chromium/third_party/webrtc/video/quality_limitation_reason_tracker.h

/*
 *  Copyright 2019 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_QUALITY_LIMITATION_REASON_TRACKER_H_
#define VIDEO_QUALITY_LIMITATION_REASON_TRACKER_H_

#include <map>

#include "common_video/include/quality_limitation_reason.h"
#include "system_wrappers/include/clock.h"

namespace webrtc {

// A tracker of quality limitation reasons. The quality limitation reason is the
// primary reason for limiting resolution and/or framerate (such as CPU or
// bandwidth limitations). The tracker keeps track of the current reason and the
// duration of time spent in each reason. See qualityLimitationReason[1],
// qualityLimitationDurations[2], and qualityLimitationResolutionChanges[3] in
// the webrtc-stats spec.
// Note that the specification defines the durations in seconds while the
// internal data structures defines it in milliseconds.
// [1]
// https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-qualitylimitationreason
// [2]
// https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-qualitylimitationdurations
// [3]
// https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-qualitylimitationresolutionchanges
class QualityLimitationReasonTracker { … };

}  // namespace webrtc

#endif  // VIDEO_QUALITY_LIMITATION_REASON_TRACKER_H_