implemented SRT Parser

2 files changed, 152 insertions, 0 deletions

diff --git a/MediaBrowser.Tests/MediaEncoding/Subtitles/SrtParserTests.cs b/MediaBrowser.Tests/MediaEncoding/Subtitles/SrtParserTests.cs
new file mode 100644
index 000000000..0d86fbdcd
--- /dev/null
+++ b/MediaBrowser.Tests/MediaEncoding/Subtitles/SrtParserTests.cs
@@ -0,0 +1,108 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using MediaBrowser.MediaEncoding.Subtitles;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace MediaBrowser.Tests.MediaEncoding.Subtitles {
+
+    [TestClass]
+    public class SrtParserTests {
+
+        [TestMethod]
+        public void TestParse() {
+
+            var expectedSubs =
+                new SubtitleTrackInfo {
+                                          TrackEvents = new List<SubtitleTrackEvent> {
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "1",
+                                                                                                                    StartPositionTicks = 24000000,
+                                                                                                                    EndPositionTicks = 52000000,
+                                                                                                                    Text =
+                                                                                                                        "[Background Music Playing]"
+                                                                                                                },
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "2",
+                                                                                                                    StartPositionTicks = 157120000,
+                                                                                                                    EndPositionTicks = 173990000,
+                                                                                                                    Text =
+                                                                                                                        "Oh my god, Watch out!<br />It's coming!!"
+                                                                                                                },
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "3",
+                                                                                                                    StartPositionTicks = 257120000,
+                                                                                                                    EndPositionTicks = 303990000,
+                                                                                                                    Text = "[Bird noises]"
+                                                                                                                },
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "4",
+                                                                                                                    StartPositionTicks = 310000000,
+                                                                                                                    EndPositionTicks = 319990000,
+                                                                                                                    Text =
+                                                                                                                        "This text is <font color=\"red\">RED</font> and has not been positioned."
+                                                                                                                },
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "5",
+                                                                                                                    StartPositionTicks = 320000000,
+                                                                                                                    EndPositionTicks = 329990000,
+                                                                                                                    Text =
+                                                                                                                        "This is a<br />new line, as is<br />this"
+                                                                                                                },
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "6",
+                                                                                                                    StartPositionTicks = 330000000,
+                                                                                                                    EndPositionTicks = 339990000,
+                                                                                                                    Text =
+                                                                                                                        "This contains nested <b>bold, <i>italic, <u>underline</u> and <s>strike-through</s></u></i></b> HTML tags"
+                                                                                                                },
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "7",
+                                                                                                                    StartPositionTicks = 340000000,
+                                                                                                                    EndPositionTicks = 349990000,
+                                                                                                                    Text =
+                                                                                                                        "Unclosed but <b>supported HTML tags are left in,  SSA italics aren't"
+                                                                                                                },
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "8",
+                                                                                                                    StartPositionTicks = 350000000,
+                                                                                                                    EndPositionTicks = 359990000,
+                                                                                                                    Text =
+                                                                                                                        "&lt;ggg&gt;Unsupported&lt;/ggg&gt; HTML tags are escaped and left in, even if &lt;hhh&gt;not closed."
+                                                                                                                },
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "9",
+                                                                                                                    StartPositionTicks = 360000000,
+                                                                                                                    EndPositionTicks = 369990000,
+                                                                                                                    Text =
+                                                                                                                        "Multiple SSA tags are stripped"
+                                                                                                                },
+                                                                                         new SubtitleTrackEvent {
+                                                                                                                    Id = "10",
+                                                                                                                    StartPositionTicks = 370000000,
+                                                                                                                    EndPositionTicks = 379990000,
+                                                                                                                    Text =
+                                                                                                                        "Greater than (&lt;) and less than (&gt;) are shown"
+                                                                                                                }
+                                                                                     }
+                                      };
+
+            var sut = new SrtParser();
+
+            var stream = File.OpenRead(@"MediaEncoding\Subtitles\TestSubtitles\unit.srt");
+
+            var result = sut.Parse(stream);
+
+            Assert.IsNotNull(result);
+            Assert.AreEqual(expectedSubs.TrackEvents.Count,result.TrackEvents.Count);
+            for (int i = 0; i < expectedSubs.TrackEvents.Count; i++)
+            {
+                Assert.AreEqual(expectedSubs.TrackEvents[i].Id, result.TrackEvents[i].Id);
+                Assert.AreEqual(expectedSubs.TrackEvents[i].StartPositionTicks, result.TrackEvents[i].StartPositionTicks);
+                Assert.AreEqual(expectedSubs.TrackEvents[i].EndPositionTicks, result.TrackEvents[i].EndPositionTicks);
+                Assert.AreEqual(expectedSubs.TrackEvents[i].Text, result.TrackEvents[i].Text);
+            }
+
+        }
+    }
+}
\ No newline at end of file
diff --git a/MediaBrowser.Tests/MediaEncoding/Subtitles/TestSubtitles/unit.srt b/MediaBrowser.Tests/MediaEncoding/Subtitles/TestSubtitles/unit.srt
new file mode 100644
index 000000000..5f6e5636e
--- /dev/null
+++ b/MediaBrowser.Tests/MediaEncoding/Subtitles/TestSubtitles/unit.srt
@@ -0,0 +1,44 @@
+
+
+1
+00:00:02.400 --> 00:00:05.200
+[Background Music Playing]
+
+2
+00:00:15,712 --> 00:00:17,399 X1:000 X2:000 Y1:050 Y2:100
+Oh my god, Watch out!
+It's coming!!
+
+3
+00:00:25,712 --> 00:00:30,399
+[Bird noises]
+
+4
+00:00:31,000 --> 00:00:31,999
+This text is <font color="red">RED</font> and has not been {\pos(142,120)}positioned.
+
+5
+00:00:32,000 --> 00:00:32,999
+This is a\nnew line, as is\Nthis
+
+6
+00:00:33,000 --> 00:00:33,999
+This contains nested <b>bold, <i>italic, <u>underline</u> and <s>strike-through</s></u></i></b> HTML tags
+
+7
+00:00:34,000 --> 00:00:34,999
+Unclosed but <b>supported HTML tags are left in, {\i1} SSA italics aren't
+
+8
+00:00:35,000 --> 00:00:35,999
+<ggg>Unsupported</ggg> HTML tags are escaped and left in, even if <hhh>not closed.
+
+9
+00:00:36,000 --> 00:00:36,999
+Multiple {\pos(142,120)\b1}SSA tags are stripped
+
+10
+00:00:37,000 --> 00:00:37,999
+Greater than (<) and less than (>) are shown
+
+