NvTransform.h

#pragma once
 
#include "Module.h"
 
class NvTransformProps : public ModuleProps
{
public:
    enum NvTransformFilter
    {
        NEAREST=0, // transform filter nearest.
        BILINEAR,  // transform filter bilinear.
        TAP_5,     // transform filter 5 tap.
        TAP_10,    // transform filter 10 tap.
        SMART,     // transform filter smart.
        NICEST     // transform filter nicest.
    };
 
    NvTransformProps(ImageMetadata::ImageType _imageType) : top(0) , left(0) , width(0) , height(0)
    {
        imageType = _imageType;
        scaleHeight = 1;
        scaleWidth = 1;
        filterType = NvTransformFilter::SMART;
    }
    NvTransformProps(ImageMetadata::ImageType _imageType, int _width, int _height) : top(0) , left(0) , width(_width) , height(_height)
    {
        imageType = _imageType;
        scaleHeight = 1;
        scaleWidth = 1;
        filterType = NvTransformFilter::SMART;
    }
    NvTransformProps(ImageMetadata::ImageType _imageType, int _width, int _height, float _scaleWidth, float _scaleHeight, NvTransformFilter _filterType) : top(0) , left(0) , width(_width) , height(_height)
    {
        imageType = _imageType;
        filterType = _filterType;
        scaleHeight = _scaleHeight;
        scaleWidth = _scaleWidth;
    }
    NvTransformProps(ImageMetadata::ImageType _imageType, int _width, int _height,  int _top , int _left) : top(_top) , left(_left) , width(_width) , height(_height)
    {
        imageType = _imageType;
        scaleHeight = 1;
        scaleWidth = 1;
        filterType = NvTransformFilter::SMART;
    }
    NvTransformProps(ImageMetadata::ImageType _imageType, int _width, int _height,  int _top , int _left, float _scaleWidth, float _scaleHeight, NvTransformFilter _filterType) : top(_top) , left(_left) , width(_width) , height(_height)
    {
        imageType = _imageType;
        filterType = _filterType;
        scaleHeight = _scaleHeight;
        scaleWidth = _scaleWidth;
    }
    ImageMetadata::ImageType imageType;    
    int top,left,width,height;
    NvTransformFilter filterType;
    float scaleWidth, scaleHeight; // scaleWidth and scaleHeight are factor of width and height , 
                                   //1 means no change 0.5 means half of actual dimension ,2 means twice of actual dimension    
};
 
class NvTransform : public Module
{
 
public:
    NvTransform(NvTransformProps _props);
    virtual ~NvTransform();
    bool init();
    bool term();
 
protected:
    bool process(frame_container& frames);
    bool processSOS(frame_sp& frame);
    bool validateInputPins();
    bool validateOutputPins();
    void addInputPin(framemetadata_sp& metadata, string& pinId); // throws exception if validation fails
    bool processEOS(string& pinId);
 
private:
    void setMetadata(framemetadata_sp& metadata);
    class Detail;
    boost::shared_ptr<Detail> mDetail;
};