vetInput.cpp

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 #include "vetInput.h"
 #include "vetUtility.h"


#include <time.h>

//CLK_TCK
//CLOCKS_PER_SEC



vetInput::vetInput(float fps)
 {
        v_elab_start = 0;
        setFrameRate(fps);

        DEBUGMSG("vetInput::vetInput(float fps) [CONTRUCTOR] ", fps)
 }



VETRESULT vetInput::setFrameRate(float fps)
 {
        if (fps < 0.)
                return VETRET_PARAM_ERR;

        v_framerate = fps;

        if ( fps == 0 )
                v_sleeptime = 0;
        else
                v_sleeptime = (long)( (float)1000 / fps ); // milliseconds

        DEBUGMSG("VETRESULT vetInput::setFrameRate(float fps)", fps)

        return VETRET_OK;
 }


inline void vetInput::setElaborationStart()
 {
        v_elab_start = clock();
 }

inline long vetInput::getElaborationTime()
 {
        return 1000 * (clock() - v_elab_start) / CLOCKS_PER_SEC;//CLK_TCK;
 }



vetInput& vetInput::operator >> (vetFrameRGB24& img)
 {
        INFO("vetInput& vetInput::operator >> (vetFrameYUV420& img) [pushing data]")

        setElaborationStart();

        extractTo(img);

        if ( v_sleeptime && v_sleeptime > (long)getElaborationTime())
                vetUtility::vetSleep( v_sleeptime - (long)getElaborationTime() );    // milliseconds

        DEBUG(getElaborationTime());
        return *this;
 }


vetInput& vetInput::operator >> (vetFrameYUV420& img)
 {
        INFO("vetInput& vetInput::operator >> (vetFrameYUV420& img) [pushing data]")

        setElaborationStart();

        extractTo(img);

        if ( v_sleeptime && v_sleeptime > (long)getElaborationTime())
                vetUtility::vetSleep( v_sleeptime - (long)getElaborationTime() );    // milliseconds

        DEBUG(getElaborationTime());
        return *this;
 }


vetInput& vetInput::operator >> (vetFrameT<unsigned char>& img)
 {
        INFO("vetInput& vetInput::operator >> (vetFrameT& img) [pushing data]")

        setElaborationStart();

        extractTo(img);

        if ( v_sleeptime && v_sleeptime > (long)getElaborationTime())
                vetUtility::vetSleep( v_sleeptime - (long)getElaborationTime() );    // milliseconds

        DEBUG(getElaborationTime());
        return *this;
 }

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