mirror of
https://github.com/jellyfin/jellyfin.git
synced 2024-09-07 03:48:06 +02:00
365 lines
12 KiB
C#
365 lines
12 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Globalization;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using MediaBrowser.Model.Entities;
|
|
using MediaBrowser.Model.IO;
|
|
|
|
namespace MediaBrowser.Controller.MediaInfo
|
|
{
|
|
/// <summary>
|
|
/// Class MediaEncoderHelpers
|
|
/// </summary>
|
|
public static class MediaEncoderHelpers
|
|
{
|
|
/// <summary>
|
|
/// Gets the input argument.
|
|
/// </summary>
|
|
/// <param name="videoPath">The video path.</param>
|
|
/// <param name="isRemote">if set to <c>true</c> [is remote].</param>
|
|
/// <param name="videoType">Type of the video.</param>
|
|
/// <param name="isoType">Type of the iso.</param>
|
|
/// <param name="isoMount">The iso mount.</param>
|
|
/// <param name="playableStreamFileNames">The playable stream file names.</param>
|
|
/// <param name="type">The type.</param>
|
|
/// <returns>System.String[][].</returns>
|
|
public static string[] GetInputArgument(string videoPath, bool isRemote, VideoType videoType, IsoType? isoType, IIsoMount isoMount, IEnumerable<string> playableStreamFileNames, out InputType type)
|
|
{
|
|
var inputPath = isoMount == null ? new[] { videoPath } : new[] { isoMount.MountedPath };
|
|
|
|
type = InputType.File;
|
|
|
|
switch (videoType)
|
|
{
|
|
case VideoType.BluRay:
|
|
type = InputType.Bluray;
|
|
break;
|
|
case VideoType.Dvd:
|
|
type = InputType.Dvd;
|
|
inputPath = GetPlayableStreamFiles(inputPath[0], playableStreamFileNames).ToArray();
|
|
break;
|
|
case VideoType.Iso:
|
|
if (isoType.HasValue)
|
|
{
|
|
switch (isoType.Value)
|
|
{
|
|
case IsoType.BluRay:
|
|
type = InputType.Bluray;
|
|
break;
|
|
case IsoType.Dvd:
|
|
type = InputType.Dvd;
|
|
inputPath = GetPlayableStreamFiles(inputPath[0], playableStreamFileNames).ToArray();
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case VideoType.VideoFile:
|
|
{
|
|
if (isRemote)
|
|
{
|
|
type = InputType.Url;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return inputPath;
|
|
}
|
|
|
|
public static List<string> GetPlayableStreamFiles(string rootPath, IEnumerable<string> filenames)
|
|
{
|
|
var allFiles = Directory
|
|
.EnumerateFiles(rootPath, "*", SearchOption.AllDirectories)
|
|
.ToList();
|
|
|
|
return filenames.Select(name => allFiles.FirstOrDefault(f => string.Equals(Path.GetFileName(f), name, StringComparison.OrdinalIgnoreCase)))
|
|
.Where(f => !string.IsNullOrEmpty(f))
|
|
.ToList();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the type of the input.
|
|
/// </summary>
|
|
/// <param name="videoType">Type of the video.</param>
|
|
/// <param name="isoType">Type of the iso.</param>
|
|
/// <returns>InputType.</returns>
|
|
public static InputType GetInputType(VideoType? videoType, IsoType? isoType)
|
|
{
|
|
var type = InputType.File;
|
|
|
|
if (videoType.HasValue)
|
|
{
|
|
switch (videoType.Value)
|
|
{
|
|
case VideoType.BluRay:
|
|
type = InputType.Bluray;
|
|
break;
|
|
case VideoType.Dvd:
|
|
type = InputType.Dvd;
|
|
break;
|
|
case VideoType.Iso:
|
|
if (isoType.HasValue)
|
|
{
|
|
switch (isoType.Value)
|
|
{
|
|
case IsoType.BluRay:
|
|
type = InputType.Bluray;
|
|
break;
|
|
case IsoType.Dvd:
|
|
type = InputType.Dvd;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
public static Model.Entities.MediaInfo GetMediaInfo(InternalMediaInfoResult data)
|
|
{
|
|
var internalStreams = data.streams ?? new MediaStreamInfo[] { };
|
|
|
|
var info = new Model.Entities.MediaInfo();
|
|
|
|
info.MediaStreams = internalStreams.Select(s => GetMediaStream(s, data.format))
|
|
.Where(i => i != null)
|
|
.ToList();
|
|
|
|
if (data.format != null)
|
|
{
|
|
info.Format = data.format.format_name;
|
|
}
|
|
|
|
return info;
|
|
}
|
|
|
|
private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
|
|
|
|
/// <summary>
|
|
/// Converts ffprobe stream info to our MediaStream class
|
|
/// </summary>
|
|
/// <param name="streamInfo">The stream info.</param>
|
|
/// <param name="formatInfo">The format info.</param>
|
|
/// <returns>MediaStream.</returns>
|
|
private static MediaStream GetMediaStream(MediaStreamInfo streamInfo, MediaFormatInfo formatInfo)
|
|
{
|
|
var stream = new MediaStream
|
|
{
|
|
Codec = streamInfo.codec_name,
|
|
Profile = streamInfo.profile,
|
|
Level = streamInfo.level,
|
|
Index = streamInfo.index
|
|
};
|
|
|
|
if (streamInfo.tags != null)
|
|
{
|
|
stream.Language = GetDictionaryValue(streamInfo.tags, "language");
|
|
}
|
|
|
|
if (string.Equals(streamInfo.codec_type, "audio", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
stream.Type = MediaStreamType.Audio;
|
|
|
|
stream.Channels = streamInfo.channels;
|
|
|
|
if (!string.IsNullOrEmpty(streamInfo.sample_rate))
|
|
{
|
|
stream.SampleRate = int.Parse(streamInfo.sample_rate, UsCulture);
|
|
}
|
|
|
|
stream.ChannelLayout = ParseChannelLayout(streamInfo.channel_layout);
|
|
}
|
|
else if (string.Equals(streamInfo.codec_type, "subtitle", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
stream.Type = MediaStreamType.Subtitle;
|
|
}
|
|
else if (string.Equals(streamInfo.codec_type, "video", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
stream.Type = MediaStreamType.Video;
|
|
|
|
stream.Width = streamInfo.width;
|
|
stream.Height = streamInfo.height;
|
|
stream.AspectRatio = GetAspectRatio(streamInfo);
|
|
|
|
stream.AverageFrameRate = GetFrameRate(streamInfo.avg_frame_rate);
|
|
stream.RealFrameRate = GetFrameRate(streamInfo.r_frame_rate);
|
|
}
|
|
else
|
|
{
|
|
return null;
|
|
}
|
|
|
|
// Get stream bitrate
|
|
if (stream.Type != MediaStreamType.Subtitle)
|
|
{
|
|
var bitrate = 0;
|
|
|
|
if (!string.IsNullOrEmpty(streamInfo.bit_rate))
|
|
{
|
|
bitrate = int.Parse(streamInfo.bit_rate, UsCulture);
|
|
}
|
|
else if (formatInfo != null && !string.IsNullOrEmpty(formatInfo.bit_rate))
|
|
{
|
|
// If the stream info doesn't have a bitrate get the value from the media format info
|
|
bitrate = int.Parse(formatInfo.bit_rate, UsCulture);
|
|
}
|
|
|
|
if (bitrate > 0)
|
|
{
|
|
stream.BitRate = bitrate;
|
|
}
|
|
}
|
|
|
|
if (streamInfo.disposition != null)
|
|
{
|
|
var isDefault = GetDictionaryValue(streamInfo.disposition, "default");
|
|
var isForced = GetDictionaryValue(streamInfo.disposition, "forced");
|
|
|
|
stream.IsDefault = string.Equals(isDefault, "1", StringComparison.OrdinalIgnoreCase);
|
|
|
|
stream.IsForced = string.Equals(isForced, "1", StringComparison.OrdinalIgnoreCase);
|
|
}
|
|
|
|
return stream;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets a string from an FFProbeResult tags dictionary
|
|
/// </summary>
|
|
/// <param name="tags">The tags.</param>
|
|
/// <param name="key">The key.</param>
|
|
/// <returns>System.String.</returns>
|
|
private static string GetDictionaryValue(Dictionary<string, string> tags, string key)
|
|
{
|
|
if (tags == null)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
string val;
|
|
|
|
tags.TryGetValue(key, out val);
|
|
return val;
|
|
}
|
|
|
|
private static string ParseChannelLayout(string input)
|
|
{
|
|
if (string.IsNullOrEmpty(input))
|
|
{
|
|
return input;
|
|
}
|
|
|
|
return input.Split('(').FirstOrDefault();
|
|
}
|
|
|
|
private static string GetAspectRatio(MediaStreamInfo info)
|
|
{
|
|
var original = info.display_aspect_ratio;
|
|
|
|
int height;
|
|
int width;
|
|
|
|
var parts = (original ?? string.Empty).Split(':');
|
|
if (!(parts.Length == 2 &&
|
|
int.TryParse(parts[0], NumberStyles.Any, UsCulture, out width) &&
|
|
int.TryParse(parts[1], NumberStyles.Any, UsCulture, out height) &&
|
|
width > 0 &&
|
|
height > 0))
|
|
{
|
|
width = info.width;
|
|
height = info.height;
|
|
}
|
|
|
|
if (width > 0 && height > 0)
|
|
{
|
|
double ratio = width;
|
|
ratio /= height;
|
|
|
|
if (IsClose(ratio, 1.777777778, .03))
|
|
{
|
|
return "16:9";
|
|
}
|
|
|
|
if (IsClose(ratio, 1.3333333333, .05))
|
|
{
|
|
return "4:3";
|
|
}
|
|
|
|
if (IsClose(ratio, 1.41))
|
|
{
|
|
return "1.41:1";
|
|
}
|
|
|
|
if (IsClose(ratio, 1.5))
|
|
{
|
|
return "1.5:1";
|
|
}
|
|
|
|
if (IsClose(ratio, 1.6))
|
|
{
|
|
return "1.6:1";
|
|
}
|
|
|
|
if (IsClose(ratio, 1.66666666667))
|
|
{
|
|
return "5:3";
|
|
}
|
|
|
|
if (IsClose(ratio, 1.85, .02))
|
|
{
|
|
return "1.85:1";
|
|
}
|
|
|
|
if (IsClose(ratio, 2.35, .025))
|
|
{
|
|
return "2.35:1";
|
|
}
|
|
|
|
if (IsClose(ratio, 2.4, .025))
|
|
{
|
|
return "2.40:1";
|
|
}
|
|
}
|
|
|
|
return original;
|
|
}
|
|
|
|
private static bool IsClose(double d1, double d2, double variance = .005)
|
|
{
|
|
return Math.Abs(d1 - d2) <= variance;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets a frame rate from a string value in ffprobe output
|
|
/// This could be a number or in the format of 2997/125.
|
|
/// </summary>
|
|
/// <param name="value">The value.</param>
|
|
/// <returns>System.Nullable{System.Single}.</returns>
|
|
private static float? GetFrameRate(string value)
|
|
{
|
|
if (!string.IsNullOrEmpty(value))
|
|
{
|
|
var parts = value.Split('/');
|
|
|
|
float result;
|
|
|
|
if (parts.Length == 2)
|
|
{
|
|
result = float.Parse(parts[0], UsCulture) / float.Parse(parts[1], UsCulture);
|
|
}
|
|
else
|
|
{
|
|
result = float.Parse(parts[0], UsCulture);
|
|
}
|
|
|
|
return float.IsNaN(result) ? (float?)null : result;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
}
|
|
}
|