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/* 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 "nsITimer.h"
#include "nsAutoPtr.h"
#include "nsCOMPtr.h"
#include "DOMMediaStream.h"
#include "nsComponentManagerUtils.h"
#include "mozilla/Monitor.h"
#include "VideoUtils.h"
#include "MediaEngine.h"
#include "VideoSegment.h"
#include "AudioSegment.h"
#include "StreamTracks.h"
#ifdef MOZ_WEBRTC
#include "MediaEngineCameraVideoSource.h"
#endif
#include "MediaStreamGraph.h"
#include "MediaTrackConstraints.h"
namespace mozilla {
namespace layers {
class ImageContainer;
} // namespace layers
class MediaEngineDefault;
/**
* The default implementation of the MediaEngine interface.
*/
class MediaEngineDefaultVideoSource : public nsITimerCallback,
#ifdef MOZ_WEBRTC
public MediaEngineCameraVideoSource
#else
public MediaEngineVideoSource
#endif
{
public:
MediaEngineDefaultVideoSource();
void GetName(nsAString&) const override;
void GetUUID(nsACString&) const override;
nsresult Allocate(const dom::MediaTrackConstraints &aConstraints,
const MediaEnginePrefs &aPrefs,
const nsString& aDeviceId,
const nsACString& aOrigin,
AllocationHandle** aOutHandle,
const char** aOutBadConstraint) override;
nsresult Deallocate(AllocationHandle* aHandle) override;
nsresult Start(SourceMediaStream*, TrackID, const PrincipalHandle&) override;
nsresult Stop(SourceMediaStream*, TrackID) override;
nsresult Restart(AllocationHandle* aHandle,
const dom::MediaTrackConstraints& aConstraints,
const MediaEnginePrefs &aPrefs,
const nsString& aDeviceId,
const char** aOutBadConstraint) override;
void SetDirectListeners(bool aHasDirectListeners) override {};
void NotifyPull(MediaStreamGraph* aGraph,
SourceMediaStream *aSource,
TrackID aId,
StreamTime aDesiredTime,
const PrincipalHandle& aPrincipalHandle) override;
uint32_t GetBestFitnessDistance(
const nsTArray<const NormalizedConstraintSet*>& aConstraintSets,
const nsString& aDeviceId) const override;
bool IsFake() override {
return true;
}
dom::MediaSourceEnum GetMediaSource() const override {
return dom::MediaSourceEnum::Camera;
}
nsresult TakePhoto(MediaEnginePhotoCallback* aCallback) override
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSITIMERCALLBACK
protected:
~MediaEngineDefaultVideoSource();
friend class MediaEngineDefault;
TrackID mTrackID;
nsCOMPtr<nsITimer> mTimer;
// mMonitor protects mImage access/changes, and transitions of mState
// from kStarted to kStopped (which are combined with EndTrack() and
// image changes).
Monitor mMonitor;
RefPtr<layers::Image> mImage;
RefPtr<layers::ImageContainer> mImageContainer;
MediaEnginePrefs mOpts;
int mCb;
int mCr;
};
class SineWaveGenerator;
class MediaEngineDefaultAudioSource : public MediaEngineAudioSource
{
public:
MediaEngineDefaultAudioSource();
void GetName(nsAString&) const override;
void GetUUID(nsACString&) const override;
nsresult Allocate(const dom::MediaTrackConstraints &aConstraints,
const MediaEnginePrefs &aPrefs,
const nsString& aDeviceId,
const nsACString& aOrigin,
AllocationHandle** aOutHandle,
const char** aOutBadConstraint) override;
nsresult Deallocate(AllocationHandle* aHandle) override;
nsresult Start(SourceMediaStream*, TrackID, const PrincipalHandle&) override;
nsresult Stop(SourceMediaStream*, TrackID) override;
nsresult Restart(AllocationHandle* aHandle,
const dom::MediaTrackConstraints& aConstraints,
const MediaEnginePrefs &aPrefs,
const nsString& aDeviceId,
const char** aOutBadConstraint) override;
void SetDirectListeners(bool aHasDirectListeners) override {};
void inline AppendToSegment(AudioSegment& aSegment,
TrackTicks aSamples,
const PrincipalHandle& aPrincipalHandle);
void NotifyPull(MediaStreamGraph* aGraph,
SourceMediaStream *aSource,
TrackID aId,
StreamTime aDesiredTime,
const PrincipalHandle& aPrincipalHandle) override;
void NotifyOutputData(MediaStreamGraph* aGraph,
AudioDataValue* aBuffer, size_t aFrames,
TrackRate aRate, uint32_t aChannels) override
{}
void NotifyInputData(MediaStreamGraph* aGraph,
const AudioDataValue* aBuffer, size_t aFrames,
TrackRate aRate, uint32_t aChannels) override
{}
void DeviceChanged() override
{}
bool IsFake() override {
return true;
}
dom::MediaSourceEnum GetMediaSource() const override {
return dom::MediaSourceEnum::Microphone;
}
nsresult TakePhoto(MediaEnginePhotoCallback* aCallback) override
{
return NS_ERROR_NOT_IMPLEMENTED;
}
uint32_t GetBestFitnessDistance(
const nsTArray<const NormalizedConstraintSet*>& aConstraintSets,
const nsString& aDeviceId) const override;
NS_DECL_THREADSAFE_ISUPPORTS
protected:
~MediaEngineDefaultAudioSource();
TrackID mTrackID;
TrackTicks mLastNotify; // Accessed in ::Start(), then on NotifyPull (from MSG thread)
// Created on Allocate, then accessed from NotifyPull (MSG thread)
nsAutoPtr<SineWaveGenerator> mSineGenerator;
};
class MediaEngineDefault : public MediaEngine
{
typedef MediaEngine Super;
public:
explicit MediaEngineDefault() : mMutex("mozilla::MediaEngineDefault") {}
void EnumerateVideoDevices(dom::MediaSourceEnum,
nsTArray<RefPtr<MediaEngineVideoSource> >*) override;
void EnumerateAudioDevices(dom::MediaSourceEnum,
nsTArray<RefPtr<MediaEngineAudioSource> >*) override;
void Shutdown() override {
MutexAutoLock lock(mMutex);
mVSources.Clear();
mASources.Clear();
};
private:
~MediaEngineDefault() {}
Mutex mMutex;
// protected with mMutex:
nsTArray<RefPtr<MediaEngineVideoSource> > mVSources;
nsTArray<RefPtr<MediaEngineAudioSource> > mASources;
};
} // namespace mozilla
#endif /* NSMEDIAENGINEDEFAULT_H_ */
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