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Side by Side Diff: third_party/WebKit/Source/modules/webaudio/MediaStreamAudioDestinationNode.cpp

Issue 1865583002: Implement BaseAudioContext (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) 2012, Google Inc. All rights reserved. 2 * Copyright (C) 2012, 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
11 * documentation and/or other materials provided with the distribution. 11 * documentation and/or other materials provided with the distribution.
12 * 12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN Y 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN Y
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN Y 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN Y
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O N 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O N
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */ 23 */
24 24
25 #include "modules/webaudio/MediaStreamAudioDestinationNode.h" 25 #include "modules/webaudio/MediaStreamAudioDestinationNode.h"
26 #include "bindings/core/v8/ExceptionMessages.h" 26 #include "bindings/core/v8/ExceptionMessages.h"
27 #include "bindings/core/v8/ExceptionState.h" 27 #include "bindings/core/v8/ExceptionState.h"
28 #include "core/dom/ExceptionCode.h" 28 #include "core/dom/ExceptionCode.h"
29 #include "modules/webaudio/AbstractAudioContext.h"
30 #include "modules/webaudio/AudioNodeInput.h" 29 #include "modules/webaudio/AudioNodeInput.h"
30 #include "modules/webaudio/BaseAudioContext.h"
31 #include "platform/UUID.h" 31 #include "platform/UUID.h"
32 #include "platform/mediastream/MediaStreamCenter.h" 32 #include "platform/mediastream/MediaStreamCenter.h"
33 #include "public/platform/WebRTCPeerConnectionHandler.h" 33 #include "public/platform/WebRTCPeerConnectionHandler.h"
34 #include "wtf/Locker.h" 34 #include "wtf/Locker.h"
35 35
36 namespace blink { 36 namespace blink {
37 37
38 // WebAudioCapturerSource ignores the channel count beyond 8, so we set the 38 // WebAudioCapturerSource ignores the channel count beyond 8, so we set the
39 // block here to avoid anything can cause the crash. 39 // block here to avoid anything can cause the crash.
40 static const unsigned long kMaxChannelCount = 8; 40 static const unsigned long kMaxChannelCount = 8;
(...skipping 55 matching lines...) Expand 10 before | Expand all | Expand 10 after
96 96
97 unsigned long oldChannelCount = this->channelCount(); 97 unsigned long oldChannelCount = this->channelCount();
98 AudioHandler::setChannelCount(channelCount, exceptionState); 98 AudioHandler::setChannelCount(channelCount, exceptionState);
99 99
100 // Update the pipeline with the new channel count only if absolutely 100 // Update the pipeline with the new channel count only if absolutely
101 // necessary. This process requires the graph lock. 101 // necessary. This process requires the graph lock.
102 // 102 //
103 // TODO(hongchan): There might be a data race here since both threads 103 // TODO(hongchan): There might be a data race here since both threads
104 // have access to m_mixBus. 104 // have access to m_mixBus.
105 if (!exceptionState.hadException() && this->channelCount() != oldChannelCoun t && isInitialized()) { 105 if (!exceptionState.hadException() && this->channelCount() != oldChannelCoun t && isInitialized()) {
106 AbstractAudioContext::AutoLocker locker(context()); 106 BaseAudioContext::AutoLocker locker(context());
107 m_mixBus = AudioBus::create(channelCount, ProcessingSizeInFrames); 107 m_mixBus = AudioBus::create(channelCount, ProcessingSizeInFrames);
108 m_source->setAudioFormat(channelCount, context()->sampleRate()); 108 m_source->setAudioFormat(channelCount, context()->sampleRate());
109 } 109 }
110 } 110 }
111 111
112 unsigned long MediaStreamAudioDestinationHandler::maxChannelCount() const 112 unsigned long MediaStreamAudioDestinationHandler::maxChannelCount() const
113 { 113 {
114 return kMaxChannelCount; 114 return kMaxChannelCount;
115 } 115 }
116 116
117 // ---------------------------------------------------------------- 117 // ----------------------------------------------------------------
118 118
119 MediaStreamAudioDestinationNode::MediaStreamAudioDestinationNode(AbstractAudioCo ntext& context, size_t numberOfChannels) 119 MediaStreamAudioDestinationNode::MediaStreamAudioDestinationNode(BaseAudioContex t& context, size_t numberOfChannels)
120 : AudioBasicInspectorNode(context) 120 : AudioBasicInspectorNode(context)
121 { 121 {
122 setHandler(MediaStreamAudioDestinationHandler::create(*this, numberOfChannel s)); 122 setHandler(MediaStreamAudioDestinationHandler::create(*this, numberOfChannel s));
123 } 123 }
124 124
125 MediaStreamAudioDestinationNode* MediaStreamAudioDestinationNode::create(Abstrac tAudioContext& context, size_t numberOfChannels) 125 MediaStreamAudioDestinationNode* MediaStreamAudioDestinationNode::create(BaseAud ioContext& context, size_t numberOfChannels)
126 { 126 {
127 return new MediaStreamAudioDestinationNode(context, numberOfChannels); 127 return new MediaStreamAudioDestinationNode(context, numberOfChannels);
128 } 128 }
129 129
130 MediaStream* MediaStreamAudioDestinationNode::stream() const 130 MediaStream* MediaStreamAudioDestinationNode::stream() const
131 { 131 {
132 return static_cast<MediaStreamAudioDestinationHandler&>(handler()).stream(); 132 return static_cast<MediaStreamAudioDestinationHandler&>(handler()).stream();
133 } 133 }
134 134
135 } // namespace blink 135 } // namespace blink
136 136
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