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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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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; |
67 m_multiChannelBus = adoptRef(new AudioBus(m_numberOfChannels, frames
ToProcess)); | 67 m_multiChannelBus = AudioBus::create(m_numberOfChannels, framesToPro
cess); |
68 m_multiChannelProvider->provideInput(m_multiChannelBus.get(), frames
ToProcess); | 68 m_multiChannelProvider->provideInput(m_multiChannelBus.get(), frames
ToProcess); |
69 } | 69 } |
70 | 70 |
71 // All channels must ask for the same amount. This should always be the
case, but let's just make sure. | 71 // All channels must ask for the same amount. This should always be the
case, but let's just make sure. |
72 bool isGood = m_multiChannelBus.get() && framesToProcess == m_framesToPr
ocess; | 72 bool isGood = m_multiChannelBus.get() && framesToProcess == m_framesToPr
ocess; |
73 ASSERT(isGood); | 73 ASSERT(isGood); |
74 if (!isGood) | 74 if (!isGood) |
75 return; | 75 return; |
76 | 76 |
77 // Copy the channel data from what we received from m_multiChannelProvid
er. | 77 // Copy the channel data from what we received from m_multiChannelProvid
er. |
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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 WebCore | 121 } // namespace WebCore |
122 | 122 |
123 #endif // ENABLE(WEB_AUDIO) | 123 #endif // ENABLE(WEB_AUDIO) |
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