implemented SRT Parser
This commit is contained in:
Luis Miguel Almánzar
parent
4e710ec0a4
commit
f2237b858a
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@ -1,17 +1,61 @@
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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 SrtParser : ISubtitleParser
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{
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public SubtitleTrackInfo Parse(Stream stream)
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{
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throw new NotImplementedException();
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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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var trackInfo = new SubtitleTrackInfo();
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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 ((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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var subEvent = new SubtitleTrackEvent {Id = line};
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line = reader.ReadLine();
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var time = Regex.Split(line, @"[\t ]*-->[\t ]*");
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subEvent.StartPositionTicks = GetTicks(time[0]);
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var endTime = time[1];
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var idx = endTime.IndexOf(" ", StringComparison.Ordinal);
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if (idx > 0)
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endTime = endTime.Substring(0, idx);
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subEvent.EndPositionTicks = GetTicks(endTime);
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var multiline = new List<string>();
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while ((line = reader.ReadLine()) != null)
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{
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if (string.IsNullOrEmpty(line))
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{
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break;
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}
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multiline.Add(line);
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}
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subEvent.Text = string.Join(@"\N", multiline);
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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, "<", "<", RegexOptions.IgnoreCase);
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subEvent.Text = Regex.Replace(subEvent.Text, ">", ">", RegexOptions.IgnoreCase);
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subEvent.Text = Regex.Replace(subEvent.Text, "<(\\/?(font|b|u|i|s))((\\s+(\\w|\\w[\\w\\-]*\\w)(\\s*=\\s*(?:\\\".*?\\\"|'.*?'|[^'\\\">\\s]+))?)+\\s*|\\s*)(\\/?)>", "<$1$3$7>", 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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TimeSpan span;
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return TimeSpan.TryParseExact(time, @"hh\:mm\:ss\.fff", _usCulture, out span)
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? span.Ticks
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: (TimeSpan.TryParseExact(time, @"hh\:mm\:ss\,fff", _usCulture, out span)
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? span.Ticks : 0);
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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\SrtParserTests.cs" />
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<Compile Include="Providers\MovieDbProviderTests.cs" />
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<Compile Include="Resolvers\MovieResolverTests.cs" />
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<Compile Include="Resolvers\TvUtilTests.cs" />
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@ -61,6 +62,10 @@
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<Project>{17e1f4e6-8abd-4fe5-9ecf-43d4b6087ba2}</Project>
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<Name>MediaBrowser.Controller</Name>
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</ProjectReference>
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<ProjectReference Include="..\MediaBrowser.MediaEncoding\MediaBrowser.MediaEncoding.csproj">
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<Project>{0BD82FA6-EB8A-4452-8AF5-74F9C3849451}</Project>
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<Name>MediaBrowser.MediaEncoding</Name>
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</ProjectReference>
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<ProjectReference Include="..\MediaBrowser.Model\MediaBrowser.Model.csproj">
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<Project>{7eeeb4bb-f3e8-48fc-b4c5-70f0fff8329b}</Project>
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<Name>MediaBrowser.Model</Name>
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@ -77,6 +82,11 @@
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<ItemGroup>
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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\unit.srt">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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</ItemGroup>
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<Choose>
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<When Condition="'$(VisualStudioVersion)' == '10.0' And '$(IsCodedUITest)' == 'True'">
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<ItemGroup>
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108
MediaBrowser.Tests/MediaEncoding/Subtitles/SrtParserTests.cs
Normal file
108
MediaBrowser.Tests/MediaEncoding/Subtitles/SrtParserTests.cs
Normal file
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@ -0,0 +1,108 @@
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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 SrtParserTests {
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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 = 52000000,
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Text =
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"[Background Music Playing]"
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},
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new SubtitleTrackEvent {
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Id = "2",
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StartPositionTicks = 157120000,
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EndPositionTicks = 173990000,
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Text =
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"Oh my god, Watch out!<br />It's coming!!"
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},
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new SubtitleTrackEvent {
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Id = "3",
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StartPositionTicks = 257120000,
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EndPositionTicks = 303990000,
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Text = "[Bird noises]"
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},
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new SubtitleTrackEvent {
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Id = "4",
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StartPositionTicks = 310000000,
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EndPositionTicks = 319990000,
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Text =
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"This text is <font color=\"red\">RED</font> and has not been positioned."
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},
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new SubtitleTrackEvent {
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Id = "5",
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StartPositionTicks = 320000000,
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EndPositionTicks = 329990000,
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Text =
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"This is a<br />new line, as is<br />this"
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},
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new SubtitleTrackEvent {
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Id = "6",
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StartPositionTicks = 330000000,
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EndPositionTicks = 339990000,
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Text =
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"This contains nested <b>bold, <i>italic, <u>underline</u> and <s>strike-through</s></u></i></b> HTML tags"
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},
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new SubtitleTrackEvent {
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Id = "7",
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StartPositionTicks = 340000000,
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EndPositionTicks = 349990000,
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Text =
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"Unclosed but <b>supported HTML tags are left in, SSA italics aren't"
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},
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new SubtitleTrackEvent {
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Id = "8",
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StartPositionTicks = 350000000,
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EndPositionTicks = 359990000,
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Text =
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"<ggg>Unsupported</ggg> HTML tags are escaped and left in, even if <hhh>not closed."
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},
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new SubtitleTrackEvent {
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Id = "9",
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StartPositionTicks = 360000000,
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EndPositionTicks = 369990000,
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Text =
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"Multiple SSA tags are stripped"
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},
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new SubtitleTrackEvent {
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Id = "10",
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StartPositionTicks = 370000000,
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EndPositionTicks = 379990000,
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Text =
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"Greater than (<) and less than (>) are shown"
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}
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}
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};
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var sut = new SrtParser();
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var stream = File.OpenRead(@"MediaEncoding\Subtitles\TestSubtitles\unit.srt");
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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 +1,44 @@
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1
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00:00:02.400 --> 00:00:05.200
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[Background Music Playing]
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2
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00:00:15,712 --> 00:00:17,399 X1:000 X2:000 Y1:050 Y2:100
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Oh my god, Watch out!
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It's coming!!
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3
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00:00:25,712 --> 00:00:30,399
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[Bird noises]
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4
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00:00:31,000 --> 00:00:31,999
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This text is <font color="red">RED</font> and has not been {\pos(142,120)}positioned.
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5
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00:00:32,000 --> 00:00:32,999
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This is a\nnew line, as is\Nthis
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6
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00:00:33,000 --> 00:00:33,999
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This contains nested <b>bold, <i>italic, <u>underline</u> and <s>strike-through</s></u></i></b> HTML tags
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7
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00:00:34,000 --> 00:00:34,999
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Unclosed but <b>supported HTML tags are left in, {\i1} SSA italics aren't
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8
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00:00:35,000 --> 00:00:35,999
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<ggg>Unsupported</ggg> HTML tags are escaped and left in, even if <hhh>not closed.
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9
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00:00:36,000 --> 00:00:36,999
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Multiple {\pos(142,120)\b1}SSA tags are stripped
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10
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00:00:37,000 --> 00:00:37,999
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Greater than (<) and less than (>) are shown
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