///////////////////////////////////////////////////////////////////////////

//

// 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

// met:

// *       Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

// *       Redistributions in binary form must reproduce the above

// copyright notice, this list of conditions and the following disclaimer

// in the documentation and/or other materials provided with the

// distribution.

// *       Neither the name of Industrial Light & Magic nor the names of

// its contributors may be used to endorse or promote products derived

// from this software without specific prior written permission. 

// 

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

///////////////////////////////////////////////////////////////////////////

//-----------------------------------------------------------------------------

//

//	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