1 /*
2  *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_CONTROLLER_METRICS_H_
12 #define MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_CONTROLLER_METRICS_H_
13 
14 #include "api/optional.h"
15 #include "rtc_base/constructormagic.h"
16 
17 namespace webrtc {
18 
19 // Handles the reporting of metrics for the render delay controller.
20 class RenderDelayControllerMetrics {
21  public:
22   RenderDelayControllerMetrics() = default;
23 
24   // Updates the metric with new data.
25   void Update(rtc::Optional<size_t> delay_samples, size_t buffer_delay_blocks);
26 
27   // Returns true if the metrics have just been reported, otherwise false.
MetricsReported()28   bool MetricsReported() { return metrics_reported_; }
29 
30  private:
31   // Resets the metrics.
32   void ResetMetrics();
33 
34   size_t delay_blocks_ = 0;
35   int reliable_delay_estimate_counter_ = 0;
36   int delay_change_counter_ = 0;
37   int call_counter_ = 0;
38   int initial_call_counter_ = 0;
39   bool metrics_reported_ = false;
40   bool initial_update = true;
41 
42   RTC_DISALLOW_COPY_AND_ASSIGN(RenderDelayControllerMetrics);
43 };
44 
45 }  // namespace webrtc
46 
47 #endif  // MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_CONTROLLER_METRICS_H_
48