allow decimal image duration (#1619)

* add missing mysql migration

* allow decimal image duration

CHANGELOG.md

@@ -38,7 +38,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix timestamp continuity in `HLS Segmenter` sessions
   - This should make *some* clients happier 
 - Fix `Other Video`, `Song` and `Image` fallback metadata tags to always include parent folder (folder added to library) 
-- Allow playback of items with a duration of 1 second
+- Allow playback of items with any positive duration, including less than one second
 
 ### Changed
 - Log search index updates under scanner category at debug level, to indicate a potential cause for the UI being out of date

ErsatzTV.Application/Images/Commands/UpdateImageFolderDuration.cs

@@ -1,3 +1,3 @@
 namespace ErsatzTV.Application.Images;
 
-public record UpdateImageFolderDuration(int LibraryFolderId, int? ImageFolderDuration) : IRequest<int?>;
+public record UpdateImageFolderDuration(int LibraryFolderId, double? ImageFolderDuration) : IRequest<double?>;

ErsatzTV.Application/Images/Commands/UpdateImageFolderDurationHandler.cs

@@ -6,15 +6,15 @@ using Microsoft.EntityFrameworkCore;
 namespace ErsatzTV.Application.Images;
 
 public class UpdateImageFolderDurationHandler(IDbContextFactory<TvContext> dbContextFactory)
-    : IRequestHandler<UpdateImageFolderDuration, int?>
+    : IRequestHandler<UpdateImageFolderDuration, double?>
 {
-    public async Task<int?> Handle(UpdateImageFolderDuration request, CancellationToken cancellationToken)
+    public async Task<double?> Handle(UpdateImageFolderDuration request, CancellationToken cancellationToken)
     {
         await using TvContext dbContext = await dbContextFactory.CreateDbContextAsync(cancellationToken);
 
-        if (request.ImageFolderDuration.IfNone(1) < 1)
+        if (request.ImageFolderDuration.IfNone(1) < 0.01)
         {
-            request = request with { ImageFolderDuration = 1 };
+            request = request with { ImageFolderDuration = 0.01 };
         }
         
         // delete entry if null
@@ -61,7 +61,7 @@ public class UpdateImageFolderDurationHandler(IDbContextFactory<TvContext> dbCon
             LibraryFolder currentFolder = libraryFolder;
             
             // walk up to get duration, if needed
-            int? durationSeconds = currentFolder.ImageFolderDuration?.DurationSeconds;
+            double? durationSeconds = currentFolder.ImageFolderDuration?.DurationSeconds;
             while (durationSeconds is null && currentFolder?.ParentId is not null)
             {
                 Option<LibraryFolder> maybeParent = await dbContext.LibraryFolders
@@ -86,8 +86,8 @@ public class UpdateImageFolderDurationHandler(IDbContextFactory<TvContext> dbCon
         
         while (queue.Count > 0)
         {
-            (LibraryFolder currentFolder, int? parentDuration) = queue.Dequeue();
-            int? effectiveDuration = currentFolder.ImageFolderDuration?.DurationSeconds ?? parentDuration;
+            (LibraryFolder currentFolder, double? parentDuration) = queue.Dequeue();
+            double? effectiveDuration = currentFolder.ImageFolderDuration?.DurationSeconds ?? parentDuration;
 
             // Serilog.Log.Logger.Information(
             //     "Updating folder {Id} with parent duration {ParentDuration}, effective duration {EffectiveDuration}",
@@ -120,5 +120,5 @@ public class UpdateImageFolderDurationHandler(IDbContextFactory<TvContext> dbCon
         return request.ImageFolderDuration;
     }
 
-    private sealed record FolderWithParentDuration(LibraryFolder LibraryFolder, int? ParentDuration);
+    private sealed record FolderWithParentDuration(LibraryFolder LibraryFolder, double? ParentDuration);
 }

ErsatzTV.Application/Images/ImageFolderViewModel.cs

@@ -6,4 +6,4 @@ public record ImageFolderViewModel(
     string FullPath,
     int SubfolderCount,
     int ImageCount,
-    Option<int> DurationSeconds);
+    Option<double> DurationSeconds);

ErsatzTV.Application/Images/Mapper.cs

@@ -14,5 +14,5 @@ public static class Mapper
             libraryFolder.Path,
             childCount,
             imageCount,
-            libraryFolder.ImageFolderDuration?.DurationSeconds ?? Option<int>.None);
+            libraryFolder.ImageFolderDuration?.DurationSeconds ?? Option<double>.None);
 }

ErsatzTV.Application/Streaming/HlsSessionWorker.cs

@@ -342,9 +342,7 @@ public class HlsSessionWorker : IHlsSessionWorker
 
             _logger.LogDebug("HLS session state: {State}", _state);
 
-            DateTimeOffset now = _state is HlsSessionState.SeekAndWorkAhead
-                ? DateTimeOffset.Now
-                : _transcodedUntil.AddSeconds(_state is HlsSessionState.SeekAndRealtime ? 0 : 0.5);
+            DateTimeOffset now = _state is HlsSessionState.SeekAndWorkAhead ? DateTimeOffset.Now : _transcodedUntil;
             bool startAtZero = _state is HlsSessionState.ZeroAndWorkAhead or HlsSessionState.ZeroAndRealtime;
 
             var request = new GetPlayoutItemProcessByChannelNumber(

ErsatzTV.Core/Domain/MediaItem/ImageFolderDuration.cs

@@ -5,5 +5,5 @@ public class ImageFolderDuration
     public int Id { get; set; }
     public int LibraryFolderId { get; set; }
     public LibraryFolder LibraryFolder { get; set; }
-    public int DurationSeconds { get; set; }
+    public double DurationSeconds { get; set; }
 }

ErsatzTV.Core/Domain/Metadata/ImageMetadata.cs

@@ -2,7 +2,7 @@
 
 public class ImageMetadata : Metadata
 {
-    public int? DurationSeconds { get; set; }
+    public double? DurationSeconds { get; set; }
     public int ImageId { get; set; }
     public Image Image { get; set; }
 }

ErsatzTV.Infrastructure.MySql/Migrations/20240217013246_Add_ImageFolderDuration.cs

@@ -0,0 +1,49 @@
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ErsatzTV.Infrastructure.MySql.Migrations
+{
+    /// <inheritdoc />
+    public partial class Add_ImageFolderDuration : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "ImageFolderDuration",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("MySql:ValueGenerationStrategy", MySqlValueGenerationStrategy.IdentityColumn),
+                    LibraryFolderId = table.Column<int>(type: "int", nullable: false),
+                    DurationSeconds = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ImageFolderDuration", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ImageFolderDuration_LibraryFolder_LibraryFolderId",
+                        column: x => x.LibraryFolderId,
+                        principalTable: "LibraryFolder",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                })
+                .Annotation("MySql:CharSet", "utf8mb4");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ImageFolderDuration_LibraryFolderId",
+                table: "ImageFolderDuration",
+                column: "LibraryFolderId",
+                unique: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ImageFolderDuration");
+        }
+    }
+}

ErsatzTV.Infrastructure.MySql/Migrations/20240217015859_Update_ImageFolderDuration.cs

@@ -0,0 +1,52 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ErsatzTV.Infrastructure.MySql.Migrations
+{
+    /// <inheritdoc />
+    public partial class Update_ImageFolderDuration : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<double>(
+                name: "DurationSeconds",
+                table: "ImageMetadata",
+                type: "double",
+                nullable: true,
+                oldClrType: typeof(int),
+                oldType: "int",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<double>(
+                name: "DurationSeconds",
+                table: "ImageFolderDuration",
+                type: "double",
+                nullable: false,
+                oldClrType: typeof(int),
+                oldType: "int");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<int>(
+                name: "DurationSeconds",
+                table: "ImageMetadata",
+                type: "int",
+                nullable: true,
+                oldClrType: typeof(double),
+                oldType: "double",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<int>(
+                name: "DurationSeconds",
+                table: "ImageFolderDuration",
+                type: "int",
+                nullable: false,
+                oldClrType: typeof(double),
+                oldType: "double");
+        }
+    }
+}

ErsatzTV.Infrastructure.MySql/Migrations/TvContextModelSnapshot.cs

@@ -735,6 +735,26 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
                     b.ToTable("Genre");
                 });
 
+            modelBuilder.Entity("ErsatzTV.Core.Domain.ImageFolderDuration", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    b.Property<double>("DurationSeconds")
+                        .HasColumnType("double");
+
+                    b.Property<int>("LibraryFolderId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("LibraryFolderId")
+                        .IsUnique();
+
+                    b.ToTable("ImageFolderDuration", (string)null);
+                });
+
             modelBuilder.Entity("ErsatzTV.Core.Domain.ImageMetadata", b =>
                 {
                     b.Property<int>("Id")
@@ -747,8 +767,8 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
                     b.Property<DateTime>("DateUpdated")
                         .HasColumnType("datetime(6)");
 
-                    b.Property<int?>("DurationSeconds")
-                        .HasColumnType("int");
+                    b.Property<double?>("DurationSeconds")
+                        .HasColumnType("double");
 
                     b.Property<int>("ImageId")
                         .HasColumnType("int");
@@ -3428,6 +3448,16 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
                         .OnDelete(DeleteBehavior.Cascade);
                 });
 
+            modelBuilder.Entity("ErsatzTV.Core.Domain.ImageFolderDuration", b =>
+                {
+                    b.HasOne("ErsatzTV.Core.Domain.LibraryFolder", "LibraryFolder")
+                        .WithOne("ImageFolderDuration")
+                        .HasForeignKey("ErsatzTV.Core.Domain.ImageFolderDuration", "LibraryFolderId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.Navigation("LibraryFolder");
+                });
+
             modelBuilder.Entity("ErsatzTV.Core.Domain.ImageMetadata", b =>
                 {
                     b.HasOne("ErsatzTV.Core.Domain.Image", "Image")
@@ -4817,6 +4847,8 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
                 {
                     b.Navigation("Children");
 
+                    b.Navigation("ImageFolderDuration");
+
                     b.Navigation("MediaFiles");
                 });
 

ErsatzTV.Infrastructure.Sqlite/Migrations/20240217013847_Update_ImageFolderDuration.cs

@@ -0,0 +1,52 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ErsatzTV.Infrastructure.Sqlite.Migrations
+{
+    /// <inheritdoc />
+    public partial class Update_ImageFolderDuration : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<double>(
+                name: "DurationSeconds",
+                table: "ImageMetadata",
+                type: "REAL",
+                nullable: true,
+                oldClrType: typeof(int),
+                oldType: "INTEGER",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<double>(
+                name: "DurationSeconds",
+                table: "ImageFolderDuration",
+                type: "REAL",
+                nullable: false,
+                oldClrType: typeof(int),
+                oldType: "INTEGER");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<int>(
+                name: "DurationSeconds",
+                table: "ImageMetadata",
+                type: "INTEGER",
+                nullable: true,
+                oldClrType: typeof(double),
+                oldType: "REAL",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<int>(
+                name: "DurationSeconds",
+                table: "ImageFolderDuration",
+                type: "INTEGER",
+                nullable: false,
+                oldClrType: typeof(double),
+                oldType: "REAL");
+        }
+    }
+}

ErsatzTV.Infrastructure.Sqlite/Migrations/TvContextModelSnapshot.cs

@@ -739,8 +739,8 @@ namespace ErsatzTV.Infrastructure.Sqlite.Migrations
                         .ValueGeneratedOnAdd()
                         .HasColumnType("INTEGER");
 
-                    b.Property<int>("DurationSeconds")
-                        .HasColumnType("INTEGER");
+                    b.Property<double>("DurationSeconds")
+                        .HasColumnType("REAL");
 
                     b.Property<int>("LibraryFolderId")
                         .HasColumnType("INTEGER");
@@ -765,8 +765,8 @@ namespace ErsatzTV.Infrastructure.Sqlite.Migrations
                     b.Property<DateTime>("DateUpdated")
                         .HasColumnType("TEXT");
 
-                    b.Property<int?>("DurationSeconds")
-                        .HasColumnType("INTEGER");
+                    b.Property<double?>("DurationSeconds")
+                        .HasColumnType("REAL");
 
                     b.Property<int>("ImageId")
                         .HasColumnType("INTEGER");

ErsatzTV.Scanner/Core/Interfaces/Metadata/ILocalMetadataProvider.cs

@@ -13,7 +13,7 @@ public interface ILocalMetadataProvider
     Task<bool> RefreshSidecarMetadata(MusicVideo musicVideo, string nfoFileName);
     Task<bool> RefreshSidecarMetadata(OtherVideo otherVideo, string nfoFileName);
     Task<bool> RefreshTagMetadata(Song song);
-    Task<bool> RefreshTagMetadata(Image image, int? durationSeconds);
+    Task<bool> RefreshTagMetadata(Image image, double? durationSeconds);
     Task<bool> RefreshFallbackMetadata(Movie movie);
     Task<bool> RefreshFallbackMetadata(Episode episode);
     Task<bool> RefreshFallbackMetadata(Artist artist, string artistFolder);

ErsatzTV.Scanner/Core/Metadata/ImageFolderScanner.cs

@@ -147,7 +147,7 @@ public class ImageFolderScanner : LocalFolderScanner, IImageFolderScanner
                 
                 // walk up to get duration, if needed
                 LibraryFolder? currentFolder = knownFolder;
-                int? durationSeconds = currentFolder.ImageFolderDuration?.DurationSeconds;
+                double? durationSeconds = currentFolder.ImageFolderDuration?.DurationSeconds;
                 while (durationSeconds is null && currentFolder?.ParentId is not null)
                 {
                     Option<LibraryFolder> maybeParent = libraryPath.LibraryFolders
@@ -265,18 +265,24 @@ public class ImageFolderScanner : LocalFolderScanner, IImageFolderScanner
 
     private async Task<Either<BaseError, MediaItemScanResult<Image>>> UpdateMetadata(
         MediaItemScanResult<Image> result,
-        int? durationSeconds)
+        double? durationSeconds)
     {
         try
         {
             Image image = result.Item;
             string path = image.GetHeadVersion().MediaFiles.Head().Path;
+            bool shouldUpdate = true;
 
-            bool shouldUpdate = Optional(image.ImageMetadata).Flatten().HeadOrNone().Match(
-                m => m.MetadataKind == MetadataKind.Fallback ||
-                     m.DateUpdated != _localFileSystem.GetLastWriteTime(path) ||
-                     m.DurationSeconds != durationSeconds,
-                true);
+            foreach (ImageMetadata imageMetadata in Optional(image.ImageMetadata).Flatten().HeadOrNone())
+            {
+                bool durationsAreDifferent =
+                    imageMetadata.DurationSeconds.HasValue != durationSeconds.HasValue ||
+                    Math.Abs(imageMetadata.DurationSeconds.IfNone(1) - durationSeconds.IfNone(1)) > 0.01;
+
+                shouldUpdate = imageMetadata.MetadataKind == MetadataKind.Fallback ||
+                               imageMetadata.DateUpdated != _localFileSystem.GetLastWriteTime(path) ||
+                               durationsAreDifferent;
+            }
             
             if (shouldUpdate)
             {

ErsatzTV.Scanner/Core/Metadata/LocalMetadataProvider.cs

@@ -210,7 +210,7 @@ public class LocalMetadataProvider : ILocalMetadataProvider
         return await RefreshFallbackMetadata(song);
     }
 
-    public async Task<bool> RefreshTagMetadata(Image image, int? durationSeconds)
+    public async Task<bool> RefreshTagMetadata(Image image, double? durationSeconds)
     {
         Option<ImageMetadata> maybeMetadata = LoadImageMetadata(image, durationSeconds);
         foreach (ImageMetadata metadata in maybeMetadata)
@@ -406,7 +406,7 @@ public class LocalMetadataProvider : ILocalMetadataProvider
         }
     }
     
-    private Option<ImageMetadata> LoadImageMetadata(Image image, int? durationSeconds)
+    private Option<ImageMetadata> LoadImageMetadata(Image image, double? durationSeconds)
     {
         string path = image.GetHeadVersion().MediaFiles.Head().Path;
 

ErsatzTV/Pages/ImageBrowser.razor

@@ -93,7 +93,7 @@
         DialogResult result = await dialog.Result;
         if (!result.Canceled)
         {
-            int? duration = await Mediator.Send(new UpdateImageFolderDuration(item.LibraryFolderId, result.Data as int?), _cts.Token);
+            double? duration = await Mediator.Send(new UpdateImageFolderDuration(item.LibraryFolderId, result.Data as double?), _cts.Token);
             item.UpdateDuration(duration);
             await InvokeAsync(StateHasChanged);
         }

ErsatzTV/Shared/EditImageFolderDurationDialog.razor

@@ -7,15 +7,16 @@
                 Edit the image folder duration
             </MudText>
         </MudContainer>
-        <MudTextField Label="Duration" @bind-Value="@_imageDurationSeconds"
-                      For="@(() => _imageDurationSeconds)"
+        <MudNumericField T="double?" Label="Duration" @bind-Value="@_imageDurationSeconds"
                       Adornment="Adornment.End"
                       AdornmentText="seconds"
+                      Min="0.01"
+                      Step="0.01"
                       Immediate="true"/>
     </DialogContent>
     <DialogActions>
         <MudButton OnClick="Cancel" ButtonType="ButtonType.Reset">Cancel</MudButton>
-        <MudButton Color="Color.Primary" Variant="Variant.Filled" Disabled="@(_imageDurationSeconds == ImageFolderDuration)" OnClick="Submit">
+        <MudButton Color="Color.Primary" Variant="Variant.Filled" OnClick="Submit">
             Save Changes
         </MudButton>
     </DialogActions>
@@ -25,12 +26,12 @@
     private readonly CancellationTokenSource _cts = new();
 
     [Parameter]
-    public int? ImageFolderDuration { get; set; }
+    public double? ImageFolderDuration { get; set; }
 
     [CascadingParameter]
     MudDialogInstance MudDialog { get; set; }
 
-    private int? _imageDurationSeconds;
+    private double? _imageDurationSeconds;
 
     public void Dispose()
     {

ErsatzTV/ViewModels/ImageTreeItemViewModel.cs

@@ -6,7 +6,7 @@ namespace ErsatzTV.ViewModels;
 
 public class ImageTreeItemViewModel
 {
-    private string _imageCount;
+    private readonly string _imageCount;
     
     public ImageTreeItemViewModel(ImageFolderViewModel imageFolder)
     {
@@ -23,7 +23,7 @@ public class ImageTreeItemViewModel
             _ => string.Empty
         };
 
-        foreach (int durationSeconds in imageFolder.DurationSeconds)
+        foreach (double durationSeconds in imageFolder.DurationSeconds)
         {
             ImageFolderDuration = durationSeconds;
         }
@@ -42,24 +42,24 @@ public class ImageTreeItemViewModel
     public string Icon { get; }
     
     public int LibraryFolderId { get; }
-    public int? ImageFolderDuration { get; private set; }
+    public double? ImageFolderDuration { get; private set; }
     
     public bool CanExpand { get; }
     
     public S.HashSet<ImageTreeItemViewModel> TreeItems { get; }
 
-    public void UpdateDuration(int? imageFolderDuration)
+    public void UpdateDuration(double? imageFolderDuration)
     {
         ImageFolderDuration = imageFolderDuration;
 
         string duration = string.Empty;
         
-        foreach (int durationSeconds in Optional(imageFolderDuration))
+        foreach (double durationSeconds in Optional(imageFolderDuration))
         {
             duration = durationSeconds switch
             {
-                > 1 => $"{durationSeconds} seconds",
                 1 => "1 second",
+                > 0 => $"{durationSeconds:0.##} seconds",
                 _ => string.Empty
             };