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65 lines
2.3 KiB
65 lines
2.3 KiB
using System;
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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 Jellyfin.Extensions;
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using MediaBrowser.Model.MediaInfo;
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using Microsoft.Extensions.Logging;
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using Nikse.SubtitleEdit.Core.Common;
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using ILogger = Microsoft.Extensions.Logging.ILogger;
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using SubtitleFormat = Nikse.SubtitleEdit.Core.SubtitleFormats.SubtitleFormat;
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namespace MediaBrowser.MediaEncoding.Subtitles
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{
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/// <summary>
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/// SubStation Alpha subtitle parser.
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/// </summary>
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public class SubtitleEditParser : ISubtitleParser
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{
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private readonly ILogger _logger;
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/// <summary>
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/// Initializes a new instance of the <see cref="SubtitleEditParser"/> class.
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/// </summary>
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/// <param name="logger">The logger.</param>
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public SubtitleEditParser(ILogger logger)
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{
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_logger = logger;
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}
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/// <inheritdoc />
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public SubtitleTrackInfo Parse(Stream stream, string fileExtension)
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{
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var subtitleFormat = SubtitleFormat.AllSubtitleFormats.FirstOrDefault(asf => asf.Extension.Equals(fileExtension, StringComparison.OrdinalIgnoreCase));
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if (subtitleFormat == null)
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{
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throw new ArgumentException("Unsupported format: " + fileExtension);
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}
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var lines = stream.ReadAllLines().ToList();
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var subtitle = new Subtitle();
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subtitleFormat.LoadSubtitle(subtitle, lines, fileExtension);
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if (subtitleFormat.ErrorCount > 0)
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{
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_logger.LogError("{ErrorCount} errors encountered while parsing subtitle", subtitleFormat.ErrorCount);
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}
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var trackInfo = new SubtitleTrackInfo();
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int len = subtitle.Paragraphs.Count;
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var trackEvents = new SubtitleTrackEvent[len];
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for (int i = 0; i < len; i++)
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{
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var p = subtitle.Paragraphs[i];
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trackEvents[i] = new SubtitleTrackEvent(p.Number.ToString(CultureInfo.InvariantCulture), p.Text)
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{
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StartPositionTicks = p.StartTime.TimeSpan.Ticks,
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EndPositionTicks = p.EndTime.TimeSpan.Ticks
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};
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}
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trackInfo.TrackEvents = trackEvents;
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return trackInfo;
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}
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}
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}
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