Murl::Util::BoxVideoScaler Class Reference

The box video scaler class uses the BoxFilter and supports optimized scaling to half of the size. More...

#include "murl_util_video_scaler.h"

Inheritance diagram for Murl::Util::BoxVideoScaler:

Public Member Functions
	BoxVideoScaler ()
	The default constructor. More...
	BoxVideoScaler (Double filterWidth)
	Constructor taking the filter width value. More...
Public Member Functions inherited from Murl::Util::VideoScaler
	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
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 override
	Optimized scaling to a quarter of the original size (half width and height). More...

Detailed Description

The box video scaler class uses the BoxFilter and supports optimized scaling to half of the size.

Constructor & Destructor Documentation

BoxVideoScaler() [1/2]

Murl::Util::BoxVideoScaler::BoxVideoScaler

(

)

The default constructor.

Create a BoxFilter having width 0.5.

BoxVideoScaler() [2/2]

Murl::Util::BoxVideoScaler::BoxVideoScaler

(

Double

filterWidth

)

Constructor taking the filter width value.

Parameters

filterWidth

The BoxFilter width.

Member Function Documentation

ScaleFast()

Bool Murl::Util::BoxVideoScaler::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

overrideprotectedvirtual

Optimized scaling to a quarter of the original size (half width and height).

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 not supported for the given set of parameters.

Reimplemented from Murl::Util::VideoScaler.

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

• murl_util_video_scaler.h