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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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37 #include "core/platform/audio/AudioBus.h" | 37 #include "core/platform/audio/AudioBus.h" |
38 #include "core/platform/audio/AudioFileReader.h" | 38 #include "core/platform/audio/AudioFileReader.h" |
39 #include "modules/webaudio/AudioContext.h" | 39 #include "modules/webaudio/AudioContext.h" |
40 | 40 |
41 namespace WebCore { | 41 namespace WebCore { |
42 | 42 |
43 PassRefPtr<AudioBuffer> AudioBuffer::create(unsigned numberOfChannels, size_t nu
mberOfFrames, float sampleRate) | 43 PassRefPtr<AudioBuffer> AudioBuffer::create(unsigned numberOfChannels, size_t nu
mberOfFrames, float sampleRate) |
44 { | 44 { |
45 if (sampleRate < 22050 || sampleRate > 96000 || numberOfChannels > AudioCont
ext::maxNumberOfChannels() || !numberOfFrames) | 45 if (sampleRate < 22050 || sampleRate > 96000 || numberOfChannels > AudioCont
ext::maxNumberOfChannels() || !numberOfFrames) |
46 return 0; | 46 return 0; |
47 | 47 |
48 return adoptRef(new AudioBuffer(numberOfChannels, numberOfFrames, sampleRate
)); | 48 return adoptRef(new AudioBuffer(numberOfChannels, numberOfFrames, sampleRate
)); |
49 } | 49 } |
50 | 50 |
51 PassRefPtr<AudioBuffer> AudioBuffer::createFromAudioFileData(const void* data, s
ize_t dataSize, bool mixToMono, float sampleRate) | 51 PassRefPtr<AudioBuffer> AudioBuffer::createFromAudioFileData(const void* data, s
ize_t dataSize, bool mixToMono, float sampleRate) |
52 { | 52 { |
53 RefPtr<AudioBus> bus = createBusFromInMemoryAudioFile(data, dataSize, mixToM
ono, sampleRate); | 53 RefPtr<AudioBus> bus = createBusFromInMemoryAudioFile(data, dataSize, mixToM
ono, sampleRate); |
54 if (bus.get()) | 54 if (bus.get()) |
55 return adoptRef(new AudioBuffer(bus.get())); | 55 return adoptRef(new AudioBuffer(bus.get())); |
56 | 56 |
57 return 0; | 57 return 0; |
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114 { | 114 { |
115 for (unsigned i = 0; i < m_channels.size(); ++i) { | 115 for (unsigned i = 0; i < m_channels.size(); ++i) { |
116 if (getChannelData(i)) | 116 if (getChannelData(i)) |
117 getChannelData(i)->zeroRange(0, length()); | 117 getChannelData(i)->zeroRange(0, length()); |
118 } | 118 } |
119 } | 119 } |
120 | 120 |
121 } // namespace WebCore | 121 } // namespace WebCore |
122 | 122 |
123 #endif // ENABLE(WEB_AUDIO) | 123 #endif // ENABLE(WEB_AUDIO) |
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