jellyfin/MediaBrowser.Controller/Providers/MediaInfo/FFProbeAudioInfoProvider.cs
2013-05-06 23:46:14 -04:00

231 lines
8.1 KiB
C#

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