Merge pull request #154 from MatMaul/mediaencoding

Port MediaEncoding and Api.Playback

1 files changed, 60 insertions, 0 deletions

diff --git a/MediaBrowser.MediaEncoding/Subtitles/TtmlWriter.cs b/MediaBrowser.MediaEncoding/Subtitles/TtmlWriter.cs
new file mode 100644
index 0000000000..c32005f897
--- /dev/null
+++ b/MediaBrowser.MediaEncoding/Subtitles/TtmlWriter.cs
@@ -0,0 +1,60 @@
+using System;
+using System.IO;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading;
+using MediaBrowser.Model.MediaInfo;
+
+namespace MediaBrowser.MediaEncoding.Subtitles
+{
+    public class TtmlWriter : ISubtitleWriter
+    {
+        public void Write(SubtitleTrackInfo info, Stream stream, CancellationToken cancellationToken)
+        {
+            // Example: https://github.com/zmalltalker/ttml2vtt/blob/master/data/sample.xml
+            // Parser example: https://github.com/mozilla/popcorn-js/blob/master/parsers/parserTTML/popcorn.parserTTML.js
+
+            using (var writer = new StreamWriter(stream, Encoding.UTF8, 1024, true))
+            {
+                writer.WriteLine("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
+                writer.WriteLine("<tt xmlns=\"http://www.w3.org/ns/ttml\" xmlns:tts=\"http://www.w3.org/2006/04/ttaf1#styling\" lang=\"no\">");
+
+                writer.WriteLine("<head>");
+                writer.WriteLine("<styling>");
+                writer.WriteLine("<style id=\"italic\" tts:fontStyle=\"italic\" />");
+                writer.WriteLine("<style id=\"left\" tts:textAlign=\"left\" />");
+                writer.WriteLine("<style id=\"center\" tts:textAlign=\"center\" />");
+                writer.WriteLine("<style id=\"right\" tts:textAlign=\"right\" />");
+                writer.WriteLine("</styling>");
+                writer.WriteLine("</head>");
+
+                writer.WriteLine("<body>");
+                writer.WriteLine("<div>");
+
+                foreach (var trackEvent in info.TrackEvents)
+                {
+                    var text = trackEvent.Text;
+
+                    text = Regex.Replace(text, @"\\n", "<br/>", RegexOptions.IgnoreCase);
+
+                    writer.WriteLine("<p begin=\"{0}\" dur=\"{1}\">{2}</p>",
+                        trackEvent.StartPositionTicks,
+                        (trackEvent.EndPositionTicks - trackEvent.StartPositionTicks),
+                        text);
+                }
+
+                writer.WriteLine("</div>");
+                writer.WriteLine("</body>");
+                
+                writer.WriteLine("</tt>");
+            }
+        }
+
+        private string FormatTime(long ticks)
+        {
+            var time = TimeSpan.FromTicks(ticks);
+
+            return string.Format(@"{0:hh\:mm\:ss\,fff}", time);
+        }
+    }
+}