LCOV - code coverage report
Current view: top level - dom/media/webaudio - AudioProcessingEvent.h (source / functions) Hit Total Coverage
Test: output.info Lines: 0 20 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 38 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim:set ts=2 sw=2 sts=2 et cindent: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef AudioProcessingEvent_h_
       8             : #define AudioProcessingEvent_h_
       9             : 
      10             : #include "AudioBuffer.h"
      11             : #include "ScriptProcessorNode.h"
      12             : #include "mozilla/dom/Event.h"
      13             : 
      14             : namespace mozilla {
      15             : namespace dom {
      16             : 
      17             : class AudioProcessingEvent final : public Event
      18             : {
      19             : public:
      20             :   AudioProcessingEvent(ScriptProcessorNode* aOwner,
      21             :                        nsPresContext* aPresContext,
      22             :                        WidgetEvent* aEvent);
      23             : 
      24             :   NS_DECL_ISUPPORTS_INHERITED
      25           0 :   NS_FORWARD_TO_EVENT
      26           0 :   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioProcessingEvent, Event)
      27             : 
      28             :   JSObject* WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
      29             : 
      30           0 :   void InitEvent(AudioBuffer* aInputBuffer,
      31             :                  uint32_t aNumberOfInputChannels,
      32             :                  double aPlaybackTime)
      33             :   {
      34           0 :     InitEvent(NS_LITERAL_STRING("audioprocess"), false, false);
      35           0 :     mInputBuffer = aInputBuffer;
      36           0 :     mNumberOfInputChannels = aNumberOfInputChannels;
      37           0 :     mPlaybackTime = aPlaybackTime;
      38           0 :   }
      39             : 
      40           0 :   double PlaybackTime() const
      41             :   {
      42           0 :     return mPlaybackTime;
      43             :   }
      44             : 
      45           0 :   AudioBuffer* GetInputBuffer(ErrorResult& aRv)
      46             :   {
      47           0 :     if (!mInputBuffer) {
      48           0 :       mInputBuffer = LazilyCreateBuffer(mNumberOfInputChannels, aRv);
      49             :     }
      50           0 :     return mInputBuffer;
      51             :   }
      52             : 
      53           0 :   AudioBuffer* GetOutputBuffer(ErrorResult& aRv)
      54             :   {
      55           0 :     if (!mOutputBuffer) {
      56           0 :       mOutputBuffer = LazilyCreateBuffer(mNode->NumberOfOutputChannels(), aRv);
      57             :     }
      58           0 :     return mOutputBuffer;
      59             :   }
      60             : 
      61           0 :   bool HasOutputBuffer() const
      62             :   {
      63           0 :     return !!mOutputBuffer;
      64             :   }
      65             : 
      66             : protected:
      67             :   virtual ~AudioProcessingEvent();
      68             : 
      69             : private:
      70             :   already_AddRefed<AudioBuffer>
      71             :   LazilyCreateBuffer(uint32_t aNumberOfChannels, ErrorResult& rv);
      72             : 
      73             : private:
      74             :   double mPlaybackTime;
      75             :   RefPtr<AudioBuffer> mInputBuffer;
      76             :   RefPtr<AudioBuffer> mOutputBuffer;
      77             :   RefPtr<ScriptProcessorNode> mNode;
      78             :   uint32_t mNumberOfInputChannels;
      79             : };
      80             : 
      81             : } // namespace dom
      82             : } // namespace mozilla
      83             : 
      84             : #endif
      85             : 

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