006d93d3c6
BUG= Review URL: https://codereview.webrtc.org/1411673003 Cr-Commit-Position: refs/heads/master@{#10531}
89 lines
3.1 KiB
C++
89 lines
3.1 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*
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* Usage: this class will register multiple RtcpBitrateObserver's one at each
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* RTCP module. It will aggregate the results and run one bandwidth estimation
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* and push the result to the encoder via VideoEncoderCallback.
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*/
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#ifndef WEBRTC_MODULES_BITRATE_CONTROLLER_BITRATE_CONTROLLER_IMPL_H_
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#define WEBRTC_MODULES_BITRATE_CONTROLLER_BITRATE_CONTROLLER_IMPL_H_
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#include "webrtc/modules/bitrate_controller/include/bitrate_controller.h"
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#include <list>
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#include <utility>
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#include "webrtc/base/criticalsection.h"
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#include "webrtc/base/scoped_ptr.h"
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#include "webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.h"
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namespace webrtc {
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class BitrateControllerImpl : public BitrateController {
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public:
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BitrateControllerImpl(Clock* clock, BitrateObserver* observer);
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virtual ~BitrateControllerImpl() {}
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bool AvailableBandwidth(uint32_t* bandwidth) const override;
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RtcpBandwidthObserver* CreateRtcpBandwidthObserver() override;
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void SetStartBitrate(int start_bitrate_bps) override;
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void SetMinMaxBitrate(int min_bitrate_bps,
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int max_bitrate_bps) override;
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void SetReservedBitrate(uint32_t reserved_bitrate_bps) override;
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void SetEventLog(RtcEventLog* event_log) override;
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int64_t TimeUntilNextProcess() override;
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int32_t Process() override;
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private:
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class RtcpBandwidthObserverImpl;
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// Called by BitrateObserver's direct from the RTCP module.
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void OnReceivedEstimatedBitrate(uint32_t bitrate);
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void OnReceivedRtcpReceiverReport(uint8_t fraction_loss,
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int64_t rtt,
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int number_of_packets,
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int64_t now_ms);
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void MaybeTriggerOnNetworkChanged();
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// Returns true if the parameters have changed since the last call.
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bool GetNetworkParameters(uint32_t* bitrate,
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uint8_t* fraction_loss,
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int64_t* rtt);
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void OnNetworkChanged(uint32_t bitrate,
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uint8_t fraction_loss, // 0 - 255.
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int64_t rtt) EXCLUSIVE_LOCKS_REQUIRED(critsect_);
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// Used by process thread.
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Clock* clock_;
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BitrateObserver* observer_;
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int64_t last_bitrate_update_ms_;
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mutable rtc::CriticalSection critsect_;
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SendSideBandwidthEstimation bandwidth_estimation_ GUARDED_BY(critsect_);
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uint32_t reserved_bitrate_bps_ GUARDED_BY(critsect_);
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uint32_t last_bitrate_bps_ GUARDED_BY(critsect_);
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uint8_t last_fraction_loss_ GUARDED_BY(critsect_);
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int64_t last_rtt_ms_ GUARDED_BY(critsect_);
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uint32_t last_reserved_bitrate_bps_ GUARDED_BY(critsect_);
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RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(BitrateControllerImpl);
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_BITRATE_CONTROLLER_BITRATE_CONTROLLER_IMPL_H_
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