Add JsonWriter back

2 files changed, 64 insertions, 3 deletions

diff --git a/MediaBrowser.MediaEncoding/Subtitles/JsonWriter.cs b/MediaBrowser.MediaEncoding/Subtitles/JsonWriter.cs
new file mode 100644
index 0000000000..0e40181016
--- /dev/null
+++ b/MediaBrowser.MediaEncoding/Subtitles/JsonWriter.cs
@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Text;
+using System.Text.Json;
+using Nikse.SubtitleEdit.Core.Common;
+using Nikse.SubtitleEdit.Core.SubtitleFormats;
+
+namespace MediaBrowser.MediaEncoding.Subtitles;
+
+/// <summary>
+/// JSON subtitle writer.
+/// </summary>
+public class JsonWriter : SubtitleFormat
+{
+    /// <inheritdoc />
+    public override string Extension => ".json";
+
+    /// <inheritdoc />
+    public override string Name => "JSON Jellyfin";
+
+    /// <inheritdoc />
+    public override string ToText(Subtitle subtitle, string title)
+    {
+        using var ms = new MemoryStream();
+        using (var writer = new Utf8JsonWriter(ms))
+        {
+            var trackevents = subtitle.Paragraphs;
+            writer.WriteStartObject();
+            writer.WriteStartArray("TrackEvents");
+
+            for (int i = 0; i < trackevents.Count; i++)
+            {
+                var current = trackevents[i];
+                writer.WriteStartObject();
+
+                writer.WriteString("Id", current.Number.ToString(CultureInfo.InvariantCulture));
+                writer.WriteString("Text", current.Text);
+                writer.WriteNumber("StartPositionTicks", current.StartTime.TimeSpan.Ticks);
+                writer.WriteNumber("EndPositionTicks", current.EndTime.TimeSpan.Ticks);
+
+                writer.WriteEndObject();
+            }
+
+            writer.WriteEndArray();
+            writer.WriteEndObject();
+
+            writer.Flush();
+        }
+
+        return Encoding.UTF8.GetString(ms.GetBuffer(), 0, (int)ms.Length);
+    }
+
+    /// <inheritdoc />
+    public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
+        => throw new NotImplementedException();
+}
diff --git a/MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs b/MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs
index 0192aa57f2..e8bc0f1ffb 100644
--- a/MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs
+++ b/MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs
@@ -269,10 +269,12 @@ namespace MediaBrowser.MediaEncoding.Subtitles
 
             if (string.Equals(format, "json", StringComparison.OrdinalIgnoreCase))
             {
-                throw new NotImplementedException();
+                value = new JsonWriter();
+                return true;
             }
 
-            if (string.Equals(format, SubtitleFormat.SRT, StringComparison.OrdinalIgnoreCase) || string.Equals(format, SubtitleFormat.SUBRIP, StringComparison.OrdinalIgnoreCase))
+            if (string.Equals(format, SubtitleFormat.SRT, StringComparison.OrdinalIgnoreCase)
+                || string.Equals(format, SubtitleFormat.SUBRIP, StringComparison.OrdinalIgnoreCase))
             {
                 value = new SubRip();
                 return true;
@@ -284,7 +286,8 @@ namespace MediaBrowser.MediaEncoding.Subtitles
                 return true;
             }
 
-            if (string.Equals(format, SubtitleFormat.VTT, StringComparison.OrdinalIgnoreCase) || string.Equals(format, SubtitleFormat.WEBVTT, StringComparison.OrdinalIgnoreCase))
+            if (string.Equals(format, SubtitleFormat.VTT, StringComparison.OrdinalIgnoreCase)
+                || string.Equals(format, SubtitleFormat.WEBVTT, StringComparison.OrdinalIgnoreCase))
             {
                 value = new WebVTT();
                 return true;