| | | 1 | | using System; |
| | | 2 | | using System.Collections.Generic; |
| | | 3 | | using System.IO; |
| | | 4 | | using System.Linq; |
| | | 5 | | using System.Text; |
| | | 6 | | using System.Text.RegularExpressions; |
| | | 7 | | using Jellyfin.Extensions; |
| | | 8 | | using LrcParser.Model; |
| | | 9 | | using LrcParser.Parser; |
| | | 10 | | using MediaBrowser.Controller.Lyrics; |
| | | 11 | | using MediaBrowser.Controller.Resolvers; |
| | | 12 | | using MediaBrowser.Model.Lyrics; |
| | | 13 | | |
| | | 14 | | namespace MediaBrowser.Providers.Lyric; |
| | | 15 | | |
| | | 16 | | /// <summary> |
| | | 17 | | /// LRC Lyric Parser. |
| | | 18 | | /// </summary> |
| | | 19 | | public partial class LrcLyricParser : ILyricParser |
| | | 20 | | { |
| | | 21 | | private readonly LyricParser _lrcLyricParser; |
| | | 22 | | |
| | 1 | 23 | | private static readonly string[] _supportedMediaTypes = [".lrc", ".elrc"]; |
| | | 24 | | |
| | | 25 | | /// <summary> |
| | | 26 | | /// Initializes a new instance of the <see cref="LrcLyricParser"/> class. |
| | | 27 | | /// </summary> |
| | | 28 | | public LrcLyricParser() |
| | | 29 | | { |
| | 22 | 30 | | _lrcLyricParser = new LrcParser.Parser.Lrc.LrcParser(); |
| | 22 | 31 | | } |
| | | 32 | | |
| | | 33 | | /// <inheritdoc /> |
| | 0 | 34 | | public string Name => "LrcLyricProvider"; |
| | | 35 | | |
| | | 36 | | /// <summary> |
| | | 37 | | /// Gets the priority. |
| | | 38 | | /// </summary> |
| | | 39 | | /// <value>The priority.</value> |
| | 21 | 40 | | public ResolverPriority Priority => ResolverPriority.Fourth; |
| | | 41 | | |
| | | 42 | | /// <inheritdoc /> |
| | | 43 | | public LyricDto? ParseLyrics(LyricFile lyrics) |
| | | 44 | | { |
| | 1 | 45 | | if (!_supportedMediaTypes.Contains(Path.GetExtension(lyrics.Name.AsSpan()), StringComparison.OrdinalIgnoreCase)) |
| | | 46 | | { |
| | 0 | 47 | | return null; |
| | | 48 | | } |
| | | 49 | | |
| | | 50 | | Song lyricData; |
| | | 51 | | |
| | | 52 | | try |
| | | 53 | | { |
| | 1 | 54 | | lyricData = _lrcLyricParser.Decode(lyrics.Content); |
| | 1 | 55 | | } |
| | 0 | 56 | | catch (Exception) |
| | | 57 | | { |
| | | 58 | | // Failed to parse, return null so the next parser will be tried |
| | 0 | 59 | | return null; |
| | | 60 | | } |
| | | 61 | | |
| | 1 | 62 | | List<LrcParser.Model.Lyric> sortedLyricData = lyricData.Lyrics.OrderBy(x => x.StartTime).ToList(); |
| | | 63 | | |
| | 1 | 64 | | if (sortedLyricData.Count == 0) |
| | | 65 | | { |
| | 0 | 66 | | return null; |
| | | 67 | | } |
| | | 68 | | |
| | 1 | 69 | | List<LyricLine> lyricList = []; |
| | 64 | 70 | | for (var lineIndex = 0; lineIndex < sortedLyricData.Count; lineIndex++) |
| | | 71 | | { |
| | 31 | 72 | | var lyric = sortedLyricData[lineIndex]; |
| | | 73 | | |
| | | 74 | | // Extract cues from time tags |
| | 31 | 75 | | var cues = new List<LyricLineCue>(); |
| | 31 | 76 | | if (lyric.TimeTags.Count > 0) |
| | | 77 | | { |
| | 31 | 78 | | var keys = lyric.TimeTags.Keys.ToList(); |
| | 682 | 79 | | for (var tagIndex = 0; tagIndex < keys.Count - 1; tagIndex++) |
| | | 80 | | { |
| | 310 | 81 | | var currentKey = keys[tagIndex]; |
| | 310 | 82 | | var nextKey = keys[tagIndex + 1]; |
| | | 83 | | |
| | 310 | 84 | | var currentPos = currentKey.State == IndexState.End ? currentKey.Index + 1 : currentKey.Index; |
| | 310 | 85 | | var nextPos = nextKey.State == IndexState.End ? nextKey.Index + 1 : nextKey.Index; |
| | 310 | 86 | | var currentMs = lyric.TimeTags[currentKey] ?? 0; |
| | 310 | 87 | | var nextMs = lyric.TimeTags[keys[tagIndex + 1]] ?? 0; |
| | 310 | 88 | | var currentSlice = lyric.Text[currentPos..nextPos]; |
| | 310 | 89 | | var currentSliceTrimmed = currentSlice.Trim(); |
| | 310 | 90 | | if (currentSliceTrimmed.Length > 0) |
| | | 91 | | { |
| | 155 | 92 | | cues.Add(new LyricLineCue( |
| | 155 | 93 | | position: currentPos, |
| | 155 | 94 | | endPosition: nextPos, |
| | 155 | 95 | | start: TimeSpan.FromMilliseconds(currentMs).Ticks, |
| | 155 | 96 | | end: TimeSpan.FromMilliseconds(nextMs).Ticks)); |
| | | 97 | | } |
| | | 98 | | } |
| | | 99 | | |
| | 31 | 100 | | var lastKey = keys[^1]; |
| | 31 | 101 | | var lastPos = lastKey.State == IndexState.End ? lastKey.Index + 1 : lastKey.Index; |
| | 31 | 102 | | var lastMs = lyric.TimeTags[lastKey] ?? 0; |
| | 31 | 103 | | var lastSlice = lyric.Text[lastPos..]; |
| | 31 | 104 | | var lastSliceTrimmed = lastSlice.Trim(); |
| | | 105 | | |
| | 31 | 106 | | if (lastSliceTrimmed.Length > 0) |
| | | 107 | | { |
| | 31 | 108 | | cues.Add(new LyricLineCue( |
| | 31 | 109 | | position: lastPos, |
| | 31 | 110 | | endPosition: lyric.Text.Length, |
| | 31 | 111 | | start: TimeSpan.FromMilliseconds(lastMs).Ticks, |
| | 31 | 112 | | end: lineIndex + 1 < sortedLyricData.Count ? TimeSpan.FromMilliseconds(sortedLyricData[lineIndex |
| | | 113 | | } |
| | | 114 | | } |
| | | 115 | | |
| | 31 | 116 | | long lyricStartTicks = TimeSpan.FromMilliseconds(lyric.StartTime).Ticks; |
| | 31 | 117 | | lyricList.Add(new LyricLine(lyric.Text, lyricStartTicks, cues)); |
| | | 118 | | } |
| | | 119 | | |
| | 1 | 120 | | return new LyricDto { Lyrics = lyricList }; |
| | 0 | 121 | | } |
| | | 122 | | } |