mirror of
https://github.com/jellyfin/jellyfin.git
synced 2025-04-24 22:17:25 -04:00
6c9274730b
Without those little changes, rtsp live tv streams get corrupted even when stream copying, but also with transcoding. It's already really bad for sd streams, but hd streams are just unwatchable. The whole picture consists of green blocks. Btw. this problem isn't new. It was already discussed in many posts at the time the Argus TV plugin was still alive. These changes have the potential to fix it there also.
2141 lines
79 KiB
C#
2141 lines
79 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Globalization;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Threading;
|
|
using MediaBrowser.Controller.Configuration;
|
|
using MediaBrowser.Model.Configuration;
|
|
using MediaBrowser.Model.Dlna;
|
|
using MediaBrowser.Model.Dto;
|
|
using MediaBrowser.Model.Entities;
|
|
using MediaBrowser.Model.IO;
|
|
using MediaBrowser.Model.MediaInfo;
|
|
|
|
namespace MediaBrowser.Controller.MediaEncoding
|
|
{
|
|
public class EncodingHelper
|
|
{
|
|
private readonly CultureInfo _usCulture = new CultureInfo("en-US");
|
|
|
|
private readonly IMediaEncoder _mediaEncoder;
|
|
private readonly IServerConfigurationManager _config;
|
|
private readonly IFileSystem _fileSystem;
|
|
private readonly ISubtitleEncoder _subtitleEncoder;
|
|
|
|
public EncodingHelper(IMediaEncoder mediaEncoder, IServerConfigurationManager config, IFileSystem fileSystem, ISubtitleEncoder subtitleEncoder)
|
|
{
|
|
_mediaEncoder = mediaEncoder;
|
|
_config = config;
|
|
_fileSystem = fileSystem;
|
|
_subtitleEncoder = subtitleEncoder;
|
|
}
|
|
|
|
public string GetH264Encoder(EncodingJobInfo state, EncodingOptions encodingOptions)
|
|
{
|
|
var defaultEncoder = "libx264";
|
|
|
|
// Only use alternative encoders for video files.
|
|
// When using concat with folder rips, if the mfx session fails to initialize, ffmpeg will be stuck retrying and will not exit gracefully
|
|
// Since transcoding of folder rips is expiremental anyway, it's not worth adding additional variables such as this.
|
|
if (state.VideoType == VideoType.VideoFile)
|
|
{
|
|
var hwType = encodingOptions.HardwareAccelerationType;
|
|
|
|
if (!encodingOptions.EnableHardwareEncoding)
|
|
{
|
|
hwType = null;
|
|
}
|
|
|
|
if (string.Equals(hwType, "qsv", StringComparison.OrdinalIgnoreCase) ||
|
|
string.Equals(hwType, "h264_qsv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return GetAvailableEncoder("h264_qsv", defaultEncoder);
|
|
}
|
|
|
|
if (string.Equals(hwType, "nvenc", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return GetAvailableEncoder("h264_nvenc", defaultEncoder);
|
|
}
|
|
if (string.Equals(hwType, "h264_omx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return GetAvailableEncoder("h264_omx", defaultEncoder);
|
|
}
|
|
if (string.Equals(hwType, "vaapi", StringComparison.OrdinalIgnoreCase) && !string.IsNullOrWhiteSpace(encodingOptions.VaapiDevice))
|
|
{
|
|
if (IsVaapiSupported(state))
|
|
{
|
|
return GetAvailableEncoder("h264_vaapi", defaultEncoder);
|
|
}
|
|
}
|
|
}
|
|
|
|
return defaultEncoder;
|
|
}
|
|
|
|
private string GetAvailableEncoder(string preferredEncoder, string defaultEncoder)
|
|
{
|
|
if (_mediaEncoder.SupportsEncoder(preferredEncoder))
|
|
{
|
|
return preferredEncoder;
|
|
}
|
|
return defaultEncoder;
|
|
}
|
|
|
|
private bool IsVaapiSupported(EncodingJobInfo state)
|
|
{
|
|
var videoStream = state.VideoStream;
|
|
|
|
if (videoStream != null)
|
|
{
|
|
// vaapi will throw an error with this input
|
|
// [vaapi @ 0x7faed8000960] No VAAPI support for codec mpeg4 profile -99.
|
|
if (string.Equals(videoStream.Codec, "mpeg4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the name of the output video codec
|
|
/// </summary>
|
|
public string GetVideoEncoder(EncodingJobInfo state, EncodingOptions encodingOptions)
|
|
{
|
|
var codec = state.OutputVideoCodec;
|
|
|
|
if (!string.IsNullOrEmpty(codec))
|
|
{
|
|
if (string.Equals(codec, "h264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return GetH264Encoder(state, encodingOptions);
|
|
}
|
|
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();
|
|
}
|
|
|
|
return "copy";
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the user agent param.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
public string GetUserAgentParam(EncodingJobInfo state)
|
|
{
|
|
string useragent = null;
|
|
|
|
state.RemoteHttpHeaders.TryGetValue("User-Agent", out useragent);
|
|
|
|
if (!string.IsNullOrWhiteSpace(useragent))
|
|
{
|
|
return "-user-agent \"" + useragent + "\"";
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
public string GetInputFormat(string container)
|
|
{
|
|
if (string.Equals(container, "mkv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "matroska";
|
|
}
|
|
if (string.Equals(container, "ts", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "mpegts";
|
|
}
|
|
|
|
// For these need to find out the ffmpeg names
|
|
if (string.Equals(container, "m2ts", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "wmv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "mts", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "vob", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "mpg", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "mpeg", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "rec", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "dvr-ms", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "ogm", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "divx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "tp", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(container, "rmvb", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
// Seeing reported failures here, not sure yet if this is related to specfying input format
|
|
if (string.Equals(container, "m4v", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
// obviously don't do this for strm files
|
|
if (string.Equals(container, "strm", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
return container;
|
|
}
|
|
|
|
public string GetDecoderFromCodec(string codec)
|
|
{
|
|
// For these need to find out the ffmpeg names
|
|
if (string.Equals(codec, "mp2", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(codec, "aac_latm", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
if (string.Equals(codec, "eac3", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
if (_mediaEncoder.SupportsDecoder(codec))
|
|
{
|
|
return codec;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Infers the audio codec based on the url
|
|
/// </summary>
|
|
/// <param name="url">The URL.</param>
|
|
/// <returns>System.Nullable{AudioCodecs}.</returns>
|
|
public string InferAudioCodec(string url)
|
|
{
|
|
var ext = Path.GetExtension(url);
|
|
|
|
if (string.Equals(ext, ".mp3", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "mp3";
|
|
}
|
|
if (string.Equals(ext, ".aac", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "aac";
|
|
}
|
|
if (string.Equals(ext, ".wma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wma";
|
|
}
|
|
if (string.Equals(ext, ".ogg", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".oga", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".ogv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".webm", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".webma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
|
|
return "copy";
|
|
}
|
|
|
|
/// <summary>
|
|
/// Infers the video codec.
|
|
/// </summary>
|
|
/// <param name="url">The URL.</param>
|
|
/// <returns>System.Nullable{VideoCodecs}.</returns>
|
|
public string InferVideoCodec(string url)
|
|
{
|
|
var ext = Path.GetExtension(url);
|
|
|
|
if (string.Equals(ext, ".asf", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wmv";
|
|
}
|
|
if (string.Equals(ext, ".webm", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vpx";
|
|
}
|
|
if (string.Equals(ext, ".ogg", StringComparison.OrdinalIgnoreCase) || string.Equals(ext, ".ogv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "theora";
|
|
}
|
|
if (string.Equals(ext, ".m3u8", StringComparison.OrdinalIgnoreCase) || string.Equals(ext, ".ts", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "h264";
|
|
}
|
|
|
|
return "copy";
|
|
}
|
|
|
|
public int GetVideoProfileScore(string profile)
|
|
{
|
|
var list = new List<string>
|
|
{
|
|
"Constrained Baseline",
|
|
"Baseline",
|
|
"Extended",
|
|
"Main",
|
|
"High",
|
|
"Progressive High",
|
|
"Constrained High"
|
|
};
|
|
|
|
return Array.FindIndex(list.ToArray(), t => string.Equals(t, profile, StringComparison.OrdinalIgnoreCase));
|
|
}
|
|
|
|
public string GetInputPathArgument(EncodingJobInfo state)
|
|
{
|
|
var protocol = state.InputProtocol;
|
|
var mediaPath = state.MediaPath ?? string.Empty;
|
|
|
|
var inputPath = new[] { mediaPath };
|
|
|
|
if (state.IsInputVideo)
|
|
{
|
|
if (!(state.VideoType == VideoType.Iso && state.IsoMount == null))
|
|
{
|
|
inputPath = MediaEncoderHelpers.GetInputArgument(_fileSystem, mediaPath, state.InputProtocol, state.IsoMount, state.PlayableStreamFileNames);
|
|
}
|
|
}
|
|
|
|
return _mediaEncoder.GetInputArgument(inputPath, protocol);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the audio encoder.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
public string GetAudioEncoder(EncodingJobInfo state)
|
|
{
|
|
var codec = state.OutputAudioCodec;
|
|
|
|
if (string.Equals(codec, "aac", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "aac -strict experimental";
|
|
}
|
|
if (string.Equals(codec, "mp3", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libmp3lame";
|
|
}
|
|
if (string.Equals(codec, "vorbis", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libvorbis";
|
|
}
|
|
if (string.Equals(codec, "wma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wmav2";
|
|
}
|
|
|
|
return codec.ToLower();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the input argument.
|
|
/// </summary>
|
|
public string GetInputArgument(EncodingJobInfo state, EncodingOptions encodingOptions)
|
|
{
|
|
var request = state.BaseRequest;
|
|
|
|
var arg = string.Format("-i {0}", GetInputPathArgument(state));
|
|
|
|
if (state.SubtitleStream != null && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode)
|
|
{
|
|
if (state.SubtitleStream.IsExternal && !state.SubtitleStream.IsTextSubtitleStream)
|
|
{
|
|
if (state.VideoStream != null && state.VideoStream.Width.HasValue)
|
|
{
|
|
// This is hacky but not sure how to get the exact subtitle resolution
|
|
double height = state.VideoStream.Width.Value;
|
|
height /= 16;
|
|
height *= 9;
|
|
|
|
arg += string.Format(" -canvas_size {0}:{1}", state.VideoStream.Width.Value.ToString(CultureInfo.InvariantCulture), Convert.ToInt32(height).ToString(CultureInfo.InvariantCulture));
|
|
}
|
|
|
|
var subtitlePath = state.SubtitleStream.Path;
|
|
|
|
if (string.Equals(Path.GetExtension(subtitlePath), ".sub", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
var idxFile = Path.ChangeExtension(subtitlePath, ".idx");
|
|
if (_fileSystem.FileExists(idxFile))
|
|
{
|
|
subtitlePath = idxFile;
|
|
}
|
|
}
|
|
|
|
arg += " -i \"" + subtitlePath + "\"";
|
|
}
|
|
}
|
|
|
|
if (state.IsVideoRequest)
|
|
{
|
|
if (GetVideoEncoder(state, encodingOptions).IndexOf("vaapi", StringComparison.OrdinalIgnoreCase) != -1)
|
|
{
|
|
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
|
|
var hwOutputFormat = "vaapi";
|
|
|
|
if (hasGraphicalSubs)
|
|
{
|
|
hwOutputFormat = "yuv420p";
|
|
}
|
|
|
|
arg = "-hwaccel vaapi -hwaccel_output_format " + hwOutputFormat + " -vaapi_device " + encodingOptions.VaapiDevice + " " + arg;
|
|
}
|
|
}
|
|
|
|
return arg.Trim();
|
|
}
|
|
|
|
/// <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>
|
|
public bool IsH264(MediaStream stream)
|
|
{
|
|
var codec = stream.Codec ?? string.Empty;
|
|
|
|
return codec.IndexOf("264", StringComparison.OrdinalIgnoreCase) != -1 ||
|
|
codec.IndexOf("avc", StringComparison.OrdinalIgnoreCase) != -1;
|
|
}
|
|
|
|
public string GetVideoBitrateParam(EncodingJobInfo state, string videoCodec)
|
|
{
|
|
var bitrate = state.OutputVideoBitrate;
|
|
|
|
if (bitrate.HasValue)
|
|
{
|
|
if (string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
// 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));
|
|
}
|
|
|
|
if (string.Equals(videoCodec, "libx264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
// h264
|
|
return string.Format(" -maxrate {0} -bufsize {1}",
|
|
bitrate.Value.ToString(_usCulture),
|
|
(bitrate.Value * 2).ToString(_usCulture));
|
|
}
|
|
|
|
// h264
|
|
return string.Format(" -b:v {0} -maxrate {0} -bufsize {1}",
|
|
bitrate.Value.ToString(_usCulture),
|
|
(bitrate.Value * 2).ToString(_usCulture));
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
public string NormalizeTranscodingLevel(string videoCodec, string level)
|
|
{
|
|
double requestLevel;
|
|
|
|
// Clients may direct play higher than level 41, but there's no reason to transcode higher
|
|
if (double.TryParse(level, NumberStyles.Any, _usCulture, out requestLevel))
|
|
{
|
|
if (string.Equals(videoCodec, "h264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
if (requestLevel > 41)
|
|
{
|
|
return "41";
|
|
}
|
|
}
|
|
}
|
|
|
|
return level;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the text subtitle param.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
public string GetTextSubtitleParam(EncodingJobInfo state)
|
|
{
|
|
var seconds = Math.Round(TimeSpan.FromTicks(state.StartTimeTicks ?? 0).TotalSeconds);
|
|
|
|
var setPtsParam = state.CopyTimestamps
|
|
? string.Empty
|
|
: string.Format(",setpts=PTS -{0}/TB", seconds.ToString(_usCulture));
|
|
|
|
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, state.MediaSource.Protocol, CancellationToken.None).Result;
|
|
|
|
if (!string.IsNullOrEmpty(charenc))
|
|
{
|
|
charsetParam = ":charenc=" + charenc;
|
|
}
|
|
}
|
|
|
|
// TODO: Perhaps also use original_size=1920x800 ??
|
|
return string.Format("subtitles=filename='{0}'{1}{2}",
|
|
_mediaEncoder.EscapeSubtitleFilterPath(subtitlePath),
|
|
charsetParam,
|
|
setPtsParam);
|
|
}
|
|
|
|
var mediaPath = state.MediaPath ?? string.Empty;
|
|
|
|
return string.Format("subtitles='{0}:si={1}'{2}",
|
|
_mediaEncoder.EscapeSubtitleFilterPath(mediaPath),
|
|
state.InternalSubtitleStreamOffset.ToString(_usCulture),
|
|
setPtsParam);
|
|
}
|
|
|
|
public double? GetFramerateParam(EncodingJobInfo state)
|
|
{
|
|
var request = state.BaseRequest;
|
|
|
|
if (request.Framerate.HasValue)
|
|
{
|
|
return request.Framerate.Value;
|
|
}
|
|
|
|
var maxrate = request.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 video bitrate to specify on the command line
|
|
/// </summary>
|
|
public string GetVideoQualityParam(EncodingJobInfo state, string videoEncoder, EncodingOptions encodingOptions, string defaultH264Preset)
|
|
{
|
|
var param = string.Empty;
|
|
|
|
var isVc1 = state.VideoStream != null &&
|
|
string.Equals(state.VideoStream.Codec, "vc1", StringComparison.OrdinalIgnoreCase);
|
|
|
|
if (string.Equals(videoEncoder, "libx264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
if (!string.IsNullOrWhiteSpace(encodingOptions.H264Preset))
|
|
{
|
|
param += "-preset " + encodingOptions.H264Preset;
|
|
}
|
|
else
|
|
{
|
|
param += "-preset " + defaultH264Preset;
|
|
}
|
|
|
|
if (encodingOptions.H264Crf >= 0 && encodingOptions.H264Crf <= 51)
|
|
{
|
|
param += " -crf " + encodingOptions.H264Crf.ToString(CultureInfo.InvariantCulture);
|
|
}
|
|
else
|
|
{
|
|
param += " -crf 23";
|
|
}
|
|
}
|
|
|
|
else if (string.Equals(videoEncoder, "libx265", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param += "-preset fast";
|
|
|
|
param += " -crf 28";
|
|
}
|
|
|
|
// h264 (h264_qsv)
|
|
else if (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param += "-preset 7 -look_ahead 0";
|
|
|
|
}
|
|
|
|
// h264 (h264_nvenc)
|
|
else if (string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param += "-preset default";
|
|
}
|
|
|
|
// webm
|
|
else if (string.Equals(videoEncoder, "libvpx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
// Values 0-3, 0 being highest quality but slower
|
|
var profileScore = 0;
|
|
|
|
string crf;
|
|
var qmin = "0";
|
|
var qmax = "50";
|
|
|
|
crf = "10";
|
|
|
|
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(videoEncoder, "mpeg4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param += "-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -bf 2";
|
|
}
|
|
|
|
// asf/wmv
|
|
else if (string.Equals(videoEncoder, "wmv2", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param += "-qmin 2";
|
|
}
|
|
|
|
else if (string.Equals(videoEncoder, "msmpeg4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param += "-mbd 2";
|
|
}
|
|
|
|
param += GetVideoBitrateParam(state, videoEncoder);
|
|
|
|
var framerate = GetFramerateParam(state);
|
|
if (framerate.HasValue)
|
|
{
|
|
param += string.Format(" -r {0}", framerate.Value.ToString(_usCulture));
|
|
}
|
|
|
|
var request = state.BaseRequest;
|
|
|
|
if (!string.IsNullOrEmpty(request.Profile))
|
|
{
|
|
if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
|
|
!string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
// not supported by h264_omx
|
|
param += " -profile:v " + request.Profile;
|
|
}
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(request.Level))
|
|
{
|
|
var level = NormalizeTranscodingLevel(state.OutputVideoCodec, request.Level);
|
|
|
|
// h264_qsv and h264_nvenc expect levels to be expressed as a decimal. libx264 supports decimal and non-decimal format
|
|
// also needed for libx264 due to https://trac.ffmpeg.org/ticket/3307
|
|
if (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) ||
|
|
string.Equals(videoEncoder, "libx264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
switch (level)
|
|
{
|
|
case "30":
|
|
param += " -level 3.0";
|
|
break;
|
|
case "31":
|
|
param += " -level 3.1";
|
|
break;
|
|
case "32":
|
|
param += " -level 3.2";
|
|
break;
|
|
case "40":
|
|
param += " -level 4.0";
|
|
break;
|
|
case "41":
|
|
param += " -level 4.1";
|
|
break;
|
|
case "42":
|
|
param += " -level 4.2";
|
|
break;
|
|
case "50":
|
|
param += " -level 5.0";
|
|
break;
|
|
case "51":
|
|
param += " -level 5.1";
|
|
break;
|
|
case "52":
|
|
param += " -level 5.2";
|
|
break;
|
|
default:
|
|
param += " -level " + level;
|
|
break;
|
|
}
|
|
}
|
|
// nvenc doesn't decode with param -level set ?!
|
|
else if (string.Equals(videoEncoder, "h264_nvenc", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
//param += "";
|
|
}
|
|
else if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param += " -level " + level;
|
|
}
|
|
|
|
}
|
|
|
|
if (string.Equals(videoEncoder, "libx264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param += " -x264opts:0 subme=0:me_range=4:rc_lookahead=10:me=dia:no_chroma_me:8x8dct=0:partitions=none";
|
|
}
|
|
|
|
if (!string.Equals(videoEncoder, "h264_omx", StringComparison.OrdinalIgnoreCase) &&
|
|
!string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase) &&
|
|
!string.Equals(videoEncoder, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param = "-pix_fmt yuv420p " + param;
|
|
}
|
|
|
|
return param;
|
|
}
|
|
|
|
public bool CanStreamCopyVideo(EncodingJobInfo state, MediaStream videoStream)
|
|
{
|
|
var request = state.BaseRequest;
|
|
|
|
if (!request.AllowVideoStreamCopy)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (videoStream.IsInterlaced)
|
|
{
|
|
if (request.DeInterlace)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (videoStream.IsAnamorphic ?? false)
|
|
{
|
|
if (request.RequireNonAnamorphic)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Can't stream copy if we're burning in subtitles
|
|
if (request.SubtitleStreamIndex.HasValue)
|
|
{
|
|
if (state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (string.Equals("h264", videoStream.Codec, StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
if (videoStream.IsAVC.HasValue && !videoStream.IsAVC.Value && request.RequireAvc)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Source and target codecs must match
|
|
if (string.IsNullOrEmpty(videoStream.Codec) || !state.SupportedVideoCodecs.Contains(videoStream.Codec, StringComparer.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// If client is requesting a specific video profile, it must match the source
|
|
if (!string.IsNullOrEmpty(request.Profile))
|
|
{
|
|
if (string.IsNullOrEmpty(videoStream.Profile))
|
|
{
|
|
//return false;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(videoStream.Profile) && !string.Equals(request.Profile, videoStream.Profile, StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
var currentScore = GetVideoProfileScore(videoStream.Profile);
|
|
var requestedScore = GetVideoProfileScore(request.Profile);
|
|
|
|
if (currentScore == -1 || currentScore > requestedScore)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Video width must fall within requested value
|
|
if (request.MaxWidth.HasValue)
|
|
{
|
|
if (!videoStream.Width.HasValue || videoStream.Width.Value > request.MaxWidth.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Video height must fall within requested value
|
|
if (request.MaxHeight.HasValue)
|
|
{
|
|
if (!videoStream.Height.HasValue || videoStream.Height.Value > request.MaxHeight.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Video framerate must fall within requested value
|
|
var requestedFramerate = request.MaxFramerate ?? request.Framerate;
|
|
if (requestedFramerate.HasValue)
|
|
{
|
|
var videoFrameRate = videoStream.AverageFrameRate ?? videoStream.RealFrameRate;
|
|
|
|
if (!videoFrameRate.HasValue || videoFrameRate.Value > requestedFramerate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Video bitrate must fall within requested value
|
|
if (request.VideoBitRate.HasValue)
|
|
{
|
|
if (!videoStream.BitRate.HasValue || videoStream.BitRate.Value > request.VideoBitRate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (request.MaxVideoBitDepth.HasValue)
|
|
{
|
|
if (videoStream.BitDepth.HasValue && videoStream.BitDepth.Value > request.MaxVideoBitDepth.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (request.MaxRefFrames.HasValue)
|
|
{
|
|
if (videoStream.RefFrames.HasValue && videoStream.RefFrames.Value > request.MaxRefFrames.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// If a specific level was requested, the source must match or be less than
|
|
if (!string.IsNullOrEmpty(request.Level))
|
|
{
|
|
double requestLevel;
|
|
|
|
if (double.TryParse(request.Level, NumberStyles.Any, _usCulture, out requestLevel))
|
|
{
|
|
if (!videoStream.Level.HasValue)
|
|
{
|
|
//return false;
|
|
}
|
|
|
|
if (videoStream.Level.HasValue && videoStream.Level.Value > requestLevel)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return request.EnableAutoStreamCopy;
|
|
}
|
|
|
|
public bool CanStreamCopyAudio(EncodingJobInfo state, MediaStream audioStream, List<string> supportedAudioCodecs)
|
|
{
|
|
var request = state.BaseRequest;
|
|
|
|
if (!request.AllowAudioStreamCopy)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Source and target codecs must match
|
|
if (string.IsNullOrEmpty(audioStream.Codec) || !supportedAudioCodecs.Contains(audioStream.Codec, StringComparer.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Video bitrate must fall within requested value
|
|
if (request.AudioBitRate.HasValue)
|
|
{
|
|
if (!audioStream.BitRate.HasValue || audioStream.BitRate.Value <= 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (audioStream.BitRate.Value > request.AudioBitRate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Channels must fall within requested value
|
|
var channels = request.AudioChannels ?? request.MaxAudioChannels;
|
|
if (channels.HasValue)
|
|
{
|
|
if (!audioStream.Channels.HasValue || audioStream.Channels.Value <= 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (audioStream.Channels.Value > channels.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Sample rate must fall within requested value
|
|
if (request.AudioSampleRate.HasValue)
|
|
{
|
|
if (!audioStream.SampleRate.HasValue || audioStream.SampleRate.Value <= 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (audioStream.SampleRate.Value > request.AudioSampleRate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return request.EnableAutoStreamCopy;
|
|
}
|
|
|
|
public int? GetVideoBitrateParamValue(BaseEncodingJobOptions request, MediaStream videoStream, string outputVideoCodec)
|
|
{
|
|
var bitrate = request.VideoBitRate;
|
|
|
|
if (videoStream != null)
|
|
{
|
|
var isUpscaling = request.Height.HasValue && videoStream.Height.HasValue &&
|
|
request.Height.Value > videoStream.Height.Value;
|
|
|
|
if (request.Width.HasValue && videoStream.Width.HasValue &&
|
|
request.Width.Value > videoStream.Width.Value)
|
|
{
|
|
isUpscaling = true;
|
|
}
|
|
|
|
// Don't allow bitrate increases unless upscaling
|
|
if (!isUpscaling)
|
|
{
|
|
if (bitrate.HasValue && videoStream.BitRate.HasValue)
|
|
{
|
|
bitrate = GetMinBitrate(bitrate.Value, videoStream.BitRate.Value);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (bitrate.HasValue)
|
|
{
|
|
var inputVideoCodec = videoStream == null ? null : videoStream.Codec;
|
|
bitrate = ResolutionNormalizer.ScaleBitrate(bitrate.Value, inputVideoCodec, outputVideoCodec);
|
|
|
|
// If a max bitrate was requested, don't let the scaled bitrate exceed it
|
|
if (request.VideoBitRate.HasValue)
|
|
{
|
|
bitrate = GetMinBitrate(bitrate.Value, request.VideoBitRate.Value);
|
|
}
|
|
}
|
|
|
|
return bitrate;
|
|
}
|
|
|
|
private int GetMinBitrate(int sourceBitrate, int requestedBitrate)
|
|
{
|
|
if (sourceBitrate <= 2000000)
|
|
{
|
|
sourceBitrate *= 2;
|
|
}
|
|
else if (sourceBitrate <= 3000000)
|
|
{
|
|
sourceBitrate = Convert.ToInt32(sourceBitrate * 1.5);
|
|
}
|
|
|
|
var bitrate = Math.Min(sourceBitrate, requestedBitrate);
|
|
|
|
return bitrate;
|
|
}
|
|
|
|
public int? GetAudioBitrateParam(BaseEncodingJobOptions request, MediaStream audioStream)
|
|
{
|
|
if (request.AudioBitRate.HasValue)
|
|
{
|
|
// Make sure we don't request a bitrate higher than the source
|
|
var currentBitrate = audioStream == null ? request.AudioBitRate.Value : audioStream.BitRate ?? request.AudioBitRate.Value;
|
|
|
|
// Don't encode any higher than this
|
|
return Math.Min(384000, request.AudioBitRate.Value);
|
|
//return Math.Min(currentBitrate, request.AudioBitRate.Value);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public string GetAudioFilterParam(EncodingJobInfo state, EncodingOptions encodingOptions, bool isHls)
|
|
{
|
|
var channels = state.OutputAudioChannels;
|
|
|
|
var filters = new List<string>();
|
|
|
|
// 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 && !encodingOptions.DownMixAudioBoost.Equals(1))
|
|
{
|
|
filters.Add("volume=" + encodingOptions.DownMixAudioBoost.ToString(_usCulture));
|
|
}
|
|
}
|
|
|
|
if (state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode && !state.CopyTimestamps)
|
|
{
|
|
var seconds = TimeSpan.FromTicks(state.StartTimeTicks ?? 0).TotalSeconds;
|
|
|
|
filters.Add(string.Format("asetpts=PTS-{0}/TB", Math.Round(seconds).ToString(_usCulture)));
|
|
}
|
|
|
|
if (filters.Count > 0)
|
|
{
|
|
return "-af \"" + string.Join(",", filters.ToArray()) + "\"";
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the number of audio channels to specify on the command line
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <param name="audioStream">The audio stream.</param>
|
|
/// <param name="outputAudioCodec">The output audio codec.</param>
|
|
/// <returns>System.Nullable{System.Int32}.</returns>
|
|
public int? GetNumAudioChannelsParam(BaseEncodingJobOptions request, MediaStream audioStream, string outputAudioCodec)
|
|
{
|
|
var inputChannels = audioStream == null
|
|
? null
|
|
: audioStream.Channels;
|
|
|
|
if (inputChannels <= 0)
|
|
{
|
|
inputChannels = null;
|
|
}
|
|
|
|
int? transcoderChannelLimit = null;
|
|
var codec = outputAudioCodec ?? string.Empty;
|
|
|
|
if (codec.IndexOf("wma", StringComparison.OrdinalIgnoreCase) != -1)
|
|
{
|
|
// wmav2 currently only supports two channel output
|
|
transcoderChannelLimit = 2;
|
|
}
|
|
|
|
else if (codec.IndexOf("mp3", StringComparison.OrdinalIgnoreCase) != -1)
|
|
{
|
|
// libmp3lame currently only supports two channel output
|
|
transcoderChannelLimit = 2;
|
|
}
|
|
else
|
|
{
|
|
// If we don't have any media info then limit it to 6 to prevent encoding errors due to asking for too many channels
|
|
transcoderChannelLimit = 6;
|
|
}
|
|
|
|
var isTranscodingAudio = !string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase);
|
|
|
|
int? resultChannels = null;
|
|
if (isTranscodingAudio)
|
|
{
|
|
resultChannels = request.TranscodingMaxAudioChannels;
|
|
}
|
|
resultChannels = resultChannels ?? request.MaxAudioChannels ?? request.AudioChannels;
|
|
|
|
if (inputChannels.HasValue)
|
|
{
|
|
resultChannels = resultChannels.HasValue
|
|
? Math.Min(resultChannels.Value, inputChannels.Value)
|
|
: inputChannels.Value;
|
|
}
|
|
|
|
if (isTranscodingAudio && transcoderChannelLimit.HasValue)
|
|
{
|
|
resultChannels = resultChannels.HasValue
|
|
? Math.Min(resultChannels.Value, transcoderChannelLimit.Value)
|
|
: transcoderChannelLimit.Value;
|
|
}
|
|
|
|
return resultChannels ?? request.AudioChannels;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Enforces the resolution limit.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
public void EnforceResolutionLimit(EncodingJobInfo state)
|
|
{
|
|
var videoRequest = state.BaseRequest;
|
|
|
|
// Switch the incoming params to be ceilings rather than fixed values
|
|
videoRequest.MaxWidth = videoRequest.MaxWidth ?? videoRequest.Width;
|
|
videoRequest.MaxHeight = videoRequest.MaxHeight ?? videoRequest.Height;
|
|
|
|
videoRequest.Width = null;
|
|
videoRequest.Height = null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the fast seek command line parameter.
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <returns>System.String.</returns>
|
|
/// <value>The fast seek command line parameter.</value>
|
|
public string GetFastSeekCommandLineParameter(BaseEncodingJobOptions request)
|
|
{
|
|
var time = request.StartTimeTicks ?? 0;
|
|
|
|
if (time > 0)
|
|
{
|
|
return string.Format("-ss {0}", _mediaEncoder.GetTimeParameter(time));
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the map args.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
public string GetMapArgs(EncodingJobInfo 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
|
|
{
|
|
// No known video stream
|
|
args += "-vn";
|
|
}
|
|
|
|
if (state.AudioStream != null)
|
|
{
|
|
args += string.Format(" -map 0:{0}", state.AudioStream.Index);
|
|
}
|
|
|
|
else
|
|
{
|
|
args += " -map -0:a";
|
|
}
|
|
|
|
var subtitleMethod = state.SubtitleDeliveryMethod;
|
|
if (state.SubtitleStream == null || subtitleMethod == SubtitleDeliveryMethod.Hls)
|
|
{
|
|
args += " -map -0:s";
|
|
}
|
|
else if (subtitleMethod == SubtitleDeliveryMethod.Embed)
|
|
{
|
|
args += string.Format(" -map 0:{0}", state.SubtitleStream.Index);
|
|
}
|
|
else if (state.SubtitleStream.IsExternal && !state.SubtitleStream.IsTextSubtitleStream)
|
|
{
|
|
args += " -map 1:0 -sn";
|
|
}
|
|
|
|
return args;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines which stream will be used for playback
|
|
/// </summary>
|
|
/// <param name="allStream">All stream.</param>
|
|
/// <param name="desiredIndex">Index of the desired.</param>
|
|
/// <param name="type">The type.</param>
|
|
/// <param name="returnFirstIfNoIndex">if set to <c>true</c> [return first if no index].</param>
|
|
/// <returns>MediaStream.</returns>
|
|
public MediaStream GetMediaStream(IEnumerable<MediaStream> allStream, int? desiredIndex, MediaStreamType type, bool returnFirstIfNoIndex = true)
|
|
{
|
|
var streams = allStream.Where(s => s.Type == type).OrderBy(i => i.Index).ToList();
|
|
|
|
if (desiredIndex.HasValue)
|
|
{
|
|
var stream = streams.FirstOrDefault(s => s.Index == desiredIndex.Value);
|
|
|
|
if (stream != null)
|
|
{
|
|
return stream;
|
|
}
|
|
}
|
|
|
|
if (returnFirstIfNoIndex && type == MediaStreamType.Audio)
|
|
{
|
|
return streams.FirstOrDefault(i => i.Channels.HasValue && i.Channels.Value > 0) ??
|
|
streams.FirstOrDefault();
|
|
}
|
|
|
|
// Just return the first one
|
|
return returnFirstIfNoIndex ? streams.FirstOrDefault() : null;
|
|
}
|
|
|
|
/// <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>
|
|
public string GetGraphicalSubtitleParam(EncodingJobInfo state, string outputVideoCodec)
|
|
{
|
|
var outputSizeParam = string.Empty;
|
|
|
|
var request = state.BaseRequest;
|
|
|
|
// Add resolution params, if specified
|
|
if (request.Width.HasValue || request.Height.HasValue || request.MaxHeight.HasValue || request.MaxWidth.HasValue)
|
|
{
|
|
outputSizeParam = GetOutputSizeParam(state, outputVideoCodec).TrimEnd('"');
|
|
|
|
if (string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
outputSizeParam = "," + outputSizeParam.Substring(outputSizeParam.IndexOf("format", StringComparison.OrdinalIgnoreCase));
|
|
}
|
|
else
|
|
{
|
|
outputSizeParam = "," + outputSizeParam.Substring(outputSizeParam.IndexOf("scale", StringComparison.OrdinalIgnoreCase));
|
|
}
|
|
}
|
|
|
|
if (string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase) && outputSizeParam.Length == 0)
|
|
{
|
|
outputSizeParam = ",format=nv12|vaapi,hwupload";
|
|
}
|
|
|
|
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}]{4}[sub] ; [0:{2}] [sub] overlay{3}\"",
|
|
mapPrefix.ToString(_usCulture),
|
|
subtitleStreamIndex.ToString(_usCulture),
|
|
state.VideoStream.Index.ToString(_usCulture),
|
|
outputSizeParam,
|
|
videoSizeParam);
|
|
}
|
|
|
|
/// <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>
|
|
public string GetOutputSizeParam(EncodingJobInfo 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.BaseRequest;
|
|
|
|
var filters = new List<string>();
|
|
|
|
if (string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
filters.Add("format=nv12|vaapi");
|
|
filters.Add("hwupload");
|
|
}
|
|
|
|
if (state.DeInterlace && !string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
filters.Add("yadif=0:-1:0");
|
|
}
|
|
|
|
if (string.Equals(outputVideoCodec, "h264_vaapi", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
// Work around vaapi's reduced scaling features
|
|
var scaler = "scale_vaapi";
|
|
|
|
// Given the input dimensions (inputWidth, inputHeight), determine the output dimensions
|
|
// (outputWidth, outputHeight). The user may request precise output dimensions or maximum
|
|
// output dimensions. Output dimensions are guaranteed to be even.
|
|
decimal inputWidth = Convert.ToDecimal(state.VideoStream.Width);
|
|
decimal inputHeight = Convert.ToDecimal(state.VideoStream.Height);
|
|
decimal outputWidth = request.Width.HasValue ? Convert.ToDecimal(request.Width.Value) : inputWidth;
|
|
decimal outputHeight = request.Height.HasValue ? Convert.ToDecimal(request.Height.Value) : inputHeight;
|
|
decimal maximumWidth = request.MaxWidth.HasValue ? Convert.ToDecimal(request.MaxWidth.Value) : outputWidth;
|
|
decimal maximumHeight = request.MaxHeight.HasValue ? Convert.ToDecimal(request.MaxHeight.Value) : outputHeight;
|
|
|
|
if (outputWidth > maximumWidth || outputHeight > maximumHeight)
|
|
{
|
|
var scale = Math.Min(maximumWidth / outputWidth, maximumHeight / outputHeight);
|
|
outputWidth = Math.Min(maximumWidth, Math.Truncate(outputWidth * scale));
|
|
outputHeight = Math.Min(maximumHeight, Math.Truncate(outputHeight * scale));
|
|
}
|
|
|
|
outputWidth = 2 * Math.Truncate(outputWidth / 2);
|
|
outputHeight = 2 * Math.Truncate(outputHeight / 2);
|
|
|
|
if (outputWidth != inputWidth || outputHeight != inputHeight)
|
|
{
|
|
filters.Add(string.Format("{0}=w={1}:h={2}", scaler, outputWidth.ToString(_usCulture), outputHeight.ToString(_usCulture)));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// 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(max(iw\\,ih*dar)\\,min({0}\\,{1}*dar))/2)*2:trunc(min(max(iw/dar\\,ih)\\,min({0}/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)
|
|
{
|
|
var maxWidthParam = request.MaxWidth.Value.ToString(_usCulture);
|
|
|
|
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
|
|
else if (request.MaxHeight.HasValue)
|
|
{
|
|
var maxHeightParam = request.MaxHeight.Value.ToString(_usCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc(oh*a/2)*2:min(max(iw/dar\\,ih)\\,{0})", maxHeightParam));
|
|
}
|
|
}
|
|
|
|
var output = string.Empty;
|
|
|
|
if (state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode)
|
|
{
|
|
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 number of threads.
|
|
/// </summary>
|
|
/// <returns>System.Int32.</returns>
|
|
public int GetNumberOfThreads(EncodingJobInfo state, EncodingOptions encodingOptions, bool isWebm)
|
|
{
|
|
var threads = GetNumberOfThreadsInternal(state, encodingOptions, isWebm);
|
|
|
|
if (state.BaseRequest.CpuCoreLimit.HasValue && state.BaseRequest.CpuCoreLimit.Value > 0)
|
|
{
|
|
threads = Math.Min(threads, state.BaseRequest.CpuCoreLimit.Value);
|
|
}
|
|
|
|
return threads;
|
|
}
|
|
|
|
public void TryStreamCopy(EncodingJobInfo state)
|
|
{
|
|
if (state.VideoStream != null && CanStreamCopyVideo(state, state.VideoStream))
|
|
{
|
|
state.OutputVideoCodec = "copy";
|
|
}
|
|
else
|
|
{
|
|
var user = state.User;
|
|
|
|
// If the user doesn't have access to transcoding, then force stream copy, regardless of whether it will be compatible or not
|
|
if (user != null && !user.Policy.EnableVideoPlaybackTranscoding)
|
|
{
|
|
state.OutputVideoCodec = "copy";
|
|
}
|
|
}
|
|
|
|
if (state.AudioStream != null && CanStreamCopyAudio(state, state.AudioStream, state.SupportedAudioCodecs))
|
|
{
|
|
state.OutputAudioCodec = "copy";
|
|
}
|
|
else
|
|
{
|
|
var user = state.User;
|
|
|
|
// If the user doesn't have access to transcoding, then force stream copy, regardless of whether it will be compatible or not
|
|
if (user != null && !user.Policy.EnableAudioPlaybackTranscoding)
|
|
{
|
|
state.OutputAudioCodec = "copy";
|
|
}
|
|
}
|
|
}
|
|
|
|
public static string GetProbeSizeArgument(int numInputFiles)
|
|
{
|
|
return numInputFiles > 1 ? "-probesize 1G" : "";
|
|
}
|
|
|
|
public static string GetAnalyzeDurationArgument(int numInputFiles)
|
|
{
|
|
return numInputFiles > 1 ? "-analyzeduration 200M" : "";
|
|
}
|
|
|
|
public string GetInputModifier(EncodingJobInfo state, EncodingOptions encodingOptions)
|
|
{
|
|
var inputModifier = string.Empty;
|
|
|
|
var numInputFiles = state.PlayableStreamFileNames.Count > 0 ? state.PlayableStreamFileNames.Count : 1;
|
|
var probeSizeArgument = GetProbeSizeArgument(numInputFiles);
|
|
|
|
string analyzeDurationArgument;
|
|
if (state.MediaSource.AnalyzeDurationMs.HasValue)
|
|
{
|
|
analyzeDurationArgument = "-analyzeduration " + (state.MediaSource.AnalyzeDurationMs.Value * 1000).ToString(CultureInfo.InvariantCulture);
|
|
}
|
|
else
|
|
{
|
|
analyzeDurationArgument = GetAnalyzeDurationArgument(numInputFiles);
|
|
}
|
|
|
|
if (!string.IsNullOrWhiteSpace(probeSizeArgument))
|
|
{
|
|
inputModifier += " " + probeSizeArgument;
|
|
}
|
|
|
|
if (!string.IsNullOrWhiteSpace(analyzeDurationArgument))
|
|
{
|
|
inputModifier += " " + analyzeDurationArgument;
|
|
}
|
|
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
var userAgentParam = GetUserAgentParam(state);
|
|
|
|
if (!string.IsNullOrWhiteSpace(userAgentParam))
|
|
{
|
|
inputModifier += " " + userAgentParam;
|
|
}
|
|
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
inputModifier += " " + GetFastSeekCommandLineParameter(state.BaseRequest);
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
if (state.InputProtocol == MediaProtocol.Rtsp)
|
|
{
|
|
inputModifier += " -rtsp_transport tcp";
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.InputAudioSync))
|
|
{
|
|
inputModifier += " -async " + state.InputAudioSync;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.InputVideoSync))
|
|
{
|
|
inputModifier += " -vsync " + state.InputVideoSync;
|
|
}
|
|
|
|
if (state.ReadInputAtNativeFramerate && state.InputProtocol != MediaProtocol.Rtsp)
|
|
{
|
|
inputModifier += " -re";
|
|
}
|
|
|
|
var flags = new List<string>();
|
|
if (state.IgnoreInputDts)
|
|
{
|
|
flags.Add("+igndts");
|
|
}
|
|
if (state.IgnoreInputIndex)
|
|
{
|
|
flags.Add("+ignidx");
|
|
}
|
|
if (state.GenPtsInput)
|
|
{
|
|
flags.Add("+genpts");
|
|
}
|
|
if (state.DiscardCorruptFramesInput)
|
|
{
|
|
flags.Add("+discardcorrupt");
|
|
}
|
|
if (state.EnableFastSeekInput)
|
|
{
|
|
flags.Add("+fastseek");
|
|
}
|
|
|
|
if (flags.Count > 0)
|
|
{
|
|
inputModifier += " -fflags " + string.Join("", flags.ToArray());
|
|
}
|
|
|
|
var videoDecoder = GetVideoDecoder(state, encodingOptions);
|
|
if (!string.IsNullOrWhiteSpace(videoDecoder))
|
|
{
|
|
inputModifier += " " + videoDecoder;
|
|
}
|
|
|
|
if (state.IsVideoRequest)
|
|
{
|
|
var outputVideoCodec = GetVideoEncoder(state, encodingOptions);
|
|
|
|
// Important: If this is ever re-enabled, make sure not to use it with wtv because it breaks seeking
|
|
if (!string.Equals(state.InputContainer, "wtv", StringComparison.OrdinalIgnoreCase) &&
|
|
state.TranscodingType != TranscodingJobType.Progressive &&
|
|
state.EnableBreakOnNonKeyFrames(outputVideoCodec))
|
|
{
|
|
inputModifier += " -noaccurate_seek";
|
|
}
|
|
|
|
if (!string.IsNullOrWhiteSpace(state.InputContainer) && state.VideoType == VideoType.VideoFile && string.IsNullOrWhiteSpace(encodingOptions.HardwareAccelerationType))
|
|
{
|
|
var inputFormat = GetInputFormat(state.InputContainer);
|
|
if (!string.IsNullOrWhiteSpace(inputFormat))
|
|
{
|
|
inputModifier += " -f " + inputFormat;
|
|
}
|
|
}
|
|
|
|
// Only do this for video files due to sometimes unpredictable codec names coming from BDInfo
|
|
if (state.VideoType == VideoType.VideoFile && state.RunTimeTicks.HasValue && string.IsNullOrWhiteSpace(encodingOptions.HardwareAccelerationType))
|
|
{
|
|
foreach (var stream in state.MediaSource.MediaStreams)
|
|
{
|
|
if (!stream.IsExternal && stream.Type != MediaStreamType.Subtitle)
|
|
{
|
|
if (!string.IsNullOrWhiteSpace(stream.Codec) && stream.Index != -1)
|
|
{
|
|
var decoder = GetDecoderFromCodec(stream.Codec);
|
|
|
|
if (!string.IsNullOrWhiteSpace(decoder))
|
|
{
|
|
inputModifier += " -codec:" + stream.Index.ToString(_usCulture) + " " + decoder;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (state.MediaSource.RequiresLooping)
|
|
{
|
|
inputModifier += " -stream_loop -1";
|
|
}
|
|
|
|
return inputModifier;
|
|
}
|
|
|
|
|
|
public void AttachMediaSourceInfo(EncodingJobInfo state,
|
|
MediaSourceInfo mediaSource,
|
|
string requestedUrl)
|
|
{
|
|
if (state == null)
|
|
{
|
|
throw new ArgumentNullException("state");
|
|
}
|
|
if (mediaSource == null)
|
|
{
|
|
throw new ArgumentNullException("mediaSource");
|
|
}
|
|
|
|
state.MediaPath = mediaSource.Path;
|
|
state.InputProtocol = mediaSource.Protocol;
|
|
state.InputContainer = mediaSource.Container;
|
|
state.RunTimeTicks = mediaSource.RunTimeTicks;
|
|
state.RemoteHttpHeaders = mediaSource.RequiredHttpHeaders;
|
|
|
|
if (mediaSource.VideoType.HasValue)
|
|
{
|
|
state.VideoType = mediaSource.VideoType.Value;
|
|
}
|
|
|
|
state.IsoType = mediaSource.IsoType;
|
|
|
|
state.PlayableStreamFileNames = mediaSource.PlayableStreamFileNames.ToList();
|
|
|
|
if (mediaSource.Timestamp.HasValue)
|
|
{
|
|
state.InputTimestamp = mediaSource.Timestamp.Value;
|
|
}
|
|
|
|
state.InputProtocol = mediaSource.Protocol;
|
|
state.MediaPath = mediaSource.Path;
|
|
state.RunTimeTicks = mediaSource.RunTimeTicks;
|
|
state.RemoteHttpHeaders = mediaSource.RequiredHttpHeaders;
|
|
state.ReadInputAtNativeFramerate = mediaSource.ReadAtNativeFramerate;
|
|
|
|
if (state.ReadInputAtNativeFramerate ||
|
|
mediaSource.Protocol == MediaProtocol.File && string.Equals(mediaSource.Container, "wtv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
state.InputVideoSync = "-1";
|
|
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 (state.IsVideoRequest)
|
|
{
|
|
var videoRequest = state.BaseRequest;
|
|
|
|
if (string.IsNullOrEmpty(videoRequest.VideoCodec))
|
|
{
|
|
if (string.IsNullOrWhiteSpace(requestedUrl))
|
|
{
|
|
requestedUrl = "test." + videoRequest.OutputContainer;
|
|
}
|
|
|
|
videoRequest.VideoCodec = InferVideoCodec(requestedUrl);
|
|
}
|
|
|
|
state.VideoStream = GetMediaStream(mediaStreams, videoRequest.VideoStreamIndex, MediaStreamType.Video);
|
|
state.SubtitleStream = GetMediaStream(mediaStreams, videoRequest.SubtitleStreamIndex, MediaStreamType.Subtitle, false);
|
|
state.SubtitleDeliveryMethod = videoRequest.SubtitleMethod;
|
|
state.AudioStream = GetMediaStream(mediaStreams, videoRequest.AudioStreamIndex, MediaStreamType.Audio);
|
|
|
|
if (state.SubtitleStream != null && !state.SubtitleStream.IsExternal)
|
|
{
|
|
state.InternalSubtitleStreamOffset = mediaStreams.Where(i => i.Type == MediaStreamType.Subtitle && !i.IsExternal).ToList().IndexOf(state.SubtitleStream);
|
|
}
|
|
|
|
if (state.VideoStream != null && state.VideoStream.IsInterlaced)
|
|
{
|
|
state.DeInterlace = true;
|
|
}
|
|
|
|
EnforceResolutionLimit(state);
|
|
|
|
NormalizeSubtitleEmbed(state);
|
|
}
|
|
else
|
|
{
|
|
state.AudioStream = GetMediaStream(mediaStreams, null, MediaStreamType.Audio, true);
|
|
}
|
|
|
|
state.MediaSource = mediaSource;
|
|
}
|
|
|
|
private void NormalizeSubtitleEmbed(EncodingJobInfo state)
|
|
{
|
|
if (state.SubtitleStream == null || state.SubtitleDeliveryMethod != SubtitleDeliveryMethod.Embed)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// This is tricky to remux in, after converting to dvdsub it's not positioned correctly
|
|
// Therefore, let's just burn it in
|
|
if (string.Equals(state.SubtitleStream.Codec, "DVBSUB", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
state.SubtitleDeliveryMethod = SubtitleDeliveryMethod.Encode;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the name of the output video codec
|
|
/// </summary>
|
|
protected string GetVideoDecoder(EncodingJobInfo state, EncodingOptions encodingOptions)
|
|
{
|
|
if (string.Equals(state.OutputVideoCodec, "copy", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
// Only use alternative encoders for video files.
|
|
// When using concat with folder rips, if the mfx session fails to initialize, ffmpeg will be stuck retrying and will not exit gracefully
|
|
// Since transcoding of folder rips is expiremental anyway, it's not worth adding additional variables such as this.
|
|
if (state.VideoType != VideoType.VideoFile)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
if (state.VideoStream != null &&
|
|
!string.IsNullOrWhiteSpace(state.VideoStream.Codec) &&
|
|
!string.IsNullOrWhiteSpace(encodingOptions.HardwareAccelerationType) &&
|
|
encodingOptions.EnableHardwareDecoding)
|
|
{
|
|
if (string.Equals(encodingOptions.HardwareAccelerationType, "qsv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
switch (state.MediaSource.VideoStream.Codec.ToLower())
|
|
{
|
|
case "avc":
|
|
case "h264":
|
|
if (_mediaEncoder.SupportsDecoder("h264_qsv"))
|
|
{
|
|
// qsv decoder does not support 10-bit input
|
|
if ((state.VideoStream.BitDepth ?? 8) > 8)
|
|
{
|
|
return null;
|
|
}
|
|
return "-c:v h264_qsv ";
|
|
}
|
|
break;
|
|
//case "hevc":
|
|
//case "h265":
|
|
// if (_mediaEncoder.SupportsDecoder("hevc_qsv"))
|
|
// {
|
|
// return "-c:v hevc_qsv ";
|
|
// }
|
|
// break;
|
|
case "mpeg2video":
|
|
if (_mediaEncoder.SupportsDecoder("mpeg2_qsv"))
|
|
{
|
|
return "-c:v mpeg2_qsv ";
|
|
}
|
|
break;
|
|
case "vc1":
|
|
if (_mediaEncoder.SupportsDecoder("vc1_qsv"))
|
|
{
|
|
return "-c:v vc1_qsv ";
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
else if (string.Equals(encodingOptions.HardwareAccelerationType, "nvenc", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
switch (state.MediaSource.VideoStream.Codec.ToLower())
|
|
{
|
|
case "avc":
|
|
case "h264":
|
|
if (_mediaEncoder.SupportsDecoder("h264_cuvid"))
|
|
{
|
|
return "-c:v h264_cuvid ";
|
|
}
|
|
break;
|
|
case "hevc":
|
|
case "h265":
|
|
if (_mediaEncoder.SupportsDecoder("hevc_cuvid"))
|
|
{
|
|
return "-c:v hevc_cuvid ";
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// leave blank so ffmpeg will decide
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the number of threads.
|
|
/// </summary>
|
|
/// <returns>System.Int32.</returns>
|
|
private int GetNumberOfThreadsInternal(EncodingJobInfo state, EncodingOptions encodingOptions, bool isWebm)
|
|
{
|
|
var threads = encodingOptions.EncodingThreadCount;
|
|
|
|
if (isWebm)
|
|
{
|
|
// Recommended per docs
|
|
return Math.Max(Environment.ProcessorCount - 1, 2);
|
|
}
|
|
|
|
// Automatic
|
|
if (threads == -1)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return threads;
|
|
}
|
|
|
|
public string GetSubtitleEmbedArguments(EncodingJobInfo state)
|
|
{
|
|
if (state.SubtitleStream == null || state.SubtitleDeliveryMethod != SubtitleDeliveryMethod.Embed)
|
|
{
|
|
return string.Empty;
|
|
}
|
|
|
|
var format = state.SupportedSubtitleCodecs.FirstOrDefault();
|
|
string codec;
|
|
|
|
if (string.IsNullOrWhiteSpace(format) || string.Equals(format, state.SubtitleStream.Codec, StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
codec = "copy";
|
|
}
|
|
else
|
|
{
|
|
codec = format;
|
|
}
|
|
|
|
var args = " -codec:s:0 " + codec;
|
|
|
|
args += " -disposition:s:0 default";
|
|
|
|
return args;
|
|
}
|
|
|
|
public string GetProgressiveVideoFullCommandLine(EncodingJobInfo state, EncodingOptions encodingOptions, string outputPath, string defaultH264Preset)
|
|
{
|
|
// Get the output codec name
|
|
var videoCodec = GetVideoEncoder(state, encodingOptions);
|
|
|
|
var format = string.Empty;
|
|
var keyFrame = string.Empty;
|
|
|
|
if (string.Equals(Path.GetExtension(outputPath), ".mp4", StringComparison.OrdinalIgnoreCase) &&
|
|
state.BaseRequest.Context == EncodingContext.Streaming)
|
|
{
|
|
// Comparison: https://github.com/jansmolders86/mediacenterjs/blob/master/lib/transcoding/desktop.js
|
|
format = " -f mp4 -movflags frag_keyframe+empty_moov";
|
|
}
|
|
|
|
var threads = GetNumberOfThreads(state, encodingOptions, string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase));
|
|
|
|
var inputModifier = GetInputModifier(state, encodingOptions);
|
|
|
|
return string.Format("{0} {1}{2} {3} {4} -map_metadata -1 -map_chapters -1 -threads {5} {6}{7}{8} -y \"{9}\"",
|
|
inputModifier,
|
|
GetInputArgument(state, encodingOptions),
|
|
keyFrame,
|
|
GetMapArgs(state),
|
|
GetProgressiveVideoArguments(state, encodingOptions, videoCodec, defaultH264Preset),
|
|
threads,
|
|
GetProgressiveVideoAudioArguments(state, encodingOptions),
|
|
GetSubtitleEmbedArguments(state),
|
|
format,
|
|
outputPath
|
|
).Trim();
|
|
}
|
|
|
|
public string GetOutputFFlags(EncodingJobInfo state)
|
|
{
|
|
var flags = new List<string>();
|
|
if (state.GenPtsOutput)
|
|
{
|
|
flags.Add("+genpts");
|
|
}
|
|
|
|
if (flags.Count > 0)
|
|
{
|
|
return " -fflags " + string.Join("", flags.ToArray());
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
public string GetProgressiveVideoArguments(EncodingJobInfo state, EncodingOptions encodingOptions, string videoCodec, string defaultH264Preset)
|
|
{
|
|
var args = "-codec:v:0 " + videoCodec;
|
|
|
|
if (state.EnableMpegtsM2TsMode)
|
|
{
|
|
args += " -mpegts_m2ts_mode 1";
|
|
}
|
|
|
|
if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
if (state.VideoStream != null && IsH264(state.VideoStream) &&
|
|
string.Equals(state.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) &&
|
|
!string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
args += " -bsf:v h264_mp4toannexb";
|
|
}
|
|
|
|
if (state.RunTimeTicks.HasValue && state.BaseRequest.CopyTimestamps)
|
|
{
|
|
args += " -copyts -avoid_negative_ts disabled -start_at_zero";
|
|
}
|
|
|
|
if (!state.RunTimeTicks.HasValue)
|
|
{
|
|
args += " -flags -global_header -fflags +genpts";
|
|
}
|
|
}
|
|
else
|
|
{
|
|
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 && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
|
|
|
|
var hasCopyTs = false;
|
|
// Add resolution params, if specified
|
|
if (!hasGraphicalSubs)
|
|
{
|
|
var outputSizeParam = GetOutputSizeParam(state, videoCodec);
|
|
args += outputSizeParam;
|
|
hasCopyTs = outputSizeParam.IndexOf("copyts", StringComparison.OrdinalIgnoreCase) != -1;
|
|
}
|
|
|
|
if (state.RunTimeTicks.HasValue && state.BaseRequest.CopyTimestamps)
|
|
{
|
|
if (!hasCopyTs)
|
|
{
|
|
args += " -copyts";
|
|
}
|
|
args += " -avoid_negative_ts disabled -start_at_zero";
|
|
}
|
|
|
|
var qualityParam = GetVideoQualityParam(state, videoCodec, encodingOptions, defaultH264Preset);
|
|
|
|
if (!string.IsNullOrEmpty(qualityParam))
|
|
{
|
|
args += " " + qualityParam.Trim();
|
|
}
|
|
|
|
// This is for internal graphical subs
|
|
if (hasGraphicalSubs)
|
|
{
|
|
args += GetGraphicalSubtitleParam(state, videoCodec);
|
|
}
|
|
|
|
if (!state.RunTimeTicks.HasValue)
|
|
{
|
|
args += " -flags -global_header";
|
|
}
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.OutputVideoSync))
|
|
{
|
|
args += " -vsync " + state.OutputVideoSync;
|
|
}
|
|
|
|
args += GetOutputFFlags(state);
|
|
|
|
return args;
|
|
}
|
|
|
|
public string GetProgressiveVideoAudioArguments(EncodingJobInfo state, EncodingOptions encodingOptions)
|
|
{
|
|
// If the video doesn't have an audio stream, return a default.
|
|
if (state.AudioStream == null && state.VideoStream != null)
|
|
{
|
|
return string.Empty;
|
|
}
|
|
|
|
// Get the output codec name
|
|
var codec = GetAudioEncoder(state);
|
|
|
|
var args = "-codec:a:0 " + codec;
|
|
|
|
if (string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return args;
|
|
}
|
|
|
|
// Add the number of audio channels
|
|
var channels = state.OutputAudioChannels;
|
|
|
|
if (channels.HasValue)
|
|
{
|
|
args += " -ac " + channels.Value;
|
|
}
|
|
|
|
var bitrate = state.OutputAudioBitrate;
|
|
|
|
if (bitrate.HasValue)
|
|
{
|
|
args += " -ab " + bitrate.Value.ToString(_usCulture);
|
|
}
|
|
|
|
if (state.OutputAudioSampleRate.HasValue)
|
|
{
|
|
args += " -ar " + state.OutputAudioSampleRate.Value.ToString(_usCulture);
|
|
}
|
|
|
|
args += " " + GetAudioFilterParam(state, encodingOptions, false);
|
|
|
|
return args;
|
|
}
|
|
|
|
public string GetProgressiveAudioFullCommandLine(EncodingJobInfo state, EncodingOptions encodingOptions, string outputPath)
|
|
{
|
|
var audioTranscodeParams = new List<string>();
|
|
|
|
var bitrate = state.OutputAudioBitrate;
|
|
|
|
if (bitrate.HasValue)
|
|
{
|
|
audioTranscodeParams.Add("-ab " + bitrate.Value.ToString(_usCulture));
|
|
}
|
|
|
|
if (state.OutputAudioChannels.HasValue)
|
|
{
|
|
audioTranscodeParams.Add("-ac " + state.OutputAudioChannels.Value.ToString(_usCulture));
|
|
}
|
|
|
|
// opus will fail on 44100
|
|
if (!string.Equals(state.OutputAudioCodec, "opus", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
if (state.OutputAudioSampleRate.HasValue)
|
|
{
|
|
audioTranscodeParams.Add("-ar " + state.OutputAudioSampleRate.Value.ToString(_usCulture));
|
|
}
|
|
}
|
|
|
|
var albumCoverInput = string.Empty;
|
|
var mapArgs = string.Empty;
|
|
var metadata = string.Empty;
|
|
var vn = string.Empty;
|
|
|
|
var hasArt = !string.IsNullOrWhiteSpace(state.AlbumCoverPath);
|
|
|
|
if (hasArt)
|
|
{
|
|
albumCoverInput = " -i \"" + state.AlbumCoverPath + "\"";
|
|
mapArgs = " -map 0:a -map 1:v -c:1:v copy";
|
|
metadata = " -metadata:s:v title=\"Album cover\" -metadata:s:v comment=\"Cover(Front)\"";
|
|
}
|
|
else
|
|
{
|
|
vn = " -vn";
|
|
}
|
|
|
|
var threads = GetNumberOfThreads(state, encodingOptions, false);
|
|
|
|
var inputModifier = GetInputModifier(state, encodingOptions);
|
|
|
|
return string.Format("{0} {1}{7}{8} -threads {2}{3} {4} -id3v2_version 3 -write_id3v1 1{6} -y \"{5}\"",
|
|
inputModifier,
|
|
GetInputArgument(state, encodingOptions),
|
|
threads,
|
|
vn,
|
|
string.Join(" ", audioTranscodeParams.ToArray()),
|
|
outputPath,
|
|
metadata,
|
|
albumCoverInput,
|
|
mapArgs).Trim();
|
|
}
|
|
|
|
}
|
|
}
|