gecko/content/media/MediaEngineDefault.h
2012-06-03 00:34:40 -07:00

116 lines
2.9 KiB
C++

/* 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 MEDIAENGINEDEFAULT_H_
#define MEDIAENGINEDEFAULT_H_
#include "prmem.h"
#include "nsITimer.h"
#include "nsCOMPtr.h"
#include "nsDOMMediaStream.h"
#include "nsComponentManagerUtils.h"
#include "Layers.h"
#include "VideoUtils.h"
#include "MediaEngine.h"
#include "ImageLayers.h"
#include "VideoSegment.h"
#include "AudioSegment.h"
#include "StreamBuffer.h"
#include "MediaStreamGraph.h"
namespace mozilla {
/**
* The default implementation of the MediaEngine interface.
*/
enum DefaultEngineState {
kAllocated,
kStarted,
kStopped,
kReleased
};
class MediaEngineDefaultVideoSource : public nsITimerCallback,
public MediaEngineVideoSource
{
public:
MediaEngineDefaultVideoSource() : mTimer(nsnull), mState(kReleased) {}
~MediaEngineDefaultVideoSource(){};
virtual void GetName(nsAString&);
virtual void GetUUID(nsAString&);
virtual MediaEngineVideoOptions GetOptions();
virtual already_AddRefed<nsDOMMediaStream> Allocate();
virtual nsresult Deallocate();
virtual nsresult Start(SourceMediaStream*, TrackID);
virtual nsresult Stop();
virtual nsresult Snapshot(PRUint32 aDuration, nsIDOMFile** aFile);
NS_DECL_ISUPPORTS
NS_DECL_NSITIMERCALLBACK
protected:
TrackID mTrackID;
nsCOMPtr<nsITimer> mTimer;
nsRefPtr<layers::ImageContainer> mImageContainer;
DefaultEngineState mState;
SourceMediaStream* mSource;
layers::PlanarYCbCrImage* mImage;
};
class MediaEngineDefaultAudioSource : public nsITimerCallback,
public MediaEngineAudioSource
{
public:
MediaEngineDefaultAudioSource() : mTimer(nsnull), mState(kReleased) {}
~MediaEngineDefaultAudioSource(){};
virtual void GetName(nsAString&);
virtual void GetUUID(nsAString&);
virtual already_AddRefed<nsDOMMediaStream> Allocate();
virtual nsresult Deallocate();
virtual nsresult Start(SourceMediaStream*, TrackID);
virtual nsresult Stop();
virtual nsresult Snapshot(PRUint32 aDuration, nsIDOMFile** aFile);
NS_DECL_ISUPPORTS
NS_DECL_NSITIMERCALLBACK
protected:
TrackID mTrackID;
nsCOMPtr<nsITimer> mTimer;
DefaultEngineState mState;
SourceMediaStream* mSource;
};
class MediaEngineDefault : public MediaEngine
{
public:
MediaEngineDefault() {
mVSource = new MediaEngineDefaultVideoSource();
mASource = new MediaEngineDefaultAudioSource();
}
~MediaEngineDefault() {}
virtual void EnumerateVideoDevices(nsTArray<nsRefPtr<MediaEngineVideoSource> >*);
virtual void EnumerateAudioDevices(nsTArray<nsRefPtr<MediaEngineAudioSource> >*);
private:
nsRefPtr<MediaEngineVideoSource> mVSource;
nsRefPtr<MediaEngineAudioSource> mASource;
};
}
#endif /* NSMEDIAENGINEDEFAULT_H_ */