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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef AudioBufferSourceNode_h_
#define AudioBufferSourceNode_h_
#include "AudioScheduledSourceNode.h"
#include "AudioBuffer.h"
namespace mozilla {
namespace dom {
struct AudioBufferSourceOptions;
class AudioParam;
class AudioBufferSourceNode final : public AudioScheduledSourceNode,
public MainThreadMediaTrackListener {
public:
static already_AddRefed<AudioBufferSourceNode> Create(
JSContext* aCx, AudioContext& aAudioContext,
const AudioBufferSourceOptions& aOptions);
void DestroyMediaTrack() override;
uint16_t NumberOfInputs() const final { return 0; }
AudioBufferSourceNode* AsAudioBufferSourceNode() override { return this; }
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioBufferSourceNode,
AudioScheduledSourceNode)
static already_AddRefed<AudioBufferSourceNode> Constructor(
const GlobalObject& aGlobal, AudioContext& aAudioContext,
const AudioBufferSourceOptions& aOptions) {
return Create(aGlobal.Context(), aAudioContext, aOptions);
}
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
void Start(double aWhen, double aOffset, const Optional<double>& aDuration,
ErrorResult& aRv);
void Start(double aWhen, ErrorResult& aRv) override;
void Stop(double aWhen, ErrorResult& aRv) override;
AudioBuffer* GetBuffer(JSContext* aCx) const { return mBuffer; }
void SetBuffer(JSContext* aCx, AudioBuffer* aBuffer, ErrorResult& aRv) {
if (aBuffer && mBufferSet) {
aRv.ThrowInvalidStateError(
"Cannot set the buffer attribute of an AudioBufferSourceNode "
"with an AudioBuffer more than once");
return;
}
if (aBuffer) {
mBufferSet = true;
}
mBuffer = aBuffer;
SendBufferParameterToTrack(aCx);
SendLoopParametersToTrack();
}
AudioParam* PlaybackRate() const { return mPlaybackRate; }
AudioParam* Detune() const { return mDetune; }
bool Loop() const { return mLoop; }
void SetLoop(bool aLoop) {
mLoop = aLoop;
SendLoopParametersToTrack();
}
double LoopStart() const { return mLoopStart; }
void SetLoopStart(double aStart) {
mLoopStart = aStart;
SendLoopParametersToTrack();
}
double LoopEnd() const { return mLoopEnd; }
void SetLoopEnd(double aEnd) {
mLoopEnd = aEnd;
SendLoopParametersToTrack();
}
void NotifyMainThreadTrackEnded() override;
const char* NodeType() const override { return "AudioBufferSourceNode"; }
size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
private:
explicit AudioBufferSourceNode(AudioContext* aContext);
~AudioBufferSourceNode() = default;
friend class AudioBufferSourceNodeEngine;
// START is sent during Start().
// STOP is sent during Stop().
// BUFFERSTART and DURATION are sent when SetBuffer() and Start() have
// been called (along with sending the buffer).
enum EngineParameters {
SAMPLE_RATE,
START,
STOP,
// BUFFERSTART is the "offset" passed to start(), multiplied by
// buffer.sampleRate.
BUFFERSTART,
DURATION,
LOOP,
LOOPSTART,
LOOPEND,
PLAYBACKRATE,
DETUNE
};
void SendLoopParametersToTrack();
void SendBufferParameterToTrack(JSContext* aCx);
void SendOffsetAndDurationParametersToTrack(AudioNodeTrack* aTrack);
double mLoopStart;
double mLoopEnd;
double mOffset;
double mDuration;
RefPtr<AudioBuffer> mBuffer;
RefPtr<AudioParam> mPlaybackRate;
RefPtr<AudioParam> mDetune;
bool mLoop;
bool mStartCalled;
bool mBufferSet;
};
} // namespace dom
} // namespace mozilla
#endif
|
