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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="Utilities.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// Defines the Utilities type.
// </summary>
// --------------------------------------------------------------------------------------------------------------------
using HandBrake.Interop.Model.Encoding;
namespace HandBrake.Interop
{
public static class Utilities
{
public static int GreatestCommonFactor(int a, int b)
{
if (a == 0)
{
return b;
}
if (b == 0)
{
return a;
}
if (a > b)
{
return GreatestCommonFactor(a % b, b);
}
else
{
return GreatestCommonFactor(a, b % a);
}
}
/// <summary>
/// Determines if the given audio encoder is a passthrough encoder choice.
/// </summary>
/// <param name="encoder">The audio encoder to examine.</param>
/// <returns>True if the encoder is passthrough.</returns>
public static bool IsPassthrough(AudioEncoder encoder)
{
return encoder == AudioEncoder.Ac3Passthrough || encoder == AudioEncoder.Passthrough;
}
}
}
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