1982 lines
75 KiB
C#
1982 lines
75 KiB
C#
using MediaBrowser.Common.Extensions;
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using MediaBrowser.Common.IO;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Dlna;
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using MediaBrowser.Controller.Dto;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.LiveTv;
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using MediaBrowser.Controller.MediaEncoding;
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using MediaBrowser.Controller.Persistence;
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using MediaBrowser.Model.Configuration;
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using MediaBrowser.Model.Dlna;
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using MediaBrowser.Model.Drawing;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Library;
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using MediaBrowser.Model.LiveTv;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Api.Playback
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{
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/// <summary>
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/// Class BaseStreamingService
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/// </summary>
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public abstract class BaseStreamingService : BaseApiService
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{
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/// <summary>
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/// Gets or sets the application paths.
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/// </summary>
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/// <value>The application paths.</value>
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protected IServerConfigurationManager ServerConfigurationManager { get; private set; }
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/// <summary>
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/// Gets or sets the user manager.
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/// </summary>
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/// <value>The user manager.</value>
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protected IUserManager UserManager { get; private set; }
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/// <summary>
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/// Gets or sets the library manager.
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/// </summary>
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/// <value>The library manager.</value>
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protected ILibraryManager LibraryManager { get; private set; }
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/// <summary>
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/// Gets or sets the iso manager.
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/// </summary>
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/// <value>The iso manager.</value>
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protected IIsoManager IsoManager { get; private set; }
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/// <summary>
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/// Gets or sets the media encoder.
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/// </summary>
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/// <value>The media encoder.</value>
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protected IMediaEncoder MediaEncoder { get; private set; }
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protected IEncodingManager EncodingManager { get; private set; }
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protected IDtoService DtoService { get; private set; }
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protected IFileSystem FileSystem { get; private set; }
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protected IItemRepository ItemRepository { get; private set; }
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protected ILiveTvManager LiveTvManager { get; private set; }
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protected IDlnaManager DlnaManager { get; private set; }
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/// <summary>
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/// Initializes a new instance of the <see cref="BaseStreamingService" /> class.
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/// </summary>
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/// <param name="serverConfig">The server configuration.</param>
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/// <param name="userManager">The user manager.</param>
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/// <param name="libraryManager">The library manager.</param>
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/// <param name="isoManager">The iso manager.</param>
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/// <param name="mediaEncoder">The media encoder.</param>
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/// <param name="dtoService">The dto service.</param>
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/// <param name="fileSystem">The file system.</param>
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/// <param name="itemRepository">The item repository.</param>
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protected BaseStreamingService(IServerConfigurationManager serverConfig, IUserManager userManager, ILibraryManager libraryManager, IIsoManager isoManager, IMediaEncoder mediaEncoder, IDtoService dtoService, IFileSystem fileSystem, IItemRepository itemRepository, ILiveTvManager liveTvManager, IEncodingManager encodingManager, IDlnaManager dlnaManager)
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{
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DlnaManager = dlnaManager;
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EncodingManager = encodingManager;
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LiveTvManager = liveTvManager;
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ItemRepository = itemRepository;
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FileSystem = fileSystem;
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DtoService = dtoService;
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ServerConfigurationManager = serverConfig;
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UserManager = userManager;
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LibraryManager = libraryManager;
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IsoManager = isoManager;
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MediaEncoder = mediaEncoder;
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}
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/// <summary>
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/// Gets the command line arguments.
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/// </summary>
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/// <param name="outputPath">The output path.</param>
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/// <param name="state">The state.</param>
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/// <param name="performSubtitleConversions">if set to <c>true</c> [perform subtitle conversions].</param>
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/// <returns>System.String.</returns>
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protected abstract string GetCommandLineArguments(string outputPath, StreamState state, bool performSubtitleConversions);
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/// <summary>
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/// Gets the type of the transcoding job.
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/// </summary>
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/// <value>The type of the transcoding job.</value>
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protected abstract TranscodingJobType TranscodingJobType { get; }
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/// <summary>
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/// Gets the output file extension.
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/// </summary>
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/// <param name="state">The state.</param>
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/// <returns>System.String.</returns>
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protected virtual string GetOutputFileExtension(StreamState state)
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{
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return Path.GetExtension(state.RequestedUrl);
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}
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/// <summary>
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/// Gets the output file path.
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/// </summary>
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/// <param name="state">The state.</param>
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/// <returns>System.String.</returns>
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protected virtual string GetOutputFilePath(StreamState state)
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{
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var folder = ServerConfigurationManager.ApplicationPaths.TranscodingTempPath;
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var outputFileExtension = GetOutputFileExtension(state);
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return Path.Combine(folder, GetCommandLineArguments("dummy\\dummy", state, false).GetMD5() + (outputFileExtension ?? string.Empty).ToLower());
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}
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protected readonly CultureInfo UsCulture = new CultureInfo("en-US");
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/// <summary>
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/// The fast seek offset seconds
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/// </summary>
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private const int FastSeekOffsetSeconds = 1;
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/// <summary>
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/// Gets the fast seek command line parameter.
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/// </summary>
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/// <param name="request">The request.</param>
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/// <returns>System.String.</returns>
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/// <value>The fast seek command line parameter.</value>
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protected string GetFastSeekCommandLineParameter(StreamRequest request)
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{
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var time = request.StartTimeTicks;
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if (time.HasValue)
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{
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var seconds = TimeSpan.FromTicks(time.Value).TotalSeconds;
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if (seconds > 0)
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{
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return string.Format("-ss {0}", seconds.ToString(UsCulture));
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}
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}
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return string.Empty;
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}
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/// <summary>
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/// Gets the slow seek command line parameter.
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/// </summary>
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/// <param name="request">The request.</param>
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/// <returns>System.String.</returns>
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/// <value>The slow seek command line parameter.</value>
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protected string GetSlowSeekCommandLineParameter(StreamRequest request)
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{
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return string.Empty;
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}
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/// <summary>
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/// Gets the map args.
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/// </summary>
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/// <param name="state">The state.</param>
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/// <returns>System.String.</returns>
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protected virtual string GetMapArgs(StreamState state)
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{
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var args = string.Empty;
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if (state.IsRemote || !state.HasMediaStreams)
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{
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return string.Empty;
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}
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if (state.VideoStream != null)
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{
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args += string.Format("-map 0:{0}", state.VideoStream.Index);
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}
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else
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{
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args += "-map -0:v";
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}
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if (state.AudioStream != null)
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{
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args += string.Format(" -map 0:{0}", state.AudioStream.Index);
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}
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else
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{
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args += " -map -0:a";
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}
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if (state.SubtitleStream == null)
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{
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args += " -map -0:s";
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}
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return args;
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}
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/// <summary>
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/// Determines which stream will be used for playback
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/// </summary>
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/// <param name="allStream">All stream.</param>
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/// <param name="desiredIndex">Index of the desired.</param>
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/// <param name="type">The type.</param>
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/// <param name="returnFirstIfNoIndex">if set to <c>true</c> [return first if no index].</param>
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/// <returns>MediaStream.</returns>
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private MediaStream GetMediaStream(IEnumerable<MediaStream> allStream, int? desiredIndex, MediaStreamType type, bool returnFirstIfNoIndex = true)
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{
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var streams = allStream.Where(s => s.Type == type).OrderBy(i => i.Index).ToList();
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if (desiredIndex.HasValue)
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{
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var stream = streams.FirstOrDefault(s => s.Index == desiredIndex.Value);
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if (stream != null)
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{
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return stream;
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}
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}
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if (type == MediaStreamType.Video)
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{
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streams = streams.Where(i => !string.Equals(i.Codec, "mjpeg", StringComparison.OrdinalIgnoreCase)).ToList();
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}
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if (returnFirstIfNoIndex && type == MediaStreamType.Audio)
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{
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return streams.FirstOrDefault(i => i.Channels.HasValue && i.Channels.Value > 0) ??
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streams.FirstOrDefault();
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}
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// Just return the first one
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return returnFirstIfNoIndex ? streams.FirstOrDefault() : null;
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}
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protected EncodingQuality GetQualitySetting()
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{
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var quality = ServerConfigurationManager.Configuration.MediaEncodingQuality;
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if (quality == EncodingQuality.Auto)
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{
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var cpuCount = Environment.ProcessorCount;
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if (cpuCount >= 4)
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{
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//return EncodingQuality.HighQuality;
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}
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return EncodingQuality.HighSpeed;
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}
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return quality;
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}
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/// <summary>
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/// Gets the number of threads.
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/// </summary>
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/// <returns>System.Int32.</returns>
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/// <exception cref="System.Exception">Unrecognized MediaEncodingQuality value.</exception>
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protected int GetNumberOfThreads(StreamState state, bool isWebm)
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{
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// Use more when this is true. -re will keep cpu usage under control
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if (state.ReadInputAtNativeFramerate)
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{
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if (isWebm)
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{
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return Math.Max(Environment.ProcessorCount - 1, 2);
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}
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return 0;
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}
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// Webm: http://www.webmproject.org/docs/encoder-parameters/
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// The decoder will usually automatically use an appropriate number of threads according to how many cores are available but it can only use multiple threads
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// for the coefficient data if the encoder selected --token-parts > 0 at encode time.
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switch (GetQualitySetting())
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{
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case EncodingQuality.HighSpeed:
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return 2;
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case EncodingQuality.HighQuality:
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return isWebm ? Math.Max(Environment.ProcessorCount - 1, 2) : 0;
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case EncodingQuality.MaxQuality:
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return isWebm ? Math.Max(Environment.ProcessorCount - 1, 2) : 0;
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default:
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throw new Exception("Unrecognized MediaEncodingQuality value.");
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}
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}
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/// <summary>
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/// Gets the video bitrate to specify on the command line
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/// </summary>
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/// <param name="state">The state.</param>
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/// <param name="videoCodec">The video codec.</param>
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/// <param name="isHls">if set to <c>true</c> [is HLS].</param>
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/// <returns>System.String.</returns>
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protected string GetVideoQualityParam(StreamState state, string videoCodec, bool isHls)
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{
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var param = string.Empty;
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var isVc1 = state.VideoStream != null &&
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string.Equals(state.VideoStream.Codec, "vc1", StringComparison.OrdinalIgnoreCase);
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var qualitySetting = GetQualitySetting();
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if (string.Equals(videoCodec, "libx264", StringComparison.OrdinalIgnoreCase))
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{
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switch (qualitySetting)
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{
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case EncodingQuality.HighSpeed:
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param = "-preset ultrafast";
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break;
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case EncodingQuality.HighQuality:
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param = "-preset superfast";
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break;
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case EncodingQuality.MaxQuality:
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param = "-preset superfast";
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break;
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}
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switch (qualitySetting)
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{
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case EncodingQuality.HighSpeed:
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param += " -crf 23";
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break;
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case EncodingQuality.HighQuality:
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param += " -crf 20";
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break;
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case EncodingQuality.MaxQuality:
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param += " -crf 18";
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break;
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}
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}
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// webm
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else if (string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase))
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{
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// Values 0-3, 0 being highest quality but slower
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var profileScore = 0;
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string crf;
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switch (qualitySetting)
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{
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case EncodingQuality.HighSpeed:
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crf = "18";
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profileScore++;
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break;
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case EncodingQuality.HighQuality:
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crf = "10";
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break;
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case EncodingQuality.MaxQuality:
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crf = "4";
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break;
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default:
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throw new ArgumentException("Unrecognized quality setting");
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}
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if (isVc1)
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{
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profileScore++;
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}
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// http://www.webmproject.org/docs/encoder-parameters/
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param = string.Format("-speed 16 -quality good -profile:v {0} -slices 8 -crf {1}",
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profileScore.ToString(UsCulture),
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crf);
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}
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else if (string.Equals(videoCodec, "mpeg4", StringComparison.OrdinalIgnoreCase))
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{
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param = "-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -bf 2";
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}
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// asf/wmv
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else if (string.Equals(videoCodec, "wmv2", StringComparison.OrdinalIgnoreCase))
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{
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param = "-qmin 2";
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}
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else if (string.Equals(videoCodec, "msmpeg4", StringComparison.OrdinalIgnoreCase))
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{
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param = "-mbd 2";
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}
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param += GetVideoBitrateParam(state, videoCodec, isHls);
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var framerate = GetFramerateParam(state);
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if (framerate.HasValue)
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{
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param += string.Format(" -r {0}", framerate.Value.ToString(UsCulture));
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}
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if (!string.IsNullOrEmpty(state.VideoSync))
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{
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param += " -vsync " + state.VideoSync;
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}
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if (!string.IsNullOrEmpty(state.VideoRequest.Profile))
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{
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param += " -profile:v " + state.VideoRequest.Profile;
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}
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if (!string.IsNullOrEmpty(state.VideoRequest.Level))
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{
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param += " -level " + state.VideoRequest.Level;
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}
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return param;
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}
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protected string GetAudioFilterParam(StreamState state, bool isHls)
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{
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var volParam = string.Empty;
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var audioSampleRate = string.Empty;
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var channels = GetNumAudioChannelsParam(state.Request, state.AudioStream);
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// Boost volume to 200% when downsampling from 6ch to 2ch
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if (channels.HasValue && channels.Value <= 2)
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{
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if (state.AudioStream != null && state.AudioStream.Channels.HasValue && state.AudioStream.Channels.Value > 5)
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{
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volParam = ",volume=2.000000";
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}
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}
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if (state.Request.AudioSampleRate.HasValue)
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{
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audioSampleRate = state.Request.AudioSampleRate.Value + ":";
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}
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var adelay = isHls ? "adelay=1," : string.Empty;
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var pts = string.Empty;
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if (state.SubtitleStream != null)
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{
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if (state.SubtitleStream.Codec.IndexOf("srt", StringComparison.OrdinalIgnoreCase) != -1 ||
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state.SubtitleStream.Codec.IndexOf("subrip", StringComparison.OrdinalIgnoreCase) != -1 ||
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string.Equals(state.SubtitleStream.Codec, "ass", StringComparison.OrdinalIgnoreCase) ||
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string.Equals(state.SubtitleStream.Codec, "ssa", StringComparison.OrdinalIgnoreCase))
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{
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var seconds = TimeSpan.FromTicks(state.Request.StartTimeTicks ?? 0).TotalSeconds;
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pts = string.Format(",asetpts=PTS-{0}/TB",
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Math.Round(seconds).ToString(UsCulture));
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}
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}
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return string.Format("-af \"{0}aresample={1}async={4}{2}{3}\"",
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adelay,
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audioSampleRate,
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volParam,
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pts,
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state.AudioSync);
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}
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/// <summary>
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/// If we're going to put a fixed size on the command line, this will calculate it
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/// </summary>
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/// <param name="state">The state.</param>
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/// <param name="outputVideoCodec">The output video codec.</param>
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/// <param name="performTextSubtitleConversion">if set to <c>true</c> [perform text subtitle conversion].</param>
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/// <returns>System.String.</returns>
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protected string GetOutputSizeParam(StreamState state, string outputVideoCodec, bool performTextSubtitleConversion)
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{
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// http://sonnati.wordpress.com/2012/10/19/ffmpeg-the-swiss-army-knife-of-internet-streaming-part-vi/
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var assSubtitleParam = string.Empty;
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var copyTsParam = string.Empty;
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var yadifParam = state.DeInterlace ? "yadif=0:-1:0," : string.Empty;
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var request = state.VideoRequest;
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if (state.SubtitleStream != null)
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{
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if (state.SubtitleStream.Codec.IndexOf("srt", StringComparison.OrdinalIgnoreCase) != -1 ||
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state.SubtitleStream.Codec.IndexOf("subrip", StringComparison.OrdinalIgnoreCase) != -1 ||
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string.Equals(state.SubtitleStream.Codec, "ass", StringComparison.OrdinalIgnoreCase) ||
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string.Equals(state.SubtitleStream.Codec, "ssa", StringComparison.OrdinalIgnoreCase))
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{
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assSubtitleParam = GetTextSubtitleParam(state, performTextSubtitleConversion);
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copyTsParam = " -copyts";
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}
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}
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// If fixed dimensions were supplied
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if (request.Width.HasValue && request.Height.HasValue)
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{
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var widthParam = request.Width.Value.ToString(UsCulture);
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var heightParam = request.Height.Value.ToString(UsCulture);
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return string.Format("{4} -vf \"{0}scale=trunc({1}/2)*2:trunc({2}/2)*2{3}\"", yadifParam, widthParam, heightParam, assSubtitleParam, copyTsParam);
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}
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// If Max dimensions were supplied, for width selects lowest even number between input width and width req size and selects lowest even number from in width*display aspect and requested size
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if (request.MaxWidth.HasValue && request.MaxHeight.HasValue)
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{
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var maxWidthParam = request.MaxWidth.Value.ToString(UsCulture);
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var maxHeightParam = request.MaxHeight.Value.ToString(UsCulture);
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return string.Format("{4} -vf \"{0}scale=trunc(min(iw\\,{1})/2)*2:trunc(min((iw/dar)\\,{2})/2)*2{3}\"", yadifParam, maxWidthParam, maxHeightParam, assSubtitleParam, copyTsParam);
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}
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var isH264Output = outputVideoCodec.Equals("libx264", StringComparison.OrdinalIgnoreCase);
|
|
|
|
// If a fixed width was requested
|
|
if (request.Width.HasValue)
|
|
{
|
|
var widthParam = request.Width.Value.ToString(UsCulture);
|
|
|
|
return isH264Output ?
|
|
string.Format("{3} -vf \"{0}scale={1}:trunc(ow/a/2)*2{2}\"", yadifParam, widthParam, assSubtitleParam, copyTsParam) :
|
|
string.Format("{3} -vf \"{0}scale={1}:-1{2}\"", yadifParam, widthParam, assSubtitleParam, copyTsParam);
|
|
}
|
|
|
|
// If a fixed height was requested
|
|
if (request.Height.HasValue)
|
|
{
|
|
var heightParam = request.Height.Value.ToString(UsCulture);
|
|
|
|
return isH264Output ?
|
|
string.Format("{3} -vf \"{0}scale=trunc(oh*a*2)/2:{1}{2}\"", yadifParam, heightParam, assSubtitleParam, copyTsParam) :
|
|
string.Format("{3} -vf \"{0}scale=-1:{1}{2}\"", yadifParam, heightParam, assSubtitleParam, copyTsParam);
|
|
}
|
|
|
|
// If a max width was requested
|
|
if (request.MaxWidth.HasValue && (!request.MaxHeight.HasValue || state.VideoStream == null))
|
|
{
|
|
var maxWidthParam = request.MaxWidth.Value.ToString(UsCulture);
|
|
|
|
return isH264Output ?
|
|
string.Format("{3} -vf \"{0}scale=min(iw\\,{1}):trunc(ow/a/2)*2{2}\"", yadifParam, maxWidthParam, assSubtitleParam, copyTsParam) :
|
|
string.Format("{3} -vf \"{0}scale=min(iw\\,{1}):-1{2}\"", yadifParam, maxWidthParam, assSubtitleParam, copyTsParam);
|
|
}
|
|
|
|
// If a max height was requested
|
|
if (request.MaxHeight.HasValue && (!request.MaxWidth.HasValue || state.VideoStream == null))
|
|
{
|
|
var maxHeightParam = request.MaxHeight.Value.ToString(UsCulture);
|
|
|
|
return isH264Output ?
|
|
string.Format("{3} -vf \"{0}scale=trunc(oh*a*2)/2:min(ih\\,{1}){2}\"", yadifParam, maxHeightParam, assSubtitleParam, copyTsParam) :
|
|
string.Format("{3} -vf \"{0}scale=-1:min(ih\\,{1}){2}\"", yadifParam, maxHeightParam, assSubtitleParam, copyTsParam);
|
|
}
|
|
|
|
if (state.VideoStream == null)
|
|
{
|
|
// No way to figure this out
|
|
return string.Empty;
|
|
}
|
|
|
|
// Need to perform calculations manually
|
|
|
|
// Try to account for bad media info
|
|
var currentHeight = state.VideoStream.Height ?? request.MaxHeight ?? request.Height ?? 0;
|
|
var currentWidth = state.VideoStream.Width ?? request.MaxWidth ?? request.Width ?? 0;
|
|
|
|
var outputSize = DrawingUtils.Resize(currentWidth, currentHeight, request.Width, request.Height, request.MaxWidth, request.MaxHeight);
|
|
|
|
// If we're encoding with libx264, it can't handle odd numbered widths or heights, so we'll have to fix that
|
|
if (isH264Output)
|
|
{
|
|
var widthParam = outputSize.Width.ToString(UsCulture);
|
|
var heightParam = outputSize.Height.ToString(UsCulture);
|
|
|
|
return string.Format("{4} -vf \"{0}scale=trunc({1}/2)*2:trunc({2}/2)*2{3}\"", yadifParam, widthParam, heightParam, assSubtitleParam, copyTsParam);
|
|
}
|
|
|
|
// Otherwise use -vf scale since ffmpeg will ensure internally that the aspect ratio is preserved
|
|
return string.Format("{3} -vf \"{0}scale={1}:-1{2}\"", yadifParam, Convert.ToInt32(outputSize.Width), assSubtitleParam, copyTsParam);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the text subtitle param.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="performConversion">if set to <c>true</c> [perform conversion].</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetTextSubtitleParam(StreamState state, bool performConversion)
|
|
{
|
|
var path = state.SubtitleStream.IsExternal ? GetConvertedAssPath(state.MediaPath, state.SubtitleStream, performConversion) :
|
|
GetExtractedAssPath(state, performConversion);
|
|
|
|
if (string.IsNullOrEmpty(path))
|
|
{
|
|
return string.Empty;
|
|
}
|
|
|
|
var seconds = TimeSpan.FromTicks(state.Request.StartTimeTicks ?? 0).TotalSeconds;
|
|
|
|
return string.Format(",ass='{0}',setpts=PTS -{1}/TB",
|
|
path.Replace('\\', '/').Replace(":/", "\\:/"),
|
|
Math.Round(seconds).ToString(UsCulture));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the extracted ass path.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="performConversion">if set to <c>true</c> [perform conversion].</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetExtractedAssPath(StreamState state, bool performConversion)
|
|
{
|
|
var path = EncodingManager.GetSubtitleCachePath(state.MediaPath, state.SubtitleStream.Index, ".ass");
|
|
|
|
if (performConversion)
|
|
{
|
|
InputType type;
|
|
|
|
var inputPath = MediaEncoderHelpers.GetInputArgument(state.MediaPath, state.IsRemote, state.VideoType, state.IsoType, null, state.PlayableStreamFileNames, out type);
|
|
|
|
try
|
|
{
|
|
var parentPath = Path.GetDirectoryName(path);
|
|
|
|
Directory.CreateDirectory(parentPath);
|
|
|
|
// Don't re-encode ass/ssa to ass because ffmpeg ass encoder fails if there's more than one ass rectangle. Affect Anime mostly.
|
|
// See https://lists.ffmpeg.org/pipermail/ffmpeg-cvslog/2013-April/063616.html
|
|
var isAssSubtitle = string.Equals(state.SubtitleStream.Codec, "ass", StringComparison.OrdinalIgnoreCase) || string.Equals(state.SubtitleStream.Codec, "ssa", StringComparison.OrdinalIgnoreCase);
|
|
|
|
var task = MediaEncoder.ExtractTextSubtitle(inputPath, type, state.SubtitleStream.Index, isAssSubtitle, path, CancellationToken.None);
|
|
|
|
Task.WaitAll(task);
|
|
}
|
|
catch
|
|
{
|
|
return null;
|
|
}
|
|
}
|
|
|
|
return path;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the converted ass path.
|
|
/// </summary>
|
|
/// <param name="mediaPath">The media path.</param>
|
|
/// <param name="subtitleStream">The subtitle stream.</param>
|
|
/// <param name="performConversion">if set to <c>true</c> [perform conversion].</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetConvertedAssPath(string mediaPath, MediaStream subtitleStream, bool performConversion)
|
|
{
|
|
var path = EncodingManager.GetSubtitleCachePath(subtitleStream.Path, ".ass");
|
|
|
|
if (performConversion)
|
|
{
|
|
try
|
|
{
|
|
var parentPath = Path.GetDirectoryName(path);
|
|
|
|
Directory.CreateDirectory(parentPath);
|
|
|
|
var task = MediaEncoder.ConvertTextSubtitleToAss(subtitleStream.Path, path, subtitleStream.Language, CancellationToken.None);
|
|
|
|
Task.WaitAll(task);
|
|
}
|
|
catch
|
|
{
|
|
return null;
|
|
}
|
|
}
|
|
|
|
return path;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the internal graphical subtitle param.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="outputVideoCodec">The output video codec.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetInternalGraphicalSubtitleParam(StreamState state, string outputVideoCodec)
|
|
{
|
|
var outputSizeParam = string.Empty;
|
|
|
|
var request = state.VideoRequest;
|
|
|
|
// Add resolution params, if specified
|
|
if (request.Width.HasValue || request.Height.HasValue || request.MaxHeight.HasValue || request.MaxWidth.HasValue)
|
|
{
|
|
outputSizeParam = GetOutputSizeParam(state, outputVideoCodec, false).TrimEnd('"');
|
|
outputSizeParam = "," + outputSizeParam.Substring(outputSizeParam.IndexOf("scale", StringComparison.OrdinalIgnoreCase));
|
|
}
|
|
|
|
var videoSizeParam = string.Empty;
|
|
|
|
if (state.VideoStream != null && state.VideoStream.Width.HasValue && state.VideoStream.Height.HasValue)
|
|
{
|
|
videoSizeParam = string.Format(",scale={0}:{1}", state.VideoStream.Width.Value.ToString(UsCulture), state.VideoStream.Height.Value.ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format(" -filter_complex \"[0:{0}]format=yuva444p{3},lut=u=128:v=128:y=gammaval(.3)[sub] ; [0:{1}] [sub] overlay{2}\"",
|
|
state.SubtitleStream.Index,
|
|
state.VideoStream.Index,
|
|
outputSizeParam,
|
|
videoSizeParam);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the probe size argument.
|
|
/// </summary>
|
|
/// <param name="mediaPath">The media path.</param>
|
|
/// <param name="isVideo">if set to <c>true</c> [is video].</param>
|
|
/// <param name="videoType">Type of the video.</param>
|
|
/// <param name="isoType">Type of the iso.</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetProbeSizeArgument(string mediaPath, bool isVideo, VideoType? videoType, IsoType? isoType)
|
|
{
|
|
var type = !isVideo ? MediaEncoderHelpers.GetInputType(null, null) :
|
|
MediaEncoderHelpers.GetInputType(videoType, isoType);
|
|
|
|
return MediaEncoder.GetProbeSizeArgument(type);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the number of audio channels to specify on the command line
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <param name="audioStream">The audio stream.</param>
|
|
/// <returns>System.Nullable{System.Int32}.</returns>
|
|
protected int? GetNumAudioChannelsParam(StreamRequest request, MediaStream audioStream)
|
|
{
|
|
if (audioStream != null)
|
|
{
|
|
var codec = request.AudioCodec ?? string.Empty;
|
|
|
|
if (audioStream.Channels > 2 && codec.IndexOf("wma", StringComparison.OrdinalIgnoreCase) != -1)
|
|
{
|
|
// wmav2 currently only supports two channel output
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
if (request.MaxAudioChannels.HasValue)
|
|
{
|
|
if (audioStream != null && audioStream.Channels.HasValue)
|
|
{
|
|
return Math.Min(request.MaxAudioChannels.Value, audioStream.Channels.Value);
|
|
}
|
|
|
|
return request.MaxAudioChannels.Value;
|
|
}
|
|
|
|
return request.AudioChannels;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines whether the specified stream is H264.
|
|
/// </summary>
|
|
/// <param name="stream">The stream.</param>
|
|
/// <returns><c>true</c> if the specified stream is H264; otherwise, <c>false</c>.</returns>
|
|
protected bool IsH264(MediaStream stream)
|
|
{
|
|
return stream.Codec.IndexOf("264", StringComparison.OrdinalIgnoreCase) != -1 ||
|
|
stream.Codec.IndexOf("avc", StringComparison.OrdinalIgnoreCase) != -1;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the name of the output audio codec
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetAudioCodec(StreamRequest request)
|
|
{
|
|
var codec = request.AudioCodec;
|
|
|
|
if (string.Equals(codec, "aac", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "aac -strict experimental";
|
|
}
|
|
if (string.Equals(codec, "mp3", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libmp3lame";
|
|
}
|
|
if (string.Equals(codec, "vorbis", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libvorbis";
|
|
}
|
|
if (string.Equals(codec, "wma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wmav2";
|
|
}
|
|
|
|
return codec.ToLower();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the name of the output video codec
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetVideoCodec(VideoStreamRequest request)
|
|
{
|
|
var codec = request.VideoCodec;
|
|
|
|
if (!string.IsNullOrEmpty(codec))
|
|
{
|
|
if (string.Equals(codec, "h264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libx264";
|
|
}
|
|
if (string.Equals(codec, "vpx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libvpx";
|
|
}
|
|
if (string.Equals(codec, "wmv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wmv2";
|
|
}
|
|
if (string.Equals(codec, "theora", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libtheora";
|
|
}
|
|
|
|
return codec.ToLower();
|
|
}
|
|
|
|
return "copy";
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the input argument.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetInputArgument(StreamState state)
|
|
{
|
|
var type = InputType.File;
|
|
|
|
var inputPath = new[] { state.MediaPath };
|
|
|
|
if (state.IsInputVideo)
|
|
{
|
|
if (!(state.VideoType == VideoType.Iso && state.IsoMount == null))
|
|
{
|
|
inputPath = MediaEncoderHelpers.GetInputArgument(state.MediaPath, state.IsRemote, state.VideoType, state.IsoType, state.IsoMount, state.PlayableStreamFileNames, out type);
|
|
}
|
|
}
|
|
|
|
return MediaEncoder.GetInputArgument(inputPath, type);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Starts the FFMPEG.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="outputPath">The output path.</param>
|
|
/// <returns>Task.</returns>
|
|
protected async Task StartFfMpeg(StreamState state, string outputPath)
|
|
{
|
|
if (!File.Exists(MediaEncoder.EncoderPath))
|
|
{
|
|
throw new InvalidOperationException("ffmpeg was not found at " + MediaEncoder.EncoderPath);
|
|
}
|
|
|
|
Directory.CreateDirectory(Path.GetDirectoryName(outputPath));
|
|
|
|
if (state.IsInputVideo && state.VideoType == VideoType.Iso && state.IsoType.HasValue && IsoManager.CanMount(state.MediaPath))
|
|
{
|
|
state.IsoMount = await IsoManager.Mount(state.MediaPath, CancellationToken.None).ConfigureAwait(false);
|
|
}
|
|
|
|
var commandLineArgs = GetCommandLineArguments(outputPath, state, true);
|
|
|
|
if (ServerConfigurationManager.Configuration.EnableDebugEncodingLogging)
|
|
{
|
|
commandLineArgs = "-loglevel debug " + commandLineArgs;
|
|
}
|
|
|
|
var process = new Process
|
|
{
|
|
StartInfo = new ProcessStartInfo
|
|
{
|
|
CreateNoWindow = true,
|
|
UseShellExecute = false,
|
|
|
|
// Must consume both stdout and stderr or deadlocks may occur
|
|
RedirectStandardOutput = true,
|
|
RedirectStandardError = true,
|
|
|
|
FileName = MediaEncoder.EncoderPath,
|
|
WorkingDirectory = Path.GetDirectoryName(MediaEncoder.EncoderPath),
|
|
Arguments = commandLineArgs,
|
|
|
|
WindowStyle = ProcessWindowStyle.Hidden,
|
|
ErrorDialog = false
|
|
},
|
|
|
|
EnableRaisingEvents = true
|
|
};
|
|
|
|
ApiEntryPoint.Instance.OnTranscodeBeginning(outputPath, TranscodingJobType, process, state.IsInputVideo, state.Request.StartTimeTicks, state.MediaPath, state.Request.DeviceId);
|
|
|
|
var commandLineLogMessage = process.StartInfo.FileName + " " + process.StartInfo.Arguments;
|
|
Logger.Info(commandLineLogMessage);
|
|
|
|
var logFilePath = Path.Combine(ServerConfigurationManager.ApplicationPaths.LogDirectoryPath, "transcode-" + Guid.NewGuid() + ".txt");
|
|
Directory.CreateDirectory(Path.GetDirectoryName(logFilePath));
|
|
|
|
// FFMpeg writes debug/error info to stderr. This is useful when debugging so let's put it in the log directory.
|
|
state.LogFileStream = FileSystem.GetFileStream(logFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, true);
|
|
|
|
var commandLineLogMessageBytes = Encoding.UTF8.GetBytes(commandLineLogMessage + Environment.NewLine + Environment.NewLine);
|
|
await state.LogFileStream.WriteAsync(commandLineLogMessageBytes, 0, commandLineLogMessageBytes.Length).ConfigureAwait(false);
|
|
|
|
process.Exited += (sender, args) => OnFfMpegProcessExited(process, state);
|
|
|
|
try
|
|
{
|
|
process.Start();
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error starting ffmpeg", ex);
|
|
|
|
ApiEntryPoint.Instance.OnTranscodeFailedToStart(outputPath, TranscodingJobType);
|
|
|
|
throw;
|
|
}
|
|
|
|
// MUST read both stdout and stderr asynchronously or a deadlock may occurr
|
|
process.BeginOutputReadLine();
|
|
|
|
#pragma warning disable 4014
|
|
// Important - don't await the log task or we won't be able to kill ffmpeg when the user stops playback
|
|
process.StandardError.BaseStream.CopyToAsync(state.LogFileStream);
|
|
#pragma warning restore 4014
|
|
|
|
// Wait for the file to exist before proceeeding
|
|
while (!File.Exists(outputPath))
|
|
{
|
|
await Task.Delay(100).ConfigureAwait(false);
|
|
}
|
|
|
|
// Allow a small amount of time to buffer a little
|
|
if (state.IsInputVideo)
|
|
{
|
|
await Task.Delay(500).ConfigureAwait(false);
|
|
}
|
|
|
|
// This is arbitrary, but add a little buffer time when internet streaming
|
|
if (state.IsRemote)
|
|
{
|
|
await Task.Delay(3000).ConfigureAwait(false);
|
|
}
|
|
}
|
|
|
|
protected int? GetVideoBitrateParamValue(StreamState state)
|
|
{
|
|
var bitrate = state.VideoRequest.VideoBitRate;
|
|
|
|
if (state.VideoStream != null)
|
|
{
|
|
var isUpscaling = state.VideoRequest.Height.HasValue && state.VideoStream.Height.HasValue &&
|
|
state.VideoRequest.Height.Value > state.VideoStream.Height.Value;
|
|
|
|
if (state.VideoRequest.Width.HasValue && state.VideoStream.Width.HasValue &&
|
|
state.VideoRequest.Width.Value > state.VideoStream.Width.Value)
|
|
{
|
|
isUpscaling = true;
|
|
}
|
|
|
|
// Don't allow bitrate increases unless upscaling
|
|
if (!isUpscaling)
|
|
{
|
|
if (bitrate.HasValue && state.VideoStream.BitRate.HasValue)
|
|
{
|
|
bitrate = Math.Min(bitrate.Value, state.VideoStream.BitRate.Value);
|
|
}
|
|
}
|
|
}
|
|
|
|
return bitrate;
|
|
}
|
|
|
|
protected string GetVideoBitrateParam(StreamState state, string videoCodec, bool isHls)
|
|
{
|
|
var bitrate = GetVideoBitrateParamValue(state);
|
|
|
|
if (bitrate.HasValue)
|
|
{
|
|
var hasFixedResolution = state.VideoRequest.HasFixedResolution;
|
|
|
|
if (string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
if (hasFixedResolution)
|
|
{
|
|
return string.Format(" -minrate:v ({0}*.90) -maxrate:v ({0}*1.10) -bufsize:v {0} -b:v {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
// With vpx when crf is used, b:v becomes a max rate
|
|
// https://trac.ffmpeg.org/wiki/vpxEncodingGuide. But higher bitrate source files -b:v causes judder so limite the bitrate but dont allow it to "saturate" the bitrate. So dont contrain it down just up.
|
|
return string.Format(" -maxrate:v {0} -bufsize:v ({0}*2) -b:v {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
if (string.Equals(videoCodec, "msmpeg4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return string.Format(" -b:v {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
// H264
|
|
if (hasFixedResolution)
|
|
{
|
|
if (isHls)
|
|
{
|
|
return string.Format(" -b:v {0} -maxrate ({0}*.80) -bufsize {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format(" -b:v {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format(" -maxrate {0} -bufsize {1}",
|
|
bitrate.Value.ToString(UsCulture),
|
|
(bitrate.Value * 2).ToString(UsCulture));
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
protected int? GetAudioBitrateParam(StreamState state)
|
|
{
|
|
if (state.Request.AudioBitRate.HasValue)
|
|
{
|
|
// Make sure we don't request a bitrate higher than the source
|
|
var currentBitrate = state.AudioStream == null ? state.Request.AudioBitRate.Value : state.AudioStream.BitRate ?? state.Request.AudioBitRate.Value;
|
|
|
|
return Math.Min(currentBitrate, state.Request.AudioBitRate.Value);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the user agent param.
|
|
/// </summary>
|
|
/// <param name="path">The path.</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetUserAgentParam(string path)
|
|
{
|
|
var useragent = GetUserAgent(path);
|
|
|
|
if (!string.IsNullOrEmpty(useragent))
|
|
{
|
|
return "-user-agent \"" + useragent + "\"";
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the user agent.
|
|
/// </summary>
|
|
/// <param name="path">The path.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetUserAgent(string path)
|
|
{
|
|
if (string.IsNullOrEmpty(path))
|
|
{
|
|
throw new ArgumentNullException("path");
|
|
|
|
}
|
|
if (path.IndexOf("apple.com", StringComparison.OrdinalIgnoreCase) != -1)
|
|
{
|
|
return "QuickTime/7.7.4";
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Processes the exited.
|
|
/// </summary>
|
|
/// <param name="process">The process.</param>
|
|
/// <param name="state">The state.</param>
|
|
protected void OnFfMpegProcessExited(Process process, StreamState state)
|
|
{
|
|
state.Dispose();
|
|
|
|
var outputFilePath = GetOutputFilePath(state);
|
|
|
|
try
|
|
{
|
|
Logger.Info("FFMpeg exited with code {0} for {1}", process.ExitCode, outputFilePath);
|
|
}
|
|
catch
|
|
{
|
|
Logger.Info("FFMpeg exited with an error for {0}", outputFilePath);
|
|
}
|
|
}
|
|
|
|
protected double? GetFramerateParam(StreamState state)
|
|
{
|
|
if (state.VideoRequest != null)
|
|
{
|
|
if (state.VideoRequest.Framerate.HasValue)
|
|
{
|
|
return state.VideoRequest.Framerate.Value;
|
|
}
|
|
|
|
var maxrate = state.VideoRequest.MaxFramerate ?? 23.97602;
|
|
|
|
if (state.VideoStream != null)
|
|
{
|
|
var contentRate = state.VideoStream.AverageFrameRate ?? state.VideoStream.RealFrameRate;
|
|
|
|
if (contentRate.HasValue && contentRate.Value > maxrate)
|
|
{
|
|
return maxrate;
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the parameters.
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
private void ParseParams(StreamRequest request)
|
|
{
|
|
var vals = request.Params.Split(';');
|
|
|
|
var videoRequest = request as VideoStreamRequest;
|
|
|
|
for (var i = 0; i < vals.Length; i++)
|
|
{
|
|
var val = vals[i];
|
|
|
|
if (string.IsNullOrWhiteSpace(val))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (i == 0)
|
|
{
|
|
request.DeviceProfileId = val;
|
|
}
|
|
else if (i == 1)
|
|
{
|
|
request.DeviceId = val;
|
|
}
|
|
else if (i == 2)
|
|
{
|
|
request.MediaSourceId = val;
|
|
}
|
|
else if (i == 3)
|
|
{
|
|
request.Static = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
|
|
}
|
|
else if (i == 4)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.VideoCodec = val;
|
|
}
|
|
}
|
|
else if (i == 5)
|
|
{
|
|
request.AudioCodec = val;
|
|
}
|
|
else if (i == 6)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.AudioStreamIndex = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 7)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.SubtitleStreamIndex = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 8)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.VideoBitRate = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 9)
|
|
{
|
|
request.AudioBitRate = int.Parse(val, UsCulture);
|
|
}
|
|
else if (i == 10)
|
|
{
|
|
request.MaxAudioChannels = int.Parse(val, UsCulture);
|
|
}
|
|
else if (i == 11)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.MaxFramerate = double.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 12)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.MaxWidth = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 13)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.MaxHeight = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 14)
|
|
{
|
|
request.StartTimeTicks = long.Parse(val, UsCulture);
|
|
}
|
|
else if (i == 15)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.Level = val;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the dlna headers.
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
private void ParseDlnaHeaders(StreamRequest request)
|
|
{
|
|
if (!request.StartTimeTicks.HasValue)
|
|
{
|
|
var timeSeek = GetHeader("TimeSeekRange.dlna.org");
|
|
|
|
request.StartTimeTicks = ParseTimeSeekHeader(timeSeek);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the time seek header.
|
|
/// </summary>
|
|
private long? ParseTimeSeekHeader(string value)
|
|
{
|
|
if (string.IsNullOrWhiteSpace(value))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
if (value.IndexOf("npt=", StringComparison.OrdinalIgnoreCase) != 0)
|
|
{
|
|
throw new ArgumentException("Invalid timeseek header");
|
|
}
|
|
value = value.Substring(4).Split(new[] { '-' }, 2)[0];
|
|
|
|
if (value.IndexOf(':') == -1)
|
|
{
|
|
// Parses npt times in the format of '417.33'
|
|
double seconds;
|
|
if (double.TryParse(value, NumberStyles.Any, UsCulture, out seconds))
|
|
{
|
|
return TimeSpan.FromSeconds(seconds).Ticks;
|
|
}
|
|
|
|
throw new ArgumentException("Invalid timeseek header");
|
|
}
|
|
|
|
// Parses npt times in the format of '10:19:25.7'
|
|
var tokens = value.Split(new[] { ':' }, 3);
|
|
double secondsSum = 0;
|
|
var timeFactor = 3600;
|
|
|
|
foreach (var time in tokens)
|
|
{
|
|
double digit;
|
|
if (double.TryParse(time, NumberStyles.Any, UsCulture, out digit))
|
|
{
|
|
secondsSum += (digit * timeFactor);
|
|
}
|
|
else
|
|
{
|
|
throw new ArgumentException("Invalid timeseek header");
|
|
}
|
|
timeFactor /= 60;
|
|
}
|
|
return TimeSpan.FromSeconds(secondsSum).Ticks;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the state.
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <param name="cancellationToken">The cancellation token.</param>
|
|
/// <returns>StreamState.</returns>
|
|
protected async Task<StreamState> GetState(StreamRequest request, CancellationToken cancellationToken)
|
|
{
|
|
ParseDlnaHeaders(request);
|
|
|
|
if (!string.IsNullOrWhiteSpace(request.Params))
|
|
{
|
|
ParseParams(request);
|
|
}
|
|
|
|
var user = AuthorizationRequestFilterAttribute.GetCurrentUser(Request, UserManager);
|
|
|
|
var url = Request.PathInfo;
|
|
|
|
if (string.IsNullOrEmpty(request.AudioCodec))
|
|
{
|
|
request.AudioCodec = InferAudioCodec(url);
|
|
}
|
|
|
|
var state = new StreamState(LiveTvManager, Logger)
|
|
{
|
|
Request = request,
|
|
RequestedUrl = url
|
|
};
|
|
|
|
if (!string.IsNullOrWhiteSpace(request.AudioCodec))
|
|
{
|
|
state.SupportedAudioCodecs = request.AudioCodec.Split(',').Where(i => !string.IsNullOrWhiteSpace(i)).ToList();
|
|
state.Request.AudioCodec = state.SupportedAudioCodecs.FirstOrDefault();
|
|
}
|
|
|
|
var item = string.IsNullOrEmpty(request.MediaSourceId) ?
|
|
DtoService.GetItemByDtoId(request.Id) :
|
|
DtoService.GetItemByDtoId(request.MediaSourceId);
|
|
|
|
if (user != null && item.GetPlayAccess(user) != PlayAccess.Full)
|
|
{
|
|
throw new ArgumentException(string.Format("{0} is not allowed to play media.", user.Name));
|
|
}
|
|
|
|
if (item is ILiveTvRecording)
|
|
{
|
|
var recording = await LiveTvManager.GetInternalRecording(request.Id, cancellationToken).ConfigureAwait(false);
|
|
|
|
state.VideoType = VideoType.VideoFile;
|
|
state.IsInputVideo = string.Equals(recording.MediaType, MediaType.Video, StringComparison.OrdinalIgnoreCase);
|
|
state.PlayableStreamFileNames = new List<string>();
|
|
|
|
var path = recording.RecordingInfo.Path;
|
|
var mediaUrl = recording.RecordingInfo.Url;
|
|
|
|
if (string.IsNullOrWhiteSpace(path) && string.IsNullOrWhiteSpace(mediaUrl))
|
|
{
|
|
var streamInfo = await LiveTvManager.GetRecordingStream(request.Id, cancellationToken).ConfigureAwait(false);
|
|
|
|
state.LiveTvStreamId = streamInfo.Id;
|
|
|
|
path = streamInfo.Path;
|
|
mediaUrl = streamInfo.Url;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(path))
|
|
{
|
|
state.MediaPath = path;
|
|
state.IsRemote = false;
|
|
}
|
|
else if (!string.IsNullOrEmpty(mediaUrl))
|
|
{
|
|
state.MediaPath = mediaUrl;
|
|
state.IsRemote = true;
|
|
}
|
|
|
|
state.RunTimeTicks = recording.RunTimeTicks;
|
|
|
|
if (recording.RecordingInfo.Status == RecordingStatus.InProgress)
|
|
{
|
|
await Task.Delay(1000, cancellationToken).ConfigureAwait(false);
|
|
}
|
|
|
|
state.ReadInputAtNativeFramerate = recording.RecordingInfo.Status == RecordingStatus.InProgress;
|
|
state.AudioSync = "1000";
|
|
state.DeInterlace = true;
|
|
state.InputVideoSync = "-1";
|
|
state.InputAudioSync = "1";
|
|
}
|
|
else if (item is LiveTvChannel)
|
|
{
|
|
var channel = LiveTvManager.GetInternalChannel(request.Id);
|
|
|
|
state.VideoType = VideoType.VideoFile;
|
|
state.IsInputVideo = string.Equals(channel.MediaType, MediaType.Video, StringComparison.OrdinalIgnoreCase);
|
|
state.PlayableStreamFileNames = new List<string>();
|
|
|
|
var streamInfo = await LiveTvManager.GetChannelStream(request.Id, cancellationToken).ConfigureAwait(false);
|
|
|
|
state.LiveTvStreamId = streamInfo.Id;
|
|
|
|
if (!string.IsNullOrEmpty(streamInfo.Path))
|
|
{
|
|
state.MediaPath = streamInfo.Path;
|
|
state.IsRemote = false;
|
|
|
|
await Task.Delay(1000, cancellationToken).ConfigureAwait(false);
|
|
}
|
|
else if (!string.IsNullOrEmpty(streamInfo.Url))
|
|
{
|
|
state.MediaPath = streamInfo.Url;
|
|
state.IsRemote = true;
|
|
}
|
|
|
|
state.ReadInputAtNativeFramerate = true;
|
|
state.AudioSync = "1000";
|
|
state.DeInterlace = true;
|
|
state.InputVideoSync = "-1";
|
|
state.InputAudioSync = "1";
|
|
}
|
|
else
|
|
{
|
|
state.MediaPath = item.Path;
|
|
state.IsRemote = item.LocationType == LocationType.Remote;
|
|
|
|
var video = item as Video;
|
|
|
|
if (video != null)
|
|
{
|
|
state.IsInputVideo = true;
|
|
state.VideoType = video.VideoType;
|
|
state.IsoType = video.IsoType;
|
|
|
|
state.PlayableStreamFileNames = video.PlayableStreamFileNames == null
|
|
? new List<string>()
|
|
: video.PlayableStreamFileNames.ToList();
|
|
}
|
|
|
|
state.RunTimeTicks = item.RunTimeTicks;
|
|
}
|
|
|
|
var videoRequest = request as VideoStreamRequest;
|
|
|
|
var mediaStreams = ItemRepository.GetMediaStreams(new MediaStreamQuery
|
|
{
|
|
ItemId = item.Id
|
|
|
|
}).ToList();
|
|
|
|
if (videoRequest != null)
|
|
{
|
|
if (string.IsNullOrEmpty(videoRequest.VideoCodec))
|
|
{
|
|
videoRequest.VideoCodec = InferVideoCodec(url);
|
|
}
|
|
|
|
state.VideoStream = GetMediaStream(mediaStreams, videoRequest.VideoStreamIndex, MediaStreamType.Video);
|
|
state.SubtitleStream = GetMediaStream(mediaStreams, videoRequest.SubtitleStreamIndex, MediaStreamType.Subtitle, false);
|
|
state.AudioStream = GetMediaStream(mediaStreams, videoRequest.AudioStreamIndex, MediaStreamType.Audio);
|
|
|
|
if (state.VideoStream != null && state.VideoStream.IsInterlaced)
|
|
{
|
|
state.DeInterlace = true;
|
|
}
|
|
|
|
EnforceResolutionLimit(state, videoRequest);
|
|
}
|
|
else
|
|
{
|
|
state.AudioStream = GetMediaStream(mediaStreams, null, MediaStreamType.Audio, true);
|
|
}
|
|
|
|
state.HasMediaStreams = mediaStreams.Count > 0;
|
|
|
|
state.SegmentLength = state.ReadInputAtNativeFramerate ? 5 : 10;
|
|
state.HlsListSize = state.ReadInputAtNativeFramerate ? 100 : 1440;
|
|
|
|
ApplyDeviceProfileSettings(state);
|
|
|
|
if (videoRequest != null)
|
|
{
|
|
if (state.VideoStream != null && CanStreamCopyVideo(videoRequest, state.VideoStream, state.VideoType))
|
|
{
|
|
videoRequest.VideoCodec = "copy";
|
|
}
|
|
|
|
if (state.AudioStream != null && CanStreamCopyAudio(request, state.AudioStream, state.SupportedAudioCodecs))
|
|
{
|
|
request.AudioCodec = "copy";
|
|
}
|
|
}
|
|
|
|
return state;
|
|
}
|
|
|
|
private bool CanStreamCopyVideo(VideoStreamRequest request, MediaStream videoStream, VideoType videoType)
|
|
{
|
|
if (videoStream.IsInterlaced)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Not going to attempt this with folder rips
|
|
if (videoType != VideoType.VideoFile)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Source and target codecs must match
|
|
if (!string.Equals(request.VideoCodec, videoStream.Codec, StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// If client is requesting a specific video profile, it must match the source
|
|
if (!string.IsNullOrEmpty(request.Profile) && !string.Equals(request.Profile, videoStream.Profile, StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Video width must fall within requested value
|
|
if (request.MaxWidth.HasValue)
|
|
{
|
|
if (!videoStream.Width.HasValue || videoStream.Width.Value > request.MaxWidth.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Video height must fall within requested value
|
|
if (request.MaxHeight.HasValue)
|
|
{
|
|
if (!videoStream.Height.HasValue || videoStream.Height.Value > request.MaxHeight.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Video framerate must fall within requested value
|
|
var requestedFramerate = request.MaxFramerate ?? request.Framerate;
|
|
if (requestedFramerate.HasValue)
|
|
{
|
|
var videoFrameRate = videoStream.AverageFrameRate ?? videoStream.RealFrameRate;
|
|
|
|
if (!videoFrameRate.HasValue || videoFrameRate.Value > requestedFramerate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Video bitrate must fall within requested value
|
|
if (request.VideoBitRate.HasValue)
|
|
{
|
|
if (!videoStream.BitRate.HasValue || videoStream.BitRate.Value > request.VideoBitRate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// If a specific level was requested, the source must match or be less than
|
|
if (!string.IsNullOrEmpty(request.Level))
|
|
{
|
|
double requestLevel;
|
|
|
|
if (double.TryParse(request.Level, NumberStyles.Any, UsCulture, out requestLevel))
|
|
{
|
|
if (!videoStream.Level.HasValue)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (videoStream.Level.Value > requestLevel)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return request.EnableAutoStreamCopy;
|
|
}
|
|
|
|
private bool CanStreamCopyAudio(StreamRequest request, MediaStream audioStream, List<string> supportedAudioCodecs)
|
|
{
|
|
// Source and target codecs must match
|
|
if (string.IsNullOrEmpty(audioStream.Codec) || !supportedAudioCodecs.Contains(audioStream.Codec, StringComparer.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Video bitrate must fall within requested value
|
|
if (request.AudioBitRate.HasValue)
|
|
{
|
|
if (!audioStream.BitRate.HasValue || audioStream.BitRate.Value > request.AudioBitRate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Channels must fall within requested value
|
|
var channels = request.AudioChannels ?? request.MaxAudioChannels;
|
|
if (channels.HasValue)
|
|
{
|
|
if (!audioStream.Channels.HasValue || audioStream.Channels.Value > channels.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Sample rate must fall within requested value
|
|
if (request.AudioSampleRate.HasValue)
|
|
{
|
|
if (!audioStream.SampleRate.HasValue || audioStream.SampleRate.Value > request.AudioSampleRate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private void ApplyDeviceProfileSettings(StreamState state)
|
|
{
|
|
var headers = new Dictionary<string, string>();
|
|
|
|
foreach (var key in Request.Headers.AllKeys)
|
|
{
|
|
headers[key] = Request.Headers[key];
|
|
}
|
|
|
|
var profile = string.IsNullOrWhiteSpace(state.Request.DeviceProfileId) ?
|
|
DlnaManager.GetProfile(headers) :
|
|
DlnaManager.GetProfile(state.Request.DeviceProfileId);
|
|
|
|
if (profile == null)
|
|
{
|
|
// Don't use settings from the default profile.
|
|
// Only use a specific profile if it was requested.
|
|
return;
|
|
}
|
|
|
|
var container = Path.GetExtension(state.RequestedUrl);
|
|
|
|
if (string.IsNullOrEmpty(container))
|
|
{
|
|
container = Path.GetExtension(GetOutputFilePath(state));
|
|
}
|
|
|
|
var audioCodec = state.Request.AudioCodec;
|
|
|
|
if (string.Equals(audioCodec, "copy", StringComparison.OrdinalIgnoreCase) && state.AudioStream != null)
|
|
{
|
|
audioCodec = state.AudioStream.Codec;
|
|
}
|
|
|
|
var videoCodec = state.VideoRequest == null ? null : state.VideoRequest.VideoCodec;
|
|
|
|
if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase) && state.VideoStream != null)
|
|
{
|
|
videoCodec = state.VideoStream.Codec;
|
|
}
|
|
|
|
var mediaProfile = state.VideoRequest == null ?
|
|
profile.GetAudioMediaProfile(container, audioCodec, state.AudioStream) :
|
|
profile.GetVideoMediaProfile(container, audioCodec, videoCodec, state.AudioStream, state.VideoStream);
|
|
|
|
if (mediaProfile != null)
|
|
{
|
|
state.MimeType = mediaProfile.MimeType;
|
|
state.OrgPn = mediaProfile.OrgPn;
|
|
}
|
|
|
|
var transcodingProfile = state.VideoRequest == null ?
|
|
profile.GetAudioTranscodingProfile(container, audioCodec) :
|
|
profile.GetVideoTranscodingProfile(container, audioCodec, videoCodec);
|
|
|
|
if (transcodingProfile != null)
|
|
{
|
|
state.EstimateContentLength = transcodingProfile.EstimateContentLength;
|
|
state.EnableMpegtsM2TsMode = transcodingProfile.EnableMpegtsM2TsMode;
|
|
state.TranscodeSeekInfo = transcodingProfile.TranscodeSeekInfo;
|
|
|
|
if (state.VideoRequest != null && string.IsNullOrWhiteSpace(state.VideoRequest.Profile))
|
|
{
|
|
state.VideoRequest.Profile = transcodingProfile.VideoProfile;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Adds the dlna headers.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="responseHeaders">The response headers.</param>
|
|
/// <param name="isStaticallyStreamed">if set to <c>true</c> [is statically streamed].</param>
|
|
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
|
|
protected void AddDlnaHeaders(StreamState state, IDictionary<string, string> responseHeaders, bool isStaticallyStreamed)
|
|
{
|
|
var transferMode = GetHeader("transferMode.dlna.org");
|
|
responseHeaders["transferMode.dlna.org"] = string.IsNullOrEmpty(transferMode) ? "Streaming" : transferMode;
|
|
responseHeaders["realTimeInfo.dlna.org"] = "DLNA.ORG_TLAG=*";
|
|
|
|
var contentFeatures = string.Empty;
|
|
var extension = GetOutputFileExtension(state);
|
|
|
|
// first bit means Time based seek supported, second byte range seek supported (not sure about the order now), so 01 = only byte seek, 10 = time based, 11 = both, 00 = none
|
|
var orgOp = ";DLNA.ORG_OP=";
|
|
|
|
if (state.RunTimeTicks.HasValue)
|
|
{
|
|
// Time-based seeking currently only possible when transcoding
|
|
orgOp += isStaticallyStreamed ? "0" : "1";
|
|
|
|
// Byte-based seeking only possible when not transcoding
|
|
orgOp += isStaticallyStreamed || state.TranscodeSeekInfo == TranscodeSeekInfo.Bytes ? "1" : "0";
|
|
|
|
if (!isStaticallyStreamed)
|
|
{
|
|
AddTimeSeekResponseHeaders(state, responseHeaders);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// No seeking is available if we don't know the content runtime
|
|
orgOp += "00";
|
|
}
|
|
|
|
// 0 = native, 1 = transcoded
|
|
var orgCi = isStaticallyStreamed ? ";DLNA.ORG_CI=0" : ";DLNA.ORG_CI=1";
|
|
|
|
var flagValue = DlnaFlags.DLNA_ORG_FLAG_STREAMING_TRANSFER_MODE |
|
|
DlnaFlags.DLNA_ORG_FLAG_BACKGROUND_TRANSFERT_MODE |
|
|
DlnaFlags.DLNA_ORG_FLAG_DLNA_V15;
|
|
|
|
if (isStaticallyStreamed)
|
|
{
|
|
//flagValue = flagValue | DlnaFlags.DLNA_ORG_FLAG_BYTE_BASED_SEEK;
|
|
}
|
|
else if (state.RunTimeTicks.HasValue)
|
|
{
|
|
//flagValue = flagValue | DlnaFlags.DLNA_ORG_FLAG_TIME_BASED_SEEK;
|
|
}
|
|
|
|
var dlnaflags = string.Format(";DLNA.ORG_FLAGS={0}000000000000000000000000",
|
|
Enum.Format(typeof(DlnaFlags), flagValue, "x"));
|
|
|
|
if (!string.IsNullOrWhiteSpace(state.OrgPn))
|
|
{
|
|
contentFeatures = "DLNA.ORG_PN=" + state.OrgPn;
|
|
}
|
|
else if (string.Equals(extension, ".mp3", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
contentFeatures = "DLNA.ORG_PN=MP3";
|
|
}
|
|
else if (string.Equals(extension, ".aac", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
contentFeatures = "DLNA.ORG_PN=AAC_ISO";
|
|
}
|
|
else if (string.Equals(extension, ".wma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
contentFeatures = "DLNA.ORG_PN=WMABASE";
|
|
}
|
|
else if (string.Equals(extension, ".avi", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
contentFeatures = "DLNA.ORG_PN=AVI";
|
|
}
|
|
else if (string.Equals(extension, ".mkv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
contentFeatures = "DLNA.ORG_PN=MATROSKA";
|
|
}
|
|
else if (string.Equals(extension, ".mp4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
contentFeatures = "DLNA.ORG_PN=AVC_MP4_MP_HD_720p_AAC";
|
|
}
|
|
else if (string.Equals(extension, ".mpeg", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
contentFeatures = "DLNA.ORG_PN=MPEG_PS_PAL";
|
|
}
|
|
else if (string.Equals(extension, ".ts", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
contentFeatures = "DLNA.ORG_PN=MPEG_PS_PAL";
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(contentFeatures))
|
|
{
|
|
responseHeaders["contentFeatures.dlna.org"] = (contentFeatures + orgOp + orgCi + dlnaflags).Trim(';');
|
|
}
|
|
|
|
foreach (var item in responseHeaders)
|
|
{
|
|
Request.Response.AddHeader(item.Key, item.Value);
|
|
}
|
|
}
|
|
|
|
[Flags]
|
|
private enum DlnaFlags
|
|
{
|
|
DLNA_ORG_FLAG_SENDER_PACED = (1 << 31),
|
|
DLNA_ORG_FLAG_TIME_BASED_SEEK = (1 << 30),
|
|
DLNA_ORG_FLAG_BYTE_BASED_SEEK = (1 << 29),
|
|
DLNA_ORG_FLAG_PLAY_CONTAINER = (1 << 28),
|
|
DLNA_ORG_FLAG_S0_INCREASE = (1 << 27),
|
|
DLNA_ORG_FLAG_SN_INCREASE = (1 << 26),
|
|
DLNA_ORG_FLAG_RTSP_PAUSE = (1 << 25),
|
|
DLNA_ORG_FLAG_STREAMING_TRANSFER_MODE = (1 << 24),
|
|
DLNA_ORG_FLAG_INTERACTIVE_TRANSFERT_MODE = (1 << 23),
|
|
DLNA_ORG_FLAG_BACKGROUND_TRANSFERT_MODE = (1 << 22),
|
|
DLNA_ORG_FLAG_CONNECTION_STALL = (1 << 21),
|
|
DLNA_ORG_FLAG_DLNA_V15 = (1 << 20),
|
|
};
|
|
|
|
private void AddTimeSeekResponseHeaders(StreamState state, IDictionary<string, string> responseHeaders)
|
|
{
|
|
var runtimeSeconds = TimeSpan.FromTicks(state.RunTimeTicks.Value).TotalSeconds.ToString(UsCulture);
|
|
var startSeconds = TimeSpan.FromTicks(state.Request.StartTimeTicks ?? 0).TotalSeconds.ToString(UsCulture);
|
|
|
|
responseHeaders["TimeSeekRange.dlna.org"] = string.Format("npt={0}-{1}/{1}", startSeconds, runtimeSeconds);
|
|
responseHeaders["X-AvailableSeekRange"] = string.Format("1 npt={0}-{1}", startSeconds, runtimeSeconds);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Enforces the resolution limit.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="videoRequest">The video request.</param>
|
|
private void EnforceResolutionLimit(StreamState state, VideoStreamRequest videoRequest)
|
|
{
|
|
// If enabled, allow whatever the client asks for
|
|
if (ServerConfigurationManager.Configuration.AllowVideoUpscaling)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Switch the incoming params to be ceilings rather than fixed values
|
|
videoRequest.MaxWidth = videoRequest.MaxWidth ?? videoRequest.Width;
|
|
videoRequest.MaxHeight = videoRequest.MaxHeight ?? videoRequest.Height;
|
|
|
|
videoRequest.Width = null;
|
|
videoRequest.Height = null;
|
|
}
|
|
|
|
protected string GetInputModifier(StreamState state)
|
|
{
|
|
var inputModifier = string.Empty;
|
|
|
|
var probeSize = GetProbeSizeArgument(state.MediaPath, state.IsInputVideo, state.VideoType, state.IsoType);
|
|
inputModifier += " " + probeSize;
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
inputModifier += " " + GetUserAgentParam(state.MediaPath);
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
inputModifier += " " + GetFastSeekCommandLineParameter(state.Request);
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
if (state.VideoRequest != null)
|
|
{
|
|
inputModifier += " -fflags genpts";
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.InputFormat))
|
|
{
|
|
inputModifier += " -f " + state.InputFormat;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.InputVideoCodec))
|
|
{
|
|
inputModifier += " -vcodec " + state.InputVideoCodec;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.InputAudioCodec))
|
|
{
|
|
inputModifier += " -acodec " + state.InputAudioCodec;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.InputAudioSync))
|
|
{
|
|
inputModifier += " -async " + state.InputAudioSync;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.InputVideoSync))
|
|
{
|
|
inputModifier += " -vsync " + state.InputVideoSync;
|
|
}
|
|
|
|
if (state.ReadInputAtNativeFramerate)
|
|
{
|
|
inputModifier += " -re";
|
|
}
|
|
|
|
return inputModifier;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Infers the audio codec based on the url
|
|
/// </summary>
|
|
/// <param name="url">The URL.</param>
|
|
/// <returns>System.Nullable{AudioCodecs}.</returns>
|
|
private string InferAudioCodec(string url)
|
|
{
|
|
var ext = Path.GetExtension(url);
|
|
|
|
if (string.Equals(ext, ".mp3", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "mp3";
|
|
}
|
|
if (string.Equals(ext, ".aac", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "aac";
|
|
}
|
|
if (string.Equals(ext, ".wma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wma";
|
|
}
|
|
if (string.Equals(ext, ".ogg", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".oga", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".ogv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".webm", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".webma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
|
|
return "copy";
|
|
}
|
|
|
|
/// <summary>
|
|
/// Infers the video codec.
|
|
/// </summary>
|
|
/// <param name="url">The URL.</param>
|
|
/// <returns>System.Nullable{VideoCodecs}.</returns>
|
|
private string InferVideoCodec(string url)
|
|
{
|
|
var ext = Path.GetExtension(url);
|
|
|
|
if (string.Equals(ext, ".asf", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wmv";
|
|
}
|
|
if (string.Equals(ext, ".webm", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vpx";
|
|
}
|
|
if (string.Equals(ext, ".ogg", StringComparison.OrdinalIgnoreCase) || string.Equals(ext, ".ogv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "theora";
|
|
}
|
|
if (string.Equals(ext, ".m3u8", StringComparison.OrdinalIgnoreCase) || string.Equals(ext, ".ts", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "h264";
|
|
}
|
|
|
|
return "copy";
|
|
}
|
|
}
|
|
}
|