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/*
* Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VIDEO_VIDEO_RECEIVE_STREAM_TIMEOUT_TRACKER_H_
#define VIDEO_VIDEO_RECEIVE_STREAM_TIMEOUT_TRACKER_H_
#include <functional>
#include "api/task_queue/task_queue_base.h"
#include "api/units/time_delta.h"
#include "api/units/timestamp.h"
#include "rtc_base/task_utils/repeating_task.h"
#include "system_wrappers/include/clock.h"
namespace webrtc {
class VideoReceiveStreamTimeoutTracker {
public:
struct Timeouts {
TimeDelta max_wait_for_keyframe;
TimeDelta max_wait_for_frame;
};
using TimeoutCallback = std::function<void(TimeDelta wait)>;
VideoReceiveStreamTimeoutTracker(Clock* clock,
TaskQueueBase* const bookkeeping_queue,
const Timeouts& timeouts,
TimeoutCallback callback);
~VideoReceiveStreamTimeoutTracker();
VideoReceiveStreamTimeoutTracker(const VideoReceiveStreamTimeoutTracker&) =
delete;
VideoReceiveStreamTimeoutTracker& operator=(
const VideoReceiveStreamTimeoutTracker&) = delete;
bool Running() const;
void Start(bool waiting_for_keyframe);
void Stop();
void SetWaitingForKeyframe();
void OnEncodedFrameReleased();
TimeDelta TimeUntilTimeout() const;
void SetTimeouts(Timeouts timeouts);
private:
TimeDelta TimeoutForNextFrame() const RTC_RUN_ON(bookkeeping_queue_) {
return waiting_for_keyframe_ ? timeouts_.max_wait_for_keyframe
: timeouts_.max_wait_for_frame;
}
TimeDelta HandleTimeoutTask();
Clock* const clock_;
TaskQueueBase* const bookkeeping_queue_;
Timeouts timeouts_ RTC_GUARDED_BY(bookkeeping_queue_);
const TimeoutCallback timeout_cb_;
RepeatingTaskHandle timeout_task_;
Timestamp last_frame_ = Timestamp::MinusInfinity();
Timestamp timeout_ = Timestamp::MinusInfinity();
bool waiting_for_keyframe_;
};
} // namespace webrtc
#endif // VIDEO_VIDEO_RECEIVE_STREAM_TIMEOUT_TRACKER_H_
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