mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
5d60f92b6f
Modifies MediaStreamGraph to always advance its time by a multiple of WEBAUDIO_BLOCK_SIZE. --HG-- extra : rebase_source : 99524b09edd4ac0e1bc6607f2ba14925bc2f11c2
83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
|
|
/* 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 MOZILLA_AUDIONODESTREAM_H_
|
|
#define MOZILLA_AUDIONODESTREAM_H_
|
|
|
|
#include "MediaStreamGraph.h"
|
|
#include "AudioChannelFormat.h"
|
|
#include "AudioNodeEngine.h"
|
|
|
|
#ifdef PR_LOGGING
|
|
#define LOG(type, msg) PR_LOG(gMediaStreamGraphLog, type, msg)
|
|
#else
|
|
#define LOG(type, msg)
|
|
#endif
|
|
|
|
namespace mozilla {
|
|
|
|
class ThreadSharedFloatArrayBufferList;
|
|
|
|
/**
|
|
* An AudioNodeStream produces one audio track with ID AUDIO_TRACK.
|
|
* The start time of the AudioTrack is aligned to the start time of the
|
|
* AudioContext's destination node stream, plus some multiple of BLOCK_SIZE
|
|
* samples.
|
|
*
|
|
* An AudioNodeStream has an AudioNodeEngine plugged into it that does the
|
|
* actual audio processing. AudioNodeStream contains the glue code that
|
|
* integrates audio processing with the MediaStreamGraph.
|
|
*/
|
|
class AudioNodeStream : public ProcessedMediaStream {
|
|
public:
|
|
enum { AUDIO_TRACK = 1 };
|
|
|
|
/**
|
|
* Transfers ownership of aEngine to the new AudioNodeStream.
|
|
*/
|
|
explicit AudioNodeStream(AudioNodeEngine* aEngine)
|
|
: ProcessedMediaStream(nullptr), mEngine(aEngine), mLastChunk(nullptr)
|
|
{
|
|
}
|
|
~AudioNodeStream();
|
|
|
|
// Control API
|
|
/**
|
|
* Sets a parameter that's a time relative to some stream's played time.
|
|
* This time is converted to a time relative to this stream when it's set.
|
|
*/
|
|
void SetStreamTimeParameter(uint32_t aIndex, MediaStream* aRelativeToStream,
|
|
double aStreamTime);
|
|
void SetDoubleParameter(uint32_t aIndex, double aValue);
|
|
void SetInt32Parameter(uint32_t aIndex, int32_t aValue);
|
|
void SetBuffer(already_AddRefed<ThreadSharedFloatArrayBufferList> aBuffer);
|
|
|
|
virtual AudioNodeStream* AsAudioNodeStream() { return this; }
|
|
|
|
// Graph thread only
|
|
void SetStreamTimeParameterImpl(uint32_t aIndex, MediaStream* aRelativeToStream,
|
|
double aStreamTime);
|
|
virtual void ProduceOutput(GraphTime aFrom, GraphTime aTo);
|
|
TrackTicks GetCurrentPosition();
|
|
|
|
// Any thread
|
|
AudioNodeEngine* Engine() { return mEngine; }
|
|
|
|
protected:
|
|
void FinishOutput();
|
|
|
|
StreamBuffer::Track* EnsureTrack();
|
|
AudioChunk* ObtainInputBlock(AudioChunk* aTmpChunk);
|
|
|
|
// The engine that will generate output for this node.
|
|
nsAutoPtr<AudioNodeEngine> mEngine;
|
|
// The last block produced by this node.
|
|
AudioChunk* mLastChunk;
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* MOZILLA_AUDIONODESTREAM_H_ */
|