first commit

Library/PackageCache/com.unity.timeline@1.7.6/Editor/Utilities/FrameRateDisplayUtility.cs

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+using System;
+using System.Linq;
+using UnityEditor;
+using UnityEngine;
+using UnityEngine.Playables;
+using UnityEngine.Timeline;
+
+namespace UnityEditor.Timeline
+{
+    static class FrameRateDisplayUtility
+    {
+        private static string[] s_FrameRateLabels;
+        public static bool GetStandardFromFrameRate(double frameRate, out StandardFrameRates standard)
+        {
+            FrameRate frameRateObj = TimeUtility.GetClosestFrameRate(RoundFrameRate(frameRate));
+            return TimeUtility.ToStandardFrameRate(frameRateObj, out standard);
+        }
+
+        public static double RoundFrameRate(double frameRate)
+        {
+            double trunc = Math.Truncate(frameRate * (1 / TimeUtility.kFrameRateRounding)) * TimeUtility.kFrameRateRounding;
+            return Math.Min(Math.Max(TimelineAsset.EditorSettings.kMinFrameRate, trunc),
+                TimelineAsset.EditorSettings.kMaxFrameRate);
+        }
+
+        public static string[] GetDefaultFrameRatesLabels(StandardFrameRates option)
+        {
+            string[] labels;
+            if (s_FrameRateLabels == null || !s_FrameRateLabels.Any())
+            {
+                var frameRates = (StandardFrameRates[])Enum.GetValues(typeof(StandardFrameRates));
+                labels = Array.ConvertAll(frameRates, GetLabelForStandardFrameRate);
+                s_FrameRateLabels = labels;
+            }
+            else
+            {
+                labels = s_FrameRateLabels;
+            }
+
+            if (!Enum.IsDefined(typeof(StandardFrameRates), option))
+            {
+                Array.Resize(ref labels, (int)option + 1);
+                labels[(int)option] = GetLabelForStandardFrameRate(option);
+            }
+            return labels;
+        }
+
+        static string GetLabelForStandardFrameRate(StandardFrameRates option)
+        {
+            switch (option)
+            {
+                case StandardFrameRates.Fps23_97:
+                    return L10n.Tr("Film NTSC: 23.97 fps");
+                case StandardFrameRates.Fps24:
+                    return L10n.Tr("Film: 24 fps");
+                case StandardFrameRates.Fps25:
+                    return L10n.Tr("PAL: 25 fps");
+                case StandardFrameRates.Fps29_97:
+                    return L10n.Tr("NTSC: 29.97 fps");
+                case StandardFrameRates.Fps30:
+                    return L10n.Tr("HD: 30 fps");
+                case StandardFrameRates.Fps50:
+                    return L10n.Tr("Interlaced PAL: 50 fps");
+                case StandardFrameRates.Fps59_94:
+                    return L10n.Tr("Interlaced NTSC: 59.94 fps");
+                case StandardFrameRates.Fps60:
+                    return L10n.Tr("Game: 60 fps");
+                default:
+                    return L10n.Tr("Custom");
+            }
+        }
+    }
+}