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using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Session;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using MediaBrowser.Model.Diagnostics;
namespace MediaBrowser.MediaEncoding.Encoder
{
public class AudioEncoder : BaseEncoder
{
public AudioEncoder(MediaEncoder mediaEncoder, ILogger logger, IServerConfigurationManager configurationManager, IFileSystem fileSystem, IIsoManager isoManager, ILibraryManager libraryManager, ISessionManager sessionManager, ISubtitleEncoder subtitleEncoder, IMediaSourceManager mediaSourceManager, IProcessFactory processFactory) : base(mediaEncoder, logger, configurationManager, fileSystem, isoManager, libraryManager, sessionManager, subtitleEncoder, mediaSourceManager, processFactory)
{
}
protected override Task<string> GetCommandLineArguments(EncodingJob state)
{
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 encodingOptions = GetEncodingOptions();
var threads = EncodingHelper.GetNumberOfThreads(state, encodingOptions, false);
var inputModifier = EncodingHelper.GetInputModifier(state, encodingOptions);
var albumCoverInput = string.Empty;
var mapArgs = string.Empty;
var metadata = string.Empty;
var vn = string.Empty;
var hasArt = !string.IsNullOrWhiteSpace(state.AlbumCoverPath);
hasArt = false;
if (hasArt)
{
albumCoverInput = " -i \"" + state.AlbumCoverPath + "\"";
mapArgs = " -map 0:a -map 1:v -c:v copy";
metadata = " -metadata:s:v title=\"Album cover\" -metadata:s:v comment=\"Cover(Front)\"";
}
else
{
vn = " -vn";
}
var result = string.Format("{0} {1}{6}{7} -threads {2}{3} {4} -id3v2_version 3 -write_id3v1 1{8} -y \"{5}\"",
inputModifier,
EncodingHelper.GetInputArgument(state, GetEncodingOptions()),
threads,
vn,
string.Join(" ", audioTranscodeParams.ToArray()),
state.OutputFilePath,
albumCoverInput,
mapArgs,
metadata).Trim();
return Task.FromResult(result);
}
protected override string GetOutputFileExtension(EncodingJob state)
{
var ext = base.GetOutputFileExtension(state);
if (!string.IsNullOrEmpty(ext))
{
return ext;
}
var audioCodec = state.Options.AudioCodec;
if (string.Equals("aac", audioCodec, StringComparison.OrdinalIgnoreCase))
{
return ".aac";
}
if (string.Equals("mp3", audioCodec, StringComparison.OrdinalIgnoreCase))
{
return ".mp3";
}
if (string.Equals("vorbis", audioCodec, StringComparison.OrdinalIgnoreCase))
{
return ".ogg";
}
if (string.Equals("wma", audioCodec, StringComparison.OrdinalIgnoreCase))
{
return ".wma";
}
return null;
}
protected override bool IsVideoEncoder
{
get { return false; }
}
}
}
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