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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef AudioDestinationNode_h_
#define AudioDestinationNode_h_
#include "mozilla/dom/AudioChannelBinding.h"
#include "AudioNode.h"
#include "nsIAudioChannelAgent.h"
namespace mozilla {
namespace dom {
class AudioContext;
class AudioDestinationNode final : public AudioNode
, public nsIAudioChannelAgentCallback
, public MainThreadMediaStreamListener
{
public:
// This node type knows what MediaStreamGraph to use based on
// whether it's in offline mode.
AudioDestinationNode(AudioContext* aContext,
bool aIsOffline,
AudioChannel aChannel = AudioChannel::Normal,
uint32_t aNumberOfChannels = 0,
uint32_t aLength = 0,
float aSampleRate = 0.0f);
void DestroyMediaStream() override;
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioDestinationNode, AudioNode)
NS_DECL_NSIAUDIOCHANNELAGENTCALLBACK
JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
uint16_t NumberOfOutputs() const final override
{
return 0;
}
uint32_t MaxChannelCount() const;
void SetChannelCount(uint32_t aChannelCount,
ErrorResult& aRv) override;
// Returns the stream or null after unlink.
AudioNodeStream* Stream() { return mStream; }
void Mute();
void Unmute();
void Suspend();
void Resume();
void StartRendering(Promise* aPromise);
void OfflineShutdown();
AudioChannel MozAudioChannelType() const;
void NotifyMainThreadStreamFinished() override;
void FireOfflineCompletionEvent();
nsresult CreateAudioChannelAgent();
void DestroyAudioChannelAgent();
const char* NodeType() const override
{
return "AudioDestinationNode";
}
size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
void InputMuted(bool aInputMuted);
void ResolvePromise(AudioBuffer* aRenderedBuffer);
unsigned long Length()
{
MOZ_ASSERT(mIsOffline);
return mFramesToProduce;
}
protected:
virtual ~AudioDestinationNode();
private:
void SetMozAudioChannelType(AudioChannel aValue, ErrorResult& aRv);
bool CheckAudioChannelPermissions(AudioChannel aValue);
SelfReference<AudioDestinationNode> mOfflineRenderingRef;
uint32_t mFramesToProduce;
nsCOMPtr<nsIAudioChannelAgent> mAudioChannelAgent;
RefPtr<MediaInputPort> mCaptureStreamPort;
RefPtr<Promise> mOfflineRenderingPromise;
// Audio Channel Type.
AudioChannel mAudioChannel;
bool mIsOffline;
bool mAudioChannelSuspended;
bool mCaptured;
};
} // namespace dom
} // namespace mozilla
#endif
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