278 lines
10 KiB
C#
278 lines
10 KiB
C#
using MediaBrowser.Common.Net;
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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.Drawing;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.MediaEncoding;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Serialization;
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using System;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using MediaBrowser.Common.IO;
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using MediaBrowser.Controller.IO;
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using MediaBrowser.Controller.Net;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Dlna;
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using MediaBrowser.Model.Services;
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namespace MediaBrowser.Api.Playback.Progressive
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{
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/// <summary>
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/// Class GetVideoStream
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/// </summary>
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[Route("/Videos/{Id}/stream.mpegts", "GET")]
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[Route("/Videos/{Id}/stream.ts", "GET")]
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[Route("/Videos/{Id}/stream.webm", "GET")]
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[Route("/Videos/{Id}/stream.asf", "GET")]
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[Route("/Videos/{Id}/stream.wmv", "GET")]
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[Route("/Videos/{Id}/stream.ogv", "GET")]
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[Route("/Videos/{Id}/stream.mp4", "GET")]
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[Route("/Videos/{Id}/stream.m4v", "GET")]
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[Route("/Videos/{Id}/stream.mkv", "GET")]
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[Route("/Videos/{Id}/stream.mpeg", "GET")]
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[Route("/Videos/{Id}/stream.mpg", "GET")]
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[Route("/Videos/{Id}/stream.avi", "GET")]
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[Route("/Videos/{Id}/stream.m2ts", "GET")]
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[Route("/Videos/{Id}/stream.3gp", "GET")]
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[Route("/Videos/{Id}/stream.wmv", "GET")]
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[Route("/Videos/{Id}/stream.wtv", "GET")]
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[Route("/Videos/{Id}/stream.mov", "GET")]
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[Route("/Videos/{Id}/stream.iso", "GET")]
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[Route("/Videos/{Id}/stream", "GET")]
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[Route("/Videos/{Id}/stream.ts", "HEAD")]
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[Route("/Videos/{Id}/stream.webm", "HEAD")]
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[Route("/Videos/{Id}/stream.asf", "HEAD")]
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[Route("/Videos/{Id}/stream.wmv", "HEAD")]
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[Route("/Videos/{Id}/stream.ogv", "HEAD")]
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[Route("/Videos/{Id}/stream.mp4", "HEAD")]
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[Route("/Videos/{Id}/stream.m4v", "HEAD")]
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[Route("/Videos/{Id}/stream.mkv", "HEAD")]
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[Route("/Videos/{Id}/stream.mpeg", "HEAD")]
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[Route("/Videos/{Id}/stream.mpg", "HEAD")]
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[Route("/Videos/{Id}/stream.avi", "HEAD")]
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[Route("/Videos/{Id}/stream.3gp", "HEAD")]
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[Route("/Videos/{Id}/stream.wmv", "HEAD")]
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[Route("/Videos/{Id}/stream.wtv", "HEAD")]
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[Route("/Videos/{Id}/stream.m2ts", "HEAD")]
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[Route("/Videos/{Id}/stream.mov", "HEAD")]
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[Route("/Videos/{Id}/stream.iso", "HEAD")]
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[Route("/Videos/{Id}/stream", "HEAD")]
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public class GetVideoStream : VideoStreamRequest
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{
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}
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/// <summary>
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/// Class VideoService
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/// </summary>
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public class VideoService : BaseProgressiveStreamingService
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{
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public VideoService(IServerConfigurationManager serverConfig, IUserManager userManager, ILibraryManager libraryManager, IIsoManager isoManager, IMediaEncoder mediaEncoder, IFileSystem fileSystem, IDlnaManager dlnaManager, ISubtitleEncoder subtitleEncoder, IDeviceManager deviceManager, IMediaSourceManager mediaSourceManager, IZipClient zipClient, IJsonSerializer jsonSerializer, IAuthorizationContext authorizationContext, IImageProcessor imageProcessor) : base(serverConfig, userManager, libraryManager, isoManager, mediaEncoder, fileSystem, dlnaManager, subtitleEncoder, deviceManager, mediaSourceManager, zipClient, jsonSerializer, authorizationContext, imageProcessor)
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{
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}
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/// <summary>
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/// Gets the specified request.
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/// </summary>
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/// <param name="request">The request.</param>
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/// <returns>System.Object.</returns>
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public Task<object> Get(GetVideoStream request)
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{
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return ProcessRequest(request, false);
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}
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/// <summary>
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/// Heads the specified request.
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/// </summary>
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/// <param name="request">The request.</param>
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/// <returns>System.Object.</returns>
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public Task<object> Head(GetVideoStream request)
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{
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return ProcessRequest(request, true);
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}
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protected override string GetCommandLineArguments(string outputPath, StreamState state, bool isEncoding)
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{
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var encodingOptions = ApiEntryPoint.Instance.GetEncodingOptions();
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// Get the output codec name
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var videoCodec = EncodingHelper.GetVideoEncoder(state, encodingOptions);
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var format = string.Empty;
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var keyFrame = string.Empty;
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if (string.Equals(Path.GetExtension(outputPath), ".mp4", StringComparison.OrdinalIgnoreCase))
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{
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// Comparison: https://github.com/jansmolders86/mediacenterjs/blob/master/lib/transcoding/desktop.js
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format = " -f mp4 -movflags frag_keyframe+empty_moov";
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}
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var threads = EncodingHelper.GetNumberOfThreads(state, encodingOptions, string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase));
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var inputModifier = EncodingHelper.GetInputModifier(state, encodingOptions);
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var subtitleArguments = state.SubtitleStream != null &&
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state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Embed
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? GetSubtitleArguments(state)
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: string.Empty;
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return string.Format("{0} {1}{2} {3} {4} -map_metadata -1 -map_chapters -1 -threads {5} {6}{7}{8} -y \"{9}\"",
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inputModifier,
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EncodingHelper.GetInputArgument(state, encodingOptions),
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keyFrame,
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EncodingHelper.GetMapArgs(state),
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GetVideoArguments(state, videoCodec),
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threads,
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GetAudioArguments(state),
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subtitleArguments,
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format,
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outputPath
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).Trim();
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}
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private string GetSubtitleArguments(StreamState state)
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{
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var format = state.SupportedSubtitleCodecs.FirstOrDefault();
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string codec;
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if (string.IsNullOrWhiteSpace(format) || string.Equals(format, state.SubtitleStream.Codec, StringComparison.OrdinalIgnoreCase))
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{
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codec = "copy";
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}
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else
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{
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codec = format;
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}
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return " -codec:s:0 " + codec;
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}
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/// <summary>
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/// Gets video arguments to pass to ffmpeg
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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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/// <returns>System.String.</returns>
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private string GetVideoArguments(StreamState state, string videoCodec)
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{
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var args = "-codec:v:0 " + videoCodec;
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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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if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase))
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{
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if (state.VideoStream != null && EncodingHelper.IsH264(state.VideoStream) && string.Equals(state.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
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{
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args += " -bsf:v h264_mp4toannexb";
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}
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if (state.RunTimeTicks.HasValue && state.VideoRequest.CopyTimestamps)
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{
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args += " -copyts -avoid_negative_ts disabled -start_at_zero";
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}
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if (!state.RunTimeTicks.HasValue)
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{
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args += " -flags -global_header -fflags +genpts";
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}
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return args;
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}
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var keyFrameArg = string.Format(" -force_key_frames \"expr:gte(t,n_forced*{0})\"",
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5.ToString(UsCulture));
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args += keyFrameArg;
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var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.VideoRequest.SubtitleMethod == SubtitleDeliveryMethod.Encode;
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var hasCopyTs = false;
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// Add resolution params, if specified
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if (!hasGraphicalSubs)
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{
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var outputSizeParam = EncodingHelper.GetOutputSizeParam(state, videoCodec);
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args += outputSizeParam;
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hasCopyTs = outputSizeParam.IndexOf("copyts", StringComparison.OrdinalIgnoreCase) != -1;
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}
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if (state.RunTimeTicks.HasValue && state.VideoRequest.CopyTimestamps)
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{
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if (!hasCopyTs)
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{
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args += " -copyts";
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}
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args += " -avoid_negative_ts disabled -start_at_zero";
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}
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var encodingOptions = ApiEntryPoint.Instance.GetEncodingOptions();
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var qualityParam = EncodingHelper.GetVideoQualityParam(state, videoCodec, encodingOptions, GetDefaultH264Preset());
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if (!string.IsNullOrEmpty(qualityParam))
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{
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args += " " + qualityParam.Trim();
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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, videoCodec);
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}
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if (!state.RunTimeTicks.HasValue)
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{
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args += " -flags -global_header";
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}
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return args;
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}
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/// <summary>
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/// Gets audio arguments to pass to ffmpeg
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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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private string GetAudioArguments(StreamState state)
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{
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// If the video doesn't have an audio stream, return a default.
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if (state.AudioStream == null && state.VideoStream != null)
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{
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return string.Empty;
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}
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// Get the output codec name
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var codec = EncodingHelper.GetAudioEncoder(state);
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var args = "-codec:a:0 " + codec;
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if (string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase))
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{
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return args;
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}
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// Add the number of audio channels
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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(UsCulture);
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}
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args += " " + EncodingHelper.GetAudioFilterParam(state, ApiEntryPoint.Instance.GetEncodingOptions(), false);
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return args;
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}
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}
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} |