| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 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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| 46 ChannelProvider(AudioSourceProvider* multiChannelProvider, unsigned numberOf
Channels) | 46 ChannelProvider(AudioSourceProvider* multiChannelProvider, unsigned numberOf
Channels) |
| 47 : m_multiChannelProvider(multiChannelProvider) | 47 : m_multiChannelProvider(multiChannelProvider) |
| 48 , m_numberOfChannels(numberOfChannels) | 48 , m_numberOfChannels(numberOfChannels) |
| 49 , m_currentChannel(0) | 49 , m_currentChannel(0) |
| 50 , m_framesToProcess(0) | 50 , m_framesToProcess(0) |
| 51 { | 51 { |
| 52 } | 52 } |
| 53 | 53 |
| 54 // provideInput() will be called once for each channel, starting with the fi
rst channel. | 54 // provideInput() will be called once for each channel, starting with the fi
rst channel. |
| 55 // Each time it's called, it will provide the next channel of data. | 55 // Each time it's called, it will provide the next channel of data. |
| 56 virtual void provideInput(AudioBus* bus, size_t framesToProcess) OVERRIDE | 56 virtual void provideInput(AudioBus* bus, size_t framesToProcess) override |
| 57 { | 57 { |
| 58 bool isBusGood = bus && bus->numberOfChannels() == 1; | 58 bool isBusGood = bus && bus->numberOfChannels() == 1; |
| 59 ASSERT(isBusGood); | 59 ASSERT(isBusGood); |
| 60 if (!isBusGood) | 60 if (!isBusGood) |
| 61 return; | 61 return; |
| 62 | 62 |
| 63 // Get the data from the multi-channel provider when the first channel a
sks for it. | 63 // Get the data from the multi-channel provider when the first channel a
sks for it. |
| 64 // For subsequent channels, we can just dish out the channel data from t
hat (stored in m_multiChannelBus). | 64 // For subsequent channels, we can just dish out the channel data from t
hat (stored in m_multiChannelBus). |
| 65 if (!m_currentChannel) { | 65 if (!m_currentChannel) { |
| 66 m_framesToProcess = framesToProcess; | 66 m_framesToProcess = framesToProcess; |
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| 114 // channels, since they all buffer in the same way and are processing th
e same number of frames. | 114 // channels, since they all buffer in the same way and are processing th
e same number of frames. |
| 115 m_kernels[channelIndex]->process(&channelProvider, | 115 m_kernels[channelIndex]->process(&channelProvider, |
| 116 destination->channel(channelIndex)->mut
ableData(), | 116 destination->channel(channelIndex)->mut
ableData(), |
| 117 framesToProcess); | 117 framesToProcess); |
| 118 } | 118 } |
| 119 } | 119 } |
| 120 | 120 |
| 121 } // namespace blink | 121 } // namespace blink |
| 122 | 122 |
| 123 #endif // ENABLE(WEB_AUDIO) | 123 #endif // ENABLE(WEB_AUDIO) |
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