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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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| 34 #include "platform/Logging.h" | 34 #include "platform/Logging.h" |
| 35 #include "platform/graphics/media/MediaPlayer.h" | 35 #include "platform/graphics/media/MediaPlayer.h" |
| 36 #include "wtf/Locker.h" | 36 #include "wtf/Locker.h" |
| 37 | 37 |
| 38 // These are somewhat arbitrary limits, but we need to do some kind of sanity-ch
ecking. | 38 // These are somewhat arbitrary limits, but we need to do some kind of sanity-ch
ecking. |
| 39 const unsigned minSampleRate = 8000; | 39 const unsigned minSampleRate = 8000; |
| 40 const unsigned maxSampleRate = 192000; | 40 const unsigned maxSampleRate = 192000; |
| 41 | 41 |
| 42 namespace WebCore { | 42 namespace WebCore { |
| 43 | 43 |
| 44 PassRefPtr<MediaElementAudioSourceNode> MediaElementAudioSourceNode::create(Audi
oContext* context, HTMLMediaElement* mediaElement) | 44 PassRefPtrWillBeRawPtr<MediaElementAudioSourceNode> MediaElementAudioSourceNode:
:create(AudioContext* context, HTMLMediaElement* mediaElement) |
| 45 { | 45 { |
| 46 return adoptRef(new MediaElementAudioSourceNode(context, mediaElement)); | 46 return adoptRefWillBeNoop(new MediaElementAudioSourceNode(context, mediaElem
ent)); |
| 47 } | 47 } |
| 48 | 48 |
| 49 MediaElementAudioSourceNode::MediaElementAudioSourceNode(AudioContext* context,
HTMLMediaElement* mediaElement) | 49 MediaElementAudioSourceNode::MediaElementAudioSourceNode(AudioContext* context,
HTMLMediaElement* mediaElement) |
| 50 : AudioSourceNode(context, context->sampleRate()) | 50 : AudioSourceNode(context, context->sampleRate()) |
| 51 , m_mediaElement(mediaElement) | 51 , m_mediaElement(mediaElement) |
| 52 , m_sourceNumberOfChannels(0) | 52 , m_sourceNumberOfChannels(0) |
| 53 , m_sourceSampleRate(0) | 53 , m_sourceSampleRate(0) |
| 54 { | 54 { |
| 55 ScriptWrappable::init(this); | 55 ScriptWrappable::init(this); |
| 56 // Default to stereo. This could change depending on what the media element
.src is set to. | 56 // Default to stereo. This could change depending on what the media element
.src is set to. |
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| 144 | 144 |
| 145 void MediaElementAudioSourceNode::unlock() | 145 void MediaElementAudioSourceNode::unlock() |
| 146 { | 146 { |
| 147 m_processLock.unlock(); | 147 m_processLock.unlock(); |
| 148 deref(); | 148 deref(); |
| 149 } | 149 } |
| 150 | 150 |
| 151 } // namespace WebCore | 151 } // namespace WebCore |
| 152 | 152 |
| 153 #endif // ENABLE(WEB_AUDIO) | 153 #endif // ENABLE(WEB_AUDIO) |
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