open-source-mirrors
/
jellyfin
mirror of https://github.com/jellyfin/jellyfin
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

update sync encoding to match streaming

Browse Source
pull/702/head
Luke Pulverenti 9 years ago
parent d28ef71d93
commit d1de9e0179
4 changed files with 283 additions and 178 deletions
Show Stats Download Patch File Download Diff File

24
MediaBrowser.MediaEncoding/Encoder/AudioEncoder.cs
Unescape View File

@ -19,38 +19,40 @@ namespace MediaBrowser.MediaEncoding.Encoder
{
}
protected override string GetCommandLineArguments(EncodingJob job)
protected override string GetCommandLineArguments(EncodingJob state)
{
var audioTranscodeParams = new List<string>();
var bitrate = job.OutputAudioBitrate;
var bitrate = state.OutputAudioBitrate;
if (bitrate.HasValue)
{
audioTranscodeParams.Add("-ab " + bitrate.Value.ToString(UsCulture));
}
if (job.OutputAudioChannels.HasValue)
if (state.OutputAudioChannels.HasValue)
{
audioTranscodeParams.Add("-ac " + job.OutputAudioChannels.Value.ToString(UsCulture));
audioTranscodeParams.Add("-ac " + state.OutputAudioChannels.Value.ToString(UsCulture));
}
if (job.OutputAudioSampleRate.HasValue)
if (state.OutputAudioSampleRate.HasValue)
{
audioTranscodeParams.Add("-ar " + job.OutputAudioSampleRate.Value.ToString(UsCulture));
audioTranscodeParams.Add("-ar " + state.OutputAudioSampleRate.Value.ToString(UsCulture));
}
var threads = GetNumberOfThreads(job, false);
const string vn = " -vn";
var inputModifier = GetInputModifier(job);
var threads = GetNumberOfThreads(state, false);
var inputModifier = GetInputModifier(state);
return string.Format("{0} {1} -threads {2}{3} {4} -id3v2_version 3 -write_id3v1 1 -y \"{5}\"",
inputModifier,
GetInputArgument(job),
GetInputArgument(state),
threads,
" -vn",
vn,
string.Join(" ", audioTranscodeParams.ToArray()),
job.OutputFilePath).Trim();
state.OutputFilePath).Trim();
}
protected override string GetOutputFileExtension(EncodingJob state)

211
MediaBrowser.MediaEncoding/Encoder/BaseEncoder.cs
Unescape View File

@ -303,15 +303,15 @@ namespace MediaBrowser.MediaEncoding.Encoder
return job.Options.CpuCoreLimit ?? 0;
}
protected string GetInputModifier(EncodingJob job, bool genPts = true)
protected string GetInputModifier(EncodingJob state, bool genPts = true)
{
var inputModifier = string.Empty;
var probeSize = GetProbeSizeArgument(job);
var probeSize = GetProbeSizeArgument(state);
inputModifier += " " + probeSize;
inputModifier = inputModifier.Trim();
var userAgentParam = GetUserAgentParam(job);
var userAgentParam = GetUserAgentParam(state);
if (!string.IsNullOrWhiteSpace(userAgentParam))
{
@ -320,35 +320,43 @@ namespace MediaBrowser.MediaEncoding.Encoder
inputModifier = inputModifier.Trim();
inputModifier += " " + GetFastSeekCommandLineParameter(job.Options);
inputModifier += " " + GetFastSeekCommandLineParameter(state.Options);
inputModifier = inputModifier.Trim();
if (job.IsVideoRequest && genPts)
if (state.IsVideoRequest && genPts)
{
inputModifier += " -fflags +genpts";
}
if (!string.IsNullOrEmpty(job.InputAudioSync))
if (!string.IsNullOrEmpty(state.InputAudioSync))
{
inputModifier += " -async " + job.InputAudioSync;
inputModifier += " -async " + state.InputAudioSync;
}
if (!string.IsNullOrEmpty(job.InputVideoSync))
if (!string.IsNullOrEmpty(state.InputVideoSync))
{
inputModifier += " -vsync " + job.InputVideoSync;
inputModifier += " -vsync " + state.InputVideoSync;
}
if (job.ReadInputAtNativeFramerate)
if (state.ReadInputAtNativeFramerate)
{
inputModifier += " -re";
}
var videoDecoder = GetVideoDecoder(job);
var videoDecoder = GetVideoDecoder(state);
if (!string.IsNullOrWhiteSpace(videoDecoder))
{
inputModifier += " " + videoDecoder;
}
//if (state.IsVideoRequest)
//{
// if (string.Equals(state.OutputContainer, "mkv", StringComparison.OrdinalIgnoreCase))
// {
// //inputModifier += " -noaccurate_seek";
// }
//}
return inputModifier;
}
@ -392,11 +400,11 @@ namespace MediaBrowser.MediaEncoding.Encoder
return null;
}
private string GetUserAgentParam(EncodingJob job)
private string GetUserAgentParam(EncodingJob state)
{
string useragent = null;
job.RemoteHttpHeaders.TryGetValue("User-Agent", out useragent);
state.RemoteHttpHeaders.TryGetValue("User-Agent", out useragent);
if (!string.IsNullOrWhiteSpace(useragent))
{
@ -409,31 +417,31 @@ namespace MediaBrowser.MediaEncoding.Encoder
/// <summary>
/// Gets the probe size argument.
/// </summary>
/// <param name="job">The job.</param>
/// <param name="state">The state.</param>
/// <returns>System.String.</returns>
private string GetProbeSizeArgument(EncodingJob job)
private string GetProbeSizeArgument(EncodingJob state)
{
if (job.PlayableStreamFileNames.Count > 0)
if (state.PlayableStreamFileNames.Count > 0)
{
return MediaEncoder.GetProbeSizeArgument(job.PlayableStreamFileNames.ToArray(), job.InputProtocol);
return MediaEncoder.GetProbeSizeArgument(state.PlayableStreamFileNames.ToArray(), state.InputProtocol);
}
return MediaEncoder.GetProbeSizeArgument(new[] { job.MediaPath }, job.InputProtocol);
return MediaEncoder.GetProbeSizeArgument(new[] { state.MediaPath }, state.InputProtocol);
}
/// <summary>
/// Gets the fast seek command line parameter.
/// </summary>
/// <param name="options">The options.</param>
/// <param name="request">The request.</param>
/// <returns>System.String.</returns>
/// <value>The fast seek command line parameter.</value>
protected string GetFastSeekCommandLineParameter(EncodingJobOptions options)
protected string GetFastSeekCommandLineParameter(EncodingJobOptions request)
{
var time = options.StartTimeTicks;
var time = request.StartTimeTicks ?? 0;
if (time.HasValue && time.Value > 0)
if (time > 0)
{
return string.Format("-ss {0}", MediaEncoder.GetTimeParameter(time.Value));
return string.Format("-ss {0}", MediaEncoder.GetTimeParameter(time));
}
return string.Empty;
@ -442,34 +450,35 @@ namespace MediaBrowser.MediaEncoding.Encoder
/// <summary>
/// Gets the input argument.
/// </summary>
/// <param name="job">The job.</param>
/// <param name="state">The state.</param>
/// <returns>System.String.</returns>
protected string GetInputArgument(EncodingJob job)
protected string GetInputArgument(EncodingJob state)
{
var arg = "-i " + GetInputPathArgument(job);
var arg = string.Format("-i {0}", GetInputPathArgument(state));
if (job.SubtitleStream != null)
if (state.SubtitleStream != null)
{
if (job.SubtitleStream.IsExternal && !job.SubtitleStream.IsTextSubtitleStream)
if (state.SubtitleStream.IsExternal && !state.SubtitleStream.IsTextSubtitleStream)
{
arg += " -i \"" + job.SubtitleStream.Path + "\"";
arg += " -i \"" + state.SubtitleStream.Path + "\"";
}
}
return arg;
return arg.Trim();
}
private string GetInputPathArgument(EncodingJob job)
private string GetInputPathArgument(EncodingJob state)
{
var protocol = job.InputProtocol;
var protocol = state.InputProtocol;
var mediaPath = state.MediaPath ?? string.Empty;
var inputPath = new[] { job.MediaPath };
var inputPath = new[] { mediaPath };
if (job.IsInputVideo)
if (state.IsInputVideo)
{
if (!(job.VideoType == VideoType.Iso && job.IsoMount == null))
if (!(state.VideoType == VideoType.Iso && state.IsoMount == null))
{
inputPath = MediaEncoderHelpers.GetInputArgument(FileSystem, job.MediaPath, job.InputProtocol, job.IsoMount, job.PlayableStreamFileNames);
inputPath = MediaEncoderHelpers.GetInputArgument(FileSystem, mediaPath, state.InputProtocol, state.IsoMount, state.PlayableStreamFileNames);
}
}
@ -491,7 +500,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
}, false, cancellationToken).ConfigureAwait(false);
AttachMediaStreamInfo(state, liveStreamResponse.MediaSource, state.Options);
AttachMediaSourceInfo(state, liveStreamResponse.MediaSource, state.Options);
if (state.IsVideoRequest)
{
@ -505,11 +514,11 @@ namespace MediaBrowser.MediaEncoding.Encoder
}
}
private void AttachMediaStreamInfo(EncodingJob state,
private void AttachMediaSourceInfo(EncodingJob state,
MediaSourceInfo mediaSource,
EncodingJobOptions videoRequest)
{
EncodingJobFactory.AttachMediaStreamInfo(state, mediaSource, videoRequest);
EncodingJobFactory.AttachMediaSourceInfo(state, mediaSource, videoRequest);
}
/// <summary>
@ -572,7 +581,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
{
param = "-preset superfast";
param += " -crf 28";
param += " -crf 23";
}
else if (string.Equals(videoCodec, "libx265", StringComparison.OrdinalIgnoreCase))
@ -582,6 +591,19 @@ namespace MediaBrowser.MediaEncoding.Encoder
param += " -crf 28";
}
// h264 (h264_qsv)
else if (string.Equals(videoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
{
param = "-preset 7 -look_ahead 0";
}
// h264 (libnvenc)
else if (string.Equals(videoCodec, "libnvenc", StringComparison.OrdinalIgnoreCase))
{
param = "-preset high-performance";
}
// webm
else if (string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase))
{
@ -644,9 +666,53 @@ namespace MediaBrowser.MediaEncoding.Encoder
param += " -profile:v " + state.Options.Profile;
}
if (state.Options.Level.HasValue)
var levelString = state.Options.Level.HasValue ? state.Options.Level.Value.ToString(CultureInfo.InvariantCulture) : null;
if (!string.IsNullOrEmpty(levelString))
{
param += " -level " + state.Options.Level.Value.ToString(UsCulture);
var h264Encoder = EncodingJobFactory.GetH264Encoder(state, GetEncodingOptions());
// h264_qsv and libnvenc expect levels to be expressed as a decimal. libx264 supports decimal and non-decimal format
if (String.Equals(h264Encoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) || String.Equals(h264Encoder, "libnvenc", StringComparison.OrdinalIgnoreCase))
{
switch (levelString)
{
case "30":
param += " -level 3";
break;
case "31":
param += " -level 3.1";
break;
case "32":
param += " -level 3.2";
break;
case "40":
param += " -level 4";
break;
case "41":
param += " -level 4.1";
break;
case "42":
param += " -level 4.2";
break;
case "50":
param += " -level 5";
break;
case "51":
param += " -level 5.1";
break;
case "52":
param += " -level 5.2";
break;
default:
param += " -level " + levelString;
break;
}
}
else
{
param += " -level " + levelString;
}
}
return "-pix_fmt yuv420p " + param;
@ -658,15 +724,8 @@ namespace MediaBrowser.MediaEncoding.Encoder
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));
@ -677,20 +736,15 @@ namespace MediaBrowser.MediaEncoding.Encoder
return string.Format(" -b:v {0}", bitrate.Value.ToString(UsCulture));
}
// H264
if (hasFixedResolution)
// h264
if (isHls)
{
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(" -b:v {0} -maxrate {0} -bufsize {1}",
bitrate.Value.ToString(UsCulture),
(bitrate.Value * 2).ToString(UsCulture));
}
return string.Format(" -maxrate {0} -bufsize {1}",
bitrate.Value.ToString(UsCulture),
(bitrate.Value * 2).ToString(UsCulture));
return string.Format(" -b:v {0}", bitrate.Value.ToString(UsCulture));
}
return string.Empty;
@ -698,20 +752,23 @@ namespace MediaBrowser.MediaEncoding.Encoder
protected double? GetFramerateParam(EncodingJob state)
{
if (state.Options.Framerate.HasValue)
if (state.Options != null)
{
return state.Options.Framerate.Value;
}
var maxrate = state.Options.MaxFramerate;
if (state.Options.Framerate.HasValue)
{
return state.Options.Framerate.Value;
}
if (maxrate.HasValue && state.VideoStream != null)
{
var contentRate = state.VideoStream.AverageFrameRate ?? state.VideoStream.RealFrameRate;
var maxrate = state.Options.MaxFramerate;
if (contentRate.HasValue && contentRate.Value > maxrate.Value)
if (maxrate.HasValue && state.VideoStream != null)
{
return maxrate;
var contentRate = state.VideoStream.AverageFrameRate ?? state.VideoStream.RealFrameRate;
if (contentRate.HasValue && contentRate.Value > maxrate.Value)
{
return maxrate;
}
}
}
@ -852,7 +909,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
{
var maxWidthParam = request.MaxWidth.Value.ToString(UsCulture);
filters.Add(string.Format("scale=min(iw\\,{0}):trunc(ow/dar/2)*2", maxWidthParam));
filters.Add(string.Format("scale=trunc(min(max(iw\\,ih*dar)\\,{0})/2)*2:trunc(ow/dar/2)*2", maxWidthParam));
}
// If a max height was requested
@ -863,6 +920,14 @@ namespace MediaBrowser.MediaEncoding.Encoder
filters.Add(string.Format("scale=trunc(oh*a/2)*2:min(ih\\,{0})", maxHeightParam));
}
if (string.Equals(outputVideoCodec, "h264_qsv", StringComparison.OrdinalIgnoreCase))
{
if (filters.Count > 1)
{
//filters[filters.Count - 1] += ":flags=fast_bilinear";
}
}
var output = string.Empty;
if (state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream)
@ -917,8 +982,10 @@ namespace MediaBrowser.MediaEncoding.Encoder
seconds.ToString(UsCulture));
}
var mediaPath = state.MediaPath ?? string.Empty;
return string.Format("subtitles='{0}:si={1}',setpts=PTS -{2}/TB",
MediaEncoder.EscapeSubtitleFilterPath(state.MediaPath),
MediaEncoder.EscapeSubtitleFilterPath(mediaPath),
state.InternalSubtitleStreamOffset.ToString(UsCulture),
seconds.ToString(UsCulture));
}

179
MediaBrowser.MediaEncoding/Encoder/EncodingJobFactory.cs
Unescape View File

@ -10,6 +10,7 @@ using MediaBrowser.Model.MediaInfo;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
@ -66,38 +67,56 @@ namespace MediaBrowser.MediaEncoding.Encoder
? mediaSources.First()
: mediaSources.First(i => string.Equals(i.Id, request.MediaSourceId));
AttachMediaStreamInfo(state, mediaSource, options);
var videoRequest = state.Options;
state.OutputAudioBitrate = GetAudioBitrateParam(request, state.AudioStream);
AttachMediaSourceInfo(state, mediaSource, videoRequest);
//var container = Path.GetExtension(state.RequestedUrl);
//if (string.IsNullOrEmpty(container))
//{
// container = request.Static ?
// state.InputContainer :
// (Path.GetExtension(GetOutputFilePath(state)) ?? string.Empty).TrimStart('.');
//}
//state.OutputContainer = (container ?? string.Empty).TrimStart('.');
state.OutputAudioBitrate = GetAudioBitrateParam(state.Options, state.AudioStream);
state.OutputAudioSampleRate = request.AudioSampleRate;
state.OutputAudioCodec = GetAudioCodec(request);
state.OutputAudioCodec = state.Options.AudioCodec;
state.OutputAudioChannels = GetNumAudioChannelsParam(request, state.AudioStream, state.OutputAudioCodec);
state.OutputAudioChannels = GetNumAudioChannelsParam(state.Options, state.AudioStream, state.OutputAudioCodec);
if (isVideoRequest)
if (videoRequest != null)
{
state.OutputVideoCodec = GetVideoCodec(request);
state.OutputVideoBitrate = GetVideoBitrateParamValue(request, state.VideoStream);
state.OutputVideoCodec = state.Options.VideoCodec;
state.OutputVideoBitrate = GetVideoBitrateParamValue(state.Options, state.VideoStream);
if (state.OutputVideoBitrate.HasValue)
{
var resolution = ResolutionNormalizer.Normalize(
state.VideoStream == null ? (int?)null : state.VideoStream.BitRate,
state.OutputVideoBitrate.Value,
state.VideoStream == null ? null : state.VideoStream.Codec,
state.VideoStream == null ? (int?)null : state.VideoStream.BitRate,
state.OutputVideoBitrate.Value,
state.VideoStream == null ? null : state.VideoStream.Codec,
state.OutputVideoCodec,
request.MaxWidth,
request.MaxHeight);
videoRequest.MaxWidth,
videoRequest.MaxHeight);
request.MaxWidth = resolution.MaxWidth;
request.MaxHeight = resolution.MaxHeight;
videoRequest.MaxWidth = resolution.MaxWidth;
videoRequest.MaxHeight = resolution.MaxHeight;
}
}
ApplyDeviceProfileSettings(state);
TryStreamCopy(state, request);
if (videoRequest != null)
{
TryStreamCopy(state, videoRequest);
}
//state.OutputFilePath = GetOutputFilePath(state);
return state;
}
@ -119,7 +138,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
}
}
internal static void AttachMediaStreamInfo(EncodingJob state,
internal static void AttachMediaSourceInfo(EncodingJob state,
MediaSourceInfo mediaSource,
EncodingJobOptions videoRequest)
{
@ -131,11 +150,6 @@ namespace MediaBrowser.MediaEncoding.Encoder
state.RunTimeTicks = mediaSource.RunTimeTicks;
state.RemoteHttpHeaders = mediaSource.RequiredHttpHeaders;
if (mediaSource.ReadAtNativeFramerate)
{
state.ReadInputAtNativeFramerate = true;
}
if (mediaSource.VideoType.HasValue)
{
state.VideoType = mediaSource.VideoType.Value;
@ -156,6 +170,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
state.RemoteHttpHeaders = mediaSource.RequiredHttpHeaders;
state.InputBitrate = mediaSource.Bitrate;
state.InputFileSize = mediaSource.Size;
state.ReadInputAtNativeFramerate = mediaSource.ReadAtNativeFramerate;
if (state.ReadInputAtNativeFramerate ||
mediaSource.Protocol == MediaProtocol.File && string.Equals(mediaSource.Container, "wtv", StringComparison.OrdinalIgnoreCase))
@ -165,6 +180,12 @@ namespace MediaBrowser.MediaEncoding.Encoder
state.InputAudioSync = "1";
}
if (string.Equals(mediaSource.Container, "wma", StringComparison.OrdinalIgnoreCase))
{
// Seeing some stuttering when transcoding wma to audio-only HLS
state.InputAudioSync = "1";
}
var mediaStreams = mediaSource.MediaStreams;
if (videoRequest != null)
@ -210,19 +231,21 @@ namespace MediaBrowser.MediaEncoding.Encoder
/// <returns>System.Nullable{VideoCodecs}.</returns>
private static string InferVideoCodec(string container)
{
if (string.Equals(container, "asf", StringComparison.OrdinalIgnoreCase))
var ext = "." + (container ?? string.Empty);
if (string.Equals(ext, ".asf", StringComparison.OrdinalIgnoreCase))
{
return "wmv";
}
if (string.Equals(container, "webm", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".webm", StringComparison.OrdinalIgnoreCase))
{
return "vpx";
}
if (string.Equals(container, "ogg", StringComparison.OrdinalIgnoreCase) || string.Equals(container, "ogv", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".ogg", StringComparison.OrdinalIgnoreCase) || string.Equals(ext, ".ogv", StringComparison.OrdinalIgnoreCase))
{
return "theora";
}
if (string.Equals(container, "m3u8", StringComparison.OrdinalIgnoreCase) || string.Equals(container, "ts", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".m3u8", StringComparison.OrdinalIgnoreCase) || string.Equals(ext, ".ts", StringComparison.OrdinalIgnoreCase))
{
return "h264";
}
@ -232,35 +255,37 @@ namespace MediaBrowser.MediaEncoding.Encoder
private string InferAudioCodec(string container)
{
if (string.Equals(container, "mp3", StringComparison.OrdinalIgnoreCase))
var ext = "." + (container ?? string.Empty);
if (string.Equals(ext, ".mp3", StringComparison.OrdinalIgnoreCase))
{
return "mp3";
}
if (string.Equals(container, "aac", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".aac", StringComparison.OrdinalIgnoreCase))
{
return "aac";
}
if (string.Equals(container, "wma", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".wma", StringComparison.OrdinalIgnoreCase))
{
return "wma";
}
if (string.Equals(container, "ogg", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".ogg", StringComparison.OrdinalIgnoreCase))
{
return "vorbis";
}
if (string.Equals(container, "oga", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".oga", StringComparison.OrdinalIgnoreCase))
{
return "vorbis";
}
if (string.Equals(container, "ogv", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".ogv", StringComparison.OrdinalIgnoreCase))
{
return "vorbis";
}
if (string.Equals(container, "webm", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".webm", StringComparison.OrdinalIgnoreCase))
{
return "vorbis";
}
if (string.Equals(container, "webma", StringComparison.OrdinalIgnoreCase))
if (string.Equals(ext, ".webma", StringComparison.OrdinalIgnoreCase))
{
return "vorbis";
}
@ -398,15 +423,8 @@ namespace MediaBrowser.MediaEncoding.Encoder
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));
@ -417,20 +435,15 @@ namespace MediaBrowser.MediaEncoding.Encoder
return string.Format(" -b:v {0}", bitrate.Value.ToString(UsCulture));
}
// H264
if (hasFixedResolution)
// h264
if (isHls)
{
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(" -b:v {0} -maxrate {0} -bufsize {1}",
bitrate.Value.ToString(UsCulture),
(bitrate.Value * 2).ToString(UsCulture));
}
return string.Format(" -maxrate {0} -bufsize {1}",
bitrate.Value.ToString(UsCulture),
(bitrate.Value * 2).ToString(UsCulture));
return string.Format(" -b:v {0}", bitrate.Value.ToString(UsCulture));
}
return string.Empty;
@ -466,11 +479,11 @@ namespace MediaBrowser.MediaEncoding.Encoder
/// <summary>
/// Gets the name of the output audio codec
/// </summary>
/// <param name="request">The request.</param>
/// <param name="state">The state.</param>
/// <returns>System.String.</returns>
private string GetAudioCodec(EncodingJobOptions request)
internal static string GetAudioEncoder(EncodingJob state)
{
var codec = request.AudioCodec;
var codec = state.OutputAudioCodec;
if (string.Equals(codec, "aac", StringComparison.OrdinalIgnoreCase))
{
@ -489,40 +502,56 @@ namespace MediaBrowser.MediaEncoding.Encoder
return "wmav2";
}
return (codec ?? string.Empty).ToLower();
return codec.ToLower();
}
/// <summary>
/// Gets the name of the output video codec
/// </summary>
/// <param name="request">The request.</param>
/// <param name="state">The state.</param>
/// <param name="options">The options.</param>
/// <returns>System.String.</returns>
private string GetVideoCodec(EncodingJobOptions request)
internal static string GetVideoEncoder(EncodingJob state, EncodingOptions options)
{
var codec = request.VideoCodec;
var codec = state.OutputVideoCodec;
if (string.Equals(codec, "h264", StringComparison.OrdinalIgnoreCase))
if (!string.IsNullOrEmpty(codec))
{
return "libx264";
}
if (string.Equals(codec, "h265", StringComparison.OrdinalIgnoreCase) || string.Equals(codec, "hevc", StringComparison.OrdinalIgnoreCase))
{
return "libx265";
}
if (string.Equals(codec, "vpx", StringComparison.OrdinalIgnoreCase))
{
return "libvpx";
}
if (string.Equals(codec, "wmv", StringComparison.OrdinalIgnoreCase))
{
return "wmv2";
if (string.Equals(codec, "h264", StringComparison.OrdinalIgnoreCase))
{
return GetH264Encoder(state, options);
}
if (string.Equals(codec, "vpx", StringComparison.OrdinalIgnoreCase))
{
return "libvpx";
}
if (string.Equals(codec, "wmv", StringComparison.OrdinalIgnoreCase))
{
return "wmv2";
}
if (string.Equals(codec, "theora", StringComparison.OrdinalIgnoreCase))
{
return "libtheora";
}
return codec.ToLower();
}
if (string.Equals(codec, "theora", StringComparison.OrdinalIgnoreCase))
return "copy";
}
internal static string GetH264Encoder(EncodingJob state, EncodingOptions options)
{
if (string.Equals(options.HardwareAccelerationType, "qsv", StringComparison.OrdinalIgnoreCase))
{
return "libtheora";
// It's currently failing on live tv
if (state.RunTimeTicks.HasValue)
{
return "h264_qsv";
}
}
return (codec ?? string.Empty).ToLower();
return "libx264";
}
internal static bool CanStreamCopyVideo(EncodingJobOptions request, MediaStream videoStream)

47
MediaBrowser.MediaEncoding/Encoder/VideoEncoder.cs
Unescape View File

@ -21,14 +21,14 @@ namespace MediaBrowser.MediaEncoding.Encoder
protected override string GetCommandLineArguments(EncodingJob state)
{
// Get the output codec name
var videoCodec = state.OutputVideoCodec;
var videoCodec = EncodingJobFactory.GetVideoEncoder(state, GetEncodingOptions());
var format = string.Empty;
var keyFrame = string.Empty;
if (string.Equals(Path.GetExtension(state.OutputFilePath), ".mp4", StringComparison.OrdinalIgnoreCase) &&
state.Options.Context == EncodingContext.Streaming)
if (string.Equals(Path.GetExtension(state.OutputFilePath), ".mp4", StringComparison.OrdinalIgnoreCase))
{
// Comparison: https://github.com/jansmolders86/mediacenterjs/blob/master/lib/transcoding/desktop.js
format = " -f mp4 -movflags frag_keyframe+empty_moov";
}
@ -53,42 +53,49 @@ namespace MediaBrowser.MediaEncoding.Encoder
/// Gets video arguments to pass to ffmpeg
/// </summary>
/// <param name="state">The state.</param>
/// <param name="codec">The video codec.</param>
/// <param name="videoCodec">The video codec.</param>
/// <returns>System.String.</returns>
private string GetVideoArguments(EncodingJob state, string codec)
private string GetVideoArguments(EncodingJob state, string videoCodec)
{
var args = "-codec:v:0 " + codec;
var args = "-codec:v:0 " + videoCodec;
if (state.EnableMpegtsM2TsMode)
{
args += " -mpegts_m2ts_mode 1";
}
// See if we can save come cpu cycles by avoiding encoding
if (string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase))
var isOutputMkv = string.Equals(state.Options.OutputContainer, "mkv", StringComparison.OrdinalIgnoreCase);
if (state.RunTimeTicks.HasValue)
{
return state.VideoStream != null && IsH264(state.VideoStream) && string.Equals(state.Options.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) ?
args + " -bsf:v h264_mp4toannexb" :
args;
//args += " -copyts -avoid_negative_ts disabled -start_at_zero";
}
if (state.Options.Context == EncodingContext.Streaming)
if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase))
{
var keyFrameArg = string.Format(" -force_key_frames expr:gte(t,n_forced*{0})",
5.ToString(UsCulture));
if (state.VideoStream != null && IsH264(state.VideoStream) &&
(string.Equals(state.Options.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) || isOutputMkv))
{
args += " -bsf:v h264_mp4toannexb";
}
args += keyFrameArg;
return args;
}
var keyFrameArg = string.Format(" -force_key_frames expr:gte(t,n_forced*{0})",
5.ToString(UsCulture));
args += keyFrameArg;
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream;
// Add resolution params, if specified
if (!hasGraphicalSubs)
{
args += GetOutputSizeParam(state, codec);
args += GetOutputSizeParam(state, videoCodec);
}
var qualityParam = GetVideoQualityParam(state, codec, false);
var qualityParam = GetVideoQualityParam(state, videoCodec, false);
if (!string.IsNullOrEmpty(qualityParam))
{
@ -98,7 +105,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
// This is for internal graphical subs
if (hasGraphicalSubs)
{
args += GetGraphicalSubtitleParam(state, codec);
args += GetGraphicalSubtitleParam(state, videoCodec);
}
return args;
@ -118,11 +125,11 @@ namespace MediaBrowser.MediaEncoding.Encoder
}
// Get the output codec name
var codec = state.OutputAudioCodec;
var codec = EncodingJobFactory.GetAudioEncoder(state);
var args = "-codec:a:0 " + codec;
if (codec.Equals("copy", StringComparison.OrdinalIgnoreCase))
if (string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase))
{
return args;
}

Write Preview
Loading…
Cancel
Save