2016-02-12 08:01:38 +01:00
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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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2016-10-25 21:02:04 +02:00
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using MediaBrowser.Model.IO;
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2016-06-21 00:07:18 +02:00
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using MediaBrowser.Common.Net;
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using MediaBrowser.Controller;
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2017-04-21 22:03:07 +02:00
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using MediaBrowser.Controller.Configuration;
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2016-02-12 08:01:38 +01:00
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using MediaBrowser.Controller.MediaEncoding;
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2017-04-21 22:03:07 +02:00
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using MediaBrowser.Model.Configuration;
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2016-11-04 00:35:19 +01:00
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using MediaBrowser.Model.Diagnostics;
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2016-02-12 08:01:38 +01:00
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using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.Entities;
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2016-04-27 23:26:28 +02:00
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using MediaBrowser.Model.LiveTv;
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2018-12-13 14:18:25 +01:00
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using Microsoft.Extensions.Logging;
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2016-02-12 08:01:38 +01:00
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using MediaBrowser.Model.Serialization;
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2017-04-21 22:03:07 +02:00
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using MediaBrowser.Common.Configuration;
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2017-05-15 21:45:39 +02:00
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using MediaBrowser.Controller.Library;
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2018-09-12 19:26:21 +02:00
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using MediaBrowser.Model.Reflection;
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2016-02-12 08:01:38 +01:00
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2016-11-04 00:35:19 +01:00
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namespace Emby.Server.Implementations.LiveTv.EmbyTV
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2016-02-12 08:01:38 +01:00
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{
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public class EncodedRecorder : IRecorder
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{
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private readonly ILogger _logger;
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private readonly IFileSystem _fileSystem;
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private readonly IHttpClient _httpClient;
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private readonly IMediaEncoder _mediaEncoder;
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private readonly IServerApplicationPaths _appPaths;
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private bool _hasExited;
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private Stream _logFileStream;
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private string _targetPath;
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private IProcess _process;
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private readonly IProcessFactory _processFactory;
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private readonly IJsonSerializer _json;
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private readonly TaskCompletionSource<bool> _taskCompletionSource = new TaskCompletionSource<bool>();
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private readonly IServerConfigurationManager _config;
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private readonly IAssemblyInfo _assemblyInfo;
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public EncodedRecorder(ILogger logger, IFileSystem fileSystem, IMediaEncoder mediaEncoder, IServerApplicationPaths appPaths, IJsonSerializer json, IHttpClient httpClient, IProcessFactory processFactory, IServerConfigurationManager config, IAssemblyInfo assemblyInfo)
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2016-02-12 08:01:38 +01:00
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{
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_logger = logger;
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_fileSystem = fileSystem;
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_mediaEncoder = mediaEncoder;
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_appPaths = appPaths;
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_json = json;
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_httpClient = httpClient;
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_processFactory = processFactory;
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_config = config;
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_assemblyInfo = assemblyInfo;
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2016-09-08 08:41:49 +02:00
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}
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2017-02-21 19:04:35 +01:00
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private bool CopySubtitles
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{
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get
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{
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return false;
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//return string.Equals(OutputFormat, "mkv", StringComparison.OrdinalIgnoreCase);
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}
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}
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2016-05-10 07:15:06 +02:00
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public string GetOutputPath(MediaSourceInfo mediaSource, string targetFile)
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{
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return Path.ChangeExtension(targetFile, ".ts");
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}
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public async Task Record(IDirectStreamProvider directStreamProvider, MediaSourceInfo mediaSource, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)
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{
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// The media source is infinite so we need to handle stopping ourselves
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var durationToken = new CancellationTokenSource(duration);
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cancellationToken = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, durationToken.Token).Token;
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2016-09-05 22:07:36 +02:00
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2016-09-29 14:55:49 +02:00
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await RecordFromFile(mediaSource, mediaSource.Path, targetFile, duration, onStarted, cancellationToken).ConfigureAwait(false);
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2018-12-13 14:18:25 +01:00
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_logger.LogInformation("Recording completed to file {0}", targetFile);
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2016-09-14 18:21:33 +02:00
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}
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private EncodingOptions GetEncodingOptions()
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{
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return _config.GetConfiguration<EncodingOptions>("encoding");
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}
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private Task RecordFromFile(MediaSourceInfo mediaSource, string inputFile, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)
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{
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_targetPath = targetFile;
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_fileSystem.CreateDirectory(_fileSystem.GetDirectoryName(targetFile));
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var process = _processFactory.Create(new ProcessOptions
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{
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CreateNoWindow = true,
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UseShellExecute = false,
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2016-11-04 00:35:19 +01:00
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// Must consume both stdout and stderr or deadlocks may occur
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//RedirectStandardOutput = true,
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RedirectStandardError = true,
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RedirectStandardInput = true,
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2016-02-12 08:01:38 +01:00
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2016-11-04 00:35:19 +01:00
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FileName = _mediaEncoder.EncoderPath,
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Arguments = GetCommandLineArgs(mediaSource, inputFile, targetFile, duration),
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2016-02-12 08:01:38 +01:00
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IsHidden = true,
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ErrorDialog = false,
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EnableRaisingEvents = true
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});
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2016-02-12 08:01:38 +01:00
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_process = process;
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var commandLineLogMessage = process.StartInfo.FileName + " " + process.StartInfo.Arguments;
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_logger.LogInformation(commandLineLogMessage);
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2016-02-12 08:01:38 +01:00
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2016-11-30 20:50:39 +01:00
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var logFilePath = Path.Combine(_appPaths.LogDirectoryPath, "record-transcode-" + Guid.NewGuid() + ".txt");
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_fileSystem.CreateDirectory(_fileSystem.GetDirectoryName(logFilePath));
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2016-02-12 08:01:38 +01:00
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2016-11-30 20:50:39 +01:00
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// FFMpeg writes debug/error info to stderr. This is useful when debugging so let's put it in the log directory.
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_logFileStream = _fileSystem.GetFileStream(logFilePath, FileOpenMode.Create, FileAccessMode.Write, FileShareMode.Read, true);
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var commandLineLogMessageBytes = Encoding.UTF8.GetBytes(_json.SerializeToString(mediaSource) + Environment.NewLine + Environment.NewLine + commandLineLogMessage + Environment.NewLine + Environment.NewLine);
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_logFileStream.Write(commandLineLogMessageBytes, 0, commandLineLogMessageBytes.Length);
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2016-02-12 08:01:38 +01:00
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2016-09-29 14:55:49 +02:00
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process.Exited += (sender, args) => OnFfMpegProcessExited(process, inputFile);
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2016-02-12 08:01:38 +01:00
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process.Start();
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cancellationToken.Register(Stop);
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// MUST read both stdout and stderr asynchronously or a deadlock may occurr
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2016-07-02 04:16:05 +02:00
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//process.BeginOutputReadLine();
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2016-02-29 17:25:21 +01:00
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onStarted();
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2016-11-30 20:50:39 +01:00
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// Important - don't await the log task or we won't be able to kill ffmpeg when the user stops playback
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StartStreamingLog(process.StandardError.BaseStream, _logFileStream);
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2018-12-13 14:18:25 +01:00
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_logger.LogInformation("ffmpeg recording process started for {0}", _targetPath);
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2016-09-30 20:43:59 +02:00
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2016-06-22 06:40:11 +02:00
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return _taskCompletionSource.Task;
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2016-02-12 08:01:38 +01:00
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}
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2016-06-22 06:40:11 +02:00
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private string GetCommandLineArgs(MediaSourceInfo mediaSource, string inputTempFile, string targetFile, TimeSpan duration)
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2016-02-12 08:01:38 +01:00
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{
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string videoArgs;
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if (EncodeVideo(mediaSource))
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{
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var maxBitrate = 25000000;
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videoArgs = string.Format(
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2016-09-30 20:43:59 +02:00
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"-codec:v:0 libx264 -force_key_frames \"expr:gte(t,n_forced*5)\" {0} -pix_fmt yuv420p -preset superfast -crf 23 -b:v {1} -maxrate {1} -bufsize ({1}*2) -vsync -1 -profile:v high -level 41",
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GetOutputSizeParam(),
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maxBitrate.ToString(CultureInfo.InvariantCulture));
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}
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else
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{
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videoArgs = "-codec:v:0 copy";
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}
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2017-05-15 21:45:39 +02:00
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videoArgs += " -fflags +genpts";
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2016-06-22 06:40:11 +02:00
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var durationParam = " -t " + _mediaEncoder.GetTimeParameter(duration.Ticks);
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2018-09-12 19:26:21 +02:00
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durationParam = string.Empty;
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2017-05-02 14:53:21 +02:00
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var flags = new List<string>();
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if (mediaSource.IgnoreDts)
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{
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2017-05-02 14:53:21 +02:00
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flags.Add("+igndts");
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}
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if (mediaSource.IgnoreIndex)
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{
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flags.Add("+ignidx");
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}
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2017-05-15 21:45:39 +02:00
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if (mediaSource.GenPtsInput)
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{
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flags.Add("+genpts");
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}
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2017-04-21 22:03:07 +02:00
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2017-05-21 09:25:49 +02:00
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var inputModifier = "-async 1 -vsync -1";
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2016-09-30 08:50:06 +02:00
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2017-05-02 14:53:21 +02:00
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if (flags.Count > 0)
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{
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inputModifier += " -fflags " + string.Join("", flags.ToArray());
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}
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2017-08-11 23:55:48 +02:00
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var videoStream = mediaSource.VideoStream;
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2018-09-12 19:26:21 +02:00
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string videoDecoder = null;
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2017-08-11 23:55:48 +02:00
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2018-09-12 19:26:21 +02:00
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if (!string.IsNullOrEmpty(videoDecoder))
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{
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2017-08-11 23:55:48 +02:00
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inputModifier += " " + videoDecoder;
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2016-09-30 08:50:06 +02:00
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}
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2017-05-02 14:53:21 +02:00
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if (mediaSource.ReadAtNativeFramerate)
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{
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2017-05-21 09:25:49 +02:00
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inputModifier += " -re";
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}
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if (mediaSource.RequiresLooping)
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{
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2018-09-12 19:26:21 +02:00
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inputModifier += " -stream_loop -1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 2";
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2016-02-12 08:01:38 +01:00
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}
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2016-11-09 18:25:33 +01:00
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var analyzeDurationSeconds = 5;
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var analyzeDuration = " -analyzeduration " +
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(analyzeDurationSeconds * 1000000).ToString(CultureInfo.InvariantCulture);
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inputModifier += analyzeDuration;
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2016-11-09 18:25:33 +01:00
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2017-02-21 19:04:35 +01:00
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var subtitleArgs = CopySubtitles ? " -codec:s copy" : " -sn";
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2017-05-03 23:53:33 +02:00
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//var outputParam = string.Equals(Path.GetExtension(targetFile), ".mp4", StringComparison.OrdinalIgnoreCase) ?
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// " -f mp4 -movflags frag_keyframe+empty_moov" :
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// string.Empty;
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var outputParam = string.Empty;
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2017-03-26 06:22:30 +02:00
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2017-05-02 14:53:21 +02:00
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var commandLineArgs = string.Format("-i \"{0}\"{5} {2} -map_metadata -1 -threads 0 {3}{4}{6} -y \"{1}\"",
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inputTempFile,
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targetFile,
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videoArgs,
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GetAudioArgs(mediaSource),
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subtitleArgs,
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durationParam,
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outputParam);
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return inputModifier + " " + commandLineArgs;
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2016-02-12 08:01:38 +01:00
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}
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private string GetAudioArgs(MediaSourceInfo mediaSource)
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{
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var mediaStreams = mediaSource.MediaStreams ?? new List<MediaStream>();
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2016-06-15 20:56:37 +02:00
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var inputAudioCodec = mediaStreams.Where(i => i.Type == MediaStreamType.Audio).Select(i => i.Codec).FirstOrDefault() ?? string.Empty;
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2018-09-12 19:26:21 +02:00
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return "-codec:a:0 copy";
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2018-09-12 19:26:21 +02:00
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//var audioChannels = 2;
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//var audioStream = mediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Audio);
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//if (audioStream != null)
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//{
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// audioChannels = audioStream.Channels ?? audioChannels;
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//}
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//return "-codec:a:0 aac -strict experimental -ab 320000";
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2016-02-12 08:01:38 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private bool EncodeVideo(MediaSourceInfo mediaSource)
|
|
|
|
|
{
|
2018-09-12 19:26:21 +02:00
|
|
|
|
return false;
|
2016-02-12 08:01:38 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
protected string GetOutputSizeParam()
|
|
|
|
|
{
|
|
|
|
|
var filters = new List<string>();
|
2018-09-12 19:26:21 +02:00
|
|
|
|
|
|
|
|
|
filters.Add("yadif=0:-1:0");
|
2016-02-12 08:01:38 +01:00
|
|
|
|
|
|
|
|
|
var output = string.Empty;
|
|
|
|
|
|
|
|
|
|
if (filters.Count > 0)
|
|
|
|
|
{
|
|
|
|
|
output += string.Format(" -vf \"{0}\"", string.Join(",", filters.ToArray()));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return output;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private void Stop()
|
|
|
|
|
{
|
|
|
|
|
if (!_hasExited)
|
|
|
|
|
{
|
|
|
|
|
try
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogInformation("Stopping ffmpeg recording process for {path}", _targetPath);
|
2016-02-12 08:01:38 +01:00
|
|
|
|
|
2016-11-30 20:50:39 +01:00
|
|
|
|
//process.Kill();
|
|
|
|
|
_process.StandardInput.WriteLine("q");
|
2016-02-12 08:01:38 +01:00
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogError(ex, "Error stopping recording transcoding job for {path}", _targetPath);
|
2017-01-20 18:53:48 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (_hasExited)
|
|
|
|
|
{
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
try
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogInformation("Calling recording process.WaitForExit for {path}", _targetPath);
|
2017-01-20 18:53:48 +01:00
|
|
|
|
|
2017-02-17 22:11:13 +01:00
|
|
|
|
if (_process.WaitForExit(10000))
|
2017-01-20 18:53:48 +01:00
|
|
|
|
{
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogError(ex, "Error waiting for recording process to exit for {path}", _targetPath);
|
2017-01-20 18:53:48 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (_hasExited)
|
|
|
|
|
{
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
try
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogInformation("Killing ffmpeg recording process for {path}", _targetPath);
|
2017-01-20 18:53:48 +01:00
|
|
|
|
|
|
|
|
|
_process.Kill();
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogError(ex, "Error killing recording transcoding job for {path}", _targetPath);
|
2016-02-12 08:01:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
/// Processes the exited.
|
|
|
|
|
/// </summary>
|
2016-11-04 00:35:19 +01:00
|
|
|
|
private void OnFfMpegProcessExited(IProcess process, string inputFile)
|
2016-02-12 08:01:38 +01:00
|
|
|
|
{
|
|
|
|
|
_hasExited = true;
|
|
|
|
|
|
2016-11-30 20:50:39 +01:00
|
|
|
|
DisposeLogStream();
|
|
|
|
|
|
2016-02-12 08:01:38 +01:00
|
|
|
|
try
|
|
|
|
|
{
|
2016-11-30 20:50:39 +01:00
|
|
|
|
var exitCode = process.ExitCode;
|
2016-03-07 05:56:45 +01:00
|
|
|
|
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogInformation("FFMpeg recording exited with code {ExitCode} for {path}", exitCode, _targetPath);
|
2016-03-07 05:56:45 +01:00
|
|
|
|
|
|
|
|
|
if (exitCode == 0)
|
|
|
|
|
{
|
|
|
|
|
_taskCompletionSource.TrySetResult(true);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_taskCompletionSource.TrySetException(new Exception(string.Format("Recording for {path} failed. Exit code {ExitCode}", _targetPath, exitCode)));
|
2016-03-07 05:56:45 +01:00
|
|
|
|
}
|
2016-02-12 08:01:38 +01:00
|
|
|
|
}
|
|
|
|
|
catch
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogError("FFMpeg recording exited with an error for {path}.", _targetPath);
|
|
|
|
|
_taskCompletionSource.TrySetException(new Exception(string.Format("Recording for {path} failed", _targetPath)));
|
2016-02-12 08:01:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
2016-11-30 20:50:39 +01:00
|
|
|
|
|
|
|
|
|
private void DisposeLogStream()
|
|
|
|
|
{
|
|
|
|
|
if (_logFileStream != null)
|
|
|
|
|
{
|
|
|
|
|
try
|
|
|
|
|
{
|
|
|
|
|
_logFileStream.Dispose();
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogError(ex, "Error disposing recording log stream");
|
2016-11-30 20:50:39 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
_logFileStream = null;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private async void StartStreamingLog(Stream source, Stream target)
|
|
|
|
|
{
|
|
|
|
|
try
|
|
|
|
|
{
|
|
|
|
|
using (var reader = new StreamReader(source))
|
|
|
|
|
{
|
|
|
|
|
while (!reader.EndOfStream)
|
|
|
|
|
{
|
|
|
|
|
var line = await reader.ReadLineAsync().ConfigureAwait(false);
|
|
|
|
|
|
|
|
|
|
var bytes = Encoding.UTF8.GetBytes(Environment.NewLine + line);
|
|
|
|
|
|
|
|
|
|
await target.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
|
|
|
|
|
await target.FlushAsync().ConfigureAwait(false);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
catch (ObjectDisposedException)
|
|
|
|
|
{
|
|
|
|
|
// Don't spam the log. This doesn't seem to throw in windows, but sometimes under linux
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
2018-12-20 13:11:26 +01:00
|
|
|
|
_logger.LogError(ex, "Error reading ffmpeg recording log");
|
2016-11-30 20:50:39 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
2016-02-12 08:01:38 +01:00
|
|
|
|
}
|
2018-12-13 14:18:25 +01:00
|
|
|
|
}
|