mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
6d8b72a707
This is a mega-patch that was too hard to disentangle. Here's what it does: -- Create infrastructure around AudioNode::UpdateOutputEnded to detect when a node can no longer produce any output. When that becomes true, disconnect it from the AudioNode graph. -- Have AudioNode implement JSBindingFinalized to use as input in UpdateOutputEnded. -- Give every AudioNode a MediaStream, and give every connection a MediaInputPort. -- Actually play the audio that reaches the AudioContext's destination node. -- Force AudioContext to use the audio sample rate defined by MediaStreamGraph. -- Fix AudioBufferSourceNode's start and stop methods to possibly throw and take default 'when' parameters. -- Create an AudioNodeStream for AudioBufferSourceNode and give it a AudioBufferSourceNodeEngine that does what's needed. Set parameters for this engine in the start() and stop() methods. -- Create AudioBuffer::GetThreadSharedChannelsForRate, which is responsible for stealing the contents of any JS array buffers, and bundling them up into a thread-shared read-only buffer object which can be used as part of an AudioChunk. This method will also be responsible for resampling and caching as necessary. --HG-- rename : content/media/MediaStreamGraph.cpp => content/media/MediaStreamGraphImpl.h extra : rebase_source : 9fa0ec0efa304acd6513e427103d6339c78efa53
133 lines
3.2 KiB
C++
133 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef AudioContext_h_
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#define AudioContext_h_
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#include "nsWrapperCache.h"
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#include "nsCycleCollectionParticipant.h"
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#include "mozilla/Attributes.h"
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#include "nsCOMPtr.h"
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#include "EnableWebAudioCheck.h"
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#include "nsAutoPtr.h"
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#include "mozilla/dom/TypedArray.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "mozilla/dom/AudioContextBinding.h"
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#include "MediaBufferDecoder.h"
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#include "StreamBuffer.h"
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#include "MediaStreamGraph.h"
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#include "nsIDOMWindow.h"
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struct JSContext;
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class JSObject;
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class nsIDOMWindow;
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namespace mozilla {
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class ErrorResult;
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struct WebAudioDecodeJob;
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namespace dom {
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class AudioBuffer;
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class AudioBufferSourceNode;
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class AudioDestinationNode;
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class AudioListener;
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class BiquadFilterNode;
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class DelayNode;
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class DynamicsCompressorNode;
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class GainNode;
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class GlobalObject;
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class PannerNode;
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class AudioContext MOZ_FINAL : public nsWrapperCache,
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public EnableWebAudioCheck
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{
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explicit AudioContext(nsIDOMWindow* aParentWindow);
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~AudioContext();
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public:
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NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(AudioContext)
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(AudioContext)
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nsIDOMWindow* GetParentObject() const
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{
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return mWindow;
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}
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void Shutdown()
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{
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mDecoder.Shutdown();
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}
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virtual JSObject* WrapObject(JSContext* aCx, JSObject* aScope,
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bool* aTriedToWrap);
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static already_AddRefed<AudioContext>
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Constructor(const GlobalObject& aGlobal, ErrorResult& aRv);
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AudioDestinationNode* Destination() const
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{
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return mDestination;
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}
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float SampleRate() const
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{
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return float(IdealAudioRate());
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}
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AudioListener* Listener();
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already_AddRefed<AudioBufferSourceNode> CreateBufferSource();
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already_AddRefed<AudioBuffer>
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CreateBuffer(JSContext* aJSContext, uint32_t aNumberOfChannels,
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uint32_t aLength, float aSampleRate,
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ErrorResult& aRv);
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already_AddRefed<GainNode>
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CreateGain();
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already_AddRefed<DelayNode>
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CreateDelay(double aMaxDelayTime, ErrorResult& aRv);
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already_AddRefed<PannerNode>
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CreatePanner();
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already_AddRefed<DynamicsCompressorNode>
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CreateDynamicsCompressor();
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already_AddRefed<BiquadFilterNode>
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CreateBiquadFilter();
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void DecodeAudioData(const ArrayBuffer& aBuffer,
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DecodeSuccessCallback& aSuccessCallback,
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const Optional<OwningNonNull<DecodeErrorCallback> >& aFailureCallback);
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uint32_t GetRate() const { return IdealAudioRate(); }
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MediaStreamGraph* Graph() const;
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MediaStream* DestinationStream() const;
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private:
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void RemoveFromDecodeQueue(WebAudioDecodeJob* aDecodeJob);
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friend struct ::mozilla::WebAudioDecodeJob;
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private:
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nsCOMPtr<nsIDOMWindow> mWindow;
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nsRefPtr<AudioDestinationNode> mDestination;
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nsRefPtr<AudioListener> mListener;
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MediaBufferDecoder mDecoder;
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nsTArray<nsAutoPtr<WebAudioDecodeJob> > mDecodeJobs;
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};
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}
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}
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#endif
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