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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 are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * 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 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef AudioDSPKernelProcessor_h | 31 #ifndef AudioDSPKernelProcessor_h |
32 #define AudioDSPKernelProcessor_h | 32 #define AudioDSPKernelProcessor_h |
33 | 33 |
34 #include "platform/audio/AudioBus.h" | 34 #include "platform/audio/AudioBus.h" |
35 #include "platform/audio/AudioProcessor.h" | 35 #include "platform/audio/AudioProcessor.h" |
36 #include "wtf/OwnPtr.h" | |
37 #include "wtf/PassOwnPtr.h" | |
38 #include "wtf/ThreadingPrimitives.h" | 36 #include "wtf/ThreadingPrimitives.h" |
39 #include "wtf/Vector.h" | 37 #include "wtf/Vector.h" |
| 38 #include <memory> |
40 | 39 |
41 namespace blink { | 40 namespace blink { |
42 | 41 |
43 class AudioBus; | 42 class AudioBus; |
44 class AudioDSPKernel; | 43 class AudioDSPKernel; |
45 class AudioProcessor; | 44 class AudioProcessor; |
46 | 45 |
47 // AudioDSPKernelProcessor processes one input -> one output (N channels each) | 46 // AudioDSPKernelProcessor processes one input -> one output (N channels each) |
48 // It uses one AudioDSPKernel object per channel to do the processing, thus ther
e is no cross-channel processing. | 47 // It uses one AudioDSPKernel object per channel to do the processing, thus ther
e is no cross-channel processing. |
49 // Despite this limitation it turns out to be a very common and useful type of p
rocessor. | 48 // Despite this limitation it turns out to be a very common and useful type of p
rocessor. |
50 | 49 |
51 class PLATFORM_EXPORT AudioDSPKernelProcessor : public AudioProcessor { | 50 class PLATFORM_EXPORT AudioDSPKernelProcessor : public AudioProcessor { |
52 public: | 51 public: |
53 // numberOfChannels may be later changed if object is not yet in an "initial
ized" state | 52 // numberOfChannels may be later changed if object is not yet in an "initial
ized" state |
54 AudioDSPKernelProcessor(float sampleRate, unsigned numberOfChannels); | 53 AudioDSPKernelProcessor(float sampleRate, unsigned numberOfChannels); |
55 | 54 |
56 // Subclasses create the appropriate type of processing kernel here. | 55 // Subclasses create the appropriate type of processing kernel here. |
57 // We'll call this to create a kernel for each channel. | 56 // We'll call this to create a kernel for each channel. |
58 virtual PassOwnPtr<AudioDSPKernel> createKernel() = 0; | 57 virtual std::unique_ptr<AudioDSPKernel> createKernel() = 0; |
59 | 58 |
60 // AudioProcessor methods | 59 // AudioProcessor methods |
61 void initialize() override; | 60 void initialize() override; |
62 void uninitialize() override; | 61 void uninitialize() override; |
63 void process(const AudioBus* source, AudioBus* destination, size_t framesToP
rocess) override; | 62 void process(const AudioBus* source, AudioBus* destination, size_t framesToP
rocess) override; |
64 void reset() override; | 63 void reset() override; |
65 void setNumberOfChannels(unsigned) override; | 64 void setNumberOfChannels(unsigned) override; |
66 unsigned numberOfChannels() const override { return m_numberOfChannels; } | 65 unsigned numberOfChannels() const override { return m_numberOfChannels; } |
67 | 66 |
68 double tailTime() const override; | 67 double tailTime() const override; |
69 double latencyTime() const override; | 68 double latencyTime() const override; |
70 | 69 |
71 protected: | 70 protected: |
72 Vector<OwnPtr<AudioDSPKernel>> m_kernels; | 71 Vector<std::unique_ptr<AudioDSPKernel>> m_kernels; |
73 mutable Mutex m_processLock; | 72 mutable Mutex m_processLock; |
74 bool m_hasJustReset; | 73 bool m_hasJustReset; |
75 }; | 74 }; |
76 | 75 |
77 } // namespace blink | 76 } // namespace blink |
78 | 77 |
79 #endif // AudioDSPKernelProcessor_h | 78 #endif // AudioDSPKernelProcessor_h |
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