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Diffstat (limited to 'Jellyfin.Api/Controllers/SubtitleController.cs')
| -rw-r--r-- | Jellyfin.Api/Controllers/SubtitleController.cs | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/Jellyfin.Api/Controllers/SubtitleController.cs b/Jellyfin.Api/Controllers/SubtitleController.cs new file mode 100644 index 000000000..78c9d4398 --- /dev/null +++ b/Jellyfin.Api/Controllers/SubtitleController.cs @@ -0,0 +1,353 @@ +using System; +using System.Collections.Generic; +using System.ComponentModel.DataAnnotations; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using System.IO; +using System.Linq; +using System.Net.Mime; +using System.Text; +using System.Threading; +using System.Threading.Tasks; +using Jellyfin.Api.Attributes; +using Jellyfin.Api.Constants; +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.IO; +using MediaBrowser.Model.Net; +using MediaBrowser.Model.Providers; +using Microsoft.AspNetCore.Authorization; +using Microsoft.AspNetCore.Http; +using Microsoft.AspNetCore.Mvc; +using Microsoft.Extensions.Logging; + +namespace Jellyfin.Api.Controllers +{ + /// <summary> + /// Subtitle controller. + /// </summary> + [Route("")] + public class SubtitleController : BaseJellyfinApiController + { + private readonly ILibraryManager _libraryManager; + private readonly ISubtitleManager _subtitleManager; + private readonly ISubtitleEncoder _subtitleEncoder; + private readonly IMediaSourceManager _mediaSourceManager; + private readonly IProviderManager _providerManager; + private readonly IFileSystem _fileSystem; + private readonly IAuthorizationContext _authContext; + private readonly ILogger<SubtitleController> _logger; + + /// <summary> + /// Initializes a new instance of the <see cref="SubtitleController"/> class. + /// </summary> + /// <param name="libraryManager">Instance of <see cref="ILibraryManager"/> interface.</param> + /// <param name="subtitleManager">Instance of <see cref="ISubtitleManager"/> interface.</param> + /// <param name="subtitleEncoder">Instance of <see cref="ISubtitleEncoder"/> interface.</param> + /// <param name="mediaSourceManager">Instance of <see cref="IMediaSourceManager"/> interface.</param> + /// <param name="providerManager">Instance of <see cref="IProviderManager"/> interface.</param> + /// <param name="fileSystem">Instance of <see cref="IFileSystem"/> interface.</param> + /// <param name="authContext">Instance of <see cref="IAuthorizationContext"/> interface.</param> + /// <param name="logger">Instance of <see cref="ILogger{SubtitleController}"/> interface.</param> + public SubtitleController( + ILibraryManager libraryManager, + ISubtitleManager subtitleManager, + ISubtitleEncoder subtitleEncoder, + IMediaSourceManager mediaSourceManager, + IProviderManager providerManager, + IFileSystem fileSystem, + IAuthorizationContext authContext, + ILogger<SubtitleController> logger) + { + _libraryManager = libraryManager; + _subtitleManager = subtitleManager; + _subtitleEncoder = subtitleEncoder; + _mediaSourceManager = mediaSourceManager; + _providerManager = providerManager; + _fileSystem = fileSystem; + _authContext = authContext; + _logger = logger; + } + + /// <summary> + /// Deletes an external subtitle file. + /// </summary> + /// <param name="itemId">The item id.</param> + /// <param name="index">The index of the subtitle file.</param> + /// <response code="204">Subtitle deleted.</response> + /// <response code="404">Item not found.</response> + /// <returns>A <see cref="NoContentResult"/>.</returns> + [HttpDelete("Videos/{itemId}/Subtitles/{index}")] + [Authorize(Policy = Policies.RequiresElevation)] + [ProducesResponseType(StatusCodes.Status204NoContent)] + [ProducesResponseType(StatusCodes.Status404NotFound)] + public ActionResult<Task> DeleteSubtitle( + [FromRoute, Required] Guid itemId, + [FromRoute, Required] int index) + { + var item = _libraryManager.GetItemById(itemId); + + if (item == null) + { + return NotFound(); + } + + _subtitleManager.DeleteSubtitles(item, index); + return NoContent(); + } + + /// <summary> + /// Search remote subtitles. + /// </summary> + /// <param name="itemId">The item id.</param> + /// <param name="language">The language of the subtitles.</param> + /// <param name="isPerfectMatch">Optional. Only show subtitles which are a perfect match.</param> + /// <response code="200">Subtitles retrieved.</response> + /// <returns>An array of <see cref="RemoteSubtitleInfo"/>.</returns> + [HttpGet("Items/{itemId}/RemoteSearch/Subtitles/{language}")] + [Authorize(Policy = Policies.DefaultAuthorization)] + [ProducesResponseType(StatusCodes.Status200OK)] + public async Task<ActionResult<IEnumerable<RemoteSubtitleInfo>>> SearchRemoteSubtitles( + [FromRoute, Required] Guid itemId, + [FromRoute, Required] string language, + [FromQuery] bool? isPerfectMatch) + { + var video = (Video)_libraryManager.GetItemById(itemId); + + return await _subtitleManager.SearchSubtitles(video, language, isPerfectMatch, CancellationToken.None).ConfigureAwait(false); + } + + /// <summary> + /// Downloads a remote subtitle. + /// </summary> + /// <param name="itemId">The item id.</param> + /// <param name="subtitleId">The subtitle id.</param> + /// <response code="204">Subtitle downloaded.</response> + /// <returns>A <see cref="NoContentResult"/>.</returns> + [HttpPost("Items/{itemId}/RemoteSearch/Subtitles/{subtitleId}")] + [Authorize(Policy = Policies.DefaultAuthorization)] + [ProducesResponseType(StatusCodes.Status204NoContent)] + public async Task<ActionResult> DownloadRemoteSubtitles( + [FromRoute, Required] Guid itemId, + [FromRoute, Required] string subtitleId) + { + var video = (Video)_libraryManager.GetItemById(itemId); + + try + { + await _subtitleManager.DownloadSubtitles(video, subtitleId, CancellationToken.None) + .ConfigureAwait(false); + + _providerManager.QueueRefresh(video.Id, new MetadataRefreshOptions(new DirectoryService(_fileSystem)), RefreshPriority.High); + } + catch (Exception ex) + { + _logger.LogError(ex, "Error downloading subtitles"); + } + + return NoContent(); + } + + /// <summary> + /// Gets the remote subtitles. + /// </summary> + /// <param name="id">The item id.</param> + /// <response code="200">File returned.</response> + /// <returns>A <see cref="FileStreamResult"/> with the subtitle file.</returns> + [HttpGet("Providers/Subtitles/Subtitles/{id}")] + [Authorize(Policy = Policies.DefaultAuthorization)] + [ProducesResponseType(StatusCodes.Status200OK)] + [Produces(MediaTypeNames.Application.Octet)] + [ProducesFile("text/*")] + public async Task<ActionResult> GetRemoteSubtitles([FromRoute, Required] string id) + { + var result = await _subtitleManager.GetRemoteSubtitles(id, CancellationToken.None).ConfigureAwait(false); + + return File(result.Stream, MimeTypes.GetMimeType("file." + result.Format)); + } + + /// <summary> + /// Gets subtitles in a specified format. + /// </summary> + /// <param name="itemId">The item id.</param> + /// <param name="mediaSourceId">The media source id.</param> + /// <param name="index">The subtitle stream index.</param> + /// <param name="format">The format of the returned subtitle.</param> + /// <param name="endPositionTicks">Optional. The end position of the subtitle in ticks.</param> + /// <param name="copyTimestamps">Optional. Whether to copy the timestamps.</param> + /// <param name="addVttTimeMap">Optional. Whether to add a VTT time map.</param> + /// <param name="startPositionTicks">Optional. The start position of the subtitle in ticks.</param> + /// <response code="200">File returned.</response> + /// <returns>A <see cref="FileContentResult"/> with the subtitle file.</returns> + [HttpGet("Videos/{itemId}/{mediaSourceId}/Subtitles/{index}/Stream.{format}")] + [HttpGet("Videos/{itemId}/{mediaSourceId}/Subtitles/{index}/{startPositionTicks?}/Stream.{format}", Name = "GetSubtitle_2")] + [ProducesResponseType(StatusCodes.Status200OK)] + [ProducesFile("text/*")] + public async Task<ActionResult> GetSubtitle( + [FromRoute, Required] Guid itemId, + [FromRoute, Required] string mediaSourceId, + [FromRoute, Required] int index, + [FromRoute, Required] string format, + [FromQuery] long? endPositionTicks, + [FromQuery] bool copyTimestamps = false, + [FromQuery] bool addVttTimeMap = false, + [FromRoute] long startPositionTicks = 0) + { + if (string.Equals(format, "js", StringComparison.OrdinalIgnoreCase)) + { + format = "json"; + } + + if (string.IsNullOrEmpty(format)) + { + var item = (Video)_libraryManager.GetItemById(itemId); + + var idString = itemId.ToString("N", CultureInfo.InvariantCulture); + var mediaSource = _mediaSourceManager.GetStaticMediaSources(item, false) + .First(i => string.Equals(i.Id, mediaSourceId ?? idString, StringComparison.Ordinal)); + + var subtitleStream = mediaSource.MediaStreams + .First(i => i.Type == MediaStreamType.Subtitle && i.Index == index); + + return PhysicalFile(subtitleStream.Path, MimeTypes.GetMimeType(subtitleStream.Path)); + } + + if (string.Equals(format, "vtt", StringComparison.OrdinalIgnoreCase) && addVttTimeMap) + { + await using Stream stream = await EncodeSubtitles(itemId, mediaSourceId, index, format, startPositionTicks, endPositionTicks, copyTimestamps).ConfigureAwait(false); + using var reader = new StreamReader(stream); + + var text = await reader.ReadToEndAsync().ConfigureAwait(false); + + text = text.Replace("WEBVTT", "WEBVTT\nX-TIMESTAMP-MAP=MPEGTS:900000,LOCAL:00:00:00.000", StringComparison.Ordinal); + + return File(Encoding.UTF8.GetBytes(text), MimeTypes.GetMimeType("file." + format)); + } + + return File( + await EncodeSubtitles( + itemId, + mediaSourceId, + index, + format, + startPositionTicks, + endPositionTicks, + copyTimestamps).ConfigureAwait(false), + MimeTypes.GetMimeType("file." + format)); + } + + /// <summary> + /// Gets an HLS subtitle playlist. + /// </summary> + /// <param name="itemId">The item id.</param> + /// <param name="index">The subtitle stream index.</param> + /// <param name="mediaSourceId">The media source id.</param> + /// <param name="segmentLength">The subtitle segment length.</param> + /// <response code="200">Subtitle playlist retrieved.</response> + /// <returns>A <see cref="FileContentResult"/> with the HLS subtitle playlist.</returns> + [HttpGet("Videos/{itemId}/{mediaSourceId}/Subtitles/{index}/subtitles.m3u8")] + [Authorize(Policy = Policies.DefaultAuthorization)] + [ProducesResponseType(StatusCodes.Status200OK)] + [ProducesPlaylistFile] + [SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "index", Justification = "Imported from ServiceStack")] + public async Task<ActionResult> GetSubtitlePlaylist( + [FromRoute, Required] Guid itemId, + [FromRoute, Required] int index, + [FromRoute, Required] string mediaSourceId, + [FromQuery, Required] int segmentLength) + { + var item = (Video)_libraryManager.GetItemById(itemId); + + var mediaSource = await _mediaSourceManager.GetMediaSource(item, mediaSourceId, null, false, CancellationToken.None).ConfigureAwait(false); + + var runtime = mediaSource.RunTimeTicks ?? -1; + + if (runtime <= 0) + { + throw new ArgumentException("HLS Subtitles are not supported for this media."); + } + + var segmentLengthTicks = TimeSpan.FromSeconds(segmentLength).Ticks; + if (segmentLengthTicks <= 0) + { + throw new ArgumentException("segmentLength was not given, or it was given incorrectly. (It should be bigger than 0)"); + } + + var builder = new StringBuilder(); + builder.AppendLine("#EXTM3U") + .Append("#EXT-X-TARGETDURATION:") + .AppendLine(segmentLength.ToString(CultureInfo.InvariantCulture)) + .AppendLine("#EXT-X-VERSION:3") + .AppendLine("#EXT-X-MEDIA-SEQUENCE:0") + .AppendLine("#EXT-X-PLAYLIST-TYPE:VOD"); + + long positionTicks = 0; + + var accessToken = _authContext.GetAuthorizationInfo(Request).Token; + + while (positionTicks < runtime) + { + var remaining = runtime - positionTicks; + var lengthTicks = Math.Min(remaining, segmentLengthTicks); + + builder.Append("#EXTINF:") + .Append(TimeSpan.FromTicks(lengthTicks).TotalSeconds.ToString(CultureInfo.InvariantCulture)) + .AppendLine(","); + + var endPositionTicks = Math.Min(runtime, positionTicks + segmentLengthTicks); + + var url = string.Format( + CultureInfo.CurrentCulture, + "stream.vtt?CopyTimestamps=true&AddVttTimeMap=true&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 File(Encoding.UTF8.GetBytes(builder.ToString()), MimeTypes.GetMimeType("playlist.m3u8")); + } + + /// <summary> + /// Encodes a subtitle in the specified format. + /// </summary> + /// <param name="id">The media id.</param> + /// <param name="mediaSourceId">The source media id.</param> + /// <param name="index">The subtitle index.</param> + /// <param name="format">The format to convert to.</param> + /// <param name="startPositionTicks">The start position in ticks.</param> + /// <param name="endPositionTicks">The end position in ticks.</param> + /// <param name="copyTimestamps">Whether to copy the timestamps.</param> + /// <returns>A <see cref="Task{Stream}"/> with the new subtitle file.</returns> + private Task<Stream> EncodeSubtitles( + Guid id, + string? mediaSourceId, + int index, + string format, + long startPositionTicks, + long? endPositionTicks, + bool copyTimestamps) + { + var item = _libraryManager.GetItemById(id); + + return _subtitleEncoder.GetSubtitles( + item, + mediaSourceId, + index, + format, + startPositionTicks, + endPositionTicks ?? 0, + copyTimestamps, + CancellationToken.None); + } + } +} |