1eb12934e7
Original change by isheriff@chromium.org: http://crrev.com/2387463002#ps40001 BUG=webrtc:6332 TBR=philipel@webrtc.org, stefan@webrtc.org Review URL: https://codereview.webrtc.org/2432633002 . Patch from Irfan Sheriff <isheriff@chromium.org>. Cr-Commit-Position: refs/heads/master@{#14673}
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/*
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* Copyright (c) 2016 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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#ifndef WEBRTC_MODULES_CONGESTION_CONTROLLER_PROBE_CONTROLLER_H_
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#define WEBRTC_MODULES_CONGESTION_CONTROLLER_PROBE_CONTROLLER_H_
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#include <initializer_list>
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#include "webrtc/base/criticalsection.h"
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#include "webrtc/common_types.h"
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#include "webrtc/modules/pacing/paced_sender.h"
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namespace webrtc {
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class Clock;
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// This class controls initiation of probing to estimate initial channel
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// capacity. There is also support for probing during a session when max
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// bitrate is adjusted by an application.
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class ProbeController {
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public:
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ProbeController(PacedSender* pacer, Clock* clock);
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void SetBitrates(int min_bitrate_bps,
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int start_bitrate_bps,
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int max_bitrate_bps);
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void SetEstimatedBitrate(int bitrate_bps);
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private:
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void InitiateProbing(std::initializer_list<int> bitrates_to_probe,
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int min_bitrate_to_probe_further_bps)
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EXCLUSIVE_LOCKS_REQUIRED(critsect_);
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enum class State {
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// Initial state where no probing has been triggered yet.
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kInit,
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// Waiting for probing results to continue further probing.
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kWaitingForProbingResult,
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// Probing is complete.
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kProbingComplete,
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};
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rtc::CriticalSection critsect_;
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PacedSender* const pacer_;
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Clock* const clock_;
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State state_ GUARDED_BY(critsect_);
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int min_bitrate_to_probe_further_bps_ GUARDED_BY(critsect_);
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int64_t time_last_probing_initiated_ms_ GUARDED_BY(critsect_);
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int estimated_bitrate_bps_ GUARDED_BY(critsect_);
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int max_bitrate_bps_ GUARDED_BY(critsect_);
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int64_t last_alr_probing_time_ GUARDED_BY(critsect_);
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RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(ProbeController);
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_CONGESTION_CONTROLLER_PROBE_CONTROLLER_H_
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