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205 lines
7.3 KiB
C#
205 lines
7.3 KiB
C#
using MediaBrowser.Common.IO;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.MediaInfo;
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using MediaBrowser.Model.Entities;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Controller.Providers.MediaInfo
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{
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/// <summary>
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/// Extracts audio information using ffprobe
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/// </summary>
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public class FFProbeAudioInfoProvider : BaseFFProbeProvider<Audio>
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{
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/// <summary>
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/// Gets the name of the cache directory.
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/// </summary>
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/// <value>The name of the cache directory.</value>
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protected override string CacheDirectoryName
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{
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get
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{
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return "ffmpeg-audio-info";
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}
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}
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/// <summary>
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/// Fetches the specified audio.
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/// </summary>
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/// <param name="audio">The audio.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <param name="data">The data.</param>
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/// <param name="isoMount">The iso mount.</param>
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/// <returns>Task.</returns>
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protected override Task Fetch(Audio audio, CancellationToken cancellationToken, FFProbeResult data, IIsoMount isoMount)
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{
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return Task.Run(() =>
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{
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if (data.streams == null)
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{
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Logger.Error("Audio item has no streams: " + audio.Path);
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return;
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}
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audio.MediaStreams = data.streams.Select(s => GetMediaStream(s, data.format)).ToList();
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// Get the first audio stream
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var stream = data.streams.First(s => s.codec_type.Equals("audio", StringComparison.OrdinalIgnoreCase));
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// Get duration from stream properties
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var duration = stream.duration;
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// If it's not there go into format properties
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if (string.IsNullOrEmpty(duration))
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{
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duration = data.format.duration;
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}
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// If we got something, parse it
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if (!string.IsNullOrEmpty(duration))
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{
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audio.RunTimeTicks = TimeSpan.FromSeconds(double.Parse(duration)).Ticks;
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}
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if (data.format.tags != null)
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{
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FetchDataFromTags(audio, data.format.tags);
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}
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});
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}
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/// <summary>
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/// Fetches data from the tags dictionary
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/// </summary>
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/// <param name="audio">The audio.</param>
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/// <param name="tags">The tags.</param>
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private void FetchDataFromTags(Audio audio, Dictionary<string, string> tags)
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{
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var title = GetDictionaryValue(tags, "title");
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// Only set Name if title was found in the dictionary
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if (!string.IsNullOrEmpty(title))
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{
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audio.Name = title;
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}
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var composer = GetDictionaryValue(tags, "composer");
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if (!string.IsNullOrWhiteSpace(composer))
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{
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// Only use the comma as a delimeter if there are no slashes or pipes.
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// We want to be careful not to split names that have commas in them
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var delimeter = composer.IndexOf('/') == -1 && composer.IndexOf('|') == -1 ? new[] { ',' } : new[] { '/', '|' };
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foreach (var person in composer.Split(delimeter, StringSplitOptions.RemoveEmptyEntries))
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{
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var name = person.Trim();
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if (!string.IsNullOrEmpty(name))
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{
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audio.AddPerson(new PersonInfo { Name = name, Type = PersonType.Composer });
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}
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}
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}
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audio.Album = GetDictionaryValue(tags, "album");
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audio.Artist = GetDictionaryValue(tags, "artist");
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if (!string.IsNullOrWhiteSpace(audio.Artist))
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{
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// Add to people too
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audio.AddPerson(new PersonInfo {Name = audio.Artist, Type = PersonType.MusicArtist});
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}
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// Several different forms of albumartist
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audio.AlbumArtist = GetDictionaryValue(tags, "albumartist") ?? GetDictionaryValue(tags, "album artist") ?? GetDictionaryValue(tags, "album_artist");
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// Track number
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audio.IndexNumber = GetDictionaryNumericValue(tags, "track");
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// Disc number
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audio.ParentIndexNumber = GetDictionaryDiscValue(tags);
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audio.Language = GetDictionaryValue(tags, "language");
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audio.ProductionYear = GetDictionaryNumericValue(tags, "date");
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// Several different forms of retaildate
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audio.PremiereDate = GetDictionaryDateTime(tags, "retaildate") ?? GetDictionaryDateTime(tags, "retail date") ?? GetDictionaryDateTime(tags, "retail_date");
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// If we don't have a ProductionYear try and get it from PremiereDate
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if (audio.PremiereDate.HasValue && !audio.ProductionYear.HasValue)
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{
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audio.ProductionYear = audio.PremiereDate.Value.Year;
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}
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FetchGenres(audio, tags);
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// There's several values in tags may or may not be present
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FetchStudios(audio, tags, "organization");
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FetchStudios(audio, tags, "ensemble");
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FetchStudios(audio, tags, "publisher");
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}
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/// <summary>
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/// Gets the studios from the tags collection
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/// </summary>
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/// <param name="audio">The audio.</param>
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/// <param name="tags">The tags.</param>
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/// <param name="tagName">Name of the tag.</param>
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private void FetchStudios(Audio audio, Dictionary<string, string> tags, string tagName)
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{
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var val = GetDictionaryValue(tags, tagName);
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if (!string.IsNullOrEmpty(val))
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{
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audio.AddStudios(val.Split(new[] { '/', '|' }, StringSplitOptions.RemoveEmptyEntries));
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}
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}
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/// <summary>
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/// Gets the genres from the tags collection
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/// </summary>
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/// <param name="audio">The audio.</param>
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/// <param name="tags">The tags.</param>
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private void FetchGenres(Audio audio, Dictionary<string, string> tags)
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{
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var val = GetDictionaryValue(tags, "genre");
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if (!string.IsNullOrEmpty(val))
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{
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audio.AddGenres(val.Split(new[] { '/', '|' }, StringSplitOptions.RemoveEmptyEntries));
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}
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}
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/// <summary>
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/// Gets the disc number, which is sometimes can be in the form of '1', or '1/3'
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/// </summary>
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/// <param name="tags">The tags.</param>
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/// <returns>System.Nullable{System.Int32}.</returns>
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private int? GetDictionaryDiscValue(Dictionary<string, string> tags)
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{
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var disc = GetDictionaryValue(tags, "disc");
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if (!string.IsNullOrEmpty(disc))
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{
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disc = disc.Split('/')[0];
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int num;
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if (int.TryParse(disc, out num))
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{
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return num;
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}
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}
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return null;
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}
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}
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}
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