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-rw-r--r--MediaBrowser.Api/Playback/Dash/MpegDashService.cs547
1 files changed, 0 insertions, 547 deletions
diff --git a/MediaBrowser.Api/Playback/Dash/MpegDashService.cs b/MediaBrowser.Api/Playback/Dash/MpegDashService.cs
deleted file mode 100644
index a35d13c5b..000000000
--- a/MediaBrowser.Api/Playback/Dash/MpegDashService.cs
+++ /dev/null
@@ -1,547 +0,0 @@
-using MediaBrowser.Api.Playback.Hls;
-using MediaBrowser.Common.Net;
-using MediaBrowser.Controller.Configuration;
-using MediaBrowser.Controller.Devices;
-using MediaBrowser.Controller.Dlna;
-using MediaBrowser.Controller.Library;
-using MediaBrowser.Controller.MediaEncoding;
-using MediaBrowser.Controller.Net;
-using MediaBrowser.Model.IO;
-using MediaBrowser.Model.Serialization;
-using ServiceStack;
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.IO;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using CommonIO;
-using MimeTypes = MediaBrowser.Model.Net.MimeTypes;
-
-namespace MediaBrowser.Api.Playback.Dash
-{
- /// <summary>
- /// Options is needed for chromecast. Threw Head in there since it's related
- /// </summary>
- [Route("/Videos/{Id}/master.mpd", "GET", Summary = "Gets a video stream using Mpeg dash.")]
- [Route("/Videos/{Id}/master.mpd", "HEAD", Summary = "Gets a video stream using Mpeg dash.")]
- public class GetMasterManifest : VideoStreamRequest
- {
- public bool EnableAdaptiveBitrateStreaming { get; set; }
-
- public GetMasterManifest()
- {
- EnableAdaptiveBitrateStreaming = true;
- }
- }
-
- [Route("/Videos/{Id}/dash/{RepresentationId}/{SegmentId}.m4s", "GET")]
- public class GetDashSegment : VideoStreamRequest
- {
- /// <summary>
- /// Gets or sets the segment id.
- /// </summary>
- /// <value>The segment id.</value>
- public string SegmentId { get; set; }
-
- /// <summary>
- /// Gets or sets the representation identifier.
- /// </summary>
- /// <value>The representation identifier.</value>
- public string RepresentationId { get; set; }
- }
-
- public class MpegDashService : BaseHlsService
- {
- public MpegDashService(IServerConfigurationManager serverConfig, IUserManager userManager, ILibraryManager libraryManager, IIsoManager isoManager, IMediaEncoder mediaEncoder, IFileSystem fileSystem, IDlnaManager dlnaManager, ISubtitleEncoder subtitleEncoder, IDeviceManager deviceManager, IMediaSourceManager mediaSourceManager, IZipClient zipClient, IJsonSerializer jsonSerializer, INetworkManager networkManager) : base(serverConfig, userManager, libraryManager, isoManager, mediaEncoder, fileSystem, dlnaManager, subtitleEncoder, deviceManager, mediaSourceManager, zipClient, jsonSerializer)
- {
- NetworkManager = networkManager;
- }
-
- protected INetworkManager NetworkManager { get; private set; }
-
- public object Get(GetMasterManifest request)
- {
- var result = GetAsync(request, "GET").Result;
-
- return result;
- }
-
- public object Head(GetMasterManifest request)
- {
- var result = GetAsync(request, "HEAD").Result;
-
- return result;
- }
-
- protected override bool EnableOutputInSubFolder
- {
- get
- {
- return true;
- }
- }
-
- private async Task<object> GetAsync(GetMasterManifest request, string method)
- {
- if (string.IsNullOrEmpty(request.MediaSourceId))
- {
- throw new ArgumentException("MediaSourceId is required");
- }
-
- var state = await GetState(request, CancellationToken.None).ConfigureAwait(false);
-
- var playlistText = string.Empty;
-
- if (string.Equals(method, "GET", StringComparison.OrdinalIgnoreCase))
- {
- playlistText = new ManifestBuilder().GetManifestText(state, Request.RawUrl);
- }
-
- return ResultFactory.GetResult(playlistText, MimeTypes.GetMimeType("playlist.mpd"), new Dictionary<string, string>());
- }
-
- public object Get(GetDashSegment request)
- {
- return GetDynamicSegment(request, request.SegmentId, request.RepresentationId).Result;
- }
-
- private async Task<object> GetDynamicSegment(VideoStreamRequest request, string segmentId, string representationId)
- {
- if ((request.StartTimeTicks ?? 0) > 0)
- {
- throw new ArgumentException("StartTimeTicks is not allowed.");
- }
-
- var cancellationTokenSource = new CancellationTokenSource();
- var cancellationToken = cancellationTokenSource.Token;
-
- var requestedIndex = string.Equals(segmentId, "init", StringComparison.OrdinalIgnoreCase) ?
- -1 :
- int.Parse(segmentId, NumberStyles.Integer, UsCulture);
-
- var state = await GetState(request, cancellationToken).ConfigureAwait(false);
-
- var playlistPath = Path.ChangeExtension(state.OutputFilePath, ".mpd");
-
- var segmentExtension = GetSegmentFileExtension(state);
-
- var segmentPath = FindSegment(playlistPath, representationId, segmentExtension, requestedIndex);
- var segmentLength = state.SegmentLength;
-
- TranscodingJob job = null;
-
- if (!string.IsNullOrWhiteSpace(segmentPath))
- {
- job = ApiEntryPoint.Instance.GetTranscodingJob(playlistPath, TranscodingJobType);
- return await GetSegmentResult(playlistPath, segmentPath, requestedIndex, segmentLength, job, cancellationToken).ConfigureAwait(false);
- }
-
- await ApiEntryPoint.Instance.TranscodingStartLock.WaitAsync(cancellationTokenSource.Token).ConfigureAwait(false);
- try
- {
- segmentPath = FindSegment(playlistPath, representationId, segmentExtension, requestedIndex);
- if (!string.IsNullOrWhiteSpace(segmentPath))
- {
- job = ApiEntryPoint.Instance.GetTranscodingJob(playlistPath, TranscodingJobType);
- return await GetSegmentResult(playlistPath, segmentPath, requestedIndex, segmentLength, job, cancellationToken).ConfigureAwait(false);
- }
- else
- {
- if (string.Equals(representationId, "0", StringComparison.OrdinalIgnoreCase))
- {
- job = ApiEntryPoint.Instance.GetTranscodingJob(playlistPath, TranscodingJobType);
- var currentTranscodingIndex = GetCurrentTranscodingIndex(playlistPath, segmentExtension);
- var segmentGapRequiringTranscodingChange = 24 / state.SegmentLength;
- Logger.Debug("Current transcoding index is {0}. requestedIndex={1}. segmentGapRequiringTranscodingChange={2}", currentTranscodingIndex ?? -2, requestedIndex, segmentGapRequiringTranscodingChange);
- if (currentTranscodingIndex == null || requestedIndex < currentTranscodingIndex.Value || requestedIndex - currentTranscodingIndex.Value > segmentGapRequiringTranscodingChange)
- {
- // If the playlist doesn't already exist, startup ffmpeg
- try
- {
- ApiEntryPoint.Instance.KillTranscodingJobs(request.DeviceId, request.PlaySessionId, p => false);
-
- if (currentTranscodingIndex.HasValue)
- {
- DeleteLastTranscodedFiles(playlistPath, 0);
- }
-
- var positionTicks = GetPositionTicks(state, requestedIndex);
- request.StartTimeTicks = positionTicks;
-
- var startNumber = GetStartNumber(state);
-
- var workingDirectory = Path.Combine(Path.GetDirectoryName(playlistPath), (startNumber == -1 ? 0 : startNumber).ToString(CultureInfo.InvariantCulture));
- state.WaitForPath = Path.Combine(workingDirectory, Path.GetFileName(playlistPath));
- FileSystem.CreateDirectory(workingDirectory);
- job = await StartFfMpeg(state, playlistPath, cancellationTokenSource, workingDirectory).ConfigureAwait(false);
- await WaitForMinimumDashSegmentCount(Path.Combine(workingDirectory, Path.GetFileName(playlistPath)), 1, cancellationTokenSource.Token).ConfigureAwait(false);
- }
- catch
- {
- state.Dispose();
- throw;
- }
- }
- }
- }
- }
- finally
- {
- ApiEntryPoint.Instance.TranscodingStartLock.Release();
- }
-
- while (string.IsNullOrWhiteSpace(segmentPath))
- {
- segmentPath = FindSegment(playlistPath, representationId, segmentExtension, requestedIndex);
- await Task.Delay(50, cancellationToken).ConfigureAwait(false);
- }
-
- Logger.Info("returning {0}", segmentPath);
- return await GetSegmentResult(playlistPath, segmentPath, requestedIndex, segmentLength, job ?? ApiEntryPoint.Instance.GetTranscodingJob(playlistPath, TranscodingJobType), cancellationToken).ConfigureAwait(false);
- }
-
- private long GetPositionTicks(StreamState state, int requestedIndex)
- {
- if (requestedIndex <= 0)
- {
- return 0;
- }
-
- var startSeconds = requestedIndex * state.SegmentLength;
- return TimeSpan.FromSeconds(startSeconds).Ticks;
- }
-
- protected Task WaitForMinimumDashSegmentCount(string playlist, int segmentCount, CancellationToken cancellationToken)
- {
- return WaitForSegment(playlist, "stream0-" + segmentCount.ToString("00000", CultureInfo.InvariantCulture) + ".m4s", cancellationToken);
- }
-
- private async Task<object> GetSegmentResult(string playlistPath,
- string segmentPath,
- int segmentIndex,
- int segmentLength,
- TranscodingJob transcodingJob,
- CancellationToken cancellationToken)
- {
- // If all transcoding has completed, just return immediately
- if (transcodingJob != null && transcodingJob.HasExited)
- {
- return GetSegmentResult(segmentPath, segmentIndex, segmentLength, transcodingJob);
- }
-
- // Wait for the file to stop being written to, then stream it
- var length = new FileInfo(segmentPath).Length;
- var eofCount = 0;
-
- while (eofCount < 10)
- {
- var info = new FileInfo(segmentPath);
-
- if (!info.Exists)
- {
- break;
- }
-
- var newLength = info.Length;
-
- if (newLength == length)
- {
- eofCount++;
- }
- else
- {
- eofCount = 0;
- }
-
- length = newLength;
- await Task.Delay(100, cancellationToken).ConfigureAwait(false);
- }
-
- return GetSegmentResult(segmentPath, segmentIndex, segmentLength, transcodingJob);
- }
-
- private object GetSegmentResult(string segmentPath, int index, int segmentLength, TranscodingJob transcodingJob)
- {
- var segmentEndingSeconds = (1 + index) * segmentLength;
- var segmentEndingPositionTicks = TimeSpan.FromSeconds(segmentEndingSeconds).Ticks;
-
- return ResultFactory.GetStaticFileResult(Request, new StaticFileResultOptions
- {
- Path = segmentPath,
- FileShare = FileShare.ReadWrite,
- OnComplete = () =>
- {
- if (transcodingJob != null)
- {
- transcodingJob.DownloadPositionTicks = Math.Max(transcodingJob.DownloadPositionTicks ?? segmentEndingPositionTicks, segmentEndingPositionTicks);
- }
-
- }
- });
- }
-
- public int? GetCurrentTranscodingIndex(string playlist, string segmentExtension)
- {
- var job = ApiEntryPoint.Instance.GetTranscodingJob(playlist, TranscodingJobType);
-
- if (job == null || job.HasExited)
- {
- return null;
- }
-
- var file = GetLastTranscodingFiles(playlist, segmentExtension, FileSystem, 1).FirstOrDefault();
-
- if (file == null)
- {
- return null;
- }
-
- return GetIndex(file.FullName);
- }
-
- public int GetIndex(string segmentPath)
- {
- var indexString = Path.GetFileNameWithoutExtension(segmentPath).Split('-').LastOrDefault();
-
- if (string.Equals(indexString, "init", StringComparison.OrdinalIgnoreCase))
- {
- return -1;
- }
- var startNumber = int.Parse(Path.GetFileNameWithoutExtension(Path.GetDirectoryName(segmentPath)), NumberStyles.Integer, UsCulture);
-
- return startNumber + int.Parse(indexString, NumberStyles.Integer, UsCulture) - 1;
- }
-
- private void DeleteLastTranscodedFiles(string playlistPath, int retryCount)
- {
- if (retryCount >= 5)
- {
- return;
- }
- }
-
- private static List<FileSystemMetadata> GetLastTranscodingFiles(string playlist, string segmentExtension, IFileSystem fileSystem, int count)
- {
- var folder = Path.GetDirectoryName(playlist);
-
- try
- {
- return fileSystem.GetFiles(folder)
- .Where(i => string.Equals(i.Extension, segmentExtension, StringComparison.OrdinalIgnoreCase))
- .OrderByDescending(fileSystem.GetLastWriteTimeUtc)
- .Take(count)
- .ToList();
- }
- catch (DirectoryNotFoundException)
- {
- return new List<FileSystemMetadata>();
- }
- }
-
- private string FindSegment(string playlist, string representationId, string segmentExtension, int requestedIndex)
- {
- var folder = Path.GetDirectoryName(playlist);
-
- if (requestedIndex == -1)
- {
- var path = Path.Combine(folder, "0", "stream" + representationId + "-" + "init" + segmentExtension);
- return FileSystem.FileExists(path) ? path : null;
- }
-
- try
- {
- foreach (var subfolder in FileSystem.GetDirectoryPaths(folder).ToList())
- {
- var subfolderName = Path.GetFileNameWithoutExtension(subfolder);
- int startNumber;
- if (int.TryParse(subfolderName, NumberStyles.Any, UsCulture, out startNumber))
- {
- var segmentIndex = requestedIndex - startNumber + 1;
- var path = Path.Combine(folder, subfolderName, "stream" + representationId + "-" + segmentIndex.ToString("00000", CultureInfo.InvariantCulture) + segmentExtension);
- if (FileSystem.FileExists(path))
- {
- return path;
- }
- }
- }
- }
- catch (DirectoryNotFoundException)
- {
-
- }
-
- return null;
- }
-
- protected override string GetAudioArguments(StreamState state)
- {
- var codec = GetAudioEncoder(state);
-
- if (string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase))
- {
- return "-codec:a:0 copy";
- }
-
- var args = "-codec:a:0 " + codec;
-
- var channels = state.OutputAudioChannels;
-
- if (channels.HasValue)
- {
- args += " -ac " + channels.Value;
- }
-
- var bitrate = state.OutputAudioBitrate;
-
- if (bitrate.HasValue)
- {
- args += " -ab " + bitrate.Value.ToString(UsCulture);
- }
-
- args += " " + GetAudioFilterParam(state, true);
-
- return args;
- }
-
- protected override string GetVideoArguments(StreamState state)
- {
- var codec = GetVideoEncoder(state);
-
- var args = "-codec:v:0 " + codec;
-
- if (state.EnableMpegtsM2TsMode)
- {
- args += " -mpegts_m2ts_mode 1";
- }
-
- // See if we can save come cpu cycles by avoiding encoding
- if (codec.Equals("copy", StringComparison.OrdinalIgnoreCase))
- {
- return state.VideoStream != null && IsH264(state.VideoStream) ?
- args + " -bsf:v h264_mp4toannexb" :
- args;
- }
-
- var keyFrameArg = string.Format(" -force_key_frames expr:gte(t,n_forced*{0})",
- state.SegmentLength.ToString(UsCulture));
-
- var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream;
-
- args += " " + GetVideoQualityParam(state, GetH264Encoder(state)) + keyFrameArg;
-
- // Add resolution params, if specified
- if (!hasGraphicalSubs)
- {
- args += GetOutputSizeParam(state, codec, false);
- }
-
- // This is for internal graphical subs
- if (hasGraphicalSubs)
- {
- args += GetGraphicalSubtitleParam(state, codec);
- }
-
- return args;
- }
-
- protected override string GetCommandLineArguments(string outputPath, StreamState state, bool isEncoding)
- {
- // test url http://192.168.1.2:8096/videos/233e8905d559a8f230db9bffd2ac9d6d/master.mpd?mediasourceid=233e8905d559a8f230db9bffd2ac9d6d&videocodec=h264&audiocodec=aac&maxwidth=1280&videobitrate=500000&audiobitrate=128000&profile=baseline&level=3
- // Good info on i-frames http://blog.streamroot.io/encode-multi-bitrate-videos-mpeg-dash-mse-based-media-players/
-
- var threads = GetNumberOfThreads(state, false);
-
- var inputModifier = GetInputModifier(state);
-
- var initSegmentName = "stream$RepresentationID$-init.m4s";
- var segmentName = "stream$RepresentationID$-$Number%05d$.m4s";
-
- var args = string.Format("{0} {1} -map_metadata -1 -threads {2} {3} {4} -copyts {5} -f dash -init_seg_name \"{6}\" -media_seg_name \"{7}\" -use_template 0 -use_timeline 1 -min_seg_duration {8} -y \"{9}\"",
- inputModifier,
- GetInputArgument(state),
- threads,
- GetMapArgs(state),
- GetVideoArguments(state),
- GetAudioArguments(state),
- initSegmentName,
- segmentName,
- (state.SegmentLength * 1000000).ToString(CultureInfo.InvariantCulture),
- state.WaitForPath
- ).Trim();
-
- return args;
- }
-
- protected override int GetStartNumber(StreamState state)
- {
- return GetStartNumber(state.VideoRequest);
- }
-
- private int GetStartNumber(VideoStreamRequest request)
- {
- var segmentId = "0";
-
- var segmentRequest = request as GetDashSegment;
- if (segmentRequest != null)
- {
- segmentId = segmentRequest.SegmentId;
- }
-
- if (string.Equals(segmentId, "init", StringComparison.OrdinalIgnoreCase))
- {
- return -1;
- }
-
- return int.Parse(segmentId, NumberStyles.Integer, UsCulture);
- }
-
- /// <summary>
- /// Gets the segment file extension.
- /// </summary>
- /// <param name="state">The state.</param>
- /// <returns>System.String.</returns>
- protected override string GetSegmentFileExtension(StreamState state)
- {
- return ".m4s";
- }
-
- protected override TranscodingJobType TranscodingJobType
- {
- get
- {
- return TranscodingJobType.Dash;
- }
- }
-
- private async Task WaitForSegment(string playlist, string segment, CancellationToken cancellationToken)
- {
- var segmentFilename = Path.GetFileName(segment);
-
- Logger.Debug("Waiting for {0} in {1}", segmentFilename, playlist);
-
- while (true)
- {
- // Need to use FileShare.ReadWrite because we're reading the file at the same time it's being written
- using (var fileStream = GetPlaylistFileStream(playlist))
- {
- using (var reader = new StreamReader(fileStream))
- {
- while (!reader.EndOfStream)
- {
- var line = await reader.ReadLineAsync().ConfigureAwait(false);
-
- if (line.IndexOf(segmentFilename, StringComparison.OrdinalIgnoreCase) != -1)
- {
- Logger.Debug("Finished waiting for {0} in {1}", segmentFilename, playlist);
- return;
- }
- }
- await Task.Delay(100, cancellationToken).ConfigureAwait(false);
- }
- }
- }
- }
- }
-}
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