add VTT writer implementation

1 files changed, 12 insertions, 2 deletions

diff --git a/MediaBrowser.MediaEncoding/Subtitles/VttWriter.cs b/MediaBrowser.MediaEncoding/Subtitles/VttWriter.cs
index a52043bf1..dc750fb6b 100644
--- a/MediaBrowser.MediaEncoding/Subtitles/VttWriter.cs
+++ b/MediaBrowser.MediaEncoding/Subtitles/VttWriter.cs
@@ -9,8 +9,18 @@ namespace MediaBrowser.MediaEncoding.Subtitles
 {
     public class VttWriter : ISubtitleWriter
     {
-        public void Write(SubtitleTrackInfo info, Stream stream)
-        {
+        public void Write(SubtitleTrackInfo info, Stream stream) {
+            using (var writer = new StreamWriter(stream))
+            {
+                writer.WriteLine("WEBVTT");
+                writer.WriteLine(string.Empty);
+                foreach (var trackEvent in info.TrackEvents)
+                {
+                    writer.WriteLine(@"{0:hh\:mm\:ss\.fff} --> {1:hh\:mm\:ss\.fff}", TimeSpan.FromTicks(trackEvent.StartPositionTicks), TimeSpan.FromTicks(trackEvent.EndPositionTicks));
+                    writer.WriteLine(trackEvent.Text);
+                    writer.WriteLine(string.Empty);
+                }
+            }
         }
     }
 }