|
|
|
|
@ -0,0 +1,255 @@
|
|
|
|
|
using System;
|
|
|
|
|
using System.Collections.Generic;
|
|
|
|
|
using System.Diagnostics;
|
|
|
|
|
using System.Globalization;
|
|
|
|
|
using System.IO;
|
|
|
|
|
using System.Linq;
|
|
|
|
|
using System.Text;
|
|
|
|
|
using System.Threading;
|
|
|
|
|
using System.Threading.Tasks;
|
|
|
|
|
using CommonIO;
|
|
|
|
|
using MediaBrowser.Common.Configuration;
|
|
|
|
|
using MediaBrowser.Controller.MediaEncoding;
|
|
|
|
|
using MediaBrowser.Model.Dto;
|
|
|
|
|
using MediaBrowser.Model.Entities;
|
|
|
|
|
using MediaBrowser.Model.Logging;
|
|
|
|
|
using MediaBrowser.Model.Serialization;
|
|
|
|
|
|
|
|
|
|
namespace MediaBrowser.Server.Implementations.LiveTv.EmbyTV
|
|
|
|
|
{
|
|
|
|
|
public class EncodedRecorder : IRecorder
|
|
|
|
|
{
|
|
|
|
|
private readonly ILogger _logger;
|
|
|
|
|
private readonly IFileSystem _fileSystem;
|
|
|
|
|
private readonly IMediaEncoder _mediaEncoder;
|
|
|
|
|
private readonly IApplicationPaths _appPaths;
|
|
|
|
|
private bool _hasExited;
|
|
|
|
|
private Stream _logFileStream;
|
|
|
|
|
private string _targetPath;
|
|
|
|
|
private Process _process;
|
|
|
|
|
private readonly IJsonSerializer _json;
|
|
|
|
|
|
|
|
|
|
public EncodedRecorder(ILogger logger, IFileSystem fileSystem, IMediaEncoder mediaEncoder, IApplicationPaths appPaths, IJsonSerializer json)
|
|
|
|
|
{
|
|
|
|
|
_logger = logger;
|
|
|
|
|
_fileSystem = fileSystem;
|
|
|
|
|
_mediaEncoder = mediaEncoder;
|
|
|
|
|
_appPaths = appPaths;
|
|
|
|
|
_json = json;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
public async Task Record(MediaSourceInfo mediaSource, string targetFile, Action onStarted, CancellationToken cancellationToken)
|
|
|
|
|
{
|
|
|
|
|
_targetPath = targetFile;
|
|
|
|
|
_fileSystem.CreateDirectory(Path.GetDirectoryName(targetFile));
|
|
|
|
|
|
|
|
|
|
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,
|
|
|
|
|
RedirectStandardInput = true,
|
|
|
|
|
|
|
|
|
|
FileName = _mediaEncoder.EncoderPath,
|
|
|
|
|
Arguments = GetCommandLineArgs(mediaSource, targetFile),
|
|
|
|
|
|
|
|
|
|
WindowStyle = ProcessWindowStyle.Hidden,
|
|
|
|
|
ErrorDialog = false
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
EnableRaisingEvents = true
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
_process = process;
|
|
|
|
|
|
|
|
|
|
var commandLineLogMessage = process.StartInfo.FileName + " " + process.StartInfo.Arguments;
|
|
|
|
|
_logger.Info(commandLineLogMessage);
|
|
|
|
|
|
|
|
|
|
var logFilePath = Path.Combine(_appPaths.LogDirectoryPath, "record-transcode-" + Guid.NewGuid() + ".txt");
|
|
|
|
|
_fileSystem.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.
|
|
|
|
|
_logFileStream = _fileSystem.GetFileStream(logFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, true);
|
|
|
|
|
|
|
|
|
|
var commandLineLogMessageBytes = Encoding.UTF8.GetBytes(_json.SerializeToString(mediaSource) + Environment.NewLine + Environment.NewLine + commandLineLogMessage + Environment.NewLine + Environment.NewLine);
|
|
|
|
|
await _logFileStream.WriteAsync(commandLineLogMessageBytes, 0, commandLineLogMessageBytes.Length, cancellationToken).ConfigureAwait(false);
|
|
|
|
|
|
|
|
|
|
process.Exited += (sender, args) => OnFfMpegProcessExited(process);
|
|
|
|
|
|
|
|
|
|
process.Start();
|
|
|
|
|
|
|
|
|
|
cancellationToken.Register(Stop);
|
|
|
|
|
|
|
|
|
|
// MUST read both stdout and stderr asynchronously or a deadlock may occurr
|
|
|
|
|
process.BeginOutputReadLine();
|
|
|
|
|
|
|
|
|
|
// Important - don't await the log task or we won't be able to kill ffmpeg when the user stops playback
|
|
|
|
|
StartStreamingLog(process.StandardError.BaseStream, _logFileStream);
|
|
|
|
|
|
|
|
|
|
// Wait for the file to exist before proceeeding
|
|
|
|
|
while (!_hasExited)
|
|
|
|
|
{
|
|
|
|
|
await Task.Delay(100, cancellationToken).ConfigureAwait(false);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private string GetCommandLineArgs(MediaSourceInfo mediaSource, string targetFile)
|
|
|
|
|
{
|
|
|
|
|
string videoArgs;
|
|
|
|
|
if (EncodeVideo(mediaSource))
|
|
|
|
|
{
|
|
|
|
|
var maxBitrate = 25000000;
|
|
|
|
|
videoArgs = string.Format(
|
|
|
|
|
"-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 vfr -profile:v high -level 41",
|
|
|
|
|
GetOutputSizeParam(),
|
|
|
|
|
maxBitrate.ToString(CultureInfo.InvariantCulture));
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
videoArgs = "-codec:v:0 copy";
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
var commandLineArgs = "-fflags +genpts -i \"{0}\" -sn {2} -map_metadata -1 -threads 0 {3} -y \"{1}\"";
|
|
|
|
|
|
|
|
|
|
if (mediaSource.ReadAtNativeFramerate)
|
|
|
|
|
{
|
|
|
|
|
commandLineArgs = "-re " + commandLineArgs;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
commandLineArgs = string.Format(commandLineArgs, mediaSource.Path, targetFile, videoArgs, GetAudioArgs(mediaSource));
|
|
|
|
|
|
|
|
|
|
return commandLineArgs;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private string GetAudioArgs(MediaSourceInfo mediaSource)
|
|
|
|
|
{
|
|
|
|
|
var copyAudio = new[] {"aac", "mp3"};
|
|
|
|
|
var mediaStreams = mediaSource.MediaStreams ?? new List<MediaStream>();
|
|
|
|
|
if (mediaStreams.Any(i => i.Type == MediaStreamType.Audio && copyAudio.Contains(i.Codec, StringComparer.OrdinalIgnoreCase)))
|
|
|
|
|
{
|
|
|
|
|
return "-codec:a:0 copy";
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
var audioChannels = 2;
|
|
|
|
|
var audioStream = mediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Audio);
|
|
|
|
|
if (audioStream != null)
|
|
|
|
|
{
|
|
|
|
|
audioChannels = audioStream.Channels ?? audioChannels;
|
|
|
|
|
}
|
|
|
|
|
return "-codec:a:0 aac -strict experimental -ab 320000 -ac " + audioChannels.ToString(CultureInfo.InvariantCulture);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private bool EncodeVideo(MediaSourceInfo mediaSource)
|
|
|
|
|
{
|
|
|
|
|
var mediaStreams = mediaSource.MediaStreams ?? new List<MediaStream>();
|
|
|
|
|
return !mediaStreams.Any(i => i.Type == MediaStreamType.Video && string.Equals(i.Codec, "h264", StringComparison.OrdinalIgnoreCase));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
protected string GetOutputSizeParam()
|
|
|
|
|
{
|
|
|
|
|
var filters = new List<string>();
|
|
|
|
|
|
|
|
|
|
filters.Add("yadif=0:-1:0");
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
|
{
|
|
|
|
|
_logger.Info("Killing ffmpeg recording process for {0}", _targetPath);
|
|
|
|
|
|
|
|
|
|
//process.Kill();
|
|
|
|
|
_process.StandardInput.WriteLine("q");
|
|
|
|
|
|
|
|
|
|
// Need to wait because killing is asynchronous
|
|
|
|
|
_process.WaitForExit(5000);
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
|
|
|
|
_logger.ErrorException("Error killing transcoding job for {0}", ex, _targetPath);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
/// Processes the exited.
|
|
|
|
|
/// </summary>
|
|
|
|
|
/// <param name="process">The process.</param>
|
|
|
|
|
private void OnFfMpegProcessExited(Process process)
|
|
|
|
|
{
|
|
|
|
|
_hasExited = true;
|
|
|
|
|
|
|
|
|
|
_logger.Debug("Disposing stream resources");
|
|
|
|
|
DisposeLogStream();
|
|
|
|
|
|
|
|
|
|
try
|
|
|
|
|
{
|
|
|
|
|
_logger.Info("FFMpeg exited with code {0}", process.ExitCode);
|
|
|
|
|
}
|
|
|
|
|
catch
|
|
|
|
|
{
|
|
|
|
|
_logger.Error("FFMpeg exited with an error.");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private void DisposeLogStream()
|
|
|
|
|
{
|
|
|
|
|
if (_logFileStream != null)
|
|
|
|
|
{
|
|
|
|
|
try
|
|
|
|
|
{
|
|
|
|
|
_logFileStream.Dispose();
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
|
|
|
|
_logger.ErrorException("Error disposing log stream", ex);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
_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)
|
|
|
|
|
{
|
|
|
|
|
_logger.ErrorException("Error reading ffmpeg log", ex);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
Luke Pulverenti
8 years ago