) EXCLUSIVE_LOCKS_REQUIRED(critsect_);
// Used by process thread.
Clock* const clock_;
BitrateObserver* const observer_;
int64_t last_bitrate_update_ms_;
RtcEventLog* const event_log_;
rtc::CriticalSection critsect_;
SendSideBandwidthEstimation bandwidth_estimation_ GUARDED_BY(critsect_);
uint32_t reserved_bitrate_bps_ GUARDED_BY(critsect_);
uint32_t last_bitrate_bps_ GUARDED_BY(critsect_);
uint8_t last_fraction_loss_ GUARDED_BY(critsect_);
int64_t last_rtt_ms_ GUARDED_BY(critsect_);
uint32_t last_reserved_bitrate_bps_ GUARDED_BY(critsect_);
} // namespace webrtc