implemented SSA Parser
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Text.RegularExpressions;
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namespace MediaBrowser.MediaEncoding.Subtitles
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{
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public class SsaParser : ISubtitleParser
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{
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private readonly CultureInfo _usCulture = new CultureInfo("en-US");
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public SubtitleTrackInfo Parse(Stream stream)
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{
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throw new NotImplementedException();
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var trackInfo = new SubtitleTrackInfo();
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var eventIndex = 1;
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using (var reader = new StreamReader(stream))
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{
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string line;
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while (reader.ReadLine() != "[Events]")
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{}
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var headers = ParseFieldHeaders(reader.ReadLine());
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while ((line = reader.ReadLine()) != null)
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{
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if (string.IsNullOrWhiteSpace(line))
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{
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continue;
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}
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if(line.StartsWith("["))
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break;
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if(string.IsNullOrEmpty(line))
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continue;
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var subEvent = new SubtitleTrackEvent { Id = eventIndex.ToString(_usCulture) };
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eventIndex++;
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var sections = line.Substring(10).Split(',');
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subEvent.StartPositionTicks = GetTicks(sections[headers["Start"]]);
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subEvent.EndPositionTicks = GetTicks(sections[headers["End"]]);
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subEvent.Text = string.Join(",", sections.Skip(headers["Text"]));
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subEvent.Text = Regex.Replace(subEvent.Text, "\\{(\\\\[\\w]+\\(?([\\w\\d]+,?)+\\)?)+\\}", string.Empty, RegexOptions.IgnoreCase);
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subEvent.Text = Regex.Replace(subEvent.Text, @"\\N", "<br />", RegexOptions.IgnoreCase);
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trackInfo.TrackEvents.Add(subEvent);
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}
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}
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return trackInfo;
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}
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long GetTicks(string time)
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{
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TimeSpan span;
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return TimeSpan.TryParseExact(time, @"h\:mm\:ss\.ff", _usCulture, out span)
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? span.Ticks: 0;
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}
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private Dictionary<string,int> ParseFieldHeaders(string line) {
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var fields = line.Substring(8).Split(',').Select(x=>x.Trim()).ToList();
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var result = new Dictionary<string, int> {
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{"Start", fields.IndexOf("Start")},
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{"End", fields.IndexOf("End")},
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{"Text", fields.IndexOf("Text")}
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};
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return result;
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}
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}
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}
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@ -50,6 +50,7 @@
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</Otherwise>
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</Choose>
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<ItemGroup>
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<Compile Include="MediaEncoding\Subtitles\SsaParserTests.cs" />
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<Compile Include="MediaEncoding\Subtitles\SrtParserTests.cs" />
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<Compile Include="Providers\MovieDbProviderTests.cs" />
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<Compile Include="Resolvers\MovieResolverTests.cs" />
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@ -83,6 +84,9 @@
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<None Include="app.config" />
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</ItemGroup>
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<ItemGroup>
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<None Include="MediaEncoding\Subtitles\TestSubtitles\data.ssa">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Include="MediaEncoding\Subtitles\TestSubtitles\unit.srt">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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59
MediaBrowser.Tests/MediaEncoding/Subtitles/SsaParserTests.cs
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59
MediaBrowser.Tests/MediaEncoding/Subtitles/SsaParserTests.cs
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using System;
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using System.Collections.Generic;
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using System.IO;
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using MediaBrowser.MediaEncoding.Subtitles;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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namespace MediaBrowser.Tests.MediaEncoding.Subtitles {
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[TestClass]
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public class SsaParserTests {
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[TestMethod]
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public void TestParse() {
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var expectedSubs =
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new SubtitleTrackInfo {
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TrackEvents = new List<SubtitleTrackEvent> {
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new SubtitleTrackEvent {
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Id = "1",
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StartPositionTicks = 24000000,
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EndPositionTicks = 72000000,
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Text =
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"Senator, we're <br />making our final <br />approach into Coruscant."
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},
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new SubtitleTrackEvent {
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Id = "2",
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StartPositionTicks = 97100000,
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EndPositionTicks = 133900000,
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Text =
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"Very good, Lieutenant."
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},
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new SubtitleTrackEvent {
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Id = "3",
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StartPositionTicks = 150400000,
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EndPositionTicks = 180400000,
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Text = "It's <br />a <br />trap!"
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}
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}
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};
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var sut = new SsaParser();
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var stream = File.OpenRead(@"MediaEncoding\Subtitles\TestSubtitles\data.ssa");
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var result = sut.Parse(stream);
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Assert.IsNotNull(result);
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Assert.AreEqual(expectedSubs.TrackEvents.Count,result.TrackEvents.Count);
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for (int i = 0; i < expectedSubs.TrackEvents.Count; i++)
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{
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Assert.AreEqual(expectedSubs.TrackEvents[i].Id, result.TrackEvents[i].Id);
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Assert.AreEqual(expectedSubs.TrackEvents[i].StartPositionTicks, result.TrackEvents[i].StartPositionTicks);
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Assert.AreEqual(expectedSubs.TrackEvents[i].EndPositionTicks, result.TrackEvents[i].EndPositionTicks);
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Assert.AreEqual(expectedSubs.TrackEvents[i].Text, result.TrackEvents[i].Text);
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}
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}
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}
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}
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@ -0,0 +1,23 @@
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[Script Info]
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Title: Testing subtitles for the SSA Format
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[V4 Styles]
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Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, TertiaryColour, BackColour, Bold, Italic, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, AlphaLevel, Encoding
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Style: Default,Arial,20,65535,65535,65535,-2147483640,-1,0,1,3,0,2,30,30,30,0,0
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Style: Titre_episode,Akbar,140,15724527,65535,65535,986895,-1,0,1,1,0,3,30,30,30,0,0
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Style: Wolf main,Wolf_Rain,56,15724527,15724527,15724527,4144959,0,0,1,1,2,2,5,5,30,0,0
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[Events]
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Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
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Dialogue: 0,0:00:02.40,0:00:07.20,Default,,0000,0000,0000,,Senator, {\kf89}we're \Nmaking our final \napproach into Coruscant.
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Dialogue: 0,0:00:09.71,0:00:13.39,Default,,0000,0000,0000,,{\pos(400,570)}Very good, Lieutenant.
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Dialogue: 0,0:00:15.04,0:00:18.04,Default,,0000,0000,0000,,It's \Na \ntrap!
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[Pictures]
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This section will be ignored
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[Fonts]
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This section will be ignored
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