OpenCV/opencv/3rdparty/openexr/IlmImf/ImfFramesPerSecond.cpp

///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2006, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
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// its contributors may be used to endorse or promote products derived
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///////////////////////////////////////////////////////////////////////////

//-----------------------------------------------------------------------------
//
//	Convenience functions related to the framesPerSecond attribute
//
//-----------------------------------------------------------------------------

#include <ImfFramesPerSecond.h>
#include "ImathFun.h"

using namespace IMATH_NAMESPACE;
#include "ImfNamespace.h"

OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER

Rational
guessExactFps (double fps)
{
    return guessExactFps (Rational (fps));
}


Rational
guessExactFps (const Rational &fps)
{
    const double e = 0.002;

    if (abs (double (fps) - double (fps_23_976())) < e)
	return fps_23_976();

    if (abs (double (fps) - double (fps_29_97())) < e)
	return fps_29_97();

    if (abs (double (fps) - double (fps_47_952())) < e)
	return fps_47_952();

    if (abs (double (fps) - double (fps_59_94())) < e)
	return fps_59_94();

    return fps;
}

OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_EXIT