test

My project/Library/PackageCache/com.unity.timeline/Samples~/Customization/Video/Editor/Timeline.Samples.Video.Editor.asmdef

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My project/Library/PackageCache/com.unity.timeline/Samples~/Customization/Video/Editor/VideoAssetClipEditor.cs

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+using UnityEditor;
+using UnityEditor.Timeline;
+using UnityEngine;
+using UnityEngine.Timeline;
+
+namespace Timeline.Samples
+{
+    // Editor used by the TimelineEditor to customize the view of a VideoPlayableAsset
+    [CustomTimelineEditor(typeof(VideoPlayableAsset))]
+    public class VideoAssetClipEditor : ClipEditor
+    {
+        // Called by the Timeline Editor to draw the background of the timeline clip
+        // when the clip has a VideoPlayableAsset attached
+        public override void DrawBackground(TimelineClip clip, ClipBackgroundRegion region)
+        {
+            VideoPlayableAsset videoAsset = clip.asset as VideoPlayableAsset;
+            if (videoAsset != null && videoAsset.videoClip != null)
+            {
+                // Load the preview or the thumbnail for the video
+                Texture texturePreview = AssetPreview.GetAssetPreview(videoAsset.videoClip);
+                if (texturePreview == null)
+                    texturePreview = AssetPreview.GetMiniThumbnail(videoAsset.videoClip);
+
+                if (texturePreview != null)
+                {
+                    Rect rect = region.position;
+                    rect.width = texturePreview.width * rect.height / texturePreview.height;
+                    GUI.DrawTexture(rect, texturePreview, ScaleMode.StretchToFill);
+                }
+            }
+        }
+    }
+}

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