jellyfin/MediaBrowser.Api/Subtitles/SubtitleService.cs
2016-03-07 14:14:06 -05:00

280 lines
12 KiB
C#

using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Net;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Controller.Subtitles;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Providers;
using ServiceStack;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using CommonIO;
using MimeTypes = MediaBrowser.Model.Net.MimeTypes;
using MediaBrowser.Common.IO;
namespace MediaBrowser.Api.Subtitles
{
[Route("/Videos/{Id}/Subtitles/{Index}", "DELETE", Summary = "Deletes an external subtitle file")]
[Authenticated(Roles = "Admin")]
public class DeleteSubtitle
{
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "DELETE")]
public string Id { get; set; }
[ApiMember(Name = "Index", Description = "The subtitle stream index", IsRequired = true, DataType = "int", ParameterType = "path", Verb = "DELETE")]
public int Index { get; set; }
}
[Route("/Items/{Id}/RemoteSearch/Subtitles/{Language}", "GET")]
[Authenticated]
public class SearchRemoteSubtitles : IReturn<List<RemoteSubtitleInfo>>
{
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
[ApiMember(Name = "Language", Description = "Language", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Language { get; set; }
}
[Route("/Items/{Id}/RemoteSearch/Subtitles/Providers", "GET")]
[Authenticated]
public class GetSubtitleProviders : IReturn<List<SubtitleProviderInfo>>
{
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
}
[Route("/Items/{Id}/RemoteSearch/Subtitles/{SubtitleId}", "POST")]
[Authenticated]
public class DownloadRemoteSubtitles : IReturnVoid
{
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "POST")]
public string Id { get; set; }
[ApiMember(Name = "SubtitleId", Description = "SubtitleId", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "POST")]
public string SubtitleId { get; set; }
}
[Route("/Providers/Subtitles/Subtitles/{Id}", "GET")]
[Authenticated]
public class GetRemoteSubtitles : IReturnVoid
{
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
}
[Route("/Videos/{Id}/{MediaSourceId}/Subtitles/{Index}/Stream.{Format}", "GET", Summary = "Gets subtitles in a specified format.")]
[Route("/Videos/{Id}/{MediaSourceId}/Subtitles/{Index}/{StartPositionTicks}/Stream.{Format}", "GET", Summary = "Gets subtitles in a specified format.")]
public class GetSubtitle
{
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
[ApiMember(Name = "MediaSourceId", Description = "MediaSourceId", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string MediaSourceId { get; set; }
[ApiMember(Name = "Index", Description = "The subtitle stream index", IsRequired = true, DataType = "int", ParameterType = "path", Verb = "GET")]
public int Index { get; set; }
[ApiMember(Name = "Format", Description = "Format", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Format { get; set; }
[ApiMember(Name = "StartPositionTicks", Description = "StartPositionTicks", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public long StartPositionTicks { get; set; }
[ApiMember(Name = "EndPositionTicks", Description = "EndPositionTicks", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public long? EndPositionTicks { get; set; }
}
[Route("/Videos/{Id}/{MediaSourceId}/Subtitles/{Index}/subtitles.m3u8", "GET", Summary = "Gets an HLS subtitle playlist.")]
[Authenticated]
public class GetSubtitlePlaylist
{
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
[ApiMember(Name = "MediaSourceId", Description = "MediaSourceId", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string MediaSourceId { get; set; }
[ApiMember(Name = "Index", Description = "The subtitle stream index", IsRequired = true, DataType = "int", ParameterType = "path", Verb = "GET")]
public int Index { get; set; }
[ApiMember(Name = "SegmentLength", Description = "The subtitle srgment length", IsRequired = true, DataType = "int", ParameterType = "path", Verb = "GET")]
public int SegmentLength { get; set; }
}
public class SubtitleService : BaseApiService
{
private readonly ILibraryManager _libraryManager;
private readonly ISubtitleManager _subtitleManager;
private readonly ISubtitleEncoder _subtitleEncoder;
private readonly IMediaSourceManager _mediaSourceManager;
private readonly IProviderManager _providerManager;
private readonly IFileSystem _fileSystem;
public SubtitleService(ILibraryManager libraryManager, ISubtitleManager subtitleManager, ISubtitleEncoder subtitleEncoder, IMediaSourceManager mediaSourceManager, IProviderManager providerManager, IFileSystem fileSystem)
{
_libraryManager = libraryManager;
_subtitleManager = subtitleManager;
_subtitleEncoder = subtitleEncoder;
_mediaSourceManager = mediaSourceManager;
_providerManager = providerManager;
_fileSystem = fileSystem;
}
public async Task<object> Get(GetSubtitlePlaylist request)
{
var item = (Video)_libraryManager.GetItemById(new Guid(request.Id));
var mediaSource = await _mediaSourceManager.GetMediaSource(item, request.MediaSourceId, false).ConfigureAwait(false);
var builder = new StringBuilder();
var runtime = mediaSource.RunTimeTicks ?? -1;
if (runtime <= 0)
{
throw new ArgumentException("HLS Subtitles are not supported for this media.");
}
builder.AppendLine("#EXTM3U");
builder.AppendLine("#EXT-X-TARGETDURATION:" + request.SegmentLength.ToString(CultureInfo.InvariantCulture));
builder.AppendLine("#EXT-X-VERSION:3");
builder.AppendLine("#EXT-X-MEDIA-SEQUENCE:0");
long positionTicks = 0;
var segmentLengthTicks = TimeSpan.FromSeconds(request.SegmentLength).Ticks;
var accessToken = AuthorizationContext.GetAuthorizationInfo(Request).Token;
while (positionTicks < runtime)
{
var remaining = runtime - positionTicks;
var lengthTicks = Math.Min(remaining, segmentLengthTicks);
builder.AppendLine("#EXTINF:" + TimeSpan.FromTicks(lengthTicks).TotalSeconds.ToString(CultureInfo.InvariantCulture));
var endPositionTicks = Math.Min(runtime, positionTicks + segmentLengthTicks);
var url = string.Format("stream.vtt?StartPositionTicks={0}&EndPositionTicks={1}&api_key={2}",
positionTicks.ToString(CultureInfo.InvariantCulture),
endPositionTicks.ToString(CultureInfo.InvariantCulture),
accessToken);
builder.AppendLine(url);
positionTicks += segmentLengthTicks;
}
builder.AppendLine("#EXT-X-ENDLIST");
return ResultFactory.GetResult(builder.ToString(), MimeTypes.GetMimeType("playlist.m3u8"), new Dictionary<string, string>());
}
public object Get(GetSubtitle request)
{
if (string.Equals(request.Format, "js", StringComparison.OrdinalIgnoreCase))
{
request.Format = "json";
}
if (string.IsNullOrEmpty(request.Format))
{
var item = (Video)_libraryManager.GetItemById(new Guid(request.Id));
var mediaSource = _mediaSourceManager.GetStaticMediaSources(item, false, null)
.First(i => string.Equals(i.Id, request.MediaSourceId ?? request.Id));
var subtitleStream = mediaSource.MediaStreams
.First(i => i.Type == MediaStreamType.Subtitle && i.Index == request.Index);
return ToStaticFileResult(subtitleStream.Path);
}
var stream = GetSubtitles(request).Result;
return ResultFactory.GetResult(stream, MimeTypes.GetMimeType("file." + request.Format));
}
private async Task<Stream> GetSubtitles(GetSubtitle request)
{
return await _subtitleEncoder.GetSubtitles(request.Id,
request.MediaSourceId,
request.Index,
request.Format,
request.StartPositionTicks,
request.EndPositionTicks,
CancellationToken.None).ConfigureAwait(false);
}
public object Get(SearchRemoteSubtitles request)
{
var video = (Video)_libraryManager.GetItemById(request.Id);
var response = _subtitleManager.SearchSubtitles(video, request.Language, CancellationToken.None).Result;
return ToOptimizedResult(response);
}
public void Delete(DeleteSubtitle request)
{
var task = _subtitleManager.DeleteSubtitles(request.Id, request.Index);
Task.WaitAll(task);
}
public object Get(GetSubtitleProviders request)
{
var result = _subtitleManager.GetProviders(request.Id);
return ToOptimizedResult(result);
}
public object Get(GetRemoteSubtitles request)
{
var result = _subtitleManager.GetRemoteSubtitles(request.Id, CancellationToken.None).Result;
return ResultFactory.GetResult(result.Stream, MimeTypes.GetMimeType("file." + result.Format));
}
public void Post(DownloadRemoteSubtitles request)
{
var video = (Video)_libraryManager.GetItemById(request.Id);
Task.Run(async () =>
{
try
{
await _subtitleManager.DownloadSubtitles(video, request.SubtitleId, CancellationToken.None)
.ConfigureAwait(false);
_providerManager.QueueRefresh(video.Id, new MetadataRefreshOptions(_fileSystem));
}
catch (Exception ex)
{
Logger.ErrorException("Error downloading subtitles", ex);
}
});
}
}
}