122 lines
3.8 KiB
C#
122 lines
3.8 KiB
C#
using MediaBrowser.Controller.MediaEncoding;
|
|
using MediaBrowser.Model.Configuration;
|
|
using MediaBrowser.Model.Entities;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Globalization;
|
|
using System.Linq;
|
|
|
|
namespace MediaBrowser.MediaEncoding.Encoder
|
|
{
|
|
public static class EncodingUtils
|
|
{
|
|
private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
|
|
|
|
public static string GetInputArgument(List<string> inputFiles, bool isRemote)
|
|
{
|
|
if (isRemote)
|
|
{
|
|
return GetHttpInputArgument(inputFiles);
|
|
}
|
|
|
|
return GetConcatInputArgument(inputFiles);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the concat input argument.
|
|
/// </summary>
|
|
/// <param name="inputFiles">The input files.</param>
|
|
/// <returns>System.String.</returns>
|
|
private static string GetConcatInputArgument(IReadOnlyList<string> inputFiles)
|
|
{
|
|
// Get all streams
|
|
// If there's more than one we'll need to use the concat command
|
|
if (inputFiles.Count > 1)
|
|
{
|
|
var files = string.Join("|", inputFiles);
|
|
|
|
return string.Format("concat:\"{0}\"", files);
|
|
}
|
|
|
|
// Determine the input path for video files
|
|
return GetFileInputArgument(inputFiles[0]);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the file input argument.
|
|
/// </summary>
|
|
/// <param name="path">The path.</param>
|
|
/// <returns>System.String.</returns>
|
|
private static string GetFileInputArgument(string path)
|
|
{
|
|
return string.Format("file:\"{0}\"", path);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the HTTP input argument.
|
|
/// </summary>
|
|
/// <param name="inputFiles">The input files.</param>
|
|
/// <returns>System.String.</returns>
|
|
private static string GetHttpInputArgument(IEnumerable<string> inputFiles)
|
|
{
|
|
var url = inputFiles.First();
|
|
|
|
return string.Format("\"{0}\"", url);
|
|
}
|
|
|
|
private static string GetFastSeekValue(EncodingOptions options)
|
|
{
|
|
var time = options.StartTimeTicks;
|
|
|
|
if (time.HasValue)
|
|
{
|
|
var seconds = TimeSpan.FromTicks(time.Value).TotalSeconds;
|
|
|
|
if (seconds > 0)
|
|
{
|
|
return string.Format("-ss {0}", seconds.ToString(UsCulture));
|
|
}
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
public static string GetProbeSizeArgument(bool isDvd)
|
|
{
|
|
return isDvd ? "-probesize 1G -analyzeduration 200M" : 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>
|
|
/// <returns>System.Nullable{System.Int32}.</returns>
|
|
public static int? GetNumAudioChannelsParam(EncodingOptions request, MediaStream audioStream)
|
|
{
|
|
if (audioStream != null)
|
|
{
|
|
var codec = request.AudioCodec ?? string.Empty;
|
|
|
|
if (audioStream.Channels > 2 && codec.IndexOf("wma", StringComparison.OrdinalIgnoreCase) != -1)
|
|
{
|
|
// wmav2 currently only supports two channel output
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
if (request.MaxAudioChannels.HasValue)
|
|
{
|
|
if (audioStream != null && audioStream.Channels.HasValue)
|
|
{
|
|
return Math.Min(request.MaxAudioChannels.Value, audioStream.Channels.Value);
|
|
}
|
|
|
|
return request.MaxAudioChannels.Value;
|
|
}
|
|
|
|
return request.AudioChannels;
|
|
}
|
|
}
|
|
}
|