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
|
/*
* 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 THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_BASIC_INSPECTOR_NODE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_BASIC_INSPECTOR_NODE_H_
#include "third_party/blink/renderer/modules/webaudio/audio_node.h"
namespace blink {
// AudioBasicInspectorNode is an AudioNode with one input and possibly one
// output where the output might not necessarily connect to another node's
// input. (It is up to the subclasses to create the output, if needed.) If the
// output is not connected to any other node, then the AudioBasicInspectorNode's
// processIfNecessary() function will be called automatically by
// BaseAudioContext before the end of each render quantum so that it can inspect
// the audio stream.
class AudioBasicInspectorHandler : public AudioHandler {
public:
AudioBasicInspectorHandler(NodeType, AudioNode&, float sample_rate);
// AudioHandler
void PullInputs(uint32_t frames_to_process) override;
void CheckNumberOfChannelsForInput(AudioNodeInput*) override;
// AudioNode
double TailTime() const override { return 0; }
double LatencyTime() const override { return 0; }
void UpdatePullStatusIfNeeded() override;
protected:
// When setting to true, AudioBasicInspectorHandler will be pulled
// automaticlly by BaseAudioContext before the end of each render quantum.
bool need_automatic_pull_;
};
class AudioBasicInspectorNode : public AudioNode {
protected:
explicit AudioBasicInspectorNode(BaseAudioContext& context)
: AudioNode(context) {}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_BASIC_INSPECTOR_NODE_H_
|
