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
|
/*
* Copyright (C) 2011, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef OfflineAudioDestinationNode_h
#define OfflineAudioDestinationNode_h
#include "modules/webaudio/AudioBuffer.h"
#include "modules/webaudio/AudioDestinationNode.h"
#include "public/platform/WebThread.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefPtr.h"
namespace blink {
class AudioBus;
class AudioContext;
class OfflineAudioDestinationNode final : public AudioDestinationNode {
public:
static OfflineAudioDestinationNode* create(AudioContext* context, AudioBuffer* renderTarget)
{
return new OfflineAudioDestinationNode(context, renderTarget);
}
virtual ~OfflineAudioDestinationNode();
// AudioNode
virtual void dispose() override;
virtual void initialize() override;
virtual void uninitialize() override;
// AudioDestinationNode
virtual void startRendering() override;
virtual void stopRendering() override;
virtual float sampleRate() const override { return m_renderTarget->sampleRate(); }
virtual void trace(Visitor*) override;
private:
OfflineAudioDestinationNode(AudioContext*, AudioBuffer* renderTarget);
void offlineRender();
void offlineRenderInternal();
// For completion callback on main thread.
void notifyComplete();
// This AudioNode renders into this AudioBuffer.
Member<AudioBuffer> m_renderTarget;
// Temporary AudioBus for each render quantum.
RefPtr<AudioBus> m_renderBus;
// Rendering thread.
OwnPtr<WebThread> m_renderThread;
bool m_startedRendering;
};
} // namespace blink
#endif // OfflineAudioDestinationNode_h
|
