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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 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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81 | 81 |
82 void DefaultAudioDestinationHandler::CreateDestination() { | 82 void DefaultAudioDestinationHandler::CreateDestination() { |
83 destination_ = AudioDestination::Create(*this, ChannelCount(), latency_hint_, | 83 destination_ = AudioDestination::Create(*this, ChannelCount(), latency_hint_, |
84 Context()->GetSecurityOrigin()); | 84 Context()->GetSecurityOrigin()); |
85 } | 85 } |
86 | 86 |
87 void DefaultAudioDestinationHandler::StartRendering() { | 87 void DefaultAudioDestinationHandler::StartRendering() { |
88 DCHECK(IsInitialized()); | 88 DCHECK(IsInitialized()); |
89 if (IsInitialized()) { | 89 if (IsInitialized()) { |
90 DCHECK(!destination_->IsPlaying()); | 90 DCHECK(!destination_->IsPlaying()); |
91 destination_->Start(); | 91 destination_->Start(Context()->GetRenderingThread()); |
92 } | 92 } |
93 } | 93 } |
94 | 94 |
95 void DefaultAudioDestinationHandler::StopRendering() { | 95 void DefaultAudioDestinationHandler::StopRendering() { |
96 DCHECK(IsInitialized()); | 96 DCHECK(IsInitialized()); |
97 if (IsInitialized()) { | 97 if (IsInitialized()) { |
98 DCHECK(destination_->IsPlaying()); | 98 DCHECK(destination_->IsPlaying()); |
99 destination_->Stop(); | 99 destination_->Stop(); |
100 } | 100 } |
101 } | 101 } |
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128 } | 128 } |
129 | 129 |
130 unsigned long old_channel_count = this->ChannelCount(); | 130 unsigned long old_channel_count = this->ChannelCount(); |
131 AudioHandler::SetChannelCount(channel_count, exception_state); | 131 AudioHandler::SetChannelCount(channel_count, exception_state); |
132 | 132 |
133 if (!exception_state.HadException() && | 133 if (!exception_state.HadException() && |
134 this->ChannelCount() != old_channel_count && IsInitialized()) { | 134 this->ChannelCount() != old_channel_count && IsInitialized()) { |
135 // Re-create destination. | 135 // Re-create destination. |
136 destination_->Stop(); | 136 destination_->Stop(); |
137 CreateDestination(); | 137 CreateDestination(); |
138 destination_->Start(); | 138 destination_->Start(Context()->GetRenderingThread()); |
139 } | 139 } |
140 } | 140 } |
141 | 141 |
142 double DefaultAudioDestinationHandler::SampleRate() const { | 142 double DefaultAudioDestinationHandler::SampleRate() const { |
143 return destination_ ? destination_->SampleRate() : 0; | 143 return destination_ ? destination_->SampleRate() : 0; |
144 } | 144 } |
145 | 145 |
146 int DefaultAudioDestinationHandler::FramesPerBuffer() const { | 146 int DefaultAudioDestinationHandler::FramesPerBuffer() const { |
147 return destination_ ? destination_->FramesPerBuffer() : 0; | 147 return destination_ ? destination_->FramesPerBuffer() : 0; |
148 } | 148 } |
149 | 149 |
150 // ---------------------------------------------------------------- | 150 // ---------------------------------------------------------------- |
151 | 151 |
152 DefaultAudioDestinationNode::DefaultAudioDestinationNode( | 152 DefaultAudioDestinationNode::DefaultAudioDestinationNode( |
153 BaseAudioContext& context, | 153 BaseAudioContext& context, |
154 const WebAudioLatencyHint& latency_hint) | 154 const WebAudioLatencyHint& latency_hint) |
155 : AudioDestinationNode(context) { | 155 : AudioDestinationNode(context) { |
156 SetHandler(DefaultAudioDestinationHandler::Create(*this, latency_hint)); | 156 SetHandler(DefaultAudioDestinationHandler::Create(*this, latency_hint)); |
157 } | 157 } |
158 | 158 |
159 DefaultAudioDestinationNode* DefaultAudioDestinationNode::Create( | 159 DefaultAudioDestinationNode* DefaultAudioDestinationNode::Create( |
160 BaseAudioContext* context, | 160 BaseAudioContext* context, |
161 const WebAudioLatencyHint& latency_hint) { | 161 const WebAudioLatencyHint& latency_hint) { |
162 return new DefaultAudioDestinationNode(*context, latency_hint); | 162 return new DefaultAudioDestinationNode(*context, latency_hint); |
163 } | 163 } |
164 | 164 |
165 } // namespace blink | 165 } // namespace blink |
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