mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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3490a03af3
Also removes NotifyHasCurrentData's boolean parameter; we just fire this once and treat a stream that has once had current data as always having current data (since we block a stream that would advance beyond its available data).
97 lines
3.0 KiB
C++
97 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_AUDIONODESTREAM_H_
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#define MOZILLA_AUDIONODESTREAM_H_
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#include "MediaStreamGraph.h"
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#include "AudioChannelFormat.h"
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#include "AudioNodeEngine.h"
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#include "mozilla/dom/AudioParam.h"
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#ifdef PR_LOGGING
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#define LOG(type, msg) PR_LOG(gMediaStreamGraphLog, type, msg)
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#else
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#define LOG(type, msg)
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#endif
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namespace mozilla {
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namespace dom {
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struct ThreeDPoint;
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}
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class ThreadSharedFloatArrayBufferList;
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/**
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* An AudioNodeStream produces one audio track with ID AUDIO_TRACK.
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* The start time of the AudioTrack is aligned to the start time of the
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* AudioContext's destination node stream, plus some multiple of BLOCK_SIZE
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* samples.
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*
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* An AudioNodeStream has an AudioNodeEngine plugged into it that does the
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* actual audio processing. AudioNodeStream contains the glue code that
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* integrates audio processing with the MediaStreamGraph.
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*/
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class AudioNodeStream : public ProcessedMediaStream {
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public:
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enum { AUDIO_TRACK = 1 };
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/**
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* Transfers ownership of aEngine to the new AudioNodeStream.
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*/
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AudioNodeStream(AudioNodeEngine* aEngine,
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MediaStreamGraph::AudioNodeStreamKind aKind)
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: ProcessedMediaStream(nullptr),
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mEngine(aEngine),
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mKind(aKind)
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{
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// AudioNodes are always producing data
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mHasCurrentData = true;
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}
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~AudioNodeStream();
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// Control API
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/**
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* Sets a parameter that's a time relative to some stream's played time.
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* This time is converted to a time relative to this stream when it's set.
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*/
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void SetStreamTimeParameter(uint32_t aIndex, MediaStream* aRelativeToStream,
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double aStreamTime);
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void SetDoubleParameter(uint32_t aIndex, double aValue);
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void SetInt32Parameter(uint32_t aIndex, int32_t aValue);
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void SetTimelineParameter(uint32_t aIndex, const dom::AudioParamTimeline& aValue);
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void SetThreeDPointParameter(uint32_t aIndex, const dom::ThreeDPoint& aValue);
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void SetBuffer(already_AddRefed<ThreadSharedFloatArrayBufferList> aBuffer);
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virtual AudioNodeStream* AsAudioNodeStream() { return this; }
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// Graph thread only
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void SetStreamTimeParameterImpl(uint32_t aIndex, MediaStream* aRelativeToStream,
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double aStreamTime);
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virtual void ProduceOutput(GraphTime aFrom, GraphTime aTo);
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TrackTicks GetCurrentPosition();
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// Any thread
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AudioNodeEngine* Engine() { return mEngine; }
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protected:
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void FinishOutput();
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StreamBuffer::Track* EnsureTrack();
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AudioChunk* ObtainInputBlock(AudioChunk* aTmpChunk);
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// The engine that will generate output for this node.
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nsAutoPtr<AudioNodeEngine> mEngine;
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// The last block produced by this node.
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AudioChunk mLastChunk;
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// Whether this is an internal or external stream
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MediaStreamGraph::AudioNodeStreamKind mKind;
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};
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}
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#endif /* MOZILLA_AUDIONODESTREAM_H_ */
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