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CMMFVideoPreProcHwDevice Class Reference

class CMMFVideoPreProcHwDevice : public CMMFVideoRecordHwDevice

CMMFVideoPreProcHwDevice is the MSL video pre-processor plug-in interface. All MSL video pre-processors must implement this interface.

Inherits from

CMMFVideoPreProcHwDevice

Public Member Functions
	~CMMFVideoPreProcHwDevice ()
IMPORT_C CMMFVideoPreProcHwDevice *	NewL ( TUid , MMMFDevVideoRecordProxy &)
void	ReturnPicture ( TVideoPicture *)
void	SetOutputDevice ( CMMFVideoEncodeHwDevice *)
void	SetOutputFormatL (const TUncompressedVideoFormat &)

Protected Member Functions
	CMMFVideoPreProcHwDevice ()
void	SetProxy ( MMMFDevVideoRecordProxy &)

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()
	CMMFVideoHwDevice::CustomInterface(TUid)
	CMMFVideoRecordHwDevice::CommitL()
	CMMFVideoRecordHwDevice::Freeze()
	CMMFVideoRecordHwDevice::GetFrameStabilisationOutput(TRect &)
	CMMFVideoRecordHwDevice::GetPictureCounters(CMMFDevVideoRecord::TPictureCounters &)
	CMMFVideoRecordHwDevice::Initialize()
	CMMFVideoRecordHwDevice::InputEnd()
	CMMFVideoRecordHwDevice::NumComplexityLevels()
	CMMFVideoRecordHwDevice::Pause()
	CMMFVideoRecordHwDevice::PreProcessorInfoLC()
	CMMFVideoRecordHwDevice::RecordingPosition()
	CMMFVideoRecordHwDevice::ReleaseFreeze()
	CMMFVideoRecordHwDevice::Resume()
	CMMFVideoRecordHwDevice::Revert()
	CMMFVideoRecordHwDevice::SetClockSource(MMMFClockSource *)
	CMMFVideoRecordHwDevice::SetColorEnhancementOptionsL(const TColorEnhancementOptions &)
	CMMFVideoRecordHwDevice::SetComplexityLevel(TUint)
	CMMFVideoRecordHwDevice::SetCustomPreProcessOptionsL(const TDesC8 &)
	CMMFVideoRecordHwDevice::SetFrameStabilisationOptionsL(const TSize &,TBool)
	CMMFVideoRecordHwDevice::SetInputCropOptionsL(const TRect &)
	CMMFVideoRecordHwDevice::SetInputFormatL(const TUncompressedVideoFormat &,const TSize &)
	CMMFVideoRecordHwDevice::SetOutputCropOptionsL(const TRect &)
	CMMFVideoRecordHwDevice::SetOutputPadOptionsL(const TSize &,const TPoint &)
	CMMFVideoRecordHwDevice::SetPreProcessTypesL(TUint32)
	CMMFVideoRecordHwDevice::SetRgbToYuvOptionsL(TRgbRange,const TYuvFormat &)
	CMMFVideoRecordHwDevice::SetRotateOptionsL(TRotationType)
	CMMFVideoRecordHwDevice::SetScaleOptionsL(const TSize &,TBool)
	CMMFVideoRecordHwDevice::SetSourceCameraL(TInt,TReal)
	CMMFVideoRecordHwDevice::SetSourceMemoryL(TReal,TBool,TBool)
	CMMFVideoRecordHwDevice::SetYuvToYuvOptionsL(const TYuvFormat &,const TYuvFormat &)
	CMMFVideoRecordHwDevice::Start()
	CMMFVideoRecordHwDevice::Stop()
	CMMFVideoRecordHwDevice::WritePictureL(TVideoPicture *)

Private Attributes
TUid	iDtor_ID_Key

Constructor & Destructor Documentation

CMMFVideoPreProcHwDevice()

IMPORT_C

CMMFVideoPreProcHwDevice

(

)

[protected]

Constructor.

~CMMFVideoPreProcHwDevice()

IMPORT_C

~CMMFVideoPreProcHwDevice

(

)

[virtual]

Destructor.

Member Functions Documentation

NewL(TUid, MMMFDevVideoRecordProxy &)

IMPORT_C CMMFVideoPreProcHwDevice *	NewL	(	TUid	aUid,
			MMMFDevVideoRecordProxy &	aProxy
		)	[static]

Creates a new video pre-processor hardware device object, based on the implementation UID.

leave: "This method will leave if an error occurs."

Parameters

TUid aUid	"Pre-processor implementation UID."
MMMFDevVideoRecordProxy & aProxy	"The proxy implementation to use."

ReturnPicture(TVideoPicture *)

void

ReturnPicture

(

TVideoPicture *

aPicture

)

[pure virtual]

Returns a used picture back to the pre-processor. Called by an encoder device when used as output device from a pre-processor.

Pre-condition: "This method can only be called after the hwdevice has been initialized with Initialize()."

Parameters

TVideoPicture * aPicture

"The picture to return."

SetOutputDevice(CMMFVideoEncodeHwDevice *)

void

SetOutputDevice

(

CMMFVideoEncodeHwDevice *

aDevice

)

[pure virtual]

Sets the video encoder device that will receive data from this pre-processor. Pre-processed pictures will be written with WritePictureL() or through a custom interface, and the encoder will return used pictures using ReturnPicture() .

Pre-condition: "This method can only be called before the hwdevice has been initialized with Initialize()."

Parameters

CMMFVideoEncodeHwDevice * aDevice

"The output encoder device to use."

SetOutputFormatL(const TUncompressedVideoFormat &)

void

SetOutputFormatL

(

const TUncompressedVideoFormat &

aFormat

)

[pure virtual]

Sets the device output format. The picture size depends on the input data format and possible scaling performed.

leave: " The method will leave if an error occurs. Typical error codes used: - KErrNotSupported - The format specified is not supported."

Pre-condition: "This method can only be called before the hwdevice has been initialized with Initialize()."

Parameters

const TUncompressedVideoFormat & aFormat

"The video format to use."

SetProxy(MMMFDevVideoRecordProxy &)

void

SetProxy

(

MMMFDevVideoRecordProxy &

aProxy

)

[protected, pure virtual]

Set the proxy implementation to be used. Called just after the object is constructed.

Parameters

MMMFDevVideoRecordProxy & aProxy

"The proxy to use."

Member Data Documentation

TUid iDtor_ID_Key

TUid

iDtor_ID_Key

[private]