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Improve rounding - thx OmrSi :)

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This commit is contained in:
niksedk 2021-11-23 14:05:45 +01:00
parent d19b259771
commit 85d0b121fa
2 changed files with 13 additions and 5 deletions
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16
src/Test/Logic/SubtitleFormats/SubtitleFormatFunctionsTest.cs
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@ -4,21 +4,29 @@ using Nikse.SubtitleEdit.Core.SubtitleFormats;
namespace Test.Logic.SubtitleFormats
{
[TestClass]
public class SubtitleFormatFunctionsTest
{
[TestMethod]
public void MillisecondsToFrames1()
{
var x = SubtitleFormat.MillisecondsToFrames(500, 25);
Assert.AreEqual(x, 13);
var frames = SubtitleFormat.MillisecondsToFrames(500, 25);
Assert.AreEqual(13, frames);
}
[TestMethod]
public void MillisecondsToFrames2()
{
var frames = SubtitleFormat.MillisecondsToFrames(499, 25);
Assert.AreEqual(12, frames);
}
[TestMethod]
public void FramesToMilliseconds1()
{
Configuration.Settings.General.CurrentFrameRate = 25.0;
var x = SubtitleFormat.FramesToMilliseconds(1);
Assert.AreEqual(x, 40);
var ms = SubtitleFormat.FramesToMilliseconds(1);
Assert.AreEqual(ms, 40);
}
}
}

2
src/libse/SubtitleFormats/SubtitleFormat.cs
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@ -425,7 +425,7 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
public static int MillisecondsToFrames(double milliseconds, double frameRate)
{
return (int)Math.Round(milliseconds / (TimeCode.BaseUnit / GetFrameForCalculation(frameRate)));
return (int)Math.Round(milliseconds / (TimeCode.BaseUnit / GetFrameForCalculation(frameRate)), MidpointRounding.AwayFromZero);
}
public static double GetFrameForCalculation(double frameRate)