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Adapt LrcLyricParser to new LrcParser version (#14263)

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Max Rumpf 2025-06-25 00:59:09 +02:00 • committed by GitHub
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commit 9b8c12d433
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4 changed files with 59 additions and 36 deletions
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4
Directory.Packages.props
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@ -24,7 +24,7 @@
<PackageVersion Include="Ignore" Version="0.2.1" />
<PackageVersion Include="Jellyfin.XmlTv" Version="10.8.0" />
<PackageVersion Include="libse" Version="4.0.12" />
<PackageVersion Include="LrcParser" Version="2025.228.1" />
<PackageVersion Include="LrcParser" Version="2025.623.0" />
<PackageVersion Include="MetaBrainz.MusicBrainz" Version="6.1.0" />
<PackageVersion Include="Microsoft.AspNetCore.Authorization" Version="9.0.6" />
<PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.6" />
@ -92,4 +92,4 @@
<PackageVersion Include="Xunit.SkippableFact" Version="1.5.23" />
<PackageVersion Include="xunit" Version="2.9.3" />
</ItemGroup>
</Project>
</Project>

13
MediaBrowser.Model/Lyrics/LyricLineCue.cs
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@ -8,21 +8,28 @@ public class LyricLineCue
/// <summary>
/// Initializes a new instance of the <see cref="LyricLineCue"/> class.
/// </summary>
/// <param name="position">The start of the character index of the lyric.</param>
/// <param name="position">The start character index of the cue.</param>
/// <param name="endPosition">The end character index of the cue.</param>
/// <param name="start">The start of the timestamp the lyric is synced to in ticks.</param>
/// <param name="end">The end of the timestamp the lyric is synced to in ticks.</param>
public LyricLineCue(int position, long start, long? end)
public LyricLineCue(int position, int endPosition, long start, long? end)
{
Position = position;
EndPosition = endPosition;
Start = start;
End = end;
}
/// <summary>
/// Gets the character index of the lyric.
/// Gets the start character index of the cue.
/// </summary>
public int Position { get; }
/// <summary>
/// Gets the end character index of the cue.
/// </summary>
public int EndPosition { get; }
/// <summary>
/// Gets the timestamp the lyric is synced to in ticks.
/// </summary>

62
MediaBrowser.Providers/Lyric/LrcLyricParser.cs
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@ -2,6 +2,7 @@ using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using Jellyfin.Extensions;
using LrcParser.Model;
@ -66,47 +67,56 @@ public partial class LrcLyricParser : ILyricParser
}
List<LyricLine> lyricList = [];
for (var l = 0; l < sortedLyricData.Count; l++)
for (var lineIndex = 0; lineIndex < sortedLyricData.Count; lineIndex++)
{
var cues = new List<LyricLineCue>();
var lyric = sortedLyricData[l];
var lyric = sortedLyricData[lineIndex];
if (lyric.TimeTags.Count != 0)
// Extract cues from time tags
var cues = new List<LyricLineCue>();
if (lyric.TimeTags.Count > 0)
{
var keys = lyric.TimeTags.Keys.ToList();
int current = 0, next = 1;
while (next < keys.Count)
for (var tagIndex = 0; tagIndex < keys.Count - 1; tagIndex++)
{
var currentKey = keys[current];
var currentKey = keys[tagIndex];
var nextKey = keys[tagIndex + 1];
var currentPos = currentKey.State == IndexState.End ? currentKey.Index + 1 : currentKey.Index;
var nextPos = nextKey.State == IndexState.End ? nextKey.Index + 1 : nextKey.Index;
var currentMs = lyric.TimeTags[currentKey] ?? 0;
var nextMs = lyric.TimeTags[keys[next]] ?? 0;
cues.Add(new LyricLineCue(
position: Math.Max(currentKey.Index, 0),
start: TimeSpan.FromMilliseconds(currentMs).Ticks,
end: TimeSpan.FromMilliseconds(nextMs).Ticks));
current++;
next++;
var nextMs = lyric.TimeTags[keys[tagIndex + 1]] ?? 0;
var currentSlice = lyric.Text[currentPos..nextPos];
var currentSliceTrimmed = currentSlice.Trim();
if (currentSliceTrimmed.Length > 0)
{
cues.Add(new LyricLineCue(
position: currentPos,
endPosition: nextPos,
start: TimeSpan.FromMilliseconds(currentMs).Ticks,
end: TimeSpan.FromMilliseconds(nextMs).Ticks));
}
}
var lastKey = keys[current];
var lastKey = keys[^1];
var lastPos = lastKey.State == IndexState.End ? lastKey.Index + 1 : lastKey.Index;
var lastMs = lyric.TimeTags[lastKey] ?? 0;
var lastSlice = lyric.Text[lastPos..];
var lastSliceTrimmed = lastSlice.Trim();
cues.Add(new LyricLineCue(
position: Math.Max(lastKey.Index, 0),
start: TimeSpan.FromMilliseconds(lastMs).Ticks,
end: l + 1 < sortedLyricData.Count ? TimeSpan.FromMilliseconds(sortedLyricData[l + 1].StartTime).Ticks : null));
if (lastSliceTrimmed.Length > 0)
{
cues.Add(new LyricLineCue(
position: lastPos,
endPosition: lyric.Text.Length,
start: TimeSpan.FromMilliseconds(lastMs).Ticks,
end: lineIndex + 1 < sortedLyricData.Count ? TimeSpan.FromMilliseconds(sortedLyricData[lineIndex + 1].StartTime).Ticks : null));
}
}
long lyricStartTicks = TimeSpan.FromMilliseconds(lyric.StartTime).Ticks;
lyricList.Add(new LyricLine(WhitespaceRegex().Replace(lyric.Text.Trim(), " "), lyricStartTicks, cues));
lyricList.Add(new LyricLine(lyric.Text, lyricStartTicks, cues));
}
return new LyricDto { Lyrics = lyricList };
}
// Replacement is required until https://github.com/karaoke-dev/LrcParser/issues/83 is resolved.
[GeneratedRegex(@"\s+")]
private static partial Regex WhitespaceRegex();
}

16
tests/Jellyfin.Providers.Tests/Lyrics/LrcLyricParserTests.cs
View file

@ -20,22 +20,28 @@ public static class LrcLyricParserTests
var line1 = parsed.Lyrics[0];
Assert.Equal("Every night that goes between", line1.Text);
Assert.NotNull(line1.Cues);
Assert.Equal(9, line1.Cues.Count);
Assert.Equal(5, line1.Cues.Count);
Assert.Equal(68400000, line1.Cues[0].Start);
Assert.Equal(72000000, line1.Cues[0].End);
Assert.Equal(0, line1.Cues[0].Position);
Assert.Equal(5, line1.Cues[0].EndPosition);
Assert.Equal(6, line1.Cues[1].Position);
Assert.Equal(11, line1.Cues[1].EndPosition);
Assert.Equal(12, line1.Cues[2].Position);
var line5 = parsed.Lyrics[4];
Assert.Equal("Every night you do not come", line5.Text);
Assert.NotNull(line5.Cues);
Assert.Equal(11, line5.Cues.Count);
Assert.Equal(377300000, line5.Cues[5].Start);
Assert.Equal(380000000, line5.Cues[5].End);
Assert.Equal(6, line5.Cues.Count);
Assert.Equal(375200000, line5.Cues[2].Start);
Assert.Equal(377300000, line5.Cues[2].End);
var lastLine = parsed.Lyrics[^1];
Assert.Equal("I have always been a storm", lastLine.Text);
Assert.NotNull(lastLine.Cues);
Assert.Equal(11, lastLine.Cues.Count);
Assert.Equal(6, lastLine.Cues.Count);
Assert.Equal(2358000000, lastLine.Cues[^1].Start);
Assert.Equal(26, lastLine.Cues[^1].EndPosition);
Assert.Null(lastLine.Cues[^1].End);
}
}