1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_PLAYOUT_STATS_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_PLAYOUT_STATS_H_
#include "third_party/blink/renderer/bindings/core/v8/script_value.h"
#include "third_party/blink/renderer/core/dom/dom_high_res_time_stamp.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/webaudio/audio_context.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/member.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_track_platform.h"
namespace blink {
// https://github.com/WICG/web_audio_playout
class MODULES_EXPORT AudioPlayoutStats : public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
public:
explicit AudioPlayoutStats(AudioContext*);
DOMHighResTimeStamp fallbackFramesDuration(ScriptState* script_state);
uint32_t fallbackFramesEvents(ScriptState* script_state);
DOMHighResTimeStamp totalFramesDuration(ScriptState* script_state);
DOMHighResTimeStamp averageLatency(ScriptState* script_state);
DOMHighResTimeStamp minimumLatency(ScriptState* script_state);
DOMHighResTimeStamp maximumLatency(ScriptState* script_state);
void resetLatency(ScriptState* script_state);
ScriptObject toJSON(ScriptState* script_state);
void Trace(Visitor*) const override;
private:
// Updates the stats if they have not yet been updated during the current
// task.
void MaybeUpdateStats(ScriptState* script_state);
void OnMicrotask();
WeakMember<AudioContext> context_;
AudioFrameStatsAccumulator stats_;
bool stats_are_from_current_task_ = false;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_PLAYOUT_STATS_H_
|
