Import Keyframes into database (#13771)

* Migrate keyframe data into database

* Clear database table before import to handle failed migrations

src/Jellyfin.Database/Jellyfin.Database.Implementations/Entities/KeyframeData.cs

@@ -0,0 +1,32 @@
+#pragma warning disable CA2227 // Collection properties should be read only
+
+using System;
+using System.Collections.Generic;
+
+namespace Jellyfin.Database.Implementations.Entities;
+
+/// <summary>
+/// Keyframe information for a specific file.
+/// </summary>
+public class KeyframeData
+{
+    /// <summary>
+    /// Gets or Sets the ItemId.
+    /// </summary>
+    public required Guid ItemId { get; set; }
+
+    /// <summary>
+    /// Gets or sets the total duration of the stream in ticks.
+    /// </summary>
+    public long TotalDuration { get; set; }
+
+    /// <summary>
+    /// Gets or sets the keyframes in ticks.
+    /// </summary>
+    public ICollection<long>? KeyframeTicks { get; set; }
+
+    /// <summary>
+    /// Gets or sets the item reference.
+    /// </summary>
+    public BaseItemEntity? Item { get; set; }
+}

src/Jellyfin.Database/Jellyfin.Database.Implementations/JellyfinDbContext.cs

@@ -157,6 +157,11 @@ public class JellyfinDbContext(DbContextOptions<JellyfinDbContext> options, ILog
     /// </summary>
     public DbSet<BaseItemTrailerType> BaseItemTrailerTypes => Set<BaseItemTrailerType>();
 
+    /// <summary>
+    /// Gets the <see cref="DbSet{TEntity}"/>.
+    /// </summary>
+    public DbSet<KeyframeData> KeyframeData => Set<KeyframeData>();
+
     /*public DbSet<Artwork> Artwork => Set<Artwork>();
 
     public DbSet<Book> Books => Set<Book>();

src/Jellyfin.Database/Jellyfin.Database.Implementations/ModelConfiguration/KeyframeDataConfiguration.cs

@@ -0,0 +1,18 @@
+using Jellyfin.Database.Implementations.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Jellyfin.Database.Implementations.ModelConfiguration;
+
+/// <summary>
+/// KeyframeData Configuration.
+/// </summary>
+public class KeyframeDataConfiguration : IEntityTypeConfiguration<KeyframeData>
+{
+    /// <inheritdoc/>
+    public void Configure(EntityTypeBuilder<KeyframeData> builder)
+    {
+        builder.HasKey(e => e.ItemId);
+        builder.HasOne(e => e.Item).WithMany().HasForeignKey(e => e.ItemId);
+    }
+}