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Add support for VobSub subtitle streams (#16552)

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* Add support for VobSub subtitle streams

* update logic to determine separate extraction for VobSub subtitles

* simplify VobSub extraction logic and fix ffmpeg command

* Match `ExtractAllExtractableSubtitlesMKS` with `ExtractAllExtractableSubtitlesInternal` Matroska's VobSub option

* Add a comments clarify why MKS was used, and remove the redundant VobSub extension branch

* remove redundant VobSub format check

* fix type errors
This commit is contained in:
Neptune
2026-05-31 22:18:25 +07:00
committed by GitHub
parent 13c6549b42
commit 6f0ff89bdc
4 changed files with 74 additions and 15 deletions
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30
MediaBrowser.Model/Entities/MediaStream.cs
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@@ -644,13 +644,32 @@ namespace MediaBrowser.Model.Entities
}
}
[JsonIgnore]
public bool IsVobSubSubtitleStream
{
get
{
if (Type != MediaStreamType.Subtitle)
{
return false;
}
if (string.IsNullOrEmpty(Codec) && !IsExternal)
{
return false;
}
return IsVobSubFormat(Codec);
}
}
/// <summary>
/// Gets a value indicating whether this is a subtitle steam that is extractable by ffmpeg.
/// All text-based and pgs subtitles can be extracted.
/// </summary>
/// <value><c>true</c> if this is a extractable subtitle steam otherwise, <c>false</c>.</value>
[JsonIgnore]
public bool IsExtractableSubtitleStream => IsTextSubtitleStream || IsPgsSubtitleStream;
public bool IsExtractableSubtitleStream => IsTextSubtitleStream || IsPgsSubtitleStream || IsVobSubSubtitleStream;
/// <summary>
/// Gets or sets a value indicating whether [supports external stream].
@@ -728,6 +747,7 @@ namespace MediaBrowser.Model.Entities
return codec.Contains("microdvd", StringComparison.OrdinalIgnoreCase)
|| (!codec.Contains("pgs", StringComparison.OrdinalIgnoreCase)
&& !codec.Contains("dvdsub", StringComparison.OrdinalIgnoreCase)
&& !codec.Contains("vobsub", StringComparison.OrdinalIgnoreCase)
&& !codec.Contains("dvbsub", StringComparison.OrdinalIgnoreCase)
&& !string.Equals(codec, "sup", StringComparison.OrdinalIgnoreCase)
&& !string.Equals(codec, "sub", StringComparison.OrdinalIgnoreCase));
@@ -741,6 +761,14 @@ namespace MediaBrowser.Model.Entities
|| string.Equals(codec, "sup", StringComparison.OrdinalIgnoreCase);
}
public static bool IsVobSubFormat(string format)
{
string codec = format ?? string.Empty;
return codec.Contains("dvdsub", StringComparison.OrdinalIgnoreCase)
|| codec.Contains("vobsub", StringComparison.OrdinalIgnoreCase);
}
public bool SupportsSubtitleConversionTo(string toCodec)
{
if (!IsTextSubtitleStream)