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Audio player support lyric (.lrc) #1506
Use lyric parser from https://github.com/lemutec/LyricStudio
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171
QuickLook.Plugin/QuickLook.Plugin.VideoViewer/LyricTrack/LrcHelper.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| // Copyright © 2024 ema | ||
| // | ||
| // This file is part of QuickLook program. | ||
| // | ||
| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Diagnostics; | ||
| using System.Linq; | ||
| using System.Text.RegularExpressions; | ||
|
|
||
| namespace QuickLook.Plugin.VideoViewer.LyricTrack; | ||
|
|
||
| /// <summary> | ||
| /// https://github.com/lemutec/LyricStudio | ||
| /// </summary> | ||
| public static class LrcHelper | ||
| { | ||
| public static IEnumerable<LrcLine> ParseText(string text) | ||
| { | ||
| List<LrcLine> lrcList = []; | ||
|
|
||
| if (string.IsNullOrWhiteSpace(text)) | ||
| { | ||
| return []; | ||
| } | ||
|
|
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| string[] lines = new Regex(@"\r?\n").Split(text); | ||
|
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||
| // The text does not contain timecode | ||
| if (!new Regex(@"\[\d+\:\d+\.\d+\]").IsMatch(text)) | ||
| { | ||
| foreach (string line in lines) | ||
| { | ||
| if (new Regex(@"\[\w+\:.*\]").IsMatch(line)) | ||
| { | ||
| lrcList.Add(new LrcLine(null, line.Trim('[', ']'))); | ||
| } | ||
| else | ||
| { | ||
| lrcList.Add(new LrcLine(0, line)); | ||
| } | ||
| } | ||
| } | ||
| // The text contain timecode | ||
| else | ||
| { | ||
| bool multiLrc = false; | ||
|
|
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| int lineNumber = 1; | ||
| try | ||
| { | ||
| foreach (string line in lines) | ||
| { | ||
| if (string.IsNullOrWhiteSpace(line)) | ||
| { | ||
| lineNumber++; | ||
| continue; | ||
| } | ||
|
|
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| MatchCollection matches = new Regex(@"\[\d+\:\d+\.\d+\]").Matches(line); | ||
|
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||
| // Such as [00:00.000][00:01.000] | ||
| if (matches.Count > 1) | ||
| { | ||
| string lrc = new Regex(@"(?<=\])[^\]]+$").Match(line).ToString(); | ||
|
|
||
| lrcList.AddRange(matches.OfType<Match>().Select(match => new LrcLine(ParseTimeSpan(match.ToString().Trim('[', ']')), lrc))); | ||
| multiLrc = true; | ||
| } | ||
| // Normal line like [00:00.000] | ||
| else if (matches.Count == 1) | ||
| { | ||
| lrcList.Add(LrcLine.Parse(line)); | ||
| } | ||
| // Info line | ||
| else if (new Regex(@"\[\w+\:.*\]").IsMatch(line)) | ||
| { | ||
| lrcList.Add(new LrcLine(null, new Regex(@"\[\w+\:.*\]").Match(line).ToString().Trim('[', ']'))); | ||
| } | ||
| // Not an empty line but no any timecode was found, so add an empty timecode | ||
| else | ||
| { | ||
| lrcList.Add(new LrcLine(TimeSpan.Zero, line)); | ||
| } | ||
| lineNumber++; | ||
| } | ||
| // Multi timecode and sort it auto | ||
| if (multiLrc) | ||
| { | ||
| lrcList = [.. lrcList.OrderBy(x => x.LrcTime)]; | ||
| } | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| // Some error occurred in {{ lineNumber }} | ||
| Debug.WriteLine(e); | ||
| } | ||
| } | ||
|
|
||
| return lrcList; | ||
| } | ||
|
|
||
| public static LrcLine GetNearestLrc(IEnumerable<LrcLine> lrcList, TimeSpan time) | ||
| { | ||
| LrcLine line = lrcList | ||
| .Where(x => x.LrcTime != null && x.LrcTime <= time) | ||
| .OrderByDescending(x => x.LrcTime) | ||
| .FirstOrDefault(); | ||
|
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| return line; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Try to resolve the timestamp string to TimeSpan, see | ||
| /// <seealso cref="ParseTimeSpan(string)"/> | ||
| /// </summary> | ||
| public static bool TryParseTimeSpan(string s, out TimeSpan ts) | ||
| { | ||
| try | ||
| { | ||
| ts = ParseTimeSpan(s); | ||
| return true; | ||
| } | ||
| catch | ||
| { | ||
| ts = TimeSpan.Zero; | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Resolves the timestamp string to a TimeSpan | ||
| /// </summary> | ||
| public static TimeSpan ParseTimeSpan(string s) | ||
| { | ||
| // If the millisecond is two-digit, add an extra 0 at the end | ||
| if (s.Split('.')[1].Length == 2) | ||
| { | ||
| s += '0'; | ||
| } | ||
| return TimeSpan.Parse("00:" + s); | ||
| } | ||
|
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| /// <summary> | ||
| /// Change the timestamp to a two-digit millisecond format | ||
| /// </summary> | ||
| public static string ToShortString(this TimeSpan ts, bool isShort = false) | ||
| { | ||
| if (isShort) | ||
| { | ||
| return $"{ts.Minutes:00}:{ts.Seconds:00}.{ts.Milliseconds / 10:00}"; | ||
| } | ||
| else | ||
| { | ||
| return $"{ts.Minutes:00}:{ts.Seconds:00}.{ts.Milliseconds:000}"; | ||
| } | ||
| } | ||
| } |
161 changes: 161 additions & 0 deletions
161
QuickLook.Plugin/QuickLook.Plugin.VideoViewer/LyricTrack/LrcLine.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,161 @@ | ||
| // Copyright © 2024 ema | ||
| // | ||
| // This file is part of QuickLook program. | ||
| // | ||
| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| using System; | ||
| using System.Diagnostics; | ||
|
|
||
| namespace QuickLook.Plugin.VideoViewer.LyricTrack; | ||
|
|
||
| /// <summary> | ||
| /// https://github.com/lemutec/LyricStudio | ||
| /// https://en.wikipedia.org/wiki/LRC_(file_format) | ||
| /// </summary> | ||
| [DebuggerDisplay("{PreviewText}")] | ||
| public class LrcLine : IComparable<LrcLine> | ||
| { | ||
| public static readonly LrcLine Empty = new(); | ||
|
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||
| public TimeSpan? LrcTime { get; set; } = default; | ||
|
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| public static bool IsShort { get; set; } = false; | ||
|
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| public string LrcTimeText | ||
| { | ||
| get => LrcTime.HasValue ? LrcHelper.ToShortString(LrcTime.Value, IsShort) : string.Empty; | ||
| set | ||
| { | ||
| if (LrcHelper.TryParseTimeSpan(value, out TimeSpan ts)) | ||
| { | ||
| LrcTime = ts; | ||
| } | ||
| else | ||
| { | ||
| LrcTime = null; | ||
| } | ||
| } | ||
| } | ||
|
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| public string LrcText { get; set; } | ||
|
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| /// <summary> | ||
| /// Preview such as [{LrcTime:mm:ss.fff}]{LyricText} | ||
| /// </summary> | ||
| public string PreviewText | ||
| { | ||
| get | ||
| { | ||
| if (LrcTime.HasValue) | ||
| { | ||
| return $"[{LrcHelper.ToShortString(LrcTime.Value, IsShort)}]{LrcText}"; | ||
| } | ||
| else if (!string.IsNullOrWhiteSpace(LrcText)) | ||
| { | ||
| return $"[{LrcText}]"; | ||
| } | ||
| else | ||
| { | ||
| return string.Empty; | ||
| } | ||
| } | ||
| } | ||
|
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| public LrcLine(double time, string text) | ||
| { | ||
| LrcTime = new TimeSpan(0, 0, 0, 0, (int)(time * 1000)); | ||
| LrcText = text; | ||
| } | ||
|
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| public LrcLine(TimeSpan? time, string text) | ||
| { | ||
| LrcTime = time; | ||
| LrcText = text; | ||
| } | ||
|
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| public LrcLine(TimeSpan? time) | ||
| : this(time, string.Empty) | ||
| { | ||
| } | ||
|
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| public LrcLine(LrcLine lrcLine) | ||
| { | ||
| LrcTime = lrcLine.LrcTime; | ||
| LrcText = lrcLine.LrcText; | ||
| } | ||
|
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| public LrcLine(string line) | ||
| : this(Parse(line)) | ||
| { | ||
| } | ||
|
|
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| public LrcLine() | ||
| { | ||
| LrcTime = null; | ||
| LrcText = string.Empty; | ||
| } | ||
|
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| public static LrcLine Parse(string line) | ||
| { | ||
| if (string.IsNullOrWhiteSpace(line)) | ||
| { | ||
| return Empty; | ||
| } | ||
|
|
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| if (CheckMultiLine(line)) | ||
| { | ||
| throw new FormatException(); | ||
| } | ||
|
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| string[] slices = line.TrimStart().TrimStart('[').Split(']'); | ||
|
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| if (!LrcHelper.TryParseTimeSpan(slices[0], out TimeSpan time)) | ||
| { | ||
| return new LrcLine(null, slices[0]); | ||
| } | ||
|
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| return new LrcLine(time, slices[1]); | ||
| } | ||
|
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| public static bool TryParse(string line, out LrcLine lrcLine) | ||
| { | ||
| try | ||
| { | ||
| lrcLine = Parse(line); | ||
| return true; | ||
| } | ||
| catch | ||
| { | ||
| lrcLine = Empty; | ||
| return false; | ||
| } | ||
| } | ||
|
|
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| public static bool CheckMultiLine(string line) | ||
| { | ||
| if (line.TrimStart().IndexOf('[', 1) != -1) return true; | ||
| else return false; | ||
| } | ||
|
|
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| public override string ToString() => PreviewText; | ||
|
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| public int CompareTo(LrcLine other) | ||
| { | ||
| // Sort order: null < TimeSpan < string | ||
| if (!LrcTime.HasValue) return -1; | ||
| if (!other.LrcTime.HasValue) return 1; | ||
| return LrcTime.Value.CompareTo(other.LrcTime.Value); | ||
| } | ||
| } |
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