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Side by Side Diff: Source/modules/webaudio/AudioBuffer.cpp

Issue 205173002: Move webaudio to oilpan (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 9 months ago
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1 /* 1 /*
2 * Copyright (C) 2010 Google Inc. All rights reserved. 2 * Copyright (C) 2010 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 7 *
8 * 1. Redistributions of source code must retain the above copyright 8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright 10 * 2. Redistributions in binary form must reproduce the above copyright
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43 float AudioBuffer::minAllowedSampleRate() 43 float AudioBuffer::minAllowedSampleRate()
44 { 44 {
45 return 22050; 45 return 22050;
46 } 46 }
47 47
48 float AudioBuffer::maxAllowedSampleRate() 48 float AudioBuffer::maxAllowedSampleRate()
49 { 49 {
50 return 96000; 50 return 96000;
51 } 51 }
52 52
53 PassRefPtr<AudioBuffer> AudioBuffer::create(unsigned numberOfChannels, size_t nu mberOfFrames, float sampleRate) 53 PassRefPtrWillBeRawPtr<AudioBuffer> AudioBuffer::create(unsigned numberOfChannel s, size_t numberOfFrames, float sampleRate)
54 { 54 {
55 if (sampleRate < minAllowedSampleRate() || sampleRate > maxAllowedSampleRate () || numberOfChannels > AudioContext::maxNumberOfChannels() || !numberOfFrames) 55 if (sampleRate < minAllowedSampleRate() || sampleRate > maxAllowedSampleRate () || numberOfChannels > AudioContext::maxNumberOfChannels() || !numberOfFrames)
56 return nullptr; 56 return nullptr;
57 57
58 RefPtr<AudioBuffer> buffer = adoptRef(new AudioBuffer(numberOfChannels, numb erOfFrames, sampleRate)); 58 RefPtrWillBeRawPtr<AudioBuffer> buffer = adoptRefWillBeNoop(new AudioBuffer( numberOfChannels, numberOfFrames, sampleRate));
59 59
60 if (!buffer->createdSuccessfully(numberOfChannels)) 60 if (!buffer->createdSuccessfully(numberOfChannels))
61 return nullptr; 61 return nullptr;
62 return buffer; 62 return buffer;
63 } 63 }
64 64
65 PassRefPtr<AudioBuffer> AudioBuffer::createFromAudioFileData(const void* data, s ize_t dataSize, bool mixToMono, float sampleRate) 65 PassRefPtrWillBeRawPtr<AudioBuffer> AudioBuffer::createFromAudioFileData(const v oid* data, size_t dataSize, bool mixToMono, float sampleRate)
66 { 66 {
67 RefPtr<AudioBus> bus = createBusFromInMemoryAudioFile(data, dataSize, mixToM ono, sampleRate); 67 RefPtr<AudioBus> bus = createBusFromInMemoryAudioFile(data, dataSize, mixToM ono, sampleRate);
68 if (bus.get()) { 68 if (bus.get()) {
69 RefPtr<AudioBuffer> buffer = adoptRef(new AudioBuffer(bus.get())); 69 RefPtrWillBeRawPtr<AudioBuffer> buffer = adoptRefWillBeNoop(new AudioBuf fer(bus.get()));
70 if (buffer->createdSuccessfully(bus->numberOfChannels())) 70 if (buffer->createdSuccessfully(bus->numberOfChannels()))
71 return buffer; 71 return buffer;
72 } 72 }
73 73
74 return nullptr; 74 return nullptr;
75 } 75 }
76 76
77 PassRefPtrWillBeRawPtr<AudioBuffer> AudioBuffer::createFromAudioBus(AudioBus* bu s)
78 {
79 if (!bus)
80 return nullptr;
81 RefPtrWillBeRawPtr<AudioBuffer> buffer = adoptRefWillBeNoop(new AudioBuffer( bus));
82 if (buffer->createdSuccessfully(bus->numberOfChannels()))
83 return buffer;
84 return nullptr;
85 }
86
77 bool AudioBuffer::createdSuccessfully(unsigned desiredNumberOfChannels) const 87 bool AudioBuffer::createdSuccessfully(unsigned desiredNumberOfChannels) const
78 { 88 {
79 return numberOfChannels() == desiredNumberOfChannels; 89 return numberOfChannels() == desiredNumberOfChannels;
80 } 90 }
81 91
82 AudioBuffer::AudioBuffer(unsigned numberOfChannels, size_t numberOfFrames, float sampleRate) 92 AudioBuffer::AudioBuffer(unsigned numberOfChannels, size_t numberOfFrames, float sampleRate)
83 : m_gain(1.0) 93 : m_gain(1.0)
84 , m_sampleRate(sampleRate) 94 , m_sampleRate(sampleRate)
85 , m_length(numberOfFrames) 95 , m_length(numberOfFrames)
86 { 96 {
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145 { 155 {
146 for (unsigned i = 0; i < m_channels.size(); ++i) { 156 for (unsigned i = 0; i < m_channels.size(); ++i) {
147 if (getChannelData(i)) 157 if (getChannelData(i))
148 getChannelData(i)->zeroRange(0, length()); 158 getChannelData(i)->zeroRange(0, length());
149 } 159 }
150 } 160 }
151 161
152 } // namespace WebCore 162 } // namespace WebCore
153 163
154 #endif // ENABLE(WEB_AUDIO) 164 #endif // ENABLE(WEB_AUDIO)
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