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3900f21702
This allows for `config_.rtp.nack.rtp_history_ms` to be modified without deleting and recreating video receive streams. Bug: webrtc:11993 Change-Id: I8ba132b22fe0e6de03d1c42fc38a570cbe138817 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269301 Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org> Cr-Commit-Position: refs/heads/main@{#37701}
98 lines
3.1 KiB
C++
98 lines
3.1 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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#include "video/video_receive_stream_timeout_tracker.h"
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#include <algorithm>
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#include <utility>
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#include "rtc_base/logging.h"
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namespace webrtc {
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VideoReceiveStreamTimeoutTracker::VideoReceiveStreamTimeoutTracker(
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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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: clock_(clock),
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bookkeeping_queue_(bookkeeping_queue),
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timeouts_(timeouts),
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timeout_cb_(std::move(callback)) {}
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VideoReceiveStreamTimeoutTracker::~VideoReceiveStreamTimeoutTracker() {
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RTC_DCHECK(!timeout_task_.Running());
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}
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bool VideoReceiveStreamTimeoutTracker::Running() const {
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return timeout_task_.Running();
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}
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TimeDelta VideoReceiveStreamTimeoutTracker::TimeUntilTimeout() const {
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return std::max(timeout_ - clock_->CurrentTime(), TimeDelta::Zero());
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}
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void VideoReceiveStreamTimeoutTracker::Start(bool waiting_for_keyframe) {
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RTC_DCHECK_RUN_ON(bookkeeping_queue_);
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RTC_DCHECK(!timeout_task_.Running());
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waiting_for_keyframe_ = waiting_for_keyframe;
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TimeDelta timeout_delay = TimeoutForNextFrame();
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last_frame_ = clock_->CurrentTime();
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timeout_ = last_frame_ + timeout_delay;
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timeout_task_ =
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RepeatingTaskHandle::DelayedStart(bookkeeping_queue_, timeout_delay,
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[this] { return HandleTimeoutTask(); });
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}
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void VideoReceiveStreamTimeoutTracker::Stop() {
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timeout_task_.Stop();
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}
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void VideoReceiveStreamTimeoutTracker::SetWaitingForKeyframe() {
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RTC_DCHECK_RUN_ON(bookkeeping_queue_);
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waiting_for_keyframe_ = true;
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TimeDelta timeout_delay = TimeoutForNextFrame();
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if (clock_->CurrentTime() + timeout_delay < timeout_) {
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Stop();
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Start(waiting_for_keyframe_);
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}
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}
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void VideoReceiveStreamTimeoutTracker::OnEncodedFrameReleased() {
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RTC_DCHECK_RUN_ON(bookkeeping_queue_);
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// If we were waiting for a keyframe, then it has just been released.
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waiting_for_keyframe_ = false;
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last_frame_ = clock_->CurrentTime();
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timeout_ = last_frame_ + TimeoutForNextFrame();
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}
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TimeDelta VideoReceiveStreamTimeoutTracker::HandleTimeoutTask() {
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RTC_DCHECK_RUN_ON(bookkeeping_queue_);
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Timestamp now = clock_->CurrentTime();
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// `timeout_` is hit and we have timed out. Schedule the next timeout at
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// the timeout delay.
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if (now >= timeout_) {
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RTC_DLOG(LS_VERBOSE) << "Stream timeout at " << now;
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TimeDelta timeout_delay = TimeoutForNextFrame();
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timeout_ = now + timeout_delay;
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timeout_cb_(now - last_frame_);
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return timeout_delay;
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}
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// Otherwise, `timeout_` changed since we scheduled a timeout. Reschedule
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// a timeout check.
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return timeout_ - now;
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}
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void VideoReceiveStreamTimeoutTracker::SetTimeouts(Timeouts timeouts) {
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RTC_DCHECK_RUN_ON(bookkeeping_queue_);
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timeouts_ = timeouts;
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}
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} // namespace webrtc
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