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content/media/webrtc/MediaEngineDefault.h@44a2da4a2ab2 (annotated)

content/media/webrtc/MediaEngineDefault.h

Fri, 16 Jan 2015 04:50:19 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Fri, 16 Jan 2015 04:50:19 +0100

branch

TOR_BUG_9701

changeset 13

44a2da4a2ab2

permissions

-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0	1	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	2	* License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0	3	* You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	4
michael@0	5	#ifndef MEDIAENGINEDEFAULT_H_
michael@0	6	#define MEDIAENGINEDEFAULT_H_
michael@0	7
michael@0	8	#include "nsITimer.h"
michael@0	9
michael@0	10	#include "nsCOMPtr.h"
michael@0	11	#include "DOMMediaStream.h"
michael@0	12	#include "nsComponentManagerUtils.h"
michael@0	13	#include "mozilla/Monitor.h"
michael@0	14
michael@0	15	#include "VideoUtils.h"
michael@0	16	#include "MediaEngine.h"
michael@0	17	#include "VideoSegment.h"
michael@0	18	#include "AudioSegment.h"
michael@0	19	#include "StreamBuffer.h"
michael@0	20	#include "MediaStreamGraph.h"
michael@0	21
michael@0	22	namespace mozilla {
michael@0	23
michael@0	24	namespace layers {
michael@0	25	class ImageContainer;
michael@0	26	class PlanarYCbCrImage;
michael@0	27	}
michael@0	28
michael@0	29	class MediaEngineDefault;
michael@0	30
michael@0	31	/**
michael@0	32	* The default implementation of the MediaEngine interface.
michael@0	33	*/
michael@0	34	class MediaEngineDefaultVideoSource : public nsITimerCallback,
michael@0	35	public MediaEngineVideoSource
michael@0	36	{
michael@0	37	public:
michael@0	38	MediaEngineDefaultVideoSource();
michael@0	39	~MediaEngineDefaultVideoSource();
michael@0	40
michael@0	41	virtual void GetName(nsAString&);
michael@0	42	virtual void GetUUID(nsAString&);
michael@0	43
michael@0	44	virtual nsresult Allocate(const VideoTrackConstraintsN &aConstraints,
michael@0	45	const MediaEnginePrefs &aPrefs);
michael@0	46	virtual nsresult Deallocate();
michael@0	47	virtual nsresult Start(SourceMediaStream*, TrackID);
michael@0	48	virtual nsresult Stop(SourceMediaStream*, TrackID);
michael@0	49	virtual nsresult Snapshot(uint32_t aDuration, nsIDOMFile** aFile);
michael@0	50	virtual nsresult Config(bool aEchoOn, uint32_t aEcho,
michael@0	51	bool aAgcOn, uint32_t aAGC,
michael@0	52	bool aNoiseOn, uint32_t aNoise,
michael@0	53	int32_t aPlayoutDelay) { return NS_OK; };
michael@0	54	virtual void NotifyPull(MediaStreamGraph* aGraph,
michael@0	55	SourceMediaStream *aSource,
michael@0	56	TrackID aId,
michael@0	57	StreamTime aDesiredTime,
michael@0	58	TrackTicks &aLastEndTime);
michael@0	59
michael@0	60	virtual bool IsFake() {
michael@0	61	return true;
michael@0	62	}
michael@0	63
michael@0	64	NS_DECL_THREADSAFE_ISUPPORTS
michael@0	65	NS_DECL_NSITIMERCALLBACK
michael@0	66
michael@0	67	protected:
michael@0	68	friend class MediaEngineDefault;
michael@0	69
michael@0	70	TrackID mTrackID;
michael@0	71	nsCOMPtr<nsITimer> mTimer;
michael@0	72	// mMonitor protects mImage access/changes, and transitions of mState
michael@0	73	// from kStarted to kStopped (which are combined with EndTrack() and
michael@0	74	// image changes). Note that mSources is not accessed from other threads
michael@0	75	// for video and is not protected.
michael@0	76	Monitor mMonitor;
michael@0	77	nsRefPtr<layers::Image> mImage;
michael@0	78
michael@0	79	nsRefPtr<layers::ImageContainer> mImageContainer;
michael@0	80
michael@0	81	MediaEnginePrefs mOpts;
michael@0	82	int mCb;
michael@0	83	int mCr;
michael@0	84	};
michael@0	85
michael@0	86	class SineWaveGenerator;
michael@0	87
michael@0	88	class MediaEngineDefaultAudioSource : public nsITimerCallback,
michael@0	89	public MediaEngineAudioSource
michael@0	90	{
michael@0	91	public:
michael@0	92	MediaEngineDefaultAudioSource();
michael@0	93	~MediaEngineDefaultAudioSource();
michael@0	94
michael@0	95	virtual void GetName(nsAString&);
michael@0	96	virtual void GetUUID(nsAString&);
michael@0	97
michael@0	98	virtual nsresult Allocate(const AudioTrackConstraintsN &aConstraints,
michael@0	99	const MediaEnginePrefs &aPrefs);
michael@0	100	virtual nsresult Deallocate();
michael@0	101	virtual nsresult Start(SourceMediaStream*, TrackID);
michael@0	102	virtual nsresult Stop(SourceMediaStream*, TrackID);
michael@0	103	virtual nsresult Snapshot(uint32_t aDuration, nsIDOMFile** aFile);
michael@0	104	virtual nsresult Config(bool aEchoOn, uint32_t aEcho,
michael@0	105	bool aAgcOn, uint32_t aAGC,
michael@0	106	bool aNoiseOn, uint32_t aNoise,
michael@0	107	int32_t aPlayoutDelay) { return NS_OK; };
michael@0	108	virtual void NotifyPull(MediaStreamGraph* aGraph,
michael@0	109	SourceMediaStream *aSource,
michael@0	110	TrackID aId,
michael@0	111	StreamTime aDesiredTime,
michael@0	112	TrackTicks &aLastEndTime) {}
michael@0	113
michael@0	114	virtual bool IsFake() {
michael@0	115	return true;
michael@0	116	}
michael@0	117
michael@0	118	NS_DECL_THREADSAFE_ISUPPORTS
michael@0	119	NS_DECL_NSITIMERCALLBACK
michael@0	120
michael@0	121	protected:
michael@0	122	TrackID mTrackID;
michael@0	123	nsCOMPtr<nsITimer> mTimer;
michael@0	124
michael@0	125	SourceMediaStream* mSource;
michael@0	126	nsAutoPtr<SineWaveGenerator> mSineGenerator;
michael@0	127	};
michael@0	128
michael@0	129
michael@0	130	class MediaEngineDefault : public MediaEngine
michael@0	131	{
michael@0	132	public:
michael@0	133	MediaEngineDefault()
michael@0	134	: mMutex("mozilla::MediaEngineDefault")
michael@0	135	{}
michael@0	136
michael@0	137	virtual void EnumerateVideoDevices(nsTArray<nsRefPtr<MediaEngineVideoSource> >*);
michael@0	138	virtual void EnumerateAudioDevices(nsTArray<nsRefPtr<MediaEngineAudioSource> >*);
michael@0	139
michael@0	140	private:
michael@0	141	~MediaEngineDefault() {}
michael@0	142
michael@0	143	Mutex mMutex;
michael@0	144	// protected with mMutex:
michael@0	145
michael@0	146	nsTArray<nsRefPtr<MediaEngineVideoSource> > mVSources;
michael@0	147	nsTArray<nsRefPtr<MediaEngineAudioSource> > mASources;
michael@0	148	};
michael@0	149
michael@0	150	}
michael@0	151
michael@0	152	#endif /* NSMEDIAENGINEDEFAULT_H_ */