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
|
/*
* Copyright (C) 2012, Intel Corporation. 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 AudioBasicInspectorNode_h
#define AudioBasicInspectorNode_h
#include "modules/webaudio/AudioNode.h"
namespace blink {
class AbstractAudioContext;
class ExceptionState;
// AudioBasicInspectorNode is an AudioNode with one input and one output where the output might not necessarily connect to another node's input.
// If the output is not connected to any other node, then the AudioBasicInspectorNode's processIfNecessary() function will be called automatically by
// AbstractAudioContext before the end of each render quantum so that it can inspect the audio stream.
class AudioBasicInspectorHandler : public AudioHandler {
public:
AudioBasicInspectorHandler(NodeType, AudioNode&, float sampleRate, unsigned outputChannelCount);
// AudioHandler
void pullInputs(size_t framesToProcess) final;
void checkNumberOfChannelsForInput(AudioNodeInput*) final;
void updatePullStatus();
private:
bool m_needAutomaticPull; // When setting to true, AudioBasicInspectorHandler will be pulled automaticlly by AbstractAudioContext before the end of each render quantum.
};
class AudioBasicInspectorNode : public AudioNode {
protected:
explicit AudioBasicInspectorNode(AbstractAudioContext& context) : AudioNode(context) { }
private:
// TODO(tkent): Should AudioBasicInspectorNode override other variants of
// connect() and disconnect()?
AudioNode* connect(AudioNode*, unsigned outputIndex, unsigned inputIndex, ExceptionState&) final;
void disconnect(unsigned outputIndex, ExceptionState&) final;
};
} // namespace blink
#endif // AudioBasicInspectorNode_h
|
