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1618095100
This CL simplifies a lot of code that can be cleaned up after the merge of RtpTransportControllerSend and SendSideCongestionController. In particular, the role of CongestionControlHandler is reduced to only handle the pacer pushback and stream pausing mechanism. Bug: webrtc:9586 Change-Id: Idbc1e968efd35e6df6129bc307f6bc1db18d20f2 Reviewed-on: https://webrtc-review.googlesource.com/c/113947 Reviewed-by: Christoffer Rodbro <crodbro@webrtc.org> Commit-Queue: Sebastian Jansson <srte@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25994}
55 lines
2 KiB
C++
55 lines
2 KiB
C++
/*
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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/constructormagic.h"
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#include "rtc_base/sequenced_task_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 SendSideCongestionController, 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 pacer_pushback_experiment_;
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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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double encoding_rate_ratio_ = 1.0;
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rtc::SequencedTaskChecker 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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