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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 "platform/audio/SincResampler.h" | 37 #include "platform/audio/SincResampler.h" |
38 #include "platform/audio/VectorMath.h" | 38 #include "platform/audio/VectorMath.h" |
39 #include "public/platform/Platform.h" | 39 #include "public/platform/Platform.h" |
40 #include "public/platform/WebAudioBus.h" | 40 #include "public/platform/WebAudioBus.h" |
41 #include "wtf/OwnPtr.h" | 41 #include "wtf/OwnPtr.h" |
42 | 42 |
43 #include <assert.h> | 43 #include <assert.h> |
44 #include <math.h> | 44 #include <math.h> |
45 #include <algorithm> | 45 #include <algorithm> |
46 | 46 |
47 namespace WebCore { | 47 namespace blink { |
48 | 48 |
49 using namespace VectorMath; | 49 using namespace VectorMath; |
50 | 50 |
51 const unsigned MaxBusChannels = 32; | 51 const unsigned MaxBusChannels = 32; |
52 | 52 |
53 PassRefPtr<AudioBus> AudioBus::create(unsigned numberOfChannels, size_t length,
bool allocate) | 53 PassRefPtr<AudioBus> AudioBus::create(unsigned numberOfChannels, size_t length,
bool allocate) |
54 { | 54 { |
55 ASSERT(numberOfChannels <= MaxBusChannels); | 55 ASSERT(numberOfChannels <= MaxBusChannels); |
56 if (numberOfChannels > MaxBusChannels) | 56 if (numberOfChannels > MaxBusChannels) |
57 return nullptr; | 57 return nullptr; |
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670 // If the bus needs no conversion then return as is. | 670 // If the bus needs no conversion then return as is. |
671 if ((!mixToMono || audioBus->numberOfChannels() == 1) && audioBus->sampleRat
e() == sampleRate) | 671 if ((!mixToMono || audioBus->numberOfChannels() == 1) && audioBus->sampleRat
e() == sampleRate) |
672 return audioBus; | 672 return audioBus; |
673 | 673 |
674 return AudioBus::createBySampleRateConverting(audioBus.get(), mixToMono, sam
pleRate); | 674 return AudioBus::createBySampleRateConverting(audioBus.get(), mixToMono, sam
pleRate); |
675 } | 675 } |
676 | 676 |
677 } // WebCore | 677 } // WebCore |
678 | 678 |
679 #endif // ENABLE(WEB_AUDIO) | 679 #endif // ENABLE(WEB_AUDIO) |
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