54 lines
2.0 KiB
C
54 lines
2.0 KiB
C
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/*
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* Copyright (c) 2018 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 MODULES_CONGESTION_CONTROLLER_RTP_CONTROL_HANDLER_H_
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#define MODULES_CONGESTION_CONTROLLER_RTP_CONTROL_HANDLER_H_
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#include <stdint.h>
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#include "absl/types/optional.h"
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#include "api/transport/network_types.h"
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#include "api/units/data_size.h"
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#include "api/units/time_delta.h"
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#include "modules/pacing/paced_sender.h"
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#include "rtc_base/constructor_magic.h"
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#include "rtc_base/synchronization/sequence_checker.h"
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namespace webrtc {
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// This is used to observe the network controller state and route calls to
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// the proper handler. It also keeps cached values for safe asynchronous use.
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// This makes sure that things running on the worker queue can't access state
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// in RtpTransportControllerSend, which would risk causing data race on
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// destruction unless members are properly ordered.
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class CongestionControlHandler {
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public:
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CongestionControlHandler();
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~CongestionControlHandler();
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void SetTargetRate(TargetTransferRate new_target_rate);
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void SetNetworkAvailability(bool network_available);
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void SetPacerQueue(TimeDelta expected_queue_time);
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absl::optional<TargetTransferRate> GetUpdate();
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private:
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absl::optional<TargetTransferRate> last_incoming_;
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absl::optional<TargetTransferRate> last_reported_;
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bool network_available_ = true;
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bool encoder_paused_in_last_report_ = false;
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const bool disable_pacer_emergency_stop_;
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int64_t pacer_expected_queue_ms_ = 0;
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SequenceChecker sequenced_checker_;
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RTC_DISALLOW_COPY_AND_ASSIGN(CongestionControlHandler);
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};
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} // namespace webrtc
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#endif // MODULES_CONGESTION_CONTROLLER_RTP_CONTROL_HANDLER_H_
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