ImfFramesPerSecond.cpp

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// Copyright (c) 2006, Industrial Light & Magic, a division of Lucas
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//-----------------------------------------------------------------------------
//
//	Convenience functions related to the framesPerSecond attribute
//
//-----------------------------------------------------------------------------

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

using namespace Imath;

namespace Imf {

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;
}

} // namespace Imf