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Merge pull request #9388 from Shadowghost/output-bitrate-channels-master

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Bond-009 2023-03-20 17:46:11 +01:00 committed by GitHub
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7 changed files with 213 additions and 66 deletions
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43
Jellyfin.Api/Controllers/DynamicHlsController.cs
View file

@ -12,6 +12,7 @@ using Jellyfin.Api.Attributes;
using Jellyfin.Api.Helpers;
using Jellyfin.Api.Models.PlaybackDtos;
using Jellyfin.Api.Models.StreamingDtos;
using Jellyfin.Extensions;
using Jellyfin.MediaEncoding.Hls.Playlist;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.Configuration;
@ -1687,14 +1688,25 @@ public class DynamicHlsController : BaseJellyfinApiController
audioTranscodeParams += "-acodec " + audioCodec;
if (state.OutputAudioBitrate.HasValue)
var audioBitrate = state.OutputAudioBitrate;
var audioChannels = state.OutputAudioChannels;
if (audioBitrate.HasValue && !EncodingHelper.LosslessAudioCodecs.Contains(state.ActualOutputAudioCodec, StringComparison.OrdinalIgnoreCase))
{
audioTranscodeParams += " -ab " + state.OutputAudioBitrate.Value.ToString(CultureInfo.InvariantCulture);
var vbrParam = _encodingHelper.GetAudioVbrModeParam(state.OutputAudioCodec, audioBitrate.Value / (audioChannels ?? 2));
if (_encodingOptions.EnableAudioVbr && vbrParam is not null)
{
audioTranscodeParams += vbrParam;
}
else
{
audioTranscodeParams += " -ab " + audioBitrate.Value.ToString(CultureInfo.InvariantCulture);
}
}
if (state.OutputAudioChannels.HasValue)
if (audioChannels.HasValue)
{
audioTranscodeParams += " -ac " + state.OutputAudioChannels.Value.ToString(CultureInfo.InvariantCulture);
audioTranscodeParams += " -ac " + audioChannels.Value.ToString(CultureInfo.InvariantCulture);
}
if (state.OutputAudioSampleRate.HasValue)
@ -1708,11 +1720,11 @@ public class DynamicHlsController : BaseJellyfinApiController
// dts, flac, opus and truehd are experimental in mp4 muxer
var strictArgs = string.Empty;
if (string.Equals(state.ActualOutputAudioCodec, "flac", StringComparison.OrdinalIgnoreCase)
|| string.Equals(state.ActualOutputAudioCodec, "opus", StringComparison.OrdinalIgnoreCase)
|| string.Equals(state.ActualOutputAudioCodec, "dts", StringComparison.OrdinalIgnoreCase)
|| string.Equals(state.ActualOutputAudioCodec, "truehd", StringComparison.OrdinalIgnoreCase))
var actualOutputAudioCodec = state.ActualOutputAudioCodec;
if (string.Equals(actualOutputAudioCodec, "flac", StringComparison.OrdinalIgnoreCase)
|| string.Equals(actualOutputAudioCodec, "opus", StringComparison.OrdinalIgnoreCase)
|| string.Equals(actualOutputAudioCodec, "dts", StringComparison.OrdinalIgnoreCase)
|| string.Equals(actualOutputAudioCodec, "truehd", StringComparison.OrdinalIgnoreCase))
{
strictArgs = " -strict -2";
}
@ -1746,10 +1758,17 @@ public class DynamicHlsController : BaseJellyfinApiController
}
var bitrate = state.OutputAudioBitrate;
if (bitrate.HasValue)
if (bitrate.HasValue && !EncodingHelper.LosslessAudioCodecs.Contains(actualOutputAudioCodec, StringComparison.OrdinalIgnoreCase))
{
args += " -ab " + bitrate.Value.ToString(CultureInfo.InvariantCulture);
var vbrParam = _encodingHelper.GetAudioVbrModeParam(actualOutputAudioCodec, bitrate.Value / (channels ?? 2));
if (_encodingOptions.EnableAudioVbr && vbrParam is not null)
{
args += vbrParam;
}
else
{
args += " -ab " + bitrate.Value.ToString(CultureInfo.InvariantCulture);
}
}
if (state.OutputAudioSampleRate.HasValue)

13
Jellyfin.Api/Helpers/DynamicHlsHelper.cs
View file

@ -9,6 +9,7 @@ using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Api.Extensions;
using Jellyfin.Api.Models.StreamingDtos;
using Jellyfin.Extensions;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Common.Net;
@ -223,9 +224,17 @@ public class DynamicHlsHelper
sdrVideoUrl += "&AllowVideoStreamCopy=false";
var sdrOutputVideoBitrate = _encodingHelper.GetVideoBitrateParamValue(state.VideoRequest, state.VideoStream, state.OutputVideoCodec);
var sdrOutputAudioBitrate = _encodingHelper.GetAudioBitrateParam(state.VideoRequest, state.AudioStream) ?? 0;
var sdrTotalBitrate = sdrOutputAudioBitrate + sdrOutputVideoBitrate;
var sdrOutputAudioBitrate = 0;
if (EncodingHelper.LosslessAudioCodecs.Contains(state.VideoRequest.AudioCodec, StringComparison.OrdinalIgnoreCase))
{
sdrOutputAudioBitrate = state.AudioStream.BitRate ?? 0;
}
else
{
sdrOutputAudioBitrate = _encodingHelper.GetAudioBitrateParam(state.VideoRequest, state.AudioStream, state.OutputAudioChannels) ?? 0;
}
var sdrTotalBitrate = sdrOutputAudioBitrate + sdrOutputVideoBitrate;
var sdrPlaylist = AppendPlaylist(builder, state, sdrVideoUrl, sdrTotalBitrate, subtitleGroup);
// Provide a workaround for the case issue between flac and fLaC.

16
Jellyfin.Api/Helpers/StreamingHelpers.cs
View file

@ -181,12 +181,18 @@ public static class StreamingHelpers
: GetOutputFileExtension(state, mediaSource);
}
var outputAudioCodec = streamingRequest.AudioCodec;
if (EncodingHelper.LosslessAudioCodecs.Contains(outputAudioCodec))
{
state.OutputAudioBitrate = state.AudioStream.BitRate ?? 0;
}
else
{
state.OutputAudioBitrate = encodingHelper.GetAudioBitrateParam(streamingRequest.AudioBitRate, streamingRequest.AudioCodec, state.AudioStream, state.OutputAudioChannels) ?? 0;
}
state.OutputAudioCodec = outputAudioCodec;
state.OutputContainer = (containerInternal ?? string.Empty).TrimStart('.');
state.OutputAudioBitrate = encodingHelper.GetAudioBitrateParam(streamingRequest.AudioBitRate, streamingRequest.AudioCodec, state.AudioStream);
state.OutputAudioCodec = streamingRequest.AudioCodec;
state.OutputAudioChannels = encodingHelper.GetNumAudioChannelsParam(state, state.AudioStream, state.OutputAudioCodec);
if (state.VideoRequest is not null)

172
MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
View file

@ -89,6 +89,16 @@ namespace MediaBrowser.Controller.MediaEncoding
{ "truehd", 6 },
};
public static readonly string[] LosslessAudioCodecs = new string[]
{
"alac",
"ape",
"flac",
"mlp",
"truehd",
"wavpack"
};
public EncodingHelper(
IApplicationPaths appPaths,
IMediaEncoder mediaEncoder,
@ -620,6 +630,11 @@ namespace MediaBrowser.Controller.MediaEncoding
return "flac";
}
if (string.Equals(codec, "dts", StringComparison.OrdinalIgnoreCase))
{
return "dca";
}
return codec.ToLowerInvariant();
}
@ -2050,9 +2065,9 @@ namespace MediaBrowser.Controller.MediaEncoding
}
}
// Video bitrate must fall within requested value
// Audio bitrate must fall within requested value
if (request.AudioBitRate.HasValue
&& audioStream.BitDepth.HasValue
&& audioStream.BitRate.HasValue
&& audioStream.BitRate.Value > request.AudioBitRate.Value)
{
return false;
@ -2161,56 +2176,96 @@ namespace MediaBrowser.Controller.MediaEncoding
return Convert.ToInt32(scaleFactor * bitrate);
}
public int? GetAudioBitrateParam(BaseEncodingJobOptions request, MediaStream audioStream)
public int? GetAudioBitrateParam(BaseEncodingJobOptions request, MediaStream audioStream, int? outputAudioChannels)
{
return GetAudioBitrateParam(request.AudioBitRate, request.AudioCodec, audioStream);
return GetAudioBitrateParam(request.AudioBitRate, request.AudioCodec, audioStream, outputAudioChannels);
}
public int? GetAudioBitrateParam(int? audioBitRate, string audioCodec, MediaStream audioStream)
public int? GetAudioBitrateParam(int? audioBitRate, string audioCodec, MediaStream audioStream, int? outputAudioChannels)
{
if (audioStream is null)
{
return null;
}
if (audioBitRate.HasValue && string.IsNullOrEmpty(audioCodec))
var inputChannels = audioStream.Channels ?? 0;
var outputChannels = outputAudioChannels ?? 0;
var bitrate = audioBitRate ?? int.MaxValue;
if (string.IsNullOrEmpty(audioCodec)
|| string.Equals(audioCodec, "aac", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "mp3", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "opus", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "vorbis", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "ac3", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "eac3", StringComparison.OrdinalIgnoreCase))
{
return Math.Min(384000, audioBitRate.Value);
return (inputChannels, outputChannels) switch
{
(>= 6, >= 6 or 0) => Math.Min(640000, bitrate),
(> 0, > 0) => Math.Min(outputChannels * 128000, bitrate),
(> 0, _) => Math.Min(inputChannels * 128000, bitrate),
(_, _) => Math.Min(384000, bitrate)
};
}
if (audioBitRate.HasValue && !string.IsNullOrEmpty(audioCodec))
if (string.Equals(audioCodec, "dts", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "dca", StringComparison.OrdinalIgnoreCase))
{
if (string.Equals(audioCodec, "aac", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "mp3", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "opus", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "vorbis", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "ac3", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "eac3", StringComparison.OrdinalIgnoreCase))
return (inputChannels, outputChannels) switch
{
if ((audioStream.Channels ?? 0) >= 6)
{
return Math.Min(640000, audioBitRate.Value);
}
return Math.Min(384000, audioBitRate.Value);
}
if (string.Equals(audioCodec, "flac", StringComparison.OrdinalIgnoreCase)
|| string.Equals(audioCodec, "alac", StringComparison.OrdinalIgnoreCase))
{
if ((audioStream.Channels ?? 0) >= 6)
{
return Math.Min(3584000, audioBitRate.Value);
}
return Math.Min(1536000, audioBitRate.Value);
}
(>= 6, >= 6 or 0) => Math.Min(768000, bitrate),
(> 0, > 0) => Math.Min(outputChannels * 136000, bitrate),
(> 0, _) => Math.Min(inputChannels * 136000, bitrate),
(_, _) => Math.Min(672000, bitrate)
};
}
// Empty bitrate area is not allow on iOS
// Default audio bitrate to 128K if it is not being requested
// Default audio bitrate to 128K per channel if we don't have codec specific defaults
// https://ffmpeg.org/ffmpeg-codecs.html#toc-Codec-Options
return 128000;
return 128000 * (outputAudioChannels ?? audioStream.Channels ?? 2);
}
public string GetAudioVbrModeParam(string encoder, int bitratePerChannel)
{
if (string.Equals(encoder, "libfdk_aac", StringComparison.OrdinalIgnoreCase))
{
return " -vbr:a " + bitratePerChannel switch
{
< 32000 => "1",
< 48000 => "2",
< 64000 => "3",
< 96000 => "4",
_ => "5"
};
}
if (string.Equals(encoder, "libmp3lame", StringComparison.OrdinalIgnoreCase))
{
return " -qscale:a " + bitratePerChannel switch
{
< 48000 => "8",
< 64000 => "6",
< 88000 => "4",
< 112000 => "2",
_ => "0"
};
}
if (string.Equals(encoder, "libvorbis", StringComparison.OrdinalIgnoreCase))
{
return " -qscale:a " + bitratePerChannel switch
{
< 40000 => "0",
< 56000 => "2",
< 80000 => "4",
< 112000 => "6",
_ => "8"
};
}
return null;
}
public string GetAudioFilterParam(EncodingJobInfo state, EncodingOptions encodingOptions)
@ -5670,14 +5725,22 @@ namespace MediaBrowser.Controller.MediaEncoding
}
var inputChannels = audioStream is null ? 6 : audioStream.Channels ?? 6;
var shiftAudioCodecs = new List<string>();
if (inputChannels >= 6)
{
return;
// DTS and TrueHD are not supported by HLS
// Keep them in the supported codecs list, but shift them to the end of the list so that if transcoding happens, another codec is used
shiftAudioCodecs.Add("dca");
shiftAudioCodecs.Add("truehd");
}
else
{
// Transcoding to 2ch ac3 or eac3 almost always causes a playback failure
// Keep them in the supported codecs list, but shift them to the end of the list so that if transcoding happens, another codec is used
shiftAudioCodecs.Add("ac3");
shiftAudioCodecs.Add("eac3");
}
// Transcoding to 2ch ac3 almost always causes a playback failure
// Keep it in the supported codecs list, but shift it to the end of the list so that if transcoding happens, another codec is used
var shiftAudioCodecs = new[] { "ac3", "eac3" };
if (audioCodecs.All(i => shiftAudioCodecs.Contains(i, StringComparison.OrdinalIgnoreCase)))
{
return;
@ -5919,10 +5982,17 @@ namespace MediaBrowser.Controller.MediaEncoding
}
var bitrate = state.OutputAudioBitrate;
if (bitrate.HasValue)
if (bitrate.HasValue && !LosslessAudioCodecs.Contains(codec, StringComparison.OrdinalIgnoreCase))
{
args += " -ab " + bitrate.Value.ToString(CultureInfo.InvariantCulture);
var vbrParam = GetAudioVbrModeParam(codec, bitrate.Value / (channels ?? 2));
if (encodingOptions.EnableAudioVbr && vbrParam is not null)
{
args += vbrParam;
}
else
{
args += " -ab " + bitrate.Value.ToString(CultureInfo.InvariantCulture);
}
}
if (state.OutputAudioSampleRate.HasValue)
@ -5940,23 +6010,33 @@ namespace MediaBrowser.Controller.MediaEncoding
var audioTranscodeParams = new List<string>();
var bitrate = state.OutputAudioBitrate;
var channels = state.OutputAudioChannels;
var outputCodec = state.OutputAudioCodec;
if (bitrate.HasValue)
if (bitrate.HasValue && !LosslessAudioCodecs.Contains(outputCodec, StringComparison.OrdinalIgnoreCase))
{
audioTranscodeParams.Add("-ab " + bitrate.Value.ToString(CultureInfo.InvariantCulture));
var vbrParam = GetAudioVbrModeParam(outputCodec, bitrate.Value / (channels ?? 2));
if (encodingOptions.EnableAudioVbr && vbrParam is not null)
{
audioTranscodeParams.Add(vbrParam);
}
else
{
audioTranscodeParams.Add("-ab " + bitrate.Value.ToString(CultureInfo.InvariantCulture));
}
}
if (state.OutputAudioChannels.HasValue)
if (channels.HasValue)
{
audioTranscodeParams.Add("-ac " + state.OutputAudioChannels.Value.ToString(CultureInfo.InvariantCulture));
}
if (!string.IsNullOrEmpty(state.OutputAudioCodec))
if (!string.IsNullOrEmpty(outputCodec))
{
audioTranscodeParams.Add("-acodec " + GetAudioEncoder(state));
}
if (!string.Equals(state.OutputAudioCodec, "opus", StringComparison.OrdinalIgnoreCase))
if (!string.Equals(outputCodec, "opus", StringComparison.OrdinalIgnoreCase))
{
// opus only supports specific sampling rates
var sampleRate = state.OutputAudioSampleRate;

5
MediaBrowser.MediaEncoding/Encoder/EncoderValidator.cs
View file

@ -25,11 +25,12 @@ namespace MediaBrowser.MediaEncoding.Encoder
"mpeg2video",
"mpeg4",
"msmpeg4",
"dts",
"dca",
"ac3",
"aac",
"mp3",
"flac",
"truehd",
"h264_qsv",
"hevc_qsv",
"mpeg2_qsv",
@ -59,10 +60,12 @@ namespace MediaBrowser.MediaEncoding.Encoder
"aac_at",
"libfdk_aac",
"ac3",
"dca",
"libmp3lame",
"libopus",
"libvorbis",
"flac",
"truehd",
"srt",
"h264_amf",
"hevc_amf",

6
MediaBrowser.Model/Configuration/EncodingOptions.cs
View file

@ -14,6 +14,7 @@ public class EncodingOptions
public EncodingOptions()
{
EnableFallbackFont = false;
EnableAudioVbr = false;
DownMixAudioBoost = 2;
DownMixStereoAlgorithm = DownMixStereoAlgorithms.None;
MaxMuxingQueueSize = 2048;
@ -71,6 +72,11 @@ public class EncodingOptions
/// </summary>
public bool EnableFallbackFont { get; set; }
/// <summary>
/// Gets or sets a value indicating whether audio VBR is enabled.
/// </summary>
public bool EnableAudioVbr { get; set; }
/// <summary>
/// Gets or sets the audio boost applied when downmixing audio.
/// </summary>

24
MediaBrowser.Model/Dlna/StreamBuilder.cs
View file

@ -23,6 +23,9 @@ namespace MediaBrowser.Model.Dlna
private readonly ILogger _logger;
private readonly ITranscoderSupport _transcoderSupport;
private static readonly string[] _supportedHlsVideoCodecs = new string[] { "h264", "hevc" };
private static readonly string[] _supportedHlsAudioCodecsTs = new string[] { "aac", "ac3", "eac3", "mp3" };
private static readonly string[] _supportedHlsAudioCodecsMp4 = new string[] { "aac", "ac3", "eac3", "mp3", "alac", "flac", "opus", "dca", "truehd" };
/// <summary>
/// Initializes a new instance of the <see cref="StreamBuilder"/> class.
@ -801,6 +804,13 @@ namespace MediaBrowser.Model.Dlna
{
// Prefer matching video codecs
var videoCodecs = ContainerProfile.SplitValue(videoCodec);
// Enforce HLS video codec restrictions
if (string.Equals(playlistItem.SubProtocol, "hls", StringComparison.OrdinalIgnoreCase))
{
videoCodecs = videoCodecs.Where(codec => _supportedHlsVideoCodecs.Contains(codec)).ToArray();
}
var directVideoCodec = ContainerProfile.ContainsContainer(videoCodecs, videoStream?.Codec) ? videoStream?.Codec : null;
if (directVideoCodec is not null)
{
@ -836,6 +846,20 @@ namespace MediaBrowser.Model.Dlna
// Prefer matching audio codecs, could do better here
var audioCodecs = ContainerProfile.SplitValue(audioCodec);
// Enforce HLS audio codec restrictions
if (string.Equals(playlistItem.SubProtocol, "hls", StringComparison.OrdinalIgnoreCase))
{
if (string.Equals(playlistItem.Container, "mp4", StringComparison.OrdinalIgnoreCase))
{
audioCodecs = audioCodecs.Where(codec => _supportedHlsAudioCodecsMp4.Contains(codec)).ToArray();
}
else
{
audioCodecs = audioCodecs.Where(codec => _supportedHlsAudioCodecsTs.Contains(codec)).ToArray();
}
}
var directAudioStream = candidateAudioStreams.FirstOrDefault(stream => ContainerProfile.ContainsContainer(audioCodecs, stream.Codec));
playlistItem.AudioCodecs = audioCodecs;
if (directAudioStream is not null)