mirror of
https://github.com/mollyim/webrtc.git
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70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
/*
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* Copyright (c) 2022 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 VIDEO_VIDEO_RECEIVE_STREAM_TIMEOUT_TRACKER_H_
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#define VIDEO_VIDEO_RECEIVE_STREAM_TIMEOUT_TRACKER_H_
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#include <functional>
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#include "api/task_queue/task_queue_base.h"
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#include "api/units/time_delta.h"
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#include "api/units/timestamp.h"
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#include "rtc_base/task_utils/repeating_task.h"
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#include "system_wrappers/include/clock.h"
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namespace webrtc {
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class VideoReceiveStreamTimeoutTracker {
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public:
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struct Timeouts {
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TimeDelta max_wait_for_keyframe;
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TimeDelta max_wait_for_frame;
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};
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using TimeoutCallback = std::function<void(TimeDelta wait)>;
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VideoReceiveStreamTimeoutTracker(Clock* clock,
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TaskQueueBase* const bookkeeping_queue,
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const Timeouts& timeouts,
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TimeoutCallback callback);
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~VideoReceiveStreamTimeoutTracker();
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VideoReceiveStreamTimeoutTracker(const VideoReceiveStreamTimeoutTracker&) =
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delete;
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VideoReceiveStreamTimeoutTracker& operator=(
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const VideoReceiveStreamTimeoutTracker&) = delete;
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bool Running() const;
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void Start(bool waiting_for_keyframe);
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void Stop();
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void SetWaitingForKeyframe();
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void OnEncodedFrameReleased();
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TimeDelta TimeUntilTimeout() const;
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void SetTimeouts(Timeouts timeouts);
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private:
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TimeDelta TimeoutForNextFrame() const RTC_RUN_ON(bookkeeping_queue_) {
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return waiting_for_keyframe_ ? timeouts_.max_wait_for_keyframe
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: timeouts_.max_wait_for_frame;
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}
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TimeDelta HandleTimeoutTask();
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Clock* const clock_;
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TaskQueueBase* const bookkeeping_queue_;
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Timeouts timeouts_ RTC_GUARDED_BY(bookkeeping_queue_);
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const TimeoutCallback timeout_cb_;
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RepeatingTaskHandle timeout_task_;
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Timestamp last_frame_ = Timestamp::MinusInfinity();
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Timestamp timeout_ = Timestamp::MinusInfinity();
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bool waiting_for_keyframe_;
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};
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} // namespace webrtc
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#endif // VIDEO_VIDEO_RECEIVE_STREAM_TIMEOUT_TRACKER_H_
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