You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1080 lines
38 KiB
1080 lines
38 KiB
using MediaBrowser.Common.Configuration;
|
|
using MediaBrowser.Common.IO;
|
|
using MediaBrowser.Controller.Channels;
|
|
using MediaBrowser.Controller.Configuration;
|
|
using MediaBrowser.Controller.Library;
|
|
using MediaBrowser.Controller.LiveTv;
|
|
using MediaBrowser.Controller.MediaEncoding;
|
|
using MediaBrowser.Controller.Session;
|
|
using MediaBrowser.MediaEncoding.Subtitles;
|
|
using MediaBrowser.Model.Configuration;
|
|
using MediaBrowser.Model.Dlna;
|
|
using MediaBrowser.Model.Drawing;
|
|
using MediaBrowser.Model.Entities;
|
|
using MediaBrowser.Model.IO;
|
|
using MediaBrowser.Model.Logging;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Diagnostics;
|
|
using System.Globalization;
|
|
using System.IO;
|
|
using System.Text;
|
|
using System.Threading;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace MediaBrowser.MediaEncoding.Encoder
|
|
{
|
|
public abstract class BaseEncoder
|
|
{
|
|
protected readonly MediaEncoder MediaEncoder;
|
|
protected readonly ILogger Logger;
|
|
protected readonly IServerConfigurationManager ConfigurationManager;
|
|
protected readonly IFileSystem FileSystem;
|
|
protected readonly ILiveTvManager LiveTvManager;
|
|
protected readonly IIsoManager IsoManager;
|
|
protected readonly ILibraryManager LibraryManager;
|
|
protected readonly IChannelManager ChannelManager;
|
|
protected readonly ISessionManager SessionManager;
|
|
protected readonly ISubtitleEncoder SubtitleEncoder;
|
|
|
|
protected readonly CultureInfo UsCulture = new CultureInfo("en-US");
|
|
|
|
public BaseEncoder(MediaEncoder mediaEncoder,
|
|
ILogger logger,
|
|
IServerConfigurationManager configurationManager,
|
|
IFileSystem fileSystem,
|
|
ILiveTvManager liveTvManager,
|
|
IIsoManager isoManager,
|
|
ILibraryManager libraryManager,
|
|
IChannelManager channelManager,
|
|
ISessionManager sessionManager, ISubtitleEncoder subtitleEncoder)
|
|
{
|
|
MediaEncoder = mediaEncoder;
|
|
Logger = logger;
|
|
ConfigurationManager = configurationManager;
|
|
FileSystem = fileSystem;
|
|
LiveTvManager = liveTvManager;
|
|
IsoManager = isoManager;
|
|
LibraryManager = libraryManager;
|
|
ChannelManager = channelManager;
|
|
SessionManager = sessionManager;
|
|
SubtitleEncoder = subtitleEncoder;
|
|
}
|
|
|
|
public async Task<EncodingJob> Start(EncodingJobOptions options,
|
|
IProgress<double> progress,
|
|
CancellationToken cancellationToken)
|
|
{
|
|
var encodingJob = await new EncodingJobFactory(Logger, LiveTvManager, LibraryManager, ChannelManager)
|
|
.CreateJob(options, IsVideoEncoder, progress, cancellationToken).ConfigureAwait(false);
|
|
|
|
encodingJob.OutputFilePath = GetOutputFilePath(encodingJob);
|
|
Directory.CreateDirectory(Path.GetDirectoryName(encodingJob.OutputFilePath));
|
|
|
|
if (options.Context == EncodingContext.Static && encodingJob.IsInputVideo)
|
|
{
|
|
encodingJob.ReadInputAtNativeFramerate = true;
|
|
}
|
|
|
|
await AcquireResources(encodingJob, cancellationToken).ConfigureAwait(false);
|
|
|
|
var commandLineArgs = GetCommandLineArguments(encodingJob);
|
|
|
|
if (GetEncodingOptions().EnableDebugLogging)
|
|
{
|
|
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,
|
|
RedirectStandardInput = true,
|
|
|
|
FileName = MediaEncoder.EncoderPath,
|
|
Arguments = commandLineArgs,
|
|
|
|
WindowStyle = ProcessWindowStyle.Hidden,
|
|
ErrorDialog = false
|
|
},
|
|
|
|
EnableRaisingEvents = true
|
|
};
|
|
|
|
var workingDirectory = GetWorkingDirectory(options);
|
|
if (!string.IsNullOrWhiteSpace(workingDirectory))
|
|
{
|
|
process.StartInfo.WorkingDirectory = workingDirectory;
|
|
}
|
|
|
|
OnTranscodeBeginning(encodingJob);
|
|
|
|
var commandLineLogMessage = process.StartInfo.FileName + " " + process.StartInfo.Arguments;
|
|
Logger.Info(commandLineLogMessage);
|
|
|
|
var logFilePath = Path.Combine(ConfigurationManager.CommonApplicationPaths.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.
|
|
encodingJob.LogFileStream = FileSystem.GetFileStream(logFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, true);
|
|
|
|
var commandLineLogMessageBytes = Encoding.UTF8.GetBytes(commandLineLogMessage + Environment.NewLine + Environment.NewLine);
|
|
await encodingJob.LogFileStream.WriteAsync(commandLineLogMessageBytes, 0, commandLineLogMessageBytes.Length, cancellationToken).ConfigureAwait(false);
|
|
|
|
process.Exited += (sender, args) => OnFfMpegProcessExited(process, encodingJob);
|
|
|
|
try
|
|
{
|
|
process.Start();
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error starting ffmpeg", ex);
|
|
|
|
OnTranscodeFailedToStart(encodingJob.OutputFilePath, encodingJob);
|
|
|
|
throw;
|
|
}
|
|
|
|
cancellationToken.Register(() => Cancel(process, encodingJob));
|
|
|
|
// 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
|
|
new JobLogger(Logger).StartStreamingLog(encodingJob, process.StandardError.BaseStream, encodingJob.LogFileStream);
|
|
|
|
// Wait for the file to exist before proceeeding
|
|
while (!File.Exists(encodingJob.OutputFilePath) && !encodingJob.HasExited)
|
|
{
|
|
await Task.Delay(100, cancellationToken).ConfigureAwait(false);
|
|
}
|
|
|
|
return encodingJob;
|
|
}
|
|
|
|
private void Cancel(Process process, EncodingJob job)
|
|
{
|
|
Logger.Info("Killing ffmpeg process for {0}", job.OutputFilePath);
|
|
|
|
//process.Kill();
|
|
process.StandardInput.WriteLine("q");
|
|
|
|
job.IsCancelled = true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Processes the exited.
|
|
/// </summary>
|
|
/// <param name="process">The process.</param>
|
|
/// <param name="job">The job.</param>
|
|
private void OnFfMpegProcessExited(Process process, EncodingJob job)
|
|
{
|
|
job.HasExited = true;
|
|
|
|
Logger.Debug("Disposing stream resources");
|
|
job.Dispose();
|
|
|
|
var isSuccesful = false;
|
|
|
|
try
|
|
{
|
|
var exitCode = process.ExitCode;
|
|
Logger.Info("FFMpeg exited with code {0}", exitCode);
|
|
|
|
isSuccesful = exitCode == 0;
|
|
}
|
|
catch
|
|
{
|
|
Logger.Error("FFMpeg exited with an error.");
|
|
}
|
|
|
|
if (isSuccesful && !job.IsCancelled)
|
|
{
|
|
job.TaskCompletionSource.TrySetResult(true);
|
|
}
|
|
else if (job.IsCancelled)
|
|
{
|
|
try
|
|
{
|
|
DeleteFiles(job);
|
|
}
|
|
catch
|
|
{
|
|
}
|
|
try
|
|
{
|
|
job.TaskCompletionSource.TrySetException(new OperationCanceledException());
|
|
}
|
|
catch
|
|
{
|
|
}
|
|
}
|
|
else
|
|
{
|
|
try
|
|
{
|
|
DeleteFiles(job);
|
|
}
|
|
catch
|
|
{
|
|
}
|
|
try
|
|
{
|
|
job.TaskCompletionSource.TrySetException(new ApplicationException("Encoding failed"));
|
|
}
|
|
catch
|
|
{
|
|
}
|
|
}
|
|
|
|
// This causes on exited to be called twice:
|
|
//try
|
|
//{
|
|
// // Dispose the process
|
|
// process.Dispose();
|
|
//}
|
|
//catch (Exception ex)
|
|
//{
|
|
// Logger.ErrorException("Error disposing ffmpeg.", ex);
|
|
//}
|
|
}
|
|
|
|
protected virtual void DeleteFiles(EncodingJob job)
|
|
{
|
|
FileSystem.DeleteFile(job.OutputFilePath);
|
|
}
|
|
|
|
private void OnTranscodeBeginning(EncodingJob job)
|
|
{
|
|
job.ReportTranscodingProgress(null, null, null, null);
|
|
}
|
|
|
|
private void OnTranscodeFailedToStart(string path, EncodingJob job)
|
|
{
|
|
if (!string.IsNullOrWhiteSpace(job.Options.DeviceId))
|
|
{
|
|
SessionManager.ClearTranscodingInfo(job.Options.DeviceId);
|
|
}
|
|
}
|
|
|
|
protected abstract bool IsVideoEncoder { get; }
|
|
|
|
protected virtual string GetWorkingDirectory(EncodingJobOptions options)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
protected EncodingOptions GetEncodingOptions()
|
|
{
|
|
return ConfigurationManager.GetConfiguration<EncodingOptions>("encoding");
|
|
}
|
|
|
|
protected abstract string GetCommandLineArguments(EncodingJob job);
|
|
|
|
private string GetOutputFilePath(EncodingJob state)
|
|
{
|
|
var folder = ConfigurationManager.ApplicationPaths.TranscodingTempPath;
|
|
|
|
var outputFileExtension = GetOutputFileExtension(state);
|
|
var context = state.Options.Context;
|
|
|
|
var filename = state.Id + (outputFileExtension ?? string.Empty).ToLower();
|
|
return Path.Combine(folder, context.ToString().ToLower(), filename);
|
|
}
|
|
|
|
protected virtual string GetOutputFileExtension(EncodingJob state)
|
|
{
|
|
if (!string.IsNullOrWhiteSpace(state.Options.OutputContainer))
|
|
{
|
|
return "." + state.Options.OutputContainer;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the number of threads.
|
|
/// </summary>
|
|
/// <returns>System.Int32.</returns>
|
|
protected int GetNumberOfThreads(EncodingJob job, bool isWebm)
|
|
{
|
|
// Only need one thread for sync
|
|
if (job.Options.Context == EncodingContext.Static)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
if (isWebm)
|
|
{
|
|
// Recommended per docs
|
|
return Math.Max(Environment.ProcessorCount - 1, 2);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
protected EncodingQuality GetQualitySetting()
|
|
{
|
|
var quality = GetEncodingOptions().EncodingQuality;
|
|
|
|
if (quality == EncodingQuality.Auto)
|
|
{
|
|
var cpuCount = Environment.ProcessorCount;
|
|
|
|
if (cpuCount >= 4)
|
|
{
|
|
//return EncodingQuality.HighQuality;
|
|
}
|
|
|
|
return EncodingQuality.HighSpeed;
|
|
}
|
|
|
|
return quality;
|
|
}
|
|
|
|
protected string GetInputModifier(EncodingJob job, bool genPts = true)
|
|
{
|
|
var inputModifier = string.Empty;
|
|
|
|
var probeSize = GetProbeSizeArgument(job);
|
|
inputModifier += " " + probeSize;
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
var userAgentParam = GetUserAgentParam(job);
|
|
|
|
if (!string.IsNullOrWhiteSpace(userAgentParam))
|
|
{
|
|
inputModifier += " " + userAgentParam;
|
|
}
|
|
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
inputModifier += " " + GetFastSeekCommandLineParameter(job.Options);
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
if (job.IsVideoRequest && genPts)
|
|
{
|
|
inputModifier += " -fflags +genpts";
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(job.InputAudioSync))
|
|
{
|
|
inputModifier += " -async " + job.InputAudioSync;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(job.InputVideoSync))
|
|
{
|
|
inputModifier += " -vsync " + job.InputVideoSync;
|
|
}
|
|
|
|
if (job.ReadInputAtNativeFramerate)
|
|
{
|
|
inputModifier += " -re";
|
|
}
|
|
|
|
return inputModifier;
|
|
}
|
|
|
|
private string GetUserAgentParam(EncodingJob job)
|
|
{
|
|
string useragent = null;
|
|
|
|
job.RemoteHttpHeaders.TryGetValue("User-Agent", out useragent);
|
|
|
|
if (!string.IsNullOrWhiteSpace(useragent))
|
|
{
|
|
return "-user-agent \"" + useragent + "\"";
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the probe size argument.
|
|
/// </summary>
|
|
/// <param name="job">The job.</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetProbeSizeArgument(EncodingJob job)
|
|
{
|
|
if (job.PlayableStreamFileNames.Count > 0)
|
|
{
|
|
return MediaEncoder.GetProbeSizeArgument(job.PlayableStreamFileNames.ToArray(), job.InputProtocol);
|
|
}
|
|
|
|
return MediaEncoder.GetProbeSizeArgument(new[] { job.MediaPath }, job.InputProtocol);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the fast seek command line parameter.
|
|
/// </summary>
|
|
/// <param name="options">The options.</param>
|
|
/// <returns>System.String.</returns>
|
|
/// <value>The fast seek command line parameter.</value>
|
|
protected string GetFastSeekCommandLineParameter(EncodingJobOptions options)
|
|
{
|
|
var time = options.StartTimeTicks;
|
|
|
|
if (time.HasValue && time.Value > 0)
|
|
{
|
|
return string.Format("-ss {0}", MediaEncoder.GetTimeParameter(time.Value));
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the input argument.
|
|
/// </summary>
|
|
/// <param name="job">The job.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetInputArgument(EncodingJob job)
|
|
{
|
|
var arg = "-i " + GetInputPathArgument(job);
|
|
|
|
if (job.SubtitleStream != null)
|
|
{
|
|
if (job.SubtitleStream.IsExternal && !job.SubtitleStream.IsTextSubtitleStream)
|
|
{
|
|
arg += " -i \"" + job.SubtitleStream.Path + "\"";
|
|
}
|
|
}
|
|
|
|
return arg;
|
|
}
|
|
|
|
private string GetInputPathArgument(EncodingJob job)
|
|
{
|
|
//if (job.InputProtocol == MediaProtocol.File &&
|
|
// job.RunTimeTicks.HasValue &&
|
|
// job.VideoType == VideoType.VideoFile &&
|
|
// !string.Equals(job.OutputVideoCodec, "copy", StringComparison.OrdinalIgnoreCase))
|
|
//{
|
|
// if (job.RunTimeTicks.Value >= TimeSpan.FromMinutes(5).Ticks && job.IsInputVideo)
|
|
// {
|
|
// if (SupportsThrottleWithStream)
|
|
// {
|
|
// var url = "http://localhost:" + ServerConfigurationManager.Configuration.HttpServerPortNumber.ToString(UsCulture) + "/mediabrowser/videos/" + job.Request.Id + "/stream?static=true&Throttle=true&mediaSourceId=" + job.Request.MediaSourceId;
|
|
|
|
// url += "&transcodingJobId=" + transcodingJobId;
|
|
|
|
// return string.Format("\"{0}\"", url);
|
|
// }
|
|
// }
|
|
//}
|
|
|
|
var protocol = job.InputProtocol;
|
|
|
|
var inputPath = new[] { job.MediaPath };
|
|
|
|
if (job.IsInputVideo)
|
|
{
|
|
if (!(job.VideoType == VideoType.Iso && job.IsoMount == null))
|
|
{
|
|
inputPath = MediaEncoderHelpers.GetInputArgument(job.MediaPath, job.InputProtocol, job.IsoMount, job.PlayableStreamFileNames);
|
|
}
|
|
}
|
|
|
|
return MediaEncoder.GetInputArgument(inputPath, protocol);
|
|
}
|
|
|
|
private async Task AcquireResources(EncodingJob state, CancellationToken cancellationToken)
|
|
{
|
|
if (state.VideoType == VideoType.Iso && state.IsoType.HasValue && IsoManager.CanMount(state.MediaPath))
|
|
{
|
|
state.IsoMount = await IsoManager.Mount(state.MediaPath, cancellationToken).ConfigureAwait(false);
|
|
}
|
|
|
|
if (string.IsNullOrEmpty(state.MediaPath))
|
|
{
|
|
var checkCodecs = false;
|
|
|
|
if (string.Equals(state.ItemType, typeof(LiveTvChannel).Name))
|
|
{
|
|
var streamInfo = await LiveTvManager.GetChannelStream(state.Options.ItemId, cancellationToken).ConfigureAwait(false);
|
|
|
|
state.LiveTvStreamId = streamInfo.Id;
|
|
|
|
state.MediaPath = streamInfo.Path;
|
|
state.InputProtocol = streamInfo.Protocol;
|
|
|
|
await Task.Delay(1500, cancellationToken).ConfigureAwait(false);
|
|
|
|
AttachMediaStreamInfo(state, streamInfo, state.Options);
|
|
checkCodecs = true;
|
|
}
|
|
|
|
else if (string.Equals(state.ItemType, typeof(LiveTvVideoRecording).Name) ||
|
|
string.Equals(state.ItemType, typeof(LiveTvAudioRecording).Name))
|
|
{
|
|
var streamInfo = await LiveTvManager.GetRecordingStream(state.Options.ItemId, cancellationToken).ConfigureAwait(false);
|
|
|
|
state.LiveTvStreamId = streamInfo.Id;
|
|
|
|
state.MediaPath = streamInfo.Path;
|
|
state.InputProtocol = streamInfo.Protocol;
|
|
|
|
await Task.Delay(1500, cancellationToken).ConfigureAwait(false);
|
|
|
|
AttachMediaStreamInfo(state, streamInfo, state.Options);
|
|
checkCodecs = true;
|
|
}
|
|
|
|
if (state.IsVideoRequest && checkCodecs)
|
|
{
|
|
if (state.VideoStream != null && EncodingJobFactory.CanStreamCopyVideo(state.Options, state.VideoStream))
|
|
{
|
|
state.OutputVideoCodec = "copy";
|
|
}
|
|
|
|
if (state.AudioStream != null && EncodingJobFactory.CanStreamCopyAudio(state.Options, state.AudioStream, state.SupportedAudioCodecs))
|
|
{
|
|
state.OutputAudioCodec = "copy";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private void AttachMediaStreamInfo(EncodingJob state,
|
|
ChannelMediaInfo mediaInfo,
|
|
EncodingJobOptions videoRequest)
|
|
{
|
|
var mediaSource = mediaInfo.ToMediaSource();
|
|
|
|
state.InputProtocol = mediaSource.Protocol;
|
|
state.MediaPath = mediaSource.Path;
|
|
state.RunTimeTicks = mediaSource.RunTimeTicks;
|
|
state.RemoteHttpHeaders = mediaSource.RequiredHttpHeaders;
|
|
state.InputBitrate = mediaSource.Bitrate;
|
|
state.InputFileSize = mediaSource.Size;
|
|
state.ReadInputAtNativeFramerate = mediaSource.ReadAtNativeFramerate;
|
|
|
|
if (state.ReadInputAtNativeFramerate)
|
|
{
|
|
state.OutputAudioSync = "1000";
|
|
state.InputVideoSync = "-1";
|
|
state.InputAudioSync = "1";
|
|
}
|
|
|
|
EncodingJobFactory.AttachMediaStreamInfo(state, mediaSource.MediaStreams, videoRequest);
|
|
}
|
|
|
|
/// <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 GetGraphicalSubtitleParam(EncodingJob state, string outputVideoCodec)
|
|
{
|
|
var outputSizeParam = string.Empty;
|
|
|
|
var request = state.Options;
|
|
|
|
// Add resolution params, if specified
|
|
if (request.Width.HasValue || request.Height.HasValue || request.MaxHeight.HasValue || request.MaxWidth.HasValue)
|
|
{
|
|
outputSizeParam = GetOutputSizeParam(state, outputVideoCodec).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));
|
|
}
|
|
|
|
var mapPrefix = state.SubtitleStream.IsExternal ?
|
|
1 :
|
|
0;
|
|
|
|
var subtitleStreamIndex = state.SubtitleStream.IsExternal
|
|
? 0
|
|
: state.SubtitleStream.Index;
|
|
|
|
return string.Format(" -filter_complex \"[{0}:{1}]format=yuva444p{4},lut=u=128:v=128:y=gammaval(.3)[sub] ; [0:{2}] [sub] overlay{3}\"",
|
|
mapPrefix.ToString(UsCulture),
|
|
subtitleStreamIndex.ToString(UsCulture),
|
|
state.VideoStream.Index.ToString(UsCulture),
|
|
outputSizeParam,
|
|
videoSizeParam);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the video bitrate to specify on the command line
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="videoCodec">The video codec.</param>
|
|
/// <param name="isHls">if set to <c>true</c> [is HLS].</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetVideoQualityParam(EncodingJob state, string videoCodec, bool isHls)
|
|
{
|
|
var param = string.Empty;
|
|
|
|
var isVc1 = state.VideoStream != null &&
|
|
string.Equals(state.VideoStream.Codec, "vc1", StringComparison.OrdinalIgnoreCase);
|
|
|
|
var qualitySetting = GetQualitySetting();
|
|
|
|
if (string.Equals(videoCodec, "libx264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param = "-preset superfast";
|
|
|
|
switch (qualitySetting)
|
|
{
|
|
case EncodingQuality.HighSpeed:
|
|
param += " -crf 23";
|
|
break;
|
|
case EncodingQuality.HighQuality:
|
|
param += " -crf 20";
|
|
break;
|
|
case EncodingQuality.MaxQuality:
|
|
param += " -crf 18";
|
|
break;
|
|
}
|
|
}
|
|
|
|
else if (string.Equals(videoCodec, "libx265", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param = "-preset fast";
|
|
|
|
switch (qualitySetting)
|
|
{
|
|
case EncodingQuality.HighSpeed:
|
|
param += " -crf 28";
|
|
break;
|
|
case EncodingQuality.HighQuality:
|
|
param += " -crf 25";
|
|
break;
|
|
case EncodingQuality.MaxQuality:
|
|
param += " -crf 21";
|
|
break;
|
|
}
|
|
}
|
|
|
|
// webm
|
|
else if (string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
// Values 0-3, 0 being highest quality but slower
|
|
var profileScore = 0;
|
|
|
|
string crf;
|
|
var qmin = "0";
|
|
var qmax = "50";
|
|
|
|
switch (qualitySetting)
|
|
{
|
|
case EncodingQuality.HighSpeed:
|
|
crf = "10";
|
|
break;
|
|
case EncodingQuality.HighQuality:
|
|
crf = "6";
|
|
break;
|
|
case EncodingQuality.MaxQuality:
|
|
crf = "4";
|
|
break;
|
|
default:
|
|
throw new ArgumentException("Unrecognized quality setting");
|
|
}
|
|
|
|
if (isVc1)
|
|
{
|
|
profileScore++;
|
|
}
|
|
|
|
// Max of 2
|
|
profileScore = Math.Min(profileScore, 2);
|
|
|
|
// http://www.webmproject.org/docs/encoder-parameters/
|
|
param = string.Format("-speed 16 -quality good -profile:v {0} -slices 8 -crf {1} -qmin {2} -qmax {3}",
|
|
profileScore.ToString(UsCulture),
|
|
crf,
|
|
qmin,
|
|
qmax);
|
|
}
|
|
|
|
else if (string.Equals(videoCodec, "mpeg4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param = "-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -bf 2";
|
|
}
|
|
|
|
// asf/wmv
|
|
else if (string.Equals(videoCodec, "wmv2", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param = "-qmin 2";
|
|
}
|
|
|
|
else if (string.Equals(videoCodec, "msmpeg4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param = "-mbd 2";
|
|
}
|
|
|
|
param += GetVideoBitrateParam(state, videoCodec, isHls);
|
|
|
|
var framerate = GetFramerateParam(state);
|
|
if (framerate.HasValue)
|
|
{
|
|
param += string.Format(" -r {0}", framerate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.OutputVideoSync))
|
|
{
|
|
param += " -vsync " + state.OutputVideoSync;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.Options.Profile))
|
|
{
|
|
param += " -profile:v " + state.Options.Profile;
|
|
}
|
|
|
|
if (state.Options.Level.HasValue)
|
|
{
|
|
param += " -level " + state.Options.Level.Value.ToString(UsCulture);
|
|
}
|
|
|
|
return param;
|
|
}
|
|
|
|
protected string GetVideoBitrateParam(EncodingJob state, string videoCodec, bool isHls)
|
|
{
|
|
var bitrate = state.OutputVideoBitrate;
|
|
|
|
if (bitrate.HasValue)
|
|
{
|
|
var hasFixedResolution = state.Options.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 double? GetFramerateParam(EncodingJob state)
|
|
{
|
|
if (state.Options.Framerate.HasValue)
|
|
{
|
|
return state.Options.Framerate.Value;
|
|
}
|
|
|
|
var maxrate = state.Options.MaxFramerate;
|
|
|
|
if (maxrate.HasValue && state.VideoStream != null)
|
|
{
|
|
var contentRate = state.VideoStream.AverageFrameRate ?? state.VideoStream.RealFrameRate;
|
|
|
|
if (contentRate.HasValue && contentRate.Value > maxrate.Value)
|
|
{
|
|
return maxrate;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the map args.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected virtual string GetMapArgs(EncodingJob state)
|
|
{
|
|
// If we don't have known media info
|
|
// If input is video, use -sn to drop subtitles
|
|
// Otherwise just return empty
|
|
if (state.VideoStream == null && state.AudioStream == null)
|
|
{
|
|
return state.IsInputVideo ? "-sn" : string.Empty;
|
|
}
|
|
|
|
// We have media info, but we don't know the stream indexes
|
|
if (state.VideoStream != null && state.VideoStream.Index == -1)
|
|
{
|
|
return "-sn";
|
|
}
|
|
|
|
// We have media info, but we don't know the stream indexes
|
|
if (state.AudioStream != null && state.AudioStream.Index == -1)
|
|
{
|
|
return state.IsInputVideo ? "-sn" : string.Empty;
|
|
}
|
|
|
|
var args = string.Empty;
|
|
|
|
if (state.VideoStream != null)
|
|
{
|
|
args += string.Format("-map 0:{0}", state.VideoStream.Index);
|
|
}
|
|
else
|
|
{
|
|
args += "-map -0:v";
|
|
}
|
|
|
|
if (state.AudioStream != null)
|
|
{
|
|
args += string.Format(" -map 0:{0}", state.AudioStream.Index);
|
|
}
|
|
|
|
else
|
|
{
|
|
args += " -map -0:a";
|
|
}
|
|
|
|
if (state.SubtitleStream == null)
|
|
{
|
|
args += " -map -0:s";
|
|
}
|
|
else if (state.SubtitleStream.IsExternal && !state.SubtitleStream.IsTextSubtitleStream)
|
|
{
|
|
args += " -map 1:0 -sn";
|
|
}
|
|
|
|
return args;
|
|
}
|
|
|
|
/// <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)
|
|
{
|
|
var codec = stream.Codec ?? string.Empty;
|
|
|
|
return codec.IndexOf("264", StringComparison.OrdinalIgnoreCase) != -1 ||
|
|
codec.IndexOf("avc", StringComparison.OrdinalIgnoreCase) != -1;
|
|
}
|
|
|
|
/// <summary>
|
|
/// If we're going to put a fixed size on the command line, this will calculate it
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="outputVideoCodec">The output video codec.</param>
|
|
/// <param name="allowTimeStampCopy">if set to <c>true</c> [allow time stamp copy].</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetOutputSizeParam(EncodingJob state,
|
|
string outputVideoCodec,
|
|
bool allowTimeStampCopy = true)
|
|
{
|
|
// http://sonnati.wordpress.com/2012/10/19/ffmpeg-the-swiss-army-knife-of-internet-streaming-part-vi/
|
|
|
|
var request = state.Options;
|
|
|
|
var filters = new List<string>();
|
|
|
|
if (state.DeInterlace)
|
|
{
|
|
filters.Add("yadif=0:-1:0");
|
|
}
|
|
|
|
// If fixed dimensions were supplied
|
|
if (request.Width.HasValue && request.Height.HasValue)
|
|
{
|
|
var widthParam = request.Width.Value.ToString(UsCulture);
|
|
var heightParam = request.Height.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc({0}/2)*2:trunc({1}/2)*2", widthParam, heightParam));
|
|
}
|
|
|
|
// 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
|
|
else if (request.MaxWidth.HasValue && request.MaxHeight.HasValue)
|
|
{
|
|
var maxWidthParam = request.MaxWidth.Value.ToString(UsCulture);
|
|
var maxHeightParam = request.MaxHeight.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc(min(iw\\,{0})/2)*2:trunc(min((iw/dar)\\,{1})/2)*2", maxWidthParam, maxHeightParam));
|
|
}
|
|
|
|
// If a fixed width was requested
|
|
else if (request.Width.HasValue)
|
|
{
|
|
var widthParam = request.Width.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale={0}:trunc(ow/a/2)*2", widthParam));
|
|
}
|
|
|
|
// If a fixed height was requested
|
|
else if (request.Height.HasValue)
|
|
{
|
|
var heightParam = request.Height.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc(oh*a*2)/2:{0}", heightParam));
|
|
}
|
|
|
|
// If a max width was requested
|
|
else if (request.MaxWidth.HasValue && (!request.MaxHeight.HasValue || state.VideoStream == null))
|
|
{
|
|
var maxWidthParam = request.MaxWidth.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=min(iw\\,{0}):trunc(ow/dar/2)*2", maxWidthParam));
|
|
}
|
|
|
|
// If a max height was requested
|
|
else if (request.MaxHeight.HasValue && (!request.MaxWidth.HasValue || state.VideoStream == null))
|
|
{
|
|
var maxHeightParam = request.MaxHeight.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc(oh*a*2)/2:min(ih\\,{0})", maxHeightParam));
|
|
}
|
|
|
|
else if (request.MaxWidth.HasValue ||
|
|
request.MaxHeight.HasValue ||
|
|
request.Width.HasValue ||
|
|
request.Height.HasValue)
|
|
{
|
|
if (state.VideoStream != null)
|
|
{
|
|
// 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);
|
|
|
|
var manualWidthParam = outputSize.Width.ToString(UsCulture);
|
|
var manualHeightParam = outputSize.Height.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc({0}/2)*2:trunc({1}/2)*2", manualWidthParam, manualHeightParam));
|
|
}
|
|
}
|
|
|
|
var output = string.Empty;
|
|
|
|
if (state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream)
|
|
{
|
|
var subParam = GetTextSubtitleParam(state);
|
|
|
|
filters.Add(subParam);
|
|
|
|
if (allowTimeStampCopy)
|
|
{
|
|
output += " -copyts";
|
|
}
|
|
}
|
|
|
|
if (filters.Count > 0)
|
|
{
|
|
output += string.Format(" -vf \"{0}\"", string.Join(",", filters.ToArray()));
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the text subtitle param.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetTextSubtitleParam(EncodingJob state)
|
|
{
|
|
var seconds = Math.Round(TimeSpan.FromTicks(state.Options.StartTimeTicks ?? 0).TotalSeconds);
|
|
|
|
if (state.SubtitleStream.IsExternal)
|
|
{
|
|
var subtitlePath = state.SubtitleStream.Path;
|
|
|
|
var charsetParam = string.Empty;
|
|
|
|
if (!string.IsNullOrEmpty(state.SubtitleStream.Language))
|
|
{
|
|
var charenc = SubtitleEncoder.GetSubtitleFileCharacterSet(subtitlePath, state.SubtitleStream.Language);
|
|
|
|
if (!string.IsNullOrEmpty(charenc))
|
|
{
|
|
charsetParam = ":charenc=" + charenc;
|
|
}
|
|
}
|
|
|
|
// TODO: Perhaps also use original_size=1920x800 ??
|
|
return string.Format("subtitles=filename='{0}'{1},setpts=PTS -{2}/TB",
|
|
subtitlePath.Replace('\\', '/').Replace(":/", "\\:/"),
|
|
charsetParam,
|
|
seconds.ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format("subtitles='{0}:si={1}',setpts=PTS -{2}/TB",
|
|
state.MediaPath.Replace('\\', '/').Replace(":/", "\\:/"),
|
|
state.InternalSubtitleStreamOffset.ToString(UsCulture),
|
|
seconds.ToString(UsCulture));
|
|
}
|
|
|
|
protected string GetAudioFilterParam(EncodingJob state, bool isHls)
|
|
{
|
|
var volParam = string.Empty;
|
|
var audioSampleRate = string.Empty;
|
|
|
|
var channels = state.OutputAudioChannels;
|
|
|
|
// Boost volume to 200% when downsampling from 6ch to 2ch
|
|
if (channels.HasValue && channels.Value <= 2)
|
|
{
|
|
if (state.AudioStream != null && state.AudioStream.Channels.HasValue && state.AudioStream.Channels.Value > 5)
|
|
{
|
|
volParam = ",volume=" + GetEncodingOptions().DownMixAudioBoost.ToString(UsCulture);
|
|
}
|
|
}
|
|
|
|
if (state.OutputAudioSampleRate.HasValue)
|
|
{
|
|
audioSampleRate = state.OutputAudioSampleRate.Value + ":";
|
|
}
|
|
|
|
var adelay = isHls ? "adelay=1," : string.Empty;
|
|
|
|
var pts = string.Empty;
|
|
|
|
if (state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream)
|
|
{
|
|
var seconds = TimeSpan.FromTicks(state.Options.StartTimeTicks ?? 0).TotalSeconds;
|
|
|
|
pts = string.Format(",asetpts=PTS-{0}/TB", Math.Round(seconds).ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format("-af \"{0}aresample={1}async={4}{2}{3}\"",
|
|
|
|
adelay,
|
|
audioSampleRate,
|
|
volParam,
|
|
pts,
|
|
state.OutputAudioSync);
|
|
}
|
|
}
|
|
}
|