Murl::Util::VideoScaler Class Reference

The video scaler class. More...

#include "murl_util_video_scaler.h"

Inheritance diagram for Murl::Util::VideoScaler:

Public Member Functions
	VideoScaler (const IFilter *filter)
	Constructor creating a scaler using a specified filter. More...
	~VideoScaler () override
	The destructor.
Bool	Scale (const ConstData &srcData, const MutableData &dstData, UInt32 srcPixelSizeX, UInt32 srcPixelSizeY, UInt32 srcBytePitch, UInt32 dstPixelSizeX, UInt32 dstPixelSizeY, UInt32 dstBytePitch, IEnums::PixelFormat pixelFormat, Real gamma) const override
	Implementation of IVideoScaler::Scale(). More...
Public Member Functions inherited from Murl::IVideoScaler
virtual	~IVideoScaler ()
	The destructor.

Protected Member Functions
virtual Bool	ScaleFast (const ConstData &srcData, const MutableData &dstData, UInt32 srcPixelSizeX, UInt32 srcPixelSizeY, UInt32 srcBytePitch, UInt32 dstPixelSizeX, UInt32 dstPixelSizeY, UInt32 dstBytePitch, IEnums::PixelFormat pixelFormat, Real gamma) const
	Alternative scale method for overloading. More...

Detailed Description

The video scaler class.

Constructor & Destructor Documentation

VideoScaler()

Murl::Util::VideoScaler::VideoScaler

(

const IFilter *

filter

)

Constructor creating a scaler using a specified filter.

Parameters

filter

The filter used for scaling.

Member Function Documentation

Scale()

Bool Murl::Util::VideoScaler::Scale ( const ConstData &  srcData, const MutableData &  dstData, UInt32  srcPixelSizeX, UInt32  srcPixelSizeY, UInt32  srcBytePitch, UInt32  dstPixelSizeX, UInt32  dstPixelSizeY, UInt32  dstBytePitch, IEnums::PixelFormat  pixelFormat, Real  gamma  ) const

overridevirtual

Implementation of IVideoScaler::Scale().

Parameters

srcData	The source image data.
dstData	The destination image data.
srcPixelSizeX	The number of horizontal source pixels.
srcPixelSizeY	The number of vertical source pixels.
srcBytePitch	The number of source bytes per line.
dstPixelSizeX	The number of horizontal destination pixels.
dstPixelSizeY	The number of vertical destination pixels.
dstBytePitch	The number of destination bytes per line.
pixelFormat	The pixel format.
gamma	The gamma value. Specify 1.0 to disable gamma correct scaling.

Returns

true if successful.

Implements Murl::IVideoScaler.

ScaleFast()

virtual Bool Murl::Util::VideoScaler::ScaleFast ( const ConstData &  srcData, const MutableData &  dstData, UInt32  srcPixelSizeX, UInt32  srcPixelSizeY, UInt32  srcBytePitch, UInt32  dstPixelSizeX, UInt32  dstPixelSizeY, UInt32  dstBytePitch, IEnums::PixelFormat  pixelFormat, Real  gamma  ) const

protectedvirtual

Alternative scale method for overloading.

A derived class can implement alternative scaling algorithms by overloading this method and returning true if alternative scaling has been performed.

Parameters

srcData	The source image data.
dstData	The destination image data.
srcPixelSizeX	The number of horizontal source pixels.
srcPixelSizeY	The number of vertical source pixels.
srcBytePitch	The number of source bytes per line.
dstPixelSizeX	The number of horizontal destination pixels.
dstPixelSizeY	The number of vertical destination pixels.
dstBytePitch	The number of destination bytes per line.
pixelFormat	The pixel format.
gamma	The gamma value. Specify 1.0 to disable gamma correct scaling.

Returns

false if fast scaling is not supported.

Reimplemented in Murl::Util::BoxVideoScaler.

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The documentation for this class was generated from the following file:

• murl_util_video_scaler.h