505 lines
25 KiB
C#
505 lines
25 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.Globalization;
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using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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using Jellyfin.Api.Constants;
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using Jellyfin.Api.Helpers;
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using Jellyfin.Api.Models.PlaybackDtos;
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using Jellyfin.Api.Models.StreamingDtos;
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using MediaBrowser.Common.Configuration;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Devices;
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using MediaBrowser.Controller.Dlna;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.MediaEncoding;
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using MediaBrowser.Controller.Net;
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using MediaBrowser.Model.Configuration;
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using MediaBrowser.Model.Dlna;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Net;
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Logging;
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namespace Jellyfin.Api.Controllers
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{
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/// <summary>
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/// The video hls controller.
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/// </summary>
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[Route("")]
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[Authorize(Policy = Policies.DefaultAuthorization)]
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public class VideoHlsController : BaseJellyfinApiController
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{
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private const string DefaultEncoderPreset = "superfast";
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private const TranscodingJobType TranscodingJobType = MediaBrowser.Controller.MediaEncoding.TranscodingJobType.Hls;
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private readonly EncodingHelper _encodingHelper;
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private readonly IDlnaManager _dlnaManager;
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private readonly IAuthorizationContext _authContext;
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private readonly IUserManager _userManager;
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private readonly ILibraryManager _libraryManager;
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private readonly IMediaSourceManager _mediaSourceManager;
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private readonly IServerConfigurationManager _serverConfigurationManager;
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private readonly IMediaEncoder _mediaEncoder;
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private readonly IFileSystem _fileSystem;
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private readonly ISubtitleEncoder _subtitleEncoder;
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private readonly IConfiguration _configuration;
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private readonly IDeviceManager _deviceManager;
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private readonly TranscodingJobHelper _transcodingJobHelper;
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private readonly ILogger<VideoHlsController> _logger;
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private readonly EncodingOptions _encodingOptions;
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/// <summary>
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/// Initializes a new instance of the <see cref="VideoHlsController"/> class.
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/// </summary>
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/// <param name="mediaEncoder">Instance of the <see cref="IMediaEncoder"/> interface.</param>
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/// <param name="fileSystem">Instance of the <see cref="IFileSystem"/> interface.</param>
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/// <param name="subtitleEncoder">Instance of the <see cref="ISubtitleEncoder"/> interface.</param>
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/// <param name="configuration">Instance of the <see cref="IConfiguration"/> interface.</param>
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/// <param name="dlnaManager">Instance of the <see cref="IDlnaManager"/> interface.</param>
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/// <param name="userManger">Instance of the <see cref="IUserManager"/> interface.</param>
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/// <param name="authorizationContext">Instance of the <see cref="IAuthorizationContext"/> interface.</param>
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/// <param name="libraryManager">Instance of the <see cref="ILibraryManager"/> interface.</param>
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/// <param name="mediaSourceManager">Instance of the <see cref="IMediaSourceManager"/> interface.</param>
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/// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</param>
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/// <param name="deviceManager">Instance of the <see cref="IDeviceManager"/> interface.</param>
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/// <param name="transcodingJobHelper">The <see cref="TranscodingJobHelper"/> singleton.</param>
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/// <param name="logger">Instance of the <see cref="ILogger{VideoHlsController}"/>.</param>
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public VideoHlsController(
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IMediaEncoder mediaEncoder,
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IFileSystem fileSystem,
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ISubtitleEncoder subtitleEncoder,
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IConfiguration configuration,
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IDlnaManager dlnaManager,
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IUserManager userManger,
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IAuthorizationContext authorizationContext,
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ILibraryManager libraryManager,
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IMediaSourceManager mediaSourceManager,
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IServerConfigurationManager serverConfigurationManager,
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IDeviceManager deviceManager,
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TranscodingJobHelper transcodingJobHelper,
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ILogger<VideoHlsController> logger)
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{
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_encodingHelper = new EncodingHelper(mediaEncoder, fileSystem, subtitleEncoder, configuration);
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_dlnaManager = dlnaManager;
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_authContext = authorizationContext;
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_userManager = userManger;
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_libraryManager = libraryManager;
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_mediaSourceManager = mediaSourceManager;
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_serverConfigurationManager = serverConfigurationManager;
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_mediaEncoder = mediaEncoder;
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_fileSystem = fileSystem;
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_subtitleEncoder = subtitleEncoder;
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_configuration = configuration;
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_deviceManager = deviceManager;
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_transcodingJobHelper = transcodingJobHelper;
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_logger = logger;
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_encodingOptions = serverConfigurationManager.GetEncodingOptions();
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}
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/// <summary>
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/// Gets a hls live stream.
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/// </summary>
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/// <param name="itemId">The item id.</param>
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/// <param name="container">The audio container.</param>
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/// <param name="static">Optional. If true, the original file will be streamed statically without any encoding. Use either no url extension or the original file extension. true/false.</param>
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/// <param name="params">The streaming parameters.</param>
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/// <param name="tag">The tag.</param>
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/// <param name="deviceProfileId">Optional. The dlna device profile id to utilize.</param>
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/// <param name="playSessionId">The play session id.</param>
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/// <param name="segmentContainer">The segment container.</param>
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/// <param name="segmentLength">The segment lenght.</param>
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/// <param name="minSegments">The minimum number of segments.</param>
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/// <param name="mediaSourceId">The media version id, if playing an alternate version.</param>
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/// <param name="deviceId">The device id of the client requesting. Used to stop encoding processes when needed.</param>
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/// <param name="audioCodec">Optional. Specify a audio codec to encode to, e.g. mp3. If omitted the server will auto-select using the url's extension. Options: aac, mp3, vorbis, wma.</param>
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/// <param name="enableAutoStreamCopy">Whether or not to allow automatic stream copy if requested values match the original source. Defaults to true.</param>
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/// <param name="allowVideoStreamCopy">Whether or not to allow copying of the video stream url.</param>
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/// <param name="allowAudioStreamCopy">Whether or not to allow copying of the audio stream url.</param>
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/// <param name="breakOnNonKeyFrames">Optional. Whether to break on non key frames.</param>
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/// <param name="audioSampleRate">Optional. Specify a specific audio sample rate, e.g. 44100.</param>
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/// <param name="maxAudioBitDepth">Optional. The maximum audio bit depth.</param>
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/// <param name="audioBitRate">Optional. Specify an audio bitrate to encode to, e.g. 128000. If omitted this will be left to encoder defaults.</param>
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/// <param name="audioChannels">Optional. Specify a specific number of audio channels to encode to, e.g. 2.</param>
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/// <param name="maxAudioChannels">Optional. Specify a maximum number of audio channels to encode to, e.g. 2.</param>
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/// <param name="profile">Optional. Specify a specific an encoder profile (varies by encoder), e.g. main, baseline, high.</param>
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/// <param name="level">Optional. Specify a level for the encoder profile (varies by encoder), e.g. 3, 3.1.</param>
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/// <param name="framerate">Optional. A specific video framerate to encode to, e.g. 23.976. Generally this should be omitted unless the device has specific requirements.</param>
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/// <param name="maxFramerate">Optional. A specific maximum video framerate to encode to, e.g. 23.976. Generally this should be omitted unless the device has specific requirements.</param>
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/// <param name="copyTimestamps">Whether or not to copy timestamps when transcoding with an offset. Defaults to false.</param>
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/// <param name="startTimeTicks">Optional. Specify a starting offset, in ticks. 1 tick = 10000 ms.</param>
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/// <param name="width">Optional. The fixed horizontal resolution of the encoded video.</param>
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/// <param name="height">Optional. The fixed vertical resolution of the encoded video.</param>
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/// <param name="videoBitRate">Optional. Specify a video bitrate to encode to, e.g. 500000. If omitted this will be left to encoder defaults.</param>
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/// <param name="subtitleStreamIndex">Optional. The index of the subtitle stream to use. If omitted no subtitles will be used.</param>
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/// <param name="subtitleMethod">Optional. Specify the subtitle delivery method.</param>
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/// <param name="maxRefFrames">Optional.</param>
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/// <param name="maxVideoBitDepth">Optional. The maximum video bit depth.</param>
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/// <param name="requireAvc">Optional. Whether to require avc.</param>
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/// <param name="deInterlace">Optional. Whether to deinterlace the video.</param>
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/// <param name="requireNonAnamorphic">Optional. Whether to require a non anamporphic stream.</param>
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/// <param name="transcodingMaxAudioChannels">Optional. The maximum number of audio channels to transcode.</param>
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/// <param name="cpuCoreLimit">Optional. The limit of how many cpu cores to use.</param>
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/// <param name="liveStreamId">The live stream id.</param>
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/// <param name="enableMpegtsM2TsMode">Optional. Whether to enable the MpegtsM2Ts mode.</param>
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/// <param name="videoCodec">Optional. Specify a video codec to encode to, e.g. h264. If omitted the server will auto-select using the url's extension. Options: h265, h264, mpeg4, theora, vpx, wmv.</param>
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/// <param name="subtitleCodec">Optional. Specify a subtitle codec to encode to.</param>
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/// <param name="transcodingReasons">Optional. The transcoding reason.</param>
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/// <param name="audioStreamIndex">Optional. The index of the audio stream to use. If omitted the first audio stream will be used.</param>
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/// <param name="videoStreamIndex">Optional. The index of the video stream to use. If omitted the first video stream will be used.</param>
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/// <param name="context">Optional. The <see cref="EncodingContext"/>.</param>
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/// <param name="streamOptions">Optional. The streaming options.</param>
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/// <param name="maxWidth">Optional. The max width.</param>
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/// <param name="maxHeight">Optional. The max height.</param>
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/// <param name="enableSubtitlesInManifest">Optional. Whether to enable subtitles in the manifest.</param>
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/// <response code="200">Hls live stream retrieved.</response>
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/// <returns>A <see cref="FileResult"/> containing the hls file.</returns>
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[HttpGet("Videos/{itemId}/live.m3u8")]
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[ProducesResponseType(StatusCodes.Status200OK)]
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public async Task<ActionResult> GetLiveHlsStream(
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[FromRoute, Required] Guid itemId,
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[FromQuery] string? container,
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[FromQuery] bool? @static,
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[FromQuery] string? @params,
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[FromQuery] string? tag,
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[FromQuery] string? deviceProfileId,
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[FromQuery] string? playSessionId,
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[FromQuery] string? segmentContainer,
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[FromQuery] int? segmentLength,
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[FromQuery] int? minSegments,
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[FromQuery] string? mediaSourceId,
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[FromQuery] string? deviceId,
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[FromQuery] string? audioCodec,
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[FromQuery] bool? enableAutoStreamCopy,
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[FromQuery] bool? allowVideoStreamCopy,
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[FromQuery] bool? allowAudioStreamCopy,
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[FromQuery] bool? breakOnNonKeyFrames,
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[FromQuery] int? audioSampleRate,
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[FromQuery] int? maxAudioBitDepth,
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[FromQuery] int? audioBitRate,
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[FromQuery] int? audioChannels,
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[FromQuery] int? maxAudioChannels,
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[FromQuery] string? profile,
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[FromQuery] string? level,
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[FromQuery] float? framerate,
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[FromQuery] float? maxFramerate,
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[FromQuery] bool? copyTimestamps,
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[FromQuery] long? startTimeTicks,
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[FromQuery] int? width,
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[FromQuery] int? height,
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[FromQuery] int? videoBitRate,
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[FromQuery] int? subtitleStreamIndex,
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[FromQuery] SubtitleDeliveryMethod subtitleMethod,
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[FromQuery] int? maxRefFrames,
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[FromQuery] int? maxVideoBitDepth,
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[FromQuery] bool? requireAvc,
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[FromQuery] bool? deInterlace,
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[FromQuery] bool? requireNonAnamorphic,
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[FromQuery] int? transcodingMaxAudioChannels,
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[FromQuery] int? cpuCoreLimit,
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[FromQuery] string? liveStreamId,
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[FromQuery] bool? enableMpegtsM2TsMode,
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[FromQuery] string? videoCodec,
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[FromQuery] string? subtitleCodec,
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[FromQuery] string? transcodingReasons,
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[FromQuery] int? audioStreamIndex,
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[FromQuery] int? videoStreamIndex,
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[FromQuery] EncodingContext context,
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[FromQuery] Dictionary<string, string> streamOptions,
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[FromQuery] int? maxWidth,
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[FromQuery] int? maxHeight,
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[FromQuery] bool? enableSubtitlesInManifest)
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{
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VideoRequestDto streamingRequest = new VideoRequestDto
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{
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Id = itemId,
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Container = container,
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Static = @static ?? true,
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Params = @params,
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Tag = tag,
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DeviceProfileId = deviceProfileId,
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PlaySessionId = playSessionId,
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SegmentContainer = segmentContainer,
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SegmentLength = segmentLength,
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MinSegments = minSegments,
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MediaSourceId = mediaSourceId,
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DeviceId = deviceId,
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AudioCodec = audioCodec,
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EnableAutoStreamCopy = enableAutoStreamCopy ?? true,
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AllowAudioStreamCopy = allowAudioStreamCopy ?? true,
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AllowVideoStreamCopy = allowVideoStreamCopy ?? true,
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BreakOnNonKeyFrames = breakOnNonKeyFrames ?? false,
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AudioSampleRate = audioSampleRate,
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MaxAudioChannels = maxAudioChannels,
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AudioBitRate = audioBitRate,
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MaxAudioBitDepth = maxAudioBitDepth,
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AudioChannels = audioChannels,
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Profile = profile,
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Level = level,
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Framerate = framerate,
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MaxFramerate = maxFramerate,
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CopyTimestamps = copyTimestamps ?? true,
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StartTimeTicks = startTimeTicks,
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Width = width,
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Height = height,
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VideoBitRate = videoBitRate,
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SubtitleStreamIndex = subtitleStreamIndex,
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SubtitleMethod = subtitleMethod,
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MaxRefFrames = maxRefFrames,
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MaxVideoBitDepth = maxVideoBitDepth,
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RequireAvc = requireAvc ?? true,
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DeInterlace = deInterlace ?? true,
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RequireNonAnamorphic = requireNonAnamorphic ?? true,
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TranscodingMaxAudioChannels = transcodingMaxAudioChannels,
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CpuCoreLimit = cpuCoreLimit,
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LiveStreamId = liveStreamId,
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EnableMpegtsM2TsMode = enableMpegtsM2TsMode ?? true,
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VideoCodec = videoCodec,
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SubtitleCodec = subtitleCodec,
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TranscodeReasons = transcodingReasons,
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AudioStreamIndex = audioStreamIndex,
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VideoStreamIndex = videoStreamIndex,
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Context = context,
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StreamOptions = streamOptions,
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MaxHeight = maxHeight,
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MaxWidth = maxWidth,
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EnableSubtitlesInManifest = enableSubtitlesInManifest ?? true
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};
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var cancellationTokenSource = new CancellationTokenSource();
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using var state = await StreamingHelpers.GetStreamingState(
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streamingRequest,
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Request,
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_authContext,
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_mediaSourceManager,
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_userManager,
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_libraryManager,
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_serverConfigurationManager,
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_mediaEncoder,
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_fileSystem,
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_subtitleEncoder,
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_configuration,
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_dlnaManager,
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_deviceManager,
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_transcodingJobHelper,
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TranscodingJobType,
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cancellationTokenSource.Token)
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.ConfigureAwait(false);
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TranscodingJobDto? job = null;
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var playlist = state.OutputFilePath;
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if (!System.IO.File.Exists(playlist))
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{
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var transcodingLock = _transcodingJobHelper.GetTranscodingLock(playlist);
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await transcodingLock.WaitAsync(cancellationTokenSource.Token).ConfigureAwait(false);
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try
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{
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if (!System.IO.File.Exists(playlist))
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{
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// If the playlist doesn't already exist, startup ffmpeg
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try
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{
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job = await _transcodingJobHelper.StartFfMpeg(
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state,
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playlist,
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GetCommandLineArguments(playlist, state),
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Request,
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TranscodingJobType,
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cancellationTokenSource)
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.ConfigureAwait(false);
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job.IsLiveOutput = true;
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}
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catch
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{
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state.Dispose();
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throw;
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}
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minSegments = state.MinSegments;
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if (minSegments > 0)
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{
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await HlsHelpers.WaitForMinimumSegmentCount(playlist, minSegments, _logger, cancellationTokenSource.Token).ConfigureAwait(false);
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}
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}
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}
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finally
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{
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transcodingLock.Release();
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}
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}
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job ??= _transcodingJobHelper.OnTranscodeBeginRequest(playlist, TranscodingJobType);
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if (job != null)
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{
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_transcodingJobHelper.OnTranscodeEndRequest(job);
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}
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var playlistText = HlsHelpers.GetLivePlaylistText(playlist, state.SegmentLength);
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return Content(playlistText, MimeTypes.GetMimeType("playlist.m3u8"));
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}
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/// <summary>
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/// Gets the command line arguments for ffmpeg.
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/// </summary>
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/// <param name="outputPath">The output path of the file.</param>
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/// <param name="state">The <see cref="StreamState"/>.</param>
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/// <returns>The command line arguments as a string.</returns>
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private string GetCommandLineArguments(string outputPath, StreamState state)
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{
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var videoCodec = _encodingHelper.GetVideoEncoder(state, _encodingOptions);
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var threads = _encodingHelper.GetNumberOfThreads(state, _encodingOptions, videoCodec);
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var inputModifier = _encodingHelper.GetInputModifier(state, _encodingOptions);
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var format = !string.IsNullOrWhiteSpace(state.Request.SegmentContainer) ? "." + state.Request.SegmentContainer : ".ts";
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var outputTsArg = Path.Combine(Path.GetDirectoryName(outputPath), Path.GetFileNameWithoutExtension(outputPath)) + "%d" + format;
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var segmentFormat = format.TrimStart('.');
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if (string.Equals(segmentFormat, "ts", StringComparison.OrdinalIgnoreCase))
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{
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segmentFormat = "mpegts";
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}
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var baseUrlParam = string.Format(
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CultureInfo.InvariantCulture,
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"\"hls{0}\"",
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Path.GetFileNameWithoutExtension(outputPath));
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return string.Format(
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CultureInfo.InvariantCulture,
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"{0} {1} -map_metadata -1 -map_chapters -1 -threads {2} {3} {4} {5} -f segment -max_delay 5000000 -avoid_negative_ts disabled -start_at_zero -segment_time {6} {7} -individual_header_trailer 0 -segment_format {8} -segment_list_entry_prefix {9} -segment_list_type m3u8 -segment_start_number 0 -segment_list \"{10}\" -y \"{11}\"",
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inputModifier,
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_encodingHelper.GetInputArgument(state, _encodingOptions),
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threads,
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_encodingHelper.GetMapArgs(state),
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GetVideoArguments(state),
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GetAudioArguments(state),
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state.SegmentLength.ToString(CultureInfo.InvariantCulture),
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string.Empty,
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segmentFormat,
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baseUrlParam,
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outputPath,
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outputTsArg)
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.Trim();
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}
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/// <summary>
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/// Gets the audio arguments for transcoding.
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/// </summary>
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/// <param name="state">The <see cref="StreamState"/>.</param>
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/// <returns>The command line arguments for audio transcoding.</returns>
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private string GetAudioArguments(StreamState state)
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{
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var codec = _encodingHelper.GetAudioEncoder(state);
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if (EncodingHelper.IsCopyCodec(codec))
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{
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return "-codec:a:0 copy";
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}
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var args = "-codec:a:0 " + codec;
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var channels = state.OutputAudioChannels;
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if (channels.HasValue)
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{
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args += " -ac " + channels.Value;
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}
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var bitrate = state.OutputAudioBitrate;
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if (bitrate.HasValue)
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{
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args += " -ab " + bitrate.Value.ToString(CultureInfo.InvariantCulture);
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}
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if (state.OutputAudioSampleRate.HasValue)
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{
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args += " -ar " + state.OutputAudioSampleRate.Value.ToString(CultureInfo.InvariantCulture);
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}
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args += " " + _encodingHelper.GetAudioFilterParam(state, _encodingOptions, true);
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return args;
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}
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/// <summary>
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/// Gets the video arguments for transcoding.
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/// </summary>
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/// <param name="state">The <see cref="StreamState"/>.</param>
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/// <returns>The command line arguments for video transcoding.</returns>
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private string GetVideoArguments(StreamState state)
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{
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if (!state.IsOutputVideo)
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{
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return string.Empty;
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}
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var codec = _encodingHelper.GetVideoEncoder(state, _encodingOptions);
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var args = "-codec:v:0 " + codec;
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// if (state.EnableMpegtsM2TsMode)
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// {
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// args += " -mpegts_m2ts_mode 1";
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// }
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// See if we can save come cpu cycles by avoiding encoding
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if (codec.Equals("copy", StringComparison.OrdinalIgnoreCase))
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{
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// if h264_mp4toannexb is ever added, do not use it for live tv
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if (state.VideoStream != null &&
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!string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
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{
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string bitStreamArgs = _encodingHelper.GetBitStreamArgs(state.VideoStream);
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if (!string.IsNullOrEmpty(bitStreamArgs))
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{
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args += " " + bitStreamArgs;
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}
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}
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}
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else
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{
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var keyFrameArg = string.Format(
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CultureInfo.InvariantCulture,
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" -force_key_frames \"expr:gte(t,n_forced*{0})\"",
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state.SegmentLength.ToString(CultureInfo.InvariantCulture));
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var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
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args += " " + _encodingHelper.GetVideoQualityParam(state, codec, _encodingOptions, DefaultEncoderPreset) + keyFrameArg;
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// Add resolution params, if specified
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if (!hasGraphicalSubs)
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{
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args += _encodingHelper.GetOutputSizeParam(state, _encodingOptions, codec);
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}
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// This is for internal graphical subs
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if (hasGraphicalSubs)
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{
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args += _encodingHelper.GetGraphicalSubtitleParam(state, _encodingOptions, codec);
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}
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}
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args += " -flags -global_header";
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if (!string.IsNullOrEmpty(state.OutputVideoSync))
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{
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args += " -vsync " + state.OutputVideoSync;
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}
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args += _encodingHelper.GetOutputFFlags(state);
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return args;
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}
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}
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}
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