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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 |
| (...skipping 26 matching lines...) Expand all Loading... |
| 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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