diff options
Diffstat (limited to 'Jellyfin.Api/Helpers')
| -rw-r--r-- | Jellyfin.Api/Helpers/DynamicHlsHelper.cs | 125 |
1 files changed, 124 insertions, 1 deletions
diff --git a/Jellyfin.Api/Helpers/DynamicHlsHelper.cs b/Jellyfin.Api/Helpers/DynamicHlsHelper.cs index 4486954c6..d8a16876d 100644 --- a/Jellyfin.Api/Helpers/DynamicHlsHelper.cs +++ b/Jellyfin.Api/Helpers/DynamicHlsHelper.cs @@ -10,6 +10,7 @@ using System.Threading.Tasks; using Jellyfin.Api.Extensions; using Jellyfin.Api.Models.StreamingDtos; using Jellyfin.Extensions; +using Jellyfin.Data.Entities; using MediaBrowser.Common.Configuration; using MediaBrowser.Common.Extensions; using MediaBrowser.Common.Net; @@ -18,6 +19,7 @@ using MediaBrowser.Controller.Devices; using MediaBrowser.Controller.Dlna; using MediaBrowser.Controller.Library; using MediaBrowser.Controller.MediaEncoding; +using MediaBrowser.Controller.Trickplay; using MediaBrowser.Model.Dlna; using MediaBrowser.Model.Entities; using MediaBrowser.Model.Net; @@ -45,6 +47,7 @@ public class DynamicHlsHelper private readonly ILogger<DynamicHlsHelper> _logger; private readonly IHttpContextAccessor _httpContextAccessor; private readonly EncodingHelper _encodingHelper; + private readonly ITrickplayManager _trickplayManager; /// <summary> /// Initializes a new instance of the <see cref="DynamicHlsHelper"/> class. @@ -61,6 +64,7 @@ public class DynamicHlsHelper /// <param name="logger">Instance of the <see cref="ILogger{DynamicHlsHelper}"/> interface.</param> /// <param name="httpContextAccessor">Instance of the <see cref="IHttpContextAccessor"/> interface.</param> /// <param name="encodingHelper">Instance of <see cref="EncodingHelper"/>.</param> + /// <param name="trickplayManager">Instance of <see cref="ITrickplayManager"/>.</param> public DynamicHlsHelper( ILibraryManager libraryManager, IUserManager userManager, @@ -73,7 +77,8 @@ public class DynamicHlsHelper INetworkManager networkManager, ILogger<DynamicHlsHelper> logger, IHttpContextAccessor httpContextAccessor, - EncodingHelper encodingHelper) + EncodingHelper encodingHelper, + ITrickplayManager trickplayManager) { _libraryManager = libraryManager; _userManager = userManager; @@ -87,6 +92,7 @@ public class DynamicHlsHelper _logger = logger; _httpContextAccessor = httpContextAccessor; _encodingHelper = encodingHelper; + _trickplayManager = trickplayManager; } /// <summary> @@ -112,6 +118,81 @@ public class DynamicHlsHelper cancellationTokenSource).ConfigureAwait(false); } + /// <summary> + /// Get trickplay tiles hls playlist. + /// </summary> + /// <param name="width">The width of a single tile.</param> + /// <param name="mediaSourceId">The media version id.</param> + /// <returns>The resulting <see cref="ActionResult"/>.</returns> + public ActionResult GetTilesHlsPlaylist(int width, string mediaSourceId) + { + if (_httpContextAccessor.HttpContext is null) + { + throw new ResourceNotFoundException(nameof(_httpContextAccessor.HttpContext)); + } + + var tilesResolutions = _trickplayManager.GetTilesResolutions(Guid.Parse(mediaSourceId)); + if (tilesResolutions is not null && tilesResolutions.ContainsKey(width)) + { + var builder = new StringBuilder(128); + var tilesInfo = tilesResolutions[width]; + + if (tilesInfo.TileCount > 0) + { + const string urlFormat = "{0}/Trickplay/{1}/{2}.jpg?&api_key={3}"; + const string decimalFormat = "{0:0.###}"; + + var resolution = tilesInfo.Width.ToString(CultureInfo.InvariantCulture) + "x" + tilesInfo.Height.ToString(CultureInfo.InvariantCulture); + var layout = tilesInfo.TileWidth.ToString(CultureInfo.InvariantCulture) + "x" + tilesInfo.TileHeight.ToString(CultureInfo.InvariantCulture); + var tilesPerGrid = tilesInfo.TileWidth * tilesInfo.TileHeight; + var tileDuration = (decimal)tilesInfo.Interval / 1000; + var tileGridCount = (int)Math.Ceiling((decimal)tilesInfo.TileCount / tilesPerGrid); + + builder.AppendLine("#EXTM3U"); + builder.Append("#EXT-X-TARGETDURATION:").AppendLine(tileGridCount.ToString(CultureInfo.InvariantCulture)); + builder.AppendLine("#EXT-X-VERSION:7"); + builder.AppendLine("#EXT-X-MEDIA-SEQUENCE:1"); + builder.AppendLine("#EXT-X-PLAYLIST-TYPE:VOD"); + builder.AppendLine("#EXT-X-IMAGES-ONLY"); + + for (int i = 0; i < tileGridCount; i++) + { + // All tile grids before the last one must contain full amount of tiles. + // The final grid will be 0 < count <= maxTiles + if (i == tileGridCount - 1) + { + tilesPerGrid = tilesInfo.TileCount - (i * tilesPerGrid); + } + + var infDuration = tileDuration * tilesPerGrid; + var url = string.Format( + CultureInfo.InvariantCulture, + urlFormat, + mediaSourceId, + width.ToString(CultureInfo.InvariantCulture), + i.ToString(CultureInfo.InvariantCulture), + _httpContextAccessor.HttpContext.User.GetToken()); + + // EXTINF + builder.Append("#EXTINF:").Append(string.Format(CultureInfo.InvariantCulture, decimalFormat, infDuration)) + .AppendLine(","); + + // EXT-X-TILES + builder.Append("#EXT-X-TILES:RESOLUTION=").Append(resolution).Append(",LAYOUT=").Append(layout).Append(",DURATION=") + .AppendLine(string.Format(CultureInfo.InvariantCulture, decimalFormat, tileDuration)); + + // URL + builder.AppendLine(url); + } + + builder.AppendLine("#EXT-X-ENDLIST"); + return new FileContentResult(Encoding.UTF8.GetBytes(builder.ToString()), MimeTypes.GetMimeType("playlist.m3u8")); + } + } + + return new FileContentResult(Array.Empty<byte>(), MimeTypes.GetMimeType("playlist.m3u8")); + } + private async Task<ActionResult> GetMasterPlaylistInternal( StreamingRequestDto streamingRequest, bool isHeadRequest, @@ -299,6 +380,13 @@ public class DynamicHlsHelper AppendPlaylist(builder, state, variantUrl, newBitrate, subtitleGroup); } + if (!isLiveStream && (state.VideoRequest?.EnableTrickplay).GetValueOrDefault(false)) + { + var sourceId = Guid.Parse(state.Request.MediaSourceId); + var tilesResolutions = _trickplayManager.GetTilesResolutions(sourceId); + AddTrickplay(state, tilesResolutions, builder, _httpContextAccessor.HttpContext.User); + } + return new FileContentResult(Encoding.UTF8.GetBytes(builder.ToString()), MimeTypes.GetMimeType("playlist.m3u8")); } @@ -528,6 +616,41 @@ public class DynamicHlsHelper } /// <summary> + /// Appends EXT-X-IMAGE-STREAM-INF playlists for each available trickplay resolution. + /// </summary> + /// <param name="state">StreamState of the current stream.</param> + /// <param name="tilesResolutions">Dictionary of widths to corresponding tiles info.</param> + /// <param name="builder">StringBuilder to append the field to.</param> + /// <param name="user">Http user context.</param> + private void AddTrickplay(StreamState state, Dictionary<int, TrickplayTilesInfo> tilesResolutions, StringBuilder builder, ClaimsPrincipal user) + { + const string playlistFormat = "#EXT-X-IMAGE-STREAM-INF:BANDWIDTH={0},RESOLUTION={1}x{2},CODECS=\"jpeg\",URI=\"{3}\""; + + foreach (var resolution in tilesResolutions) + { + var width = resolution.Key; + var tilesInfo = resolution.Value; + + var url = string.Format( + CultureInfo.InvariantCulture, + "tiles.m3u8?Width={0}&MediaSourceId={1}&api_key={2}", + width.ToString(CultureInfo.InvariantCulture), + state.Request.MediaSourceId, + user.GetToken()); + + var line = string.Format( + CultureInfo.InvariantCulture, + playlistFormat, + tilesInfo.Bandwidth.ToString(CultureInfo.InvariantCulture), + tilesInfo.Width.ToString(CultureInfo.InvariantCulture), + tilesInfo.Height.ToString(CultureInfo.InvariantCulture), + url); + + builder.AppendLine(line); + } + } + + /// <summary> /// Get the H.26X level of the output video stream. /// </summary> /// <param name="state">StreamState of the current stream.</param> |