Match and mux in dropped external subtitles

Drag in subtitle files alongside .mkv files and they're matched to the right video by episode code (S04E06, zero-padding and separator insensitive, plus 4x06 as a fallback) and muxed in as extra subtitle tracks. Any subtitle format mkvmerge accepts is recognized: SRT, (S)SA, VobSub, WebVTT, PGS/SUP, USF, SAMI, TTML/DFXP, STL, Kate. Matching works regardless of drop order — subtitles dropped before their video are held pending until a matching video shows up, and vice versa. Language, forced, and SDH flags are guessed from common filename tokens (e.g. "eng", "forced", "sdh") to set the muxed track's language/name/flags; unmatched subtitles are reported in the status bar.
2026-07-08 10:37:56 +02:00
parent 304d9ad047
commit c7c125d40b
9 changed files with 511 additions and 21 deletions
@@ -0,0 +1,58 @@
+using System.ComponentModel;
+using System.IO;
+using System.Runtime.CompilerServices;
+
+namespace Futonizer.Models;
+
+/// <summary>
+/// Represents one external subtitle file that was drag-and-dropped in and
+/// matched to a <see cref="QueuedFileItem"/> by episode code (e.g. S04E06),
+/// to be muxed in as an additional subtitle track when the file is processed.
+/// </summary>
+public class ExternalSubtitleTrack : INotifyPropertyChanged
+{
+    private bool _isDefault;
+
+    public string FilePath { get; }
+    public string FileName => Path.GetFileName(FilePath);
+
+    /// <summary>Uppercased extension without the dot, e.g. "SRT", "ASS", "SUP".</summary>
+    public string FormatDisplay => Path.GetExtension(FilePath).TrimStart('.').ToUpperInvariant();
+
+    /// <summary>ISO 639-2 language code detected from the filename, or "und" if unknown.</summary>
+    public string Language { get; init; } = "und";
+
+    /// <summary>Track name to embed in the output file; may be empty.</summary>
+    public string TrackName { get; init; } = string.Empty;
+
+    public bool Forced { get; init; }
+    public bool HearingImpaired { get; init; }
+
+    /// <summary>
+    /// Whether this is the subtitle track flagged default in the output.
+    /// Exactly one external subtitle per file should have this set at a time.
+    /// </summary>
+    public bool IsDefault
+    {
+        get => _isDefault;
+        set
+        {
+            if (_isDefault == value) return;
+            _isDefault = value;
+            OnPropertyChanged();
+        }
+    }
+
+    /// <summary>Short "FORMAT · LANG" label shown as a chip in the UI.</summary>
+    public string LanguageDisplay => $"{FormatDisplay} · {(string.Equals(Language, "und", StringComparison.OrdinalIgnoreCase) ? "UND" : Language.ToUpperInvariant())}";
+
+    public ExternalSubtitleTrack(string filePath)
+    {
+        FilePath = filePath;
+    }
+
+    public event PropertyChangedEventHandler? PropertyChanged;
+
+    private void OnPropertyChanged([CallerMemberName] string? name = null)
+        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
+}