Implement BaseAudioContext

third_party/WebKit/Source/modules/webaudio/MediaElementAudioSourceNode.cpp

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
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  * modification, are permitted provided that the following conditions
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  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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 #include "modules/webaudio/MediaElementAudioSourceNode.h"
 #include "core/dom/CrossThreadTask.h"
 #include "core/frame/ConsoleTypes.h"
 #include "core/html/HTMLMediaElement.h"
 #include "core/inspector/ConsoleMessage.h"
-#include "modules/webaudio/AbstractAudioContext.h"
 #include "modules/webaudio/AudioNodeOutput.h"
+#include "modules/webaudio/BaseAudioContext.h"
 #include "platform/Logging.h"
 #include "platform/audio/AudioUtilities.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/Locker.h"
 
 namespace blink {
 
 MediaElementAudioSourceHandler::MediaElementAudioSourceHandler(AudioNode& node, HTMLMediaElement& mediaElement)
     : AudioHandler(NodeTypeMediaElementAudioSource, node, node.context()->sampleRate())
     , m_mediaElement(mediaElement)
@@ skipping 23 matching lines @@
 
 void MediaElementAudioSourceHandler::dispose()
 {
     m_mediaElement->setAudioSourceNode(nullptr);
     AudioHandler::dispose();
 }
 
 void MediaElementAudioSourceHandler::setFormat(size_t numberOfChannels, float sourceSampleRate)
 {
     if (numberOfChannels != m_sourceNumberOfChannels || sourceSampleRate != m_sourceSampleRate) {
-        if (!numberOfChannels || numberOfChannels > AbstractAudioContext::maxNumberOfChannels() || !AudioUtilities::isValidAudioBufferSampleRate(sourceSampleRate)) {
+        if (!numberOfChannels || numberOfChannels > BaseAudioContext::maxNumberOfChannels() || !AudioUtilities::isValidAudioBufferSampleRate(sourceSampleRate)) {
             // process() will generate silence for these uninitialized values.
             WTF_LOG(Media, "MediaElementAudioSourceNode::setFormat(%u, %f) - unhandled format change", static_cast<unsigned>(numberOfChannels), sourceSampleRate);
             // Synchronize with process().
             Locker<MediaElementAudioSourceHandler> locker(*this);
             m_sourceNumberOfChannels = 0;
             m_sourceSampleRate = 0;
             return;
         }
 
         // Synchronize with process() to protect m_sourceNumberOfChannels,
         // m_sourceSampleRate, and m_multiChannelResampler.
         Locker<MediaElementAudioSourceHandler> locker(*this);
 
         m_sourceNumberOfChannels = numberOfChannels;
         m_sourceSampleRate = sourceSampleRate;
 
         if (sourceSampleRate != sampleRate()) {
             double scaleFactor = sourceSampleRate / sampleRate();
             m_multiChannelResampler = adoptPtr(new MultiChannelResampler(scaleFactor, numberOfChannels));
         } else {
             // Bypass resampling.
             m_multiChannelResampler.clear();
         }
 
         {
             // The context must be locked when changing the number of output channels.
-            AbstractAudioContext::AutoLocker contextLocker(context());
+            BaseAudioContext::AutoLocker contextLocker(context());
 
             // Do any necesssary re-configuration to the output's number of channels.
             output(0).setNumberOfChannels(numberOfChannels);
         }
     }
 }
 
 bool MediaElementAudioSourceHandler::passesCORSAccessCheck()
 {
     ASSERT(mediaElement());
@@ skipping 83 matching lines @@
     m_processLock.lock();
 }
 
 void MediaElementAudioSourceHandler::unlock()
 {
     m_processLock.unlock();
 }
 
 // ----------------------------------------------------------------
 
-MediaElementAudioSourceNode::MediaElementAudioSourceNode(AbstractAudioContext& context, HTMLMediaElement& mediaElement)
+MediaElementAudioSourceNode::MediaElementAudioSourceNode(BaseAudioContext& context, HTMLMediaElement& mediaElement)
     : AudioSourceNode(context)
 {
     setHandler(MediaElementAudioSourceHandler::create(*this, mediaElement));
 }
 
-MediaElementAudioSourceNode* MediaElementAudioSourceNode::create(AbstractAudioContext& context, HTMLMediaElement& mediaElement)
+MediaElementAudioSourceNode* MediaElementAudioSourceNode::create(BaseAudioContext& context, HTMLMediaElement& mediaElement)
 {
     return new MediaElementAudioSourceNode(context, mediaElement);
 }
 
 DEFINE_TRACE(MediaElementAudioSourceNode)
 {
     AudioSourceProviderClient::trace(visitor);
     AudioSourceNode::trace(visitor);
 }
 
@@ skipping 22 matching lines @@
     mediaElementAudioSourceHandler().lock();
 }
 
 void MediaElementAudioSourceNode::unlock()
 {
     mediaElementAudioSourceHandler().unlock();
 }
 
 } // namespace blink